• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    Recovery tank for recovery unit of an agricultural spraying system that includes two evacuation holes. The invention relates to a recovery tank (10) for a recovery unit of an agricultural spraying system that comprises a tank containing a treatment liquid and at least one spraying device that sprays the treatment liquid from the tank on the plants to be treated. in a field, comprising the recovery tank: - a bottom (11) that closes the recovery tank downwards, - an opening (12) opposite the bottom following a vertical direction (Z) and by means of which the recovery tank recovers the excess treatment liquid sprayed by the spraying devices on the plants to be treated, and - at least one side wall (13, 14, 15) extending from the bottom up towards the opening, - a pair of evacuation holes (23, 24) of the treatment liquid recovered in the recovery tank, the evacuation holes being separated from each other following a horizontal longitudinal direction (X) oriented from back to front in the direction of advance of the agricultural spraying system. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2841777A2
    申请号:ES202030950
    申请日:2020-09-18
    公开日:2021-07-09
    发明作者:Thomas Boucquemont
    申请人:Exel Industries SA；
    IPC主号:
    专利说明:

    [0002] RECOVERY DEPOSIT FOR A RECOVERY SET OF A
    [0004] TECHNICAL FIELD
    [0005] The invention relates to a recovery tank for a recovery unit of an agricultural spraying system, in particular a viticultural one, to a recovery unit for an agricultural spraying system comprising such a recovery tank, as well as to an agricultural spraying system that it comprises a recovery unit of this type.
    [0006] STATE OF THE PRIOR ART
    [0007] In a known manner, an agricultural spraying system, in particular viticultural or woodland, comprises a feeding circuit that joins a tank of treatment liquid, such as a phytosanitary product or a liquid fertilizer, to a spraying device by means of a pump that sucks the treatment liquid from the tank to feed the spray device. The spraying device also has nozzles designed to spray the treatment liquid sucked by the pump onto the plants to be treated from a field.
    [0008] The agricultural spraying system also comprises at least one recovery panel designed to recover the excess treatment liquid that is sprayed on the plants to be treated.
    [0009] For this, when the agricultural spraying system advances in the field, the plants to be treated are interposed, for example, between the nozzles of the spraying device and the recuperator panel that is in front of the nozzles and that it is designed to capture excess sprayed treatment liquid. The treatment liquid thus captured then flows by gravity, in the form of droplets, along the recovery panel to a recovery tank which is open upward.
    [0010] In order to prevent this recovery tank from filling up with treatment liquid and overflowing, but also for economic and environmental reasons, the recovery tank is provided with an evacuation hole that communicates, on the one hand, with the interior of the recovery tank and, on the other hand, with a return circuit that returns the recovered treatment liquid to the tank, in particular, by means of a pump or a Venturi effect device.
    [0011] The recovery tank also comprises a bottom that can have at least one inclined face, following a longitudinal direction oriented from back to front in the direction of advance of the agricultural spraying system, downwards and towards the evacuation orifice so that the liquid treatment recovered in the recovery tank accumulates at the level of the evacuation orifice, thus favoring its evacuation towards the tank. When the discharge hole is longitudinally centered with respect to the bottom of the recovery tank, the bottom has, for example, two faces inclined towards each other following the longitudinal direction, downwards and towards the discharge hole, said faces forming a V.
    [0012] On the other hand, it is known to increase the slope of the bottom of the recovery tank, in order to prevent the treatment liquid recovered in the recovery tank from overflowing when the agricultural spraying system advances in the field on a slope, in particular, of high percentage.
    [0013] Now, the more inclined the face (s) of the bottom of the recovery tank are, the more the height of the recovery tank increases.
    [0014] In addition, if the recovery tank is not close to the ground, the recovery tank is too high and prevents the recovery of excess treatment liquid sprayed on the lower part of the plants to be treated, which is not tolerable so much from a point of economic and environmental view. However, bringing the recovery tank closer to the ground is problematic, as this increases the risks that the tank will be torn off on uneven ground.
    [0015] EXHIBITION OF THE INVENTION
    [0016] The present invention aims to overcome these drawbacks, in particular, by proposing a recovery tank for a recovery unit of an agricultural spraying system, comprising a pair of evacuation holes separated from each other following a longitudinal direction oriented from back to front in the direction of advance of the agricultural spraying system.
    [0017] More precisely, the invention has as its object a recovery tank for a recovery unit of an agricultural spraying system comprising a tank, designed to contain a treatment liquid, and at least one spraying device designed to spray treatment liquid from the tank on some plants to be treated in a field, comprising the recovery tank:
    [0018] - a bottom that closes the recovery tank downwards,
    [0019] - an opening opposite the bottom following a vertical direction and by means of which the recovery tank is intended to recover the excess treatment liquid sprayed by the one or one of the spraying devices on the plants to be treated,
    [0020] - at least one side wall extending from the bottom up towards the opening and defining with the bottom an interior volume of the recovery tank and
    [0021] - a pair of evacuation holes for the treatment liquid recovered in the recovery tank, each of the evacuation holes communicating, on the one hand, with the internal volume of the recovery tank and which is intended to communicate, on the other hand, with the tank through a return circuit of the agricultural spraying system, the evacuation holes being separated from each other following a horizontal longitudinal direction oriented from back to front in the direction of advance of the agricultural spraying system.
    [0022] According to some embodiment variants that can be taken together or separately:
    [0023] - the recovery tank comprising successively, following the longitudinal direction, a rear end portion in which a rear end of the recovery tank is formed, a median portion and a rear end portion in which a rear end of the recovery tank is formed; - one of the evacuation holes is further formed in the front end portion of the recovery tank, the other of the evacuation holes is formed in the rear end portion of the recovery tank;
    [0024] - the median portion represents at least 50 % of the length of the recovery tank, preferably at least 70% of the length of the recovery tank;
    [0025] - each of the evacuation holes is longitudinally closer to each other one of the front or rear ends that of the other evacuation hole; - some axes around which each of the evacuation holes extend are comprised in the same globally horizontal plane; - the bottom comprises a first internal face, globally horizontal, which extends at least between the evacuation orifices following the longitudinal direction.
    [0026] The invention also has as its object a recovery unit for an agricultural spraying system comprising a tank, intended to contain a treatment liquid, and at least one spraying device intended to spray the treatment liquid from the tank on the plants to be treated. in a field, the recovery assembly comprising a recovery tank, as described above.
    [0027] According to some embodiment variants that can be taken together or separately:
    [0028] - the recovery unit comprises a pair of first filtering members, each one designed to filter, in a first filtering position, the treatment liquid recovered in the recovery tank, when it is evacuated through the evacuation orifices;
    [0029] - each first filtering member is suitable to be mounted in the first filtering position and to be disassembled from said first filtering position from outside the recovery tank;
    [0030] - The recovery unit also comprises a second filtering member designed to filter, in a second filtering position, the excess sprayed treatment liquid that penetrates into the interior volume of the recovery tank, through its opening, before reaching the bottom of the same;
    [0031] - the second filtering member is suitable to be mounted in the second filtering position and to be removed from said second filtering position from outside the recovery tank.
    [0032] The invention also has as its object an agricultural spraying system comprising:
    [0033] - a tank designed to contain a treatment liquid,
    [0034] - at least one spraying device designed to spray the treatment liquid coming from the tank onto the plants to be treated in a field, - at least one recovery unit, as described above and - a return circuit that communicates, by one side, with the drainage holes of the recovery tank and, on the other side, with the tank.
    [0035] The return circuit comprises, for example, a suction mechanism designed to suck, by Venturi effect, through the evacuation orifices of the recovery tank the treatment liquid recovered by said recovery tank and to discharge it towards the tank.
    [0036] The suction mechanism comprises, for example, at least one pair of Venturi effect devices each comprising a suction orifice that communicates with one of the evacuation orifices through a suction conduit, a discharge orifice that is communicates with the tank through a discharge conduit and a feed orifice that communicates with the tank through a feed circuit, each Venturi effect device being designed, in addition, to create a depression at the suction orifice , when treatment liquid circulates through said Venturi effect device from the feed port to the discharge port, to cause a suction of the treatment liquid recovered in the recovery tank from the drain hole to the discharge hole.
    [0037] BRIEF DESCRIPTION OF THE DRAWINGS
    [0038] Other aspects, purposes, advantages and characteristics of the invention will become more apparent upon reading the following detailed description of preferred embodiments thereof, given by way of non-limiting example and made with reference to the attached drawings in the that:
    [0039] [Fig. 1] is a schematic view of an agricultural spraying system comprising at least one recovery unit comprising, in turn, a recovery tank according to an embodiment of the invention;
    [0040] [Fig. 2] is a side view of a recovery unit comprising a recovery tank according to an embodiment of the invention;
    [0041] [Fig. 3] is a perspective view of the recuperator assembly illustrated in figure 2;
    [0042] [Fig. 4] is a detailed view of a front end portion of the recovery tank illustrated in Figures 2 and 3, in which first and second filter members respectively occupy their first and second filter positions;
    [0043] [Fig. 5] is a detailed view of the front end portion of the recovery tank illustrated in figure 4, in which the first filtering member does not occupy its first filtering position and the second filtering member occupies its second filtering position;
    [0044] [Fig. 6] is a detailed view of the first filter member illustrated in figure 4;
    [0045] [Fig. 7] is a partial, detailed view of the front end portion of the recovery tank illustrated in Figures 4 and 5, in which the first filtering member does not occupy its first filtering position and the second filtering member occupies its second filtering position;
    [0046] [Fig. 8] is a detailed view of the front end portion of the recovery tank illustrated in Figures 4, 5 and 7, in which the first filtering member occupies its first filtering position and the second filtering member does not occupy its second position filtering;
    [0047] [Fig. 9] is a partial, detailed view of the front end portion of the recovery tank illustrated in Figures 4, 5, 7 and 8, in which the first filtering member does not occupy its first filtering position and the second filtering member filtering is partially represented in its second filtering position;
    [0048] [Fig. 10] is a partial, detailed view of the front end portion of a recovery tank according to another embodiment of the invention, in which the first filtering member does not occupy its first filtering position and the second filtering member is partially represented in its second filtering position;
    [0049] [Fig. 11] is a detailed view of a variant of the first filter member.
    [0050] DETAILED DESCRIPTION
    [0051] Figure 1 shows an agricultural spraying system 100, in particular viticultural, comprising a tank 101 intended to contain a treatment liquid L, in particular a phytosanitary product or a liquid fertilizer, at least one spraying device 102 designed to spraying the treatment liquid L from the tank 101 on the plants to be treated in a field and at least one recovery unit 103 comprising, in turn, a recovery tank 10 according to an embodiment of the invention.
    [0052] By "liquid" it is understood that the product contained in tank 101 comprises a liquid phase. It is, for example, in the form of a solution or else a suspension.
    [0053] In the remainder of the description, a global reference is adopted by way of non-limitation that includes a longitudinal direction X oriented from back to front in the direction of advance of the agricultural spraying system 100, a transverse direction Y oriented from right to left and a vertical Z direction oriented from bottom to top. The longitudinal X and transverse Y directions are horizontal and substantially parallel to a soil S.
    [0054] When the soil S is "flat", that is, with zero slope, the vertical direction Z coincides with the direction of the force of gravity of the agricultural spraying system 100. When the soil is sloping, the vertical direction Z is inclined with respect to the direction of the force of gravity of the agricultural spray system 100.
    [0055] The agricultural spraying system 100 is in contact with the soil S, in particular, through wheels (not shown) by means of which the agricultural spraying system 100 advances in the field.
    [0056] Agricultural spraying system 100 is intended, for example, to be towed by an agricultural machine (not shown), such as a tractor. As a variant, the agricultural spraying system 100 is intended to be carried by the agricultural machine. Also as a variant, the agricultural spraying system 100 is self-propelled and thus forms the agricultural machine.
    [0057] An example of recovery assembly 103 is shown in more detail in the
    [0060] Figures 2 to 9.
    [0061] The recovery tank 10 of the recovery unit 103 is designed to recover the excess treatment liquid L sprayed by the one or one of the spraying devices 102 on the plants to be treated.
    [0062] For this, the recovery tank 10 comprises a bottom 11, which closes the recovery tank 10 downwards, as well as an opening 12 opposite said bottom 11 following the vertical direction Z. The opening 12 extends around a substantially vertical axis (not represented). The recovery tank 10 is thus opened upwards to recover by gravity the excess sprayed treatment liquid L, as will be explained in more detail later in the description.
    [0063] The recovery tank 10 also comprises one or more side walls 13, 14, 15, 16 that extend from the bottom 11 upwards towards the opening 12 and that define with said bottom 11 an interior volume 17 of the recovery tank 10.
    [0064] In the remainder of the description, the terms "interior" and "exterior" are understood with respect to the interior volume 17 of the recovery tank 10.
    [0065] The recovery tank 10 comprises, for example, a front side wall 13 and a rear side wall 15 opposite each other in the longitudinal direction X. The front 13 and rear 15 side walls are further oriented substantially perpendicularly. to the longitudinal direction X.
    [0066] The recovery tank 10 may also comprise a first side side wall 14 and a second side side wall 16 that extend globally in parallel with respect to each other between the walls. front 13 and rear 15 sides. The first and second side walls 14, 16 are further oriented substantially perpendicular to the transverse direction Y.
    [0067] The first side wall 14 is, for example, removable, to allow cleaning of the interior volume 17 of the recovery tank 10. For this, for example, it is fixed to the front side wall 13, to the rear side wall 15 and to the bottom 11 removably, in particular by reversible elastic lace.
    [0068] In Figures 2 to 9, without this being limiting, the first side wall 14 corresponds to a left side wall, while the second side wall 16 corresponds to a right side wall.
    [0069] The recovery tank 10 has, for example, a dimension taken along the longitudinal direction X, called length, which is greater than a dimension taken along the transverse direction Y, called width. The length of the recovery tank 10 is taken, for example, between its front 13 and rear side walls 15. The width of the recovery tank 10 is taken, for example, between its first and second side side walls 14, 16.
    [0070] The recovery tank 10 also successively comprises, following the longitudinal direction X, a front end portion 18 in which a front end 19 of the recovery tank 10 is formed, a median portion 20 and a rear end portion 21 in which it is formed. a rear end 22 of the recovery tank 10. The median portion 20 is thus extended longitudinally, on the one hand, towards the front end 19 by the front end portion 18 and, on the other hand, toward the rear end 22 by rear end portion 21.
    [0071] The front end 19 of the recovery tank 10 is defined, for example, by the front side wall 13 of said recovery tank 10. Also, the rear end 22 of the recovery tank 10 is defined, for example, by the rear side wall 15 of said recovery tank 10.
    [0072] The median portion 20 of the recovery tank 10 represents, for example, at least 50% of the length of the recovery tank 10, preferably at least 70 % of the length of the recovery tank 10.
    [0073] The recovery tank 10 also comprises a pair of evacuation holes 23, 24 of the treatment liquid L recovered in the recovery tank 10 (Figures 3 to 5 and 7). Each of the evacuation orifices 23, 24 communicates, on the one hand, with the interior volume 17 of the recovery tank 10 and, on the other hand, with the tank 101 through a return circuit 104 of the agricultural spraying system 100 , thus connecting the return circuit 104 each of the evacuation holes 23, 24 to the tank 101.
    [0074] Furthermore, the evacuation holes 23, 24 are separated from each other or also separated from one another following the longitudinal direction X. One 23 of the evacuation holes 23, 24, called the front evacuation hole, is located, of this mode, further forward of the recovery tank 10, while the other 24 of the discharge ports 23, 24, called the rear discharge port, is located further aft of the recovery tank 10.
    [0075] In this way, the treatment liquid L can be selectively evacuated, depending on the slope of the floor S, through one or the other of the evacuation holes 23, 24 or even through the two evacuation holes 23,
    [0078] 24. In this way, on a sloping floor S, the treatment liquid L can be evacuated through one or the other of the evacuation holes 23, 24 and on a flat floor S, that is, with zero slope, through both drain holes 23, 24. This makes it possible to avoid overflowing of the treatment liquid L recovered in the recovery tank 10 regardless of the slope of the floor S.
    [0079] One 23 of the discharge holes 23, 24 of the recovery tank 10 is formed, for example, in the front end portion 18 of the recovery tank 10, while the other 24 of the discharge holes 23, 24 is formed in the portion of the rear end 21 of the recovery tank 10. The evacuation holes 23, 24 are thus arranged on the opposite side of each other following the longitudinal direction X, one 23 of the evacuation holes 23, 24 being called orifice front evacuation hole, located at the front of the recovery tank 10, the other 24 being of the evacuation holes 23, 24, called the rear drain hole, located at the rear of the recovery tank 10.
    [0080] In this way, overflows of the treatment liquid L recovered in the recovery tank 10 are avoided, even when the slope of the floor S is of a high percentage, for example, 50%.
    [0081] Each of the front 23 and rear 24 exhaust ports are longitudinally closer to one of the front 19 or rear 22 ends than to the other of the rear 24 or front 23 ports.
    [0082] The front 23 and rear 24 discharge ports of the recovery tank 10 extend, for example, each about a substantially transverse axis 25, 26 (Figures 3-5 and 7). To do this, the holes in Front 23 and rear 24 evacuation are formed, for example, in the second side wall 16, here the right side wall, which they traverse from part to part.
    [0083] As a variant (not shown), the front 23 and rear 24 exhaust ports each extend about a substantially longitudinal axis. To do this, the front 23 and rear 24 discharge openings are formed, for example, respectively in the front side wall 13 and the rear side wall 15, which pass through from part to part.
    [0084] The front 23 and rear 24 evacuation holes have, for example, the same dimensions. For example, each one has a section, taken perpendicular to its respective axis 25, 26, of the same diameter.
    [0085] The axes 25, 26 of the front 23 and rear 24 evacuation openings lie, for example, in the same globally horizontal plane P1 (Figures 2 and 3).
    [0086] The recovery tank 10 comprises, for example, other evacuation holes in addition to the pair of front 23 and rear 24 drain holes. In other words, the number of drain holes of the recovery tank 10, including the front drain holes 23 and rear 24, it is not necessarily limited to two and therefore may be greater than two.
    [0087] When the recovery tank 10 comprises one or more evacuation holes, in addition to the pair of front 23 and rear 24 drain holes, said drain holes may be formed in the second side wall 16 and / or in the front side wall 13 and / or on the rear side wall 15. These evacuation holes can be freely distributed along the longitudinal direction X, regularly spaced or not, along this
    [0090] address. "Along the longitudinal direction X" is understood to mean evacuation holes that are positioned on a virtual line that forms this longitudinal direction X or also positioned substantially on both sides of this line following the vertical direction Z.
    [0091] The bottom 11 of the recovery tank 10 may further comprise a first globally horizontal inner face 27, which extends at least between the front 23 and rear 24 discharge openings in the longitudinal direction X (Figure 7). This makes it possible to reduce a dimension of the recovery tank 10 taken following the vertical direction Z, called height and, therefore, to increase the compactness of the recovery tank 10 and of the recovery unit 103. The recovery unit 103 can then be more robust and, therefore more secure. This also makes it possible to avoid choosing between bringing the recovery tank 10 closer to the ground S to recover the excess treatment liquid L sprayed on the lower part of the plants to be treated, which increases the risks that the recovery tank 10 will be torn off on a uneven terrain, and not recovering excess treatment liquid L sprayed on the lower part of the plants to be treated, which is neither economically nor ecologically satisfactory.
    [0092] The bottom 11 of the recovery tank 10 may further comprise a second inner face 28 that extends in the extension of the first inner face 27 following the longitudinal direction X, from the front discharge hole 23 towards the front end 19 of the recovery tank. 10 (figure 7). The second inner face 28 of the bottom 11 is inclined upward and forward from the first inner face 27. This allows the front corner of the recovery tank 10, which is formed between the bottom 11 and the
    [0095] front side wall 13 and thus prevent a right angle front corner from coming into contact with the ground S during an impact. Therefore, the risks of damage to the recovery tank 10 in case of impact on the ground S of the front corner are limited. The treatment liquid L recovered in the recovery tank 10, in the front part, at the level of the second inner face 28, is also directed towards the front drainage hole 23.
    [0096] Likewise, the bottom 11 of the recovery tank 10 may comprise a third inner face (not visible in the figures) that extends in the extension of the first inner face 27 following the longitudinal direction X, from the rear discharge hole 24 towards the end. rear 22 of the recovery tank 10. The third inner face of the bottom 11 is inclined up and back from the first inner face 27. This allows the rear corner of the recovery tank 10, which is formed between the bottom 11 and the side wall, to be chamfered. rear 15 and thus prevent a right angle rear corner from coming into contact with the ground S during an impact. Therefore, the risks of damage to the recovery tank 10 in the event of an impact on the ground S of the rear corner are limited. The treatment liquid L recovered in the recovery tank 10, at the rear, at the level of the third inner face, is also directed towards the rear drain hole 24.
    [0097] As a variant (figure 10), the bottom 11 of the recovery tank 10 can also comprise a fourth and a fifth inner face 281 that extend in the extension of the first inner face 27 following the longitudinal direction X respectively towards the front drain hole 23 and towards the rear drain hole 24. The fourth and fifth inner faces 281 of the bottom 11 are inclined downwards and respectively forwards and backwards from the first inner face 27. The fourth and fifth inner faces 281 of the bottom 11 make it possible to direct the treatment liquid L recovered in the recovery tank 10 to the level of the first face inside 27 respectively towards the front 23 and rear 24 evacuation hole.
    [0098] In this variant (figure 10), the bottom 11 of the recovery tank 10 can also comprise a sixth and a seventh globally horizontal inner faces 282 that respectively join the fourth inner face 281 to the second inner face 28 and the fifth inner face to the third. inner face. Furthermore, the sixth and seventh inner faces 282 are respectively arranged at the level of the front 23 and rear 24 evacuation holes.
    [0099] The recovery assembly 103 also comprises, for example, a pair of first filtering members 30, 31 each designed to filter, in a first filtering position, the treatment liquid L recovered in the recovery tank 10, when it is evacuated by one from the front 23 and rear 24 exhaust ports towards the tank 101 (Figures 2 to 4, 6 and 8).
    [0100] Figures 4 and 6 show in more detail an example of a first filtering member 30 that cooperates with the front discharge port 23 of the recovery tank 10. In Figure 4, the first filtering member 30 occupies the first filtering position. In Figure 6, the first filter member 30 is shown alone. Figure 5 further shows the front discharge opening 23 of the recovery tank 10 without the first filtering member 30. Figure 11 further shows another example of a first filtering member 30.
    [0101] The first filtering members 30, 31 thus make it possible, in the first filtering position, to retain solid bodies or substances, such as
    [0104] pieces of leaf or pieces of branches, which are contained in the treatment liquid L recovered in the recovery tank 10 and, therefore, prevent these bodies or these solid substances that form residues from clogging the return circuit 104.
    [0105] To do this, in the first filtering position, the first filtering members 30, 31 are arranged at least in part in the inner volume 17 of the recovery tank 10 and each one obstructs one of the front 23 and rear 24 drainage holes of the tank. recuperator 10 (figure 4).
    [0106] Each first filtering member 30, 31 may comprise a tubular body 32 that comprises, in turn, a side wall 33 that extends around an extension axis 34, as well as a tubular connection portion 35 that extends in the extension. of the body 32 following said extension axis 34, to a first end 36 of said first filtering member 30, 31 (Figures 6 and 11). In the first filtering position, the extension axis 34 of the first filtering member 30, 31 coincides with the axis 25, 26 of the front 23 or rear 24 discharge opening of the recovery tank 10 with which it cooperates.
    [0107] The body 32 and the connecting portion 35 of each first filter member 30, 31 together define a hole 37 oriented along the axis of extension 34 of the first filter member 30, 31 (Figures 6 and 11). The hole 37 passes through the body 32 and the splice portion 35 from part to part.
    [0108] The side wall 33 of the body 32 of each first filtering member 30 is further designed to filter, in the first filtering position, the treatment liquid L recovered in the recovery tank 10, when it passes through said side wall 33 from the volume inside 17 of recovery tank 10 towards
    [0111] hole 37.
    [0112] For this, the side wall 33 of the body 32 of each first filtering member 30, 31 comprises, for example, at least one porous wall portion 38, thus ensuring the filtering of the treatment liquid L in the first filtering position of the first filtering member 30, 31 (Figures 6 and 11). The porous wall portions 38 are distributed, for example, evenly around the extension axis 34 of the first filter member 30, 31. They can also be distributed evenly along the extension axis 34 of the first filter member 30, 31.
    [0113] The connection portion 35 of each first filtering member 30, 31 is designed, for its part, to, in the first filtering position, cooperate with the front 23 or rear 24 evacuation hole, to put the hole 37 in communication with the front 23 or rear 24 evacuation orifice and, thus, allow the evacuation of the treatment liquid L filtered through the side wall 33 of the body 32 of the first filter member 30, 31, in particular, through the or of the porous wall portions 38 towards the tank 101 (Figure 4).
    [0114] In this way, in the first filtering position, when the treatment liquid L recovered in the recovery tank 10 is evacuated through the front 23 or rear 24 discharge hole, it is first filtered through the side wall 33 of the body 32 of the first filtering member 30, 31, in particular, through the porous wall portion (s) 38, which passes from the inner volume 17 of the recovery tank 10 towards the hole 37, to the front 23 or rear drainage hole 24 where it is evacuated to tank 101 through return circuit 104.
    [0115] For example, the splice portion 35 of each first filter member
    [0118] 30, 31 cooperates, in the first filtering position, with the front drain hole 23 or rear 24 by means of an drain connection (not shown) of the return circuit 104, which extends at least partially into the drain hole. front 23 or rear 24 evacuation. Thus, when the connection portion 35 cooperates with the evacuation connection, the hole 37 is in communication with the return circuit 104 to evacuate the treatment liquid L filtered through the side wall 33 of the body 32 of the first filter member 30, 31 towards the tank 101.
    [0119] For this, the connection portion 35 of each filter member 30, 31 is, for example, threaded and designed to cooperate with a corresponding threading of the evacuation connection. This is, for example, the case of the first filter member 30 of FIG. 6.
    [0120] As a variant, the connection portion 35 of each filter member 30, 31 is threaded and designed to cooperate with a corresponding threading of the evacuation connection. This is, for example, the case of the first filter member 30 of FIG. 11.
    [0121] Each first filter member 30, 31 may also comprise a head 39 that recloses the hole 37 defined by the body 32 and the connection portion 35 of said first filter member 30, at a second end 40 of the filter member 30 , 31 following the extension axis 34 (figures 6 and 11).
    [0122] The body 32, the connecting portion 35 and the head 39 of each first filter member 30, 31 are, for example, formed in one piece.
    [0123] Each first filtering member 30, 31 is suitable, for example, to be mounted in the first filtering position and to be removed from said first filtering position from outside the recovery tank 10. The assembly and the disassembly of the first filter member 30, 31 is carried out, in particular, manually, without tools. In this way, the first filter elements 30, 31 can be assembled and disassembled without the farmer having to insert his hands into the interior volume 17 of the recovery tank 10.
    [0124] To this end, the first side wall 14 of the recovery tank 10, in the present document, the left side wall, may comprise a pair of first mounting holes 41 that pass through said first side wall 14 from part to part and that they are each coaxial with one of the front 23 and rear 24 drainage holes arranged, in turn, in the second side wall 16 of the recovery tank 10, in the present document, the right side wall (figure 5).
    [0125] The body 32 and the connecting portion 35 of each first filter member 30, 31 are further designed to:
    [0126] - on the one hand, entering one of the first mounting holes 41 from the outside of the recovery tank 10 towards the inner volume 17 of said recovery tank 10 and sliding into said first mounting hole 41 to the first filtering position in which the body 32 is arranged in the inner volume 17, the connection portion 35 cooperates with the front drain hole 23 or rear 24 coaxial with the first mounting hole 41 and the head 39 of the first filter member 30, 31 obstructs the first mounting hole 41 and
    [0127] - on the other hand, sliding into the first mounting hole 41 from the first filtering position and pulling out of the first mounting hole 41 from the inner volume 17 of the recovery tank 10 towards the outside of said tank recuperator 10.
    [0128] In this way, not only can the first filtering organs 30, 31 be assembled and disassembled without requiring the farmer to insert his hands into the interior volume 17 of the recovery tank 10, but they also make it possible to purge the recovery tank 10 through mounting holes 41.
    [0129] The recovery tank 10 may further comprise a pair of grooves 43 drilled in the bottom 11 and each extending transversely between one of the front 23 and rear 24 evacuation holes and the first mounting hole 41 which is coaxial with said front 23 or rear 24 evacuation hole. The first filter members 30, 31 are furthermore each designed to slide along one of the grooves 43 from and towards the first filter position (Figures 5 and 7).
    [0130] In the first filtering position, the head 39 of the first filtering members 30, 31, for example, is supported, in particular by means of a seal 431 (Figures 6 and 11), around the first mounting hole 41 which obstructs , against an outer surface 44 of the first side wall 14. In the first filtering position, the head 39 of the first filtering members 30, 31 thus obstructs the mounting hole 41 from outside the tank recuperator 10 (figure 4).
    [0131] The head 39 of each first filter member 30, 31 may be further provided with a gripping projection 45 extending from an outer face 46 of the head 39 which is arranged perpendicular to the extension axis 34 of the filter member. 30, 31 and which is opposite the body 32 of said first filtering member 30, 31, following said extension axis 34
    [0134] (Figures 4, 6 and 11). The gripping projection 45 thus facilitates the assembly and disassembly of the first filter member 30, 31.
    [0135] In the first filtering position, the head 39 of each first filtering member 30, 31 can furthermore be housed in a recess 47 formed around each of the first mounting holes 41 in the outer surface 44 of the first side wall. side 14, to limit the projection of the head 39 towards the outside of the recovery tank 10. This makes it possible to avoid the risk of the first filtering members 30, 31 being torn off and, therefore, of untimely purging of the recovery tank 10 .
    [0136] Of course, a first filtering member 30, 31, as described above, can also be implemented in any recovery tank that comprises at least one drainage hole. Also, the description above referring to the first filter members 30, 31 and the recovery tank 10 according to the invention applies mutatis mutandis to such a recovery tank provided with at least one discharge orifice.
    [0137] The recovery unit 103 can also comprise a second filtering member 48 designed to filter, in a second filtering position, the excess sprayed treatment liquid L that penetrates into the interior volume 17 of the recovery tank 10, through its opening 12, before to reach the bottom 11 of the same (figures 4, 5 and 7).
    [0138] The second filtering member 48 thus makes it possible, in the second filtering position, to retain solid bodies or substances, such as pieces of leaf or pieces of branches, which are contained in the excess of pulverized treatment liquid L and, therefore Therefore, prevent these bodies or these solid substances that form residues from accumulating at the bottom 11 of the recovery tank 10.
    [0139] To do this, in the second filtering position, the second filtering member 48 is generally horizontally oriented and is arranged above the bottom 11 and below or at the opening 12 of the recovery tank 10. The second filtering member 48 it is also located above the front 23 and rear 24 drain holes. In this way, the second filter member 48 obstructs or even blocks access to the bottom 11 and to the front 23 and rear drain holes 24 from the opening 12 from recovery tank 10.
    [0140] The second filtering member 48 comprises, for example, a body 49 which extends globally longitudinally in the second filtering position and which in turn comprises a porous body portion 50.
    [0141] The porous body portion 50 of the second filtering member 48 is, for example, globally flat, arranged horizontally or inclined with respect to the horizontal and interposed between the bottom 11 and the opening 12 of the recovery tank 10 in the second filtering position ( Figures 4 and 5). The porous body portion 50 thus ensures filtering of the treatment liquid L in the second filtering position of the second filtering member 48.
    [0142] In the second filtering position, the body 49 of the second filtering member 48 or a globally flat upper surface of said body 49, formed at least in part by the porous body portion 50, is, for example, horizontal (Figures 4 and 5).
    [0143] As a variant (not shown), in the second filtering position, the body 49 of the second filtering member 48 or the globally flat upper surface of said body 49 formed at least in part by the body portion
    [0146] porous 50, is sloped downward relative to the horizontal from the second side wall 16, here the right side wall, towards the first side wall 14, here the left side wall. In this way, the debris collected by the second filter member 48 accumulates on the side of the first side wall 14 side. The second filter member 48 or its upper surface may furthermore be inclined to an upper edge of the first side wall 14, to allow self-evacuation of the waste collected by the second filtering member 48.
    [0147] The second filtering member 48 can also be supported, in the second filtering position, by two rails 51 of the recovery tank 10 arranged in parallel following the longitudinal direction X in the interior volume 17 of said recovery tank 10 (Figures 4, 5 and 7 to 9).
    [0148] The rails 51 of the recovery tank 10 extend, for example, each from the bottom 11 of the recovery tank 10 upwards and from one of the first and second side walls 14, 16 towards the other of the first and second walls lateral sides 14, 16. The rails 51 can extend, in particular, from the bottom 11 of the recovery tank 10 upwards until they exceed the front 23 and rear 24 evacuation holes. The rails 51 thus make it possible in the second filtering position, keeping the second filtering member 48 at a distance from the bottom 11 of the recovery tank 10 and, if necessary, above the front 23 and rear 24 discharge openings.
    [0149] The second filter member 48 is suitable, for example, to be mounted in the second filter position and to be removed from said
    [0152] second filtering position from outside the recovery tank 10. The assembly and disassembly of the second filtering member 48 is operated, in particular, manually, without tools. In this way, the second filter member 48 can be assembled and disassembled without the farmer having to insert his hands into the interior volume 17 of the recovery tank 10.
    [0153] To this end, one of the front 13 and rear 15 side walls may comprise a second mounting hole 53 extending around a longitudinally oriented axis 54 and passing through said front 13 or rear 15 side wall (Figures 7 to 9).
    [0154] The second filtering member 48 also forms a drawer designed to: - on the one hand, insert into the mounting hole 53 from the outside of the recovery tank 10 towards the interior volume 17 of said recovery tank 10 until occupying the second position of filtered, in particular, sliding on the rails 51 of the recovery tank 10 and
    [0155] - on the other hand, being extracted from the second mounting hole 53 from the inner volume 17 of the recovery tank 10 towards the outside of said recovery tank 10, in particular, after having slid on the rails 51 of the recovery tank 10.
    [0156] The second filter member 48 may also comprise a closure member 55 designed to obstruct, in the second filter position, the second mounting hole 53.
    [0157] To this end, the closing member 55 of the second filtering member 48 comprises, for example, a first interior face 56, globally flat, from which the body 49 of the second filtering member 48 extends. The first The inner face 56 is further oriented perpendicular to the axis 54 of the second mounting hole 53 and abuts, around the second mounting hole 53, against an outer surface 57 of the front 13 or rear 15 side wall in which the second mounting hole 53, while the body 49 of the second filter member 48 extends through the second mounting hole 53, when the second filter member 48 occupies the second filter position (Figures 7 and 9).
    [0158] The closing member 55 of the second filtering member 48 is formed, for example, by a pair of parallel plates 571,572 between which a sealing member 573, in particular a gasket, is interposed or also enclosed (Figures 4, 5, 9 and 10). The first inner face 56 of the closing member 55 is then formed in one 571 of the two plates, called the inner plate, and the body 49 of the second filtering member 48 extends from said inner plate 571. This makes it possible to avoid leaks of treatment liquid L recovered in the recovery tank 10 mediates through the second mounting hole 53.
    [0159] The two plates 571, 572 and the sealing member 573 of the closing member 55 are mounted, for example, integral with each other by means of a bolt assembly 574 (Figures 4, 5 and 10).
    [0160] The body 49 and the closure member 55 of the second filter member 48, in particular the inner plate 571 of said closure member 55, are formed, for example, in one piece.
    [0161] The closing member 55 of the second filtering member 48 also comprises, for example, a locking mechanism 60 designed to lock the second filtering member 48 with respect to the recovery tank 10 in the second filtering position (Figures 9 and 10). For this, the mechanism of
    [0164] interlocking 60 comprises, for example, a cam 61 arranged on the side of the first inner face 56 of the closing member 55 following the longitudinal direction X and pivotally mounted about a pivot axis 62 generally oriented longitudinally, when the second member Filter 48 occupies the second filter position. Cam 61 of locking mechanism 60 is further designed to pivot about pivot axis 62 between a locked position and an unlocked position.
    [0165] When the second filter member 48 occupies the second filter position and the cam 61 of the locking mechanism 60 occupies the locking position (Figure 10), the cam 61 is arranged, in the interior volume 17 of the recovery tank 10, facing or abutting against the front 13 or rear 15 side wall in which the second mounting hole 53 is formed. The cam 61 thus forms a stop that blocks the second filtering member 48 from displacement with respect to the recovery tank 10 following the longitudinal direction X towards the outside of the recovery tank 10.
    [0166] Furthermore, a projection 611 may be formed in the inner volume 17 of the recovery tank 10, from the front 13 or rear 15 side wall, in order to cooperate with the cam 61 of the locking mechanism 60, when the second filtering member 48 it occupies the second filtering position and the cam 61 is in the locking position (Figures 9 and 10).
    [0167] When the second filtering member 48 occupies the second filtering position and the cam 61 of the locking mechanism 60 occupies the unlocking position (Figure 9), the cam 61 is arranged facing the first inner face 56 of the closing member 55, releasing the front side wall 13 or
    [0170] rear 15 in which the second mounting hole 53 or the projection 611 is formed. In this way, the second filtering member 48 can move freely with respect to the recovery tank 10, in particular, following the longitudinal direction X, towards the outside of the recovery tank 10, to open the second mounting hole 53.
    [0171] The locking mechanism 60 may comprise an actuation button 63 designed to actuate the cam 61 by pivoting between its locking and unlocking positions (Figures 4, 5 and 9). The actuating button 63 of the locking mechanism 60 is furthermore arranged on a side opposite the first inner face 56 of the closing member 55 and the body 49 of the second filtering member 48 following the longitudinal direction X, in the second position filtering. The actuation button 63 is arranged, in particular, facing the other 572 of the plates 571, 572 of the closing member 55 of the second filtering member 48, called the outer plate. The actuation button 63 is thus arranged outside the recovery tank 10, when the second filtering member 48 occupies the second filtering position. This makes it possible to actuate the cam 61 and, therefore, to lock / unlock the second filter member 48 with respect to the recovery tank 10 from outside the recovery tank 10.
    [0172] Of course, a second filter member 48, as described above, can also be implemented in any recovery tank that comprises at least one drainage hole. Also, the above description referring to the second filtering member 48 and the recovery tank 10 according to the invention applies mutatis mutandis to such a recovery tank provided with at least one drainage hole.
    [0173] It is also possible to provide a grid (not shown) globally horizontal or inclined with respect to the horizontal through the opening 12 of the recovery tank 10, in order to avoid shaking the treatment liquid L recovered in the recovery tank 10, in particularly, in case of acceleration and deceleration of the agricultural spraying system 100 and, therefore, limit the risks of splashing.
    [0174] One or more crossbars can also be provided in the inner volume 17 of the recovery tank 10, in order to avoid waves of treatment liquid L recovered in the recovery tank 10, in particular, in the event of acceleration and deceleration of the recovery system. agricultural spraying 100.
    [0175] The recovery unit 103 can also comprise a recovery panel 65 designed to capture or also to collect the excess treatment liquid L sprayed on the plants to be treated by the one or one of the spraying devices 102 (Figures 2 and 3).
    [0176] For this, the recovery panel 65 comprises, for example, a face 66, arranged globally perpendicular to the transverse direction Y, facing and at a distance from the one or one of the spraying devices 102. In this way, when the device spray 102 sprays treatment liquid L on the plants to be treated, which are interposed between the spraying device 102 and the face 66 of the recovery panel 65, the excess of treatment liquid L sprayed, that is, it is not absorbed by the plants to be treated, it passes through them until it is picked up by the face 66 of the recovery panel 65, in particular, in the form of droplets.
    [0177] The recovery panel 65 is further aligned vertically above the opening 12 of the recovery tank 10, so that the liquid droplets
    [0180] of treatment L captured by the recovery panel 65 flow by gravity to the recovery tank 10.
    [0181] The recovery panel 65 and the recovery tank 10 are formed, for example, in one piece. In other words, the recovery panel 65 and the recovery tank 10 are integral with each other or are also one-piece. For example, they are made from a plastic material, in particular by thermoforming or molding. Of course, other plastics forming techniques can be implemented. The plastics material can also be reinforced, in particular, with fibers.
    [0182] An inner surface 67 of the second side wall 16 of the recovery tank 10, here the right side wall, which faces facing the inner volume 17 of the recovery tank 10, may then extend into the extension of the face 66 of the recovery panel 65 following the vertical direction Z.
    [0183] The recovery panel 65 and the recovery tank 10 can form, in particular, a hollow box comprising, for example, at an upper end of the recovery panel 65, an air intake opening 68 intended to be connected to a supply circuit of air (not shown).
    [0184] The recovery tank 10 comprises, for example, a plurality of air ejection holes 69 arranged below the bottom 11 of said recovery tank 10. The air ejection holes 69 are also supplied with air through the intake opening of air 68 and the hollow box formed by the recovery panel 65 and the recovery tank 10. The air ejection holes 69 thus make it possible to form an air curtain that protects the floor S from the excess of sprayed treatment liquid L.
    [0187] The air ejection ports 69 may further be aligned along the longitudinal direction X.
    [0188] As a variant (not shown), the recovery tank 10 is incorporated or also fixed on a lower end 70 of the recovery panel 65.
    [0189] The recuperator panel 65 may also be provided with a plurality of fins 71, substantially vertical and parallel to each other, which extend globally transversely from the face 66 of the recuperator panel 65, in particular, in the direction of the spraying device 102 facing the Which is situated. The fins 71 thus guide the droplets of treatment liquid L collected by the recovery panel 65 towards the recovery tank 10. The fins 71 have, for example, a section, taken in a horizontal plane, in the shape of a V, the tip of which is oriented transversely in a direction opposite to the face 66 of the recovery panel 65.
    [0190] The fins 71 are incorporated, for example, or also fixed on the face 66 of the recuperator panel 65. As a variant, the fins 71 are formed in a single piece or are also integral with said face 66 of the recuperator panel 65.
    [0191] The recuperator panel 65 also comprises, for example, a plurality of spray nozzles 72 carried by the face 66 of the recuperator panel 65 and designed to spray treatment liquid L onto the plants to be treated in the field, thus forming the panel recuperator 65, in turn, a spraying device.
    [0192] The spray nozzles 72 are incorporated, for example, or also fixed on the face 66 of the recuperator panel 65.
    [0193] The recovery panel 65 can also comprise an air diffuser 721 supplied with air through the air intake opening 68 and the hollow box formed by the recovery panel 65 and the recovery tank 10. The air diffuser 721 is also designed to blowing air in the direction of the treatment liquid L sprayed by the spray nozzles 72 and the plants to be treated to bring the treatment liquid L sprayed by the spray nozzles 72 towards said plants to be treated. The air diffuser 721 is located, for example, in the center of the recuperator panel 65 following the longitudinal direction. This central positioning of the air diffuser 721 has a particular effect in terms of guiding the treatment liquid L to be sprayed on the plants to be treated, the recovery panel 65 then also acting as a confinement panel. In other words, the led jet obtained by the combination of the diffused air and the treatment liquid L is optimal, in terms of treatment of the plants, when the air diffuser 721 is located in the center of the recuperator panel 65 following the direction longitudinal X. This positioning is not limiting and any positioning of said air diffuser 721 along the longitudinal direction X will be included in the invention.
    [0194] The air diffuser 721 is incorporated, for example, or also fixed on the face 66 of the recovery panel 65. As a variant, the air diffuser 721 is formed in one piece or is also integral with said face 66.
    [0195] As a variant (not shown), an air diffuser can be integrated in each spray nozzle, said nozzles being then designed to spray a mixture of treatment liquid L and air on the plants to be treated.
    [0198] The return circuit 104 comprises, for example, a suction mechanism 105 designed to suck, through the front 23 and rear 24 evacuation holes of the recovery tank 10, the treatment liquid L recovered by said recovery tank 10 and to discharge it. towards tank 101 (figure 1).
    [0199] The suction mechanism 105 is designed, for example, to suck the treatment liquid L recovered by the recovery tank 10 by Venturi effect.
    [0200] For this, the suction mechanism 105 comprises, for example, at least one pair of Venturi effect devices (not shown) each comprising a suction orifice that communicates with one of the front 23 or rear 24 evacuation orifices. through a suction line 106, a discharge hole that communicates with the tank 101 through a discharge line 107 and a feed hole that communicates with the tank 101 through a feed circuit 108. Said of otherwise, each of the front 23 and rear 24 discharge ports of the recovery tank 10 communicates with a different Venturi effect device from the pair of Venturi effect devices.
    [0201] Each Venturi effect device is further designed to create a depression at the level of the suction hole, when treatment liquid L flows through said Venturi effect device from the feed hole to the discharge hole, to cause a suction. of the treatment liquid L recovered in the recovery tank 10 from the front 23 or rear 24 discharge port to the discharge port. Each Venturi effect device has, in particular, a portion of tube converging from the orifice feed towards a tapered portion in which the suction port is formed and a divergent portion from the tapered portion towards the discharge port.
    [0202] The suction mechanism 105 comprises, for example, a pair of Venturi effect devices per recovery assembly 103 comprising a recovery tank 10 provided with a pair of front 23 and rear 24 discharge holes.
    [0203] The suction mechanism 105 thus makes it possible to ensure, at any time, a minimum amount of treatment liquid L in the recovery tank 10, which facilitates interventions on the recovery tank 10 in the event of a breakdown, particularly in the event of plugging of the front 23 and / or rear 24 evacuation holes.
    [0204] As a variant, the suction mechanism 105 comprises a common Venturi effect device that communicates with the pair of front 23 and rear 24 exhaust ports. Then, a non-return flap can be interposed between each of the front exhaust ports 23 and rear 24 and the Venturi effect device, in order to avoid a non-priming of the Venturi effect device, when one of the front 23 or rear 24 evacuation holes sucks treatment liquid L recovered in the recovery tank 10 more than the other until sucking air and preventing the other rear 24 or front 23 evacuation orifice from sucking in more treatment liquid L. This makes it possible to reduce, in this way, the number of Venturi effect devices.
    [0205] When the recovery tank 10 comprises one or more evacuation holes, in addition to the pair of front 23 and rear 24 drain holes, these can each communicate with a different Venturi effect device or all communicate with a common Venturi effect device that communicates, in turn, with the pair of front 23 and rear 24 exhaust ports. Otherwise, these exhaust ports and the front 23 and rear 24 exhaust ports they can be distributed, in the same way or not, over several Venturi effect devices. When several evacuation ports, including the front 23 and rear 24 evacuation ports, communicate with the same Venturi effect device, a non-return flap may be interposed between each of the evacuation ports and said Venturi effect device, with the In order to avoid its not priming.
    [0206] Also as a variant (not shown), the suction mechanism 105 comprises at least one pump that comprises, in turn, a suction orifice that communicates with one or each of the front 23 and rear 24 evacuation orifices through a suction line and a discharge port that communicates with the tank 101 via a discharge line. The pump (s) can be membrane piston, centrifugal, peristaltic, etc.
    [0207] The recovery tank 10 comprises, for example, an inclinometer (not shown) designed to measure an inclination of the recovery tank 10 with respect to the direction of the force of gravity and to transmit the inclination thus measured to a control unit 109 designed to control, as a function of said measured inclination, an opening / closing of solenoid valves (not shown) that equip each of the suction pipes of the front 23 and rear 24 evacuation ports.
    [0208] In this way, when the recovery tank 10 is inclined backwards and downwards, the solenoid valve that equips the suction line of the front discharge port 23 is closed, for example, while the
    [0211] The solenoid valve that equips the suction line of the rear exhaust port 24 is open. On the contrary, when the recovery tank 10 is inclined forward and downwards, the solenoid valve that equips the suction line of the rear exhaust port 24 is closed, for example, and the solenoid valve that equips the suction line of the front exhaust port 23 is open.
    [0212] As a variant (not shown), the recovery tank 10 comprises a level sensor designed to measure a height of the treatment liquid L in the recovery tank 10 at the level of each of the front 23 and rear 24 evacuation holes and to transmit the heights measured in this way to the control unit 109 designed to control, as a function of said measured heights, an opening / closing of solenoid valves that equip each of the suction pipes of the front 23 and rear 24 exhaust ports. control unit 109 controls, for example, the opening of a solenoid valve when the height measured at the level of the front 23 or rear 24 exhaust port with which it communicates is greater than a predetermined threshold height.
    [0213] The feed circuit 108 comprises, for example, a feed pump 110, in particular, driven by a motor 111, designed to suck the treatment liquid L contained in the tank 101 and to discharge it towards the suction mechanism 105 (figure 1) .
    [0214] The Venturi effect devices of the suction mechanism 105 make it possible, in particular, to implement a single feed pump 110, without requiring a resizing of said feed pump 110 as a function of the number of recuperator sets is 103 and, therefore, the number of Venturi effect devices. This represents an energy saving.
    [0215] The feed pump 110 can also be designed to discharge the suctioned treatment liquid L towards one or towards the spraying devices 102, the feed circuit 108, downstream of the feed pump 110, dividing into a first and a second conduit. 112, 113 which route the treatment liquid L discharged by the feed pump 110 respectively towards the suction mechanism 105 and towards the spraying devices 102 (figure 1).
    [0216] In the rest of the description, the terms "upstream" and "downstream" take into account the direction of circulation of the treatment liquid L in the agricultural spray system 100.
    [0217] The first line 112 comprises, for example, a pressure limiter 114 arranged upstream of the suction mechanism 105 and designed to divert all or part of the treatment liquid L from the feed pump 110 upstream from the feed pump 110 , when a pressure of the treatment liquid L downstream of the pressure limiter 114 is greater than a predetermined threshold pressure (Figure 1). Treatment liquid L that is not bypassed by pressure limiter 114 is directed towards suction mechanism 105.
    [0218] Furthermore, a pressure sensor 115 may be provided downstream of the pressure limiter 114 and upstream of the suction mechanism 105 (Figure 1). The pressure sensor 115 is designed, for example, to measure the pressure of the treatment liquid L flowing downstream of the pressure limiter 114 and upstream of the suction mechanism 105 and to transmit the pressure thus measured to the pressure unit. control 109 which is designed to control, in As a function of said measured pressure, the pressure limiter 114 of the first line 112.
    [0219] The second line 113 comprises, for example, a pressure limiter 116 arranged upstream of the spraying device (s) 102 and designed to divert all or part of the treatment liquid L from the feed pump 110 upstream of the pump. feed 110, when a pressure of the treatment liquid L downstream of the pressure limiter 116 is higher than a predetermined threshold pressure (FIG. 1). The treatment liquid L that is not bypassed by the pressure limiter 116 feeds the spray device (s) 102.
    [0220] Furthermore, a pressure sensor 117 may be provided downstream of the pressure limiter 116 and upstream of the spray device (s) 102 (FIG. 1). The pressure sensor 117 is designed, for example, to measure the pressure of the treatment liquid L flowing downstream of the pressure limiter 116 and upstream of the spray device (s) 102 and to transmit the pressure thus measured to the control unit 109 which is designed to control, as a function of said measured pressure, the pressure limiter 116 of the second line 113.
    [0221] The spray system 100 can also comprise one or more filters 118, 119, 120 arranged:
    [0222] - downstream from tank 101 and upstream from feed pump 110 in feed circuit 108 (figure 1),
    [0223] downstream of the feed pump 110, in particular, downstream of the pressure limiter 114 or even of the pressure sensor 115 and upstream of the spray device (s) 102 in the second conduit 113 of the
    [0226] power circuit 108 (figure 1),
    [0227] - downstream of the suction mechanism 105 and upstream of the tank 101 in the return circuit 104 (figure 1).
    [0228] The recovery tank 10 described above is particularly advantageous, since it makes it possible to avoid overflows of the treatment liquid L regardless of the slope of the floor S.
    权利要求:
    Claims (10)
    [1]
    1. Recovery tank (10) for recovery unit (103) of an agricultural spraying system (100) comprising a tank (101), intended to contain a treatment liquid (L), and at least one spraying device (102 ) intended to spray treatment liquid (L) from the tank (101) on the plants to be treated in a field, the recovery tank (10) comprising:
    - a bottom (11) that closes the recovery tank (10) downwards,
    - an opening (12) opposite the bottom (11) following a vertical direction (Z) and by means of which the recovery tank (10) is intended to recover the excess treatment liquid (L) sprayed by the one or one of the spraying devices (102) on the plants to be treated and
    - at least one side wall (13, 14, 15, 16) extending from the bottom (11) upwards towards the opening (12) and defining with the bottom (11) an interior volume (17) of the recovery tank (10),
    the recovery tank (10) being characterized in that it comprises a pair of evacuation holes (23, 24) of the treatment liquid (L) recovered in the recovery tank (10), each of the evacuation holes (23, 24) communicating ), on the one hand, with the internal volume (17) of the recovery tank (10) and being intended to communicate, on the other hand, with the tank (101) through a return circuit (104) of the agricultural spraying system (100), the evacuation holes (23, 24) being separated from each other following a horizontal longitudinal direction (X) oriented from back to front in the direction of advance of the agricultural spraying system (100).
    [2]
    Recovery tank (10) according to claim 1, successively comprising, following the longitudinal direction (X), a front end portion (18) in which a front end (19) of the recovery tank (10) is formed, a median portion (20) and a rear end portion (21) in which a rear end (22) of the recovery tank (10) is formed, furthermore one (23) of the discharge holes (23, 24) being ) formed in the front end portion (18) of the recovery tank (10), the other (24) of the discharge holes (23, 24) being formed in the rear end portion (21) of the recovery tank (10) .
    [3]
    Recovery tank (10) according to claim 2, in which:
    - the median portion (20) represents at least 50 % of the length of the recovery tank (10), preferably at least 70% of the length of the recovery tank (10),
    me
    - each of the evacuation holes (23, 24) is longitudinally closer to one of the front (19) or rear (22) ends than to the other evacuation hole (24, 23).
    [4]
    Recovery tank (10) according to one of claims 1 to 3, in which:
    - some axes (25, 26) around which each of the evacuation holes (23, 24) extend are comprised in the same globally horizontal plane (P1),
    4
    me
    - the bottom (11) comprises a first globally horizontal inner face (27), which extends between the evacuation holes (23, 24) following the longitudinal direction (X).
    [5]
    5. Recovery unit (103) for an agricultural spraying system (100) comprising a tank (101) designed to contain a treatment liquid and at least one spraying device (102) designed to spray the treatment liquid from the tank ( 101) on the plants to be treated in a field, the recovery unit (103) comprising a recovery tank (10) according to one of claims 1 to 4.
    [6]
    Recovery assembly (103) according to claim 5, further comprising a pair of first filtering members (30, 31) each designed to filter, in a first filtering position, the recovered treatment liquid (L) in the recovery tank (10), when it is evacuated through the evacuation holes (23, 24), each first filtering member (30, 31) being suitable to be mounted in a first filtering position and to be disassembled from said first filtering position from outside the recovery tank (10).
    [7]
    Recovery unit (103) according to claim 5 or claim 6, further comprising a second filtering member (48) designed to filter, in a second filtering position, the excess sprayed treatment liquid (L) that penetrates into the interior volume (17) of the recovery tank (10), through its opening (12), before reaching the bottom (11), the second being filtering member (48) suitable to be mounted in a second filtering position and to be disassembled from said second filtering position from outside the recovery tank (10).
    [8]
    8. Agricultural spraying system (100) comprising:
    - a tank (101) designed to contain a treatment liquid,
    - at least one spraying device (102) designed to spray the treatment liquid from the tank (101) onto the plants to be treated in a field,
    - at least one recovery unit (103) according to one of claims 5 to 7 and
    - a return circuit (104) that communicates, on the one hand, with the evacuation orifices (23, 24) of the recovery tank (10) and, on the other hand, with the tank (101).
    [9]
    Agricultural spraying system (100) according to claim 8, in which the return circuit (104) comprises a suction mechanism (105) designed to suck, by Venturi effect, the treatment liquid (L) recovered by said recovery tank (10) through the evacuation holes (23, 24) of the recovery tank (10) and to discharge it to the tank (101).
    [10]
    A spraying system (100) according to claim 9, in which the suction mechanism (105) comprises at least one pair of Venturi effect devices, each comprising a suction orifice that is communicates with one of the evacuation orifices (23, 24) through a suction conduit (106), a discharge port that communicates with the tank (101) through a discharge conduit (107) and an orifice of feeding that communicates with the tank (101) through a feeding circuit (108), being each device of Venturi effect designed, in addition, to create a depression at the level of the suction orifice, when the treatment liquid (L ) through said Venturi effect device from the feed orifice towards the discharge orifice, to cause a suction of the treatment liquid (L) recovered in the recovery tank (10) from the evacuation orifice (23, 24) towards the discharge hole.
    4
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    同族专利:
    公开号 | 公开日
    CN112547378A|2021-03-26|
    ES2841777R1|2021-09-01|
    FR3100956A1|2021-03-26|
    FR3100956B1|2021-09-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2598941B1|1986-05-22|1988-09-09|Dagnaud Motoculture Service Sa|AEROSOLS RECOVERY DEVICE|
    EP0549058A1|1991-12-20|1993-06-30|Mathijs René Marie Jozef Van den Munckhof|Tunnel-like spray device|
    NL9201297A|1992-07-20|1994-02-16|Munckhof J M Maschf|Tunnel-shaped spraying vehicle.|
    US5662267A|1995-06-07|1997-09-02|Dauenhauer Manufacturing, Inc.|Controlled atmosphere transfer system|
    ITPD20110296A1|2011-09-20|2013-03-21|Ideal Srl|SPRAYING DEVICE FOR PHYTOSANITARY FLUID|
    FR3078862B1|2018-03-16|2021-07-16|Exel Ind|COLLECTOR FOR SPRAYING DEVICE INCLUDING AN EXTRACTOR|
    法律状态:
    2021-07-09| BA2A| Patent application published|Ref document number: 2841777 Country of ref document: ES Kind code of ref document: A2 Effective date: 20210709 |
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    优先权:
    申请号 | 申请日 | 专利标题
    FR1910582A|FR3100956B1|2019-09-25|2019-09-25|RECOVERY BIN FOR RECOVERY ASSEMBLY OF AN AGRICULTURAL SPRAYING SYSTEM INCLUDING TWO DISCHARGE OPENINGS|
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