• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A manual balancing valve for a hydraulic circuit is provided with a valve body (2) and with a mobile actuator (3). The valve body (2) comprises a transit channel (6) extending along a first longitudinal axis (A), a housing seat (7) arranged along the transit channel (6) and a main access (8a) for accessing to the transit channel (6), which is arranged in the area of the housing seat (7); the valve body (2) being configured so that, in use, the fluid flows in the transit channel (6) and in the housing seat (7) substantially along an axial direction, without significant flow deflections. The mobile actuator (3) comprises a stem (9) inserted in the main access (8a); a handle (10) coupled to the stem (9); and a shutter element (11) coupled to the stem (9); the rotation of the handle (10) in a first direction causes an advancing movement of the shutter element (11) in the housing seat (7) and the rotation of the handle (10) in a direction opposite to the first one causes a back movement of the shutter element (11) in the housing seat (7).
    公开号:DK201970386A8
    申请号:DKP201970386
    申请日:2019-06-20
    公开日:2021-11-29
    发明作者:Tanghetti Ermanno；Sala Alberto
    申请人:Effebi Spa；
    IPC主号:
    专利说明:

    . DK 2019 70386 A8 “BALANCING VALVE FOR A HYDRAULIC AND/OR HYDRO-THERMO- SANITARY PLANT AND HYDRAULIC AND/OR HYDRO-THERMO-SANITARY PLANT COMPRISING SAID BALANCING VALVE” CROSS-REFERENCE TO RELATED APPLICATIONS This patent application claims priority from Italian patent application no. 102018000006596 filed on June 22, 2018, the entire disclosure of which is incorporated herein by reference.
    TECHNICAL FIELD The invention relates to a balancing valve for a hydraulic and/or hydro-thermo-sanitary plant and to a hydraulic and/or hydro-thermo-sanitary plant comprising said valve.
    PRIOR ART Balancing valves are hydraulic devices allowing the flow rate of a fluid to be precisely adjusted. These valves are usually used to adjust, with precision, the flow rate of a heat transfer fluid in a thermal or hydro-thermal-sanitary plant.
    Indeed, the correct balancing of the flow rates to be fed to the terminals of a thermal plant is indispensable in order to ensure a high thermal comfort and, at the same time, reduced energy consumptions.
    However, currently used balancing valves are not
    , DK 2019 70386 A8 capable of ensuring a precise and long-lasting adjustment with reduced manufacturing costs.
    SUBJECT-MATTER OF THE INVENTION An object of the invention is to provide a balancing valve, which is not affected by the aforementioned drawbacks of the prior art; in particular, an object of the invention is to provide a balancing valve, which overcomes the aforesaid drawbacks in a simple and economic fashion, both from the functional point of view and from the constructive point of view. In accordance with these objects, the invention relates to a balancing valve according to claim 1. The balancing valve according to the invention is a reliable valve, wherein load losses are limited, as well as easy and economic to be manufactured. A further object of the invention is to provide a reliable hydraulic plant. In accordance with these objects, the invention relates to a hydraulic and/or hydro-thermo-sanitary plant according to claim 28.
    BRIEF DESCRIPTION OF THE DRAWINGS Further features and advantages of the invention will be best understood upon perusal of the following description of a non-limiting embodiment thereof, with reference to the accompanying drawing, wherein:
    2 DK 2019 70386 A8 — figure 1 is a schematic, perspective, cross-sectional representation of the valve according to the invention in a first operating position; — figure 2 is a schematic, cross-sectional representation of the valve of figure 1 in a second operating position; — figure 3 is a schematic, cross-sectional representation of the valve of figure 1 in a third operating position, — figure 4 is a schematic, cross-sectional representation of the valve of figure 1 in a fourth operating position; — figure 5 is a schematic, cross-sectional representation of the valve of figure 3 in the third operating position in accordance with a first variant; — figure 6 is a schematic, cross-sectional representation of the valve of figure 4 in the fourth operating position in accordance with a first variant, — figure 7 is a schematic, cross-sectional representation of the valve of figure 3 in the third operating position in accordance with a second variant; — figure 8 is a schematic, cross-sectional representation of the valve of figure 4 in the fourth operating position in accordance with a second variant.
    PREFERRED EMBODIMENT OF THE INVENTION In figure 1, number 1 indicates a balancing valve for a hydraulic plant (which is not shown), preferably for a hydraulic-thermal plant where a heat transfer fluid flows.
    , DK 2019 70386 A8 The valve 1 comprises a valve body 2, a mobile actuator 3 and a safety device 4. The valve body 2 is provided with a fluid transit channel 6 and with a housing seat 7 arranged along the transit channel 6. The transit channel 6 extends along a longitudinal axis A.
    In use, the fluid flows in the transit channel 6 and in the housing seat 7 substantially along an axial direction, without significant flow deflections.
    In other words, the transit channel 6 does not have flow deflector means determining an intentional deflection of the flow in a direction that is different from the axial direction.
    In the area of the housing seat 7, the valve body 2 is provided with a substantially cylindrical main access 8a, which extends along an axis B, which is substantially orthogonal to the axis A.
    The valve body 2 is further provided with two auxiliary accesses 8b, which are preferably arranged on respective sides of the main access 8a.
    According to a variant, the auxiliary accesses are arranged on a same side.
    The auxiliary accesses preferably are cylindrical and extend along respective axes Cl C2. The axes Cl and C2 preferably are transverse to the
    . DK 2019 70386 A8 axis A and preferably are symmetric relative to the axis B. According to a variant which is not shown herein, the axes Cl and C2 are oriented in a different manner and are not symmetric.
    The auxiliary accesses 8b are preferably provided with closing plugs or valves, also known as “test plugs”.
    According to a variant which is not shown herein, the valve body 2 does not have auxiliary accesses and the auxiliary accesses are obtained in elements on the outside of the valve body, which can be coupled to the valve body.
    In use, the auxiliary accesses 8b are opened and engaged by pressure detectors or other sensors configured to detect parameters of the fluid flow upstream and/or downstream of the housing seat 7.
    The mobile actuator 3 comprises a stem 9, a handle 10 and a shutter element 11.
    The stem 9 extends along a longitudinal axis D and is provided with a first end 13 and with a second end 14, which is opposite the first end 13 along the axis D.
    The first end 13 is coupled to the handle 10, whereas the second end 14 is coupled to the shutter element 11. The stem 9 is inserted into the main access 8a, so that the second end 14 faces the housing seat 7.
    The stem 9 is housed in the main access 8a, so that the axis D of the stem 9 substantially coincides with the axis
    ; DK 2019 70386 A8 B of the main access 8a.
    The first end 13 is coupled to the handle 10 so that the rotation of the handle 10 in a first direction causes a forward movement of the shutter element 11 along the axis D in the housing seat 7 and so that the rotation of the handle in a direction that is opposite the first one causes a backward movement of the shutter element 11 along the axis D in the housing seat 7.
    The handle 10 is movable between a completely open 10 position of the valve, in which the shutter element 11 does not engage the housing seat 7 (configuration of figure 1) and a completely closed position of the valve, in which the shutter element 11 engages the housing seat 7 so as to prevent fluid from flowing through the transit channel 6 (configuration of figure 2).
    During the rotation between the completely open position and the completely closed position, the handle 10 moves along the axis D in the same direction of the movements made by the stem 9.
    In other words, during the rotation of the handle 10 in the first direction, the handle 10 moves closer to the valve body 2, whereas, during the rotation in the direction opposite the first one, the handle 10 moves away from the valve body 2.
    The housing seat 7 has a shape that is complementary to
    ; DK 2019 70386 A8 the shape of the shutter element 11.
    A plurality of intermediate positions, used to adjust the flow rate, are possible between the completely open position and the completely closed position. One of the possible intermediate positions is shown, by way of example, in figure 3 and in figure 4.
    In the non-limiting example disclosed and shown herein, the shutter element 11 substantially has the shape of a truncated cone and the housing seat 7 has a substantially complementary shape.
    According to a variant which is not shown herein, the shutter element has a spherical or substantially semi- spherical shape.
    According to a variant which is not shown herein, the shutter element has a cylindrical shape.
    The shutter element 11 is provided with a lateral face 16 and with a bottom face 17.
    With reference to figure 2, when the valve 1 is in the completely closed position, the lateral face 16 blocks the flow of fluid, whereas the bottom face 17 does not help block the fluid flow in the transit channel 6.
    The closing by means of the lateral face 16 advantageously makes the valve 1 according to the invention a two-way valve.
    With reference to figure 1, the handle 10 is preferably
    2 DK 2019 70386 A8 provided with an indicator 20 of the position of the handle
    10.
    In the non-limiting example disclosed and shown herein, the indicator 20 is configured to provide two data concerning the position of the valve: a first data concerning the angular position of the handle 10 (for example, expressed in number of subtended angular sectors) for a fine adjustment of the fluid flow rate; a second data concerning the number of turns made by the handle 10 (for example, expressed in number of revolutions) indicating the axial movement of the stem 9.
    The first data is detected by means of a first bush 22 arranged inside the handle 10 around a rotary pin of the 13 handle 10 itself. The first bush 22 is arranged so as not to rotate together with the handle 10, but so as to axially move together with the handle 10. The first bush 22 is provided with a graduated face, which is visible through a window 23 obtained in the handle 10.
    The second data is detected by means of a second bush 24, which rotates around its own axis and is fitted on a pin of the handle 10. The second bush 24 is provided with an outer, lateral surface with teeth, which is engaged, when needed, by a tooth 25 of the first bush 22. The outer, lateral surface is configured so that, with every turn of
    DK 2019 70386 A8 the handle 10, the tooth 25 rotates the second bush 24. The second bush 24 is provided with a graduated face, which is visible through a window 26 obtained in the handle 10.
    The safety device 4 is configured to block the backward 5 movements of the stem 9 along the axis B and to enable the forward movements of the stem 9 along the axis B. In this way, the adjustment position obtained is ensured and an accidental opening as well as an undesired tampering are avoided. At the same time, the safety device 4, in emergency cases, allows the valve to be completely closed.
    The safety device 4 is configured to define a mechanical stopper, which prevents the stem 9 from making backward movements (i.e. valve opening movements). On the contrary, the forward movements of the stem 9 (i.e. valve closing movements) are free and not subjected to limitations.
    In this way, in use, after having set the desired adjustment position, the valve can be closed at any time. When it is opened again, the valve can be placed again in the previously set adjustment position.
    The mechanical stopper is preferably coupled to the mobile actuator 3, as described more in detail in the embodiments disclosed hereinafter. Indeed, the mechanical stopper can be supported by the stem 9 or by the shutter element 11 or by the handle 10.
    According to a variant which is not shown herein, the
    1 DK 2019 70386 A8 stopper is coupled to the valve body 2. For example, the stopper can be defined by a ring supported by a frame coupled to the valve body.
    Hereinafter is a description of some embodiments of the safety device, in which the stopper is coupled to the mobile actuator 3. However, the safety device can be designed in a different manner, though without going beyond the scope of protection of the invention.
    Figures 1-4 show a first embodiment of the safety device
    4.
    With particular reference to figures 3 and 4, the safety device 4 comprises a fixed element 28 coupled to the valve body 2, a fixing retaining ring 29, a stopper ring 30 and a spacer assembly 32.
    The fixed element 28 substantially is a cylindrical extension of the main access 8a of the valve body 2, which houses, on the inside, the stem 9. The fixed element 28 is preferably screwed to an outer terminal portion of the main access 8a.
    The fixed element 28 has a first cylindrical portion 33, which is coaxial to the axis B and is fixed to the main access 8a of the wvalve body 2, and a second cylindrical portion 34, which is coaxial to the axis B and extends inside a seat of the handle 10.
    The first portion 33 is threaded on the outside so as i. DK 2019 70386 A8 to be coupled, as explained more in detail below, to the fixing retaining ring 29.
    The first portion 33 has a greater cross section than the second portion 34. In this way, a joining ring 35 is defined between the first portion 33 and the second portion
    34. The joining ring 35 has at least two holes 37, which house, on the inside, respective portions of the spacer assembly 32, as described more in detail below.
    The spacer assembly 32 comprises at least two pins 39, a spring 40 and a support bush 41. The support bush 41 has a first end 42 and a second end 43 opposite the first end
    42. The first end 42 is provided with an annular projection 45, which defines an annular striking portion 46, against which the pins 39 rest, and an annular abutment portion 47, against which the spring 40 rests (these parts are better shown in the views of figures 1 and 2). The pins 39 are further inserted into a positioning ring 48.
    In the example shown herein, the pins 39 are cylindrical and the holes 37 have a circular cross section. Obviously, the pins 39 and the holes 37 can have different shapes.
    The spring 40 is arranged so as to strike against the annular edge of the main access 8a and the annular abutment surface 47.
    The fixing retaining ring 29 is arranged around the fixed element 28. In particular, the fixing retaining ring
    DK 2019 70386 A8 29 1s threaded on the inside, is partially screwed around the first portion 33 of the fixed element 28 and rests against the pins 39 of the spacer assembly 32. The fixing retaining ring 29 is movable between a blocking position, in which the stopper 30 is blocked in the backward direction (figure 4), and an unblocking position, in which the stopper 30 can move both backward and forward (figure 3). In order to shift to the blocking position (thus, shifting from the configuration of figure 3 to the one of figure 4), the fixing retaining ring 29 simply needs to be screwed to the first portion 33 of the fixed element 28. The screwing of the fixing retaining ring 29 determines a movement along the axis B of the spacer assembly 32. The fixing is reached when the second end 43 of the support bush 41 strikes against the stopper ring 30 of the stem 9.
    With reference to the configuration of figure 4, the rotation of the handle 10 is only allowed in the direction that determines the forward movement of the stem 9 and the closing of the valve. The backward movement of the stem 9 beyond the predetermined position is not possible.
    The safety device 4 is preferably provided with locking means to fix the fixing retaining ring 29 in the blocking position. In the non-limiting example disclosed and shown herein, the first portion 33 is provided with one and/or a
    1 DK 2019 70386 A8 plurality of perforated outer wings 50, which can be coupled to an outer ring 51 of the fixing retaining ring 29, for example trough lead sealing or through fixing pins.
    According to a variant which is not shown herein, the first portion is fixed to the valve body or to other fixed elements of the hydraulic plant.
    According to a variant which is not shown herein, the first portion is provided with a ring instead of wings.
    According to a variant which is not shown herein, the pins and the support bush of the spacer assembly are manufactured as one single piece.
    According to a further variant which is not shown herein, the pins and the disc of the spacer assembly are manufactured as one single piece.
    Figures 5 and 6 show a second embodiment of the safety device, indicated with number 104, in the configuration in which the valve is in an intermediate position.
    Hereinafter, the same reference numbers used for figures 1-4 will also be used to describe the substantially identical parts of the valve.
    The safety device 104 comprises a fixed element 128 coupled to the valve body 2, a fixing retaining ring 129, a stopper ring 130 and a support element 131.
    The fixed element 128 defines a cylindrical inner seat and has a first cylindrical portion 133, which is coaxial to
    » DK 2019 70386 A8 the axis B and is fixed to the main access 8a of the valve body 2, and a second cylindrical portion 134, which is coaxial to the axis B and at least partly extends inside a seat of the handle 10.
    The support element 131 is substantially defined by a cylindrical bush arranged around the second portion 134 of the fixed element 128, which does not rotate relative to the valve body 2, but moves axially relative to the valve body 2 together with the handle 10.
    In other words, the support element 131 is coupled to the mobile actuator 3 so as to move along the axis D in the same direction of the movements made by the stem 9 during the rotation between the completely open position and the completely closed position.
    In the non-limiting embodiment disclosed and shown herein, the support element 131 coincides with the first bush 22 of the indicator 20.
    The support element 131 is not completely housed in the handle 10 and has an outer portion 136, which is provided with the stopper ring 130. In the non-limiting example disclosed and shown herein, the stopper ring 130 is a stopping ring made of an elastic steel, usually referred to, in the industry, as “Seeger ring”.
    The fixing retaining ring 129 is arranged around the fixed element 128 and around the outer portion 136, so as to i DK 2019 70386 A8 contain the stopper ring 130. In other words, the fixing retaining ring 129 is provided with an outer annular surface 135, which faces the handle 10, and with an inner annular surface 136, which faces the stopper ring 130.
    Furthermore, the fixing retaining ring 129 is threaded on the inside and is partially screwed around the outer portion of the main access 8a.
    The fixing retaining ring 129 is movable between a blocking position, in which the stopper ring 130 is blocked in the backward direction (figure 6), and an unblocking position, in which the stopper ring 130 can move both backward and forward (figure 5).
    In order to shift to the blocking position (thus, shifting from the configuration of figure 5 to the one of figure 6), the fixing retaining ring 129 simply needs to be screwed to the main access 8a. The safety fixing is reached when the inner annular surface 136 of the fixing retaining ring 129 strikes against the stopper ring 130.
    With reference to the configuration of figure 6, the rotation of the handle 10 is only allowed in the direction that determines the screwing of the stem 9 and the closing of the valve. The unscrewing of the stem 9 beyond the predetermined position is not possible.
    The stopper ring 130 basically stops the axial backward movement of the handle 10 and permits the axis forward iy DK 2019 70386 A8 movement of the handle 10, thus allowing the valve to close.
    The safety device 104 is preferably provided with locking means, as well, to fix the fixing retaining ring 129 in the blocking position. For example, the outer ring of the fixing retaining ring 129 can be fixed to the valve body or to other fixed elements of the hydraulic plant through lead sealing or through fixing pins.
    Figures 7 and 8 show a third embodiment of the safety device indicated with number 204. Hereinafter, the same reference numbers used for figures 1-4 will also be used to describe the substantially identical parts of the valve.
    The safety device 204 comprises a fixed element 228 coupled to the valve body 2, a fixing retaining ring 229, a stopper ring 230, a support element 231, a first coupling bush 232 and a second coupling bush 233.
    The fixed element 228 substantially is a cylindrical extension of the main access 8a of the valve body 2, which houses, on the inside, the stem 9. The fixed element 228 is preferably screwed to an inner terminal portion of the main access 8a.
    The fixed element 228 defines a cylindrical inner seat and has a first cylindrical portion 235, which is coaxial to the axis B and is fixed to the main access 8a of the valve body 2, and a second cylindrical portion 236, which is coaxial to the axis B and at least partly extends inside a
    - DK 2019 70386 A8 seat of the handle 10.
    In the non-limiting example disclosed and shown herein, the first portion 235 and the second portion 236 are two distinct elements coupled to one another. According to a variant which is not shown herein, the first portion 235 and the second portion 236 are manufactured as one single piece.
    The support element 231 is provided with the stopper ring 230 and is arranged around the second portion 236 so as to axially move relative to the valve body 2 together with the handle 10. In other words, the support element 231 is coupled to the mobile actuator 3 so as to move along the axis D in the same direction of the movements made by the stem 9 during the rotation between the completely open position and the completely closed position.
    The fixing retaining ring 229 is arranged around the second portion 236 of the fixed element 228 and around the support element 231, so as to contain the stopper ring 230. In other words, the fixing retaining ring 229 is provided with an outer annular surface 240, which faces the handle 10, and with an inner annular surface 241, which faces the stopper ring 230.
    The first coupling bush 232 has a first end fixed to the main access 8a of the valve body 2 and a second end coupled to the second coupling bush 233, for example by means of an inner thread.
    19 DK 2019 70386 A8 The first coupling bush 232, in a variant which is not shown herein, could be manufactured as one single piece together with the valve body 2 or with the first portion
    235.
    The first coupling bush 232 has a preferably knurled outer portion, which is designed to cooperate, as described more in detail below, with the cylindrical inner surface 242 of the fixing retaining ring 229.
    The second coupling bush 233 has a first threaded end, which is externally coupled to the first coupling bush 232, and a second end, which is fixed, by means of a preferably knurled outer surface, to the cylindrical inner surface 242, which is also knurled, of the fixing retaining ring 229.
    The fixing retaining ring 229 is movable between a blocking position blocking the rotation of the second bush 233, in which the inner annular surface 241 of the fixing retaining ring 229 rests against the second bush 233, and an unblocking position unblocking the rotation of the second bush 233, in which the fixing retaining ring 229 is lifted and the inner annular surface 241 of the fixing retaining ring 229 does not rest against the second bush 233. In the unblocking position, the rotation of the fixing retaining ring 229 causes the rotation of the second bush 233.
    In order to block the stopper ring 230 in the desired adjustment position, thus preventing it from moving backward
    19 DK 2019 70386 A8 (hence, shifting from the configuration of figure 7 to the one of figure 8), it is sufficient to lift the fixing retaining ring 229 (a step which is not visible in figures 7 and 8) - so as to disengage it from the knurling of the coupling bush 232 - and rotate the fixing retaining ring 229 so as to obtain a rotation of the second coupling bush 233 and the lowering of the coupling bush 233, until it strikes against the stopper ring 230. The fixing retaining ring 229 is then further lowered so as to stop the rotation of the second bush 233 thanks to the coupling between the knurled outer surface of the coupling bush 232 and the cylindrical inner surface 242, which is also knurled, of the fixing retaining ring 229. According to a variant which is not shown herein, the retaining ring 229 is not present and a counter-nut is used, which is screwed to the second coupling bush 233. The safety device 204 is preferably provided with locking means, as well, to fix the fixing retaining ring 229 in the blocking position blocking the rotation of the second bush 233. For example, the outer ring of the fixing retaining ring 229 can be fixed to the valve body or to other fixed elements of the hydraulic plant through lead sealing or through fixing pins.
    With reference to the configuration of figure 8, the rotation of the handle 10 is only allowed in the direction
    > DK 2019 70386 A8 that determines the forward movement of the stem 9 and the closing of the valve. The backward movement of the stem 9 beyond the predetermined position is not possible.
    The stopper ring 230 basically stops the axial backward movement of the handle 10 and permits the axis forward movement of the handle 10, thus allowing the valve to close.
    According to a variant which is not shown herein, the fixing retaining rings 29, 129, 229 used in the solutions shown in figures 1-8 are provided with a braked rotation system or with a forced handling system, so as to avoid accidental rotations.
    Finally, it is clear that the valve and the plant described herein can be subjected to changes and variations, without for this reason going beyond the scope of protection of the appended claims.
    权利要求:
    Claims (28)
    [1] 1. Manual balancing valve for a hydraulic and/or hydro-thermo-sanitary plant comprising: — a valve body (2) comprising a transit channel (6) extending along a first longitudinal axis (A), a housing seat (7) arranged along the transit channel (6) and a main access (8a) for accessing to the transit channel (6); the main access (8a) extending along a second longitudinal axis (B) and being arranged at the housing seat (7); the valve body (2) being configured so as, in use, the fluid flows in the transit channel (6) and in the housing seat (7) substantially along an axial direction, without significant flow deviations; — a mobile actuator (3) comprising: e a stem (9) extending along a third longitudinal axis (D), and provided with a first end (13) and with a second end (14), opposite to the first end (13) along the third axis (D); the stem (9) being housed in the main access (8a) so as the second end (14) is addressed towards the housing seat (7); ® a handle (10) coupled to the first end (13) of the stem (9); and e a shutter element (11) coupled to the second end (14) of the stem (9); the first end (13) being coupled to the handle (10) so as
    > DK 2019 70386 A8 the rotation of the handle (10) in a first direction causes an advancing movement along the third axis (D) of the shutter element (11) in the housing seat (7) and the rotation of the handle (10) in a direction opposite to the first one causes a back movement along the third axis (D) of the shutter element (11) in the housing seat (7).
    [2] 2. Valve according to claim 1, wherein the second axis (B) is substantially orthogonal to the first axis (A).
    [3] 3. Valve according to claim 1 or 2, wherein the handle (10) rotates between a complete opening position of the valve wherein the shutter element (11) is not housed in the housing seat (7) and a complete closing position of the valve wherein the shutter element (11) is housed in the housing seat (7) so as to block the fluid flow through the transit channel (6).
    [4] 4. Valve according to claim 3, wherein the handle (10) moves along the third axis (D) in the same direction of the movements of the stem (9) during the rotation between the complete opening position and the complete closing position of the valve.
    [5] 5. Valve according to claim 3 or 4, wherein the shutter element (11) is provided with a lateral face (16) and with a bottom face (17); when the handle (10) is in the complete closing position, the lateral face (16) blocks the fluid flow, while the bottom face (17) does not contribute to the
    > DK 2019 70386 A8 fluid flow block in the transit channel (6).
    [6] 6. Valve according to any one of the foregoing claims, wherein the housing seat (7) has a shape, which is complementary to the shape of the shutter element (11).
    [7] 7. Valve according to any one of the foregoing claims, wherein the handle (10) is provided with an indicator (20) configured to indicate the position of the handle (10).
    [8] 8. Valve according to claim 7, wherein the indicator (20) is configured to provide a first data relating to the angular position of the handle (10) and a second data relating to the number of turns done by the handle (10).
    [9] 9. Valve according to any one of the foregoing claims comprising a security device (4; 104; 204) configured to block back movements of the stem (9) along the second axis (B) from a desired regulating position of the stem (9).
    [10] 10. Valve according to claim 9, wherein the security device (4; 104; 204) is configured to define a stopper (30; 130; 230) for blocking back movements of the stem (9) from the desired regulating position of the stem (9).
    [11] 11. Valve according to claim 10, wherein the stopper (30; 130; 230) is coupled directly or indirectly to the mobile actuator (3).
    [12] 12. Valve according to claim 10, wherein the stopper (30; 130; 230) is coupled directly or indirectly to the valve body (2).
    > DK 2019 70386 A8
    [13] 13. Valve according to claim 11, wherein the stopper (30) is coupled to the stem (9) of the mobile actuator (3).
    [14] 14. Valve according to claim 11, wherein the stopper (130; 230) is coupled to a support element (131, 231), which is coupled to the mobile actuator (3) so as to move along the third axis (D) in the same direction of the movements of the stem (9) during the rotation between the complete opening position and the complete closing position.
    [15] 15. Valve according to any one of claims from 10 to 14, comprising a fixing device (29, 39, 41, 48, 50, 51; 129; 229, 232, 233) configured to fix the stopper (30; 130; 230) in the desired position.
    [16] 16. Valve according to claim 15, wherein the fixing device (29, 39, 41, 48, 50, 51) comprises at least one fixing retaining ring (29; 129), which is mobile between a blocking position, wherein the stopper (30; 130) is blocked backward, and an unblocking position, wherein the stopper (30; 130) can move backward and forward, and locking means configured to lock the fixing retaining ring (29; 129) in the blocking position.
    [17] 17. Valve according to claim 15, wherein the fixing device (229, 232, 233) comprises a first coupling bush (232), a second coupling bush (233); the first coupling bush (232) having a first end coupled to the main access (8a) of the body valve (2) and a second end coupled to the second
    >s DK 2019 70386 A8 coupling bush (233) by thread; the first coupling bush (232) housing the stopper (230); the second coupling bush (233) being mobile between a blocking position wherein the stopper (230) is blocked backward, and an unblocking position, wherein the stopper (230) can move backward and forward.
    [18] 18. Valve according to claim 17, wherein the fixing device (229, 232, 233) comprises a fixing retaining ring (229); the fixing retaining ring (229) being mobile between a rotation blocking position wherein rotation of the second coupling bush (233) is blocked, and a rotation unblocking position wherein rotation of the second coupling bush (233) is blocked; wherein the second coupling bush (233) and the fixing retaining ring (229) are coupled so as, in the rotation blocking position, the rotation of the fixing retaining ring (229) causes the rotation of the second coupling ring (233) and so as, in the rotation unblocking position, the rotation of the fixing retaining ring (229) do not causes the rotation of the second coupling ring (233).
    [19] 19. Valve according to claim 18, wherein the fixing device (229, 232, 233) comprises locking means configured to lock the fixing retaining ring (229) in the rotation blocking position.
    [20] 20. Valve according to claim 16 or 19, wherein the locking means comprise sealing locking means or locking pins.
    [21] 21. Valve according to any one of claims from 9 to 17,
    Je DK 2019 70386 A8 wherein the security device (4; 104; 204) is configured to allow advancing movements of the stem (9) when the desired regulating position of the stem (9) is reached.
    [22] 22. Valve according to claim 21, wherein the security device (4; 104; 204) is configured to allow back movements of the stem (9) from a position advanced with respect to the desired regulating position of the stem (9) to the desired regulating position of the stem (9).
    [23] 23. Valve according to any one of the foregoing claims, wherein the shutter element (11) has truncated conical or spherical or semi-spherical or cylindrical shape.
    [24] 24. Valve according to any one of the foregoing claims, comprising at least two auxiliary accesses (8b) preferably cylindrical and extending along respective extension axes (Cl; C2).
    [25] 25. Valve according to claim 24, wherein the auxiliary accesses (8b) are arranged at respective sides of the main access (8a).
    [26] 26. Valve according to claim 24, wherein the auxiliary accesses (8b) are arranged at the same side of the main access (8a).
    [27] 27. Valve according to any one of claims from 24 to 26, wherein the extension axes (Cl; C2) are transversal to the first axis (A) and preferably symmetric with respect to the second axis (B).
    >, DK 2019 70386 A8
    [28] 28. Hydraulic and/or hydro-thermo-sanitary plant comprising at least one balancing valve as claimed in anyone of the foregoing claims.
    类似技术:
    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
    DK180502B8|2021-11-29|
    IT201800006596A1|2019-12-22|
    DE102019004339A1|2019-12-24|
    DK180502B1|2021-06-03|
    RU2019119415A|2020-12-21|
    DK201970386A1|2021-05-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    KR100994527B1|2007-07-20|2010-11-16|씨케이디 가부시키 가이샤|Manual valve|
    JP5350941B2|2009-08-20|2013-11-27|Ｃｋｄ株式会社|Flow control valve|
    ITMI20130973A1|2013-06-13|2014-12-14|Fimcim Spa|CONTROL VALVE|
    DE102014212065A1|2014-06-24|2015-12-24|Geze Gmbh|valve assembly|
    DE102016009525A1|2016-08-04|2018-02-08|Eisele Pneumatics Gmbh & Co. Kg|Valve|
    法律状态:
    2021-05-28| PAT| Application published|Effective date: 20201221 |
    2021-06-03| PME| Patent granted|Effective date: 20210603 |
    优先权:
    申请号 | 申请日 | 专利标题
    IT102018000006596A|IT201800006596A1|2018-06-22|2018-06-22|BALANCING VALVE FOR A HYDRAULIC CIRCUIT AND A HYDRAULIC AND / OR HYDROTHERMAL CIRCUIT INCLUDING THIS BALANCING VALVE|
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