• 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:
    The present invention relates to a ventilation unit (1) for use in a stable environment and with a fixed frame part (2) and a movable flap (3) hinged to the frame part (2), which flap (3) can be moved between a substantially closed and a substantially open position. The ventilation unit according to the invention is characterized in that the flap (3) is opened by slack by means of gravity and a possible wind pressure, and the degree of opening is controlled by slackening on a cord (4) connected to a drawbar (33) and via a pulley system (6) is connected to the flap (3).
    公开号:DK201870858A1
    申请号:DKP201870858
    申请日:2018-12-21
    公开日:2020-08-11
    发明作者:Holmgaard Opstrup Kim
    申请人:Skov As；
    IPC主号:
    专利说明:

    The present invention relates to a wall valve which is preferably used in the agro-industry for use in connection with livestock stables.
    As livestock stables around the world generally become wider, a need has arisen for a wall valve that can handle this challenge. The challenge is to increase the throw of the air so that the air is moved around the barn, in the same way as existing wall valves do when the barns are not wide. The existing solutions do not provide this possibility, as the direction determination as well as the amount of air that is sucked in is insufficient. By simply making existing valves larger or by increasing the ventilation speed, problems with drafts and cold precipitation can occur, resulting in reduced animal welfare.
    According to the prior art, wall valves are typically placed in a row along the walls of stables. Each row is equipped with a common drawbar so that all the valves' valves are activated simultaneously. For example, a wall valve with a flap is often used, where the flap opens by pulling on cords connected to the drawbar. The valve is fitted with springs that ensure that the flap returns when slackening. The springs also ensure that the flap is kept closed, even when there is a certain wind pressure on the valve. This system has, among other things, the disadvantage that the springs used are expensive and difficult to mount.
    In the case of the known valves, the opening often takes place simultaneously when a drawbar is displaced, but depending on the design of the specific barn, there will often be a need for the ventilation effect to be different in different parts of the barn.
    The valve can be provided with an air guide plate, which helps to guide the movement of the ventilation air into the barn. The air duct plates are adjusted
    DK 2018 70858 A1 2 when adjusting, but they are turned, for example, when cleaning, and since they do not have a fixed stop, they are not necessarily placed at the original angle afterwards.
    Existing flaps on wall valves consist of an inner and an outer part that are ultrasonically welded together and have an inlaid aluminum rail. The ultrasonic welding must ensure assembly of the two parts and prevent moisture and bacteria from penetrating inside the flap. Moisture in the flap can form ice, which in large quantities deforms the flap. Moisture, viruses and bacteria are undesirable due to the risk of infection between different groups of animals, and viruses and bacteria, if they occur inside the flap, are very difficult / impossible to fight effectively. Therefore, the possibility of these penetrating the flap must be minimized. | all flaps there are drainage holes in the bottom of the flap to guide any. condensation water out of the flap. This increases the risk of viruses and bacteria entering the flap. The disadvantage of ultrasonic welding is that the front and back of the flap cannot move independently in relation to each other when there is a large difference between indoor and outdoor temperature (delta T). The result is that the flap curves when delta T is largest. When the flap curves, the valve is no longer tight, which is unacceptable for the function of the valve. To counteract the deformation, an aluminum rail is fitted in the known valves, but this increases the cost of the valve. It is the object of the present invention to provide a wall valve which overcomes the disadvantages of the prior art.
    This object is achieved by means of a wall valve of the kind mentioned in the introduction, which is characterized in that the flap is opened by slack by means of gravity and a possible wind pressure from the intake air, and the degree of opening is controlled by slackening on a string which is connected to a drawbar and via a pulley system is connected to the flap.
    DK 2018 70858 A1 3 This results in a construction that works without springs in the valve, which as mentioned above are relatively expensive and difficult to install. According to a preferred embodiment, the forced guide system is rotatably mounted and can be moved between an original position and a new position, and the connection to the flap goes via an adjustable unit so that the point of attack of the cord on the flap can be moved between an original position and a new position. the movement pattern of the flap changes when switching to the new positions.
    This makes it possible to set each individual wall valve in accordance with the need for the current location. The service technician adjusts it when adjusting, but the setting can later be easily changed if necessary, as in a preferred embodiment the adjustment unit is designed so that it is easy to turn and the pulley system is designed with a finger grip so that it can also be moved between the original position and the new position without the use of tools. According to the invention, it is also advantageous for the wall valve to comprise a number of slats, the opening and closing of which are controlled by means of a forced guide on the flap, whereby the slats function to slow down the speed of the incoming air. This ensures that the draft effect and cold precipitation of the air is reduced, which allows for a greater ventilation effect without compromising the welfare of the animals.
    | in the preferred embodiment, a vertical central rib is mounted on the frame, which ensures that the slats are mounted centrally and which acts as a basis for the pulley system. This achieves good control of the slats so that they can withstand a large pressure, and the central location of the pulley system ensures a good power transmission to the middle part of the flap.
    DK 2018 70858 A1 4 It is advantageous for the flap to be mounted in a bearing on the frame by means of a knife hinge which has such flexibility that, for example, a strong ice formation or other unintentional force action can cause the hinge to jump out of the bearing. , without damaging the hinge. As a result, the hinge can be clicked back into place when the normal situation is restored.
    According to the preferred embodiment, the wall valve at the top comprises a hinged air guide plate which can be turned down, for example for cleaning, and which has an adjustable stop in the upward direction. The stop ensures that it is easy to place the air guide plate in the correct position when it has been moved in connection with cleaning, or if a bird has affected it with such force that the setting has been changed. According to yet another preferred embodiment of the invention, the flap comprises an inner and an outer plate part assembled by means of snap locks, which allow the parts to move relative to each other when exposed to unequal temperature influences. In this way it is ensured that it is not necessary to ultrasonically weld the parts of the flap together, nor is it necessary to add reinforcements to the flap to ensure that it does not bend when there is a difference in temperature inside and outside the barn. A construction is thus obtained that is both cheaper and better. It is advantageous that a securing unit is placed between the drawbar and the cord, which comprises a resilient element, guide elements and a fastening element for mounting on the drawbar. This safety device protects the animals from damage if they are in the area where the flap and frame meet when the flap closes. The resilient element ensures that the animal can move. In addition, the resilient element ensures that the flap and the valve are not damaged by any build-up of ice between the flap and the frame. When the ice formation disappears, the spring will cause the flap to close as the ice dries. The fuse unit is also an important part of the whole
    DK 2018 70858 A1 The differentiation principle, where the movement pattern means that there is a need for the resilient element. The spring also ensures that adjustment of the valve is not critical - the valve will always close.
    5 The unit is advantageously designed to be provided with insect nets, so that the risk of infection and discomfort for the animals is avoided, and / or light-reducing modules, which enable the farmer to determine the length of the day without regard to the course of the sun.
    The invention will be explained in more detail below with reference to the drawings, in which Figs. Fig. 1 shows a perspective view of a closed valve with air guide plate set to normal operation (non-differentiated); Fig. 2 shows a perspective view of an open valve with air guide plate set for normal operation (non-differentiated); 3 shows a perspective view of a valve, seen from behind and with two details 3a and 3b. FIG. Fig. 4 shows a pulley system in normal position seen from the right; Fig. 5 shows the pulley system in differentiated position seen from the right; Fig. 6 shows the pulley system in the normal position seen from the left; Fig. 7 shows the pulley system in differentiated position seen from the left; 8 shows the inner part of a switch in the normal position,
    DK 2018 70858 A1 6 Fig. Fig. 9 shows the inner part of the switch in differentiated position; Fig. 10 shows another view of the pulley system; Fig. 11 shows the outer part of the switch seen from an angle from below, Fig. 12 shows the outer part of the switch, seen obliquely from above, Fig. 13 shows the knife hinge seen from the side and built into the construction, Fig. 14 shows the knife hinge itself in perspective, Fig. 15 shows the stop system for the air guide plate; 16 shows the stop itself, FIG. Fig. 17 shows the inside of an outer part of the air guide plate; Fig. 18 shows the inside of an inner part of the air guide plate; 19 shows the fuse unit, and FIG. 20 shows a guide rail for the fuse unit.
    In FIG. 1 shows an example of a wall valve 1 according to the invention. In general, the wall valve 1 consists of a frame 2 and a flap 3. By activating a rod 33, the flap 3 can be opened completely or closed relatively tightly, as will be described in more detail below.
    The ventilation of a barn takes place in the following way. A series of valves 1 are located at substantially the same height and they are all coupled on a common
    DK 2018 70858 A1 7 drawbar 33. When the rod 33 is activated by being pulled in, the valve flap 3 is gradually opened in accordance with the movement of the rod
    The movement takes place by the flap 3 tilting down under the influence of gravity and a possible air pressure. The degree of opening is controlled by a cord 4, which is connected to the flap 3 by an adjusting unit 5, and which goes via a switch in the form of a movable pulley system 6, which is located on a central part or central rib 7 of the valve unit 1, and which, as shown in the drawing, is provided with a bracket 8 to ensure that the cord 4 does not slide off the pulley of the pulley system. A valve 1 operates in such a way that it can be set to open without or with differentiation. Without differentiation, the flap 3 will open gradually and approximately linearly in accordance with the movement of the drawbar 33. When the flap 3 is almost open (for example approx. 80% open), slats 17 will gradually open, so that full ventilation is obtained. In order to improve the possibility of controlling the air flow, the valve 1 is suitably provided with a baffle plate 10, which will be described in more detail below. The differentiation is obtained when the point of attack of the cord 4 on the flap 3 is moved by rotating the adjusting lever 5 and the pulley system 6 is turned downwards. Hereby the flap 3 will open faster when the drawbar 33 is moved in the opening direction. Differentiated setting is used to obtain a supply air in the barn, which partly suits the building, and partly takes into account other conditions that can influence an optimal air distribution in the barn. According to the invention, this is done by turning the switches on the flap 3 and the center rib 7, respectively, without the use of tools to the desired position, "normal" or "differentiated" opening of the valve. Due to the system with the switches, the flap set to differentiated opening will initially be delayed in its opening, but it will catch up with another flap, which is set to normal opening, around the time when fully open position is reached. . When closing
    DK 2018 70858 A1 8 valve 1 will follow the same return pattern.
    Icons 11, 12 on the flap and center rib 7 show the importance of the individual position.
    Both the setting lever 5 (Figs. 8 and 9) and the pulley system 6 (Figs. 4 to 7) must be on the same icon to achieve the desired opening type, as otherwise the flap 3 will not be able to close correctly.
    During the changeover, the pull cord 4 will not fall on the tip 9, as it is fixed by a bracket 8. The service technician assesses during installation which valves are to be set for normal or differentiated opening, respectively.
    Then the adjusting lever 5 and the pulley system 6 are set to the desired type of movement during assembly, but can be adjusted to the second function at any time if it proves necessary.
    The switching of the pulley system takes place by pressing a finger grip 14 with an engaging pin 15 and leading it to the desired rotational position, where the pin 15 engages with a recess, thereby ensuring that the correct position is obtained.
    The finger grip 14 allows the fitter to perform the switching without the use of tools.
    As shown in Figs. 8 and 9, where the adjusting lever 5 is shown in the two positions, the adjusting lever 5 on the flap 3 is provided with a rotating arrow 16 so that the fitter can see how to turn it.
    In the first position the eye is 19,
    in which the cord is mounted, shown at the bottom of the drawing, and in the second position the eye 19 is shown at the top.
    As shown in the drawing i.a. in FIG. 3, the wall valve 1 also comprises five slats 10, where the pulley system 6 on the central rib 7, in addition to the switching, is used to hold the upper slat 10 in its center bearing.
    A holding device 18 in the center rib 7 ensures that the switch, if not positioned correctly, does not slip out of the bearing.
    The movement of the slats 10 is controlled by means of a forced guide 17 in such a way that the slats 10, when gradually opening the flap 3, are in the closed position, where they brake the incoming air until the flap 3 is approx. 80% open, after which they open completely
    DK 2018 70858 A1 9 over a short walk, so that maximum air flow can be ensured if a serious cooling need arises. The flap 3 is rotatably mounted on the frame by means of a knife hinge 20. The knife hinge 20 ensures that the flap 3 and the frame 2 are not damaged by any.
    construction of ice between flap 2 and frame 2. The knife hinge 20 is a plastic hinge which grips around a shaft. The hinge 20 can, by ice formation, or if an animal gets trapped between the frame 2 and the flap 3, give up to 40% before slipping out of the bearing. The hinge 20 does not slide back to its normal bearing if it pops out of the bearing. If this happens, the hinge 20 must be pressed back in place before the valve 1 is closed. Under normal circumstances, the hinge 20 can withstand this load without being deformed or broken.
    In one embodiment, the valve is provided with an air guide plate 21, which is provided with a stop 22. The stop 22 can be moved to the desired angle of the air flow by means of a finger grip 23 by means of a finger grip 23. The stop 22 is located on an element 23 which is provided with markings 24 which show the angle of the air guide plate 21 when it is pressed up against the stop
    22. The stop 22 only acts as a stop by upward movement of the air guide plate 21. The air guide plate 21 is pressed by cleaning downwards, so that it is possible to clean the top of the plate 21. After cleaning, the plate 21 can then be pushed back towards the stop 22 on both sides. so that the rotational position of the plate is again correct. A snap lock 25 in the sides ensures that the air guide plate 21 is not immediately pushed out of the lock without impact force. The snap lock 25 can keep individual birds from landing on the plate 21. As a result of the stop 22, the air guide plate 21 can always be pushed back to the basic setting, without there being any doubt as to whether the angle is correct.
    DK 2018 70858 A1 10 According to a preferred embodiment, which is shown in fig. 17 and 18, the flap 3 is assembled by means of snap locks 26. The snap locks 26 and their mutual position are essential for the function of the flap 3 when it is assembled and mounted. The location of the snap locks 26 causes that when the flap 3 in the barn environment is exposed to large temperature differences between the outside temperature and the barn temperature (delta T), the flap 3 is not deformed, as an inner plate 27 and an outer plate 28 can move freely relative to each other when the plates 27, 28 due to differences in the coefficient of thermal expansion will be unequal in size. Expansion in connection with moisture absorption in the plastic will be minimal and thus not relevant in this context, as the moisture absorption is assumed to be the same regardless of the location of the plates in relation to the environment.
    The assembly of the flap 3 is irreversible - once the plates 27, 28 are clicked together, it is thus impossible to separate them subsequently without destroying the flap 3.
    As the valve 1 opens with slack and closes with a pull, there is a risk of damage to valve 1 and animals if the necessary considerations are not taken into account. For this purpose, as shown in FIG. 19 and 20 developed a fuse unit 29 with a number of beneficial effects. The securing unit 29 comprises a spring 30, two identical guide rails 31 and a fastening clip 32 (see Fig. 3) to the drawbar 3. When the unit 29 is pulled, the spring 30 is compressed until the spring 30 is pressed 30% to the bottom and when is released on the traction force, the spring 30 compresses the unit 29 until a fixed stop, whereby the compressive force decreases. The safety unit 29 protects the animals from damage should they be in the area where flap 2 and frame meet when flap 3 closes (scissor effect). The pulling speed combined with the spring 30 provides sufficient time for the animal to move, and the compressive force on the spring 30 is adjusted so that the animal can come free when it detects that it is in a pinch. This avoids unnecessary damage to the animal. In addition, the spring 30 ensures that the flap 3 and the valve
    DK 2018 70858 A1 11 1 is not damaged by any build-up of ice formation between flap 2 and frame.
    When the ice formation disappears, the spring will cause the flap 3 to close as the ice dries.
    The safety unit 29 is also an important part of the whole differentiation principle, where the movement pattern means that there is a need for the spring 30, and in addition the spring 30 ensures that when the valve 1 is closed, strong winds from outside cannot open the valve 1. According to a preferred embodiment, the wall valve can be provided with insect nets, which can reduce the risk of infection, and / or dimming elements.
    which can ensure that the farmer has the opportunity to control the light exposure of the animals.
    DK 2018 70858 A1 12 Reference designations: 1 Ventilation unit 2 Frame 3 Flap 4 Cord 5 Adjusting unit / switch 6 Pulley system / switch 7 Center rib 8 Bracket 9 Pulley 10 Slats 11 Icon 12 Icon 13 14 Finger grip 15 Engagement pin 16 Rotary arrow 17 Forcing 18 Holding eye knob 19 Fastening device 21 Air guide plate 22 Stop 23 Finger grip 24 Markings 25 Click lock 26 Snap locks 27 Inner plate 28 Outer plate
    DK 2018 70858 A1 13 29 Securing unit 30 Spring 31 Guide rails 32 Fastening clips 33 Drawbar
    权利要求:
    Claims (10)
    [1]
    Ventilation unit (1) for use in a stable environment and with a fixed frame part (2) and a movable flap (3) hinged on the frame part 2, which flap (3) can be moved between a substantially closed and a the substantially open position, characterized by the flap (3) being opened by slack by means of gravity and a possible wind pressure, and the degree of opening being controlled by slackening on a string (4) connected to a drawbar (33) and via a pulley system (6) is connected to the flap (3).
    [2]
    Ventilation unit (1) according to claim 1, characterized in that the pulley system (6) is rotatably mounted and can be moved between an original position and a new position, and the connection to the flap (3) goes via a setting unit ( 5), which can be rotated so that the point of attack of the cord (4) on the flap (3) can be moved between an original position and a new position, where the movement pattern of the flap changes when changing to the new positions.
    [3]
    Ventilation unit (1) according to claim 1 or 2, characterized in that the setting unit (5) is designed so that it is easy to rotate and the pulley system is designed with a finger grip so that it can also be moved between it. original position and the new position without the use of tools.
    [4]
    Ventilation unit according to any one of the preceding claims, characterized in that it comprises a number of slats (10), the opening and closing of which are controlled by means of a forced guide (17) on the flap (3), which slats function for to slow down the incoming air.
    DK 2018 70858 A1 15
    [5]
    Ventilation unit according to any one of the preceding claims, characterized in that a vertical central rib (7) is mounted on the frame (2), which ensures that the slats (10) are mounted centrally and which acts as a basis for the pulley system. (6).
    [6]
    Ventilation unit (1) according to any one of the preceding claims, characterized in that the flap (3) is mounted on a shaft on the frame (2) by means of a knife hinge (20) having such flexibility that for example, a strong ice formation or other unintentional force action can cause the hinge to jump out of the bearing without damaging the hinge (20).
    [7]
    Ventilation unit (1) according to any one of the preceding claims, characterized in that it comprises at the top a hinged discharge plate which can be turned down, for example for cleaning, and which has an adjustable stop in the upward direction.
    [8]
    Ventilation unit (1) according to any one of the preceding claims, characterized in that the flap (3) comprises an inner and an outer plate part (27 and 28) assembled by means of a snap-lock system ( 26), which allows the parts (27 and 28) to move relative to each other when exposed to unequal temperature influences.
    [9]
    Ventilation unit (1) according to any one of the preceding claims, characterized in that a securing unit (29) is located between the drawbar (33) and the cord (4), which comprises a resilient element (30 ), guide elements (31) and a fastening element (32) for mounting on the wooden bar (33).
    [10]
    Ventilation unit (1) according to any one of the preceding
    DK 2018 70858 A1 16 requirements, characterized in that the unit (1) is designed to be provided with insect nets and / or light-reducing modules.
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    同族专利:
    公开号 | 公开日
    DK180195B1|2020-08-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2020-08-11| PAT| Application published|Effective date: 20200622 |
    2020-08-12| PME| Patent granted|Effective date: 20200812 |
    优先权:
    申请号 | 申请日 | 专利标题
    DKPA201870858A|DK180195B1|2018-12-21|2018-12-21|Ventilation unit|DKPA201870858A| DK180195B1|2018-12-21|2018-12-21|Ventilation unit|
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