Grain depot ventilation air net

Abstract

The utility model relates to the field of grain storage, in particular to a grain depot ventilation air net which comprises a ventilation net body, more than one closing plate is arranged on each of the two sides in the ventilation net body in a sliding mode, closing assemblies are rotatably connected to the inner sides of the closing plates, a negative pressure fan is fixedly arranged at one end in the ventilation net body, and a dustproof net is clamped to one side of the negative pressure fan. A trigger assembly is slidably arranged at the bottom of the ventilation net body and electrically connected with the closing assembly. The two sides of the ventilation net body are each provided with one or more arc-shaped sliding grooves, sliding shafts are fixedly arranged at the two ends of the closing plate, and the closing plate is arranged in the arc-shaped sliding grooves in a sliding mode through the sliding shafts. The negative-pressure fan is opened for ventilation when the ventilation net body is opened, so that the ventilation effect is further improved, the dustproof net is convenient to replace due to movable connection of the dustproof net and the negative-pressure fan, and the triggering assembly can send a signal to the closing assembly, so that the efficient protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of grain storage, in particular to a grain depot ventilation wind net. Background Art

[0002] A grain depot is a warehouse used to store grain for a long time. During the construction of a grain depot, in order to ensure the safety of the grain, it is necessary to ventilate the grain depot regularly. Therefore, a ventilation net is set on the grain depot for ventilation. However, when the ventilation net is opened for ventilation, small birds will enter the grain depot through the ventilation net. However, in order to prevent birds from entering, the gaps in the ventilation net will be set smaller and smaller, further leading to poor ventilation effect. Therefore, a grain depot ventilation net is needed to solve the problem that the existing ventilation net cannot be closed quickly to prevent birds from entering the ventilation net and the ventilation effect is poor.

[0003] A Chinese patent with publication number CN214282996U discloses a special bird-proofing net for grain depot ventilation, including a bird-proofing mounting window structure, an adjustable and easily disassembled lifting bird-proofing device, a rotating disturbance motor and a disturbance belt. The adjustable and easily disassembled lifting bird-proofing device is arranged on the bird-proofing mounting window structure, the rotating disturbance motor is arranged on the bird-proofing mounting window structure, and the disturbance belt is arranged on the rotating disturbance motor. The bird-proofing mounting window structure includes a mounting window, a ventilation exposure groove, a press-down anti-falling sheet, an extension strip, a limit block, a lifting adjustment bolt, a relative displacement retainer and a rotating handle. The adjustable and easily disassembled lifting bird-proofing device includes a lifting adjustment sleeve, a sealing bird-proofing plate and a bird-proofing plate connecting strip. The device effectively solves the problems of the bird-proofing nets currently on the market that reduce ventilation efficiency, are inconvenient to adjust, and are inconvenient to clean. The device is an efficient bird-proofing device that is easy to adjust.

[0004] In the above patent, the gap between the windows is small during installation, resulting in poor ventilation, and the device can only actively close and open the anti-bird device, but cannot passively trigger the anti-bird device. Utility Model Content

[0005] The utility model aims to provide a grain depot ventilation wind net, which not only has a good ventilation effect, but also can close the ventilation wind net immediately when birds land on the ventilation wind net, thereby effectively preventing birds from entering the grain depot.

[0006] The utility model aims to provide a grain depot ventilation net, comprising a ventilation net body, more than one closing plate being slidably arranged on both sides of the interior of the ventilation net body, closing components being rotatably connected to the inner sides of the closing plates, a negative pressure fan being fixedly arranged at one end of the ventilation net body, a dustproof net being clamped at one side of the negative pressure fan, a trigger component being slidably arranged at the bottom of the ventilation net body, and the trigger component being electrically connected to the closing component.

[0007] Furthermore, at least one arc-shaped slide groove is provided on both sides of the ventilation net body, and sliding shafts are fixedly provided at both ends of the closing plate, and the closing plate is slidably arranged in the arc-shaped slide groove through the sliding shafts.

[0008] Furthermore, the closing assembly includes a connecting rod, a vertical rod and an electric telescopic rod, one end of the connecting rod is rotatably connected to the closing plate, the other end of the connecting rod is rotatably connected to the vertical rod, the vertical rod is rotatably connected to the extended end of the electric telescopic rod, and the fixed end of the electric telescopic rod is rotatably set at the top of the ventilation net body.

[0009] Furthermore, the trigger assembly includes a trigger block and a groove. The groove is opened at the bottom of the ventilation net body. The trigger block is slidably set in the groove. A metal contact block 1 is fixedly set at the bottom of the trigger block, a metal contact block 2 is fixedly set at the bottom of the groove, and a reset spring is fixedly set between the groove and the trigger block.

[0010] Furthermore, four corners of one side of the negative pressure fan are provided with card slots, and four corners of one side of the dust screen are fixedly provided with card shafts, and the card shafts are card-engaged with the card slots.

[0011] The working principle and use principle of the utility model are as follows: the device controls the movement of the vertical rod and the connecting rod through the extension and retraction of the electric telescopic rod, and the moving connecting rod drives the closing plate to move upward, and in the process of movement, the sliding shafts at both ends of the closing plate slide from the bottom of the arc-shaped slide groove to the top, thereby sliding the vertical closing plate to a horizontal position, and the grain depot is ventilated by multiple horizontally placed closing plates, and the negative pressure fan can suck wind in or out of the grain depot, thereby further increasing the ventilation efficiency of the ventilation air network. In the trigger component, when small animals such as birds generate downward pressure on the trigger block, the metal contact block 1 and the metal contact block 2 contact each other and send a signal to the electric telescopic rod, thereby controlling the extension of the electric telescopic rod to close the closing plate, and the reset spring can push the trigger block out through the spring elastic force when there is no downward pressure on the trigger block.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the device can timely close and open the closing plate through the closing component to facilitate improving the ventilation effect of the grain depot, and use the negative pressure fan to effectively increase the ventilation effect. The dustproof net not only effectively prevents debris from entering the grain depot, but also facilitates the removal of the dustproof net for replacement, thereby improving the maintenance convenience of the device. The trigger block can quickly close the closing plate when a bird lands on the ventilation duct, thereby effectively preventing birds from entering the grain depot through the ventilation net and causing damage to the grain. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall internal structure of an embodiment of the utility model;

[0015] Figure 3 It is a sectional view of the overall side structure of an embodiment of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of a negative pressure fan in an embodiment of the utility model;

[0017] Figure 5 It is a cross-sectional view of the trigger component structure of an embodiment of the utility model.

[0018] Explanation of the accompanying drawings: 1. ventilation net body; 2. arc-shaped slide groove; 3. closing plate; 4. sliding shaft; 5. negative pressure fan; 51. card slot; 6. dustproof net; 61. card shaft; 7. closing assembly; 71. connecting rod; 72. vertical rod; 73. electric telescopic rod; 8. trigger assembly; 81. trigger block; 82. groove; 83. metal contact block one; 84. metal contact block two; 85. reset spring. DETAILED DESCRIPTION

[0019] according to Figure 1 and Figure 2 As shown: a grain depot ventilation net, including a ventilation net body 1, one or more closing plates 3 are slidably arranged on both sides of the ventilation net body 1, and the inner sides of the closing plates 3 are rotatably connected with closing components 7, a negative pressure fan 5 is fixedly arranged at one end of the ventilation net body 1, and a dustproof net 6 is clamped on one side of the negative pressure fan 5, a trigger component 8 is slidably arranged at the bottom of the ventilation net body 1, and the trigger component 8 is electrically connected to the closing component 7; more than one arc-shaped slide groove 2 is opened on both sides of the ventilation net body 1, and sliding shafts 4 are fixedly arranged at both ends of the closing plate 3, and the closing plate 3 is slidably arranged in the arc-shaped slide groove 2 through the sliding shaft 4.

[0020] In the specific implementation, the closing plate 3 can be set to be multiple, and each closing plate 3 is fixedly provided with a sliding shaft 4 at both ends. The number of arc-shaped slide grooves 2 is consistent with the number of closing plates 3. The placement angle of the closing plate 3 is adjusted by sliding the sliding shaft 4 of the closing plate 3 from the bottom to the top of the arc-shaped slide groove 2. When the sliding shaft 4 of the closing plate 3 is at the bottom of the arc-shaped slide groove 2, the closing plate 3 and the closing plate 3 are both vertically arranged in the ventilation net body 1, thereby closing the ventilation net body 1. When the closing plate 3 is horizontally arranged in the ventilation net body 1, the ventilation net body 1 is opened for ventilation, and the negative pressure fan 5 can blow air at the air outlet end to generate negative pressure, and the air in the grain depot is sucked out through the ventilation net body 1 through the negative pressure.

[0021] according to Figure 3As shown: the closing component 7 includes a connecting rod 71, a vertical rod 72 and an electric telescopic rod 73. One end of the connecting rod 71 is rotatably connected to the closing plate 3, and the other end of the connecting rod 71 is rotatably connected to the vertical rod 72. The vertical rod 72 is rotatably connected to the extended end of the electric telescopic rod 73. The fixed end of the electric telescopic rod 73 is rotatably set at the top of the ventilation net body 1.

[0022] In a specific implementation, a plurality of connecting rods 71 ​​can be provided, and the number of connecting rods 71 ​​is consistent with the number of closing plates 3. One end of the connecting rod 71 is rotatably provided on one side of the top of the closing plate 3, and the other end of the connecting rod 71 is rotatably connected to the vertical rod 72. The electric telescopic rod 73 can adopt the LA20 series. The electric telescopic rod 73 can be used to control the extension and retraction of the vertical rod 72. When the electric telescopic rod 73 is retracted, the vertical rod 72 moves toward the inside of the ventilation net body 1, and the moving vertical rod 72 drives the connecting rod 71 and the closing plate 3 to move inward. The closing plate 3 is then adjusted from the vertical direction to the horizontal direction according to the arc-shaped slide groove 2 during movement.

[0023] according to Figure 4 As shown, a card slot 51 is provided at each of the four corners of one side of the negative pressure fan 5 , and a card shaft 61 is fixedly provided at each of the four corners of one side of the dustproof net 6 , and the card shaft 61 is card-engaged with the card slot 51 .

[0024] In the specific implementation, the air outlet end of the negative pressure fan 5 is arranged toward the outside of the ventilation net body 1. When in use, the negative pressure fan 5 generates negative pressure on the outside of the ventilation net, and the negative pressure absorbs the air in the grain depot and draws it out. The dustproof net 6 is connected to the negative pressure fan 5 by inserting the clamping shaft 61 into the clamping groove 51, and the dustproof net 6 is used to effectively prevent debris in the air from entering the grain depot.

[0025] according to Figure 5 As shown: the trigger assembly 8 includes a trigger block 81 and a groove 82. The groove 82 is opened at the bottom of the ventilation net body 1. The trigger block 81 is slidably set in the groove 82. A metal contact block 1 83 is fixedly set at the bottom of the trigger block 81. A metal contact block 2 84 is fixedly set at the bottom of the groove 82. A reset spring 85 is fixedly set between the groove 82 and the trigger block 81.

[0026] In a specific implementation, when birds or other animals provide downward pressure to the trigger block 81, the trigger block 81 moves to the bottom of the groove 82, so that the metal contact block 1 83 and the metal contact block 2 84 contact each other, and send a control signal to the electric telescopic rod 73, so that the electric telescopic rod 73 controls the closing plate 3 to close. When there is no downward pressure on the top of the trigger block 81, the reset spring 85 can use its own elastic force to pop the trigger block 81 upward to separate the metal contact block 1 83 and the metal contact block 2 84. Since the electric telescopic rod 73 lacks the signal after the metal contact block 1 83 and the metal contact block 2 84 are separated, the electric telescopic rod 73 is controlled to extend further to open the closing plate 3.

Claims

1. A grain depot ventilation net, comprising a ventilation net body (1), characterized in that: One or more closing plates (3) are slidably arranged on both sides of the interior of the ventilation net body (1), and the inner sides of the closing plates (3) are rotatably connected to closing components (7). A negative pressure fan (5) is fixedly arranged at one end of the ventilation net body (1), and a dustproof net (6) is clamped on one side of the negative pressure fan (5). A trigger component (8) is slidably arranged at the bottom of the ventilation net body (1), and the trigger component (8) is electrically connected to the closing component (7).

2. A grain depot ventilation network according to claim 1, characterized in that: One or more arc-shaped sliding grooves (2) are provided on both sides of the ventilation net body (1), sliding shafts (4) are fixedly provided at both ends of the closing plate (3), and the closing plate (3) is slidably arranged in the arc-shaped sliding grooves (2) via the sliding shafts (4).

3. A grain depot ventilation network according to claim 1 or 2, characterized in that: The closing assembly (7) comprises a connecting rod (71), a vertical rod (72) and an electric telescopic rod (73); one end of the connecting rod (71) is rotatably connected to the closing plate (3); the other end of the connecting rod (71) is rotatably connected to the vertical rod (72); the vertical rod (72) is rotatably connected to the extended end of the electric telescopic rod (73); and the fixed end of the electric telescopic rod (73) is rotatably arranged at the top of the ventilation net body (1).

4. A grain depot ventilation network according to claim 1 or 2, characterized in that: The trigger assembly (8) comprises a trigger block (81) and a groove (82), wherein the groove (82) is formed at the bottom of the ventilation net body (1), the trigger block (81) is slidably arranged in the groove (82), a metal contact block 1 (83) is fixedly arranged at the bottom of the trigger block (81), a metal contact block 2 (84) is fixedly arranged at the bottom of the groove (82), and a return spring (85) is fixedly arranged between the groove (82) and the trigger block (81).

5. The grain depot ventilation air network according to claim 3, characterized in that: The trigger assembly (8) comprises a trigger block (81) and a groove (82), wherein the groove (82) is formed at the bottom of the ventilation net body (1), the trigger block (81) is slidably arranged in the groove (82), a metal contact block 1 (83) is fixedly arranged at the bottom of the trigger block (81), a metal contact block 2 (84) is fixedly arranged at the bottom of the groove (82), and a return spring (85) is fixedly arranged between the groove (82) and the trigger block (81).

6. A grain depot ventilation network according to claim 1, 2 or 5, characterized in that: A clamping slot (51) is provided at each of the four corners on one side of the negative pressure fan (5), and a clamping shaft (61) is fixedly provided at each of the four fixed corners on one side of the dustproof screen (6), and the clamping shaft (61) is clamped with the clamping slot (51).

7. The grain depot ventilation air network according to claim 4, characterized in that: A clamping slot (51) is provided at each of the four corners on one side of the negative pressure fan (5), and a clamping shaft (61) is fixedly provided at each of the four fixed corners on one side of the dustproof screen (6), and the clamping shaft (61) is clamped with the clamping slot (51).

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