Insect-proof ventilation device for granary

Abstract

The utility model discloses an insect-proof ventilation device for a granary. The insect-proof ventilation device for the granary comprises a ventilation pipe, an insect-proof net, frameworks, a connecting plate and a fastening mechanism, the ventilation pipe is provided with an air blower and used for guiding air into the granary, the connecting plate is installed on the ventilation pipe, the frameworks are installed on the connecting plate, each framework protrudes out of the ventilation pipe, and the fastening mechanism is arranged on the framework. The framework is used for supporting the insect-proof net, and the insect-proof net is used for preventing insects from entering the ventilation pipe and is fixed to the connecting plate or the ventilation pipe through a fastening mechanism. The insect-proof ventilation device for the granary can prevent insect pests and improve the air inlet amount at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of grain warehouse ventilation and insect prevention, in particular to an insect prevention ventilation device for a grain warehouse. Background Art

[0002] In order to prevent pest infection during grain silo ventilation, insect-proof nets are generally installed flat on the surface of the vents. Although this avoids the problem of pests entering the granary through the vents, the insect-proof nets also increase wind resistance, significantly reducing the air intake and affecting the ventilation effect. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an insect-proof ventilation device which can increase the air intake and prevent insect pests at the same time.

[0004] To solve the above problems, the utility model provides an insect-proof ventilation device for a granary, the insect-proof ventilation device for a granary comprising a ventilation pipe, an insect-proof net, a frame, a connecting plate and a fastening mechanism, the ventilation pipe having a blower, the ventilation pipe being used to introduce wind into the granary, the connecting plate being mounted on the ventilation pipe, the frame being mounted on the connecting plate, each of the frames protruding outward from the ventilation pipe, the frame being used to support the insect-proof net, the insect-proof net being used to isolate pests from entering the ventilation pipe, and the insect-proof net being fixed to the connecting plate or the ventilation pipe by a fastening mechanism.

[0005] Furthermore, the skeleton is rotatably connected to the connecting plate, there are multiple skeletons, at least one skeleton crosses with the other skeletons, and the cross positions of the skeletons are fixed by fixing parts.

[0006] Furthermore, the fixing member is a cable tie, a wire or a rope.

[0007] Furthermore, each of the skeletons is semicircular.

[0008] Furthermore, an avoidance gap is provided on the connecting plate, a fixing rod is pivotally connected to the ventilation pipe, a fixing nut is threaded on the fixing rod, the fixing rod is located in the avoidance gap, and the fixing nut presses the connecting plate against the end face of the ventilation pipe.

[0009] Furthermore, the fastening mechanism is a cable tie, and the cable tie fastens the insect-proof net on the ventilation pipe.

[0010] Furthermore, the fastening mechanism is a pressing plate, the pressing plate is pressed against the connecting plate by a fixing nut, and the insect-proof net is clamped between the pressing plate and the connecting plate.

[0011] Furthermore, the fastening mechanism is a limiting column, the limiting column is arranged on the connecting plate, and the frame is fixed on the limiting column.

[0012] Further, a connection enclosure extends upward on one side of the center of the connection plate, and the limiting post is arranged inside the connection enclosure.

[0013] Further, a limiting sleeve is arranged on the connection plate, and both ends of the framework are inserted into the limiting sleeve.

[0014] The insect-proof ventilation device for a granary of the present utility model uses a framework to support an insect-proof net, making the impact-proof net bulge outwards, increasing the area of the air inlet surface, thereby increasing the air intake volume and preventing pests from entering the ventilation pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a preferred embodiment of the insect-proof ventilation device for a granary of the present utility model.

[0016] Figure 2 is a schematic structural diagram of the insect-proof ventilation device for a granary of the present utility model with the insect-proof net removed.

[0017] Figure 3 is Figure 2 the cross-sectional view in

[0018] Figure 4 is a schematic structural diagram of the fixing rod and the connection plate.

[0019] Figure 5 is Figure 2 the partial enlarged view of A in

[0020] Figure 6 is a schematic structural diagram of another embodiment of the fastening mechanism.

[0021] Figure 7 is Figure 6 the partial enlarged view of B in

[0022] Figure 8 is a schematic structural diagram of the pressing block adapted to the fixing rod.

[0023] Figure 9 is a schematic structural diagram of another embodiment of the fastening mechanism.

[0024] The meanings of the reference numerals in the drawings are as follows:

[0025] ventilation pipe 1, insect-proof net 2, framework 3, connection plate 4, avoidance notch 41, fastening mechanism 5, pressing plate 52, receiving groove 521, limiting post 53, mounting seat 6, fixing rod 7, fixing nut 8, limiting sleeve 9. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present utility model will be further described below with reference to the drawings.

[0027] Embodiment 1

[0028] like Figure 1 and Figure 2 As shown, the preferred embodiment of the insect-proof ventilation device for granary of the utility model comprises a ventilation pipe 1, an insect-proof net 2, a frame 3, a connecting plate 4 and a fastening mechanism 5. One end of the ventilation pipe 1 is located outside the granary, and the other end of the ventilation pipe 1 is located inside the granary. It should be known that the ventilation pipe 1 has a fan capable of introducing wind, such as a blower or an axial flow fan; the ventilation pipe 1 is used to introduce wind into the granary, that is, the fan introduces the outside air into the granary. The connecting plate 4 is installed on the ventilation pipe 1, and the frame 3 is installed on the connecting plate 4. There are multiple frames 3, and multiple frames 3 are evenly distributed on the connecting plate 4. The insect-proof net 2 is covered on the frame 3, and the frame 3 is used to support the insect-proof net 2 to prevent the insect-proof net 2 from being sucked into the ventilation pipe 1. The insect-proof net 2 is used to isolate pests from entering the ventilation pipe 1, and the insect-proof net 2 is fixed to the ventilation pipe 1 by a fastening mechanism 5.

[0029] Combination Figures 3 to 5 As shown, the ventilation duct 1 is provided with a connecting edge, and the connecting edge is provided with a notch. The outer wall of the ventilation duct 1 is provided with a mounting seat 6, and a fixing rod 7 is rotatably provided on the mounting seat 6 so that the fixing rod 7 can rotate, and a fixing nut 8 is screwed on the fixing rod 7, and the fixing rod 7 is connected to the connecting plate 4 after passing through the notch. When fixing is required, the fixing rod 7 is rotated into the notch, and then the connecting plate 4 is locked with the fixing nut 8; when the connection of the connecting plate 4 needs to be released, the nut is loosened and the fixing rod 7 is rotated to make the fixing rod 7 disengage from the notch. Specifically, the fixing rod 7 includes a transverse rod body and a longitudinal rod body, and the longitudinal rod body is connected to the transverse rod body as a whole, so that the fixing rod 7 is T-shaped, and the connection between the longitudinal rod body and the transverse rod body can be formed by welding, screwing or integral manufacturing, and the transverse rod body is rotatably provided on the mounting seat 6, and the longitudinal rod body passes through the notch.

[0030] The connecting plate 4 is circular, and the middle part of the connecting plate 4 is perforated to ensure that air can pass through the connecting plate 4. The connecting plate 4 is provided with an avoidance notch 41, and the avoidance notch 41 is used to avoid the fixing rod 7, so that the longitudinal rod body of the fixing rod 7 can be located in the avoidance notch 41 after rotation. When the fixing nut 8 is screwed to make the fixing nut 8 abut against the connecting plate 4, the connecting plate 4 is fixed on the connecting edge of the ventilation pipe 1. When the fixing nut 8 is screwed in the reverse direction, after the fixing nut 8 is separated from the connecting plate 4, the fixing rod 7 can be rotated to fall off the avoidance notch 41, and the connection between the connecting plate 4 and the ventilation pipe 1 can be released. A plurality of limiting sleeves 9 are provided on the connecting plate 4, and the plurality of limiting sleeves 9 are evenly distributed on the connecting plate 4. The limiting sleeves 9 have limiting holes, and the two ends of the skeleton 3 are inserted into the limiting holes of the limiting sleeves 9. Inserting the frame 3 into the limiting sleeve 9 by plugging allows the frame 3 to be detachably connected to the connecting plate 4, and the frame 3 can be pre-installed on the connecting plate 4; the limiting sleeve 9 allows the frame 3 to be rotatably arranged in the limiting sleeve 9, so that the frame 3 can be pre-installed on the connecting plate 4 before assembly, and the volume will not be increased. In other embodiments, the frame 3 can also be welded and fixed to the connecting plate 4.

[0031] The plurality of frames 3 are evenly distributed in a fan shape, one frame 3 intersects with other frames 3 vertically, and the frames 3 are fixed at the intersections by fixing members, which are cable ties, and in other embodiments, can also be iron wires or ropes. The frames 3 are semicircular, so that the frames 3 protrude outward, and the insect-proof net 2 also protrudes outward, thereby increasing the area of ​​the insect-proof net 2, and thus increasing the area of ​​the air intake.

[0032] The fastening mechanism 5 is a cable tie, which fastens the insect-proof net 2 to the ventilation pipe 1 .

[0033] When in use, the fan introduces air into the ventilation pipe 1, and the insect-proof net 2 can isolate pests and prevent pests from entering the ventilation pipe 1, thereby preventing pests from entering the granary. The frame 3 is configured to protrude outward from the ventilation pipe 1, thereby preventing the insect-proof net 2 from being flat, and even if the insect-proof net 2 protrudes outward from the ventilation pipe 1, the area of ​​the insect-proof net 2 entering the air is increased, so that the air intake of the ventilation pipe 1 is increased.

[0034] The comparison experiment between the existing ventilation device and the ventilation device of the utility model should be known that the pipe diameter and fan power of the experimental object are the same, and the measurement conditions are the same. After the fan is started, the airflow is stabilized, and then the air volume of the ventilation pipe 1 is measured and the average wind speed of the ventilation pipe 1 is calculated and recorded. The average value obtained after recording multiple values ​​is as follows:

[0035]

[0036] As can be seen from the above table, the wind speed has increased by approximately 51%, and the air volume has also increased by approximately 51%, showing a good improvement effect.

[0037] Example Two

[0038] The difference between this embodiment and Example One lies in the different structure of the fastening mechanism 5.

[0039] As Figures 6 to 8 shown, in this embodiment, the fastening mechanism is a pressing plate 52. A notch is also provided on the pressing plate 52. The fixing rod 7 is located within the notch. The outer edge of the insect-proof net 2 is located between the pressing plate 52 and the connecting plate 4. The fixing nut 8 presses against the above-mentioned pressing plate 52, thereby fixing the insect-proof net 2 to the connecting plate 4. A receiving groove 521 is provided on the shown pressing plate 52, and the receiving groove 521 is used to receive the limiting sleeve 9.

[0040] Example Three

[0041] The difference between this embodiment and Example One lies in the different structure of the fastening mechanism 5.

[0042] As Figure 9 shown, the fastening mechanism 5 is a limiting post 53. There are multiple limiting posts 53, and the limiting posts 53 are evenly distributed on the connecting plate 4. The insect-proof net 2 is threaded through the limiting posts 53. The limiting posts 53 are provided on the connecting plate 4, and the skeleton 3 is welded to the limiting posts 53. Specifically, a connecting enclosure 42 extends upward from one side of the center of the connecting plate 4, and the limiting post 53 is welded to the inner side of the connecting enclosure 42. One side of the center of the connecting plate 4 is the inner side.

[0043] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structures made by using the description and drawings of the present invention, directly or indirectly applied in other related technical fields, are similarly within the patent protection scope of the present invention.

Claims

1. An insect-proof ventilation device for a granary, characterized in that: It includes a ventilation pipe, an insect-proof net, a frame, a connecting plate and a fastening mechanism. The ventilation pipe has a blower. The ventilation pipe is used to introduce wind into the granary. The connecting plate is installed on the ventilation pipe. The frame is installed on the connecting plate. Each frame protrudes out of the ventilation pipe. The frame is used to support the insect-proof net. The insect-proof net is used to isolate pests from entering the ventilation pipe. The insect-proof net is fixed to the connecting plate or the ventilation pipe by a fastening mechanism.

2. The insect-proof ventilation device for a granary as claimed in claim 1, characterized in that: The frame is rotatably connected to the connecting plate. There are multiple frames, at least one of which intersects with the other frames, and the intersecting positions of the frames are fixed by fixing pieces.

3. The insect-proof ventilation device for a granary as claimed in claim 2, characterized in that: The fixing piece is a cable tie, iron wire or rope.

4. The insect-proof ventilation device for a granary as claimed in claim 1, characterized in that: Each of the skeletons is semicircular.

5. The insect-proof ventilation device for a granary as claimed in claim 1, characterized in that: The connecting plate is provided with an avoidance notch, the ventilation pipe is pivotally connected with a fixing rod, the fixing rod is threaded with a fixing nut, the fixing rod is located in the avoidance notch, and the fixing nut presses the connecting plate against the end face of the ventilation pipe.

6. The insect-proof ventilation device for a granary as claimed in claim 5, characterized in that: The fastening mechanism is a cable tie, which fastens the insect-proof net on the ventilation pipe.

7. The insect-proof ventilation device for a granary as claimed in claim 5, characterized in that: The fastening mechanism is a pressing plate, and the pressing plate is pressed on the connecting plate by a fixing nut, and the insect-proof net is clamped between the pressing plate and the connecting plate.

8. The insect-proof ventilation device for a granary as claimed in claim 1, characterized in that: The fastening mechanism is a limiting column, the limiting column is arranged on the connecting plate, and the frame is fixed on the limiting column.

9. The insect-proof ventilation device for a granary as claimed in claim 8, characterized in that: One side of the center of the connecting plate extends upward to form a connecting enclosure, and the limiting column is arranged on the inner side of the connecting enclosure.

10. The insect-proof ventilation device for a granary as claimed in claim 1, characterized in that: A limiting sleeve is arranged on the connecting plate, and two ends of the frame are inserted into the limiting sleeve.

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