Air supply device for agricultural greenhouse

Abstract

The utility model relates to the technical field of greenhouse air supply devices, and discloses an agricultural greenhouse air supply device which comprises an air supply box and a fan, the output end of the fan is connected with the air supply box, a cover plate is arranged on one side wall of the air supply box, and clamping assemblies used for limiting the cover plate are installed on the two side walls of the air supply box respectively. A lining pipe and a fixing base are installed on the outer wall of the top of the air supply box, the lining pipe is located on one side of the fixing base, the end, where an air pipe is laid, in the agricultural greenhouse is inserted into the lining pipe, then an adjusting bolt is screwed to drive a push plate to move, and a pressing plate can abut against the side wall of the air pipe; by pulling the limiting bottom plate, the limiting bottom plate does not limit the cover plate any more, then the cover plate can be taken down, then the filter cotton plate is pulled out of the limiting side plate, and a new filter cotton plate is clamped with the limiting side plate again. And the filter cotton plate can be conveniently and quickly replaced.

Description

Technical Field

[0001] This utility model relates to the technical field of greenhouse ventilation devices, and in particular to an agricultural greenhouse ventilation device. Background Technology

[0002] Ventilation in agricultural greenhouses is an important technical measure that has many positive effects on the growth of crops inside. In hot weather, ventilation can lower the temperature inside the greenhouse and prevent crops from suffering heat damage. In cold seasons, preheated air can be sent into the greenhouse to raise the temperature inside and provide a warm growing environment for crops.

[0003] To improve air supply efficiency, air supply devices are generally used to supply air into agricultural greenhouses. In order to prevent dust from affecting the air quality inside the greenhouse during the air supply process, the air usually needs to be filtered. However, the filters in the existing technology are not convenient to replace, and the connection between the air supply device and the air pipe in the existing technology is prone to loosening and falling off. The reliability of the device needs to be further improved. Utility Model Content

[0004] The purpose of this utility model is to provide an agricultural greenhouse ventilation device to solve the problems mentioned in the background art, such as the inconvenience of replacing the filter structure and the easy loosening and falling of the air pipe.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an agricultural greenhouse ventilation device, comprising an air supply box and a fan, wherein the output end of the fan is connected to the air supply box, a cover plate is provided on one side wall of the air supply box, and snap-fit ​​components for limiting the cover plate are respectively installed on the two side walls of the air supply box.

[0006] An inner liner and a fixed base are installed on the top outer wall of the air supply box. The inner liner is located on one side of the fixed base. A guide rod is fixedly installed on the fixed base, and a pressure plate is slidably engaged on the guide rod.

[0007] A fixed horizontal plate is installed on the top outer wall of the air supply box, and an adjusting bolt is connected to the fixed horizontal plate. One end of the adjusting bolt is rotatably connected to a push plate.

[0008] As a preferred embodiment, the snap-fit ​​assembly includes a guide support rod located on one side wall of the air supply box, a limiting base plate is slidably snapped onto the guide support rod, and a compression spring is provided on the side wall of the guide support rod.

[0009] As a preferred embodiment, limit side plates are installed on the inner walls of both sides of the air supply box, and filter cotton plates are snapped onto the limit side plates.

[0010] As a preferred embodiment, the side wall of the guide rod is provided with a support spring for spreading the two pressure plates apart.

[0011] As a preferred embodiment, guide shafts are respectively installed on one side wall of the push plate, and the guide shafts are slidably engaged with the fixed cross plate.

[0012] As a preferred embodiment, a heating plate for heating air is provided on the bottom inner wall of the air supply box.

[0013] As a preferred embodiment, the cover plate is provided with a sealing gasket inside.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. By inserting one end of the air pipe laid inside the agricultural greenhouse into the inner lining pipe, and then by turning the adjusting bolt, it drives the push plate to move, so that the pressure plate can press against the side wall of the air pipe, thereby stably fixing one end of the air pipe.

[0016] 2. By pulling the limiting base plate to stop it from limiting the cover plate, the cover plate can be removed. Then, the filter cotton plate is pulled out from the limiting side plate and the new filter cotton plate is re-clamped to the limiting side plate. This device can not only filter the air, but also make it convenient and quick to replace the filter cotton plate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is an exploded view of the present invention.

[0019] Figure 3 This is a schematic diagram of the sealing gasket structure of this utility model.

[0020] Figure 4 This utility model Figure 2 Enlarged diagram of point A in the diagram.

[0021] Figure 5 This utility model Figure 3 Enlarged diagram of point B in the image.

[0022] In the diagram: 1. Air supply box; 2. Cover plate; 3. Snap-fit ​​assembly; 301. Guide support rod; 302. Limiting base plate; 303. Compression spring; 4. Limiting side plate; 5. Filter cotton plate; 6. Inner liner tube; 7. Fixed base; 8. Guide rod; 9. Pressure plate; 10. Push plate; 11. Fixed cross plate; 12. Adjusting bolt; 13. Guide shaft; 14. Support spring; 15. Fan; 16. Sealing gasket; 17. Heating plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figure 1-5 The illustrated agricultural greenhouse ventilation device includes an air supply box 1 and a fan 15. The fan 15 is a centrifugal fan. Gas is thrown out of the impeller under centrifugal force, thereby gaining pressure energy and kinetic energy. The fan 15 can fill the air supply box 1 with air. The output end of the fan 15 is connected to the air supply box 1. Air pipes are laid inside the agricultural greenhouse, and air outlets are opened on the side walls of the air pipes. A cover plate 2 is provided on one side wall of the air supply box 1. Clip-on components 3 for limiting the cover plate 2 are respectively installed on the two side walls of the air supply box 1. An inner lining pipe 6 and a fixed base 7 are installed on the top outer wall of the air supply box 1. The outer diameter of the liner 6 is the same as the inner diameter of the air pipe laid inside the greenhouse. The liner 6 is located on one side of the fixed base 7. A guide rod 8 is fixedly installed on the fixed base 7. A pressure plate 9 is slidably engaged on the guide rod 8. A fixed horizontal plate 11 is installed on the top outer wall of the air supply box 1. An adjusting bolt 12 is connected to the fixed horizontal plate 11. One end of the adjusting bolt 12 is rotatably connected to a push plate 10. When air needs to be supplied to the inside of the greenhouse, first insert one end of the air pipe into the liner 6, then turn the adjusting bolt 12. The adjusting bolt 12 drives the push plate 10 to move, which in turn drives the pressure plate 9 to move. The pressure plate 9 abuts against the side wall of the air pipe, which helps to stably fix one end of the air pipe. The snap-fit ​​assembly 3 includes a guide support rod 301, which is located on one side wall of the air supply box 1. A limiting base plate 302 is slidably snapped onto the guide support rod 301. A compression spring 303 is provided on the side wall of the guide support rod 301. Limiting side plates 4 are respectively installed on the inner walls of both sides of the air supply box 1. Filter cotton plates 5 are snapped onto the limiting side plates 4. After connecting the air pipe inside the greenhouse to the inner lining pipe 6, air is then injected into the air supply box 1 by the fan 15. The air can be filtered by the filter cotton plate 5. When the filter cotton plate 5 needs to be replaced, first pull the limiting base plate 302 so that the limiting base plate 302 no longer limits the cover plate 2. Then remove the cover plate 2, then pull the filter cotton plate 5 out of the limiting side plate 4 and re-clamp the new filter cotton plate 5 to the limiting side plate 4. Finally, place the cover plate 2 on one side of the air supply box 1, and move the limiting base plate 302 through the compression spring 303 so that the limiting base plate 302 can limit the cover plate 2 again, thereby connecting the air supply box 1 and the cover plate 2. Therefore, the device can effectively filter the air and also allows for convenient and quick replacement of the filter cotton plate 5.

[0025] In this embodiment, as Figure 5 As shown, a support spring 14 is provided on the side wall of the guide rod 8 to open the two pressure plates 9. When the push plate 10 retracts, the support spring 14 can drive the two pressure plates 9 to move away from each other, which makes it convenient to remove one end of the air tube and to re-insert the air tube into the inner liner tube 6.

[0026] In this embodiment, as Figure 5 As shown, guide shafts 13 are installed on one side wall of the push plate 10. The guide shafts 13 are slidably engaged with the fixed horizontal plate 11. The guide shafts 13 can guide the push plate 10, which helps to improve the stability of the push plate 10 when it moves.

[0027] In this embodiment, as Figure 2 As shown, a heating plate 17 for heating the air is provided on the bottom inner wall of the air supply box 1. When the weather is cold, the air can be heated by the heating plate 17, thereby increasing the temperature inside the greenhouse.

[0028] In this embodiment, as Figure 3 As shown, a sealing gasket 16 is provided inside the cover plate 2. When the cover plate 2 is connected to the air supply box 1, the sealing gasket 16 can improve the sealing between the cover plate 2 and the air supply box 1, and prevent gas from leaking out from the connection between the two.

[0029] Working principle of this utility model: This utility model is an agricultural greenhouse ventilation device. By inserting one end of the air pipe laid inside the agricultural greenhouse into the inner lining pipe 6, and then by turning the adjusting bolt 12, it drives the push plate 10 to move, which in turn drives the pressure plate 9 to move, so that the pressure plate 9 can abut against the side wall of the air pipe, thereby stably fixing one end of the air pipe.

[0030] Then, the blower 15 inflates the air supply box 1, so that the air is filtered by the filter cotton plate 5 and then delivered to the air pipe. When the filter cotton plate 5 needs to be replaced, the limiting base plate 302 is pulled to stop limiting the cover plate 2, and then the cover plate 2 can be removed. Then the filter cotton plate 5 is pulled out from the limiting side plate 4 and the new filter cotton plate 5 is re-clamped to the limiting side plate 4. Then the cover plate 2 is placed on one side of the air supply box 1, and the limiting base plate 302 is moved by the compression spring 303 to limit the cover plate 2, thereby connecting the air supply box 1 and the cover plate 2. This device can not only filter the air, but also make it convenient and quick to replace the filter cotton plate 5.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An agricultural greenhouse ventilation device, comprising an air supply box (1) and a fan (15), wherein the output end of the fan (15) is connected to the air supply box (1), characterized in that: A cover plate (2) is provided on one side wall of the air supply box (1), and a snap-fit ​​assembly (3) for limiting the cover plate (2) is installed on both sides of the air supply box (1); The air supply box (1) is equipped with an inner liner tube (6) and a fixed base (7) on its top outer wall. The inner liner tube (6) is located on one side of the fixed base (7). A guide rod (8) is fixedly installed on the fixed base (7). A pressure plate (9) is slidably engaged on the guide rod (8). A fixed horizontal plate (11) is installed on the top outer wall of the air supply box (1), and an adjusting bolt (12) is connected to the fixed horizontal plate (11). One end of the adjusting bolt (12) is rotatably connected to a push plate (10).

2. The agricultural greenhouse ventilation device according to claim 1, characterized in that: The snap-fit ​​assembly (3) includes a guide support rod (301), which is located on one side wall of the air supply box (1). A limiting base plate (302) is slidably snapped onto the guide support rod (301), and a compression spring (303) is provided on the side wall of the guide support rod (301).

3. The agricultural greenhouse ventilation device according to claim 1, characterized in that: Limiting side plates (4) are installed on the inner walls of both sides of the air supply box (1), and filter cotton plates (5) are snapped onto the limiting side plates (4).

4. The agricultural greenhouse ventilation device according to claim 1, characterized in that: The guide rod (8) is provided with a support spring (14) for spreading the two pressure plates (9).

5. The agricultural greenhouse ventilation device according to claim 1, characterized in that: Guide shafts (13) are respectively installed on one side wall of the push plate (10), and the guide shafts (13) are slidably engaged with the fixed horizontal plate (11).

6. The agricultural greenhouse ventilation device according to claim 1, characterized in that: A heating plate (17) for heating air is provided on the bottom inner wall of the air supply box (1).

7. The agricultural greenhouse ventilation device according to claim 1, characterized in that: A sealing gasket (16) is provided inside the cover plate (2).

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