Vegetable greenhouse with snow removal structure

Abstract

The utility model relates to the technical field of vegetable greenhouses, specifically a vegetable greenhouse with a snow removal structure, including a vegetable greenhouse body, and a plurality of snow removal components arranged on the outside of the vegetable greenhouse body, the snow removal components including a first U-shaped bracket and a second U-shaped bracket, the tops of the first U-shaped bracket and the second U-shaped bracket are commonly connected with an arc tube, the outer wall of the arc tube is provided with a plurality of air outlets, and the plurality of air outlets are all facing the roof of the vegetable greenhouse body. In the vegetable greenhouse with a snow removal structure, a fan generates an upward airflow, an electric heating network heats the airflow, and the heated air is output from the conical air outlet pipe to the air inlet connecting pipe, and then enters the arc tube from the air inlet connecting pipe, so that the plurality of air outlets output warm air, and the warm air moves toward the roof of the vegetable greenhouse body. Under the action of the warm air, the snow can be melted, thereby achieving the function of snow removal.

Description

Technical Field

[0001] The utility model relates to the technical field of vegetable greenhouses, in particular to a vegetable greenhouse with a snow removal structure. Background Art

[0002] Vegetable greenhouses are agricultural facilities mainly used for growing vegetables and other plants that require greenhouse breeding. They can withstand relatively bad weather, while ensuring the stability of internal temperature and humidity, providing a good planting environment. The main function of vegetable greenhouses is to extend the growing season of plants, allowing crops to grow in seasons that cannot grow outdoors, such as winter. On the other hand, it can also prevent some crop losses caused by weather changes, such as frost damage, heat coiling, etc. Rain and snow often occur in winter. Since greenhouses are generally assembled with frame structures, their bearing capacity is poor. Therefore, if a certain amount of snow accumulates on the top of the greenhouse, there is bound to be a risk of collapse. Therefore, when it snows in winter, the snow on the top of the vegetable greenhouse needs to be cleared.

[0003] The patent with publication number CN212993347U discloses a vegetable greenhouse that is easy to remove snow. In view of the problem that if a certain amount of snow accumulates on the top of the existing greenhouse, there is bound to be a risk of collapse, the following scheme is proposed, which includes a support frame, the top of the support frame is symmetrically rotatably connected to two ceiling frames, and a plurality of tempered glasses are embedded on the support frame and the ceiling frame, and a limit plate is fixedly installed on the top of the support frame, and the two ceiling frames are sealed and fitted with the limit plate. The utility model can drive the two ceiling frames to rotate at the same time by starting the cylinder to increase the inclination angle of the ceiling frame. After that, starting the two driving motors at the same time can drive the two scrapers to move at the same time to scrape off all the snow on the ceiling frame, thereby effectively reducing the load on the greenhouse and avoiding the problem of collapse of the greenhouse. In addition, no manual operation is required when removing the snow, thereby greatly reducing the work intensity.

[0004] Although the above-mentioned existing technology can clear the snow in the vegetable greenhouse, its structure for clearing the snow is very complicated, and requires a lot of linkage structures, and needs to reciprocate to drive two scrapers to move. The reciprocating scrapers can easily cause wear and tear on the roof of the vegetable greenhouse, and even cause damage to the roof of the vegetable greenhouse, which is not conducive to long-term use. In view of this, we propose a vegetable greenhouse with a snow removal structure. Utility Model Content

[0005] The purpose of the utility model is to provide a vegetable greenhouse with a snow removal structure to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A vegetable greenhouse with a snow removal structure comprises a vegetable greenhouse body and a plurality of snow removal components arranged outside the vegetable greenhouse body, wherein the plurality of snow removal components are arranged equidistantly along the length direction of the vegetable greenhouse body, and the number of snow removal components is selected according to the length of the vegetable greenhouse body, so as to adapt to vegetable greenhouse bodies of different specifications;

[0008] The snow removal component comprises a first U-shaped bracket and a second U-shaped bracket, the second U-shaped bracket is located directly behind the first U-shaped bracket, and the tops of the first U-shaped bracket and the second U-shaped bracket are commonly connected with an arc tube, the shape and size of the arc tube can be replaced according to the specifications of the vegetable greenhouse body, and it is only necessary to ensure that the arc tube is located above the roof of the vegetable greenhouse body, and the outer wall of the arc tube is provided with a plurality of air outlets, and the plurality of air outlets are all directed toward the roof of the vegetable greenhouse body, and the warm air entering the arc tube is output from the plurality of air outlets and moves toward the roof of the vegetable greenhouse body. Under the action of the warm air, the accumulated snow can be melted, thereby achieving the effect of snow removal, and the snow removal component can be used during snowing to effectively avoid snow accumulation on the roof of the vegetable greenhouse body, thereby ensuring the safety of the vegetable greenhouse body on snowy days;

[0009] An air inlet connecting pipe is provided at the air inlet end of the arc-shaped tube, a circular hole is provided in the middle of the top of the first U-shaped bracket, a hot air generating component is provided on the top of the inner wall of the first U-shaped bracket, and the hot air generating component includes a conical air outlet pipe fixedly connected to the first U-shaped bracket, the air inlet connecting pipe passes through the circular hole and is connected to the conical air outlet pipe, a circular tube is provided at the bottom of the conical air outlet pipe, a fan and an electric heating net are provided in the circular tube, the electric heating net is located above the fan, the fan and the electric heating net are both connected to an external power supply to work, the fan generates an upward airflow, the electric heating net heats the airflow, and the heated air is output from the conical air outlet pipe to the air inlet connecting pipe, and then enters the arc-shaped tube from the air inlet connecting pipe, so that multiple air outlets output warm air.

[0010] Preferably, the arc tube is located above the vegetable greenhouse body, and the outer wall of the air inlet end of the arc tube is provided with a first mounting plate, which is detachably connected to the top of the first U-shaped bracket by bolts, so that the air inlet end of the arc tube is installed on the top of the first U-shaped bracket.

[0011] Preferably, a second mounting plate is provided at the tail end of the arc tube, and the second mounting plate is detachably connected to the top of the second U-shaped bracket by bolts, so that the tail end of the arc tube is installed on the top of the second U-shaped bracket, which is convenient for staff to disassemble and assemble the arc tube.

[0012] Preferably, an annular groove is provided on the inner wall of the output end of the conical air outlet pipe, a rubber sealing gasket is provided in the annular groove, and the outer wall of the air inlet connecting pipe fits tightly with the inner wall of the rubber sealing gasket to ensure the sealing of the connection between the air inlet connecting pipe and the conical air outlet pipe.

[0013] Preferably, a dustproof part is provided at the bottom of the circular tube, and the dustproof part includes a dustproof box connected to the circular tube, and the left and right sides of the dustproof box are respectively fixedly connected to the left and right sides of the inner wall of the first U-shaped bracket, and a plurality of strip-shaped air inlet holes are opened at the bottom of the dustproof box. When the fan is working, outside air enters the dustproof box from the plurality of strip-shaped air inlet holes.

[0014] Preferably, a first U-shaped positioning plate is provided at the lower middle part on both sides of the inner wall of the dustproof box, and a removable first filter screen plate is provided between the two first U-shaped positioning plates to facilitate the fixing of the position of the first filter screen plate. A first rectangular opening for the first filter screen plate to pass through is provided at the lower middle part of the front side of the dustproof box, and a first frame-shaped rubber pad is provided on the outer wall of the front side of the first filter screen plate. The outer wall of the first frame-shaped rubber pad is tightly fitted with the inner wall of the first rectangular opening to ensure the sealing of the connection between the first filter screen plate and the first rectangular opening.

[0015] Preferably, a second U-shaped positioning plate is provided in the middle and upper parts of the left and right sides of the inner wall of the dustproof box, and a removable second filter screen plate is provided between the two second U-shaped positioning plates to facilitate the fixing of the position of the second filter screen plate. A second rectangular opening for the second filter screen plate to pass through is opened in the middle and upper part of the front side of the dustproof box, and a second frame-shaped rubber pad is provided on the outer wall of the front side of the second filter screen plate. The outer wall of the second frame-shaped rubber pad is tightly fitted with the inner wall of the second rectangular opening to ensure the sealing of the connection between the second filter screen plate and the second rectangular opening.

[0016] Preferably, the filter hole size of the first filter plate is larger than the filter hole size of the second filter plate. The first filter plate performs a first filter on the air entering the dustproof box to remove larger particles in the air, and the second filter plate performs a second filter on the air entering the dustproof box to remove smaller particles in the air, thereby preventing dust from adhering to the electric heating net and clogging the interior of the arc tube. The front sides of the first filter plate and the second filter plate are commonly connected to a rectangular plate, and a handle is provided on the front side of the rectangular plate to facilitate the staff to take the first filter plate and the second filter plate out of the dustproof box.

[0017] Preferably, a thermostat is provided at the top of the right side of the inner wall of the first U-shaped bracket, and the temperature probe of the thermostat is located in the conical air outlet duct. The fan and the electric heating network are electrically connected to the thermostat through wires, respectively, to control the temperature of the warm air to avoid damage to the roof of the vegetable greenhouse body due to excessive temperature.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. For the vegetable greenhouse with snow removal structure, the number of snow removal components is selected according to the length of the vegetable greenhouse body, so as to adapt to vegetable greenhouse bodies of different specifications and can be used for a long time. The fan generates an upward airflow, and the electric heating network heats the airflow. The heated air is output from the conical air outlet pipe to the air inlet connecting pipe, and then enters the arc pipe from the air inlet connecting pipe, so that multiple air outlets output warm air, and the warm air moves toward the roof of the vegetable greenhouse body. Under the action of the warm air, the snow can be melted, thereby achieving the purpose of snow removal, and the snow removal component can be used during snowing, effectively avoiding snow accumulation on the roof of the vegetable greenhouse body, and ensuring the safety of the vegetable greenhouse body on snowy days.

[0020] 2. In the vegetable greenhouse with a snow removal structure, a first mounting plate is provided on the outer wall of the air inlet end of the arc tube, and the first mounting plate is detachably connected to the top of the first U-shaped bracket by bolts. A second mounting plate is provided at the tail end of the arc tube, and the second mounting plate is detachably connected to the top of the second U-shaped bracket by bolts, so that the staff can disassemble and assemble the arc tube conveniently.

[0021] 3. In the vegetable greenhouse with snow removal structure, the outer wall of the air inlet connecting pipe fits tightly with the inner wall of the rubber sealing gasket to ensure the sealing of the connection between the air inlet connecting pipe and the conical air outlet pipe.

[0022] 4. In the vegetable greenhouse with snow removal structure, when the fan is working, the outside air enters the dustproof box from multiple strip-shaped air inlet holes, and the first filter plate performs the first filtering on the air entering the dustproof box to remove larger particles in the air. The second filter plate performs the second filtering on the air entering the dustproof box to remove smaller particles in the air, thereby preventing dust from adhering to the electric heating net and preventing the inside of the arc tube from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall first-view structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0025] Figure 3 This is a schematic diagram of the structure of the snow removal component in the utility model;

[0026] Figure 4 It is a partial structural schematic diagram of the snow removal component in the utility model;

[0027] Figure 5 It is a cross-sectional structural diagram of the hot air generating component and the dustproof component in the utility model;

[0028] Figure 6 It is a partial structural schematic diagram of the dustproof part in the utility model;

[0029] Figure 7 It is a schematic diagram of the assembly structure of the second U-shaped bracket and the arc tube in the utility model.

[0030] In the figure: 1, vegetable greenhouse body; 2, snow removal assembly; 20, first U-shaped bracket; 200, circular hole; 21, second U-shaped bracket; 22, arc tube; 220, first mounting plate; 221, second mounting plate; 222, air inlet connecting pipe; 223, air outlet; 23, hot air generating element; 230, circular tube; 231, fan; 232, electric heating net; 233, conical air outlet pipe; 2330, annular groove; 2 34. Rubber sealing gasket; 24. Dustproof part; 240. Dustproof box; 2400. Strip air inlet; 2401. First rectangular opening; 2402. Second rectangular opening; 241. First filter plate; 242. Second filter plate; 243. Rectangular plate; 244. Handle; 245. First frame-shaped rubber pad; 246. Second frame-shaped rubber pad; 247. First U-shaped positioning plate; 248. Second U-shaped positioning plate; 25. Thermostat. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] See also Figure 1-Figure 7 , the utility model provides a technical solution:

[0034] A vegetable greenhouse with a snow removal structure comprises a vegetable greenhouse body 1, and a plurality of snow removal components 2 arranged outside the vegetable greenhouse body 1, wherein the plurality of snow removal components 2 are arranged equidistantly along the length direction of the vegetable greenhouse body 1, and the number of the snow removal components 2 is selected according to the length of the vegetable greenhouse body 1, so as to adapt to vegetable greenhouse bodies 1 of different specifications;

[0035] The snow removal component 2 includes a first U-shaped bracket 20 and a second U-shaped bracket 21, the second U-shaped bracket 21 is located directly behind the first U-shaped bracket 20, and the tops of the first U-shaped bracket 20 and the second U-shaped bracket 21 are commonly connected with an arc tube 22, the shape and size of the arc tube 22 can be replaced according to the specifications of the vegetable greenhouse body 1, and it is only necessary to ensure that the arc tube 22 is located above the roof of the vegetable greenhouse body 1, and the outer wall of the arc tube 22 is provided with a plurality of air outlets 223, and the plurality of air outlets 223 are all facing the roof of the vegetable greenhouse body 1, and the warm air entering the arc tube 22 is output from the plurality of air outlets 223 and moves toward the roof of the vegetable greenhouse body 1, and the warm air can melt the snow under the action of the warm air, thereby achieving the effect of snow removal, and the snow removal component 2 can be used in the process of snowing, effectively avoiding the generation of snow on the roof of the vegetable greenhouse body 1, and ensuring the safety of the vegetable greenhouse body 1 on snowy days;

[0036] The air inlet end of the arc-shaped tube 22 is provided with an air inlet connecting pipe 222, a circular hole 200 is opened in the middle of the top of the first U-shaped bracket 20, a hot air generating member 23 is provided at the top of the inner wall of the first U-shaped bracket 20, and the hot air generating member 23 includes a conical air outlet pipe 233 fixedly connected to the first U-shaped bracket 20, the air inlet connecting pipe 222 passes through the circular hole 200 and is connected to the conical air outlet pipe 233, and a circular tube 230 is provided at the bottom of the conical air outlet pipe 233. A fan 231 and an electric heating network 232 are provided in the tube 230. The electric heating network 232 is located above the fan 231. Both the fan 231 and the electric heating network 232 are connected to an external power supply to work. The fan 231 generates an upward airflow, and the electric heating network 232 heats the airflow. The heated air is output from the conical air outlet pipe 233 to the air inlet connecting pipe 222, and then enters the arc tube 22 from the air inlet connecting pipe 222, so that multiple air outlet holes 223 output warm air.

[0037] In this embodiment, the arc tube 22 is located above the vegetable greenhouse body 1, and the outer wall of the air inlet end of the arc tube 22 is provided with a first mounting plate 220. The first mounting plate 220 is detachably connected to the top of the first U-shaped bracket 20 by bolts, so that the air inlet end of the arc tube 22 is installed on the top of the first U-shaped bracket 20.

[0038] Specifically, a second mounting plate 221 is provided at the tail end of the arc tube 22, and the second mounting plate 221 is detachably connected to the top of the second U-shaped bracket 21 by bolts, so that the tail end of the arc tube 22 is installed on the top of the second U-shaped bracket 21, which is convenient for staff to disassemble and assemble the arc tube 22.

[0039] Furthermore, an annular groove 2330 is provided on the inner wall of the output end of the conical air outlet pipe 233, and a rubber sealing gasket 234 is provided in the annular groove 2330. The outer wall of the air intake connecting pipe 222 fits tightly with the inner wall of the rubber sealing gasket 234 to ensure the sealing of the connection between the air intake connecting pipe 222 and the conical air outlet pipe 233.

[0040] Furthermore, a dustproof part 24 is provided at the bottom of the circular tube 230, and the dustproof part 24 includes a dustproof box 240 connected to the circular tube 230. The left and right sides of the dustproof box 240 are respectively fixedly connected to the left and right sides of the inner wall of the first U-shaped bracket 20. A plurality of strip-shaped air inlet holes 2400 are provided at the bottom of the dustproof box 240. When the fan 231 is working, outside air enters the dustproof box 240 from the plurality of strip-shaped air inlet holes 2400.

[0041] Furthermore, first U-shaped positioning plates 247 are provided at the lower and middle parts on both sides of the inner wall of the dustproof box 240, and a removable first filter plate 241 is provided between the two first U-shaped positioning plates 247 to facilitate the fixing of the position of the first filter plate 241. A first rectangular opening 2401 for the first filter plate 241 to pass through is provided at the lower and middle part of the front side of the dustproof box 240, and a first frame-shaped rubber pad 245 is provided on the outer wall of the front side of the first filter plate 241. The outer wall of the first frame-shaped rubber pad 245 is tightly fitted with the inner wall of the first rectangular opening 2401 to ensure the sealing of the connection between the first filter plate 241 and the first rectangular opening 2401.

[0042] Furthermore, a second U-shaped positioning plate 248 is provided in the middle and upper parts of the left and right sides of the inner wall of the dustproof box 240, and a removable second filter plate 242 is provided between the two second U-shaped positioning plates 248 to facilitate the fixing of the position of the second filter plate 242. A second rectangular opening 2402 for the second filter plate 242 to pass through is opened in the middle and upper part of the front side of the dustproof box 240, and a second frame-shaped rubber pad 246 is provided on the outer wall of the front side of the second filter plate 242. The outer wall of the second frame-shaped rubber pad 246 fits tightly with the inner wall of the second rectangular opening 2402 to ensure the sealing of the connection between the second filter plate 242 and the second rectangular opening 2402.

[0043] Furthermore, the filter hole size of the first filter plate 241 is larger than the filter hole size of the second filter plate 242. The first filter plate 241 performs a first filter on the air entering the dustproof box 240 to remove larger particles in the air. The second filter plate 242 performs a second filter on the air entering the dustproof box 240 to remove smaller particles in the air, thereby preventing dust from adhering to the electric heating net 232 and clogging the interior of the arc tube 22. The front sides of the first filter plate 241 and the second filter plate 242 are commonly connected to a rectangular plate 243, and a handle 244 is provided on the front side of the rectangular plate 243 to facilitate the staff to take the first filter plate 241 and the second filter plate 242 out of the dustproof box 240.

[0044] Furthermore, a thermostat 25 is provided at the top of the right side of the inner wall of the first U-shaped bracket 20. The temperature probe of the thermostat 25 is located in the conical air outlet duct 233. The fan 231 and the electric heating network 232 are electrically connected to the thermostat 25 through wires, respectively, for controlling the temperature of the warm air to avoid damage to the roof of the vegetable greenhouse body 1 due to excessive temperature.

[0045] When the vegetable greenhouse with snow removal structure of this embodiment is in use, the fan 231 generates an upward airflow, and the outside air enters the dustproof box 240 from the multiple strip-shaped air inlet holes 2400. The first filter plate 241 performs a first filter on the air entering the dustproof box 240 to remove larger particles in the air. The second filter plate 242 performs a second filter on the air entering the dustproof box 240 to remove smaller particles in the air, thereby preventing dust from adhering to the electric heating net 232 and preventing the interior of the arc tube 22 from being blocked. The heat network 232 heats the air flow, and the heated air is output from the conical air outlet pipe 233 to the air intake connecting pipe 222, and then enters the arc tube 22 from the air intake connecting pipe 222, so that the multiple air outlet holes 223 output warm air, and the warm air moves toward the roof of the vegetable greenhouse body 1. Under the action of the warm air, the accumulated snow can be melted, thereby achieving the purpose of snow removal, and the snow removal component 2 can be used during snowing to effectively avoid snow accumulation on the roof of the vegetable greenhouse body 1, thereby ensuring the safety of the vegetable greenhouse body 1 on snowy days.

[0046] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A vegetable greenhouse with a snow removal structure, comprising a vegetable greenhouse body (1), and a plurality of snow removal components (2) arranged outside the vegetable greenhouse body (1), wherein the plurality of snow removal components (2) are arranged equidistantly along the length direction of the vegetable greenhouse body (1), and characterized in that: The snow removal assembly (2) comprises a first U-shaped bracket (20) and a second U-shaped bracket (21), the second U-shaped bracket (21) being located directly behind the first U-shaped bracket (20), the tops of the first U-shaped bracket (20) and the second U-shaped bracket (21) being connected to an arc-shaped tube (22), the outer wall of the arc-shaped tube (22) being provided with a plurality of air outlet holes (223), the plurality of air outlet holes (223) all facing the roof of the vegetable greenhouse body (1), the air inlet end of the arc-shaped tube (22) being provided with an air inlet connecting tube (222), the middle part of the top of the first U-shaped bracket (20) being provided with a plurality of air outlet holes (223), and the plurality of air outlet holes (223) being provided with an air inlet connecting tube (222). A circular hole (200) is provided, a hot air generating member (23) is provided at the top of the inner wall of the first U-shaped bracket (20), the hot air generating member (23) comprises a conical air outlet pipe (233) fixedly connected to the first U-shaped bracket (20), the air inlet connecting pipe (222) passes through the circular hole (200) and is connected to the conical air outlet pipe (233), a circular tube (230) is provided at the bottom of the conical air outlet pipe (233), a fan (231) and an electric heating net (232) are provided in the circular tube (230), and the electric heating net (232) is located above the fan (231).

2. The vegetable greenhouse with snow removal structure according to claim 1, characterized in that: The arc-shaped tube (22) is located above the vegetable greenhouse body (1); the outer wall of the air inlet end of the arc-shaped tube (22) is provided with a first mounting plate (220); the first mounting plate (220) is detachably connected to the top of the first U-shaped bracket (20) by bolts.

3. The vegetable greenhouse with snow removal structure according to claim 1, characterized in that: A second mounting plate (221) is provided at the rear end of the arc-shaped tube (22), and the second mounting plate (221) is detachably connected to the top of the second U-shaped bracket (21) via bolts.

4. The vegetable greenhouse with snow removal structure according to claim 1, characterized in that: An annular groove (2330) is provided on the inner wall of the output end of the conical air outlet pipe (233), a rubber sealing gasket (234) is provided in the annular groove (2330), and the outer wall of the air intake connecting pipe (222) is tightly fitted with the inner wall of the rubber sealing gasket (234).

5. The vegetable greenhouse with snow removal structure according to claim 1, characterized in that: A dustproof part (24) is provided at the bottom of the circular tube (230), and the dustproof part (24) comprises a dustproof box (240) connected to the circular tube (230), and the left and right sides of the dustproof box (240) are respectively fixedly connected to the left and right sides of the inner wall of the first U-shaped bracket (20), and a plurality of strip-shaped air inlet holes (2400) are provided at the bottom of the dustproof box (240).

6. The vegetable greenhouse with snow removal structure according to claim 5, characterized in that: A first U-shaped positioning plate (247) is provided at the lower middle part of the left and right sides of the inner wall of the dustproof box (240); a detachable first filter screen plate (241) is provided between the two first U-shaped positioning plates (247); a first rectangular opening (2401) for the first filter screen plate (241) to pass through is provided at the lower middle part of the front side of the dustproof box (240); a first frame-shaped rubber pad (245) is provided at the outer wall of the front side of the first filter screen plate (241); the outer wall of the first frame-shaped rubber pad (245) is tightly fitted with the inner wall of the first rectangular opening (2401).

7. The vegetable greenhouse with snow removal structure according to claim 6, characterized in that: A second U-shaped positioning plate (248) is provided at the middle and upper parts of the left and right sides of the inner wall of the dustproof box (240), and a detachable second filter screen plate (242) is provided between the two second U-shaped positioning plates (248). A second rectangular opening (2402) for the second filter screen plate (242) to pass through is provided at the middle and upper part of the front side of the dustproof box (240), and a second frame-shaped rubber pad (246) is provided on the outer wall of the front side of the second filter screen plate (242), and the outer wall of the second frame-shaped rubber pad (246) is tightly fitted with the inner wall of the second rectangular opening (2402).

8. The vegetable greenhouse with snow removal structure according to claim 7, characterized in that: The filter hole size of the first filter screen plate (241) is larger than the filter hole size of the second filter screen plate (242); the front sides of the first filter screen plate (241) and the second filter screen plate (242) are connected to a rectangular plate (243); and a handle (244) is provided on the front side of the rectangular plate (243).

9. The vegetable greenhouse with snow removal structure according to claim 1, characterized in that: A temperature controller (25) is provided at the top of the right side of the inner wall of the first U-shaped bracket (20), and a temperature probe of the temperature controller (25) is located in the conical air outlet pipe (233).

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