Photovoltaic agricultural technology greenhouse roof cleaning device

Abstract

The application discloses a photovoltaic agricultural technology greenhouse roof cleaning device, which comprises a support and a photovoltaic panel arranged on the top of the support, the top end and the bottom end of the support are provided with guide plates, a rotating shaft and a sliding rod are slidably arranged on the top of the photovoltaic panel between the two guide plates, first dust baffle and second dust baffle are arranged on the rotating shaft and the sliding rod respectively, and a brush is arranged on the side of the sliding rod close to the rotating shaft; a limiting assembly matched with the guide plates is arranged on the sliding rod, and the rotating shaft and the sliding rod are connected through a traction assembly; the brush on the sliding rod is moved synchronously in the sliding process, so that the dust on the top of the photovoltaic panel is cleaned, the raised dust is arranged between the first dust baffle and the second dust baffle, when the sliding rod gradually approaches the rotating shaft, the second dust baffle gradually approaches the first dust baffle and compresses the space of the two assemblies, so that the raised dust is blown downward between the first dust baffle and the second dust baffle.

Description

Technical Field

[0001] This invention relates to the field of greenhouse cleaning technology, and in particular to a roof cleaning device for photovoltaic agricultural greenhouses. Background Technology

[0002] With the development of the photovoltaic industry, the installed capacity of solar power plants worldwide is constantly increasing. Solar power plants are receiving more and more attention from countries due to their advantages such as being clean and pollution-free and requiring no human intervention. Photovoltaic agricultural greenhouses are a comprehensive system engineering project that uses the roof of agricultural greenhouses to generate solar power and develops efficient ecological agriculture inside the greenhouses.

[0003] Chinese invention patent CN106513353A discloses a device for cleaning photovoltaic greenhouse modules, including a frame, a cleaning system extending from the top to the bottom of the greenhouse, a walking system, and a guide system located at the top of the frame. Guided by the guide system, the walking system drives the frame and the cleaning system to move laterally across the photovoltaic greenhouse. The cleaning system cleans the photovoltaic modules within the moving range. This invention's device for cleaning photovoltaic greenhouse modules is stable during operation, energy-efficient, and achieves optimal cleaning results on uneven surfaces of the photovoltaic greenhouse. Its modular design allows for the use of double-glass greenhouses of varying widths and lengths. While fulfilling its functional requirements, it features a simple structure, reliable operation, and relatively low cost, making it suitable for harsh outdoor working environments.

[0004] The aforementioned device cleans the photovoltaic panels on the top of the greenhouse using brushes on the outside of the brush drive shaft. However, in actual use, when the brush bristles move on the top of the photovoltaic panels, they stir up dust. The device lacks a structure to capture and restrict the dust, causing the dust to be directly released into the air, which is not conducive to protecting the surrounding environment. Furthermore, the brush drive shaft is exposed to the external environment, and if mud adheres to its top, it can easily scratch the surface of the photovoltaic panels during rotation.

[0005] Therefore, it is necessary to provide a photovoltaic agricultural greenhouse roof cleaning device to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a roof cleaning device for photovoltaic agricultural greenhouses, which solves the problem mentioned in the background art that existing equipment cleans photovoltaic panels with brushes, but dust is stirred up during the cleaning process. Existing devices lack a structure to capture and restrict the dust, causing the dust to be directly released into the air, which is not conducive to the protection of the surrounding environment.

[0007] Based on the above ideas, the present invention provides the following technical solution: including a bracket and a photovoltaic panel disposed on the top of the bracket, the top and bottom of the bracket are provided with guide plates, the top of the photovoltaic panel is slidably disposed between the two guide plates with a rotating shaft and a sliding rod, the rotating shaft and the sliding rod are respectively provided with a first dust baffle and a second dust baffle, and a brush is installed on the side of the sliding rod near the rotating shaft;

[0008] The slide rod is equipped with a limiting component that cooperates with the guide plate. The rotating shaft and the slide rod are connected by a traction component. When the rotating shaft moves away from the slide rod, it drives the traction component to unfold and releases the locking relationship between the slide rod and the guide plate through the force of the traction component on the limiting component, so that the slide rod gradually approaches the rotating shaft.

[0009] As a further embodiment of the present invention: both ends of the outer side of the rotating shaft are rotatably provided with collars, the collars are provided on the outer side of the bracket, and a connecting cover is fixedly connected between the two collars. The connecting cover is rotatably provided on the outer side of the rotating shaft. The bottom end of the first dust baffle is fixedly connected to the connecting cover, and the bottom end of the second dust baffle is hinged to the slide rod. The ends of the first dust baffle and the second dust baffle that are close to each other are hinged together.

[0010] As a further aspect of the present invention: the limiting component includes a fixed frame fixedly connected to both sides of the top of the slide rod. A limiting block is slidably connected inside the fixed frame, and one end of the limiting block extends toward the guide plate and passes through the fixed frame. The limiting block is slidably connected to the fixed frame. A groove is provided at the end of the limiting block near the guide plate. A second limiting plate is slidably connected inside the groove. A first limiting plate is hinged to the end of the second limiting plate away from the limiting block. A second spring is provided at the bottom end of the second limiting plate in the groove. A top block is slidably provided on the side of the fixed frame near the rotating shaft. One end of the top block passes through the fixed frame and extends into its inner cavity. The top surface of the end of the top block extending into the fixed frame is set as an inclined surface. The end surface of the top block placed inside the fixed frame extends outward to form a protrusion. A connecting plate is fixedly connected to the end of the top block placed outside the fixed frame. A second magnet and a first magnet are fixed on the opposite sides of the connecting plate and the fixed frame, respectively. The ends of the first magnet and the second magnet that are close to each other have different magnetic poles.

[0011] As a further aspect of the present invention: a limiting groove is formed on the side of the guide plate near the limiting block, and a plurality of protrusions that engage with the first limiting plate are uniformly arranged on the side wall of the limiting groove.

[0012] As a further aspect of the present invention: the traction assembly includes sliders rotatably sleeved on both ends of the outer side of the rotating shaft. The sliders are in contact with the bottom surface of the guide plate. A pull rope is fixedly connected to the side of the slider near the slide rod. The end of the pull rope away from the slider passes through the fixed frame and extends into its inner cavity. The pull rope is slidably connected to the fixed frame. A baffle is slidably arranged inside the fixed frame below the top block. A first spring is provided at the bottom end of the baffle. The end of the pull rope extending into the fixed frame is fixedly connected to the bottom surface of the baffle. A connecting rope is fixedly connected between the baffle and the limiting block.

[0013] As a further aspect of the present invention: a baffle strip is attached to the side of the slide rod away from the rotating shaft, the top end of the baffle strip is attached to the slide rod, and the bottom end of the baffle strip overlaps the top of the photovoltaic panel. A dust-blocking strip is provided near the top between the first dust-blocking plate and the second dust-blocking plate. The dust-blocking strip is triangular, and the top two sides of the dust-blocking strip are respectively attached to the bottom surfaces of the first dust-blocking plate and the second dust-blocking plate.

[0014] As a further aspect of the present invention: a sleeve is fixedly provided at the bottom of the dustproof belt, and multiple receiving chambers are provided inside the sleeve, with steel balls provided in the receiving chambers.

[0015] As a further aspect of the present invention: both ends of the pull rope are fixedly fitted with rope sleeves, and a fixed rope is fixedly connected between the two rope sleeves.

[0016] As a further aspect of the present invention: a protective pad is fitted on the outer side of the rotating shaft, the protective pad is made of rubber material, and the rotating shaft is in contact with the photovoltaic panel; the sliding rod is positioned above the photovoltaic panel and a gap is provided between it and the photovoltaic panel.

[0017] As a further aspect of the present invention: the first limiting plate and the second limiting plate are hinged together by a hinge, and the hinge is disposed on the side of the first limiting plate near the rotating shaft.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: During the sliding process of the slide bar, the brush on it can be moved synchronously to clean the dust on the top of the photovoltaic panel. The dust raised is placed between the first dust baffle and the second dust baffle. When the slide bar gradually approaches the rotating shaft, the second dust baffle gradually approaches the first dust baffle and compresses the space between the two components, so that the raised dust is blown downward between the first dust baffle and the second dust baffle. When the slide bar and the rotating shaft approach each other, the slide bar and the guide plate are locked again by the limiting component. At this time, the rotating shaft continues to move, which can unfold the first dust baffle and the second dust baffle, which is beneficial for the next use. Repeating the above operation can clean the dust on the top of the photovoltaic panel, and the raised dust is confined between the first dust baffle and the second dust baffle and will not drift into the environment, which is more environmentally friendly. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the connection structure between the stop bar and the slide bar of the present invention;

[0022] Figure 3 This is a schematic diagram of the dust-blocking belt structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the connecting cover and collar structure of the present invention;

[0024] Figure 5 This is a three-dimensional structural diagram of the limiting component of the present invention;

[0025] Figure 6 This is a schematic diagram of the slide bar and brush structure of the present invention;

[0026] Figure 7 This is the present invention. Figure 2 A magnified structural diagram at point A;

[0027] Figure 8 This is the present invention. Figure 6 A magnified structural diagram at point B;

[0028] Figure 9 This is a cross-sectional view of the limiting component and the traction component of the present invention;

[0029] Figure 10 This is a schematic diagram of the fixing rope structure of the present invention;

[0030] Figure 11 This is a schematic diagram of the connection structure between the dustproof belt and the sleeve of the present invention.

[0031] In the diagram: 1. Bracket; 2. Guide plate; 3. Guide groove; 4. Connecting shaft; 5. First guide block; 6. Second guide block; 7. Slide rod; 8. Stop bar; 9. Support plate; 10. Second dust baffle; 11. First dust baffle; 12. Motor; 13. Rack; 14. Connecting cover; 15. Slider; 16. Collar; 17. Pull rope; 18. Gear; 19. Fixing frame; 20. Dust baffle belt; 21. Rotating shaft; 22. Limiting block; 23. First limiting plate; 24. Second limiting plate; 25. Top block; 26. First magnet; 27. Connecting plate; 28. Brush; 29. ​​Baffle; 30. Connecting rope; 31. Second magnet; 32. First spring; 33. Protrusion; 34. Fixing rope; 35. Second spring; 36. Protrusion; 37. Sleeve. Detailed Implementation

[0032] like Figure 1-4 As shown, a photovoltaic agricultural greenhouse roof cleaning device includes a support frame 1 installed on the roof of the greenhouse to support the greenhouse. A photovoltaic panel is installed on the support frame 1, and a cleaning device is installed on the photovoltaic panel to clean the dust accumulated on the photovoltaic panel so that the photovoltaic panel can be used normally.

[0033] Specifically, U-shaped guide plates 2 are fixedly installed at the top and bottom of the bracket 1, and the cleaning device is slidably installed between the two guide plates 2. The cleaning device mainly includes a rotating shaft 21 and a sliding rod 7 arranged opposite to each other. The rotating shaft 21 and the sliding rod 7 are both movably installed on the top of the photovoltaic panel. In actual use, a protective pad can be fitted on the outside of the rotating shaft 21. The protective pad can be made of rubber material, and the rotating shaft 21 is in contact with the photovoltaic panel. The sliding rod 7 is set above the photovoltaic panel and there is a gap between it and the photovoltaic panel. A first dust baffle 11 is movably installed on the rotating shaft 21, and a second dust baffle 10 is hinged to the outside of the sliding rod 7. The first dust baffle 11 and the second dust baffle 10 are arranged in a V-shape and their ends are hinged together. A limiting component that cooperates with the guide plate 2 is provided on the sliding rod 7. The rotating shaft 21 and the sliding rod 7 are connected by a traction component. A brush 28 is installed on the side of the sliding rod 7 near the rotating shaft 21.

[0034] Initially, the rotating shaft 21 and the sliding rod 7 are close to each other. During use, the rotating shaft 21 moves away from the sliding rod 7, thereby causing the traction component to unfold. As the rotating shaft 21 continues to move, the traction component extends under its own elasticity, and the force exerted by the traction component on the limiting component releases the locking relationship between the sliding rod 7 and the guide plate 2. At this time, under the pulling force of the traction component, the sliding rod 7 can be moved quickly towards the rotating shaft 21. During the sliding of the sliding rod 7, the brush 28 on it can be moved simultaneously to clean the dust on the top of the photovoltaic panel. The dust that is raised is placed between the first dust baffle 11 and the second dust baffle 10. As the sliding rod 7 gradually approaches the rotating shaft 21, the second dust baffle 10 gradually approaches the first dust baffle 11 and compresses the space between the two components, causing the dust that is raised to be blown downwards between the first dust baffle 11 and the second dust baffle 10. When the sliding rod 7 and the rotating shaft 21 approach each other, the sliding rod 7 and the guide plate 2 are locked again by the limiting component. At this time, the rotating shaft 21 continues to move, which can unfold the first dust baffle 11 and the second dust baffle 10, which is beneficial for the next use. Therefore, repeating the above operation can clean the dust on the top of the photovoltaic panel, and the dust that is raised is confined between the first dust baffle 11 and the second dust baffle 10 and will not drift into the environment, which is more environmentally friendly.

[0035] Specifically, collars 16 are rotatably provided at both ends of the outer side of the rotating shaft 21. The collars 16 are located on the outer side of the bracket 1, and a connecting cover 14 is fixedly connected between the two collars 16. The connecting cover 14 is arc-shaped and matches the rotating shaft 21, so that the connecting cover 14 is rotatably located on the outer side of the rotating shaft 21. The bottom end of the first dust baffle 11 is fixedly connected to the connecting cover 14. In addition, the bottom end of the second dust baffle 10 is hinged to the slide rod 7 by a hinge. The first dust baffle 11 and the second dust baffle 10 are also hinged by a hinge, and the hinge is located on the bottom surface of the first dust baffle 11 and the second dust baffle 10.

[0036] like Figure 3-9 As shown in Figure 11, the aforementioned limiting assembly includes a fixed frame 19 fixedly connected to both sides of the top of the slide rod 7. A limiting block 22 is slidably connected within the fixed frame 19. One end of the limiting block 22 extends toward the guide plate 2 and passes through the fixed frame 19, and the limiting block 22 is slidably connected to the fixed frame 19. A groove is provided at the end of the limiting block 22 near the guide plate 2, and a second limiting plate 24 is slidably connected within the groove. A first limiting plate 23 is hinged to the end of the second limiting plate 24 away from the limiting block 22. In specific use, the first... The limiting plate 23 and the second limiting plate 24 can be hinged together by a hinge, and this hinge is set on the side of the first limiting plate 23 near the rotating shaft 21, so that when the side of the first limiting plate 23 near the rotating shaft 21 is pressed, it can rotate itself, and conversely, when the side of the first limiting plate 23 away from the rotating shaft 21 is pressed, it cannot rotate itself. A second spring 35 is provided in the groove at the bottom end of the second limiting plate 24, and the two ends of the second spring 35 are fixed to the bottom surface of the second limiting plate 24 and the bottom surface inside the groove, respectively.

[0037] Furthermore, a top block 25 is slidably disposed on the side of the fixed frame 19 near the rotating shaft 21. Specifically, one end of the top block 25 passes through the fixed frame 19 and extends into its inner cavity. The top surface of the end of the top block 25 extending into the fixed frame 19 is set as an inclined surface, so that when the top block 25 is pressed against the limiting block 22, it can drive the limiting block 22 to slide outward within the fixed frame 19. The end face of the top block 25 placed inside the fixed frame 19 extends outward to form a protrusion 36, which is used to position the limiting block 22. In addition, a connecting plate 27 is fixedly connected to the end of the top block 25 placed outside the fixed frame 19. A second magnet 31 and a first magnet 26 are fixed on the opposite sides of the connecting plate 27 and the fixed frame 19, respectively. The ends of the first magnet 26 and the second magnet 31 that are close to each other have different magnetic poles, so that the two can attract each other.

[0038] Furthermore, a limiting groove is provided on the side of the guide plate 2 near the limiting block 22, and multiple protrusions 33 are evenly arranged on the side wall of the limiting groove. When the first limiting plate 23 is engaged between two adjacent protrusions 33, the slide rod 7 can be limited, so that the slide rod 7 slides in one direction.

[0039] In addition, to prevent the top block 25 from detaching from the fixed frame 19, a through groove can be opened in the fixed frame 19, and the top block 25 slides through this through groove and is connected to the fixed frame 19. A slot is opened on the top wall and bottom wall of the through groove, and a locking block that slides with the slot is fixedly provided on the top surface and bottom surface of the top block 25, thereby preventing the top block 25 from detaching from the fixed frame 19.

[0040] The aforementioned traction assembly includes sliders 15 rotatably sleeved on both ends of the outer side of the rotating shaft 21. The sliders 15 are in contact with the bottom surface of the guide plate 2, and the rotating shaft 21 is rotatably connected to the sliders 15. A pull rope 17 is fixedly connected to the side of the slider 15 near the slide rod 7. The end of the pull rope 17 away from the slider 15 passes through the fixed frame 19 and extends into its inner cavity. The pull rope 17 is slidably connected to the fixed frame 19. A baffle 29 is slidably arranged below the top block 25 inside the fixed frame 19. A first spring 32 is provided at the bottom end of the baffle 29. The first spring 32 is arranged inside the fixed frame 19. The end of the pull rope 17 extending into the fixed frame 19 is fixedly connected to the bottom surface of the baffle 29. A connecting rope 30 is fixedly connected between the baffle 29 and the limiting block 22.

[0041] Furthermore, in actual use, to further seal the first dust baffle 11 and the second dust baffle 10, a baffle strip 8 is attached to the side of the slide rod 7 away from the rotating shaft 21. The baffle strip 8 can be made of materials such as rubber or plastic. Its top end is bonded to the slide rod 7, while its bottom end overlaps the top of the photovoltaic panel to seal the gap between the slide rod 7 and the photovoltaic panel. A dust baffle strip 20 is also installed between the first dust baffle 11 and the second dust baffle 10 near the roof of the greenhouse. The dust-blocking belt 20 is triangular, with its top two sides respectively bonded and fixed to the bottom surfaces of the first dust-blocking plate 11 and the second dust-blocking plate 10. A sleeve 37 is fixedly installed at the bottom of the dust-blocking belt 20. The sleeve 37 can be fixed to the bottom end of the dust-blocking belt 20 by sewing. The sleeve 37 has multiple receiving chambers, and the receiving chambers are equipped with counterweights such as steel balls to increase the tension of the dust-blocking belt 20, so as to seal the ends of the first dust-blocking plate 11 and the second dust-blocking plate 10 near the top of the greenhouse.

[0042] In actual use, when it is necessary to clean the dust on the top of the photovoltaic panel, the rotating shaft 21 is driven to move away from the slide bar 7. During the movement of the rotating shaft 21, the pull rope 17 can be gradually unfolded. The pull rope 17 can be made of a material with good elasticity, such as rubber. When the pull rope 17 is straightened and the rotating shaft 21 continues to move, the pull rope 17 will be pulled further, thus giving the pull rope 17 an elastic force. At this time, the pull rope 17 can drive the baffle 29 to overcome the force of the first spring 32 and slide downward in the fixed frame 19 and abut against the protrusion 36 on the top block 25. During this process, the pressure of the limiting block 22 on the top block 25 can drive the top block 25 to slide outward, while the baffle 29 drives the limiting block 22 to slide into the fixed frame 19 through the connecting rope 30. The connecting rope 30 can be made of a material with poor elasticity, such as nylon or carbon fiber, so that the baffle 29 can quickly drive the limiting block 22 to slide into the fixed frame 19. At this time, the first limiting plate 23 and The protrusions 33 in the limiting groove separate, causing the sliding rod 7 and the guide plate 2 to lose their limiting relationship. Then, under the elastic force of the pull rope 17, the sliding rod 7 is driven to slide towards the rotating shaft 21 and gradually approach the rotating shaft 21. During this process, the sliding rod 7 simultaneously drives the brush 28 on its inner side to move, which is beneficial for cleaning the dust on the top of the photovoltaic panel. When the sliding rod 7 gradually approaches the rotating shaft 21, the first dust baffle 11 and the second dust baffle 10 approach each other and compress the space between them. Since the ends of the first dust baffle 11 and the second dust baffle 10 that are close to the greenhouse roof are sealed by the dust baffle strip 20, the airflow generated by the compression space when the first dust baffle 11 and the second dust baffle 10 approach each other can discharge the dust downwards. Since the greenhouse roof is generally arranged at an angle and the two sides of the greenhouse roof are relatively close to the surface, the dust discharged from the bottom of the first dust baffle 11 and the second dust baffle 10 can fall to the ground, which helps to prevent the dust from flying into the air and polluting the environment.

[0043] When the slider 7 approaches the rotating shaft 21, the slider 15 contacts and presses against the connecting plate 27. At this time, the pressure of the slider 15 on the connecting plate 27 causes it to slide towards the fixed frame 19. The attraction between the first magnet 26 and the second magnet 31 maintains the stability of the connecting plate 27, making it difficult for it to separate from the fixed frame 19. The connecting plate 27 can also cause the top block 25 to slide inwards into the fixed frame 19, thereby pressing the top block 25 outwards. This causes the first limiting plate 23 to move again between the two adjacent protrusions 33, thus re-locking the slider 7 and the guide plate 2. The second spring 35, located in the groove, gives the second limiting plate 24 a certain degree of flexibility. When the first limiting plate 23 interferes with the protrusion 33, the second limiting plate 24 will overcome the pressure of the second spring 35 and slide downward, so that after the slide rod 7 slides a certain distance, it will push the first limiting plate 23 outward and re-engage between the two protrusions 33. After the slide rod 7 is locked with the guide plate 2, the rotating shaft 21 continues to move relative to the slide rod 7. Repeating the above process can clean the top of the photovoltaic panel, and during the cleaning process, it can effectively prevent dust from flying into the external environment.

[0044] The first limiting plate 23 and the second limiting plate 24 are hinged together. When the rotating shaft 21 moves to the edge of the photovoltaic panel and needs to be reset, the rotating shaft 21 moves in the opposite direction and gradually approaches the sliding rod 7, causing the sliding rod 7 to move in the opposite direction synchronously. At this time, when the first limiting plate 23 contacts the protrusion 33, the first limiting plate 23 can rotate on its own, so as not to interfere with the protrusion 33, which is conducive to the reset of the sliding rod 7. After the sliding rod 7 and the rotating shaft 21 are reset, the first dust baffle 11 and the second dust baffle 10 are folded in the vertical direction and are not laid out. The mounting is positioned on the photovoltaic panel, thus not affecting the light-receiving area of ​​the photovoltaic panel. After the rotating shaft 21 and the sliding rod 7 are reset, the baffle 8 can shield the part of the sliding rod 7 exposed to the environment. At this time, the connecting cover 14 also rotates to the side of the rotating shaft 21 away from the sliding rod 7, shielding the side of the rotating shaft 21 exposed to the external environment. This prevents dust and other impurities from adhering to the outside of the rotating shaft 21, thereby preventing the rotating shaft 21 from scratching the photovoltaic panel due to impurities adhering to its surface when rotating along the top surface of the photovoltaic panel, which is beneficial for protecting the photovoltaic panel.

[0045] like Figure 10 As shown, in order to avoid excessive stretching of the pull rope 17 and affecting its service life, rope sleeves can be fixedly fitted at both ends of the pull rope 17, and a fixed rope 34 is fixedly connected between the two rope sleeves. The fixed rope 34 has no elasticity and can be made of nylon material. In actual use, when the pull rope 17 is stretched and generates sufficient traction, the fixed rope 34 is straightened, thereby preventing the pull rope 17 from continuing to extend.

[0046] like Figure 1-3As shown, a guide groove 3 is provided on the side of the guide plate 2, and a connecting shaft 4 is fixedly connected to both ends of the rotating shaft 21. A first guide block 5 is rotatably sleeved on the outer side of the connecting shaft 4. A second guide block 6 is fixedly connected to both end faces of the slide rod 7. The first guide block 5 and the second guide block 6 are both T-shaped and slidably engaged in the guide groove 3. A gear 18 is provided between the slide plate and the first guide plate 2. The gear 18 is fixedly sleeved on the outer side of the rotating shaft 21, and a rack 13 that meshes with the gear 18 is fixedly provided on the inner top wall of the guide plate 2.

[0047] Furthermore, a support plate 9 is fixedly connected to the top surface of the guide plate 2 on one side, a slide rail is provided on the bottom surface of the support plate 9, and a motor 12 is provided below the support plate 9. The connecting shaft 4 is connected to the output shaft of the motor 12. A motor cover is provided on the outside of the motor 12, and a base that slides with the slide rail is fixedly provided on the motor cover, so that the motor 12 can slide at the bottom of the support plate 9.

[0048] In actual use, the motor 12 drives the connecting shaft 4 and the rotating shaft 21 to rotate, which in turn drives the gear 18 to rotate. Then, the meshing of the gear 18 and the rack 13 drives the connecting shaft 4 to move on top of the photovoltaic panel.

[0049] Of course, the driving method for driving the rotating shaft 21 to slide is not limited to the one mentioned above. In actual use, the rotating shaft can also be driven to slide by connecting the lead screw and the guide block. Specifically, guide blocks can be arranged at both ends of the rotating shaft 21 so that the lead screw passes through the guide block and is threadedly connected to it. The specific connection method is a common structure in the mechanical field and will not be elaborated here.

Claims

1. A photovoltaic agricultural greenhouse roof cleaning device, comprising a support frame and photovoltaic panels mounted on top of the support frame, wherein guide plates are provided at both the top and bottom ends of the support frame, characterized in that: The top of the photovoltaic panel is slidably provided with a rotating shaft and a sliding rod between two guide plates. A first dust baffle and a second dust baffle are respectively provided on the rotating shaft and the sliding rod. A brush is installed on the side of the sliding rod near the rotating shaft. The slide rod is provided with a limiting component that cooperates with the guide plate. The rotating shaft and the slide rod are connected by a traction component. When the rotating shaft moves away from the slide rod, it drives the traction component to unfold and releases the locking relationship between the slide rod and the guide plate through the force of the traction component on the limiting component, so that the slide rod gradually approaches the rotating shaft. Both ends of the outer side of the rotating shaft are rotatably provided with collars. The collars are located on the outer side of the bracket, and a connecting cover is fixedly connected between the two collars. The connecting cover is rotatably located on the outer side of the rotating shaft. The bottom end of the first dust baffle is fixedly connected to the connecting cover, and the bottom end of the second dust baffle is hinged to the slide rod. The ends of the first dust baffle and the second dust baffle that are close to each other are hinged together.

2. The photovoltaic agricultural greenhouse roof cleaning device according to claim 1, characterized in that: The limiting assembly includes a fixed frame fixedly connected to both sides of the top of the slide rod. A limiting block is slidably connected inside the fixed frame, and one end of the limiting block extends towards the guide plate and passes through the fixed frame. The limiting block is slidably connected to the fixed frame. A groove is formed at the end of the limiting block near the guide plate. A second limiting plate is slidably connected inside the groove. A first limiting plate is hinged to the end of the second limiting plate away from the limiting block. A second spring is provided at the bottom end of the second limiting plate in the groove. A top block is slidably provided on the side of the fixed frame near the rotating shaft. One end of the top block passes through the fixed frame and extends into its inner cavity. The top surface of the end of the top block extending into the fixed frame is set as an inclined surface. The end surface of the top block placed inside the fixed frame extends outward to form a protrusion. A connecting plate is fixedly connected to the end of the top block placed outside the fixed frame. A second magnet and a first magnet are fixed on the opposite sides of the connecting plate and the fixed frame, respectively. The ends of the first magnet and the second magnet that are close to each other have different magnetic poles.

3. The photovoltaic agricultural greenhouse roof cleaning device according to claim 2, characterized in that: A limiting groove is formed on the side of the guide plate near the limiting block, and a plurality of protrusions that engage with the first limiting plate are evenly arranged on the side wall of the limiting groove.

4. The photovoltaic agricultural greenhouse roof cleaning device according to claim 2, characterized in that: The traction assembly includes sliders rotatably sleeved on both ends of the outer side of the rotating shaft. The sliders are in contact with the bottom surface of the guide plate. A pull rope is fixedly connected to the side of the slider near the slide rod. The end of the pull rope away from the slider passes through the fixed frame and extends into its inner cavity. The pull rope is slidably connected to the fixed frame. A baffle is slidably arranged inside the fixed frame below the top block. A first spring is provided at the bottom end of the baffle. The end of the pull rope extending into the fixed frame is fixedly connected to the bottom surface of the baffle. A connecting rope is fixedly connected between the baffle and the limiting block.

5. The photovoltaic agricultural greenhouse roof cleaning device according to claim 1, characterized in that: A baffle strip is attached to the side of the slide rod away from the pivot. The top of the baffle strip is attached to the slide rod, and the bottom of the baffle strip overlaps the top of the photovoltaic panel. A dust-blocking strip is provided near the top between the first dust-blocking plate and the second dust-blocking plate. The dust-blocking strip is triangular, and the top two sides of the dust-blocking strip are respectively attached to the bottom surfaces of the first dust-blocking plate and the second dust-blocking plate.

6. The photovoltaic agricultural greenhouse roof cleaning device according to claim 5, characterized in that: The bottom of the dust-blocking belt is fixedly provided with a sleeve, and the sleeve is provided with multiple receiving chambers, and steel balls are provided in the receiving chambers.

7. The photovoltaic agricultural greenhouse roof cleaning device according to claim 4, characterized in that: Both ends of the pull rope are fixedly fitted with rope sleeves, and a fixed rope is fixedly connected between the two rope sleeves.

8. The photovoltaic agricultural greenhouse roof cleaning device according to claim 1, characterized in that: A protective pad made of rubber is fitted on the outside of the rotating shaft, and the rotating shaft is in contact with the photovoltaic panel. The sliding rod is located above the photovoltaic panel and has a gap between it and the photovoltaic panel.

9. A photovoltaic agricultural greenhouse roof cleaning device according to claim 2, characterized in that: The first limiting plate and the second limiting plate are hinged together by a hinge, which is located on the side of the first limiting plate near the pivot.

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