Photovoltaic panel cleaning device and cleaning method thereof

Abstract

The invention provides a photovoltaic panel cleaning device and a cleaning method thereof, and belongs to the technical field of photovoltaics. Comprising a shell and a movable shell sleeved with the shell, the lower ends of the shell and the movable shell are open, and the movable shell can slide along the shell; a distance adjusting assembly and a rotatably-arranged cleaning assembly are arranged between the outer shell and the movable shell, and the cleaning assembly is located on the inner side of the outer shell and the inner side of the movable shell. Walking wheels are installed on the two sides of the end, away from the movable shell, of the shell. The walking wheels are installed on the two sides of the end, away from the outer shell, of the movable shell. Through the arrangement of the distance adjusting assembly, the cleaning pipe, the cleaning shaft and the walking wheels, during use, the distance between the outer shell and the movable shell can be adjusted through the distance adjusting assembly, and the cleaning brush can be driven to rotate through the cleaning pipe and the cleaning shaft; and the cleaning device can be clamped on the photovoltaic panel through the walking wheels, and the walking wheels are driven to rotate through the second motor, so that the cleaning device can clean the surface of the photovoltaic panel while walking, and the cleaning efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic cleaning, and particularly relates to a photovoltaic panel cleaning device and a cleaning method thereof. Background Art

[0002] Photovoltaic power generation is a technology that directly converts light energy into electrical energy by using the photovoltaic effect at the semiconductor interface. It mainly consists of three major parts: solar panel components, a controller, and an inverter, and the main components are composed of electronic components. Solar cells can be encapsulated and protected after being connected in series to form large-area solar cell modules, and then combined with components such as a power controller to form a photovoltaic power generation device.

[0003] In the prior art, in order to improve the efficiency of photovoltaic power generation, the photovoltaic panels for photovoltaic power generation are generally directly placed in the external environment. As the usage time increases, a certain thickness of dust and impurities will accumulate on the surface of the photovoltaic panels. The coverage of these impurities on the photovoltaic panels will affect the efficiency of photovoltaic power generation. Therefore, it is very necessary to clean the photovoltaic panels regularly. Currently, the cleaning operation of photovoltaic panels is mostly completed manually. Photovoltaic power generation stations usually have a large area of photovoltaic panels, and the manual cleaning efficiency of photovoltaic panels is low, which is not conducive to the popularization and use of photovoltaic power generation. The photovoltaic panel cleaning devices in the prior art can only clean the photovoltaic panels on a single plane and require manual cooperation to transfer the cleaning device, and there is also a problem of low cleaning efficiency of photovoltaic panels. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a photovoltaic panel cleaning device and a cleaning method thereof to solve the problem that some prior art can only clean the photovoltaic panels on a single plane and also requires manual transfer of the cleaning device, which will also greatly affect the cleaning efficiency of the photovoltaic panels.

[0005] To solve the above technical problem, the present invention provides the following technical solutions: A photovoltaic panel cleaning device includes a housing and a movable housing sleeved inside one end of the housing. Both the housing and the movable housing are open at the lower end, and the movable housing can slide along the extension direction of the housing; a spacing adjustment component is provided between the housing and the movable housing; a cleaning component is rotatably arranged between the housing and the movable housing, and the cleaning component is located inside the housing and the movable housing; walking wheels are installed on both sides of the end of the housing far from the movable housing; walking wheels are installed on both sides of the end of the movable housing far from the housing.

[0006] As an improvement, the cleaning assembly includes a cleaning shaft disposed inside the housing and a cleaning tube disposed inside the movable housing; one end of the cleaning shaft is rotatably installed at the end of the housing, and the other end of the cleaning shaft is provided with a movable groove having a polygonal cross-sectional shape; one end of the cleaning tube is rotatably installed on the movable housing, a fixing rod is disposed inside the cleaning tube, the end of the fixing rod extends to the outside of the cleaning tube, and the end of the fixing rod located outside the cleaning tube is slidably installed in the movable groove; when the cleaning shaft rotates, it can drive the cleaning tube to rotate together; cleaning brushes are provided on both the cleaning shaft and the cleaning tube.

[0007] As an improvement, a sliding groove is provided inside the housing, and a slider adapted to the sliding groove is provided on the outer wall of the movable housing, and the slider is slidably installed in the sliding groove.

[0008] As an improvement, the spacing adjustment assembly includes a first fixing plate and a second fixing plate disposed at intervals, the first fixing plate is fixed on the housing, and the second fixing plate is fixed on the movable housing; a third motor is further installed on the second fixing plate, a first threaded rod is fixed on the output shaft of the third motor, a limiting block is provided at the other end of the first threaded rod, and the first threaded rod passes through the first fixing plate and is threadedly connected to the first fixing plate.

[0009] As an improvement, an adjustable drive assembly is further included, which is respectively installed on the housing and the movable housing. The adjustable drive assembly includes two installation plates disposed at intervals and a horizontally disposed gear rotatably installed between the two installation plates, and further includes an electric push rod and a rack fixed on the electric push rod and meshing with the gear for transmission; the installation plate and the electric push rod are fixedly installed at the end of the housing or the end of the movable housing; a vertically disposed vertical rod is drivingly installed in the middle of the gear, the lower end of the vertical rod extends below the installation plate, a connecting plate is fixed at the lower end of the vertical rod, and the other end of the connecting plate is rotatably installed with the traveling wheel.

[0010] As an improvement, a through hole is provided in the middle of the gear, a fixing block is provided in the through hole, a vertically disposed vertical groove adapted to the fixing block is provided on the vertical rod, and the fixing block is slidably disposed inside the vertical groove; the upper end of the vertical rod extends above the installation plate, a vertically disposed threaded hole is provided on the vertical rod, a second threaded rod is threadedly connected in the threaded hole, and the upper end of the second threaded rod is fixedly connected to the output end of a fourth motor, and the fourth motor is fixed on a top plate above the adjustable drive assembly. An avoidance hole allowing the vertical rod to pass through is provided on the installation plate.

[0011] As an improvement, annular plates are provided on both the upper and lower side walls of the gear, and annular grooves adapted to the annular plates are provided on one side of the two installation plates close to the gear, and the annular plates are disposed in the annular grooves and can rotate in the annular grooves.

[0012] As an improvement, a vertically arranged rotating shaft is rotatably installed at the end of the connecting plate; the walking wheels are installed at the lower end of the rotating shaft, and the upper end of the rotating shaft is directly connected to the output end of the second motor; the second motor is fixed on the connecting plate.

[0013] A cleaning method for a photovoltaic panel cleaning device includes the following steps: S1: First, place this cleaning device on the top surface of the photovoltaic panel to be cleaned, and connect the water inlet pipe to an external water supply device; then start the third motor, and the third motor drives the first threaded rod to rotate, so that the relative position between the outer shell and the movable shell is adjusted to the target value, and the walking wheels at the end of the connecting plate are respectively clamped on the side walls of the photovoltaic panel from both sides. When the walking wheels are clamped tightly, the third motor stops rotating, and this device is fixedly installed on the photovoltaic panel. S2: Then, inject water source into the water inlet pipe through an external water supply device, so that the water source sprays into the inner cavities of the outer shell and the movable shell, and start the first motor. The first motor drives the cleaning shaft to rotate, and the cleaning shaft drives the cleaning pipe to rotate together through the fixing rod, so that the cleaning brushes on the cleaning shaft and the cleaning pipe perform a rotating cleaning operation on the photovoltaic panel. S3: Start the second motor, and the second motor drives the rotating shaft to rotate. The rotating shaft drives the walking wheels to rotate, so that the walking wheels can move on the side walls of both sides of the photovoltaic panel. By combining the rotation of the cleaning brushes and the spraying of the water source, an efficient and convenient cleaning operation of the photovoltaic panel can be realized. S4: When the outer shell and the movable shell move to the position on one side of a photovoltaic panel, the second motor stops rotating, and start the electric push rod and the third motor on one side. The electric push rod drives the rack to move, the rack meshes with the gear to rotate, and the gear drives the connecting plate to rotate through the vertical rod, so that the walking wheels on the other side of the connecting plate rotate to a suitable position, and the third motor drives the second threaded rod to rotate. The second threaded rod meshes with the vertical rod to move, and the connecting plate is driven by the vertical rod to adjust the height of the walking wheels, so that the walking wheels on one side are clamped on the side walls of the adjacent photovoltaic panel. At this time, start the second motor again, and use the second motor to drive the walking wheels to rotate, so that this device can move to the adjacent photovoltaic panel, and by controlling the electric push rod and the third motor on the other side, all four walking wheels can be clamped on the adjacent photovoltaic panel, which is convenient for cleaning the photovoltaic panel. S5: Repeat the above operations, and this device can realize an efficient cleaning operation on the photovoltaic panels in one direction, effectively improving the cleaning efficiency of the photovoltaic panels.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: The present invention is provided with a spacing adjustment component, a cleaning tube, a cleaning shaft and traveling wheels. During use, the operation of the third motor on the spacing adjustment component can adjust the spacing between the outer shell and the movable shell, enabling the traveling wheels to be clamped onto a photovoltaic panel of an appropriate length. By driving the cleaning brush to rotate through the cleaning tube and the cleaning shaft and combining with the second motor to drive the traveling wheels to rotate, the traveling and cleaning operations of the device on the surface of the photovoltaic panel can be achieved, effectively improving the cleaning efficiency of the photovoltaic panel. The present invention is provided with an adjustable driving component, a connecting plate, traveling wheels and a second motor. During use, when the device moves to one side position of the photovoltaic panel, the operation of the electric push rod at this time causes the rack to engage and rotate the gear, which can change the position of the traveling wheels, and the fourth motor drives the second threaded rod to rotate, and the second threaded rod drives the vertical rod to move, which can change the height of the traveling wheels; combined with the above movements, the traveling wheels on one side can be clamped onto the side wall of the adjacent photovoltaic panel. At this time, by driving the traveling wheels by the second motor, the cleaning operation across the photovoltaic panel can be achieved, reducing the manual adjustment process of the equipment and further improving the cleaning efficiency of the photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of a photovoltaic panel cleaning device of the present invention Figure 1 ; Figure 2 is a three-dimensional structural schematic diagram of a photovoltaic panel cleaning device of the present invention Figure 2 ; Figure 3 is a three-dimensional internal cross-sectional structural schematic diagram of the present invention; Figure 4 is a three-dimensional structural schematic diagram of the spacing adjustment component of the present invention; Figure 5 is a three-dimensional structural schematic diagram of the installation plate of the present invention; Figure 6 is a three-dimensional internal cross-sectional structural schematic diagram of the installation plate of the present invention; Figure 7 is a three-dimensional internal structural schematic diagram of the cleaning tube and the cleaning shaft of the present invention.

[0016] Among them, 1 - outer shell; 2 - movable shell; 3 - spacing adjustment component; 4 - cleaning pipe; 5 - cleaning shaft; 6 - first motor; 7 - cleaning brush; 8 - water inlet pipe; 9 - slider; 10 - mounting plate; 11 - adjustable drive component; 12 - connecting plate; 13 - second motor; 14 - rotating shaft; 15 - traveling wheel; 16 - first fixing plate; 17 - third motor; 18 - first threaded rod; 19 - limiting block; 20 - gear; 21 - rack; 22 - electric push rod; 23 - horizontal plate; 24 - vertical rod; 25 - second threaded rod; 26 - fourth motor; 27 - top plate; 28 - fixing block; 29 - vertical groove; 30 - annular plate; 31 - annular groove; 32 - fixing rod; 33 - movable groove; 34 - sliding groove; 35 - second fixing plate. Detailed implementation manner

[0017] Embodiment

[0018] As Figures 1 to 7 As shown together, a photovoltaic panel cleaning device includes an outer shell 1 and a movable shell 2 sleeved inside one end of the outer shell 1. Both the outer shell 1 and the movable shell 2 are open at the lower end, and the movable shell 2 can slide along the extension direction of the outer shell 1. A spacing adjustment component 3 is provided between the outer shell 1 and the movable shell 2. A rotating cleaning component is provided between the outer shell 1 and the movable shell 2, and the cleaning component is located inside the outer shell 1 and the movable shell 2. Traveling wheels 15 are installed on both sides of the end of the outer shell 1 far from the movable shell 2. Traveling wheels 15 are installed on both sides of the end of the movable shell 2 far from the outer shell 1.

[0019] As Figure 1 、 Figure 2 、 Figure 3 And Figure 7 As shown together, the cleaning component includes a cleaning shaft 5 arranged inside the outer shell 1 and a cleaning pipe 4 arranged inside the movable shell 2. One end of the cleaning shaft 5 is rotatably installed at the end of the outer shell 1, and the other end of the cleaning shaft 5 is provided with a movable groove 33 with a polygonal cross-section. A first motor 6 is installed on the outer shell 1, and the output shaft of the first motor 6 is directly connected to the cleaning shaft 5. Preferably, a water inlet pipe 8 is fixedly connected to one end of the outer shell 1 close to the first motor 6; the cross-section of the movable groove 33 is a regular hexagon. One end of the cleaning pipe 4 is rotatably installed on the movable shell 2, a fixing rod 32 is arranged inside the cleaning pipe 4, the end of the fixing rod 32 extends to the outside of the cleaning pipe 4, and the end of the fixing rod 32 located outside the cleaning pipe 4 is slidably installed in the movable groove 33. When the cleaning shaft 5 rotates, it can drive the cleaning pipe 4 to rotate together; cleaning brushes 7 are arranged on both the cleaning shaft 5 and the cleaning pipe 4. In this embodiment, preferably, a brush is provided at the position on the inner wall of the movable shell 2 corresponding to the connection of the cleaning shaft 5 and the cleaning pipe 4. With the above technical solution, by driving the cleaning brushes 7 to rotate with the cleaning shaft 5 and the cleaning pipe 4 and combining with the brush, efficient cleaning of the surface of the photovoltaic panel can be achieved.

[0020] AsFigure 1 , Figure 2 , Figure 3 and Figure 7 As commonly shown by Figure 1 , Figure 2 , Figure 3 and Figure 7 , a chute 34 is provided on the inner part of the outer shell 1, and a slider 9 adapted to the chute 34 is provided on the outer wall of the movable shell 2. The slider 9 is slidably installed in the chute 34. The structural design of the slider 9 and the chute makes the relative sliding between the outer shell 1 and the movable shell 2 more stable.

[0021] As Figure 1 , Figures 2 to 4 As commonly shown by Figure 1 and Figures 2 to 4 , the spacing adjustment assembly 3 includes a first fixing plate 16 and a second fixing plate 35 arranged at intervals. The first fixing plate 16 is fixed on the outer shell 1, and the second fixing plate 35 is fixed on the movable shell 2. The second fixing plate 35 is also provided with a third motor 17. A first threaded rod 18 is fixed on the output shaft of the third motor 17. A limiting block 19 is provided at the other end of the first threaded rod 18. The first threaded rod 18 passes through the first fixing plate 16 and is threadedly connected to the first fixing plate 16. When the third motor 17 rotates, it drives the first threaded rod 18 to rotate. Since the first threaded rod 18 is threadedly connected to the first fixing plate 16, the movable shell 2 moves away from or close to the outer shell 1. The limiting block 19 can make the first threaded rod 18 and the first fixing plate 16 always maintain threaded connection without falling off, having a limiting effect. Through the spacing adjustment assembly 3, the relative position between the outer shell 1 and the movable shell 2 can be adjusted, so that the device can adapt to photovoltaic panels of different external dimensions and clean them.

[0022] As Figure 1 , Figure 2 , Figure 5 and Figure 5 As commonly shown by Figure 1 , Figure 2 , Figure 5 and Figure 5 , the photovoltaic panel cleaning device further includes an adjustable driving assembly 11 respectively installed on the outer shell 1 and the movable shell 2. The adjustable driving assembly 11 includes two mounting plates 10 arranged at intervals and a horizontally arranged gear 20 rotatably installed between the two mounting plates 10. It also includes an electric push rod 22 and a rack 21 fixed on the electric push rod 22 and meshing with the gear 20. The mounting plates 10 and the electric push rod 22 are fixedly installed at the end of the outer shell 1 or the end of the movable shell 2. Preferably in this embodiment, cross plates 23 are fixed on both the outer shell 1 and the movable shell 2, and the electric push rod 22 is installed on the cross plate 23 at the corresponding position.

[0023] A vertically arranged vertical rod 24 is drivingly installed in the middle of the gear 20. The lower end of the vertical rod 24 extends below the mounting plate 10. A connecting plate 12 is fixed at the lower end of the vertical rod 24. The other end of the connecting plate 12 is rotatably installed with the traveling wheel 15.

[0024] A through hole is provided in the middle of the gear 20. A fixing block 28 is arranged in the through hole. A vertically arranged vertical groove 29 adapted to the fixing block 28 is provided on the vertical rod 24, and the fixing block 28 is slidably arranged inside the vertical groove 29. The upper end of the vertical rod 24 extends above the mounting plate 10. A vertically arranged threaded hole is provided on the vertical rod 24, and a second threaded rod 25 is threadedly connected in the threaded hole. The upper end of the second threaded rod 25 is fixedly connected to the output end of the fourth motor 26. The fourth motor 26 is fixed on the top plate 27 above the adjustable driving assembly 11, and the top plate 27 is fixedly connected to the mounting plate 10. An avoidance hole allowing the vertical rod 24 to pass through is provided on the mounting plate 10. The above structural design can adjust the height and position of the traveling wheel 15, so that the traveling wheel 15 can be clamped on the side wall of the photovoltaic panel, realizing the horizontal movement of the device and crossing the photovoltaic panel for cleaning operation, and improving the cleaning efficiency of the photovoltaic panel.

[0025] As Figure 1 、 Figure 2 、 Figure 5 and Figure 5 As commonly shown, annular plates 30 are provided on both the upper and lower side walls of the gear 20. Annular grooves 31 adapted to the annular plates 30 are provided on one side of each of the two mounting plates 10 close to the gear 20. The annular plates 30 are arranged in the annular grooves 31 and can rotate in the annular grooves 31. A vertically arranged rotating shaft 14 is rotatably installed at the end of the connecting plate 12; the lower end of the rotating shaft 14 is installed with the traveling wheel 15, and the upper end of the rotating shaft 14 is directly connected to the output end of the second motor 13; the second motor 13 is fixed on the connecting plate 12. The driving of the traveling wheel 15 can be realized through the second motor 13, so that the traveling wheel 15 rotates along the side walls on both sides of the photovoltaic panel and drives the cleaning device to move on the photovoltaic panel, improving the convenience of cleaning the photovoltaic panel.

[0026] A method for cleaning a solar photovoltaic panel using the present photovoltaic panel cleaning device includes the following steps: S1: First, connect the present photovoltaic panel cleaning device to an external power supply, connect the water inlet pipe 8 to an external water supply device, and place the device on the top surface of the photovoltaic panel to be cleaned. Then start the third motor 17. The third motor 17 drives the first threaded rod 18 to rotate. The first threaded rod 18 meshes with the first fixing plate 16 to move, so that the relative position between the housing 1 and the movable housing 2 changes, and the traveling wheel 15 on the connecting plate 12 moves toward one side of the side walls on both sides of the photovoltaic panel, so that the traveling wheel 15 is clamped on the side walls on both sides of the photovoltaic panel. When the traveling wheel 15 is clamped, the third motor 17 stops rotating, and the device is fixedly installed on the photovoltaic panel; S2: Then, water source is injected into the water inlet pipe 8 through an external water supply device, so that the water source is sprayed into the inner cavities of the outer shell 1 and the movable shell 2. And the first motor 6 is started, the first motor 6 drives the cleaning shaft 5 to rotate, the cleaning shaft 5 drives the cleaning pipe 4 to rotate together through the fixed rod 32, so that the cleaning brushes 7 on the cleaning shaft 5 and the cleaning pipe 4 perform a rotating cleaning operation on the photovoltaic panel; S3: Then, the second motor 13 is started, the second motor 13 drives the rotating shaft 14 to rotate, the rotating shaft 14 drives the traveling wheels 15 to rotate, so that the traveling wheels 15 can move on the side walls of both sides of the photovoltaic panel. And by the rotation of the cleaning brushes 7 and the combination of the spraying of the water source, an efficient and convenient cleaning operation on the photovoltaic panel can be realized; S4: When the outer shell 1 and the movable shell 2 move to the position on one side of a photovoltaic panel, at this time, the second motor 13 stops rotating, the electric push rod 22 and the third motor 17 on one side are started. The electric push rod 22 drives the rack 21 to move, the rack 21 meshes with the gear 20 to rotate, the gear 20 drives the connecting plate 12 to rotate through the vertical rod 24, so that the traveling wheels 15 on the other side of the connecting plate 12 rotate to a suitable position. And the third motor 17 drives the second threaded rod 25 to rotate, the second threaded rod 25 meshes with the vertical rod 24 to move, and the connecting plate 12 is driven by the vertical rod 24 to change the height position of the traveling wheels 15, so that the traveling wheels 15 on one side can be clamped on the side walls of the adjacent photovoltaic panel. At this time, the second motor 13 is started again, and by driving the traveling wheels 15 to rotate with the second motor 13, the device can move to the adjacent photovoltaic panel. And by controlling the electric push rod 22 and the third motor 17 on the other side, all four traveling wheels 15 can be clamped on the adjacent photovoltaic panel, which is convenient for cleaning the photovoltaic panel; S5: Repeating the above operations can enable the device to perform an efficient cleaning operation on the photovoltaic panels in one direction, effectively improving the cleaning efficiency of the photovoltaic panels.

Claims

1. A photovoltaic panel cleaning device, characterized in that: It comprises an outer shell (1) and a movable shell (2) sleeved on the inner side of one end of the outer shell (1); the outer shell (1) and the movable shell (2) are both open at the lower ends, and the movable shell (2) can slide along the extension direction of the outer shell (1); a spacing adjustment component (3) is provided between the outer shell (1) and the movable shell (2); A rotatably arranged cleaning component is provided between the outer shell (1) and the movable shell (2), and the cleaning component is located on the inner sides of the outer shell (1) and the movable shell (2); Travel wheels (15) are mounted on both sides of the end of the outer shell (1) away from the movable shell (2); The travel wheels (15) are mounted on both sides of the end of the movable shell (2) away from the outer shell (1).

2. A photovoltaic panel cleaning device according to claim 1, characterized in that: The cleaning assembly comprises a cleaning shaft (5) arranged inside the housing (1) and a cleaning pipe (4) arranged inside the movable housing (2); one end of the cleaning shaft (5) is rotatably mounted on the end of the housing (1), and the other end of the cleaning shaft (5) is provided with a movable groove (33) having a polygonal cross-sectional shape; a first motor (6) is mounted on the housing (1), an output shaft of the first motor (6) is directly connected to the cleaning shaft (5), and an end of the housing (1) close to the first motor 6 is fixedly connected to a water inlet pipe (8); One end of the cleaning tube (4) is rotatably mounted on the movable shell (2), and a fixing rod (32) is provided inside the cleaning tube (4); an end of the fixing rod (32) extends to the outside of the cleaning tube (4), and an end of the fixing rod (32) located outside the cleaning tube (4) is slidably mounted in the movable groove (33); When the cleaning shaft (5) rotates, it can drive the cleaning tube (4) to rotate together; and cleaning brushes (7) are provided on both the cleaning shaft (5) and the cleaning tube (4).

3. A photovoltaic panel cleaning device according to claim 1 or 2, characterized in that: A slide groove (34) is provided inside the outer shell (1), and a slider (9) adapted to the slide groove (34) is provided on the outer wall of the movable shell (2). The slider (9) is slidably installed in the slide groove (34).

4. A photovoltaic panel cleaning device according to claim 2, characterized in that: The spacing adjustment assembly (3) comprises a first fixing plate (16) and a second fixing plate (35) which are arranged at an interval, the first fixing plate (16) being fixed on the outer shell (1), and the second fixing plate (35) being fixed on the movable shell (2); the second fixing plate (35) is also provided with a third motor (17), a first threaded rod (18) being fixed on an output shaft of the third motor (17), a stop block (19) being provided at the other end of the first threaded rod (18), and the first threaded rod (18) passing through the first fixing plate (16) and being threadedly connected to the first fixing plate (16).

5. A photovoltaic panel cleaning device according to claim 3, characterized in that: It also includes an adjustable drive assembly (11) mounted on the outer shell (1) and the movable shell (2), The adjustable drive assembly (11) comprises two spaced-apart mounting plates (10) and a horizontally arranged gear (20) rotatably mounted between the two mounting plates (10), and also comprises an electric push rod (22) and a rack (21) fixed on the electric push rod (22) and meshing with the gear (20) for transmission; the mounting plates (10) and the electric push rod (22) are fixedly mounted at the end of the housing (1) or the end of the movable housing (2); A vertically arranged vertical rod (24) is installed in the middle of the gear (20) for transmission. The lower end of the vertical rod (24) extends below the mounting plate (10). A connecting plate (12) is fixed to the lower end of the vertical rod (24). The other end of the connecting plate (12) is rotatably mounted with the walking wheel (15).

6. A photovoltaic panel cleaning device according to claim 5, characterized in that: A through hole is provided in the middle of the gear (20), a fixing block (28) is provided in the through hole, a vertical slot (29) is provided on the vertical rod (24) and is matched with the fixing block (28), and the fixing block (28) is slidably arranged inside the vertical slot (29); The upper end of the vertical rod (24) extends to above the mounting plate (10), the vertical rod (24) is provided with a vertically arranged threaded hole, a second threaded rod (25) is threadedly connected in the threaded hole, the upper end of the second threaded rod (25) is fixedly connected to the output end of the fourth motor (26), and the fourth motor (26) is fixed on a top plate (27) above the adjustable drive assembly (11).

7. A photovoltaic panel cleaning device according to claim 5, characterized in that: An annular plate (30) is provided on the upper and lower side walls of the gear (20), and an annular groove (31) matching the annular plate (30) is provided on one side of the two mounting plates (10) close to the gear (20), and the annular plate (30) is arranged in the annular groove (31) and can rotate in the annular groove (31).

8. A photovoltaic panel cleaning device according to claim 5, characterized in that: A vertically arranged rotating shaft (14) is rotatably mounted on the end of the connecting plate (12); the travel wheel (15) is mounted on the lower end of the rotating shaft (14); the upper end of the rotating shaft (14) is directly connected to the output end of the second motor (13); and the second motor (13) is fixed on the connecting plate (12).

9. The cleaning method of the photovoltaic panel cleaning device according to any one of claims 4 to 8, characterized in that: The steps include: S1: First, the cleaning device is placed on the top surface of the photovoltaic panel to be cleaned, and the water inlet pipe (8) is connected to an external water supply device; then, the third motor (17) is started, and the third motor (17) drives the first threaded rod (18) to rotate, so that the relative position between the outer shell (1) and the movable shell (2) is adjusted to a target value, and the running wheels (15) at the ends of the connecting plate (12) are clamped on the side walls of the photovoltaic panel from both sides. When the running wheels (15) are clamped, the third motor (17) stops rotating, and the device is fixedly installed on the photovoltaic panel; S2: Then, water is added to the water inlet pipe (8) through an external water supply device, so that the water is sprayed into the inner cavity of the outer shell (1) and the movable shell (2), and the first motor (6) is started. The first motor (6) drives the cleaning shaft (5) to rotate, and the cleaning shaft (5) drives the cleaning tube (4) to rotate together through the fixed rod (32), so that the cleaning shaft (5) and the cleaning brush (7) on the cleaning tube (4) rotate to clean the photovoltaic panel; S3: starting the second motor (13), the second motor (13) drives the rotating shaft (14) to rotate, the rotating shaft (14) drives the running wheels (15) to rotate, so that the running wheels (15) can move on the side walls of the photovoltaic panel, and the rotation of the cleaning brush (7) and the spraying of water can achieve efficient and convenient cleaning of the photovoltaic panel; S4: When the housing (1) and the movable housing (2) move to a position on one side of a photovoltaic panel, the second motor (13) stops rotating, and the electric push rod (22) and the third motor (17) on one side are started. The electric push rod (22) drives the rack (21) to move, and the rack (21) meshes with the gear (20) to rotate. The gear (20) drives the connecting plate (12) to rotate through the vertical rod (24), so that the walking wheel (15) on the other side of the connecting plate (12) rotates to a suitable position, and drives the second threaded rod (25) to rotate through the third motor (17). The second threaded rod (25) The meshing vertical rod (24) moves, and the connecting plate (12) is driven by the vertical rod (24) to adjust the height of the running wheels (15), so that the running wheels (15) on one side are clamped to the side walls of the adjacent photovoltaic panels. At this time, the second motor (13) is started again, and the second motor (13) is used to drive the running wheels (15) to rotate, so that the device can move to the adjacent photovoltaic panel, and by controlling the electric push rod (22) and the third motor (17) on the other side, the four running wheels (15) can be clamped on the adjacent photovoltaic panel, so as to facilitate the cleaning operation of the photovoltaic panel; S5: Repeating the above operations can enable the device to perform efficient cleaning operations on the photovoltaic panels in one direction, effectively improving the cleaning efficiency of the photovoltaic panels.

Images