Photovoltaic panel cleaning device

Abstract

The invention discloses a photovoltaic panel cleaning device which comprises a walking mechanism, a sweeping mechanism and a dust collection mechanism. The sweeping mechanism comprises a flow gathering cover and a sweeping assembly arranged in an inner cavity of the flow gathering cover. The dust suction mechanism comprises a suction assembly and a filtering and collecting assembly, the suction assembly comprises a fixing base and a dust suction part, a containing cavity is formed in the fixing base, the dust suction part is installed in the containing cavity, the filtering and collecting assembly comprises an upper filtering box and a lower filtering box which are vertically communicated, a dust filtering net is arranged between the upper filtering box and the lower filtering box, and a dust filtering core is installed in the upper filtering box. A suction inlet is formed in the lower portion of the side, close to the flow gathering cover, of the fixing base, an inner cavity of the flow gathering cover is communicated with the containing cavity through the suction inlet, a feeding inlet is formed in the upper portion of the side, close to the lower filter box, of the containing cavity, and the lower filter box is communicated with the containing cavity through the feeding inlet. According to the photovoltaic panel cleaning device, pollutants entering the filtering and collecting assembly are not prone to fleeing out of the photovoltaic panel cleaning device and falling back to a photovoltaic panel again, and the cleaning efficiency and the cleaning effect are improved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic panel cleaning technology, and more specifically to a photovoltaic panel cleaning device. Background Technology

[0002] Existing photovoltaic panel cleaning devices, such as the one disclosed in Chinese Patent Publication No. CN115301593B, primarily rely on a servo motor to control the operation of a vacuum fan, which then sucks in dust and other pollutants into a filter bag for collection. The collection box, filter bag, vacuum fan, and vacuum channel of this device are all arranged in a horizontal, straight-through configuration. This allows dust and other pollutants in the filter bag to easily drift out of the cleaning device and fall back onto the photovoltaic panel surface, affecting the overall cleaning efficiency and effect. Furthermore, the overall structure of the device is not sufficiently compact and occupies a large area. Summary of the Invention

[0003] The present invention aims to provide a photovoltaic panel cleaning device to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of the present invention is: a photovoltaic panel cleaning device, comprising a walking mechanism, a sweeping mechanism, and a dust collection mechanism that cooperate with each other;

[0005] The cleaning mechanism includes a concentrator hood with its opening facing downwards and a cleaning assembly disposed inside the concentrator hood. The cleaning assembly is used to clean contaminants on the surface of the photovoltaic panel so that the contaminants float inside the concentrator hood.

[0006] The dust collection mechanism includes a suction component and a filter collection component. The suction component includes a fixed base and a dust collection part. The fixed base has a receiving cavity, and the dust collection part is installed in the receiving cavity. The filter collection component includes an upper filter box and a lower filter box that are connected vertically. A dust filter screen is provided between the upper filter box and the lower filter box. A dust filter core is installed in the upper filter box. A suction port is provided on the lower side of the fixed base near the flow gathering hood. The inner cavity of the flow gathering hood and the receiving cavity are connected through the suction port. A feed inlet is provided on the upper side of the receiving cavity near the lower filter box. The lower filter box and the receiving cavity are connected through the feed inlet.

[0007] Preferably, the inner bottom surface of the lower filter box is provided with multiple continuously arranged anti-backflow stepped structures. The top surface of the anti-backflow stepped structure is an inclined surface that gradually slopes downward towards the feed inlet, and the side of the anti-backflow stepped structure away from the feed inlet is a vertically arranged surface.

[0008] Preferably, an assembly frame is provided horizontally on one side of the lower filter box, and a fixed seat is fixedly installed between the flow hood and the assembly frame. A conveying channel is provided inside the assembly frame, and the lower filter box is connected to the feed inlet through the conveying channel; and / or the fixed seat includes an upper fixed seat and a lower fixed seat connected vertically, and the dust collection component is a fan. The fan is mounted on the side of the upper fixed seat near the lower fixed seat with the blades facing downward and rotating horizontally.

[0009] Preferably, a baffle plate is provided on the side of the conveying channel near the lower filter box, and the baffle plate is provided with multiple through holes, through which the conveying channel and the lower filter box are connected.

[0010] Preferably, there are two vacuuming mechanisms and two walking mechanisms. The two vacuuming mechanisms are respectively located on the front and rear sides of the cleaning mechanism, and the two walking mechanisms are respectively located on the left and right sides of the cleaning mechanism.

[0011] Preferably, the cleaning assembly includes a roller brush seat fixedly installed at both ends of one side of the fixed base and a spiral roller brush unit detachably installed between the two roller brush seats. The spiral roller brush unit is connected to a roller brush drive for driving the spiral roller brush unit to rotate.

[0012] Preferably, a first bushing and a second bushing are rotatably mounted on the two roller brush seats respectively. An elastic element is provided on the first bushing. The spiral roller brush unit includes a roller brush shaft and a spiral roller brush disposed on the roller brush shaft. One end of the roller brush shaft is detachably inserted into the first bushing and compresses the elastic element. The other end of the roller brush shaft is detachably inserted into the second bushing under the elastic force of the elastic element and forms a circumferential anti-rotation limit.

[0013] Preferably, the spiral roller brush includes a spiral fixing plate and a plurality of cleaning brushes disposed on the spiral fixing plate, wherein the spiral fixing plate is spirally arranged on the outer wall of the roller brush shaft.

[0014] Preferably, the traveling mechanism includes a traveling drive component, a support frame, a first track wheel, a second track wheel, a third track wheel, an elastic buffer seat, and a track. The first track wheel and the second track wheel are rotatably mounted at the front and rear ends of the support frame, respectively. The traveling drive component is drivenly connected to the first track wheel or the second track wheel. The elastic buffer seat is located on the support frame above the first track wheel and the second track wheel. The third track wheel is rotatably mounted on the elastic buffer seat to achieve elastic vertical telescopic movement. The track is sleeved on the first track wheel, the second track wheel, and the third track wheel.

[0015] Preferably, the elastic buffer seat includes an upper fixed frame, an elastic buffer member, and a lower fixed frame installed in sequence. The lower fixed frame is fixedly installed above the middle part of the support frame, and the third track wheel is rotatably installed inside the upper fixed frame.

[0016] The present invention has the following beneficial effects:

[0017] (1) The air duct formed by the suction port, the receiving cavity and the delivery port of the present invention is a Z-shaped air duct, and the upper filter box and the lower filter box of the filter collection component are arranged vertically, so that the internal air duct of the dust collection mechanism is not arranged in a horizontal and horizontal straight-through structure. Therefore, the pollutants entering the filter collection component are not easy to drift out to the outside of the photovoltaic panel cleaning device and fall back to the surface of the photovoltaic panel, thereby improving the cleaning efficiency and cleaning effect. Moreover, this structural layout makes the overall structure of the device more reasonable and compact, greatly reducing the area occupied in the horizontal direction. Furthermore, the photovoltaic panel cleaning device has a wide range of applications and can perform stable and efficient cleaning work even in environments with severe sand and dust pollution such as deserts and Gobi.

[0018] (2) The spiral roller brush unit has a quick-release structure, which allows the spiral roller brush unit to be installed and removed independently without having to be removed and replaced together with the roller brush seat and the lower fixed seat. The disassembly operation is simple, more convenient and quick, and the replacement cost is relatively small.

[0019] (3) The tension of the track of the walking mechanism of the present invention can be adaptively adjusted to achieve the effect of flexible buffering and shock absorption, prevent the track from stress concentration caused by the squeezing of hard large particulate pollutants, and thus prevent plastic deformation, thereby ensuring the balance and stability of the photovoltaic panel cleaning device during movement, improving the obstacle crossing ability of the photovoltaic panel cleaning device, ensuring the accuracy of the movement path, improving the overall work efficiency, and playing a good protective role for the walking mechanism, extending the service life of the photovoltaic panel cleaning device. Attached Figure Description

[0020] Figure 1 This is a bottom-view view of an embodiment of the invention.

[0021] Figure 2 This is a top-side view of an embodiment of the invention.

[0022] Figure 3 This is a top view of an embodiment of the invention.

[0023] Figure 4 yes Figure 3 Sectional view at point AA.

[0024] Figure 5 This is a schematic diagram of the structure of the fixing base according to an embodiment of the invention.

[0025] Figure 6 This is a schematic diagram of the structure of the side-standing closure component according to an embodiment of the invention.

[0026] Figure 7 This is a schematic diagram of the lower filter box according to an embodiment of the invention.

[0027] Figure 8 This is a cross-sectional view of the lower filter box of an embodiment of the invention.

[0028] Figure 9 This is a schematic diagram of the structure of the dust filter screen according to an embodiment of the invention.

[0029] Figure 10 This is an assembly diagram of the spiral roller brush unit according to an embodiment of the invention.

[0030] Figure 11 yes Figure 10 Sectional view at point BB.

[0031] Figure 12 This is a perspective view of the spiral brush unit of an embodiment of the invention.

[0032] Figure 13 This is a schematic diagram of the structure of the second bushing of an embodiment of the invention.

[0033] Figure 14 This is a schematic diagram of the structure of the flow-concentrating hood according to an embodiment of the invention.

[0034] Figure 15 This is a perspective view of the walking mechanism of an embodiment of the invention.

[0035] Figure 16 This is a top view of the walking mechanism of an embodiment of the invention.

[0036] Figure 17 yes Figure 16 Sectional view at point CC.

[0037] Attached diagram labels: 1. Walking mechanism; 11. Walking motor; 12. Second chain drive component; 13. Support frame; 14. First track wheel; 15. Second track wheel; 16. Third track wheel; 17. Elastic buffer seat; 171. Upper fixed frame; 172. Inner sleeve; 173. Elastic buffer component; 174. Lower fixed frame; 175. Outer sleeve; 18. Track; 2. Cleaning mechanism; 21. Concentrator; 211. Arc-shaped surface; 212. Positioning plate; 22. Roller brush seat; 23. Spiral roller brush unit; 231. Roller brush shaft; 232. Spiral fixing plate; 233. Cleaning brush; 234. Clamping seat; 2 35 Protrusion, 24 Roller Brush Motor, 25 First Chain Drive Component, 26 First Shaft Sleeve Seat, 27 Second Shaft Sleeve Seat, 271 Groove, 28 Elastic Component, 3 Dust Collection Mechanism, 31 Upper Fixed Seat, 32 Lower Fixed Seat, 33 Side Standing Enclosure, 34 Fan, 35 Fan Motor, 36 Upper Filter Box, 37 Lower Filter Box, 38 Dust Filter Screen, 39 Dust Filter Core, 310 Assembly Frame, 311 Conveying Channel, 4 Receiving Chamber, 5 Suction Inlet, 6 Feed Inlet, 7 Anti-Backflow Step Structure, 71 Inclined Surface, 72 Vertical Surface, 8 Baffle Plate, 81 Strip-shaped Fine Hole, 82 Rectangular Through Hole. Detailed Implementation

[0038] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, primarily used to illustrate the embodiments and to explain the operating principles of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0039] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] See Figure 1-17 As shown, as an embodiment of the present invention, a photovoltaic panel cleaning device is provided, including a walking mechanism 1, a sweeping mechanism 2 and a vacuuming mechanism 3 that cooperate with each other;

[0042] The cleaning mechanism 2 includes a concentrator 21 with its opening facing downwards and a cleaning assembly disposed in the inner cavity of the concentrator 21. The cleaning assembly is used to clean contaminants on the surface of the photovoltaic panel so that the contaminants float in the inner cavity of the concentrator 21.

[0043] The vacuuming mechanism 3 includes a suction component and a filter collection component. The suction component includes a fixed base and a suction part. The fixed base is provided with a receiving cavity 4. The suction part is a fan 34 that is horizontally rotated and installed in the receiving cavity 4. The fan blades of the fan 34 are arranged with the front facing down. The fan 34 is connected to a fan motor 35. The filter collection component includes an upper filter box 36 and a lower filter box 37 that are connected vertically. A dust filter screen 38 is provided between the upper filter box 36 and the lower filter box 37. A dust filter core 39 is installed in the upper filter box 36. A suction port 5 is provided on the lower side of the fixed base near the flow gathering hood 21. The inner cavity of the flow gathering hood 21 is connected to the receiving cavity 4 through the suction port 5. A feed inlet 6 is provided on the upper side of the receiving cavity 4 near the lower filter box 37. The lower filter box 37 is connected to the receiving cavity 4 through the feed inlet 6.

[0044] The photovoltaic panel cleaning device of the present invention is used to clean contaminants on the surface of photovoltaic panels. Contaminants can be divided into large particulate contaminants and small particulate contaminants according to particle size and mass. For example, hard bird droppings, insect and insect egg residues, as well as sand, aggregate dust and other similar biological residues, are all large particulate contaminants, while fine dust is a type of small particulate contaminant. When cleaning photovoltaic panels, the photovoltaic panel cleaning device of the present invention first cleans the contaminants on the surface of the photovoltaic panel by the cleaning component, causing the contaminants to float in the inner cavity of the concentrator hood 21. The fan 34 rotates at high speed under the drive of the fan motor 35. At this time, the pressure values ​​formed on the front and back sides of the fan blades will be deviated, that is, negative pressure will be formed. Since the airflow direction is usually from the high pressure area to the low pressure area (i.e., from bottom to top), the contaminants in the inner cavity of the concentrator hood 21 will be sucked into the receiving cavity 4 through the suction port 5, and then flow upward and enter the lower filter box 37 through the delivery port 6. Then, the large particles of contaminants are blocked by the dust filter 38 and fall into the lower filter box 37, while the small particles of contaminants enter the upper filter box 36 through the dust filter 38 and are adsorbed by the dust filter core 39, thereby realizing the cleaning process of the photovoltaic panel. Because the air duct formed by the suction inlet 5, the receiving cavity 4, and the delivery inlet 6 is a Z-shaped air duct, and the upper filter box 36 and the lower filter box 37 of the filter collection assembly are arranged vertically, the airflow path of the internal air duct of the dust collection mechanism 3 is as follows: Figure 4 As indicated by the arrow, the internal air duct of the dust collection mechanism 3 is not a horizontal, straight-through arrangement. Therefore, pollutants entering the filter collection component are less likely to drift out of the photovoltaic panel cleaning device and fall back onto the surface of the photovoltaic panel, thereby improving cleaning efficiency and effect. Moreover, this structural layout makes the overall structure of the device more reasonable and compact, greatly reducing the area occupied in the horizontal direction. Furthermore, the photovoltaic panel cleaning device has a wide range of applications and can perform stable and efficient cleaning work even in environments with severe sand and dust pollution, such as deserts and Gobi.

[0045] In this embodiment, the inner bottom surface of the lower filter box 37 is provided with a plurality of continuously arranged anti-backflow stepped structures 7. The top surface of the anti-backflow stepped structure 7 is an inclined surface 71 that gradually slopes downward toward the inlet 6. The side of the anti-backflow stepped structure 7 away from the inlet 6 is a vertically arranged surface 72. The inclined surface 71 has a good airflow guiding effect, so that pollutants can enter the lower filter box 37 in an orderly and fast manner, while the vertical surface 72 has a good blocking effect, preventing pollutants in the lower filter box 37 from flowing back into the dust collection mechanism 3, thus ensuring the cleaning effect of the photovoltaic panel.

[0046] In this embodiment, there are two vacuuming mechanisms 3 and two walking mechanisms 1. The two vacuuming mechanisms 3 are respectively arranged on the front and rear sides of the cleaning mechanism 2, and the two walking mechanisms 1 are respectively arranged on the left and right sides of the cleaning mechanism 2. The structural layout is more reasonable and compact, and also more balanced and stable.

[0047] In this embodiment, an assembly frame 310 extends horizontally along one side of the lower filter box 37. A fixed base is fixedly installed between the flow-concentrating hood 21 and the assembly frame 310. A conveying channel 311 is provided inside the assembly frame 310, and the lower filter box 37 is connected to the feed inlet 6 through the conveying channel 311. The fixed base includes an upper fixed base 31 and a lower fixed base 32 connected vertically. The fan 34 is mounted on the side of the upper fixed base 31 near the lower fixed base 32 with its blades facing downwards and rotating horizontally. The fan motor 35 is mounted on the top of the upper fixed base 31 and is driven by the fan 34. The assembly frame 310, the flow-concentrating hood 21, and the cleaning components are all mounted on the lower fixed base 32. This design allows for the removal or replacement of the fan 34 by simply removing the upper fixed base 31, without removing the lower fixed base 32 and its assembled components, making the replacement operation simpler and faster. Furthermore, it ensures that the structural design of the cleaning mechanism 2 and the vacuuming mechanism 3 follows a high degree of integration, meeting the requirements for rapid disassembly and assembly. When the cleaning components rotate to initially clean contaminants on the photovoltaic panel, the flow-concentrating hood 21 can restrict the flow trajectory of the contaminants, preventing contaminants that have detached from the surface of the photovoltaic panel from falling back onto the photovoltaic panel.

[0048] Specifically, the front and rear sides of the flow-concentrating cover 21 are respectively installed between the upper fixed seat 31 and the lower fixed seat 32, and are positioned by the outer contour and four positioning pieces 212. The positioning pieces 212 are tightly locked to the lower fixed seat 32 by passing countersunk cross screws through the screw holes on the positioning pieces 212.

[0049] The upper fixed seat 31 and the lower fixed seat 32 enclose a cylindrical cavity 4 that runs through the front and back. The fan 34 is installed in the cavity 4. The front and rear sides of the flow-concentrating shroud 21 are respectively provided with concave arc-shaped surfaces 211. The arc-shaped surfaces 211 are installed on the upper part of one side of the cavity 4, so that the bottom side of the arc-shaped surfaces 211 and the lower fixed seat 32 form an intake port 5. The lower fixed seat 32 and the assembly frame 310 are fixedly installed with a side-standing sealing member 33, so that the side-standing sealing member 33 and the upper fixed seat 31 form an inlet 6. The side-standing sealing member 33 ensures that a stable low pressure can be formed at the lower fixed seat 32 at the lower part of the cavity 4, guiding the airflow to move upward along the axis in the cavity 4 and preventing the airflow from running wild.

[0050] In this embodiment, a baffle plate 8 is provided on the side of the conveying channel 311 near the lower filter box 37. The baffle plate 8 has multiple through holes, including strip-shaped fine holes 81 and rectangular through holes 82. The strip-shaped fine holes 81 are located above the rectangular through holes 82, and the rectangular through holes 82 are larger than the strip-shaped fine holes 81. The conveying channel 311 and the lower filter box 37 are connected through the strip-shaped fine holes 81 and the rectangular through holes 82. This arrangement makes it difficult for large particulate pollutants in the lower filter box 37 to flow back into the conveying channel 311, further improving the backflow prevention effect of the lower filter box 37 and ensuring the cleaning effect of the photovoltaic panel.

[0051] In this embodiment, the cleaning assembly includes a roller brush seat 22 fixedly installed on the left and right ends of one side of the lower fixed seat 32 and a spiral roller brush unit 23 detachably installed between the two roller brush seats 22. There are two spiral roller brush units 23 arranged in parallel front and back. The spiral roller brush unit 23 is connected to a roller brush drive component for driving the spiral roller brush unit 23 to rotate. The roller brush drive includes a roller brush motor 24 and a first chain drive 25. The roller brush motor 24 is driven by the spiral roller brush unit 23 via the first chain drive 25. Specifically, a first bushing 26 and a second bushing 27 are rotatably mounted on two roller brush seats 22, respectively. An elastic element 28, which is a spring, is provided on the first bushing 26. The spiral roller brush unit 23 includes a roller brush shaft 231 and a spiral roller brush mounted on the roller brush shaft 231. One end of the roller brush shaft 231 is detachably inserted into the first bushing 26 and compresses the elastic element 28. The other end of the roller brush shaft 231 is detachably inserted into the second bushing 27 under the elastic force of the elastic element 28 and forms a circumferential anti-rotation limit, so that the spiral roller brush unit 23 and the first chain drive 25 are driven by the first chain drive 25. The first shaft sleeve 26 and the second shaft sleeve 27 can be coaxially connected and rotate synchronously. When the spiral roller brush unit 23 is damaged and needs to be replaced, the maintenance personnel only need to hold the roller brush shaft 231 of the spiral roller brush unit 23 and move it towards the first shaft sleeve 26, thereby compressing the elastic element 28. One end of the roller brush shaft 231 can then be removed from the second shaft sleeve 27, and the other end of the roller brush shaft 231 can then be removed from the first shaft sleeve 26. The spiral roller brush unit 23 can then be quickly removed from the lower fixed seat 32. This technical solution does not require the spiral roller brush unit 23, the roller brush seat 22 and the lower fixed seat 32 to be disassembled and replaced together. The disassembly operation is simple, more convenient and quick, and the replacement cost is low.

[0052] In this embodiment, a cylindrical groove is formed at one end of the first bushing 26 near the brush shaft 231. An elastic element 28 is fixedly connected in the cylindrical groove of the first bushing 26. A clamping seat 234 is fixedly installed at the first end of the brush shaft 231. The clamping seat 234 is detachably inserted into the cylindrical groove of the first bushing 26 and compresses the elastic element 28. The other end of the brush shaft 231 is connected to the second bushing 27 by a non-circular protrusion 235 and a groove 271 to form a circumferential anti-rotation limit.

[0053] In this embodiment, the spiral roller brush includes a spiral fixing plate 232 and a plurality of cleaning brushes 233 disposed on the spiral fixing plate 232. The spiral fixing plate 232 is spirally arranged on the outer wall of the roller brush shaft 231. The plurality of cleaning brushes 233 are evenly arranged on the spiral fixing plate 232, and the front middle section of the cleaning brush 233 is a fixed section fixedly disposed within the spiral fixing plate 232, while the rear middle section of the cleaning brush 233 is a free section located outside the spiral fixing plate 232. The photovoltaic panel is cleaned through the free section. This arrangement makes the fixed section occupy a large proportion of the overall size of the cleaning brush 233, making the cleaning brush 233 more robust and stable, while effectively preventing the free section from bifurcation and deformation, thereby extending the service life of the cleaning brush 233.

[0054] In this embodiment, the walking mechanism 1 includes a walking drive component, a support frame 13, a first track wheel 14, a second track wheel 15, a third track wheel 16, an elastic buffer seat 17, and a track 18. The first track wheel 14 and the second track wheel 15 are rotatably mounted at the front and rear ends of the support frame 13, respectively. The walking drive component is drivenly connected to the first track wheel 14 or the second track wheel 15. The walking drive component includes a walking motor 11 and a second chain drive component 12. The elastic buffer seat 17 is located on the support frame 13 above the first track wheel 14 and the second track wheel 15. The third track wheel 16 is rotatably mounted on the elastic buffer seat 17 to achieve elastic vertical telescopic movement. The track 18 is sleeved on the first track wheel 14, the second track wheel 15, and the third track wheel 16. Specifically, the first track wheel 14 and the second track wheel 15 are track wheels that can only rotate and cannot move as a whole, while the third track wheel 16 is a track wheel that can not only rotate but also move up and down as a whole. The elastic buffer seat 17 enables elastic extension and retraction for up and down movement. When the walking mechanism 1 of the photovoltaic panel cleaning device moves, if the track 18 comes into contact with hard, large-particle pollutants such as gravel or sand on the surface of the photovoltaic panel, the track 18 will be compressed by the hard, large-particle pollutants, increasing the tension of the track 18. The track 18 will then press down, causing the third track wheel 16 to move downwards. The elastic buffer seat 17 will then elastically compress and buffer the movement downwards. After the track 18 passes over the large-particle pollutants, the elastic buffer seat 17 will provide cushioning. Under elastic action, the third track wheel 16 moves upward elastically to reset, and the tension of the track 18 decreases to return to the initial state. That is, the tension of the track 18 of the present invention can be adaptively adjusted to achieve the effect of flexible buffering and shock absorption, preventing the track 18 from stress concentration due to the compression of large particulate pollutants, thereby preventing plastic deformation, thus ensuring the balance and stability of the photovoltaic panel cleaning device during the movement process, improving the photovoltaic panel cleaning device's ability to turn over large particulate pollutants, and enabling it to move according to the set path to a large extent, preventing path deviation, ensuring the accuracy of the movement path, improving the overall work efficiency, and providing good protection for the walking mechanism 1, thus extending the service life of the photovoltaic panel cleaning device.

[0055] In this embodiment, the elastic buffer seat 17 includes an upper fixed frame 171, an elastic buffer member 173, and a lower fixed frame 174 installed sequentially. The lower fixed frame 174 is fixedly installed above the middle of the support frame 13, and the third track wheel 16 is rotatably installed inside the upper fixed frame 171. An outer sleeve 175 with an upward opening is installed on the top of the lower fixed frame 174, and an inner sleeve 172 with a downward opening is installed on the bottom of the upper fixed frame 171. The inner sleeve 172 is slidably inserted into the inside of the outer sleeve 175. The elastic buffer member 173 is a buffer spring installed inside the outer sleeve 175 and the inner sleeve 172. This allows the buffer spring to reliably extend and retract vertically, thereby allowing the third track wheel 16 to reliably extend and retract vertically without tilting or shifting horizontally, thus ensuring that the track 18 can move in a balanced and stable manner.

[0056] In summary, the photovoltaic panel cleaning device of the present invention achieves highly efficient coordination between the initial cleaning of the sweeping mechanism 2 and the continuous suction of the vacuuming mechanism 3, greatly improving the cleaning efficiency and effect of the photovoltaic panels. Furthermore, this device achieves a highly integrated design, resulting in a more rational and compact internal structure, smaller footprint, and easier transport and carrying. It also meets the requirements for quick assembly and disassembly, facilitating future maintenance.

[0057] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail made to the invention without departing from the spirit and scope of the invention as defined in the appended claims fall within the protection scope of the invention.

Claims

1. A photovoltaic panel cleaning device, characterized in that: This includes a walking mechanism, a sweeping mechanism, and a vacuuming mechanism that work together. The cleaning mechanism includes a concentrator hood with its opening facing downwards and a cleaning assembly disposed inside the concentrator hood. The cleaning assembly is used to clean contaminants on the surface of the photovoltaic panel so that the contaminants float inside the concentrator hood. The dust collection mechanism includes a suction component and a filter collection component. The suction component includes a fixed base and a dust collection part. The fixed base has a receiving cavity, and the dust collection part is installed in the receiving cavity. The filter collection component includes an upper filter box and a lower filter box that are connected vertically. A dust filter screen is provided between the upper filter box and the lower filter box. A dust filter core is installed in the upper filter box. A suction port is provided on the lower side of the fixed base near the flow gathering hood. The inner cavity of the flow gathering hood and the receiving cavity are connected through the suction port. A feed inlet is provided on the upper side of the receiving cavity near the lower filter box. The lower filter box and the receiving cavity are connected through the feed inlet.

2. The photovoltaic panel cleaning device according to claim 1, characterized in that: The bottom surface of the lower filter box is provided with multiple continuously arranged anti-backflow stepped structures. The top surface of the anti-backflow stepped structure is an inclined surface that gradually slopes downward towards the feed inlet, and the side of the anti-backflow stepped structure away from the feed inlet is a vertical surface.

3. The photovoltaic panel cleaning device according to claim 1, characterized in that: An assembly frame extends horizontally on one side of the lower filter box. A fixed seat is fixedly installed between the flow hood and the assembly frame. A conveying channel is provided inside the assembly frame. The lower filter box and the feed inlet are connected through the conveying channel. And / or the fixed seat includes an upper fixed seat and a lower fixed seat connected vertically. The dust collection component is a fan. The fan is mounted on the side of the upper fixed seat near the lower fixed seat with the blades facing downward and rotating horizontally.

4. The photovoltaic panel cleaning device according to claim 3, characterized in that: A baffle plate is provided on the side of the conveying channel near the lower filter box. The baffle plate has multiple through holes, and the conveying channel and the lower filter box are connected through the through holes.

5. The photovoltaic panel cleaning device according to claim 1, characterized in that: There are two vacuuming mechanisms and two walking mechanisms. The two vacuuming mechanisms are located on the front and rear sides of the cleaning mechanism, and the two walking mechanisms are located on the left and right sides of the cleaning mechanism.

6. The photovoltaic panel cleaning device according to claim 1, characterized in that: The cleaning assembly includes roller brush seats fixedly installed on the left and right ends of one side of the fixed base and a spiral roller brush unit detachably installed between the two roller brush seats. The spiral roller brush unit is connected to a roller brush drive for driving the spiral roller brush unit to rotate.

7. The photovoltaic panel cleaning device according to claim 6, characterized in that: A first bushing and a second bushing are rotatably mounted on two roller brush seats respectively. An elastic element is provided on the first bushing. The spiral roller brush unit includes a roller brush shaft and a spiral roller brush disposed on the roller brush shaft. One end of the roller brush shaft is detachably inserted into the first bushing and compresses the elastic element. The other end of the roller brush shaft is detachably inserted into the second bushing under the elastic force of the elastic element and forms a circumferential anti-rotation limit.

8. The photovoltaic panel cleaning device according to claim 7, characterized in that: The spiral roller brush includes a spiral fixing plate and multiple cleaning brushes disposed on the spiral fixing plate. The spiral fixing plate is arranged spirally on the outer wall of the roller brush shaft.

9. The photovoltaic panel cleaning device according to claim 1, characterized in that: The traveling mechanism includes a traveling drive component, a support frame, a first track wheel, a second track wheel, a third track wheel, an elastic buffer seat, and tracks. The first track wheel and the second track wheel are rotatably mounted at the front and rear ends of the support frame, respectively. The traveling drive component is driven to the first track wheel or the second track wheel. The elastic buffer seat is located on the support frame above the first track wheel and the second track wheel. The third track wheel is rotatably mounted on the elastic buffer seat to achieve elastic vertical telescopic movement. Tracks are fitted onto the first track wheel, the second track wheel, and the third track wheel.

10. The photovoltaic panel cleaning device according to claim 9, characterized in that: The elastic buffer seat includes an upper fixed frame, an elastic buffer component, and a lower fixed frame installed in sequence. The lower fixed frame is fixedly installed above the middle part of the support frame, and the third track wheel is rotatably installed inside the upper fixed frame.

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