Photovoltaic panel cleaning equipment

Abstract

The present application discloses a photovoltaic panel cleaning device, which belongs to the field of photovoltaic panel cleaning technology, including a device body, which is arranged in a rectangular structure as a whole, and the bottom of the device body is provided with an installation angle code for installation between the device body and the ground, and a mobile cleaning body, which is stored in the inside of the reserved groove, and the mobile cleaning body includes a pulling body, a cleaning body, a moving body and a wiping body. The device is provided with a mobile cleaning body, which can be completely stored in the inside of the device body, achieving the effect of complete storage and protection, and does not take up a lot of space. When it moves out of the reserved groove, the pulling body cooperates with the auxiliary setting of an external drone, so that the entire cleaning body can drive the wiping body to perform long-distance mobile cleaning work on a batch of photovoltaic components to be cleaned. Therefore, under the premise of ensuring that the entire device does not take up a lot of space, it can also ensure that the entire device can quickly perform batch cleaning work.

Description

Technical Field

[0001] The present application relates to the technical field related to photovoltaic panel cleaning, and in particular to a photovoltaic panel cleaning device. Background Art

[0002] Photovoltaic panel cleaning is crucial for ensuring efficient operation of photovoltaic systems. Dust, dirt, bird droppings, and other debris on the surface of photovoltaic panels can block sunlight, reducing the panels' absorption of sunlight and, consequently, lowering power generation efficiency. Research has shown that dirty photovoltaic panels can reduce power generation efficiency by 10%-30% or even more compared to clean ones. Long-term accumulation of dirt can corrode the glass cover panels, affecting their light transmission and mechanical strength, thus shortening the panels' service life. Therefore, cleaning devices are essential for cleaning photovoltaic panels.

[0003] In the current market, photovoltaic panel cleaning typically involves the use of automated cleaning robots, which, through pre-programmed procedures, automatically clean the panels at set times and along a set path. These robots typically employ brushing, spraying, and other cleaning methods, such as the cleaning device disclosed in Application No. 202210092740.7, for photovoltaic panel cleaning equipment. Alternatively, each photovoltaic panel may be equipped with a cleaning component to clean the panels.

[0004] However, the above-mentioned photovoltaic panel cleaning device uses robots for cleaning, which reduces human intervention, but is only suitable for small photovoltaic power stations. For large-scale photovoltaic power stations, using robots to clean a single photovoltaic panel at a time will cause the entire cleaning process to take a lot of time, and the cost of the equipment is high. When corresponding cleaning components are set on each photovoltaic panel to quickly complete the cleaning work, the cost of the photovoltaic panel will be high. At the same time, the setting of multiple cleaning components will also lead to a decrease in the number of photovoltaic panels installed in the same area, thereby reducing power generation. In the existing market, there is also the installation of cleaning components between drones to complete the cleaning work, but when the drone is operating, it requires manual operation for a long time to complete the thorough cleaning work. At the same time, it takes time to control the operation trajectory of the drone to ensure that the photovoltaic panel is thoroughly cleaned, otherwise incomplete cleaning will occur. Summary of the Invention

[0005] One of the purposes of the present application is to provide a photovoltaic panel cleaning device to solve the problem that the existing photovoltaic panel cleaning device consumes a lot of manpower, material resources, financial resources and time to complete the cleaning automatically when in use.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: a photovoltaic panel cleaning device, comprising a device body, which is arranged in a rectangular structure as a whole, a mounting bracket is provided at the bottom of the device body for installation between the device body and the ground, and a reserved groove is embedded in the top of the device body;

[0007] A mobile cleaning body is housed inside a reserved groove. The mobile cleaning body includes a pulling body, a cleaning body, a moving body and a wiping body. Two groups of mobile bodies are symmetrically arranged inside the reserved groove, and a mobile pulling body is arranged in the middle of the two groups of mobile bodies. The top of the pulling body is connected to the cleaning body, and a wiping body is arranged in the middle of the bottom of the cleaning body. A walking body is arranged at the bottom of the cleaning body for controlling the cleaning body to perform active movement.

[0008] Preferably, the interior of the device body is provided with a hollow structure, and the top thereof is provided with a mesh structure for the entry of water, and a spray assembly is further provided on the outer wall of the device body for spraying water;

[0009] The spray assembly includes a water pump, a connecting water pipe, a high-pressure nozzle and a water inlet pipe. The water pump bolt is installed on the outer wall of the equipment body, and the top end thereof penetrates the connecting water pipe and the water inlet pipe respectively. The water inlet pipe is arranged below the hollow structure inside the equipment body for pumping water. The connecting water pipe is arranged above the hollow structure inside the equipment body, and the top end thereof is connected to the high-pressure nozzle. The high-pressure nozzle is arranged at a position slightly above the top end of the equipment body.

[0010] Preferably, the pulling body includes a steel wire rope, a winding shaft and a dual-axis motor, two sets of winding shafts are coaxially connected on both sides of the dual-axis motor, a steel wire rope is wound around the outside of the winding shaft, and the top of the steel wire rope is connected to the cleaning body.

[0011] Preferably, the cleaning body includes two groups of rotating rollers and a conveyor belt, the two groups of rotating rollers are provided with a conveyor belt on the outside, and the outer sides of the two groups of rotating rollers are connected by a limiting rod, the limiting rod and the rotating rollers are connected by a bearing, the top end of one of the rotating rollers is coaxially connected to a drive motor, and the drive motor bolt is installed on the outside of the limiting rod.

[0012] Preferably, there are two groups of limit rods symmetrically arranged about the central axis of the rotating roller, and an intermediate plate is integrally installed in the middle of the two groups of limit rods. The intermediate plate is arranged above the limit rod, and a walking body is also provided at the bottom of the limit rod to assist the cleaning body in flexibly moving on the photovoltaic panel.

[0013] Preferably, a protruding plate is integrally installed on the top of the limiting rod, and the cross-section of the protruding plate is arranged in an "L"-shaped structure, and the highest point of the protruding plate is higher than the highest point of the conveyor belt. A wiping body is connected in the middle below the conveyor belt for wiping and cleaning the surface of the photovoltaic panel.

[0014] Preferably, the movable body includes a control motor, a rotating screw, a movable sleeve and a fixed cover. The top end of the control motor is coaxially connected to the rotating screw, and the external thread of the rotating screw is connected to the movable sleeve. The top end of the movable sleeve is integrally installed with a fixed cover, and the fixed cover is connected to the pulling body by a bearing.

[0015] Preferably, the pulling body and the cleaning body are arranged inside the reserved groove for storage and protection, and the pulling body and the cleaning body are moved and extended by the moving body.

[0016] Preferably, the wiping body includes a connecting frame, a telescopic cylinder, a mounting cover and wiping cotton. The connecting frame is arranged at the bottom of the conveyor belt, and a telescopic cylinder is arranged on the inner side thereof to be connected to the mounting cover. The bottom of the mounting cover and the wiping cotton are engaged with each other.

[0017] Preferably, the lowest point of the walking body is at the same height as the surface of the photovoltaic panel to be cleaned, and a limiting horizontal plate is provided at the top of the reserved groove to support and limit the cleaning body.

[0018] Preferably, the walking body includes a driving motor, a walking wheel and a mounting frame, the mounting frame is fixed to the bottom of the limiting rod, and the middle bearing thereof is connected to the walking wheel, the outer side of the walking wheel is coaxially connected to the driving motor, and the driving motor is bolted to the outside of the mounting frame.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] (1) A mobile cleaning body is provided, which can be completely stored inside the main body of the equipment, achieving the effect of complete storage and protection without taking up a large amount of space. When it moves out of the reserved slot, the pulling body cooperates with the auxiliary setting of the external drone, so that the entire cleaning body can drive the wiping body to perform long-distance mobile cleaning work on the batch of photovoltaic components to be cleaned. Therefore, under the premise of ensuring that the entire device does not take up a large amount of space, it can also ensure that the entire device can quickly perform batch cleaning work. Compared with the robot cleaning on the existing market, it is more efficient and has lower cost. Compared with directly controlling the cleaning component to clean the photovoltaic panel through the drone, there is no need to accurately control the movement trajectory of the drone, and it only needs to assist in pushing the cleaning component to slide out, and there is no need to spend time controlling the cleaning component to retract, which shortens the human operation time of the drone, reduces the burden on the staff, and has higher cleaning efficiency.

[0021] (2) A wiping body is provided, which is arranged at the bottom of the cleaning body. It can move back and forth with the cleaning body to wipe the surface of the photovoltaic panel, ensuring that a single movement of the cleaning body can complete the thorough cleaning work, and there will be no phenomenon of incomplete cleaning. At the same time, there is no need for secondary cleaning, thereby achieving the purpose of reducing the workload.

[0022] (3) A spray assembly is provided, which recycles rainwater through the interior of the equipment body. In combination with the high-pressure nozzle at the top of the spray assembly, the photovoltaic panels can be sprayed initially. After that, the panels can be cleaned automatically. Rainwater can be recycled automatically, which is more environmentally friendly and does not require manual spraying. Therefore, when the photovoltaic panels are in a relatively complex environment such as a mine, the entire cleaning equipment can also perform efficient cleaning work on its own, with less human intervention and high operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of the mobile cleaning body extending out of the device body of the present invention.

[0024] Figure 2 This is a structural diagram of the mobile cleaning body of the present invention housed in the device body.

[0025] Figure 3 This is a partially enlarged structural diagram of the movable cleaning body of the present invention being engaged in the reserved groove.

[0026] Figure 4 This is a schematic diagram of the structure of the mobile cleaning body of the present invention when viewed from above.

[0027] Figure 5 This is a schematic diagram of the structure of the mobile cleaning body of the present invention from a top view.

[0028] Figure 6 This is a schematic diagram of the half-section structure of the cleaning body of the present invention.

[0029] Figure 7 This is an enlarged structural diagram of the wiping body of the present invention.

[0030] Figure 8 This is a schematic diagram of a partially enlarged structure of the cleaning body of the present invention when viewed from above;

[0031] Figure 9 This is a schematic diagram of a partially enlarged structure of the connection between the protruding plate and the limiting rod of the present invention;

[0032] Figure 10 This is an enlarged structural diagram of the walking body at the bottom of the limiting rod of the present invention;

[0033] Figure 11This is a schematic diagram of the cleaning body of the present invention, half cut away and viewed from above;

[0034] Figure 12 This is a schematic diagram of the half-section structure of the main body of the device of the present invention;

[0035] Figure 13 This is a partially enlarged structural diagram of the top half-section of the device body of the present invention;

[0036] Figure 14 It is a schematic diagram of the enlarged structure of the spray body of the present invention.

[0037] In the figure: 1. Equipment body; 101. Reserved slot; 2. Pulling body; 21. Steel wire rope; 22. Winding reel; 23. Dual-axis motor; 3. Cleaning body; 31. Rotating roller; 32. Limiting rod; 33. Driving motor; 34. Conveyor belt; 35. Protruding plate; 36. Middle plate; 4. Moving body; 41. Control motor; 42. Rotating screw; 43. Moving sleeve; 44. Fixed cover; 5. Wiping body; 51. Connecting frame; 52. Telescopic cylinder; 53. Mounting cover; 54. Wiping cotton; 6. Walking body; 61. Driving motor; 62. Walking wheel; 63. Mounting frame; 7. Spraying assembly; 71. Water pump; 72. Connecting water pipe; 73. High-pressure nozzle; 74. Water inlet pipe. DETAILED DESCRIPTION

[0038] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0039] In the description of the present application, it should be noted that, for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction; being constructed and operated in a specific direction cannot be understood as limiting the specific scope of protection of the present application.

[0040] It should be noted that the terms "first" and "second" in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0041] A preferred embodiment of the present application is as follows Figures 1 to 14As shown, a photovoltaic panel cleaning device includes a device body 1, which is arranged in a rectangular structure as a whole. The bottom of the device body 1 is provided with a mounting angle bracket for installation between the device body and the ground, and the top of the device body 1 is embedded with a reserved groove 101;

[0042] The mobile cleaning body is accommodated in the reserved groove 101. The mobile cleaning body includes a pulling body 2, a cleaning body 3, a moving body 4 and a wiping body 5. The mobile body 4 is symmetrically arranged in two groups inside the reserved groove 101, and a mobile pulling body 2 is arranged in the middle of the two groups of mobile bodies 4. The top of the pulling body 2 is connected to the cleaning body 3, and a wiping body 5 is arranged in the middle of the bottom of the cleaning body 3. A walking body 6 is provided at the bottom of the cleaning body 3 for controlling the cleaning body 3 to perform active movement;

[0043] The present application provides a photovoltaic panel cleaning device. Specifically, when in use, first, different numbers of device bodies 1 can be selected according to the lengths of the photovoltaic panels to be cleaned. After the initial installation of the photovoltaic panels is completed, if the installation length of the photovoltaic panels is too long, it is necessary to install a device body 1 on both sides of the photovoltaic panel assembly so that the device body 1 is installed between the ground. After the installation is completed, when it is necessary to clean the top of the photovoltaic panel assembly, it is necessary to start the moving body 4 inside the reserved groove 101 so that it drives the cleaning body 3 and the pulling body 2 to move outward and then extend out of the reserved groove 101. After that, the pulling body 2 releases the pulling limit of the cleaning body 3, and then controls the walking body 6 to work so that it actively controls the cleaning body 3 to move on the photovoltaic panel. While moving, the cleaning body 3 continuously moves back and forth to drive the wiping body 5 to wipe the surface of the photovoltaic panel, thereby achieving the effect of cleaning the photovoltaic panel.

[0044] Since the device main body 1 is provided on both sides of the photovoltaic panel assembly, the two device main bodies 1 move toward each other at the same time, and thus the surface of the photovoltaic panel assembly laid at equal intervals can be quickly cleaned;

[0045] In order to ensure more thorough cleaning, Figure 12 、 Figure 13 and Figure 14 As shown, a hollow structure is provided inside the device body 1, and a mesh structure is provided at the top thereof for water to enter. A spray assembly 7 is also provided on the outer wall of the device body 1 for spraying water.

[0046] The spray assembly 7 includes a water pump 71, a connecting water pipe 72, a high-pressure nozzle 73 and a water inlet pipe 74. The water pump 71 is bolted to the outer wall of the device body 1, and its top end penetrates the connecting water pipe 72 and the water inlet pipe 74 respectively. The water inlet pipe 74 is arranged below the hollow structure inside the device body 1 for pumping water. The connecting water pipe 72 is arranged above the hollow structure inside the device body 1, and its top end is connected to the high-pressure nozzle 73. The high-pressure nozzle 73 is arranged at a position slightly above the top of the device body 1.

[0047] When cleaning, it is necessary to start the water pump 71 on the outer wall of the device body 1 so that the water stored in the device body 1 is sucked through the water inlet pipe 74, and then sucked into the inside of the connecting water pipe 72, and then sprayed out at the top of the high-pressure nozzle 73, thereby removing the loose dust and dirt attached to the photovoltaic panel;

[0048] In the present application, since the interior of the device body 1 is set as a hollow structure and a mesh structure is set on its top, rainwater can be automatically collected to achieve the purpose of making full use of resources and be more energy-saving and environmentally friendly.

[0049] Among them, according to Figure 3 and Figure 4 As shown, the pulling body 2 includes a steel wire cable 21, a winding shaft 22 and a dual-axis motor 23. Two sets of winding shafts 22 are coaxially connected to both sides of the dual-axis motor 23. The steel wire cable 21 is wound around the outside of the winding shaft 22. The top of the steel wire cable 21 is connected to the cleaning body 3.

[0050] Specifically, when the cleaning body 3 is limited and pulled by pulling the main body 2, when the limit needs to be released, the dual-axis motor 23 needs to be started to drive the winding shafts 22 on both sides thereof to rotate. When rotating, it will work with the wire rope 21 to release the wire. Since the top end of the wire rope 21 is connected to the outside of the cleaning body 3, the wire rope 21 will not pull the cleaning body 3. Therefore, when the external drone equipment pushes the cleaning body 3, the cleaning body 3 will move on the surface of the photovoltaic module, thereby achieving the effect of cleaning the photovoltaic module.

[0051] Later, after cleaning is completed, when the cleaning body 3 needs to be stored, it is only necessary to control the reverse rotation of the reel 22. At this time, it will pull the wire rope 21, thereby pulling the cleaning body 3 until the cleaning body 3 is completely moved to the side of the pulling body 2.

[0052] Further, according to Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 As shown, the cleaning body 3 includes two groups of rotating rollers 31 and a conveyor belt 34. The conveyor belt 34 is provided on the outside of the two groups of rotating rollers 31, and the outer sides of the two groups of rotating rollers 31 are connected by a limiting rod 32. The limiting rod 32 and the rotating rollers 31 are connected by a bearing. The top end of one of the rotating rollers 31 is coaxially connected to a drive motor 33, and the drive motor 33 is bolted to the outside of the limiting rod 32.

[0053] The limiting rods 32 are symmetrically arranged in two groups about the central axis of the rotating roller 31, and an intermediate plate 36 is integrally installed in the middle of the two groups of limiting rods 32. The intermediate plate 36 is arranged at an upper position of the limiting rods 32. A walking body 6 is also provided at the bottom of the limiting rods 32 to assist the cleaning body 3 in flexibly moving on the photovoltaic panel.

[0054] A protruding plate 35 is integrally mounted on the top of the limiting rod 32, and the cross-section of the protruding plate 35 is arranged in an "L"-shaped structure, and the highest point of the protruding plate 35 is higher than the highest point of the conveyor belt 34. A wiping body 5 is connected to the middle below the conveyor belt 34 for wiping and cleaning the surface of the photovoltaic panel.

[0055] Among them, first, after the entire cleaning body 3 extends out of the reserved groove 101, it is also possible to control the external drone to be inside the protruding plate 35, so that the drone is controlled to move outward, which will push the protruding plate 35 to move. Since the protruding plate 35 is connected to the limit rod 32, it will cause the rotating roller 31 and the conveyor belt 34 to move together;

[0056] When the cleaning body 3 is moving, it is necessary to start the drive motor 33 to continuously rotate forward and reverse, so that it drives the rotating roller 31 to rotate forward and reverse, and then the conveyor belt 34 continuously drives the wiping body 5 at the bottom to move back and forth. When the wiping body 5 continuously moves back and forth, it will wipe the surface of the photovoltaic panel back and forth to achieve the effect of thorough cleaning.

[0057] When wiping, according to Figure 7 As shown, the wiping body 5 includes a connecting frame 51, a telescopic cylinder 52, a mounting cover 53 and a wiping cotton 54. The connecting frame 51 is arranged at the bottom of the conveyor belt 34, and a telescopic cylinder 52 is provided inside the connecting frame 51 to connect with the mounting cover 53. The bottom of the mounting cover 53 and the wiping cotton 54 are engaged with each other.

[0058] Specifically, when wiping is required, the telescopic cylinder 52 can be started first, so that it drives the mounting cover 53 to descend, and then the wiping cotton 54 engaged therein is lowered to contact the surface of the photovoltaic panel. After that, the top of the connecting frame 51 is driven back and forth by the conveyor belt 34, so that the wiping cotton 54 wipes the surface of the photovoltaic panel back and forth, thereby completing the wiping and cleaning work.

[0059] Since a slider is provided at the top of the connecting frame 51 to slide within the sliding groove at the bottom of the middle plate 36 , the entire wiping body 5 can be stably moved without shaking.

[0060] When storing, according to Figure 2 、 Figure 3 and Figure 4 As shown, the moving body 4 includes a control motor 41, a rotating screw 42, a moving sleeve 43 and a fixed cover 44. The top of the control motor 41 is coaxially connected to the rotating screw 42, and the external thread of the rotating screw 42 is connected to the moving sleeve 43. The top of the moving sleeve 43 is integrally installed with a fixed cover 44, and the fixed cover 44 is connected to the pulling body 2 by a bearing.

[0061] First, the pulling body 2 is at the top position of the moving body 4, and the outer side of the pulling body 2 is set at the edge of the cleaning body 3. Therefore, the pulling body 2 and the cleaning body 3 are completely engaged in the reserved groove 101 at this time. When cleaning work is required, it is necessary to start the control motor 41 to drive the rotating screw 42 to rotate. When it rotates, it will be threadedly connected with the moving sleeve 43, so that the moving sleeve 43 drives the fixed cover 44 to move to the outside of the reserved groove 101, and the moving sleeve 43 will drive the pulling body 2 and the cleaning body 3 to move outward together. When the cleaning body 3 is completely moved out, it will be on the surface of the photovoltaic panel. Therefore, through the walking of the walking body 6 and the auxiliary push of the drone, the entire cleaning body 3 will be moved over a long distance to achieve the cleaning effect.

[0062] In this application, according to Figure 2 and Figure 3 As shown, the pulling body 2 and the cleaning body 3 are arranged inside the reserved groove 101 for storage and protection, and the pulling body 2 and the cleaning body 3 are moved and extended by the moving body 4.

[0063] Furthermore, according to Figure 3 As shown, the lowest point of the walking body 6 is at the same height as the surface of the photovoltaic panel to be cleaned, and a limiting horizontal plate is provided at the top of the reserved groove 101 to support and limit the cleaning body 3;

[0064] The setting of the limiting horizontal plate can ensure that when the cleaning body 3 moves into the reserved groove 101, its top end will be limited by the limiting horizontal plate, ensuring that it can move directly to the surface of the photovoltaic panel after it is extended.

[0065] The walking body 6 includes a driving motor 61, a walking wheel 62 and a mounting frame 63. The mounting frame 63 is fixed to the bottom of the limiting rod 32, and the walking wheel 62 is connected to the middle bearing thereof. The outer side of the walking wheel 62 is coaxially connected to the driving motor 61, and the driving motor 61 is bolted to the outside of the mounting frame 63.

[0066] When the walking body 6 reaches the top of the photovoltaic panel surface, it is necessary to start the drive motor 61 so that it drives the walking wheel 62 to rotate, so that the walking wheel 62 moves on the photovoltaic panel, completing the purpose of driving the limit rod 32 to move, thereby completing the movement of the cleaning body 3.

[0067] The above describes the basic principles of the present application, as well as the main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application, and such changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic panel cleaning device, characterized in that: include; The device body (1) is arranged in a rectangular structure as a whole. The bottom of the device body (1) is provided with a mounting angle bracket for mounting between the device body and the ground. The top of the device body (1) is embedded with a reserved groove (101). A mobile cleaning body is accommodated in the reserved groove (101), and the mobile cleaning body comprises a pulling body (2), a cleaning body (3), a moving body (4) and a wiping body (5). Two groups of the mobile bodies (4) are symmetrically arranged in the reserved groove (101), and a mobile pulling body (2) is arranged in the middle of the two groups of the mobile bodies (4). The top of the pulling body (2) is connected to the cleaning body (3), and a wiping body (5) is arranged in the middle of the bottom of the cleaning body (3). A walking body (6) is arranged at the bottom of the cleaning body (3) for controlling the cleaning body (3) to perform active movement. The pulling body (2) and the cleaning body (3) are arranged inside the reserved groove (101) for storage and protection, and the pulling body (2) and the cleaning body (3) are moved and extended by the moving body (4); The interior of the device body (1) is provided with a hollow structure, and the top thereof is provided with a mesh structure for the entry of water. A spray assembly (7) is also provided on the outer wall of the device body (1) for spraying water. The spray assembly (7) includes a water pump (71), a connecting water pipe (72), a high-pressure nozzle (73) and a water inlet pipe (74). The water pump (71) is bolted to the outer wall of the device body (1), and its top end penetrates the connecting water pipe (72) and the water inlet pipe (74) respectively. The water inlet pipe (74) is arranged below the hollow structure inside the device body (1) for pumping water. The connecting water pipe (72) is arranged above the hollow structure inside the device body (1), and its top end is connected to the high-pressure nozzle (73). The high-pressure nozzle (73) is arranged at a position slightly above the top end of the device body (1). The pulling body (2) comprises a steel wire rope (21), a winding shaft (22) and a double-axis motor (23), two sets of winding shafts (22) are coaxially connected to the two sides of the double-axis motor (23), a steel wire rope (21) is wound around the outside of the winding shaft (22), and the top end of the steel wire rope (21) is connected to the cleaning body (3); The cleaning body (3) comprises two groups of rotating rollers (31) and a conveyor belt (34). The conveyor belt (34) is provided outside the two groups of rotating rollers (31), and the outer sides of the two groups of rotating rollers (31) are connected by a limiting rod (32). The limiting rod (32) and the rotating rollers (31) are connected by a bearing. The top end of one of the rotating rollers (31) is coaxially connected to a driving motor (33), and the driving motor (33) is bolted to the outer side of the limiting rod (32).

2. A photovoltaic panel cleaning device according to claim 1, characterized in that: Two groups of the limiting rods (32) are symmetrically arranged about the central axis of the rotating roller (31), and an intermediate plate (36) is integrally installed in the middle of the two groups of limiting rods (32). The intermediate plate (36) is arranged above the limiting rods (32). A walking body (6) is also arranged at the bottom of the limiting rods (32) for assisting the cleaning body (3) to move flexibly on the photovoltaic panel.

3. The photovoltaic panel cleaning device according to claim 1, wherein: A protruding plate (35) is integrally mounted on the top end of the limiting rod (32), and the cross-section of the protruding plate (35) is arranged in an "L"-shaped structure, and the highest point of the protruding plate (35) is higher than the highest point of the conveyor belt (34). A wiping body (5) is connected to the middle below the conveyor belt (34) for wiping and cleaning the surface of the photovoltaic panel.

4. A photovoltaic panel cleaning device according to claim 2, characterized in that: The movable body (4) comprises a control motor (41), a rotating screw (42), a movable sleeve (43) and a fixed cover (44); the top end of the control motor (41) is coaxially connected to the rotating screw (42), and the external thread of the rotating screw (42) is connected to the movable sleeve (43); the top end of the movable sleeve (43) is integrally mounted with a fixed cover (44), and the fixed cover (44) is connected to the pulling body (2) via a bearing.

5. The photovoltaic panel cleaning device according to claim 3, characterized in that: The wiping body (5) comprises a connecting frame (51), a telescopic cylinder (52), a mounting cover (53) and a wiping cotton (54). The connecting frame (51) is arranged at the bottom of the conveyor belt (34), and a telescopic cylinder (52) is provided inside the connecting frame to connect with the mounting cover (53). The bottom of the mounting cover (53) and the wiping cotton (54) are engaged with each other.

6. A photovoltaic panel cleaning device according to claim 3, characterized in that: The lowest point of the walking body (6) is at the same height as the surface of the photovoltaic panel to be cleaned, and a limiting horizontal plate is provided at the top of the reserved groove (101) to support and limit the cleaning body (3).

7. A photovoltaic panel cleaning device according to claim 4, characterized in that: The walking body (6) comprises a driving motor (61), a walking wheel (62) and a mounting frame (63). The mounting frame (63) is fixed to the bottom of the limiting rod (32), and the middle bearing thereof is connected to the walking wheel (62). The outer side of the walking wheel (62) is coaxially connected to the driving motor (61), and the driving motor (61) is bolted to the outside of the mounting frame (63).

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