Photovoltaic panel cleaning robot

Abstract

The utility model relates to the technical field of photovoltaic panel cleaning, and discloses a photovoltaic panel cleaning robot which comprises a moving device and a cleaning device. The moving device comprises a mainframe box, a suspension wheel and a power wheel; the suspension wheel is fixed at the top of the mainframe box and is in rolling fit with the top edge of the photovoltaic panel, the power wheel is in rolling fit with the photovoltaic panel, and a driving structure for driving the power wheel to rotate is arranged in the mainframe box; the cleaning device comprises a telescopic mechanism and a cleaning mechanism, the telescopic mechanism is installed on the mainframe box, the cleaning mechanism is connected with the telescopic mechanism, and the telescopic mechanism is used for driving the cleaning mechanism to longitudinally move along the surface of the photovoltaic panel; in the scheme, the driving structure, the suspension wheel and the power wheel are arranged together, equivalently, the upper limiting mechanism is directly driven to move, the cleaning mechanism is easily driven to move along with the upper limiting mechanism, and the design is more reasonable; the cleaning mechanism is driven by the moving device to move and clean, a lower limiting mechanism and a lower limiting telescopic rod do not need to be arranged, the structure is simpler, the action is simpler and more convenient, and the cost is lower.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic panel cleaning technical field more specifically, relate to a photovoltaic panel cleaning robot. BACKGROUND

[0002] The popularization of photovoltaic power generation also faces related problems, and the most important problem is the cleaning of photovoltaic panels. Dust and dirt on the surface of photovoltaic panels can greatly reduce power generation efficiency, increase the temperature of photovoltaic panels, and reduce the service life of photovoltaic panels. Photovoltaic panels are usually installed in high-altitude and remote areas, which are not convenient for regular manual cleaning. Snow in winter also affects the working efficiency of photovoltaic panels, and heavy snow may even damage photovoltaic panels. Therefore, photovoltaic panel cleaning robots have emerged as the times require in the snow removal scene. They have become key tools to ensure the stable operation of photovoltaic systems due to their high efficiency, safety, and intelligence.

[0003] The invention patent application with the application publication number CN117978079A discloses an intelligent photovoltaic cleaning robot, system and working method thereof. The robot includes a main frame, a plurality of upper and lower limit extension rods are fixedly connected to the upper side of the main frame, the movable ends of the upper and lower limit extension rods are respectively fixedly connected to a limiting mechanism, the two limiting mechanisms are respectively used to cooperate with the upper and lower frames of the photovoltaic panel, a driving mechanism is used to control the movement of the main frame on the photovoltaic panel, and a cleaning mechanism is used to clean the upper surface of the photovoltaic panel.

[0004] After installation, the main frame is located in the middle of the photovoltaic panel, the driving mechanism and the cleaning mechanism are installed on the main frame, and the main frame needs to move horizontally along the surface of the photovoltaic panel through the cooperation of the upper and lower two sets of limiting mechanisms, the upper limit extension rods and the lower limit extension rods. It is relatively cumbersome and has a relatively complex structure and high cost. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects of the prior art, and provides a photovoltaic panel cleaning robot to solve the technical problems that the main frame needs to move horizontally along the surface of the photovoltaic panel through the cooperation of the upper and lower two sets of limiting mechanisms, the upper limit extension rods and the lower limit extension rods, which is relatively cumbersome, has a relatively complex structure and high cost.

[0006] The utility model discloses adopt technical scheme is, a kind of photovoltaic panel cleaning robot, including mobile device and cleaning device;The mobile device includes host box, suspension wheel and power wheel;The suspension wheel is fixed in host box top, with photovoltaic panel top end edge rolling cooperation, while play the role of preventing robot from falling.The power wheel is rolled with photovoltaic panel surface cooperation, and driving structure for driving power wheel rotation is provided in the host box;The cleaning device includes telescopic mechanism and cleaning mechanism, and the telescopic mechanism is installed on host box, and the cleaning mechanism is connected with telescopic mechanism, and the telescopic mechanism is used to drive cleaning mechanism along photovoltaic panel surface longitudinal movement.

[0007] The whole weight of the photovoltaic panel cleaning robot is applied to the top edge of the photovoltaic panel through the suspension wheel, so the suspension wheel and the top edge of the photovoltaic panel generate a larger force, and the resistance during movement is larger. If the power is arranged on the cleaning mechanism, the structure between the cleaning mechanism and the host box needs to bear a larger bending stress. In the present scheme, the driving structure, the suspension wheel and the power wheel are arranged together, which is equivalent to directly driving the upper limiting mechanism to move, and the cleaning mechanism is easily moved, and the design is more reasonable. The cleaning mechanism can be moved and cleaned by the mobile device, and it is not necessary to arrange a lower limiting mechanism and a lower limiting telescopic rod, so the structure is simpler, the action is more convenient, and the cost is lower.

[0008] Further, the telescopic mechanism includes a scissor telescopic frame and a second driving component, the scissor telescopic frame has two ends, which are a first end and a second end, the first end of the scissor telescopic frame is connected with the host box, the second end of the scissor telescopic frame is connected with the cleaning mechanism, and the second driving component is used to drive the scissor telescopic frame to extend and retract. The scissor telescopic frame can bear a larger bending stress, and has stronger structural stability.

[0009] Further, each end of the scissor telescopic frame is provided with two connecting ends, which are a fixed end and a movable end, the fixed end of the first end of the scissor telescopic frame is fixedly connected with the host box, and the movable end is slidingly connected with the host box, the second driving component is installed in the host box and used to drive the movable end of the first end of the scissor telescopic frame to slide relative to the fixed end, the fixed end of the second end of the scissor telescopic frame is fixedly connected with the cleaning mechanism, and the movable end of the second end of the scissor telescopic frame is slidingly connected with the cleaning mechanism.

[0010] Further, the second driving component includes a driving motor, a lead screw and a sliding block, the lead screw is rotatably installed in the host box, the driving motor is installed in the host box and used to drive the lead screw to rotate, the sliding block is slidingly connected in the host box, the sliding block is threadedly connected with the lead screw through a threaded hole arranged thereon, and the sliding end of the first end of the scissor telescopic frame is fixedly connected with the sliding block. The lead screw is driven to rotate by the driving motor, so that the sliding block is driven to slide, and the sliding end of the first end of the scissor telescopic frame is driven to move by the sliding block, so that the extension and retraction control of the scissor telescopic frame can be realized.

[0011] Further, the telescopic mechanism is an electric push rod, one end of the electric push rod is fixedly connected with the main box, and the other end is fixedly connected with the cleaning mechanism. The telescopic movement of the electric push rod can drive the cleaning mechanism to move along the longitudinal direction of the photovoltaic panel. The electric push rod can be selected according to the longitudinal size of the photovoltaic panel.

[0012] Further, the telescopic mechanism comprises a driving component three, a transmission gear, an intermediate frame and a folding rod. The main box is pivotally connected with the intermediate frame through the folding rod, the intermediate frame is pivotally connected with the cleaning mechanism through the folding rod, one end of the folding rod is provided with the transmission gear, and the transmission gears at the two ends of the folding rod pivotally connected with the intermediate frame are engaged. The driving component three is movably connected on the main box, and the telescopic end of the driving component three is movably connected on the folding rod between the main box and the intermediate frame. When the driving component three drives the folding rod between the main box and the intermediate frame to fold, the folding rod between the main box and the intermediate frame drives the folding rod between the intermediate frame and the roller frame to fold through the transmission gear, so that the cleaning mechanism can move and clean along the longitudinal direction of the photovoltaic panel. The folding rod is light in weight after folding, and is more suitable for the photovoltaic panel cleaning robot to move and clean on the photovoltaic panel.

[0013] Further, the telescopic mechanism comprises a fixed fork, an intermediate fork, a front fork and a driving assembly. The fixed fork is fixedly connected on the main box, the intermediate fork is slidably connected on the fixed fork, and the front fork is slidably connected on the intermediate fork. The intermediate fork can be slid out of the fixed fork, and the front fork can be slid out of the intermediate fork through the driving assembly. The front fork is slidably telescoped on the intermediate fork, and the intermediate fork is slidably telescoped on the fixed fork through the driving assembly. In this way, the cleaning structure can be driven to move and clean along the longitudinal direction of the photovoltaic panel. This telescoping mode is flexible and not easy to jam, but the cost is relatively increased. The actual situation can be selected.

[0014] Further, the cleaning mechanism comprises a roller frame and an electric brush roller. The electric brush rollers are arranged in parallel on the roller frame and are not less than two. The photovoltaic panel is cleaned by the electric brush rollers. The cleaning efficiency and cleaning quality of the photovoltaic panel can be improved by arranging not less than two electric brush rollers. When applied to a snow removal scene, the snow removal efficiency can be effectively improved.

[0015] Further, universal wheels are installed on the roller frame, the universal wheels are arranged one-to-one corresponding to the cleaning rollers, and the universal wheels are rollingly matched with the photovoltaic panel. The universal wheels are used to support the roller frame, so that the cleaning rollers have a proper distance from the photovoltaic panel, thereby improving the cleaning quality.

[0016] Further, the power wheels are arranged on both sides of the main box correspondingly, when the power wheels on both sides contact with the photovoltaic panel, the main box has a gap with the photovoltaic panel, the height dimension of the gap is greater than the diameter of the cleaning roller. The gap can make the cleaning roller close to the main box pass, so that the top edge of the photovoltaic panel can be cleaned, and the photovoltaic panel can be cleaned completely.

[0017] Compared with the prior art, the photovoltaic panel cleaning robot has the advantages that: the whole weight of the photovoltaic panel cleaning robot acts on the top edge of the photovoltaic panel through the suspension wheel, so that the force generated by the suspension wheel and the top edge of the photovoltaic panel is large, and the resistance during movement is large; if the power is arranged on the cleaning mechanism, the structure between the cleaning mechanism and the main box needs to bear large bending stress; in the scheme, the driving structure, the suspension wheel and the power wheel are arranged together, which is equivalent to directly driving the upper limiting mechanism in the prior art to move, and the cleaning mechanism is easily moved, and the design is more reasonable; the cleaning mechanism can be moved and cleaned through the moving device, and it is not necessary to arrange the lower limiting mechanism and the lower limiting telescopic rod, so that the structure is simpler, the action is more convenient, and the cost is lower. The electric brush roller arranged on the roller frame is not less than two, and the snow removal efficiency can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the embodiment one of the utility model.

[0019] Figure 2 It is a structure schematic view of the second driving part of the embodiment one of the utility model.

[0020] Figure 3 It is a structure schematic view of the cleaning mechanism of the embodiment one of the utility model.

[0021] Figure 4 It is a whole structure schematic view of the embodiment two of the utility model.

[0022] Figure 5 It is a whole structure schematic view of the embodiment three of the utility model.

[0023] Figure 6 It is a structure schematic view of the telescopic mechanism after extension in the embodiment three of the utility model.

[0024] Figure 7 It is a whole structure schematic view of the embodiment four of the utility model.

[0025] Figure 8 It is a structure schematic view of the telescopic mechanism in the embodiment four of the utility model.

[0026] In the diagram: 1. Mobile device; 2. Cleaning device; 3. Main unit; 4. Suspension wheel; 5. Drive wheel; 6. Caster wheel; 7. Ultrasonic ranging sensor; 8. Telescopic mechanism; 9. Cleaning mechanism; 10. Roller frame; 11. Sweeping roller; 12. Drive component one; 13. Scissor lift telescopic frame; 14. Drive component two; 15. Clearance; 16. Slider; 17. Control box; 18. Drive component four; 19. Lead screw; 20. Dual-channel controller; 21. Electric push rod; 22. Fixed fork; 23. Intermediate fork; 24. Front fork; 25. Drive gear; 26. Rack; 27. Drive component three; 28. Transmission gear; 29. ​​Intermediate frame; 30. Folding rod; 31. Quick-release buckle; 32. Drive motor. Detailed Implementation

[0027] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] Example 1

[0029] like Figures 1-3 As shown, this solution discloses a photovoltaic panel cleaning robot, including a mobile device 1 and a cleaning device 2. The mobile device 1 includes a main unit housing 3, suspension wheels 4, and drive wheels 5. The suspension wheels 4 are fixed to the top of the main unit housing 3, with two wheels on each side of the main unit housing 3, and roll in cooperation with the top edge of the photovoltaic panel. Two drive wheels 5 are installed on each side of the main unit housing 3, and roll in cooperation with the surface of the photovoltaic panel. The main unit housing 3 is equipped with a drive structure for driving the drive wheels 5 to rotate. The drive structure for driving the drive wheels 5 to rotate can be a geared motor, a servo motor, etc.

[0030] The cleaning device 2 includes a telescopic mechanism 8 and a cleaning mechanism 9. The telescopic mechanism 8 is installed on the main unit 3, and the cleaning mechanism 9 is connected to the telescopic mechanism 8. The telescopic mechanism 8 is used to drive the cleaning mechanism 9 to move longitudinally along the surface of the photovoltaic panel.

[0031] The cleaning mechanism 9 includes a roller frame 10 and an electric brush roller mounted on the roller frame 10. The electric brush roller includes a cleaning roller 11 and a drive component 12. The cleaning roller 11 is rotatably mounted on the roller frame 10. The cleaning rollers 11 are arranged side by side on the roller frame 10 along the length direction of the roller frame 10 (i.e., the longitudinal direction of the photovoltaic panel surface). Multiple cleaning rollers can be arranged. Figure 3For example, three driving components 12 are arranged on the roller frame 10 corresponding to the cleaning rollers 11 respectively, and are used to drive the corresponding cleaning rollers 11 to rotate. The driving components 12 can be selected from a speed reducer motor, a servo motor, etc. The driving components 12 and the cleaning rollers 11 can be integrated (which is a common technology known to those skilled in the art and will not be described in detail), or can be arranged separately. In the present scheme, the driving components 12 and the cleaning rollers 11 of the electric brush roller at the top are integrated, which is convenient for passing through the gap 15 mentioned later. The driving components 12 and the cleaning rollers 11 of the electric brush roller in the middle and at the bottom can be designed in a split type or integrated.

[0032] The telescopic mechanism 8 includes a scissor telescopic frame 13 and a driving component 14. The scissor telescopic frame 13 has two ends, i.e., a first end and a second end. The first end of the scissor telescopic frame 13 is connected with the main box 3, and the second end of the scissor telescopic frame 13 is connected with the roller frame 10. The driving component 14 is used to drive the scissor telescopic frame 13 to telescope.

[0033] Each end of the scissor telescopic frame 13 has two connection ends, i.e., a fixed end and a movable end. The length of the scissor telescopic frame 13 can be changed by changing the distance between the fixed end and the movable end. The fixed end of the first end of the scissor telescopic frame 13 is fixedly connected with the main box 3, and the movable end is slidably connected with the main box 3. The driving component 14 is installed in the main box 3 and is used to drive the movable end of the first end of the scissor telescopic frame 13 to slide relative to the fixed end. The fixed end of the second end of the scissor telescopic frame 13 is fixedly connected with the roller frame 10, and the movable end is slidably connected with the roller frame 10. The driving component 14 can be selected from an electric telescopic rod in the prior art, or a driving motor 32, a lead screw 19 and a sliding block 16, etc. Figure 2 For example, the sliding block 16 is threadedly connected with the lead screw 19, and the sliding end of the first end of the scissor telescopic frame 13 is fixedly connected with the sliding block 16. The driving motor 32 is used to drive the lead screw 19 to rotate, thereby driving the sliding block 16 to slide. The sliding block 16 drives the sliding end of the first end of the scissor telescopic frame 13 to move, thereby realizing the telescopic control of the scissor telescopic frame 13.

[0034] When the power wheels 5 on both sides are in contact with the photovoltaic panel, the main box 3 has a gap 15 between the main box 3 and the photovoltaic panel. The gap 15 can enable the cleaning roller 11 close to the main box 3 to pass through, thereby enabling the cleaning roller 11 to clean the edge at the top end of the photovoltaic panel.

[0035] The roller frame 10 is provided with universal wheels 6, which are in rolling cooperation with the photovoltaic panel and are used to support the roller frame 10, so that the cleaning roller 11 has a proper cleaning distance from the photovoltaic panel, thereby improving the cleaning quality.

[0036] The main box 3 is provided with a double-path controller 20, which is used to control the driving structure for driving the power wheels 5 to rotate.

[0037] The photovoltaic panel cleaning robot also includes ultrasonic ranging sensors 7. Two ultrasonic ranging sensors 7 are installed on both sides of the main unit 3. The ultrasonic ranging sensors 7 are used to detect the surrounding environment to prevent the robot from falling due to missing photovoltaic panels or reaching the edge.

[0038] A control box 17 is provided on the roller frame 10. The control box 17 is electrically connected to the drive component 12. The control box 17 contains a drive module for the electric brush roller and a power supply module, etc. The drive component 12 is controlled to work through the control box 17. Multiple drive components 12 can be connected to the control box 17, and multiple drive components 12 can be controlled to work simultaneously.

[0039] Instructions for use:

[0040] When the photovoltaic panel cleaning robot moves and cleans the photovoltaic panel, it is suspended from the top edge of the photovoltaic panel by the suspension wheel 4 and powered by the drive wheel 5 to move left and right on the photovoltaic panel. The drive component 12 drives the cleaning roller 11 to rotate and clean. The control box 17 on the roller frame 10 has a built-in control module to control the electric brush roller to clean the photovoltaic panel. The drive component 14 drives the scissor lift frame 13 to extend and retract, so that the cleaning roller 11 moves longitudinally along the surface of the photovoltaic panel. After the scissor lift frame 13 completes a set of longitudinal extension and retraction actions, the drive wheel drives the uppermost suspension wheel to roll and move laterally. Then the scissor lift frame 13 continues to extend and retract, so that the cleaning roller 11 moves longitudinally along the surface of the photovoltaic panel to clean. As described above, the photovoltaic panel cleaning robot moves forward on the photovoltaic panel, thereby completing the cleaning of the entire panel surface.

[0041] Example 2

[0042] like Figure 4 As shown, the difference between this embodiment and embodiment one is that in this embodiment, the telescopic mechanism 8 is an electric push rod 21. The figure shows a three-section type as an example, but it can also be of other numbers of sections. One end of the electric push rod 21 is fixedly connected to the main unit 3, and the other end is fixedly connected to the roller frame 10. By controlling the extension and retraction of the electric push rod 21, the cleaning mechanism 9 can be moved longitudinally along the photovoltaic panel surface (that is, in the direction of the photovoltaic panel width). The number of sections of the electric push rod 21 can be selected according to the longitudinal dimensions of the photovoltaic panel.

[0043] Example 3

[0044] like Figure 5 , 6As shown, this embodiment differs from Embodiment 1 in that, in this embodiment, the telescopic mechanism 8 includes a drive component 27, a transmission gear 28, an intermediate frame 29, and a folding rod 30. The folding rod 30 is composed of two pivotally connected rods. The main housing 3 is pivotally connected to the intermediate frame 29 via the folding rod 30. The intermediate frame 29 is pivotally connected to the roller frame 10 via the folding rod 30. One end of the folding rod 30 is provided with a transmission gear 28, and the transmission gears 28 at the ends of the two folding rods 30 pivotally connected to the intermediate frame 29 mesh with each other. The main housing 3 and the intermediate frame 29 can be connected via the two folding rods 30, and the intermediate frame 29 can be connected to the roller frame 10 via the two folding rods 30. The drive component 27 is movably connected to the main housing 3, and its telescopic end is movably connected to the folding rod 30 between the main housing 3 and the intermediate frame 29. The drive component 27 is used to drive the folding rod 30 to fold, and a hydraulic rod or the like can be used.

[0045] Example 4

[0046] like Figure 7 , 8 As shown, this embodiment differs from Embodiment 1 in that, in this embodiment, the telescopic mechanism 8 includes a fixed fork 22, an intermediate fork 23, a front fork 24, and a drive assembly. The drive assembly includes a drive gear 25, a rack 26, and a quick-release buckle 31. The drive assembly may also use other structures that can slide the intermediate fork 23 off the fixed fork 22 and the front fork 24 off the intermediate fork 23.

[0047] The fixed fork 22 is fixedly connected to the main unit housing 3. The intermediate fork 23 is damped and slidably connected to the fixed fork 22. The front fork 24 is slidably connected to the intermediate fork 23. A quick-release buckle 31 is located at the front end of the intermediate fork 23, allowing the front end of the intermediate fork 23 and the rear end of the front fork 24 to be quickly engaged together to form a fixed connection. The drive gear 25 is rotatably mounted on the main unit housing 3 and is driven to rotate by a drive component 4 18 located inside the main unit housing 3. The drive component 4 18 can be a motor, etc. A rack 26 is respectively installed on the intermediate fork 23 and the front fork 24, and the drive gear 25 meshes with the rack 26. Initially, the front fork 25... When the fork 24 retracts to the intermediate fork 23, and the intermediate fork 23 retracts to the fixed fork 22, when it extends, the drive gear 25 first engages with the rack 26 on the fork 24, thereby driving the fork 24 to extend from the intermediate fork 23. When the fork 24 moves to the front end, the rear end of the fork 24 engages with the front end of the intermediate fork 23 through the quick-release buckle 31 (quickly disengaging when retracted). The fork 24 drives the intermediate fork 23 forward until the rack 26 on the intermediate fork 23 engages with the drive gear 25, which drives the intermediate fork 23 to move forward. The intermediate fork 23 can then drive the fork 24 to continue extending forward. The reverse operation will retract the fork.

[0048] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the technical solutions of the present application, and are not intended to limit the specific implementation manners of the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application claims shall be included in the protection scope of the present application claims.

Claims

1. A photovoltaic panel cleaning robot, characterized in that: The utility model relates to a photovoltaic panel cleaning device, including mobile device (1) and cleaning device (2); The mobile device (1) includes a main box (3), a suspension wheel (4) and a power wheel (5), the suspension wheel (4) is fixed on the top of the main box (3) and is in rolling cooperation with the top edge of the photovoltaic panel, the power wheel (5) is in rolling cooperation with the surface of the photovoltaic panel, and the main box (3) is provided with a driving structure for driving the power wheel (5) to rotate; The cleaning device (2) includes a telescopic mechanism (8) and a cleaning mechanism (9), the telescopic mechanism (8) is installed on the main box (3), and the cleaning mechanism (9) is connected with the telescopic mechanism (8), and the telescopic mechanism (8) is used to drive the cleaning mechanism (9) to move along the longitudinal direction of the surface of the photovoltaic panel.

2. A photovoltaic panel cleaning robot according to claim 1, characterized in that: The telescopic mechanism (8) includes a scissor telescopic frame (13) and a second driving component (14), the scissor telescopic frame (13) has two ends, namely a first end and a second end, the first end of the scissor telescopic frame (13) is connected with the main box (3), the second end of the scissor telescopic frame (13) is connected with the cleaning mechanism (9), and the second driving component (14) is used to drive the scissor telescopic frame (13) to be telescopic.

3. A photovoltaic panel cleaning robot according to claim 2, characterized in that: Each end of the scissor telescopic frame (13) is provided with two connecting ends, namely a fixed end and a movable end, the fixed end of the first end of the scissor telescopic frame (13) is fixedly connected with the main box (3), the movable end of the first end of the scissor telescopic frame (13) is slidably connected with the main box (3), the second driving component (14) is installed in the main box (3) and is used to drive the movable end of the first end of the scissor telescopic frame (13) to slide relative to the fixed end, the fixed end of the second end of the scissor telescopic frame (13) is fixedly connected with the cleaning mechanism (9), and the movable end of the second end of the scissor telescopic frame (13) is slidably connected with the cleaning mechanism (9).

4. A photovoltaic panel cleaning robot according to claim 3, characterized in that: The second driving component (14) includes a driving motor (32), a lead screw (19) and a sliding block (16), the lead screw (19) is rotatably installed in the main box (3), the driving motor (32) is installed in the main box (3) and is used to drive the lead screw (19) to rotate, the sliding block (16) is slidably connected in the main box (3), the sliding block (16) is threadedly connected with the lead screw (19) through the threaded hole arranged thereon, and the sliding end of the first end of the scissor telescopic frame (13) is fixedly connected with the sliding block (16).

5. A photovoltaic panel cleaning robot according to claim 1, characterized in that: The telescopic mechanism (8) is an electric push rod (21), one end of the electric push rod (21) is fixedly connected with the main box (3), and the other end is fixedly connected with the cleaning mechanism (9).

6. A photovoltaic panel cleaning robot according to claim 1, characterized in that: The telescopic mechanism (8) comprises driving component three (27), transmission gear (28), intermediate frame (29) and folding rod (30); the main box (3) is pivoted with the intermediate frame (29) through the folding rod (30), the intermediate frame (29) is pivoted with the cleaning mechanism (9) through the folding rod (30), one end of the folding rod (30) is provided with the transmission gear (28), the transmission gears (28) at the ends of the two folding rods (30) pivoted on the intermediate frame (29) are engaged; the driving component three (27) is movably connected on the main box (3), and the telescopic end is movably connected on the folding rod (30) between the main box (3) and the intermediate frame (29).

7. A photovoltaic panel cleaning robot according to claim 1, characterized in that: The telescopic mechanism (8) comprises fixed fork (22), intermediate fork (23), front fork (24) and driving assembly; the fixed fork (22) is fixedly connected on the main box (3), the intermediate fork (23) is slidably connected on the fixed fork (22), the front fork (24) is slidably connected on the intermediate fork (23), the intermediate fork (23) can be slid out of the fixed fork (22) through the driving assembly, and the front fork (24) can also be slid out of the intermediate fork (23).

8. A photovoltaic panel cleaning robot according to claim 1, characterized in that: The cleaning mechanism (9) comprises roller frame (10) and electric brush roller; the electric brush roller is arranged in parallel on the roller frame (10) and is not less than two.

9. A photovoltaic panel cleaning robot according to claim 8, characterized in that: The universal wheel (6) is installed on the roller frame (10), the universal wheel (6) is arranged in one-to-one correspondence with the sweeping roller (11), and the universal wheel (6) is in rolling cooperation with the photovoltaic panel.

10. A photovoltaic panel cleaning robot according to claim 8, characterized in that: The power wheel (5) is provided with two on the two sides of the main box (3), when the power wheels (5) on the two sides are in contact with the photovoltaic panel surface, the main box (3) has a gap (15) with the photovoltaic panel, and the height size of the gap (15) is greater than the diameter of the sweeping roller (11).

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