A photovoltaic cleaning robot

Abstract

The utility model discloses a photovoltaic cleaning robot belongs to photovoltaic cleaning technical field, including robot main part, the front surface and rear surface of robot main part are all opposite side and are provided with drive wheel, and the outer lateral wall of two drive wheel located one side all commonly is provided with track, the left side and right side of robot main part all are set up with the storage groove, and the inside front surface of two storage grooves all are rotatably connected with the movable rod through the pivot, and the outer lateral wall of two movable rods all is fixedly connected with the rotary plate, the utility model discloses through setting up the storage groove in the left side and right side of robot main part, and cooperate the rotary structure of movable rod, rotary plate, realized the storage function of cleaning roller brush under the non - working state, when the equipment is idle, motor no.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic cleaning technology, and in particular to a photovoltaic cleaning robot. Background Technology

[0002] During the daily operation of photovoltaic power plants, dust, sand, bird droppings, fallen leaves and other pollutants easily adhere to the surface of photovoltaic modules. These pollutants significantly reduce the absorption efficiency of photovoltaic modules to sunlight, which in turn leads to a significant decrease in the power generation of photovoltaic power plants. To replace the problems of low efficiency, high labor intensity, high risk of high-altitude operation and waste of water resources in traditional manual cleaning methods, photovoltaic cleaning robots have emerged.

[0003] However, when existing photovoltaic cleaning robots are not in operation, their cleaning mechanisms are completely exposed without effective storage or protection structures. This makes them susceptible to structural deformation during transportation, storage, or parking due to external impacts, such as bent brush supports or broken spray nozzles. This not only affects the cleaning effect but may also cause parts to fall off when the robot is working. If these parts get stuck between photovoltaic modules or in the robot's walking mechanism, it can cause the robot to stop or even damage the photovoltaic modules. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide a solution to the problem that when existing photovoltaic cleaning robots are not in operation, their cleaning mechanisms are completely exposed to the outside, making them susceptible to structural deformation due to external impacts. This not only affects the cleaning effect but may also cause parts to fall off when the robot is in operation.

[0005] Technical solution: A photovoltaic cleaning robot includes a robot body. Drive wheels are provided on opposite sides of the front and rear surfaces of the robot body. Tracks are provided on the outer side walls of the two drive wheels located on one side. Storage slots are provided on the left and right sides of the robot body. Movable rods are rotatably connected to the inner front surfaces of the two storage slots through a rotating shaft. Rotating plates are fixedly connected to the outer side walls of the two movable rods.

[0006] The outer sides of both rotating plates are provided with mounting grooves, the inner sides of both mounting grooves are provided with connecting plates, the outer sides of both connecting plates are provided with grooves, and the interiors of both grooves are provided with cleaning roller brushes.

[0007] Furthermore, a robotic arm body is provided on the right side of the upper surface of the robot body, and a vision acquisition unit is fixedly connected to the end of the robotic arm body.

[0008] Furthermore, multiple guide wheels are provided on the inner side of each of the two tracks, and the outer sidewalls of the multiple guide wheels respectively contact the inner sidewalls of the two tracks.

[0009] Furthermore, slots are provided on the inner sides of both mounting slots, and plug-in plates are slidably connected inside both slots. Through-holes are provided on the upper and lower inner surfaces of both slots. Multiple threaded holes are provided on the upper and lower surfaces of both plug-in plates. Multiple fixing bolts are provided on the upper and lower surfaces of both rotating plates. The threaded ends of the multiple fixing bolts pass through the multiple holes and are respectively connected to the internal threads of the multiple threaded holes.

[0010] Furthermore, both of the inner front and inner rear surfaces of the two connecting plates are provided with mating grooves, and both of the inner front and inner rear surfaces of the two mounting grooves are fixedly connected with protruding strips. The outer sidewalls of the multiple protruding strips are slidably connected to the inner sidewalls of the multiple mating grooves respectively.

[0011] Furthermore, a fixing plate is fixedly connected to the inner front and inner rear surfaces of the two grooves. Hollow tubes are provided on opposite sides of the two adjacent fixing plates. The outer walls of the two hollow tubes are fixedly connected to the interiors of the two cleaning roller brushes. Motor 1 is fixedly connected to the rear surface of the two fixing plates located at the rear. The front ends of the output shafts of the two motors are fixedly connected to the rear ends of the two hollow tubes. A water tank is fixedly connected to the upper surface of the robot body. A water supply hose is provided on the upper surface of the water tank. A connecting pipe is provided on the front surface of the water tank. Both ends of the connecting pipe are connected to conveying hoses. The two conveying hoses are connected to the interiors of the two hollow tubes. A through-hole is opened on the inner side wall of the two hollow tubes. A water pump is provided on the outer side wall of the connecting pipe.

[0012] Furthermore, a pulley 1 is rotatably connected to the opposite side of the rear surface of the robot body via a rotating shaft. The rear ends of both movable rods extend to the rear of the robot body and are fixedly connected to pulley 2. The outer side walls of the two pulley 1s and the outer side walls of the two pulley 2s are respectively connected to a transmission belt. The rear surfaces of the two pulley 1s are fixedly connected to transmission gear blocks, and the outer side walls of the two transmission gear blocks are meshed together. A motor 2 is located behind the transmission gear block on the left side. The front end of the output shaft of the motor 2 is fixedly connected to the rear surface of the transmission gear block on the left side, and the rear surface of the motor 2 is fixedly connected to the rear surface of the robot body.

[0013] Furthermore, an arc-shaped fitting groove is provided on the upper part of the opposite sides of the interior of both of the storage slots.

[0014] Furthermore, the outer wall of the connecting pipe is provided with multiple pipe clamps, and the rear surfaces of the multiple pipe clamps are fixedly connected to the front surface of the robot body.

[0015] Beneficial effects: This utility model achieves the storage function of cleaning roller brush in non-working state by opening storage slots on the left and right sides of the robot body and cooperating with the rotating structure of movable rod and rotating plate. When the equipment is idle, motor 2 can drive the transmission gear block, pulley and transmission belt to rotate the movable rod and rotating plate, and retract the cleaning roller brush into the storage slot, avoiding the cleaning roller brush being directly exposed. This solves the problem of the cleaning mechanism being easily deformed by external force collision and the parts falling off in the existing equipment, reduces the wear and damage of the cleaning mechanism, extends the service life of the cleaning roller brush, and avoids robot downtime or photovoltaic module damage caused by parts falling off, ensuring the long-term stable operation of the equipment.

[0016] This utility model device uses a motor to drive a hollow tube to actively rotate the cleaning roller brush, which, together with the track and drive wheel, moves the robot body. This dual cleaning mode can more efficiently remove dust and stains from the surface of photovoltaic modules. At the same time, the combination of the water tank, water pump, hollow tube and connecting hole can evenly deliver water to the cleaning roller brush, keeping the roller brush moist and enhancing the cleaning ability to remove stubborn stains, further improving the cleaning quality.

[0017] When the cleaning roller brush needs maintenance or replacement, simply unscrew the fixing bolts and slide along the convex strip to remove the connecting plate and the cleaning roller brush. No complicated tools or disassembly of a large number of parts are required. After maintenance, the convex strip and the docking groove guide the positioning, and then the fixing bolts are used to lock it in place for quick reinstallation. This greatly simplifies the maintenance process of the cleaning roller brush, shortens the maintenance time, reduces the operation difficulty for maintenance personnel, and reduces the risk of component damage caused by complex maintenance, thereby indirectly reducing the operation and maintenance costs of the equipment.

[0018] The robotic arm body of this utility model can be flexibly adjusted in angle, driving the vision acquisition unit to cover the entire area of ​​the photovoltaic panel, eliminating blind spots in detection, and avoiding missing stains or defects. The vision acquisition unit can acquire clear images at close range, improving the accuracy of identifying cracks and stains on the photovoltaic panel, ensuring the condition judgment before cleaning. There is no need to frequently adjust the robot body, and the robotic arm can adapt to different photovoltaic panels and power station environments, enhancing its applicability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall rear view structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure of the rotating plate, connecting plate and cleaning roller brush of this utility model;

[0022] Figure 4 This is a side view of the rotating plate of this utility model.

[0023] Figure 5 This is a bottom view of the connecting plate, plug-in plate, and hollow tube of this utility model;

[0024] Figure 6 This is a utility model Figure 2 A magnified structural diagram of point A in the middle.

[0025] In the diagram: 1. Robot body; 2. Drive wheel; 3. Track; 4. Storage slot; 5. Movable rod; 6. Rotating plate; 7. Mounting slot; 8. Connecting plate; 9. Groove; 10. Cleaning roller brush; 11. Robotic arm body; 12. Guide wheel; 13. Slot; 14. Plug plate; 15. Round hole; 16. Threaded hole; 17. Fixing bolt; 18. Docking groove; 19. Raised strip; 20. Fixing plate; 21. Hollow tube; 22. Motor 1; 23. Water tank; 24. Water supply hose; 25. Connecting pipe; 26. Delivery hose; 27. Connecting hole; 28. Water pump; 29. ​​Pulley 1; 30. Pulley 2; 31. Transmission belt; 32. Transmission gear block; 33. Motor 2; 34. Arc-shaped adapter groove; 35. Pipe clamp; 36. Vision acquisition unit. Detailed Implementation

[0026] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example

[0028] like Figures 1-6 As shown, a photovoltaic cleaning robot is provided, including a robot body 1. Drive wheels 2 are provided on opposite sides of the front and rear surfaces of the robot body 1. Tracks 3 are provided on the outer side walls of the two drive wheels 2 located on one side. Storage slots 4 are provided on the left and right sides of the robot body 1. Movable rods 5 are rotatably connected to the inner front surfaces of the two storage slots 4 via rotating shafts. Rotating plates 6 are fixedly connected to the outer side walls of the two movable rods 5. Mounting slots 7 are provided on the outer side of the two rotating plates 6. Connecting plates 8 are provided on the inner side of the two mounting slots 7. Grooves 9 are provided on the outer side of the two connecting plates 8. Cleaning roller brushes 10 are provided inside the two grooves 9.

[0029] When the photovoltaic cleaning robot is working, it first controls the rotation of two movable rods 5. The movable rods 5 drive the outer fixed rotating plate 6 to rotate out of the storage slot 4. The connecting plate 8 in the mounting slot 7 on the outer side of the rotating plate 6 moves accordingly, so that the cleaning roller brush 10 set in the groove 9 of the connecting plate 8 contacts the surface of the photovoltaic module. Then, the multiple drive wheels 2 on the outer side of the robot body 1 start, driving the track 3 set on the outer side to rotate. The track 3 drives the robot body 1 to move on the surface of the photovoltaic module. At the same time, the cleaning roller brush 10 rotates synchronously to clean the surface of the photovoltaic module. When the cleaning operation is completed or the equipment is not in use, the robot continues to clean the surface of the photovoltaic module. When in use, the movable rod 5 rotates in the opposite direction via the rotating shaft, causing the rotating plate 6, connecting plate 8, and cleaning roller brush 10 to retract into the storage slot 4, thus storing the cleaning roller brush 10. This allows the robot to move stably on the surface of the photovoltaic module through the track 3 and drive wheel 2, ensuring the cleaning coverage area. The storage function of the storage slot 4 in storing the cleaning roller brush 10 can prevent the cleaning roller brush 10 from being exposed to the outside and damaged by wind, sand, rain, collisions, etc. when the equipment is idle, thus extending the service life of the cleaning roller brush 10. At the same time, it ensures that the overall structure of the robot is compact and reduces the space occupied when idle.

[0030] like Figure 1 and Figure 2 As shown, a robotic arm body 11 is provided on the right side of the upper surface of the robot body 1, and a vision acquisition unit 36 ​​is fixedly connected to the end of the robotic arm body 11.

[0031] The robotic arm body 11 is rotatably mounted on a base and consists of multiple articulated joints. During operation, the overall horizontal orientation can be adjusted by rotating the base first, and then the coordinated movement of each articulated joint can be flexibly adjusted at multiple angles in the horizontal and vertical directions, driving the fixed end vision acquisition unit 36 ​​to move. The vision acquisition unit 36 ​​is equipped with an industrial camera. During the adjustment of the robotic arm body 11, it will gradually move to different detection positions on the photovoltaic panel surface as the robotic arm rotates horizontally, rises and falls vertically, and bends at multiple angles of the articulated joints. It can cover the edge area of ​​the photovoltaic panel and also reach corners that are difficult to reach with conventional fixed acquisition, realizing all-round, spotless image acquisition of the photovoltaic panel surface. During the acquisition process, if the image clarity of a local area is insufficient or a suspected defect area is found, the robotic arm body 11 can be finely adjusted again to drive the vision acquisition unit 36 ​​closer to the target area for secondary precise acquisition. Through such flexible adjustment, the visual detection range is effectively expanded, and the accuracy and comprehensiveness of defect identification are significantly improved.

[0032] like Figure 1 and Figure 2 As shown, multiple guide wheels 12 are provided on the inner side of each of the two tracks 3, and the outer sidewalls of the multiple guide wheels 12 are in contact with the inner sidewalls of the two tracks 3 respectively.

[0033] The multiple guide wheels 12 can further assist in guiding the movement trajectory of the track 3, reducing the lateral deviation of the track 3 due to uneven force during movement. At the same time, the multiple guide wheels 12 can disperse the pressure on the inner side of the track 3, avoid excessive local compression and deformation of the track 3, ensure that the track 3 and the drive wheel 2 are always stably engaged, and ensure that the robot body 1 moves more smoothly when it moves through the track 3. Even if there are slight unevenness on the surface of the photovoltaic module, it can reduce the risk of the track 3 getting stuck or derailing, and improve the overall reliability of the robot's movement.

[0034] like Figures 3-5 As shown, slots 13 are provided on the inner sides of both mounting slots 7, and plug-in plates 14 are slidably connected inside both slots 13. Through-hole round holes 15 are provided on the upper and lower inner surfaces of both slots 13. Multiple threaded holes 16 are provided on the upper and lower surfaces of both plug-in plates 14. Multiple fixing bolts 17 are provided on the upper and lower surfaces of both rotating plates 6. The threaded ends of the multiple fixing bolts 17 pass through the multiple round holes 15 and are threadedly connected to the inside of the multiple threaded holes 16. The front and rear inner surfaces of both connecting plates 8 are provided with mating grooves 18. Protrusions 19 are fixedly connected to the front and rear inner surfaces of both mounting slots 7. The outer walls of the multiple protrusions 19 are slidably connected to the inner walls of the multiple mating grooves 18.

[0035] When assembling the connecting plate 8, first align the mating grooves 18 on both sides of the connecting plate 8 with the protrusions 19 in the mounting groove 7, and slide the connecting plate 8 along the protrusions 19 so that the plug-in plate 14 on the outside of the connecting plate 8 slides into the slot 13 on the inside of the mounting groove 7. After the connecting plate 8 is installed in place, pass the threaded ends of the multiple fixing bolts 17 through the multiple round holes 15 in the slot 13 and screw them into the threaded holes 16 at the corresponding positions of the plug-in plate 14 to complete the fixing of the connecting plate 8 and the rotating plate 6. At this time, the cleaning roller brush 10 in the groove 9 of the connecting plate 8 can carry out cleaning normally with the robot. When the cleaning roller brush 10 needs maintenance, simply unscrew the fixing bolt 17 and slide the connecting plate 8 in the opposite direction along the protrusion 19 to disengage the plug plate 14 from the slot 13 and the docking groove 18 from the protrusion 19. This allows for quick removal of the connecting plate 8 from the cleaning roller brush 10. Through the cooperation of the slot 13 and the plug plate 14 and the quick locking of the fixing bolt 17, the connecting plate 8 can be quickly disassembled and assembled without the need for complicated tools or cumbersome steps. This significantly shortens the maintenance time of the cleaning roller brush 10, reduces the maintenance difficulty, and ensures the continuity of the robot's cleaning operations.

[0036] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, a fixing plate 20 is fixedly connected to the inner front surface and inner rear surface of the two grooves 9. Hollow tubes 21 are provided on the opposite sides of the two adjacent fixing plates 20. The outer walls of the two hollow tubes 21 are fixedly connected to the interior of the two cleaning roller brushes 10. Motors 22 are fixedly connected to the rear surfaces of the two fixing plates 20 located at the rear. The front ends of the output shafts of the two motors 22 are fixedly connected to the rear ends of the two hollow tubes 21. A water tank 23 is fixedly connected to the upper surface of the robot body 1. A water supply hose 24 is provided on the upper surface of the water tank 23. A connecting pipe 25 is provided on the front surface of the water tank 23. Both ends of the connecting pipe 25 are connected to conveying hoses 26. The two conveying hoses 26 are connected to the interior of the two hollow tubes 21. A through-hole 27 is opened on the inner side wall of the two hollow tubes 21. A water pump 28 is provided on the outer side wall of the connecting pipe 25.

[0037] When the photovoltaic cleaning robot starts cleaning, the water pump 28 starts first, delivering water from the water tank 23 to the delivery hoses 26 at both ends through the connecting pipe 25. The delivery hoses 26 then guide the water into the hollow tube 21 inside the cleaning roller brush 10. The water seeps out through the connecting hole 27 on the inner wall of the hollow tube 21, evenly wetting the cleaning roller brush 10 fitted on the outside of the hollow tube 21. At the same time, the two motors 22 start synchronously, and their output shafts drive the hollow tube 21 to rotate. The hollow tube 21 then drives the cleaning roller brush 10 fixed on the outside to rotate synchronously. The rotating wet cleaning roller brush 10 contacts the surface of the photovoltaic module. With the robot moving through the track 3, the photovoltaic module is cleaned. The water pump 28 and the hollow tube 21 can continuously supply water to the cleaning roller brush 10, keeping the roller brush moist and improving the cleaning effect on stubborn stains. The motors 22 drive the cleaning roller brush 10 to rotate actively. Compared with passive cleaning that relies solely on the movement of the robot, the cleaning efficiency is higher, and the continuity and quality of the cleaning operation are improved.

[0038] like Figure 2 , Figure 3 and Figure 6 As shown, a pulley 29 is rotatably connected to the opposite side of the rear surface of the robot body 1 via a rotating shaft. The rear ends of the two movable rods 5 extend to the rear of the robot body 1 and are fixedly connected to pulleys 30. The outer walls of the two pulleys 29 and the outer walls of the two pulleys 30 are connected to a transmission belt 31. The rear surfaces of the two pulleys 29 are fixedly connected to transmission gear blocks 32. The outer walls of the two transmission gear blocks 32 are meshed. A motor 33 is located behind the transmission gear block 32 on the left side. The front end of the output shaft of the motor 33 is fixedly connected to the rear surface of the left transmission gear block 32. The rear surface of the motor 33 is fixedly connected to the rear surface of the robot body 1.

[0039] When the cleaning roller brush 10 needs to extend, the motor 2 33 fixed to the rear surface of the robot body 1 starts, and its output shaft drives the left transmission gear block 32 to rotate. Because the two transmission gear blocks 32 mesh with each other, the left transmission gear block 32 will synchronously drive the right transmission gear block 32 to rotate in the opposite direction. The two transmission gear blocks 32 are respectively fixedly connected to the pulley 1 29 on the opposite side of the rear surface of the robot body 1. Therefore, the two pulleys 1 29 will rotate in the same direction as the transmission gear blocks 32, and drive the corresponding pulley 2 30 to rotate through the outer transmission belt 31. The pulley 2 30 is fixed to the rear end of the movable rod 5. The front end of the movable rod 5 is rotatably connected to the front surface inside the storage slot 4 via a rotating shaft. Therefore, the movable rod 5 will rotate with the pulley 30, driving the outer rotating plate 6, connecting plate 8 and cleaning roller brush 10 to rotate out of the storage slot 4, completing the extension action of the cleaning roller brush 10. When the cleaning roller brush 10 needs to be retracted, the output shaft of the motor 33 rotates in the opposite direction, which can retract the cleaning roller brush 10 into the storage slot 4. Thus, the forward and reverse rotation of the motor 33 can realize the synchronous extension or retraction of the two cleaning roller brushes 10 without manual operation, ensuring the reliability of the storage and cleaning action of the cleaning roller brush 10.

[0040] like Figure 1 and Figure 2 As shown, arc-shaped fitting grooves 34 are provided on the upper part of the opposite sides of the interior of the two storage slots 4;

[0041] With the arc-shaped adapter groove 34, the curvature of the groove matches the outer contour of the cleaning roller brush 10. When the cleaning roller brush 10 is retracted into the storage groove 4 along with the rotating plate 6 and the movable rod 5, the upper part of the cleaning roller brush 10 will be precisely embedded in the arc-shaped adapter groove 34. The arc-shaped adapter groove 34 limits the position of the cleaning roller brush 10, preventing the cleaning roller brush 10 from shifting or shaking due to robot movement or slight external vibrations when it is stored. At the same time, it makes the cleaning roller brush 10 fit more tightly with the inner wall of the storage groove 4, reducing the space occupied during storage, further ensuring the stability of the cleaning roller brush 10 when idle, and reducing the risk of damage caused by collision or displacement.

[0042] like Figure 1 As shown, the outer wall of the connecting pipe 25 is provided with multiple pipe clamps 35, and the rear surfaces of the multiple pipe clamps 35 are all fixedly connected to the front surface of the robot body 1.

[0043] The multiple clamps 35 can stably hold the connecting pipe 25 on the outside of the robot body 1, preventing the connecting pipe 25 from shifting or shaking due to vibration and bumps during robot movement. At the same time, the fixing function of the clamps 35 can prevent the connection between the connecting pipe 25 and the conveying hoses 26 and water tank 23 at both ends from becoming loose, ensuring the sealing of the water supply channel, preventing water leakage from affecting cleaning operations, and further improving the overall stability and service life of the device.

[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A photovoltaic cleaning robot, comprising a robot body (1), characterized in that: The robot body (1) has drive wheels (2) on opposite sides on both the front and rear surfaces. The outer walls of the two drive wheels (2) on one side are provided with tracks (3). The robot body (1) has storage slots (4) on both the left and right sides. The inner front surfaces of the two storage slots (4) are rotatably connected to movable rods (5) via rotating shafts. The outer walls of the two movable rods (5) are fixedly connected to rotating plates (6). The outer sides of the two rotating plates (6) are provided with mounting grooves (7), the inner sides of the two mounting grooves (7) are provided with connecting plates (8), the outer sides of the two connecting plates (8) are provided with grooves (9), and the interiors of the two grooves (9) are provided with cleaning roller brushes (10).

2. The photovoltaic cleaning robot according to claim 1, characterized in that: The robot body (1) has a robotic arm body (11) on the right side of its upper surface, and a vision acquisition unit (36) is fixedly connected to the end of the robotic arm body (11).

3. The photovoltaic cleaning robot according to claim 1, characterized in that: Multiple guide wheels (12) are provided on the inner side of each of the two tracks (3), and the outer sidewalls of the multiple guide wheels (12) respectively contact the inner sidewalls of the two tracks (3).

4. A photovoltaic cleaning robot according to claim 1, characterized in that: Both mounting slots (7) have slots (13) on their inner sides. Both slots (13) have slidably connected plug plates (14) inside. Both upper and lower inner surfaces of the two slots (13) have through-holes (15). Both plug plates (14) have multiple threaded holes (16) on their upper and lower surfaces. Both rotating plates (6) have multiple fixing bolts (17) on their upper and lower surfaces. The threaded ends of the multiple fixing bolts (17) pass through the multiple holes (15) and are respectively connected to the internal threads of the multiple threaded holes (16).

5. A photovoltaic cleaning robot according to claim 1, characterized in that: Both of the inner front and inner rear surfaces of the two connecting plates (8) are provided with docking grooves (18), and both of the inner front and inner rear surfaces of the two mounting grooves (7) are fixedly connected with protrusions (19). The outer sidewalls of the multiple protrusions (19) are slidably connected to the inner sidewalls of the multiple docking grooves (18).

6. A photovoltaic cleaning robot according to claim 1, characterized in that: A fixing plate (20) is fixedly connected to the inner front surface and inner rear surface of each of the two grooves (9). A hollow tube (21) is provided on the opposite side of each of the two adjacent fixing plates (20). The outer walls of the two hollow tubes (21) are fixedly connected to the interior of each of the two cleaning roller brushes (10). A motor (22) is fixedly connected to the rear surface of each of the two fixing plates (20) located at the rear. The front ends of the output shafts of the two motors (22) are fixedly connected to the rear ends of the two hollow tubes (21). The robot A water storage tank (23) is fixedly connected to the upper surface of the main body (1). A water supply hose (24) is provided on the upper surface of the water storage tank (23). A connecting pipe (25) is provided on the front surface of the water storage tank (23). Both ends of the connecting pipe (25) are connected to a delivery hose (26). The two delivery hoses (26) are respectively connected to the interior of the two hollow tubes (21). The inner sidewalls of the two hollow tubes (21) are provided with through-holes (27). A water pump (28) is provided on the outer sidewall of the connecting pipe (25).

7. A photovoltaic cleaning robot according to claim 1, characterized in that: The rear surface of the robot body (1) is rotatably connected to a pulley (29) via a rotating shaft. The rear ends of the two movable rods (5) extend to the rear of the robot body (1) and are fixedly connected to a pulley (30). The outer walls of the two pulleys (29) are connected to the outer walls of the two pulleys (30) via a transmission belt (31). The rear surfaces of the two pulleys (29) are fixedly connected to a transmission tooth block (32). The outer walls of the two transmission tooth blocks (32) are meshed together. A motor (33) is located behind the transmission tooth block (32) on the left side. The front end of the output shaft of the motor (33) is fixedly connected to the rear surface of the transmission tooth block (32) on the left side. The rear surface of the motor (33) is fixedly connected to the rear surface of the robot body (1).

8. A photovoltaic cleaning robot according to claim 1, characterized in that: Both of the two storage slots (4) have arc-shaped fitting slots (34) on the upper side of their opposing sides.

9. A photovoltaic cleaning robot according to claim 6, characterized in that: The outer wall of the connecting pipe (25) is provided with a plurality of pipe clamps (35), and the rear surfaces of the plurality of pipe clamps (35) are fixedly connected to the front surface of the robot body (1).

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