A photovoltaic panel cleaning drone

Abstract

This utility model discloses a drone for cleaning photovoltaic panels; belonging to the technical field of photovoltaic panel cleaning equipment; its key technical features include a body, with a base fixedly connected to the bottom of the body, shock-absorbing legs fixedly connected to both sides of the base, a placement groove opened at the center of the top of the body, a storage tank inserted into the placement groove, and a bracket for fixing the storage tank on the top of the body. This utility model, through a transmission structure consisting of a motor, turntable, drive rod, and swing plate at the bottom of the base, drives the rotating frame and high-pressure nozzles on the diverter pipe to swing back and forth, expanding the cleaning coverage area without requiring overall drone movement, effectively avoiding cleaning omissions due to insufficient movement precision, and balancing cleaning efficiency and comprehensiveness. It is especially suitable for cleaning large areas of stains or stubborn local contaminants on the surface of photovoltaic panels.

Description

Technical Field

[0001] This utility model relates to the technical field of photovoltaic panel cleaning equipment, specifically a drone for cleaning photovoltaic panels. Background Technology

[0002] With the rapid development of the photovoltaic industry, photovoltaic panels are exposed to the outdoor environment for a long time, and their surfaces are prone to accumulating dirt such as dust and bird droppings, which leads to a decrease in photoelectric conversion efficiency. Therefore, the demand for photovoltaic panel cleaning equipment is growing.

[0003] For example, Chinese patent CN219056601U discloses a photovoltaic panel cleaning drone, including a body, a base fixedly installed at the bottom of the body, wings on the sides of the body, a storage box fixedly installed on the top surface of the body, and a fixing plate fixedly installed on the top surface of the body. This utility model adds a drone and fixes a distribution sleeve to the bottom surface of the drone, so that the bottom surface of the distribution sleeve is fixedly connected to vertical pipes, and nozzles are fixedly connected to the bottom surfaces of multiple sets of vertical pipes. A storage box is installed on the top of the drone, and a water pump is installed on top of it. The water pump pumps the cleaning fluid from the storage box to the distribution sleeve. When the drone flies to the top surface of the photovoltaic panel, it sprays cleaning fluid. The high-speed spray of the cleaning fluid, combined with the cleaning fluid mixed in, effectively cleans the top surface of the photovoltaic panel, adapting to different photovoltaic panel installation environments. It has low actual cleaning difficulty and good performance.

[0004] However, in practical applications, the nozzles in existing devices are fixedly connected to the distribution sleeve via vertical pipes, and the spray angle remains constant, making it impossible to achieve oscillating rinsing. When facing large areas of dirt or stubborn local contaminants on the photovoltaic panel surface, it is necessary to adjust the cleaning position by controlling the entire drone to move. This is not only cumbersome to operate, but also prone to omissions due to insufficient movement precision, making it difficult to balance cleaning efficiency and comprehensiveness. Moreover, the side frame of this device is a rigid connection structure without buffering and shock absorption functions. During the drone's descent, if there is a slight bump in the ground or the descent speed is slightly fast, the side frame cannot buffer the impact force. On the one hand, it is easy for the feet to collide rigidly with the ground, causing damage to the feet or side frame itself. On the other hand, the impact force will be transmitted to the body, which may affect the stability of internal components such as the storage tank and water pump, shortening the service life of the equipment. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a drone for cleaning photovoltaic panels. This solution solves the problem mentioned in the background section where the nozzles in existing devices are fixedly connected to the distribution sleeve via vertical pipes, resulting in a fixed spray angle and an inability to perform oscillating rinsing. When dealing with large areas of dirt or stubborn contaminants on the photovoltaic panel surface, the cleaning position must be adjusted by controlling the entire drone, which is not only cumbersome but also prone to missed areas due to insufficient movement precision, making it difficult to balance cleaning efficiency and comprehensiveness. Furthermore, the side frame of this device is a rigid connection structure without cushioning or shock absorption. During drone descent, if there are slight bumps in the ground or the descent speed is slightly fast, the side frame cannot buffer the impact. This can easily lead to rigid collisions between the feet and the ground, causing damage to the feet or side frame itself. Additionally, the impact force can be transmitted to the drone body, potentially affecting the stability of internal components such as the storage tank and water pump, and shortening the equipment's lifespan.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A drone for cleaning photovoltaic panels includes a body with a base fixedly connected to its bottom. Shock-absorbing legs are fixedly connected to both sides of the base. A placement slot is formed at the center of the top of the body, into which a storage tank is inserted. A bracket for fixing the storage tank is also provided on the top of the body. Two fixed plates, spaced apart, are fixedly connected to the bottom of the base near its front edge. A rotating frame is rotatably connected between the two fixed plates. A diverter pipe is fixedly connected to the front of the rotating frame, and several high-pressure nozzles are connected to the front of the diverter pipe. A swing plate is fixedly connected to the rear of the rotating frame, and a long, horizontally oriented movable groove is formed on the swing plate. A motor adapted to the position of the swing plate is fixedly connected to the bottom of the base. A turntable is fixedly connected to the output end of the motor. A drive rod located in the long, horizontally oriented movable groove is fixedly connected to the edge of the turntable near the swing plate. A water supply mechanism is connected between the diverter pipe and the storage tank.

[0008] Preferably, the bracket includes several support rods fixedly connected to the top of the machine body and arranged in a circular array. The top ends of the several support rods are fixedly connected to a support ring coaxial with the placement slot. Since the support ring is coaxial with the placement slot, the storage bucket can be accurately inserted into the support ring, realizing the coaxial positioning of the storage bucket above the placement slot.

[0009] Preferably, the support ring has a slot at the top, the storage tank has an outer edge at the top outer ring, the outer edge of the storage tank is engaged in the slot, the support ring has a plurality of locking bolts arranged in a ring array connected to the outer ring, and the storage tank has a locking groove corresponding to each locking bolt on the outer edge.

[0010] Preferably, the storage tank has a water inlet at the center of the top, and a sealing cap is threaded onto the top of the water inlet. Two symmetrically distributed handles are also fixedly connected to the top of the storage tank.

[0011] Preferably, the shock-absorbing outrigger includes two sliding rods fixedly connected to the side wall of the base and inclined outwards. The lower half of the two sliding rods are slidably connected to a sliding sleeve. A sliding plate is fixedly connected between the bottom ends of the two sliding rods. The sliding plate is slidably disposed inside the sliding sleeve. A plurality of sliding rods are fixedly connected inside the sliding sleeve. The sliding plate is slidably connected to each sliding rod. Two springs are sleeved on the sliding rods located on the upper and lower sides of the sliding plate. The opposite ends of the upper and lower springs are fixedly connected to the sliding plate. The ends of the upper and lower springs that are far apart from each other are fixedly connected to the inner top and inner bottom of the sliding sleeve, respectively. A ground contact foot is fixedly connected to the bottom of the sliding sleeve.

[0012] Preferably, the water supply mechanism includes a water pump fixedly connected to the bottom of the base, the output end of the water pump is connected to a first delivery pipe, the other end of the first delivery pipe is connected to a diversion pipe, the input end of the water pump is connected to a second delivery pipe, a water pumping pipe is provided inside the storage tank, the top end of the water pumping pipe extends out of the top of the storage tank, and the end of the second delivery pipe away from the water pump is detachably connected to the top end of the water pumping pipe.

[0013] Compared with the prior art, this utility model provides a drone for cleaning photovoltaic panels, which has the following beneficial effects:

[0014] 1. This utility model uses a transmission structure consisting of a motor, turntable, drive rod, and swing plate at the bottom of the base to drive the high-pressure nozzles on the rotating frame and the diversion pipe to swing back and forth. This expands the cleaning coverage area without the need to control the overall movement of the drone, effectively avoiding cleaning omissions caused by insufficient movement precision, and balancing cleaning efficiency and comprehensiveness. It is especially suitable for cleaning large areas of stains or localized stubborn pollutants on the surface of photovoltaic panels.

[0015] 2. This utility model designs the support structure on both sides of the base as shock-absorbing outriggers containing sliding rods, sliding sleeves, sliding plates and double springs. When landing, the elastic deformation of the springs buffers the impact force of the ground, which not only avoids structural damage caused by rigid collision between the landing feet and the ground, but also reduces the transmission of impact force to the machine body, protects the stability of core components such as storage tanks and water pumps, and extends the overall service life of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of the base in this utility model;

[0018] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0019] Figure 4 This is a schematic diagram of the structure of the storage tank in this utility model;

[0020] Figure 5 This is a schematic diagram of the shock-absorbing support leg in this utility model.

[0021] The components in the diagram are labeled as follows: 1. Body; 2. Base; 3. Shock-absorbing leg; 301. Sliding rod; 302. Sliding sleeve; 303. Sliding plate; 304. Sliding rod; 305. Spring; 306. Ground contact foot; 4. Placement slot; 5. Storage tank; 6. Bracket; 7. Fixing plate; 8. Rotating frame; 9. Diverter pipe; 10. High-pressure nozzle; 11. Swing plate; 12. Motor; 13. Turntable; 14. Drive rod; 15. Water supply mechanism; 1501. Water pump; 1502. First delivery pipe; 1503. Second delivery pipe; 1504. Pumping pipe; 16. Support rod; 17. Support ring; 18. Slot; 19. Locking bolt; 20. Locking slot; 21. Water inlet; 22. Sealing cover; 23. Handle. Detailed Implementation

[0022] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0023] Example 1

[0024] Please refer to Figures 1 to 5 As shown, a photovoltaic panel cleaning drone includes a body 1. A base 2 is fixedly connected to the bottom of the body 1. Shock-absorbing legs 3 are fixedly connected to both sides of the base 2. A placement groove 4 is formed at the center of the top of the body 1, and a storage tank 5 is inserted into the placement groove 4. A bracket 6 for fixing the storage tank 5 is also provided on the top of the body 1. Two fixed plates 7, spaced apart, are fixedly connected to the bottom of the base 2 near the front edge. A rotating frame 8 is rotatably connected between the two fixed plates 7. A component is fixedly connected to the front of the rotating frame 8. A diversion pipe 9 is connected to a number of high-pressure nozzles 10 at its front side. A swing plate 11 is fixedly connected to the rear side of the rotating frame 8. A long strip-shaped movable groove is opened on the swing plate 11 along the horizontal direction. A motor 12 adapted to the position of the swing plate 11 is also fixedly connected to the bottom of the base 2. A turntable 13 is fixedly connected to the output end of the motor 12. A drive rod 14 located in the long strip-shaped movable groove is fixedly connected to the edge of the turntable 13 near the swing plate 11. A water supply mechanism 15 is connected between the diversion pipe 9 and the storage tank 5.

[0025] Those skilled in the art will understand that the base 2, which is fixedly connected to the bottom of the fuselage 1, provides the mounting foundation for each component. The shock-absorbing legs 3 on the left and right sides of the base 2 act as a buffer when the UAV lands. The placement slot 4 at the center of the top of the fuselage 1 is used to position the storage tank 5, and the bracket 6 further fixes the storage tank 5 to ensure its stability during flight. During the cleaning operation, the water supply mechanism 15 delivers the cleaning fluid in the storage tank 5 to the diversion pipe 9, and then sprays it out through several high-pressure nozzles 10 on the front side of the diversion pipe 9. At the same time, the motor 12 at the bottom of the base 2 starts, driving the turntable 13 at the output end to rotate. The drive rod 14 on the edge of the turntable 13 slides in the long strip movable groove of the swing plate 11, pushing the swing plate 11 to drive the rotating frame 8 to swing back and forth around the rotation axis between the two fixed plates 7, ultimately causing the diversion pipe 9 and the high-pressure nozzles 10 to swing synchronously, expanding the cleaning range.

[0026] No need to control the overall movement of the drone; the high-pressure nozzle 10 can be reciprocated through mechanical transmission, effectively avoiding cleaning omissions caused by insufficient drone movement precision. At the same time, the shock-absorbing legs 3 on both sides of the base 2 provide protection for the equipment landing, balancing cleaning efficiency, comprehensiveness, and equipment safety, and is suitable for various outdoor photovoltaic panel cleaning scenarios.

[0027] Example 2

[0028] Furthermore, the bracket 6 includes several support rods 16 fixedly connected to the top of the body 1 and arranged in a circular array. The top ends of the several support rods 16 are fixedly connected to a support ring 17 coaxial with the placement groove 4. Since the support ring 17 is coaxial with the placement groove 4, the storage bucket 5 can be accurately inserted into the support ring 17, realizing the coaxial positioning of the storage bucket 5 above the placement groove 4.

[0029] Those skilled in the art will understand that the several support rods 16 arranged in a ring array on the top of the body 1 provide stable support for the support ring 17, and the support ring 17 is coaxial with the placement groove 4 at the center of the top of the body 1; when the storage bucket 5 is inserted into the placement groove 4, it can be simultaneously and accurately embedded in the support ring 17. Through the dual positioning of the support ring 17 and the placement groove 4, it is ensured that the storage bucket 5 is always in the center position during the drone flight and cleaning operation, avoiding displacement.

[0030] By cooperating with the support rod 16 and the support ring 17, the storage tank 5 is accurately positioned coaxially, preventing the storage tank 5 from shifting or shaking due to flight turbulence, thus ensuring the stability of cleaning fluid storage and transportation. At the same time, the structure of the ring array support rod 16 reduces the amount of material used while ensuring support strength, taking into account both lightweight and practicality.

[0031] Example 3

[0032] Furthermore, the support ring 17 has a slot 18 at its top, the storage tank 5 has an outer edge at its top outer ring, the outer edge of the storage tank 5 is engaged in the slot 18, the support ring 17 has a threaded connection to a plurality of locking bolts 19 arranged in a ring array, and the storage tank 5 has a locking groove 20 corresponding to each locking bolt 19 on its outer edge.

[0033] Those skilled in the art will understand that by turning the locking bolts 19 distributed in a ring array on the outer ring of the support ring 17, the end of each locking bolt 19 is embedded in the corresponding locking groove 20 on the outer edge of the storage tank 5, further fixing the storage tank 5 in the radial direction, preventing the storage tank 5 from moving up and down or shifting radially during flight and cleaning, and maintaining the stability of the storage tank 5 even when the wind speed changes at high altitude or the equipment vibrates, avoiding the risk of cleaning fluid leakage or the storage tank 5 falling off, and improving the overall safety and reliability of the equipment.

[0034] Example 4

[0035] Furthermore, a water inlet 21 is provided at the center of the top of the storage tank 5, and a sealing cap 22 is threadedly connected to the top of the water inlet 21. Two symmetrically distributed handles 23 are also fixedly connected to the top of the storage tank 5.

[0036] Those skilled in the art will understand that the water inlet 21 at the top center of the storage tank 5 provides a channel for replenishing the cleaning fluid. When the cleaning fluid is insufficient, the sealing cap 22 connected to the threaded top of the water inlet 21 can be unscrewed to add cleaning fluid to the storage tank 5. After adding, the sealing cap 22 is tightened to prevent the cleaning fluid from leaking or spilling during flight. The two handles 23 symmetrically distributed on the top of the storage tank 5 make it convenient for operators to pick up and put down the storage tank 5. Especially when the storage tank 5 is full of cleaning fluid and its weight increases, the handles 23 can reduce the difficulty of handling.

[0037] Example 5

[0038] Furthermore, the shock-absorbing outrigger 3 includes two sliding rods 301 fixedly connected to the side wall of the base 2 and inclined outward. The lower half of the two sliding rods 301 are slidably connected to a sliding sleeve 302. A sliding plate 303 is fixedly connected between the bottom ends of the two sliding rods 301. The sliding plate 303 is slidably disposed inside the sliding sleeve 302. Several sliding rods 304 are fixedly connected inside the sliding sleeve 302. The sliding plate 303 is slidably connected to each sliding rod 304. Two springs 305 are sleeved on the sliding rods 304 located on the upper and lower sides of the sliding plate 303. The opposite ends of the upper and lower springs 305 are fixedly connected to the sliding plate 303. The ends of the upper and lower springs 305 that are far apart from each other are fixedly connected to the inner top and inner bottom of the sliding sleeve 302, respectively. A ground contact foot 306 is fixedly connected to the bottom of the sliding sleeve 302.

[0039] Those skilled in the art will understand that when the UAV lands, and the ground contact foot 306 at the bottom of the sliding sleeve 302 contacts the ground and is subjected to impact force, the sliding sleeve 302 slides upward, causing the sliding rod 304 to move relative to the sliding plate 303. At this time, the springs 305 on the upper and lower sides of the sliding plate 303 are compressed and stretched respectively, absorbing the impact force through the elastic deformation of the springs 305. After the impact force disappears, the springs 305 return to their original shape, causing the sliding sleeve 302 to reset. This effectively buffers the ground impact force during landing, avoids structural damage caused by the rigid collision between the ground contact foot 306 and the ground, and reduces the transmission of impact force to the base 2 and the body 1, protecting core components such as the storage tank 5 on the top of the body 1 and the water pump 1501 at the bottom of the base 2, thus extending the overall service life of the equipment.

[0040] Example 6

[0041] Furthermore, the water supply mechanism 15 includes a water pump 1501 fixedly connected to the bottom of the base 2. The output end of the water pump 1501 is connected to a first delivery pipe 1502. The other end of the first delivery pipe 1502 is connected to a diversion pipe 9. The input end of the water pump 1501 is connected to a second delivery pipe 1503. A water suction pipe 1504 is provided inside the storage tank 5. The top end of the water suction pipe 1504 extends out of the top of the storage tank 5. The end of the second delivery pipe 1503 away from the water pump 1501 is detachably connected to the top end of the water suction pipe 1504.

[0042] Those skilled in the art will understand that in the water supply mechanism 15, the water pump 1501 fixed at the bottom of the base 2 serves as the power source. After startup, the second delivery pipe 1503 at the input end cooperates with the water pump 1504 to draw the cleaning fluid from the storage tank 5 to the water pump 1501. Subsequently, the cleaning fluid is delivered to the distribution pipe 9 via the first delivery pipe 1502 at the output end of the water pump 1501. The distribution pipe 9 evenly distributes the cleaning fluid to several high-pressure nozzles 10 on the front side, ultimately acting on the photovoltaic panel surface in the form of high-pressure jets to achieve cleaning. The detachable second delivery pipe 1503 and water pump 1504 facilitate equipment maintenance and the individual removal and placement of the storage tank 5.

[0043] The working principle and usage procedure of this device are as follows: Before use, first move the storage tank 5 to the body 1 using the handle 23, open the sealing cover 22, add sufficient cleaning fluid to the storage tank 5, and tighten the sealing cover 22 after adding the fluid. Then, insert the storage tank 5 into the placement slot 4 at the center of the top of the body 1, so that the outer edge of the top outer ring of the storage tank 5 is engaged in the slot 18. Then, turn the several locking bolts 19 distributed in the annular array on the outer ring of the support ring 17 so that each locking bolt 19 is embedded in the corresponding locking slot 20 on the outer edge of the storage tank 5, thus fixing the storage tank 5. Next, connect and fix the second delivery pipe 1503 at the input end of the water pump 1501 in the water supply mechanism 15 to the top end of the water suction pipe 1504 extending from the storage tank 5. Then, start the drone, and the power structure on the side of the body 1 drives the drone to start. The drone flies over the photovoltaic panel to be cleaned. At this time, the water pump 1501 at the bottom of the base 2 is started. The water pump 1501 draws the cleaning liquid from the storage tank 5 through the second delivery pipe 1503 and the water suction pipe 1504. The cleaning liquid is delivered to the diversion pipe 9 through the first delivery pipe 1502 at the output end of the water pump 1501. Then, several high-pressure nozzles 10 on the front side of the diversion pipe 9 spray the liquid onto the surface of the photovoltaic panel in a high-pressure manner. At the same time, the motor 12 is started. The motor 12 drives the turntable 13 at the output end to rotate. The drive rod 14 of the turntable 13 near the edge of the swing plate 11 slides in the long strip movable groove of the swing plate 11, pushing the swing plate 11 to drive the rotating frame 8 to swing back and forth around the rotation axis between the two fixed plates 7. This causes the diversion pipe 9 and the high-pressure nozzles 10 to swing synchronously, expanding the cleaning coverage area. After the cleaning operation is completed, the drone is controlled to land. The ground contact feet 306 in the shock-absorbing legs 3 on the left and right sides of the base 2 first contact the ground. The impact force of the ground causes the sliding sleeve 302 to slide upward relative to the two sliding rods 301. The sliding rod 304 inside the sliding sleeve 302 moves relative to the sliding plate 303. The springs 305 on the upper and lower sides of the sliding plate 303 are compressed and stretched respectively to absorb the impact force and prevent the impact force from being transmitted to the body 1 and internal components until the drone lands smoothly. All power components are turned off to complete one cleaning operation.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An unmanned vehicle for cleaning photovoltaic panels, comprising a body (1), characterized in that, The bottom of the body (1) is fixedly connected to a base (2), and shock-absorbing legs (3) are fixedly connected to both the left and right sides of the base (2). A placement groove (4) is opened at the center of the top of the body (1), and a storage tank (5) is inserted into the placement groove (4). A bracket (6) for fixing the storage tank (5) is also provided on the top of the body (1). Two fixed plates (7) are fixedly connected at intervals on the left and right sides near the front edge of the bottom of the base (2). A rotating frame (8) is rotatably connected between the two fixed plates (7). A diversion pipe (9) is fixedly connected to the front side of the rotating frame (8). Several high-pressure nozzles (10) are connected to the front side of the pipe (9). A swing plate (11) is fixedly connected to the rear side of the rotating frame (8). A long strip-shaped movable groove is opened on the swing plate (11) along the horizontal direction. A motor (12) adapted to the position of the swing plate (11) is also fixedly connected to the bottom of the base (2). A turntable (13) is fixedly connected to the output end of the motor (12). A drive rod (14) located in the long strip-shaped movable groove is fixedly connected to the edge of the turntable (13) near the swing plate (11). A water supply mechanism (15) is connected between the diversion pipe (9) and the storage tank (5).

2. The drone for cleaning photovoltaic panels according to claim 1, characterized in that, The bracket (6) includes several support rods (16) fixedly connected to the top of the body (1) and arranged in a ring array. The top ends of the several support rods (16) are fixedly connected to a support ring (17) coaxial with the placement slot (4). Since the support ring (17) is coaxial with the placement slot (4), the storage bucket (5) can be accurately inserted into the support ring (17) to achieve coaxial positioning of the storage bucket (5) above the placement slot (4).

3. A drone for cleaning photovoltaic panels according to claim 2, characterized in that, The support ring (17) has a slot (18) at the top, the storage barrel (5) has an outer edge at the top outer ring, the outer edge of the storage barrel (5) is locked in the slot (18), the support ring (17) has a threaded connection with a number of locking bolts (19) arranged in a ring array, and the storage barrel (5) has a locking groove (20) corresponding to each locking bolt (19) on the outer edge.

4. The unmanned aerial vehicle for cleaning photovoltaic panels according to claim 1, characterized in that, The storage tank (5) has a water inlet (21) at the top center, and a sealing cap (22) is threaded onto the top of the water inlet (21). The storage tank (5) also has two symmetrically distributed handles (23) fixedly connected to the top.

5. The drone for cleaning photovoltaic panels according to claim 1, characterized in that, The shock-absorbing outrigger (3) includes two sliding rods (301) fixedly connected to the side wall of the base (2) and inclined outward. The lower half of the two sliding rods (301) are slidably connected to a sliding sleeve (302). A sliding plate (303) is fixedly connected between the bottom ends of the two sliding rods (301). The sliding plate (303) is slidably disposed inside the sliding sleeve (302). Several sliding rods (304) are fixedly connected inside the sliding sleeve (302). The sliding plate (303) is slidably connected to each sliding rod (304). Two springs (305) located on the upper and lower sides of the sliding plate (303) are sleeved on the sliding rods (304). The opposite ends of the upper and lower springs (305) are fixedly connected to the sliding plate (303). The ends of the upper and lower springs (305) that are far apart from each other are fixedly connected to the inner top and inner bottom of the sliding sleeve (302), respectively. A ground contact foot (306) is fixedly connected to the bottom of the sliding sleeve (302).

6. The drone for cleaning photovoltaic panels according to claim 1, characterized in that, The water supply mechanism (15) includes a water pump (1501) fixedly connected to the bottom of the base (2). The output end of the water pump (1501) is connected to a first delivery pipe (1502). The other end of the first delivery pipe (1502) is connected to a diversion pipe (9). The input end of the water pump (1501) is connected to a second delivery pipe (1503). A water pumping pipe (1504) is provided inside the storage tank (5). The top end of the water pumping pipe (1504) extends out of the top of the storage tank (5). The end of the second delivery pipe (1503) away from the water pump (1501) is detachably connected to the top end of the water pumping pipe (1504).

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