Solar photovoltaic panel cleaning device

Abstract

The invention relates to the technical field of photovoltaic panel cleaning devices, in particular to a solar photovoltaic panel cleaning device. According to the technical scheme, the photovoltaic panel cleaning device comprises an L-shaped support and an obliquely-arranged photovoltaic panel connected to one side of the L-shaped support, and further comprises a cleaning rod arranged on the outer surface of the photovoltaic panel in a sliding mode, a supporting shell is installed at the upper end of the L-shaped support, and a reciprocating conveying mechanism for driving the cleaning rod is arranged in the supporting shell. The reciprocating conveying mechanism is arranged in the supporting shell, movement of the cleaning rod is controlled through the reciprocating conveying mechanism, cleaning of the outer surface of the photovoltaic panel is completed, the transmission mechanism is arranged at one end of the supporting shell, and the reciprocating conveying mechanism works to drive the water pressure power assembly to work through the transmission mechanism; therefore, water storage and water drainage of the two water storage tanks are completed respectively, a spray head on one side of a water spray pipe is kept in a water spray state when a cleaning rod moves, the cleaning effect is guaranteed, and the water spray amount of the spray head can be controlled according to the moving speed of the cleaning rod.

Description

Technical Field

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

[0002] Solar photovoltaic panels are devices that convert solar radiation into electrical energy. They are mainly composed of solar cell modules, brackets, and panel surface covering layers. Among them, the solar cell module is the core part of the photovoltaic panel, which is composed of many photovoltaic cells and is the key to converting light energy into electrical energy. The bracket is an important part of supporting the photovoltaic panel, usually made of metal or alloy materials, to ensure the stability of the photovoltaic panel during installation. The panel surface covering layer is a layer of transparent material that covers the entire surface of the photovoltaic panel to protect the solar cell module from damage or contamination.

[0003] In order to ensure the light absorption effect of the photovoltaic panels, the covering layer on the surface of the photovoltaic panels will be cleaned regularly. For this purpose, the patent with announcement number: CN218692395U discloses a solar photovoltaic panel cleaning device, including a fixed frame, a first mounting frame is inserted on one side of the fixed frame, a water tank is provided in the middle of the upper surface of the first mounting frame, a second mounting frame is provided on the other side of the fixed frame, a drain pipe is provided on the side of the water tank close to the second mounting frame, a motor is provided above the second mounting frame, a gear is sleeved in the middle of the outer surface of the output end of the motor, and a fixing ear is provided in the middle of the side close to the first mounting frame and the second mounting frame; the first mounting frame and the second mounting frame are both hollow, and a plurality of mounting openings are evenly opened on the upper surfaces of the first mounting frame and the second mounting frame, and the first mounting frame The inner walls of both sides of the mounting opening of the second mounting frame are provided with gear rollers, the gears mesh with the gear rollers in the middle of the upper surface of the second mounting frame, the first mounting frame and the second mounting frame are provided with a plurality of openings on the side close to each other, the two ends of the first mounting frame and the second mounting frame are provided with connecting rods, the middle of the lower surface of the connecting rod is provided with a sponge bar, the lower surface of the second mounting frame is provided with a recycling box, the interior of the recycling box is provided with a filter screen and a sponge board; the side close to the two fixed ears is provided with a hollow movable roller, one end of the movable roller is connected to the end of the drain pipe away from the water tank, the other end of the movable roller is connected to the output end of the motor, the outer surface of the movable roller is evenly provided with a plurality of water outlet holes, and the outer surface of the movable roller is provided with a sponge column. In the process of cleaning a large area of ​​solar photovoltaic panels, the cleaning device can move and clean the surface of the solar photovoltaic panel, and wipe it twice after cleaning to reduce the moisture on the surface, which is conducive to reducing the adsorption of dust after cleaning.

[0004] However, the cleaning device in the above patent still has certain drawbacks when cleaning photovoltaic panels. It is not convenient to control the water output according to the specific cleaning situation. The cleaning device covers a large area of ​​the photovoltaic panel, which will affect the efficiency of lighting to a certain extent. It is also not convenient to automatically complete the cleaning. In view of this, the present application proposes a solar photovoltaic panel cleaning device. Summary of the invention

[0005] The purpose of this application is to propose a solar photovoltaic panel cleaning device in response to the technical problems pointed out in the background technology.

[0006] The technical solution of the present application is a solar photovoltaic panel cleaning device, comprising an L-shaped bracket and an inclined photovoltaic panel connected to one side thereof, and further comprising:

[0007] A cleaning rod is slidably arranged on the outer surface of the photovoltaic panel, a support shell is installed on the upper end of the L-shaped bracket, and a reciprocating conveying mechanism for driving the cleaning rod is arranged in the support shell;

[0008] A water spray pipe is embedded in a corner of the support shell close to the photovoltaic panel, and one side of the water spray pipe is connected to a plurality of spray heads facing the photovoltaic panel;

[0009] A pair of water storage tanks are connected to the upper end of the L-shaped bracket, and a hydraulic power assembly is arranged in each of the two water storage tanks. The two hydraulic power assemblies include a second reciprocating screw rod that respectively penetrates the two water storage tanks, and the two second reciprocating screw rods are connected by a first pulley member;

[0010] A first water inlet pipe and a first drainage pipe are provided at one end of one of the water storage tanks, and a second water inlet pipe and a second drainage pipe are provided at the other end of the other water storage tank;

[0011] One end of the reciprocating conveying mechanism is provided with a transmission mechanism for driving one of the second reciprocating screw rods, which is used to control the water spraying amount of the nozzle according to the moving speed of the cleaning rod.

[0012] Preferably, the reciprocating conveying mechanism comprises a first reciprocating screw rod rotatably connected in the supporting shell, and a side wall transmission sleeve of the first reciprocating screw rod is provided with a movable sleeve block;

[0013] The side wall of the support shell is provided with a downwardly inclined guide groove, one end of the movable sleeve block is fixedly connected with a guide plate slidably arranged in the guide groove, the outer end of the guide plate is fixedly connected with a connecting block, and the cleaning rod is fixedly connected to the connecting block.

[0014] Preferably, the transmission mechanism comprises a first transmission rod penetrating and rotatably connected to one end of the support housing, and the first transmission rod is fixedly connected to the end of the first reciprocating screw rod;

[0015] A functional box is connected to the bottom end of one side of the support shell, a second transmission rod is rotatably connected to the side wall of the functional box, and the second transmission rod is transmitted to the first transmission rod via a second pulley.

[0016] Preferably, the upper end of one of the second reciprocating screws extends into the function box and is fixedly connected to a driven bevel gear, and the inner end of the second transmission rod is fixedly connected to a driving bevel gear meshing with the driven bevel gear.

[0017] Preferably, a guide frame is fixedly connected to the inner center portion of the water storage tank, the second reciprocating screw is rotatably connected in the guide frame, the hydraulic power assembly also includes a lifting transmission block sleeved on the side wall of the second reciprocating screw, the lifting transmission block is located in the guide frame, a piston ring is slidably connected between the inner wall of the water storage tank and the outer wall of the guide frame, and the piston ring and the lifting transmission block attract each other and transmit synchronously.

[0018] Preferably, one end of one of the water storage tanks away from the first water inlet pipe is connected to an air pipe, and another end of the other water storage tank away from the second water inlet pipe is also connected to an air pipe, so as to balance the internal air pressure of the two water storage tanks.

[0019] Preferably, the first water inlet pipe member includes a first water injection pipe connected to one of the water storage tanks, and a one-way valve a is provided on the first water injection pipe; the first drainage pipe member includes a first water outlet pipe connected to the water spray pipe, and a one-way valve c is provided on the first water outlet pipe;

[0020] The second water inlet pipe comprises a second water injection pipe connected to another water storage tank, and a guide valve b is arranged on the second water injection pipe. The second water discharge pipe comprises a second water outlet pipe connected to the water spray pipe, and a one-way valve d is arranged on the second water outlet pipe.

[0021] Compared with the prior art, this application has the following beneficial technical effects:

[0022] The present application completes the cleaning of the outer surface of the photovoltaic panel by arranging a reciprocating conveying mechanism in the supporting shell and controlling the movement of the cleaning rod through the reciprocating conveying mechanism. By arranging a transmission mechanism at one end of the supporting shell, the reciprocating conveying mechanism drives the hydraulic power component to work through the transmission mechanism, thereby completing the water storage and drainage of the two water storage tanks respectively, so that the nozzle on one side of the water spray pipe keeps spraying water when the cleaning rod moves, thereby ensuring the cleaning effect.

[0023] In the present application, the transmission mechanism is set up to make the rotation speed of the first reciprocating screw rod proportional to the rotation speed of the second reciprocating screw rod. Therefore, when the first reciprocating screw rod rotates faster to speed up the movement of the cleaning rod, the rotation speed of the second reciprocating screw rod will also be accelerated under the transmission of the transmission mechanism, thereby increasing the water spraying speed of the nozzle, thereby improving the cleaning efficiency and being suitable for cleaning different photovoltaic panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a stereogram of a solar photovoltaic panel cleaning device;

[0025] Figure 2 yes Figure 1 A schematic diagram of the structure of another water storage tank;

[0026] Figure 3 yes Figure 1 A partial cross-sectional view of the middle support shell;

[0027] Figure 4 yes Figure 1 The enlarged structural diagram at A in the middle;

[0028] Figure 5 yes Figure 2 The enlarged structural diagram at B in the middle;

[0029] Figure 6 is a cross-sectional view of the water storage tank in this application;

[0030] Figure 7 yes Figure 6 Enlarged structural diagram at point C in the middle.

[0031] Reference numerals: 1. L-shaped bracket; 2. photovoltaic panel; 3. supporting shell;

[0032] 4. Reciprocating conveying mechanism; 41. Moving sleeve block; 42. First reciprocating screw rod; 44. Guide groove; 45. Guide plate; 46. Connecting block;

[0033] 5. Support box; 6. Cleaning rod;

[0034] 7. Transmission mechanism; 71. First transmission rod; 72. Function box; 73. Second transmission rod; 74. Second pulley member;

[0035] 8. Water pressure power assembly; 81. Second reciprocating screw; 82. Lifting transmission block; 83. Piston ring;

[0036] 9. first pulley member; 10. water spray pipe; 11. spray head;

[0037] 12. first water inlet pipe; 121. first water injection pipe; 122. one-way valve a;

[0038] 13. Second water inlet pipe; 131. Second water injection pipe; 132. Guide valve b;

[0039] 14. First drainage pipe; 141. First water outlet pipe; 142. One-way valve c;

[0040] 15. Second drainage pipe fitting; 151. Second water outlet pipe; 152. One-way valve d;

[0041] 16. Air pipe; 17. Water storage tank; 18. Guide frame; 19. Groove. DETAILED DESCRIPTION

[0042] The technical solution of the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] Example

[0044] like Figure 1-Figure 7 As shown, a solar photovoltaic panel cleaning device proposed in the present application includes an L-shaped bracket 1 and an inclined photovoltaic panel 2 connected to one side thereof, wherein the outer surface of the photovoltaic panel 2 is provided with a covering layer.

[0045] It also includes a cleaning rod 6 slidably arranged on the outer surface of the photovoltaic panel 2, and the inner surface of the cleaning rod 6 is provided with a soft brush for scrubbing the outer surface of the photovoltaic panel 2. A supporting shell 3 is installed on the upper end of the L-shaped bracket 1, and a reciprocating conveying mechanism 4 for driving the cleaning rod 6 is arranged in the supporting shell 3, so that the cleaning rod 6 automatically moves back and forth on the outer surface of the photovoltaic panel 2 to complete cleaning.

[0046] A water spray pipe 10 is embedded in a corner of the support shell 3 close to the photovoltaic panel 2. One side of the water spray pipe 10 is connected to a plurality of spray heads 11 facing the photovoltaic panel 2 for spraying water at an inclined angle to the outer surface of the photovoltaic panel 2.

[0047] A pair of water tanks 17 are connected to the upper end of the L-shaped bracket 1, and a hydraulic power assembly 8 is arranged in each of the two water tanks 17. The two hydraulic power assemblies 8 include second reciprocating screws 81 that respectively penetrate the two water tanks 17, and the two second reciprocating screws 81 are connected by a first pulley member 9. The first pulley member 9 includes a first pulley fixedly mounted on the upper ends of the two second reciprocating screws 81, and the two first pulleys are connected by a first belt transmission.

[0048] A first water inlet pipe 12 and a first drainage pipe 14 are disposed at one end of one of the water storage tanks 17, and a second water inlet pipe 13 and a second drainage pipe 15 are disposed at the other end of the other water storage tank 17, so as to alternately complete water replenishment and drainage.

[0049] A transmission mechanism 7 for driving one of the second reciprocating screw rods 81 is disposed at one end of the reciprocating conveying mechanism 4 , so as to control the water spraying amount of the spray head 11 according to the moving speed of the cleaning rod 6 .

[0050] Specifically, the reciprocating conveying mechanism 4 includes a first reciprocating screw 42 rotatably connected to the support shell 3, one end of the support shell 3 is connected to a support box 5, a servo motor is installed in the support box 5, and the output shaft of the servo motor is fixedly connected to one end of the first reciprocating screw 42. The side wall transmission sleeve of the first reciprocating screw 42 is provided with a moving sleeve block 41, and the moving sleeve block 41 is slidably connected to the inner wall of the support shell 3. The side wall of the support shell 3 is provided with a downwardly inclined guide groove 44 to prevent rainwater from entering the interior of the support shell 3 on rainy days. Even if a small amount of rainwater enters, it will be discharged outward through the guide groove 44. One end of the moving sleeve block 41 is fixedly connected to a guide plate 45 slidably arranged in the guide groove 44, and the outer end of the guide plate 45 is fixedly connected to a connecting block 46, and the cleaning rod 6 is fixedly connected to the connecting block 46. The transmission mechanism 7 includes a first transmission rod 71 that is connected to one end of the support housing 3 through rotation. The first transmission rod 71 is fixedly connected to the end of the first reciprocating screw rod 42, and the first transmission rod 71 is driven to rotate synchronously by the rotation of the first reciprocating screw rod 42. A function box 72 is connected to the bottom end of one side of the support housing 3, and a second transmission rod 73 is connected to the side wall of the function box 72 through rotation. The second transmission rod 73 and the first transmission rod 71 are driven by a second pulley 74. The second pulley 74 includes a second pulley fixedly sleeved on the side walls of the first transmission rod 71 and the second transmission rod 73, and the two second pulleys are connected by a second belt transmission. The upper end of one of the second reciprocating screw rods 81 extends into the function box 72 and is fixedly connected to a driven bevel gear. The inner end of the second transmission rod 73 is fixedly connected to an active bevel gear that meshes with the driven bevel gear. Then, the second transmission rod 73 rotates to drive one of the second reciprocating screw rods 81.

[0051] Furthermore, the inner center of the water storage tank 17 is fixedly connected with a guide frame 18, the second reciprocating screw 81 is rotatably connected in the guide frame 18, the hydraulic power assembly 8 also includes a lifting transmission block 82 which is sleeved on the side wall of the second reciprocating screw 81, the lifting transmission block 82 is located in the guide frame 18, a piston ring 83 is slidably connected between the inner wall of the water storage tank 17 and the outer wall of the guide frame 18, the piston ring 83 and the lifting transmission block 82 attract each other and transmit synchronously, the outer wall of the lifting transmission block 82 and the inner wall of the piston ring 83 are fixedly connected with magnet rings that attract each other, so that the movement of the lifting transmission block 82 can drive the piston ring 83 to move synchronously. One end of one of the water storage tanks 17 away from the first water inlet pipe 12 is connected to an air pipe 16, and the other end of the water storage tank 17 away from the second water inlet pipe 13 is also connected to an air pipe 16, which is used to balance the air pressure inside the two water storage tanks 17 so that the piston ring 83 can move normally. The bottom end of the L-shaped bracket 1 is provided with a pair of grooves 19 respectively located below the two water tanks 17 , wherein the air pipe 16 at one end of one water tank 17 is accommodated in the corresponding groove 19 , and the second water inlet pipe 13 is accommodated in the other groove 19 .

[0052] Specifically, the first water inlet pipe 12 includes a first water injection pipe 121 connected to one of the water storage tanks 17, the first water injection pipe 121 is connected to an external water tank, and a one-way valve a122 is provided on the first water injection pipe 121, so that the first water injection pipe 121 can only inject water into the water storage tank 17, and the water in the water storage tank 17 will not flow out through the first water injection pipe 121, and the first drainage pipe 14 includes a first water outlet pipe 141 connected to the water spray pipe 10, and a one-way valve c142 is provided on the first water outlet pipe 141, so that the water in the water storage tank 17 can flow into the water spray pipe 10 in one direction under the compression of the piston ring 83, and the water in the water spray pipe 10 will not enter the water storage tank 17. The second water inlet pipe 13 includes a second water injection pipe 131 connected to another water storage tank 17, the second water injection pipe 131 is connected to an external water tank, and a guide valve b132 is provided on the second water injection pipe 131, so that the second water injection pipe 131 will only inject water into the water storage tank 17, and the water in the water storage tank 17 will not flow out through the second water injection pipe 131. The second drainage pipe 15 includes a second water outlet pipe 151 connected to the water spray pipe 10, and a one-way valve d152 is provided on the second water outlet pipe 151, so that the water in the corresponding water storage tank 17 can flow into the water spray pipe 10 in one direction under the squeezing of the corresponding piston ring 83, and the water in the water spray pipe 10 will not enter the water storage tank 17.

[0053] The working principle of this embodiment is as follows: when the photovoltaic panel 2 needs to be cleaned, the servo motor is first started, and the output shaft of the servo motor rotates to drive the first reciprocating screw 42 to rotate, thereby driving the movable sleeve 41 to reciprocate in the support shell 3 (the number of reciprocating movements of the movable sleeve 41 can be controlled according to specific needs), and the movable sleeve 41 moves to drive the guide plate 45 to move in the guide groove 44, and finally drives the cleaning rod 6 to move through the connecting block 46, so that the cleaning rod 6 cleans the outer surface of the photovoltaic panel 2. The rotation of the first reciprocating screw 42 also drives the first transmission rod 71 to rotate, and the rotation of the first transmission rod 71 drives the second transmission rod 73 to rotate through the second pulley member 74, and then drives one of the second reciprocating screws 81 to rotate through the meshing transmission of the active bevel gear and the driven bevel gear, and one of the second reciprocating screws 81 rotates through the first pulley member 9 to drive another second reciprocating screw 81 to rotate, and the two second reciprocating screws 81 rotate to drive the two lifting transmission blocks 82 to move upward, and the piston ring 83 moves synchronously with the lifting transmission block 82. Specifically, one of the piston rings 83 moves upward. The water in one of the water storage tanks 17 is squeezed into the water spray pipe 10 through the first water outlet pipe 141, and then sprayed toward the photovoltaic panel 2 through a plurality of nozzles 11, so as to achieve the effect of the cleaning rod 6 moving and cleaning while spraying water (when the rotation speed of the first reciprocating screw 42 is fast, the moving speed of the cleaning rod 6 is accelerated, and at the same time, the rotation speed of the second reciprocating screw 81 is also accelerated, and the rising speed of the piston ring 83 is also accelerated, so that the nozzle 11 sprays water more rapidly); when the other piston ring 83 moves upward, the second water injection pipe 131 at the bottom of the other water storage tank 17 will suck water into the water storage tank 17. When the two piston rings 83 move to the upper end of the water storage tank 17, if the two second reciprocating screws 81 continue to rotate, the two lifting transmission blocks 82 and the piston ring 83 will move downward, so that the two water storage tanks 17 complete the above-mentioned opposite effect (alternately complete water absorption and squeezing), so that when the cleaning rod 6 returns to clean, it will still complete the water spray cleaning, ensuring the cleaning effect of the photovoltaic panel. The whole process automatically completes the cleaning of the photovoltaic panel, and the cleaning times of the cleaning rod 6 can be controlled according to the contamination degree of the photovoltaic panel. The cleaning rod 6 will spray water synchronously when moving, and the speed of water spraying is proportional to the speed of movement of the cleaning rod 6, thereby ensuring the cleaning effect.

[0054] The above-mentioned specific embodiments are merely preferred embodiments of the present application. Based on the technical solutions of the present application and the relevant inspirations of the above-mentioned embodiments, those skilled in the art may make various alternative improvements and combinations to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely explanations of the present application, and they are not limitations of the present application.

Claims

1. A solar photovoltaic panel cleaning device, comprising an L-shaped bracket (1) and a photovoltaic panel (2), characterized in that: Also includes: A cleaning rod (6) is slidably arranged on the outer surface of the photovoltaic panel (2), a support shell (3) is installed on the upper end of the L-shaped bracket (1), and a reciprocating conveying mechanism (4) for driving the cleaning rod (6) is arranged in the support shell (3); A water spray pipe (10) is embedded in a corner of the support shell (3) close to the photovoltaic panel (2), and one side of the water spray pipe (10) is connected to a plurality of spray heads (11).

2. A solar photovoltaic panel cleaning device according to claim 1, characterized in that: A pair of water storage tanks (17) are connected to the upper end of the L-shaped bracket (1), and a hydraulic power assembly (8) is arranged in each of the two water storage tanks (17). The two hydraulic power assemblies (8) include a second reciprocating screw rod (81) respectively penetrating the two water storage tanks (17), and the two second reciprocating screw rods (81) are connected in transmission via a first pulley member (9).

3. A solar photovoltaic panel cleaning device according to claim 2, characterized in that: A first water inlet pipe (12) and a first water discharge pipe (14) are provided at one end of one of the water storage tanks (17), and a second water inlet pipe (13) and a second water discharge pipe (15) are provided at the other end of the other water storage tank (17); One end of the reciprocating conveying mechanism (4) is provided with a transmission mechanism (7) for driving one of the second reciprocating screw rods (81) and is used to control the water spraying amount of the spray head (11) according to the moving speed of the cleaning rod (6).

4. A solar photovoltaic panel cleaning device according to claim 3, characterized in that: The reciprocating conveying mechanism (4) comprises a first reciprocating screw rod (42) rotatably connected to the supporting shell (3), and a side wall transmission sleeve of the first reciprocating screw rod (42) is provided with a movable sleeve block (41); A downwardly inclined guide groove (44) is formed on the side wall of the support shell (3); one end of the movable sleeve block (41) is fixedly connected to a guide plate (45) slidably arranged in the guide groove (44); an outer end of the guide plate (45) is fixedly connected to a connecting block (46); and the cleaning rod (6) is fixedly connected to the connecting block (46).

5. A solar photovoltaic panel cleaning device according to claim 4, characterized in that: The transmission mechanism (7) comprises a first transmission rod (71) which penetrates and is rotatably connected to one end of the support housing (3); the first transmission rod (71) is fixedly connected to the end of the first reciprocating screw rod (42); A functional box (72) is connected to the bottom end of one side of the support shell (3); a second transmission rod (73) is rotatably connected to the side wall of the functional box (72); the second transmission rod (73) and the first transmission rod (71) are driven by a second pulley (74).

6. A solar photovoltaic panel cleaning device according to claim 5, characterized in that: The upper end of one of the second reciprocating screw rods (81) extends into the function box (72) and is fixedly connected to a driven bevel gear, and the inner end of the second transmission rod (73) is fixedly connected to a driving bevel gear meshing with the driven bevel gear.

7. A solar photovoltaic panel cleaning device according to claim 6, characterized in that: The inner center portion of the water storage tank (17) is fixedly connected to a guide frame (18); the second reciprocating screw (81) is rotatably connected in the guide frame (18); the hydraulic power assembly (8) further comprises a lifting transmission block (82) sleeved on the side wall of the second reciprocating screw (81); the lifting transmission block (82) is located in the guide frame (18); a piston ring (83) is slidably connected between the inner wall of the water storage tank (17) and the outer wall of the guide frame (18); the piston ring (83) and the lifting transmission block (82) attract each other and transmit synchronously.

8. A solar photovoltaic panel cleaning device according to claim 3, characterized in that: One end of one of the water storage tanks (17) away from the first water inlet pipe (12) is connected to an air pipe (16), and another end of the other water storage tank (17) away from the second water inlet pipe (13) is also connected to an air pipe (16), so as to balance the air pressure inside the two water storage tanks (17).

9. A solar photovoltaic panel cleaning device according to claim 8, characterized in that: The first water inlet pipe member (12) comprises a first water injection pipe (121) connected to one of the water storage tanks (17), and a one-way valve a (122) is provided on the first water injection pipe (121). The first water discharge pipe member (14) comprises a first water outlet pipe (141) connected to the water spray pipe (10), and a one-way valve c (142) is provided on the first water outlet pipe (141).

10. A solar photovoltaic panel cleaning device according to claim 9, characterized in that: The second water inlet pipe member (13) comprises a second water injection pipe (131) connected to another water storage tank (17), and a guide valve b (132) is provided on the second water injection pipe (131). The second water discharge pipe member (15) comprises a second water outlet pipe (151) connected to the water spray pipe (10), and a one-way valve d (152) is provided on the second water outlet pipe (151).

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