Photovoltaic panel cleaning device

By designing a photovoltaic panel cleaning device, which utilizes a brush driver and a cleaning hydraulic ejector to automate the cleaning of photovoltaic panels, the problems of bird droppings corrosion and cleaning safety risks are solved, and the cleaning efficiency and service life are improved.

CN121696152APending Publication Date: 2026-03-20DATANG TANGSHAN CAOFEIDIAN DISTRICT NEW ENERGY CO LTD
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Patent Information

Application Number
CN202511925444.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-19
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing solar panels on water surfaces are prone to corrosion after bird droppings accumulate, leading to a shortened lifespan. The cleaning process also poses risks to boat movement and personnel safety.

Method used

A photovoltaic panel cleaning device was designed, including a drive housing, a brush driver, a rotating brush body, a cleaning hydraulic outlet, and a drive separator. The brush driver realizes the reciprocating motion of the brush body, and the cleaning hydraulic outlet and drive separator enable multiple cleaning methods.

Benefits of technology

It enables automated cleaning of photovoltaic panels, reduces the safety risks of manual operation, improves cleaning efficiency and effectiveness, and extends the service life of photovoltaic panels.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a photovoltaic panel cleaning device. A worker needs to hold a cleaning device by hand to scrub a photovoltaic panel, so that the worker needs to continuously move forwards, backwards, leftwards and rightwards on a ship, and movement of the worker on the ship can cause shaking of the ship. The device comprises a driving box body, a brush driver, a rotating brush body, a cleaning fluid extrusion device and a driving separator, the rotating brush body is fixed to the brush driver, and the brush driver is connected into the driving box and used for reciprocating motion of the rotating brush body. The cleaning liquid press-out device is fixed in the driving box body, a liquid outlet of the cleaning liquid press-out device is connected with a liquid outlet hose, and the liquid outlet hose is connected with a liquid box of the rotating brush body; the driving separator is connected into the driving box body in a sliding mode and used for starting and stopping self-rotation cleaning of the rotating brush body. The photovoltaic panel cleaning device is used for photovoltaic panel cleaning.
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Description

Technical Field

[0001] This invention relates to the field of coal conveyor belt cleaning technology, specifically to a photovoltaic panel cleaning device. Background Technology

[0002] After installation, existing floating solar panels are frequently damaged by bird droppings. The accumulation of bird droppings corrodes the panels, shortening their lifespan and increasing maintenance costs. Cleaning the panels requires maneuvering a boat to clean them one by one, using handheld cleaning devices. This constant movement on the boat causes swaying and could even lead to workers losing their balance and falling into the water, increasing the risk of accidents during cleaning. Summary of the Invention

[0003] The purpose of this invention is to provide a photovoltaic panel cleaning device to solve the aforementioned technical problems.

[0004] The above objectives are achieved through the following technical solutions: A photovoltaic panel cleaning device comprises a drive housing, a brush driver, a rotating brush body, a cleaning hydraulic outlet, and a drive separator. The rotating brush body is fixed on the brush driver, and the brush driver is connected to the drive housing for the reciprocating motion of the rotating brush body. The cleaning hydraulic outlet is fixed in the drive housing, and the outlet of the cleaning hydraulic outlet is connected to the outlet hose, which is connected to the liquid box of the rotating brush body. The drive separator is slidably connected to the drive housing and is used to start and stop the self-rotation cleaning of the rotating brush body.

[0005] The photovoltaic panel cleaning device described above also includes a limit card connected to the side wall of the drive housing for limiting the reciprocating motion of the rotating brush body.

[0006] The photovoltaic panel cleaning device includes a brush driver comprising a drive seat fixed within the drive housing. A reciprocating lead screw is connected to the drive seat via a bearing. A slide is connected to the reciprocating lead screw, and the slide slide is slidably engaged with the drive seat. One end of the reciprocating lead screw extends through the drive housing and is fixed to a drive main bevel gear. A transmission box is fixed to the side wall of the drive housing, and a drive operating rod is connected to the transmission box via a bearing. A drive secondary bevel gear is fixed to the end of the drive operating rod, and the drive secondary bevel gear meshes with the drive main bevel gear.

[0007] The photovoltaic panel cleaning device includes a cleaning hydraulic outlet comprising a hydraulic cylinder. The hydraulic cylinder is connected to a cleaning liquid tank via a delivery pipe. The hydraulic cylinder is a hollow cylindrical tube with an upper piston and a lower piston connected inside. Both the upper piston and the lower piston are connected to a one-way diaphragm valve. The upper piston is fixed inside the hydraulic cylinder and is also fixed to a piston rod. The top of the piston rod is connected to a reciprocating pressing connecting rod.

[0008] The photovoltaic panel cleaning device includes a rotating brush body comprising a support, the support being connected to a brush shaft via a bearing, a drive gear fixed on the brush shaft, the drive gear meshing with a transmission gear, a support shaft fixed at the bottom of the support, the support shaft passing through the top of a connecting box and meshing with a rotating main bevel gear, a rotating operating rod rotatably connected inside the connecting box, and a rotating secondary bevel gear fixed at the end of the rotating operating rod, the rotating bevel gear meshing with the rotating secondary bevel gear.

[0009] The photovoltaic panel cleaning device includes a limiting clamp comprising a support rod slidably connected to the transmission box, a spring sleeved on the support rod, a trapezoidal locking block fixed at the bottom of the support rod, one side of the trapezoidal locking block being fixed to a limiting operating rod, a rotating operating rod extending through the drive box, the rotating operating rod having an annular groove, and the trapezoidal locking block being engaged in the annular groove of the rotating operating rod.

[0010] The photovoltaic panel cleaning device includes a drive separator comprising a rack plate that meshes with a transmission gear and is slidably connected to the side of the drive housing. A separation operation component for driving the rack plate is connected to the drive housing.

[0011] The photovoltaic panel cleaning device includes a reciprocating pressing linkage comprising a pressing operation rod rotatably connected to the side wall of the drive housing, a pressing connecting rod fixed to the end of the pressing operation rod, a rod seat fixed to the top of the piston rod, the rod seat being rotatably connected to a movable sleeve, and the pressing connecting rod being inserted into the movable sleeve.

[0012] In the photovoltaic panel cleaning device, the drive box is fixed on the support frame, and the support frame is fixed to the channel steel frame by bolts.

[0013] The photovoltaic panel cleaning device is described above. The liquid box is a square hollow box, and the front end of the liquid box has multiple evenly arranged liquid outlet holes along its length. Beneficial effects

[0014] 1. When using this invention, the operator moves the boat under the photovoltaic panel and only needs to operate the corresponding control lever to rotate the brush body to brush the photovoltaic panel, thereby cleaning the photovoltaic panel.

[0015] 2. By setting up a cleaning hydraulic outlet and a drive separator, the present invention can achieve a combination of various cleaning methods in conjunction with the rotating brush body, realizing multiple cleaning modes such as scraping, light cleaning and deep cleaning.

[0016] 3. This invention incorporates a rotating brush body, which is driven to rotate after use, allowing it to retract into the drive housing without affecting the use of the photovoltaic panel. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a right view of the present invention; Figure 3 This is the left view of the present invention; Figure 4 This is the front view of the present invention; Figure 5 This is one of the three-dimensional sectional views of the present invention; Figure 6 This is a second perspective sectional view of the present invention; Figure 7 This is the third perspective sectional view of the present invention; Figure 8 for Figure 1 Enlarged view of part A; Figure 9 for Figure 2 Enlarged view of part B; Figure 10 for Figure 2 Enlarged view of part C; Figure 11 for Figure 3 Enlarged view of part D; Figure 12 for Figure 4 Enlarged view of part E; Figure 13 for Figure 4 Enlarged view of part F; Figure 14 for Figure 5 Enlarged view of part G; Figure 15 for Figure 6 Enlarged view of the H section; Figure 16 for Figure 7 Enlarged view of part K; The components include: 1. Photovoltaic panel; 2. Channel steel frame; 3. Drive housing; 4. Support frame; 5. Drive separator; 6. Rotating brush body; 7. Brush driver; 8. Cleaning hydraulic outlet; 9. Limiting device; 10. Transmission box; 11. Cleaning liquid tank; 5.1. Slide box; 5.2. Rack plate; 5.3. Fixing sleeve; 5.4. Outer ring sleeve; 5.5. Separating main bevel gear sleeve; 5.6. Screw sleeve; 5.7. Screw; 5.8. Separating transmission secondary bevel gear; 5.9. Outer plate; 5.10. Separating operating lever; 6.1. Brush bristles; 6.2. Brush shaft; 6.3. Liquid box; 6.4. Liquid outlet; 6.5. Transmission gear; 6.6. Support; 6.7. Support shaft; 6.8. Connecting box; 6.9. End plate; 6.10. Drive gear; 6.11. Rotating main bevel gear 6.12 Rotating secondary bevel gear; 6.13 Rotating operating lever; 6.14 Conical end face; 6.15 Annular groove; 6.16 Arc-shaped sliding hole; 6.17 Column; 7.1 Drive operating lever; 7.2 Reciprocating screw; 7.3 Drive main bevel gear; 7.4 Drive secondary bevel gear; 7.5 Drive seat; 7.6 Protrusion; 7.7 Slide table; 8.1 Discharge operating lever; 8.2 Discharge hose; 8.3 Delivery pipe; 8.4 Pressure cylinder; 8.5 One-way diaphragm valve; 8.6 Upper piston; 8.7 Lower piston; 8.8 Piston rod; 8.9 Discharge connecting rod; 8.10 Movable sleeve; 8.11 Rod seat; 9.1 Limit operating lever; 9.2 Spring; 9.3 Support rod; 9.4 Trapezoidal locking block; 10.1 Rib plate. Detailed Implementation

[0018] Reference Figures 1-16 A photovoltaic panel cleaning device comprises a drive housing 3, a brush driver 7, a rotating brush body 6, a cleaning hydraulic outlet 8, and a drive separator 5. The rotating brush body is fixed on the brush driver, and the brush driver is connected to the drive housing for the reciprocating motion of the rotating brush body. The cleaning hydraulic outlet is fixed inside the drive housing, and the outlet of the cleaning hydraulic outlet is connected to the outlet hose 8.2. The outlet hose is connected to the liquid box 6.3 of the rotating brush body. The liquid outlet hose is a long hose, which provides sufficient length for one cycle of the reciprocating motion of the rotating brush body; The drive separator is slidably connected to the drive housing and is used to start and stop the self-rotation cleaning of the rotating brush body.

[0019] The drive housing sidewall is also connected to a limit stop 9 for limiting the reciprocating motion of the rotating brush body.

[0020] When in use, the brush body can be rotated out of the drive box by operating the rotating brush body. Then, the cleaning hydraulic discharger is operated with one hand to discharge the cleaning fluid. The cleaning fluid enters the liquid box through the discharge hose and flows out through the discharge hole 6.4 on the liquid box. The brush driver is driven with the other hand to make it rotate so that the brush body can reciprocate to clean the photovoltaic panel.

[0021] The brush driver includes a drive seat 7.5 fixed inside the drive housing. The drive seat is a U-shaped seat, and its fixed direction is consistent with the tilt angle of the photovoltaic panel 1. The drive seat is connected to a reciprocating screw 7.2 via a bearing. A slide 7.7 is connected to the reciprocating screw and engages with it. The slide is an integral square platform with two semi-circular grooves at its bottom. The bottom of the drive seat has two semi-circular protrusions 7.6 located within the semi-circular grooves of the slide, allowing the slide to slide and engage with the drive seat. One end of the reciprocating screw protrudes through the drive housing and is fixed to the drive main bevel gear 7.3. A transmission box 10 is fixed to the side wall of the drive housing. The transmission box is connected to a drive operating rod 7.1 via a bearing. A drive secondary bevel gear 7.4 is fixed to the end of the drive operating rod and meshes with the drive main bevel gear.

[0022] When it is necessary to operate the reciprocating motion of the rotating brush body, hold the drive lever and rotate the drive lever to drive the secondary bevel gear to rotate. The drive secondary bevel gear meshes with the drive main bevel gear, thereby driving the reciprocating screw to rotate. The reciprocating screw cooperates with the slide table, so that the slide table can slide back and forth. The rotating brush body is fixed on the slide table, thereby driving the reciprocating motion of the rotating brush body to achieve the reciprocating brushing of the photovoltaic panel. The cleaning hydraulic pump includes a hydraulic cylinder 8.4, which is a hollow cylindrical cylinder with a conical top. The hydraulic cylinder is connected to the cleaning fluid tank 11 via a delivery pipe 8.3, which is a rigid PPR pipe. The bottom of the delivery pipe is inserted into the interior of the cleaning fluid tank near the bottom. The hydraulic cylinder is a hollow cylindrical cylinder with an upper piston 8.6 and a lower piston 8.7 connected inside. Both the upper and lower pistons are annular plug structures. One-way diaphragm valves 8.5 are connected inside both the upper and lower pistons. The upper piston is fixed inside the hydraulic cylinder and is also fixed to a piston rod 8.8. The top of the piston rod is connected to a reciprocating pressing connecting rod.

[0023] The reciprocating connecting rod is driven to push the piston rod up and down. The one-way diaphragm valves on the upper and lower pistons can only open upwards. When the piston rod moves upwards, the one-way diaphragm valve on the upper piston closes, and the one-way diaphragm valve on the lower piston opens. This upward movement of the upper piston draws the cleaning fluid from the tank through the delivery pipe. Then, the piston rod moves downwards, opening the one-way diaphragm valve on the upper piston and closing the one-way diaphragm valve on the lower piston, thus expelling the air trapped between the upper and lower pistons. This reciprocating motion gradually draws the cleaning fluid from the tank until it is drawn into the pressure cylinder. Then, the piston rod moves upwards again, opening the one-way diaphragm valve on the lower piston. The one-way diaphragm valve inside the piston closes, allowing the cleaning fluid to enter between the upper and lower pistons. Then, the piston rod moves downward, opening the one-way diaphragm valve inside the upper piston and closing the one-way diaphragm valve inside the lower piston. This allows the cleaning fluid between the upper and lower pistons to flow out through the one-way diaphragm valve inside the upper piston to the top of the upper piston. The piston rod moves upward, closing the one-way diaphragm valve inside the upper piston and opening the one-way diaphragm valve inside the lower piston, continuing to draw the cleaning fluid between the upper and lower pistons. Simultaneously, the cleaning fluid located above the upper piston is pushed out through the outlet by the upper piston as the piston rod moves upward. It then enters the liquid box through the outlet hose and flows out onto the photovoltaic panel through multiple outlet holes on the liquid box. The rotating brush body includes a support 6.6, which is connected to the brush shaft 6.2 via a bearing. The brush shaft is a cylindrical shaft with brushes 6.1 evenly distributed on it. A drive gear 6.10 is fixed on the brush shaft, and the drive gear meshes with a transmission gear 6.5. The gear shaft of the transmission gear is connected to the support via a bearing. The entire rotating brush body and brush driver are set at the same tilt angle as the photovoltaic panel. A support shaft 6.7 is fixed at the bottom of the support, and the support shaft passes through the top of the connecting box and is connected to the top of the connecting box via a bearing. The connecting box is fixed to the top of the slide table. The support shaft meshes with the rotating main bevel gear 6.11. A rotating operating rod 6.13 is rotatably connected inside the connecting box. A rotating secondary bevel gear 6.12 is fixed to the end of the rotating operating rod, and the rotating bevel gear meshes with the rotating secondary bevel gear.

[0024] A liquid box 6.3 is also fixed on the support. The liquid box is set parallel to the brush shaft and extends to the other end of the brush shaft and is fixed to the end plate 6.9. The end of the brush shaft is connected to the end plate through a bearing. In this way, the liquid box, the end plate and the support can jointly support the brush shaft. Multiple liquid outlet holes 6.4 are evenly distributed along the length of the front end face of the liquid box. The cleaning liquid flowing into the liquid box will flow out to the photovoltaic panel through the liquid outlet holes. The rotating brush body drives its own rotation. This rotation is for the recycling of the device after cleaning and for rotation when cleaning is needed. For example, when cleaning is required, the rotating brush body is recycled into the drive box, which does not affect the use of the photovoltaic panel. By manually rotating the operating lever, the rotating secondary bevel gear of the operating lever meshes with the rotating main bevel gear, thereby driving the rotating main bevel gear to rotate, realizing the rotation of the support shaft, which in turn drives the support and the brush shaft to rotate, rotating the brush shaft out of the drive box. There is an arc-shaped sliding hole 6.16 on the bottom disc of the support, and a column 6.17 on the top of the box. The column is inserted into the arc-shaped sliding hole. When the brush shaft is in the drive box, the column is at one end of the arc-shaped sliding hole. When the brush shaft rotates out of the drive box and rotates 90° to the cleaning position of the photovoltaic panel, the support rotates, so that its column is at the other end of the arc-shaped sliding hole. Through the cooperation of this arc-shaped sliding hole and the column, the rotation position of the brush shaft can be limited to ensure that it can rotate to the set position.

[0025] The limiting clamp includes a support rod 9.3 slidably connected within the transmission box 10. A spring 9.2 is fitted onto the support rod. The support rod is T-shaped, with the upper end of the spring fixed to the top of the support rod and the lower end fixed to the rib plate 10.1 in the middle of the transmission box. A trapezoidal locking block 9.4 is fixed to the bottom of the support rod. One side of the trapezoidal locking block is fixed to the limiting operating rod 9.1. The limiting operating rod is vertically positioned, with its bottom extending through the transmission box. The rotating operating rod extends through the drive housing. The rotating operating rod has an annular groove 6.15, and the trapezoidal locking block is engaged within this groove. Figure 10As shown, the end of the rotating operating lever has a tapered end face of 6.14, and the cross-section of the annular groove is trapezoidal, with the left side being vertical and the right side being inclined. The taper of the tapered end face of the rotating operating lever is the same as the taper of the inclined surface of the annular groove. Simultaneously, the trapezoidal block is also trapezoidal, with the left side being vertical and the right side having the same taper as the inclined surface of the annular groove. This limiting device serves as a limit for the initial position of the rotating brush body and for a reciprocating position. In the initial position, the trapezoidal block is within the annular groove. Because the rotating operating lever is set with an annular groove, it does not affect the rotation operation of the rotating operating lever when the brush shaft needs to be rotated to the cleaning position. When cleaning the photovoltaic panel is required after the brush shaft has rotated to the cleaning position, one hand holds the limiting operating lever and lifts it up. At this time, the trapezoidal block disengages from the annular groove. Then, the other hand rotates the drive operating lever, causing it to drive the secondary bevel gear to rotate. The secondary bevel gear meshes with the main bevel gear, thereby driving the reciprocating screw to rotate. The reciprocating screw works in conjunction with the slide table, allowing the slide table to slide back and forth. The rotating brush body is fixed on the slide table, thus driving the reciprocating motion of the rotating brush body. At this time, the trapezoidal locking block should be kept raised. After the rotating brush body moves for a few seconds, the trapezoidal locking block is released. At this time, the trapezoidal locking block will return to its original position under the action of the spring. When the rotating brush body has completed one reciprocating motion and is about to return to the initial position, the rotating operating rod will pass out of the drive box through the opening on the drive box and then move into the transmission box. When it moves to the point where the conical end face contacts the trapezoidal locking block, it will contact the inclined surface of the trapezoidal locking block and push the trapezoidal locking block upward. Then the rotating operating rod continues to slide to the left until the annular locking groove moves to the position of the trapezoidal locking block. The trapezoidal locking block is inserted into the annular locking groove under the action of the spring. At this time, the rotating brush body completes one reciprocating motion and returns to the initial position, indicating that one reciprocating cleaning action has been completed. When another reciprocating cleaning action is needed, the above operation can be repeated.

[0026] The drive separator includes a rack plate 5.2, which meshes with the transmission gear and is slidably connected to the side of the drive housing. A separation operation component for driving the rack plate is connected to the drive housing.

[0027] The rack plate can be slidable by driving the separation operation component. The two sides of the drive housing are fixed with slide boxes 5.1. The two ends of the rack plate are located in the slide boxes. The slide boxes are hollow box structures, which can limit the two positions of the rack plate movement, namely the engagement position and the disengagement position. The drive separator allows the brush to be engaged and disengaged from the transmission gear. When engaged, the rack engages with the transmission gear during the reciprocating motion of the rotating brush body, causing the rack to rotate. Since the transmission gear meshes with the drive gear, it drives the drive gear to rotate. The drive gear is fixed on the brush shaft, causing the brush shaft to rotate as well. Because the tooth ratio of the transmission gear to the drive gear is 2:1, the brush shaft can rotate rapidly, achieving brushing cleaning during reciprocating motion. When disengaged, the brush shaft does not rotate, achieving scraping cleaning. The separation operation assembly includes a screw 5.7 fixed on a rack plate, which passes through a circular hole in the side wall of the drive housing. A fixing sleeve 5.3 is fixed on the drive housing. The fixing sleeve is an annular sleeve. The outer ring sleeve 5.4 is connected to the outer ring sleeve 5.5 by a bearing. The outer ring sleeve is fixed to the separation main bevel gear sleeve 5.5. A threaded sleeve 5.6 is fixed inside the separation main bevel gear sleeve. The threaded sleeve is fitted on the screw and threadedly connected to the screw. An outer plate 5.9 is fixed on the side of the drive housing. The outer plate is connected to the separation operation rod by a bearing. A separation transmission pair bevel gear 5.8 is fixed at the end of the separation operation rod. The separation transmission pair bevel gear meshes with the separation main bevel gear sleeve. Initially, the rack plate is engaged with the transmission gear. When separation is required, rotate the separation lever to rotate the main bevel gear sleeve, which in turn rotates the screw sleeve. The screw sleeve is threadedly connected to the screw rod, thereby adjusting the sliding of the rack plate to achieve separation from the transmission gear.

[0028] The reciprocating pressing linkage includes a pressing operation rod 8.1 rotatably connected to the side wall of the drive housing. A pressing connecting rod 8.9 is fixed to the end of the pressing operation rod. A rod seat 8.11 is fixed to the top of the piston rod. The rod seat is rotatably connected to a movable sleeve 8.10. The pressing connecting rod is inserted into the movable sleeve.

[0029] When cleaning hydraulic action is required, the operator rotates the pressing operation lever from below. When the pressing operation lever rotates clockwise by a certain angle, the pressing connecting rod rotates. The pressing connecting rod slides with the movable sleeve, and the movable sleeve is fixed with a support shaft. The support shaft is rotatably connected to the rod seat. When the pressing connecting rod rotates clockwise by a certain angle, it will drive the piston rod to move downward. When the pressing operation lever rotates counterclockwise, it will drive the piston rod to move upward.

[0030] The drive housing is fixed to the support frame, and the support frame is fixed to the channel steel frame by bolts.

[0031] The liquid box is a square hollow box, and multiple evenly arranged liquid outlet holes are opened in the front length direction of the liquid box.

[0032] Working principle: This device has four cleaning modes: dust scraping, liquid spraying, rotating cleaning, and rotating liquid spraying cleaning. When dust removal is required, the drive separation component separates the rack plate from the transmission gear. The transmission gear does not rotate, and the brush shaft does not rotate. One hand operates the limit control lever to disengage the rotation control lever from the limit state. While maintaining this disengaged state, the other hand rotates the drive control lever to drive the rotating brush body to reciprocate. After the rotating brush body has moved for 10 seconds, the rotation control lever has moved into the drive housing. At this point, the limit control lever is released, and the drive control lever is continued to make the rotating brush body reciprocate. During the reciprocating motion of the rotating brush body, the bristles on the brush shaft will scrape off the dust and debris on the photovoltaic panel, achieving dust removal. After one reciprocating motion, the rotating brush body will re-enter the limit state through the limit card. At this point, the operation of the brush driver is stopped. When stubborn dust requires cleaning solution immersion, spray the solution first, then rotate the brush to separate the rack and pinion from the transmission gear. At this point, the limit switch disengages. Operate the drive lever to reciprocate the rotating brush body. After 10 seconds of this motion, the drive lever should be inside the drive housing. Release the limit lever and stop operating the drive lever. Keep the brush body stationary. With one hand, operate the push-out lever to gradually push out the cleaning solution until it flows through the liquid box onto the photovoltaic panel. Continue operating the push-out lever with one hand and the drive lever with the other to allow the cleaning solution to flow onto the photovoltaic panel during the reciprocating motion of the rotating brush body, ensuring the entire photovoltaic panel is covered. After applying the cleaning solution, the device moves back and forth once and then pauses for a few seconds to allow the cleaning solution to soak the photovoltaic panel. Then, the separation operation component is activated, engaging the rack and pinion plate with the transmission gear. Next, the limit switch is disengaged. The same operation of the drive lever is repeated to rotate the brush body in a reciprocating motion. After 10 seconds of this motion, the drive lever has moved into the drive housing. The limit switch is then released, and the drive lever is operated again to continue the reciprocating motion of the brush body. During this motion, the rack and pinion plate engage with the transmission gear, causing it to rotate. The transmission gear then engages with the drive gear, causing the brush shaft to rotate. This reciprocating motion, with the brush shaft rotating, cleans the photovoltaic panel. The brush body completes one reciprocating motion and then stops. When the debris on the photovoltaic panel is stubborn and requires a combination of spray cleaning and rotary spray cleaning, drive the separator to separate the rack plate from the transmission gear. At this time, the drive limit switch disengages. Operate the drive lever to drive the rotating brush body in a reciprocating motion. After the rotating brush body has moved for 10 seconds, the drive lever will have moved into the drive housing. Release the limit lever and stop operating the drive lever. Keep the rotating brush body stationary. Operate the push-out lever with one hand to gradually push out the cleaning fluid until it flows through the liquid box onto the photovoltaic panel. Then continue operating the push-out lever with one hand and the drive lever with the other to keep the rotating brush body in a reciprocating motion. The cleaning fluid flows onto the photovoltaic panel, covering the entire panel. After one reciprocating motion and a few seconds of stillness, the cleaning fluid soaks into the panel. Then, the separation operation component is activated, engaging the rack and pinion gears. Next, the limit switch is disengaged. The drive lever is operated to rotate the brush body in a reciprocating motion. After 10 seconds of this motion, the drive lever is moved into the drive housing. The limit lever is then released. One hand operates the push-out lever, while the other operates the drive lever. This allows the cleaning fluid to flow out during the reciprocating motion of the brush body. Simultaneously, the rack and pinion gears are engaged, causing the brush shaft to rotate and spray cleaning fluid.

Claims

1. A photovoltaic panel cleaning device, characterized in that: Its components include a drive housing, a brush driver, a rotating brush body, a cleaning hydraulic outlet, and a drive separator; The rotating brush body is fixed on the brush driver, and the brush driver is connected to the drive housing for the reciprocating motion of the rotating brush body. The cleaning hydraulic outlet is fixed in the drive housing, and the outlet of the cleaning hydraulic outlet is connected to the outlet hose, which is connected to the liquid box of the rotating brush body. The drive separator is slidably connected to the drive housing and is used to start and stop the self-rotation cleaning of the rotating brush body.

2. The photovoltaic panel cleaning device according to claim 1, characterized in that: The drive housing sidewall is also connected to a limit stop for limiting the reciprocating motion of the rotating brush body.

3. The photovoltaic panel cleaning device according to claim 2, characterized in that: The brush driver includes a drive seat fixed inside the drive housing. A reciprocating lead screw is connected to the drive seat via a bearing. A slide is connected to the reciprocating lead screw, and the slide is slidably engaged with the drive seat. One end of the reciprocating lead screw extends out and is fixed to the drive housing and the main drive bevel gear. A transmission box is fixed to the side wall of the drive housing. A drive operating rod is connected to the transmission box via a bearing. A drive secondary bevel gear is fixed to the end of the drive operating rod, and the drive secondary bevel gear meshes with the main drive bevel gear.

4. A photovoltaic panel cleaning device according to claim 3, characterized in that: The cleaning hydraulic pump includes a hydraulic cylinder, which is connected to the cleaning fluid tank via a delivery pipe. The hydraulic cylinder is a hollow cylindrical tube with an upper piston and a lower piston connected inside. Both the upper and lower pistons are connected to a one-way diaphragm valve. The upper piston is fixed inside the hydraulic cylinder and is also fixed to a piston rod. The top of the piston rod is connected to a reciprocating pressure connecting rod.

5. A photovoltaic panel cleaning device according to claim 4, characterized in that: The rotating brush body includes a support, which is connected to the brush shaft via a bearing. A drive gear is fixed on the brush shaft and meshes with a transmission gear. A support shaft is fixed at the bottom of the support and passes through the top of the connecting box, meshing with a rotating main bevel gear. A rotating operating rod is rotatably connected inside the connecting box, and a rotating secondary bevel gear is fixed at the end of the rotating operating rod, meshing with the rotating secondary bevel gear.

6. A photovoltaic panel cleaning device according to claim 5, characterized in that: The limiting clamp includes a support rod slidably connected to the transmission box, a spring sleeved on the support rod, a trapezoidal locking block fixed at the bottom of the support rod, one side of the trapezoidal locking block being fixed to a limiting operating rod, a rotating operating rod extending out of the drive box, the rotating operating rod having an annular groove, and the trapezoidal locking block being engaged in the annular groove of the rotating operating rod.

7. A photovoltaic panel cleaning device according to claim 6, characterized in that: The drive separator includes a rack plate that meshes with the transmission gear and is slidably connected to the side of the drive housing. A separation operation component for driving the rack plate is connected to the drive housing.

8. A photovoltaic panel cleaning device according to claim 7, characterized in that: The reciprocating pressing linkage includes a pressing operation rod rotatably connected to the side wall of the drive housing. A pressing connecting rod is fixed to the end of the pressing operation rod. A rod seat is fixed to the top of the piston rod. The rod seat is rotatably connected to a movable sleeve. The pressing connecting rod is inserted into the movable sleeve.

9. A photovoltaic panel cleaning device according to claim 8, characterized in that: The drive housing is fixed to the support frame, and the support frame is fixed to the channel steel frame by bolts.

10. A photovoltaic panel cleaning device according to claim 9, characterized in that: The liquid box is a square hollow box, and multiple evenly arranged liquid outlet holes are opened in the front length direction of the liquid box.