Automatic cleaning mechanism for surface of photovoltaic power generation panel

Abstract

The invention relates to the technical field of photovoltaic power generation panels, in particular to a photovoltaic power generation panel surface automatic cleaning mechanism which comprises a photovoltaic panel body, a support, a rectangular frame, an attaching plate, a displacement block, a scraping rubber strip, a rolling brush, a bearing frame and a liquid drainage unit. According to the invention, the following problems existing in the cleaning process of the photovoltaic power generation panel in the prior art can be solved: solidified dirt and bird droppings cannot be effectively removed, and the residual dirt and bird droppings are easy to influence the irradiation intensity of the photovoltaic panel; dust on the surface of the brush roller is difficult to remove, so that the cleaning effect on the photovoltaic panel is influenced by residual impurities on the surface of the brush roller; a cleaning agent is discharged to the upper end of the photovoltaic panel body to infiltrate and soften dirt, and then the dirt at the upper end of the photovoltaic panel body is removed through a scraping rubber strip and a rolling brush, so that automatic cleaning of the photovoltaic panel body is completed, and the softened dirt is easier to remove; according to the invention, the scraping adhesive tape and the rolling brush can be cleaned, and the residual dirt is prevented from influencing the cleaning effect on the photovoltaic panel body.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic panels, and in particular to an automatic cleaning mechanism for the surface of a photovoltaic panel. Background Art

[0002] Photovoltaic panels are devices that convert sunlight into electrical energy. They are usually composed of multiple solar panels. Solar panels directly convert light energy into electrical energy through the photoelectric effect or the photochemical effect. Since photovoltaic panels are usually placed under the sun to work, dust is easily attached to the panels. In rainy weather, rain stains are easily left on the panels. When dust is mixed with the water stains, it will form dirt that can block the sunlight. When birds fly over photovoltaic panels, they are prone to produce bird droppings and fall on the upper part of the photovoltaic panels. Therefore, floating dust, dirt and bird droppings can easily affect the light intensity of the photovoltaic panels. Therefore, photovoltaic panels need to be cleaned regularly to ensure their effectiveness.

[0003] However, there are usually some problems when cleaning photovoltaic panels. With the development of science and technology, technicians in related fields have also made a lot of optimizations on the cleaning of photovoltaic panels. In order to make a more accurate comparison, a Chinese patent with publication number CN118473316A discloses a photovoltaic panel cleaning mechanism, including a base plate and a cross beam, a bracket and a photovoltaic panel are fixedly installed on the surface of the base plate, one side of the bracket is connected to the cross plate through a driving assembly, the driving assembly includes a motor, a rotating shaft is connected to the output end of the motor, a brush roller is rotatably connected to the middle of the cross plate, and linkage assemblies are provided at both ends of the brush roller, the linkage assembly includes a small gear and a large gear that are meshed with each other, the small gear is fixedly connected to the two ends of the brush roller, the large gear is rotatably connected to the inside of the support, the guide rails are symmetrically distributed on both sides of the brush roller, and the rails are meshed with the large gear; a flushing assembly is fixedly installed on the top of the cross beam.

[0004] When the above-mentioned prior art is in use, the motor drives the rotating shaft and the sleeve to rotate synchronously, and the large gear is driven to move on the surface of the guide rail by controlling the cross plate, so that the rotation of the large gear drives the small gear to rotate, and then drives the brush roller to rotate to clean the surface of the photovoltaic panel. When the brush roller moves to the bottom of the cross beam, the brush roller is cleaned by the flushing assembly, and then the brush roller continues to move to the surface of the photovoltaic panel with the guide rail to achieve an efficient cleaning function.

[0005] However, there are still some shortcomings in the above-mentioned prior art in the process of cleaning photovoltaic panels: 1. The above-mentioned prior art can only remove the dust on the surface through the brush roller, but the dirt and bird droppings are solidified and adhered to the upper end of the photovoltaic panel. Therefore, the solidified dirt and bird droppings cannot be effectively removed by the brush roller alone, thereby affecting the cleaning effect of the photovoltaic panel. The residual dirt and bird droppings are likely to affect the irradiation intensity and power generation efficiency of the photovoltaic panel.

[0006] 2. In addition, it is difficult to completely remove the dust on the surface of the brush roller by flushing in the above-mentioned prior art, and the brush roller is in a wet state after being dipped in water, which is easy to absorb dust, resulting in residual impurities on the surface of the brush roller. When the brush roller is used again, not only can the dust on the surface of the photovoltaic panel not be removed, but the impurities on the brush roller are also easily smeared on the photovoltaic panel, further affecting the cleaning effect of the photovoltaic panel.

[0007] Therefore, based on the above-stated viewpoints, there is still room for improvement in existing photovoltaic panel cleaning methods. Summary of the invention

[0008] In order to solve the above problems, the present invention provides an automatic cleaning mechanism for the surface of a photovoltaic panel, including a photovoltaic panel body, a bracket is arranged at the lower end of the photovoltaic panel body, the outer wall of the photovoltaic panel body has a rectangular frame, and both side walls in the width direction of the rectangular frame are provided with bonding plates, and a sliding sleeve is provided on the bonding plate for displacement blocks sliding along its length direction, and baffles are installed at both ends of the bonding plate through support blocks.

[0009] Scraping rubber strips for scraping off dirt on the upper end of the photovoltaic panel body are arranged on the opposite sides of the two displacement blocks, and two roller brushes for secondary cleaning of the upper end of the photovoltaic panel body are arranged symmetrically along the width direction on the opposite sides of the two displacement blocks, and the roller brush is located between the two scraping rubber strips. A supporting frame is commonly installed on the upper ends of the two displacement blocks, and a drainage unit for further cleaning the upper end of the photovoltaic panel body is installed on the supporting frame. The drainage unit includes two water tanks respectively installed on the upper ends of the displacement blocks and a water storage chamber arranged on the upper end of the supporting frame, and the water storage chamber is communicated with the two water tanks.

[0010] As a preferred technical solution of the present invention, an auxiliary plate is provided on one side wall of the displacement block close to the lower side of the photovoltaic panel body, and a support rod is commonly provided on the opposite sides of the two auxiliary plates. A scraper rubber strip is provided on the outer wall of the support rod through a first torsion spring sleeve, and the end of the scraper rubber strip away from the support rod is the scraper side. The bottom of the scraper side is in sliding contact with the photovoltaic panel body, and the side of the scraper side away from the support rod gradually tilts downward.

[0011] As a preferred technical solution of the present invention, two connecting grooves are symmetrically opened inside the displacement block, which are respectively located on the upper and lower sides of the rectangular frame. A moving wheel is rotatably arranged in the connecting groove. The moving wheel rolls against the upper and lower sides of the rectangular frame. A transmission shaft is rotatably penetrated through the middle of the moving wheel. A driving motor is installed on the side of the displacement block away from the rectangular frame through a motor seat. The output shaft of the driving motor is connected to any one of the transmission shafts, and a linkage branch chain is arranged between the two transmission shafts on the same displacement block.

[0012] As a preferred technical solution of the present invention, the linkage branch chain includes a positioning shaft rotatably installed inside the displacement block and located between the two transmission shafts, the positioning shaft and the outer wall of one of the transmission shafts are both sleeved with mutually meshing transmission gears, a belt is jointly sleeved between the positioning shaft and the other transmission shaft, and a receiving groove for installing the positioning shaft, the transmission gear and the belt is opened inside the displacement block.

[0013] As a preferred technical solution of the present invention, connecting shafts are passed through the inside of the two roller brushes, and both ends of the connecting shafts are respectively rotated and passed through the inside of the displacement block, and the two connecting shafts are symmetrically distributed along the transmission shaft, and the two connecting shafts are connected to the transmission shaft on the lower side of the displacement block through belt drive.

[0014] As a preferred technical solution of the present invention, the drainage unit further includes a water pump, and a water pump is installed between the water storage chamber and the two water tanks, the water inlet end of the water pump extends into the water tank, and the water outlet end of the water pump extends into the water storage chamber; A plurality of drainage pipes connected to the water storage chamber are arranged equidistantly along the length direction on one side of the outer wall of the water storage chamber close to the scraper strip. One end of the drainage pipe away from the water storage chamber is located above the scraping side of the scraper strip and is equipped with a spray head. Top support bars for supporting the drainage pipes are installed on opposite sides of the two auxiliary plates. Cleaning branches for removing dirt from the surface of the roller brush are installed on the support frame and the bottom of the water storage chamber.

[0015] As a preferred technical solution of the present invention, the cleaning branch chain includes a fixing frame installed in the middle of the lower end of the supporting frame, and two arc-shaped cylinders are symmetrically arranged on both sides of the fixing frame along the width direction of the supporting frame, and the upper end of the arc-shaped cylinder is connected to the water storage chamber through a connecting cylinder; The two arc-shaped cylinders correspond to the positions of the two roller brushes respectively. A plurality of brush plates and liquid outlet cylinders which are equidistantly distributed are installed on one side of the arc-shaped cylinder close to the roller brush. The brush plates and the liquid outlet cylinders are staggeredly distributed.

[0016] As a preferred technical solution of the present invention, the supporting block of the bonding plate close to the lower side of the photovoltaic panel body is provided with installation grooves on the upper and lower sides, and each installation groove has two rotating shafts symmetrically rotating along the length direction, and the outer walls of the two rotating shafts in the same installation groove are jointly covered with an auxiliary belt.

[0017] As a preferred technical solution of the present invention, a ratchet is installed at the end of any one of the rotating shafts in each of the installation grooves, and the ratchet teeth of the ratchet wheels on the upper and lower sides have opposite rotation directions. The side wall of the support block on the lower side of the photovoltaic panel body is provided with a pawl which is rotated by a second torsion spring, and the pawl cooperates with the ratchet.

[0018] In summary, this application includes the following beneficial technical effects: 1. Before cleaning, the present invention discharges the cleaning agent to the upper end of the photovoltaic panel body through the discharge unit to soften the dirt and bird droppings, and then controls the displacement block to drive the scraper strip and the roller brush to move synchronously along the length direction of the bonding plate, and scrapes off the dirt on the upper end of the photovoltaic panel body through the scraper strip, and then removes the residual dirt and cleaning agent on the upper end of the photovoltaic panel body through the roller brush, thereby completing the automatic cleaning of the photovoltaic panel body, and the softened dirt is easier to remove, avoiding the presence of residues that affect the irradiation intensity of the photovoltaic panel body.

[0019] 2. The present invention drives the transmission shaft to rotate through a driving motor, and the transmission shaft drives another transmission shaft to rotate in the opposite direction through the mutual cooperation between the positioning shaft, the transmission gear and the belt. The two transmission shafts drive the moving wheels to roll relative to each other on the rectangular frame and drive the displacement block to move synchronously. The displacement block drives the scraper strip and the roller brush to move synchronously, so as to automatically clean the photovoltaic panel body. During this period, the roller brush rotates to the side away from its moving direction, so as to enhance the friction effect between the roller brush and the upper end of the photovoltaic panel body, so that the roller brush quickly wipes the upper end of the photovoltaic panel body, thereby enhancing the cleaning effect of the roller brush on the photovoltaic panel body.

[0020] 3. The present invention drives the scraper rubber strip and the roller brush to move to the support block on the lower side of the photovoltaic panel body through the displacement block. The moving wheels are respectively in contact with the auxiliary belts on the upper and lower sides of the support block and drive the rotating shaft to rotate through the auxiliary belts, thereby ensuring that the roller brush can be located on the lower side of the photovoltaic panel body and keep in a rotating state without moving. During this period, the cleaning agent in the arc cylinder drips onto the surface of the roller brush, and then the dirt on the surface of the roller brush is completely scraped off by the brush plate, thereby ensuring the cleanliness of the roller brush and preventing residual dirt from affecting the cleaning effect of the photovoltaic panel body.

[0021] 4. When the present invention drives the scraper strip to move to the lower side of the photovoltaic panel body through the displacement block, the scraper strip pushes the dirt on the photovoltaic panel body to the corner between it and the rectangular frame. At the same time, the support rod and the scraper strip are driven to rotate through the mutual cooperation between the rack and the arc-shaped tooth plate, so that the scraper strip scrapes off the dirt in the corner between the photovoltaic panel body and the rectangular frame, avoiding the dirt remaining on the photovoltaic panel body and affecting the light intensity and power generation efficiency.

[0022] 5. The present invention scrapes off the dirt remaining on the upper end of the scraper side through the scraper, and then sprays the cleaning agent in the water storage chamber through the drain pipe and the spray head onto the scraper strip and the scraper, so as to flush away the dirt on the scraper strip and the scraper, thereby ensuring the cleanliness of the scraper strip and avoiding the dirt remaining on the scraper strip from affecting its cleaning effect on the photovoltaic panel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 It is a schematic diagram of the structure among the photovoltaic panel body, the bonding plate, the displacement block, the scraper rubber strip and the roller brush of the present invention.

[0026] Figure 3 It is a first internal structure schematic diagram of the displacement block of the present invention.

[0027] Figure 4 It is a second internal structure schematic diagram of the displacement block of the present invention.

[0028] Figure 5 It is a schematic diagram of the structure among the displacement block, the scraper rubber strip, the roller brush and the liquid discharge unit of the present invention.

[0029] Figure 6 The present invention Figure 5 A partial enlarged view of point A.

[0030] Figure 7 It is a schematic diagram of the structure between the support block and the cleaning branch chain of the present invention.

[0031] Figure 8 The present invention Figure 7 A partial enlarged view of point B.

[0032] Fig. 9 It is a schematic diagram of the structure among the laminating plate, the displacement block and the auxiliary plate of the present invention.

[0033] Fig.10 The present invention Fig. 9 A partial enlarged view of point C.

[0034] Fig.11 The present invention Fig. 9 A partial enlarged view of point D.

[0035] Fig.12 It is a schematic diagram of the structure between the scraper rubber strip and the scraper of the present invention.

[0036] Fig.13 The present invention Fig.12 A partial enlarged view of point E.

[0037] In the figure, 1, photovoltaic panel body; 2, bracket; 3, rectangular frame; 4, bonding plate; 41, support block; 42, baffle; 5, displacement block; 51, auxiliary plate; 52, support rod; 53, moving wheel; 54, transmission shaft; 55, driving motor; 56, linkage branch chain; 561, positioning shaft; 562, transmission gear; 563, belt; 6, scraper strip; 7, roller brush; 71, connecting shaft; 8, support bracket; 9, drainage unit; 91, water tank; 92, water storage chamber; 93, water Pump; 94, drain pipe; 95, top support bar; 96, cleaning branch chain; 961, fixed frame; 962, arc cylinder; 963, connecting cylinder; 964, brush plate; 965, liquid discharge cylinder; 966, rotating shaft; 967, auxiliary belt; 968, ratchet; 969, pawl; 101, pad; 102, arc tooth plate; 103, strip slide; 104, rack; 105, positioning ring; 106, execution strip; 107, fixed block; 108, rotating rod; 109, scraper. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-Figure 13 Embodiments of the present invention are described in detail.

[0039] The embodiment of the present application discloses an automatic cleaning mechanism for the surface of a photovoltaic panel. It should be noted that the automatic cleaning mechanism for the surface of a photovoltaic panel of the present application is mainly used in the process of automatically cleaning the photovoltaic panel. In terms of technical effect, the cleaning agent can be first discharged to the upper end of the photovoltaic panel body 1 to infiltrate and soften the dirt and bird droppings, and then the displacement block 5 drives the scraper strip 6 and the roller brush 7 to move along the length direction of the bonding plate 4. The scraper strip 6 scrapes off the dirt on the upper end of the photovoltaic panel body 1. In this process, the residual dirt and cleaning agent on the upper end of the photovoltaic panel body 1 are removed by the roller brush 7. In this way, the automatic cleaning of the photovoltaic panel body 1 is completed; in particular, when the roller brush 7 cleans the photovoltaic panel body 1, it can rotate to the side away from its moving direction, so as to enhance the friction effect between it and the upper end of the photovoltaic panel body 1, so that it can quickly wipe the upper end of the photovoltaic panel body 1, thereby enhancing the cleaning effect of the roller brush 7 on the photovoltaic panel body 1; further, the automatic cleaning mechanism of the photovoltaic panel surface can also remove dirt on the scraper rubber strip 6 and the roller brush 7, thereby ensuring the cleanliness of the scraper rubber strip 6 and the roller brush 7, and preventing residual dirt from affecting the cleaning effect of the photovoltaic panel body 1.

[0040] Embodiment 1: Reference Figure 1 and Figure 2As shown, an automatic cleaning mechanism for the surface of a photovoltaic panel comprises a photovoltaic panel body 1, a bracket 2 is arranged at the lower end of the photovoltaic panel body 1, the outer wall of the photovoltaic panel body 1 has a rectangular frame 3, both side walls of the rectangular frame 3 in the width direction are provided with bonding plates 4, a displacement block 5 sliding along the length direction thereof is slidably sleeved on the bonding plate 4, and baffles 42 are installed at both ends of the bonding plate 4 through support blocks 41.

[0041] Furthermore, in this embodiment, scraper strips 6 for scraping off dirt on the upper end of the photovoltaic panel body 1 are provided on opposite sides of the two displacement blocks 5, and two roller brushes 7 for secondary cleaning of the upper end of the photovoltaic panel body 1 are provided on opposite sides of the two displacement blocks 5 so as to rotate symmetrically along the width direction. The roller brush 7 is located between the two scraper strips 6, and a supporting frame 8 is commonly installed on the upper ends of the two displacement blocks 5. A drainage unit 9 for further cleaning the upper end of the photovoltaic panel body 1 is installed on the supporting frame 8. The drainage unit 9 includes two water tanks 91 respectively installed on the upper ends of the displacement blocks 5 and a water storage chamber 92 arranged on the upper end of the supporting frame 8, and the water storage chamber 92 is communicated with the two water tanks 91.

[0042] It should be noted that an auxiliary plate 51 is provided on one side wall of the displacement block 5 close to the lower side of the photovoltaic panel body 1, and a support rod 52 is commonly provided on the opposite sides of the two auxiliary plates 51. A scraper rubber strip 6 is provided on the outer wall of the support rod 52 through a first torsion spring sleeve, and the end of the scraper rubber strip 6 away from the support rod 52 is the scraper side, and the bottom of the scraper side is in sliding contact with the photovoltaic panel body 1, and the side of the scraper side away from the support rod 52 gradually tilts downward to facilitate scraping off dirt on the upper end of the photovoltaic panel body 1; the first torsion spring always applies a downward rotating torsional force to the scraper rubber strip 6, so that the bottom of the scraper side of the scraper rubber strip 6 is always in contact with the upper end of the photovoltaic panel body 1, and when the displacement block 5 drives the scraper rubber strip 6 to move, the softened dirt on the upper end of the photovoltaic panel body 1 can be scraped off through the scraper rubber strip 6; and the scraper rubber strip 6 is made of rubber to avoid scratching the upper end of the photovoltaic panel body 1.

[0043] In the initial state, the displacement block 5 drives the scraper strip 6, the roller brush 7, the support bracket 8 and the drainage unit 9 to be located at the support block 41 on the upper side of the rectangular frame 3 to avoid blocking the illumination area of ​​the photovoltaic panel body 1. The baffle 42 can limit the movement range of the displacement block 5 to prevent the displacement block 5 from falling off the bonding plate 4.

[0044] During the specific implementation process, the bonding plate 4 is first installed on the two side walls of the rectangular frame 3, and then the displacement block 5 together with the scraper strip 6, the roller brush 7, the support bracket 8 and the drainage unit 9 are slid and installed on the bonding plate 4 as a whole. When the upper end of the photovoltaic panel body 1 needs to be cleaned, the cleaning agent is first discharged to the upper end of the photovoltaic panel body 1 through the drainage unit 9, so that the cleaning agent can soak and soften the dirt and bird droppings on the upper end. Then, the displacement block 5 drives the scraper strip 6 and the roller brush 7 to move synchronously along the length direction of the bonding plate 4. During this period, the dirt on the upper end of the photovoltaic panel body 1 is scraped off by the scraper strip 6, and then the residual dirt and cleaning agent on the upper end of the photovoltaic panel body 1 are removed by the roller brush 7, thereby completing the automatic cleaning of the photovoltaic panel body 1, and the dirt is easier to remove after being softened, thereby avoiding the presence of residues that affect the irradiation intensity of the photovoltaic panel body 1.

[0045] Reference Figure 3 and Figure 4 As shown, in order to facilitate the automatic cleaning of the photovoltaic panel body 1, the displacement block 5 needs to be automatically moved along the length direction of the bonding plate 4. Based on this, in the present embodiment, two connecting grooves are symmetrically opened inside the displacement block 5, which are respectively located on the upper and lower sides of the rectangular frame 3. A moving wheel 53 is rotatably arranged in the connecting groove. The moving wheel 53 rolls against the upper and lower sides of the rectangular frame 3. A transmission shaft 54 ​​is rotatably penetrated in the middle of the moving wheel 53. A driving motor 55 is installed on the side of the displacement block 5 away from the rectangular frame 3 through a motor seat. The output shaft of the driving motor 55 is connected to any one of the transmission shafts 54, and a linkage branch chain 56 is arranged between the two transmission shafts 54 on the same displacement block 5.

[0046] Furthermore, in this embodiment, the linkage branch chain 56 includes a positioning shaft 561 rotatably installed inside the displacement block 5 and located between the two transmission shafts 54, the positioning shaft 561 and the outer wall of one of the transmission shafts 54 are both provided with mutually meshing transmission gears 562, a belt 563 is commonly provided between the positioning shaft 561 and the other transmission shaft 54, and a receiving groove for installing the positioning shaft 561, the transmission gear 562 and the belt 563 is provided inside the displacement block 5; the transmission gear 562 can make the positioning shaft 561 and the transmission shaft 54 ​​provided with the transmission gear 562 rotate synchronously, and the two rotation directions are opposite, at the same time, the positioning shaft 561 rotates in the same direction as the other transmission shaft 54 ​​through the belt 563, so as to control the upper and lower transmission shafts 54 to rotate in opposite directions.

[0047] In the specific implementation process, after the drainage unit 9 discharges the cleaning agent to the upper end of the photovoltaic panel body 1 to soak and soften the dirt and bird droppings, the driving motor 55 is started, and the driving motor 55 drives the transmission shaft 54 ​​to rotate. The transmission shaft 54 ​​drives the other transmission shaft 54 ​​to rotate in the opposite direction through the mutual cooperation between the positioning shaft 561, the transmission gear 562 and the belt 563. The transmission shaft 54 ​​drives the moving wheel 53 to rotate synchronously, so that the two moving wheels 53 roll relative to each other on the rectangular frame 3 and drive the displacement block 5 to move synchronously. The displacement block 5 drives the scraper strip 6 and the roller brush 7 to move synchronously, so as to automatically scrape off the dirt on the upper end of the photovoltaic panel body 1; during the cleaning process of the photovoltaic panel body 1, the moving wheel 53 drives the displacement block 5 to move from the upper side of the photovoltaic panel body 1 to its lower side, so as to achieve comprehensive cleaning of the photovoltaic panel body 1, and then the driving motor 55 drives the transmission shaft 54 ​​to rotate in the opposite direction, so that the two moving wheels 53 rotate in the opposite direction and drive the displacement block 5, the scraper strip 6 and the roller brush 7 as a whole to move from the lower side of the photovoltaic panel body 1 to the upper side to reset.

[0048] Continue to refer to Figure 4 As shown, in order to facilitate enhancing the cleaning effect of the roller brush 7 on the photovoltaic panel body 1, in this embodiment, the displacement block 5 can drive the roller brush 7 to rotate when it moves back and forth along the bonding plate 4. Based on this, in this embodiment, the two roller brushes 7 are fixedly penetrated by connecting shafts 71, and the two ends of the connecting shafts 71 are respectively rotatably penetrated into the displacement block 5, and the two connecting shafts 71 are symmetrically distributed along the transmission shaft 54, and the two connecting shafts 71 are connected to the transmission shaft 54 ​​on the lower side of the displacement block 5 through belt transmission.

[0049] In the specific implementation process, when the displacement block 5 moves to the lower side of the rectangular frame 3, the transmission shaft 54 ​​on the lower side of the displacement block 5 drives the two roller brushes 7 to rotate clockwise through the connecting shaft 71, and at this time, the transmission shaft 54 ​​on the upper side of the displacement block 5 rotates counterclockwise (in Figure 4 As shown in the figure); the roller brush 7 moves with the displacement block 5 and rotates toward the side away from its moving direction, thereby enhancing the friction effect between the roller brush 7 and the upper end of the photovoltaic panel body 1, so that the roller brush 7 quickly wipes the upper end of the photovoltaic panel body 1, thereby enhancing the cleaning effect of the roller brush 7 on the photovoltaic panel body 1.

[0050] Reference Figure 5 As shown, in order to ensure that the dirt and bird droppings on the upper end of the photovoltaic panel body 1 are completely removed, in this embodiment, the cleaning agent can be discharged at the upper end of the photovoltaic panel body 1 before cleaning, so that the cleaning agent can infiltrate and soften the dirt on the upper end of the photovoltaic panel body 1. Based on this, in this embodiment, the drainage unit 9 also includes a water pump 93, and a water pump 93 is installed between the water storage chamber 92 and the two water tanks 91. The water inlet end of the water pump 93 extends to the inside of the water tank 91, and the water outlet end of the water pump 93 extends to the water storage chamber 92; a liquid inlet one-way valve is provided at the upper end of the water tank 91 to facilitate the replenishment of cleaning agent into the water tank 91.

[0051] Furthermore, in this embodiment, a plurality of drain pipes 94 connected to the water storage chamber 92 are equidistantly arranged along the length direction on one side of the outer wall of the water storage chamber 92 close to the scraper strip 6. One end of the drain pipe 94 away from the water storage chamber 92 is located above the scraping side of the scraper strip 6 and is equipped with a spray head. Top support bars 95 for supporting the drain pipes 94 are installed on opposite sides of the two auxiliary plates 51. Cleaning branches 96 for removing dirt on the surface of the roller brush 7 are installed on the support frame 8 and the bottom of the water storage chamber 92.

[0052] In the specific implementation process, before cleaning the photovoltaic panel body 1, the water pump 93 is started. The water pump 93 draws out the cleaning agent in the water tank 91 and discharges it into the water storage chamber 92. Since the photovoltaic panel body 1 is placed at an angle, the water in the water storage chamber 92 accumulates near the lower side of the photovoltaic panel body 1; then the cleaning agent in the water storage chamber 92 enters the drain pipe 94 and is sprayed out through the spray head, so that the cleaning agent flows from the upper side of the photovoltaic panel body 1 to the lower side thereof, so as to facilitate the infiltration and softening of the dirt and bird droppings on the upper end of the photovoltaic panel body 1, thereby facilitating subsequent cleaning treatment.

[0053] Reference Figure 6 As shown, during the process of cleaning the dirt on the upper end of the photovoltaic panel body 1 by the roller brush 7, the dirt is easily retained on the surface of the roller brush 7. The dirt on the upper end of the photovoltaic panel body 1 cannot be completely removed during recycling, and the dirt on the surface of the roller brush 7 is easily smeared on the upper end of the photovoltaic panel body 1, affecting the cleaning effect of the photovoltaic panel body 1. In order to avoid the occurrence of this problem, a corresponding cleaning branch chain 96 is also provided in this embodiment. Specifically, the cleaning branch chain 96 includes a fixed frame 961 installed in the middle of the lower end of the support frame 8, and two arc-shaped cylinders 962 are symmetrically arranged on both sides of the fixed frame 961 along the width direction of the support frame 8. The upper end of the arc-shaped cylinder 962 is connected to the water storage chamber 92 through a connecting cylinder 963; the two arc-shaped cylinders 962 correspond to the positions of the two roller brushes 7 respectively, and a plurality of equally spaced brush plates 964 and liquid outlet cylinders 965 are installed on the side of the arc-shaped cylinder 962 close to the roller brush 7, and the brush plates 964 and liquid outlet cylinders 965 are staggered.

[0054] During the specific implementation process, the cleaning agent in the water storage chamber 92 can enter the arc tube 962 through the connecting tube 963, so that the cleaning agent in the arc tube 962 flows out through the liquid outlet tube 965 and drips onto the surface of the roller brush 7. During this process, the roller brush 7 is driven by the displacement block 5 to move along the length direction of the bonding plate 4 to rotate the roller brush 7, so that the dirt on the surface of the roller brush 7 can be scraped off through the brush plate 964, thereby ensuring the cleanliness of the roller brush 7 and preventing residual dirt from affecting the cleaning effect of the photovoltaic panel body 1.

[0055] Reference Figure 7 and Figure 8As shown, in order to facilitate the comprehensive cleaning of dirt on the surface of the photovoltaic panel body 1 and prevent the dirt from flowing onto the upper end of the photovoltaic panel body 1 during the cleaning process, in this embodiment, the bonding plate 4 is provided with installation grooves on both the upper and lower sides of the support block 41 close to the lower side of the photovoltaic panel body 1, and each installation groove has two rotating shafts 966 symmetrically rotatable along the length direction, and the outer walls of the two rotating shafts 966 in the same installation groove are jointly sleeved with an auxiliary belt 967.

[0056] Furthermore, in this embodiment, a ratchet 968 is installed at the end of any one of the rotating shafts 966 in each mounting groove, and the ratchet teeth of the ratchet wheels 968 on the upper and lower sides have opposite rotation directions. A pawl 969 is provided on the side wall of the support block 41 on the lower side of the photovoltaic panel body 1 through a second torsion spring, and the pawl 969 cooperates with the ratchet wheel 968; the second torsion spring always applies a torsional force to the pawl 969 that rotates toward the side close to the ratchet wheel 968, so that the pawl 969 can rest between two adjacent ratchet teeth on the outer wall of the ratchet wheel 968.

[0057] In the specific implementation process, when the displacement block 5 drives the scraper rubber strip 6 and the roller brush 7 to move to the support block 41 on the lower side of the photovoltaic panel body 1, the two moving wheels 53 are respectively in contact with the auxiliary belts 967 on the upper and lower sides of the support block 41, so that the moving wheel 53 drives the rotating shaft 966 to rotate through the auxiliary belt 967, so that the rotating shaft 966 on the upper side of the support block 41 rotates clockwise, and the rotating shaft 966 on the lower side of the support block 41 rotates counterclockwise (in Figure 8 ), at this time, the rotating shaft 966 and the ratchet 968 rotate synchronously, and the pawl 969 cannot lock the ratchet 968; thereby ensuring that the roller brush 7 can be located on the lower side of the photovoltaic panel body 1 and remain in a rotating state without moving. During this period, the roller brush 7 and the arc tube 962 rotate relative to each other, so that the cleaning agent in the arc tube 962 drips onto the surface of the roller brush 7, and then the dirt on the surface of the roller brush 7 is completely scraped off by the brush plate 964, thereby enhancing the cleaning effect of the roller brush 7 and the subsequent cleaning effect of the roller brush 7 on the photovoltaic panel body 1.

[0058] It should be noted that since the roller brush 7 cleans the lower side of the photovoltaic panel body 1, the dirt and cleaning agent scraped off the surface of the roller brush 7 will drip directly downward, thereby avoiding the dirt flowing onto the upper end of the photovoltaic panel body 1 and affecting the cleaning effect. At this time, placing a receiving tube under the roller brush 7 can collect the dirt and cleaning agent to prevent environmental pollution.

[0059] After the roller brush 7 completes cleaning, the driving motor 55 controls the moving wheel 53 to rotate in the opposite direction, and the moving wheel 53 drives the rotating shaft 966 to rotate in the opposite direction through the auxiliary belt 967. At this time, the pawl 969 and the ratchet wheel 968 are in conflict with each other to prevent the rotating shaft 966 from reversing, thereby controlling the auxiliary belt 967 to be in a stationary state through the rotating shaft 966, so as to provide friction force for the moving wheel 53, so that it can drive the displacement block 5, the roller brush 7 and the scraper strip 6 to move to the upper side of the photovoltaic panel body 1 and reset.

[0060] Embodiment 2: Reference Fig. 9 , Fig.10 and Fig.11 As shown, on the basis of Example 1, when the scraper strip 6 scrapes the dirt on the upper end of the photovoltaic panel body 1, the dirt will accumulate on the upper end of the scraper side of the scraper strip 6. Therefore, when the displacement block 5 drives the scraper strip 6 to move to the lower side of the photovoltaic panel body 1, it is easy to push the dirt into the corner between the photovoltaic panel body 1 and the rectangular frame 3, which not only affects the cleaning effect, but the dirt remaining in the corner will also affect the light intensity. Based on this, in this embodiment, pads 101 are installed at both ends of the support rod 52, and the side wall of the pad 101 is provided with an arc-shaped tooth plate 102. A strip groove 103 is provided on the upper side of the bonding plate 4 close to the photovoltaic panel body 1, and two racks 104 meshing with the arc-shaped tooth plate 102 are symmetrically arranged on the top of the strip groove 103 along the length direction, and the racks 104 correspond to the position of the support block 41.

[0061] Furthermore, in this embodiment, a third torsion spring is arranged between the support rod 52 and the auxiliary plate 51, a positioning ring 105 is sleeved on the outer wall of the support rod 52, the positioning ring 105 is located on the side of the auxiliary plate 51 close to the photovoltaic panel body 1, an execution bar 106 is installed on the upper end of the positioning ring 105, and a fixing block 107 matching the execution bar 106 is installed on the side wall of the auxiliary plate 51.

[0062] It should be noted that the third torsion spring always applies a torsion force to the support rod 52 to rotate away from the roller brush 7, so that the support rod 52 drives the execution bar 106 at the upper end of the positioning ring 105 to conflict with the fixing block 107 in the initial state (in Fig.10 As shown in the figure), at this time, the support rod 52 drives the scraper rubber strip 6 to slide and abut against the upper end of the photovoltaic panel body 1.

[0063] During the specific implementation process, the displacement block 5 drives the support rod 52 and the scraper strip 6 to move synchronously through the auxiliary plate 51. When the displacement block 5 drives the scraper strip 6 to move to the lower side of the photovoltaic panel body 1, the scraper strip 6 pushes the dirt on the photovoltaic panel body 1 to the corner between it and the rectangular frame 3. At the same time, when the displacement block 5 drives the support rod 52 to move to the racks 104 at both ends of the strip slide 103 through the auxiliary plate 51, the arc-shaped tooth plate 102 at the end of the support rod 52 engages with the rack 104, thereby driving the support rod 52 and the scraper strip 6 to rotate through the mutual cooperation between the rack 104 and the arc-shaped tooth plate 102, so that the scraping side of the scraper strip 6 rotates upward, thereby being able to scrape off the dirt in the corner between the photovoltaic panel body 1 and the rectangular frame 3, avoiding dirt remaining on the photovoltaic panel body 1 and affecting the light intensity and power generation efficiency.

[0064] When the support rod 52 drives the scraper strip 6 to rotate upward, the support rod 52 drives the execution strip 106 to rotate synchronously through the positioning ring 105, so that the execution strip 106 rotates to the side away from the fixed block 107, avoiding interference between the execution strip 106 and the fixed block 107; after the scraper strip 6 is cleaned, the displacement block 5 drives the support rod 52 and the scraper strip 6 to reset synchronously through the auxiliary plate 51. At this time, the support rod 52 drives the scraper strip 6 to reset to its initial state under the action of the third torsion spring.

[0065] Embodiment three: Reference Fig.12 and Fig.13 As shown, on the basis of the second embodiment, in order to ensure the scraping effect of the scraper strip 6 on the dirt on the upper end of the photovoltaic panel body 1, and to prevent the dirt remaining on the upper end of the scraping side of the scraper strip 6 from remaining on the upper end of the photovoltaic panel body 1 and affecting its light intensity, the scraper strip 6 can also be cleaned accordingly in the present embodiment. Specifically, two rotating rods 108 respectively located above the support rod 52 are provided between the two auxiliary plates 51 through the rotation of the fourth torsion spring, and a scraper 109 is installed on the outer wall of the rotating rod 108, and the scraper 109 extends downward away from the side of the rotating rod 108.

[0066] It should be noted that the fourth torsion spring always applies a torsional force to the rotating rod 108 to rotate toward the side away from the roller brush 7, so that the rotating rod 108 drives the scraper 109 to rotate downward and abut against the upper end of the scraper rubber strip 6 in the initial state.

[0067] During the specific implementation process, when the scraper strip 6 moves to the lower side of the photovoltaic panel body 1 and rotates upward, the scraper 109 is always against the upper end of the scraper side of the scraper strip 6 under the action of the fourth torsion spring, so that the dirt remaining on the upper end of the scraper side can be scraped off by the scraper 109; at the same time, the water pump 93 discharges the cleaning agent into the water storage chamber 92, and the cleaning agent in the water storage chamber 92 is sprayed onto the scraper strip 6 and the scraper 109 after passing through the drain pipe 94 and the spray head, so as to flush away the dirt on the scraper strip 6 and the scraper 109, thereby ensuring the cleanliness of the scraper strip 6 and avoiding the dirt remaining on the scraper strip 6 affecting its cleaning effect on the photovoltaic panel body 1.

[0068] During operation: Step 1: First, install the bonding plate 4 on the two side walls of the rectangular frame 3, and then slide the displacement block 5 together with the scraper rubber strip 6, the roller brush 7, the support bracket 8 and the drainage unit 9 on the bonding plate 4 as a whole.

[0069] Step 2: When it is necessary to clean the upper end of the photovoltaic panel body 1, start the water pump 93. The water pump 93 draws out the cleaning agent in the water tank 91 and discharges it into the water storage chamber 92. Since the photovoltaic panel body 1 is placed at an angle, the water in the water storage chamber 92 accumulates near the lower side of the photovoltaic panel body 1; then the cleaning agent in the water storage chamber 92 enters the drain pipe 94 and is sprayed out through the spray head, so that the cleaning agent flows from the upper side of the photovoltaic panel body 1 to its lower side, so as to facilitate the infiltration and softening of the dirt and bird droppings on the upper end of the photovoltaic panel body 1, thereby facilitating the subsequent cleaning process.

[0070] Step 3: Start the driving motor 55, which drives the transmission shaft 54 ​​to rotate. The transmission shaft 54 ​​drives the other transmission shaft 54 ​​to rotate in the opposite direction through the cooperation between the positioning shaft 561, the transmission gear 562 and the belt 563. The transmission shaft 54 ​​drives the moving wheel 53 to rotate synchronously, so that the two moving wheels 53 roll relative to each other on the rectangular frame 3 and drive the displacement block 5 to move synchronously. The displacement block 5 drives the scraper strip 6 and the roller brush 7 to move synchronously, and the upper side of the photovoltaic panel body 1 moves to the lower side thereof, so that the photovoltaic panel body 1 is fully cleaned by the scraper strip 6 and the roller brush 7.

[0071] Step 4: The moving wheel 53 drives the scraper strip 6 and the roller brush 7 to move synchronously along the length direction of the bonding plate 4 through the displacement block 5, and the dirt on the upper end of the photovoltaic panel body 1 is scraped off by the scraper strip 6. At the same time, the displacement block 5 drives the roller brush 7 to move synchronously, during which the roller brush 7 rotates to the side away from its moving direction, thereby enhancing the friction effect between the roller brush 7 and the upper end of the photovoltaic panel body 1, so that the roller brush 7 can quickly wipe the upper end of the photovoltaic panel body 1, thereby removing the residual dirt and detergent on the upper end of the photovoltaic panel body 1, thereby completing the automatic cleaning of the photovoltaic panel body 1, and the dirt is easier to remove after being softened, avoiding the presence of residues that affect the irradiation intensity of the photovoltaic panel body 1, thereby enhancing the cleaning effect of the photovoltaic panel body 1.

[0072] Step 5: When the displacement block 5 drives the scraper rubber strip 6 and the roller brush 7 to move to the support block 41 on the lower side of the photovoltaic panel body 1, the two moving wheels 53 contact the auxiliary belts 967 on the upper and lower sides of the support block 41 respectively, so that the moving wheel 53 drives the rotating shaft 966 to rotate through the auxiliary belt 967, so that the rotating shaft 966 on the upper side of the support block 41 rotates clockwise, and the rotating shaft 966 on the lower side of the support block 41 rotates counterclockwise, thereby ensuring that the roller brush 7 can be located at the lower side of the photovoltaic panel body 1 and keep rotating. No movement will occur; during this period, the roller brush 7 and the arc cylinder 962 rotate relative to each other, and the cleaning agent in the water storage chamber 92 enters the arc cylinder 962 through the connecting cylinder 963, so that the cleaning agent in the arc cylinder 962 flows out through the liquid outlet cylinder 965 and drips on the surface of the roller brush 7, and the brush plate 964 and the roller brush 7 rotate relative to each other, so that the dirt on the surface of the roller brush 7 can be scraped off by the brush plate 964, thereby ensuring the cleanliness of the roller brush 7 and preventing residual dirt from affecting the cleaning effect of the photovoltaic panel body 1.

[0073] After the roller brush 7 completes cleaning, the driving motor 55 controls the moving wheel 53 to rotate in the opposite direction, and the moving wheel 53 drives the rotating shaft 966 to rotate in the opposite direction through the auxiliary belt 967. At this time, the pawl 969 and the ratchet wheel 968 are in conflict with each other to prevent the rotating shaft 966 from reversing, thereby controlling the auxiliary belt 967 to be in a stationary state through the rotating shaft 966, so as to provide friction force for the moving wheel 53, so that it can drive the displacement block 5, the roller brush 7 and the scraper strip 6 to move to the upper side of the photovoltaic panel body 1 and reset.

[0074] Step 6: When the displacement block 5 drives the support rod 52 and the scraper strip 6 to move to the lower side of the photovoltaic panel body 1 through the auxiliary plate 51, the scraper strip 6 pushes the dirt on the photovoltaic panel body 1 to the corner between it and the rectangular frame 3. At the same time, the support rod 52, the arc-shaped tooth plate 102 and the rack 104 cooperate with each other to drive the support rod 52 and the scraper strip 6 to rotate, thereby scraping off the dirt in the corner between the photovoltaic panel body 1 and the rectangular frame 3, avoiding dirt remaining on the photovoltaic panel body 1 and affecting the light intensity and power generation efficiency.

[0075] When the scraper strip 6 rotates upward, the scraper 109 abuts against the upper end of the scraper side of the scraper strip 6 and scrapes off the dirt remaining on the upper end of the scraper side; at the same time, the water pump 93 discharges the cleaning agent into the water storage chamber 92, and the cleaning agent in the water storage chamber 92 is sprayed onto the scraper strip 6 and the scraper 109 after passing through the drain pipe 94 and the spray head, so as to flush away the dirt on the scraper strip 6 and the scraper 109, thereby ensuring the cleanliness of the scraper strip 6 and avoiding the dirt remaining on the scraper strip 6 from affecting its cleaning effect on the photovoltaic panel body 1.

[0076] After the scraper strip 6 is cleaned, the displacement block 5 drives the support rod 52 and the scraper strip 6 to reset synchronously through the auxiliary plate 51. At this time, the support rod 52 drives the scraper strip 6 to reset to the initial state under the action of the third torsion spring.

[0077] Step 7: After the photovoltaic panel body 1 is cleaned, the driving motor 55 drives the transmission shaft 54 ​​to rotate in the opposite direction, so that the two moving wheels 53 rotate in the opposite direction and drive the displacement block 5, the scraper rubber strip 6 and the roller brush 7 to move from the lower side of the photovoltaic panel body 1 to the upper side to reset.

[0078] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0079] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic cleaning mechanism for the surface of a photovoltaic power generation panel, comprising a photovoltaic panel body (1), a bracket (2) being arranged at the lower end of the photovoltaic panel body (1), an outer wall of the photovoltaic panel body (1) having a rectangular frame (3), both side walls of the rectangular frame (3) in the width direction being arranged with a bonding plate (4), a displacement block (5) slidingly sleeved on the bonding plate (4) and sliding along the length direction thereof, baffles (42) being installed at both ends of the bonding plate (4) through support blocks (41), characterized in that: Scraping rubber strips (6) for scraping dirt off the upper end of the photovoltaic panel body (1) are arranged on opposite sides of the two displacement blocks (5), and two rolling brushes (7) for secondary cleaning the upper end of the photovoltaic panel body (1) are arranged on opposite sides of the two displacement blocks (5) so as to rotate symmetrically along the width direction, and the rolling brush (7) is located between the two scraping rubber strips (6). A supporting frame (8) is commonly installed on the upper ends of the two displacement blocks (5), and a drainage unit (9) for further cleaning the upper end of the photovoltaic panel body (1) is installed on the supporting frame (8). The drainage unit (9) comprises two water tanks (91) respectively installed on the upper ends of the displacement blocks (5) and a water storage chamber (92) arranged on the upper end of the supporting frame (8), and the water storage chamber (92) is connected to the two water tanks (91).

2. The automatic cleaning mechanism for the surface of a photovoltaic panel according to claim 1, characterized in that: An auxiliary plate (51) is provided on a side wall of the displacement block (5) close to the lower side of the photovoltaic panel body (1); a support rod (52) is provided on the opposite sides of the two auxiliary plates (51); a scraper rubber strip (6) is provided on the outer wall of the support rod (52) via a first torsion spring sleeve; the end of the scraper rubber strip (6) away from the support rod (52) is a scraper side; the bottom of the scraper side is in sliding contact with the photovoltaic panel body (1), and the side of the scraper side away from the support rod (52) gradually tilts downward.

3. The automatic cleaning mechanism for the surface of a photovoltaic panel according to claim 1, characterized in that: The displacement block (5) has two symmetrically arranged connection grooves located at the upper and lower sides of the rectangular frame (3), respectively. A moving wheel (53) is rotatably arranged in the connection groove. The moving wheel (53) rolls against the upper and lower sides of the rectangular frame (3). A transmission shaft (54) is rotatably passed through the middle of the moving wheel (53). A drive motor (55) is installed on the side of the displacement block (5) away from the rectangular frame (3) through a motor seat. The output shaft of the drive motor (55) is connected to any one of the transmission shafts (54). A linkage branch chain (56) is arranged between the two transmission shafts (54) on the same displacement block (5).

4. The automatic cleaning mechanism for the surface of a photovoltaic panel according to claim 3 is characterized in that: The linkage branch chain (56) comprises a positioning shaft (561) rotatably mounted inside the displacement block (5) and located between the two transmission shafts (54); the positioning shaft (561) and one of the transmission shafts (54) are sleeved with mutually meshing transmission gears (562) on their outer walls; a belt (563) is sleeved between the positioning shaft (561) and the other transmission shaft (54); and a receiving groove for mounting the positioning shaft (561), the transmission gear (562) and the belt (563) is provided inside the displacement block (5).

5. The automatic cleaning mechanism for the surface of a photovoltaic panel according to claim 3 is characterized by: A connecting shaft (71) is inserted into the interior of each of the two roller brushes (7), and both ends of the connecting shaft (71) are respectively rotatably inserted into the interior of the displacement block (5), and the two connecting shafts (71) are symmetrically distributed along the transmission shaft (54), and the two connecting shafts (71) are connected to the transmission shaft (54) at the lower side of the displacement block (5) via a belt drive.

6. The automatic cleaning mechanism for the surface of a photovoltaic panel according to claim 1, characterized in that: The liquid discharge unit (9) further comprises a water pump (93), wherein the water pump (93) is installed between the water storage chamber (92) and the two water tanks (91), wherein the water inlet end of the water pump (93) extends into the interior of the water tank (91), and the water outlet end of the water pump (93) extends into the water storage chamber (92); A plurality of drainage pipes (94) connected to the water storage chamber (92) are arranged at equal intervals along the length direction on one side of the outer wall of the water storage chamber (92) close to the scraper rubber strip (6); one end of the drainage pipe (94) away from the water storage chamber (92) is located above the scraper side of the scraper rubber strip (6) and is equipped with a spray head; top support bars (95) for supporting the drainage pipes (94) are installed on opposite sides of the two auxiliary plates (51); and a cleaning branch chain (96) for removing dirt from the surface of the roller brush (7) is installed at the bottom of the support frame (8) and the water storage chamber (92).

7. The automatic cleaning mechanism for the surface of a photovoltaic panel according to claim 6, characterized in that: The cleaning branch chain (96) comprises a fixing frame (961) mounted at the middle of the lower end of the supporting frame (8), two arc-shaped cylinders (962) are symmetrically arranged on both sides of the fixing frame (961) along the width direction of the supporting frame (8), and the upper ends of the arc-shaped cylinders (962) are connected to the water storage chamber (92) via the connecting cylinder (963); The two arc-shaped cylinders (962) correspond to the positions of the two rolling brushes (7) respectively. A plurality of brush plates (964) and liquid outlet cylinders (965) distributed at equal intervals are installed on one side of the arc-shaped cylinder (962) close to the rolling brush (7). The brush plates (964) and liquid outlet cylinders (965) are distributed in a staggered manner.

8. The automatic cleaning mechanism for the surface of a photovoltaic panel according to claim 1, characterized in that: The support block (41) of the laminating plate (4) close to the lower side of the photovoltaic panel body (1) is provided with mounting grooves on both the upper and lower sides, and two rotating shafts (966) are symmetrically arranged in each mounting groove along the length direction, and the outer walls of the two rotating shafts (966) in the same mounting groove are jointly sleeved with an auxiliary belt (967).

9. The automatic cleaning mechanism for the surface of a photovoltaic panel according to claim 8, characterized in that: A ratchet (968) is installed at the end of any one of the rotating shafts (966) in the installation groove, and the ratchet teeth of the ratchet wheels (968) on the upper and lower sides rotate in opposite directions. A pawl (969) is provided on the side wall of the support block (41) at the lower side of the photovoltaic panel body (1) through the rotation of a second torsion spring, and the pawl (969) cooperates with the ratchet wheel (968).

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