A surface cleaning device for a photovoltaic power generation device

Abstract

The present invention relates to the technical field of photovoltaic power generation, and particularly to a surface cleaning device for a photovoltaic power generation device. The present invention provides a surface cleaning device for a photovoltaic power generation device that can adjust the cleaning intensity. A surface cleaning device for a photovoltaic power generation device includes a handle, a mounting plate, a motor, a circular brush, etc.; the front part of the handle is connected to the mounting plate, both the left and right parts of the mounting plate are connected to motors, and the output shafts of the motors are both connected to circular brushes. The support rod is sleeved at the frame of the photovoltaic power generation device to support the front part of the circular brush of this device. The rotation of the circular brush can brush the surface of the photovoltaic power generation device, and the water-absorbing roller brush moves backward to suck away the dirty water generated by the brushing, making the surface of the photovoltaic power generation device dry. When brushing, the support rod slides up and down to adjust the position, which can change the height of the moving frame, and further change the contact force between the circular brush and the surface of the photovoltaic power generation device, thereby achieving the purpose of changing the cleaning intensity.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and particularly to a surface cleaning device for a photovoltaic power generation device. Background Art

[0002] A photovoltaic power generation device is a device that converts light energy into electrical energy. The main light source is generally sunlight. In order to better absorb light energy for power generation, the photovoltaic power generation device is generally installed in an outdoor unobstructed position. After a long time, a large amount of dirt and impurities will be generated on the surface of the photovoltaic power generation device, affecting the power generation effect. Therefore, regular cleaning is required.

[0003] The patent with the patent authorization announcement number CN213194712U discloses a dust removal device for a photovoltaic power generation device. The dust removal device includes a base and a photovoltaic panel. An L-shaped bracket is provided at the top of the base. The two ends of the L-shaped bracket are inclined with photovoltaic panels. A rotating rod is hinged at the bottom of the vertical rod of the L-shaped bracket. First chutes are provided at both ends of the rotating rod. An electric push rod is provided at one end of the horizontal rod of the L-shaped bracket away from the photovoltaic panel. The dust removal device drives the cleaning roller to rotate through a driving motor, and the cleaning roller cleans the surface of the photovoltaic panel. The rotating rod is pushed by the electric push rod to rotate on the L-shaped bracket. When the rotating rod rotates, the rotating rod drives the slider to slide on the second chute. When the cleaning roller moves to contact and squeeze the T-shaped rod on the one-way valve, water will flow out through the drain pipe. Water is added when the cleaning roller cleans the surface of the photovoltaic panel, which can improve the dust removal effect. However, the dust removal device cannot adjust the cleaning strength of the cleaning roller. When cleaning stubborn stains, it is necessary to increase the cleaning strength to ensure the cleaning effect. For some easily cleaned stains, it is necessary to reduce the cleaning strength to avoid scratching the photovoltaic power generation device.

[0004] Therefore, we propose a surface cleaning device for a photovoltaic power generation device that can adjust the cleaning strength. Summary of the Invention

[0005] In order to overcome the disadvantages that the existing dust removal device cannot adjust the cleaning strength of the cleaning roller and cannot ensure the cleaning effect, the present invention provides a surface cleaning device for a photovoltaic power generation device that can adjust the cleaning strength.

[0006] A surface cleaning device for a photovoltaic power generation device includes a handle, a mounting plate, motors, circular brushes, a water pipe, a support adjustment mechanism, and a water absorption mechanism. The front part of the handle is connected with the mounting plate. Motors are connected to both the left and right parts of the mounting plate. Circular brushes are connected to the output shafts of the motors. A water pipe is connected between the handle and the mounting plate. A support adjustment mechanism for adjusting the cleaning strength of the circular brush is provided on the handle, and a water absorption mechanism for sucking dirty water on the surface of the photovoltaic power generation device is provided on the handle.

[0007] As a further preferred solution, the support adjustment mechanism includes a fixed plate, a movable frame, a support rod, a mounting frame, a limit block and a first torsion spring. The middle position of the front part of the handle is connected with the fixed plate. The front part of the fixed plate is slidably connected with the movable frame. The left and right parts of the movable frame are both slidably connected with the support rods. The left and right parts of the movable frame are both connected with the mounting frames. The front parts of the mounting frames are both rotatably connected with the limit blocks. A first torsion spring is connected between each limit block and the adjacent mounting frame.

[0008] As a further preferred solution, the water absorption mechanism includes a connecting plate, a fixed rod, a water absorption roller brush and a support plate. The lower part of the front end of the handle is connected with the connecting plate. The middle part of the connecting plate is connected with the fixed rod. The front end of the fixed rod is rotatably connected with the water absorption roller brush. The left and right parts of the connecting plate are both connected with the support plates. The support plates are both connected with the front part of the fixed rod.

[0009] As a further preferred solution, it further includes a reinforcement mechanism for reinforcing the limit blocks. The reinforcement mechanism includes an arc-shaped plate, a pull rod, a movable rod, a clamping rod, a wire pulley, a pull rope and a guide rod. The rear part of the handle is connected with the arc-shaped plate. The pull rod is slidably connected inside the arc-shaped plate. Two guide rods are connected to the front part of the handle. The movable rod is slidably connected between the two guide rods. The left and right parts of the movable rod are both connected with the clamping rods. The clamping rods are both in contact with the adjacent limit blocks. The wire pulley is rotatably connected to the front part of the handle. The middle part of the movable rod is connected with the pull rope. The tail end of the pull rope bypasses the wire pulley and is connected with the front end of the pull rod.

[0010] As a further preferred solution, it further includes a cleaning mechanism for cleaning the side of the photovoltaic panel. The cleaning mechanism includes a connecting block, a strip brush, a first elastic member, a contact plate and an extrusion block. The lower parts of the support rods are both connected with the connecting blocks. The inner ends of the connecting blocks are both slidably connected with the strip brushes. A first elastic member is connected between each strip brush and the adjacent connecting block. The middle parts of the strip brushes are both connected with the contact plates. A number of extrusion blocks are connected to the circular hair brushes. The extrusion blocks rotate and are both in contact with the adjacent contact plates.

[0011] As a further preferred solution, it further includes a scraping mechanism for scraping water from the water absorption roller brush. The scraping mechanism includes a fixed block, a scraping plate, a mounting block, a clamping block and a second elastic member. A number of fixed blocks are connected to the front part of the fixed rod. The scraping plate is rotatably connected between the number of fixed blocks. The scraping plate is in contact with the water absorption roller brush. The left and right parts of the front part of the fixed rod are both connected with the mounting blocks. The upper parts of the mounting blocks are both slidably connected with the clamping blocks. A second elastic member is connected between each clamping block and the adjacent mounting block.

[0012] As a further preferred solution, it further includes a collection mechanism for collecting dirty water. The collection mechanism includes a collection box, a rotating rod, a second torsion spring, and a dial rod. The front part of the fixed rod is clamped with a collection box. The lower rear parts of the left and right sides of the collection box are both connected with a rotating rod, and a dial rod is rotatably connected to each rotating rod. A second torsion spring is connected between the dial rod and the adjacent rotating rod.

[0013] As a further preferred solution, a plurality of bumps are connected to the support rods.

[0014] The present invention has the following advantages: 1. The support rods are sleeved at the frame of the photovoltaic power generation device to support the front part of the circular brush of this device. The rotation of the circular brush can brush the surface of the photovoltaic power generation device, and the water-absorbing roller brush moves backward to suck away the dirty water generated by the brushing, making the surface of the photovoltaic power generation device dry. When brushing, after the support rods slide up and down to adjust the position, the height of the moving frame can be changed, thereby changing the contact force between the circular brush and the surface of the photovoltaic power generation device, and thus achieving the purpose of changing the cleaning force.

[0015] 2. The clamping rod presses on the upper side of the limit block, thereby strengthening the limit block and preventing the support rod from loosening in the moving frame after the adjustment is completed.

[0016] 3. The strip brush will move along with the movement of this device to brush the corners of the photovoltaic panel. Under the cooperation of the contact plate and the extrusion block, the strip brush can move back and forth continuously while moving backward with this device to improve the brushing effect.

[0017] 4. When the water-absorbing roller brush rolls on the surface of the photovoltaic power generation device to absorb water, it will contact the scraper. The scraper scrapes the water from the water-absorbing roller brush to ensure the continuous water absorption performance of the water-absorbing roller brush. The scraped dirty water will enter the collection box for collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structure diagram of the present invention.

[0019] Figure 2 It is a partial three-dimensional structure diagram of the present invention.

[0020] Figure 3 It is a three-dimensional structure diagram of the support adjustment mechanism of the present invention.

[0021] Figure 4 It is a partial three-dimensional structure diagram of the support adjustment mechanism of the present invention.

[0022] Figure 5 It is a three-dimensional structure diagram of the water absorption mechanism of the present invention.

[0023] Figure 6 It is a three-dimensional structure diagram of the reinforcement mechanism of the present invention.

[0024] Figure 7 It is an enlarged structural schematic diagram of part A of the present invention.

[0025] Figure 8 It is an enlarged structural schematic diagram of part B of the present invention.

[0026] Figure 9 It is a three-dimensional structural schematic diagram of the cleaning mechanism of the present invention.

[0027] Figure 10 It is a three-dimensional structural schematic diagram of the scraping mechanism of the present invention.

[0028] Figure 11 It is a partial three-dimensional structural schematic diagram of the scraping mechanism of the present invention.

[0029] Figure 12 It is a three-dimensional structural schematic diagram of the collection mechanism of the present invention.

[0030] Figure 13 It is a partial three-dimensional structural schematic diagram of the collection mechanism of the present invention.

[0031] Reference numerals in the attached drawings: 1 - handle, 2 - mounting plate, 3 - motor, 4 - circular brush, 5 - water pipe, 6 - support and adjustment mechanism, 60 - fixing plate, 61 - moving frame, 62 - support rod, 63 - mounting frame, 64 - limit block, 65 - first torsion spring, 7 - water absorption mechanism, 70 - connecting plate, 71 - fixing rod, 72 - water absorption roller brush, 73 - support plate, 8 - reinforcement mechanism, 80 - arc plate, 81 - pull rod, 82 - moving rod, 83 - clamping rod, 84 - wire pulley, 85 - pull rope, 86 - guide rod, 9 - cleaning mechanism, 90 - connecting block, 91 - strip brush, 92 - first elastic member, 93 - contact plate, 94 - extrusion block, 10 - scraping mechanism, 100 - fixing block, 101 - scraper, 102 - mounting block, 103 - clamping block, 104 - second elastic member, 11 - collection mechanism, 110 - collection box, 111 - rotating rod, 112 - second torsion spring, 113 - dial rod. Detailed implementation manners

[0032] The technical solutions of the present invention will be further described below with reference to the accompanying drawings.

[0033] Embodiment 1

[0034] A surface cleaning device for a photovoltaic power generation device, as Figure 1 and Figure 2As shown in the figure, it includes a handle 1, a mounting plate 2, a motor 3, a circular brush 4, a water pipe 5, a support adjustment mechanism 6 and a water absorption mechanism 7. The front part of the handle 1 is welded with the mounting plate 2. Motors 3 are bolted to both the left and right parts of the mounting plate 2. Circular brushes 4 for brushing the photovoltaic power generation device are connected to the output shafts of the motors 3. A water pipe 5 is connected between the handle 1 and the mounting plate 2. A support adjustment mechanism 6 is provided on the handle 1, and the support adjustment mechanism 6 can adjust the cleaning strength of the circular brush 4. A water absorption mechanism 7 is provided on the handle 1, and the water absorption mechanism 7 can suck the dirty water on the surface of the photovoltaic power generation device.

[0035] When using this device, the staff holds the rear position of the handle 1, and then moves this device to the photovoltaic power generation device, so that the support adjustment mechanism 6 is stuck on the frame of the photovoltaic power generation device to support this device. Then the staff starts the motor 3, and the output shaft of the motor 3 rotates to drive the circular brush 4 to rotate. The circular brush 4 rotates to brush the surface of the photovoltaic power generation device. The water pipe 5 can convey water to the photovoltaic power generation device for the circular brush 4 to carry out the brushing work. When brushing, the staff controls the movement of this device through the handle 1, so that the circular brush 4 moves to change the cleaning position. The water absorption mechanism 7 can adsorb the stains and dirty water brushed out while moving behind the circular brush 4. At the same time, the staff can adjust the support adjustment mechanism 6 according to the dirt degree on the surface of the photovoltaic power generation device, thereby changing the contact force between the circular brush 4 and the surface of the photovoltaic power generation device, and then adjusting the cleaning strength to ensure the cleaning effect.

[0036] As Figure 1 , Figure 3 and Figure 4 shown in the figure, the support adjustment mechanism 6 includes a fixed plate 60, a moving frame 61, a support rod 62, a mounting frame 63, a limit block 64 and a first torsion spring 65. The middle position of the front part of the handle 1 is connected with the fixed plate 60. The moving frame 61 is slidably connected to the front part of the fixed plate 60. Support rods 62 are slidably connected to both the left and right parts of the moving frame 61. Four convex blocks are welded on each of the support rods 62. Mounting frames 63 are bolted to both the left and right parts of the moving frame 61. Limit blocks 64 for catching the convex blocks are rotatably connected to the front parts of the mounting frames 63. First torsion springs 65 are connected between the limit blocks 64 and the adjacent mounting frames 63.

[0037] When using this device, the staff sleeved the lower part of the support rod 62 on the frame of the photovoltaic power generation device. The support rod 62 and the movable frame 61 cooperate to support the circular brush 4 at the front of this device. When the staff pulls the handle 1 to move back and forth, the support rod 62 will also slide back and forth on the frame of the photovoltaic power generation device. When it is necessary to adjust the cleaning strength, the staff controls the support rod 62 to slide up and down in the movable frame 61. The up and down sliding of the support rod 62 will drive the convex block to move up and down. When the convex block moves up and down to contact the limit block 64, the convex block will squeeze the limit block 64 to rotate, and the first torsion spring 65 will deform. When the support rod 62 slides up and down to the appropriate position, under the action of the reset of the first torsion spring 65, the limit block 64 will reverse and press the convex block, thereby fixing the position of the support rod 62. After the support rod 62 slides up and down to adjust the position, it can change the height of the movable frame 61, thereby changing the contact strength between the circular brush 4 and the surface of the photovoltaic power generation device, and thus achieving the purpose of changing the cleaning strength.

[0038] As Figure 1 and Figure 5 shown, the water absorption mechanism 7 includes a connecting plate 70, a fixed rod 71, a water absorption roller brush 72 and a support plate 73. The lower part of the front end of the handle 1 is welded with a connecting plate 70. The middle part of the connecting plate 70 is welded with a fixed rod 71. The front end of the fixed rod 71 is rotatably connected with a water absorption roller brush 72 for absorbing dirty water. Both the left and right parts of the connecting plate 70 are welded with support plates 73, and the support plates 73 are both connected to the front part of the fixed rod 71.

[0039] When using this device, the handle 1 moves backward to drive the circular brush 4 to move backward on the surface of the photovoltaic power generation device for brushing. When the handle 1 moves backward, it will drive the fixed rod 71 to move backward through the connecting plate 70. The backward movement of the fixed rod 71 drives the water absorption roller brush 72 to move backward. The backward movement of the water absorption roller brush 72 can suck away the dirty water generated by brushing, making the surface of the photovoltaic power generation device dry. When the fixed rod 71 moves backward, the support plates 73 can support both sides of the fixed rod 71, increasing the stability of the fixed rod 71 during movement.

[0040] Embodiment 2

[0041] On the basis of Embodiment 1, as Figure 1 、 Figure 6 、 Figure 7 and Figure 8As shown in the figure, it further includes a reinforcement mechanism 8. The reinforcement mechanism 8 can reinforce the limit block 64. The reinforcement mechanism 8 includes an arc-shaped plate 80, a pull rod 81, a moving rod 82, a clamping rod 83, a wire pulley 84, a pull rope 85 and a guide rod 86. An arc-shaped plate 80 is bolted to the rear of the handle 1. A pull rod 81 is slidably connected inside the arc-shaped plate 80. Two guide rods 86 are welded to the front of the handle 1. A moving rod 82 is slidably connected between the two guide rods 86. Clamping rods 83 are welded to both the left and right parts of the moving rod 82. The clamping rods 83 are in contact with the adjacent limit blocks 64. A wire pulley 84 is connected to the front of the handle 1 through a bearing. A pull rope 85 is connected to the middle of the moving rod 82. The tail end of the pull rope 85 bypasses the wire pulley 84 and is connected to the front end of the pull rod 81.

[0042] In the initial state, the clamping rod 83 presses on the upper side of the limit block 64, thereby reinforcing the limit block 64 and preventing the support rod 62 from loosening in the moving frame 61 after the adjustment is completed. When it is necessary to adjust the cleaning strength, the staff pulls the pull rod 81 to slide backward. The backward sliding of the pull rod 81 drives the moving rod 82 to slide upward on the guide rod 86 through the pull rope 85. The upward sliding of the moving rod 82 drives the clamping rod 83 to move upward and no longer block the limit block 64. At this time, the limit block 64 can rotate normally to adjust the position of the support rod 62. After the adjustment is completed, the staff releases the pull rod 81. Under the action of gravity, the moving rod 82 drives the clamping rod 83 to slide downward and press on the limit block 64 again. The downward sliding of the moving rod 82 will also drive the pull rod 81 to slide forward and reset through the pull rope 85.

[0043] As Figure 1 and Figure 9 As shown in the figure, it further includes a cleaning mechanism 9. The cleaning mechanism 9 can clean the side of the photovoltaic panel. The cleaning mechanism 9 includes a connecting block 90, a strip brush 91, a first elastic member 92, a contact plate 93 and a pressing block 94. Connecting blocks 90 are welded to the lower parts of the support rods 62. Strip brushes 91 for cleaning the corners of the photovoltaic panel are slidably connected to the inner ends of the connecting blocks 90. First elastic members 92 are connected between the strip brushes 91 and the adjacent connecting blocks 90. Contact plates 93 are welded to the middle parts of the strip brushes 91. At least four pressing blocks 94 are connected to the circular brush 4. The pressing blocks 94 rotate and are in contact with the adjacent contact plates 93.

[0044] When using this device, when the support rod 62 is sleeved on the frame of the photovoltaic power generation device, the strip brush 91 is located at the side position of the photovoltaic panel. When the device moves back and forth, the strip brush 91 will also move back and forth to brush the corners of the photovoltaic panel. When the circular brush 4 rotates, the extrusion block 94 will also rotate. When the extrusion block 94 rotates to contact the contact plate 93, the extrusion block 94 will continue to rotate and squeeze the contact plate 93 to move backward. The backward movement of the contact plate 93 drives the strip brush 91 to slide backward on the connecting block 90, and the first elastic member 92 deforms. When the extrusion block 94 rotates away from the contact plate 93, under the action of the reset of the first elastic member 92, the strip brush 91 slides forward and resets. When the next extrusion block 94 rotates to contact the contact plate 93, repeating the above actions can make the strip brush 91 continuously move back and forth while following the device backward to improve the brushing effect.

[0045] As Figure 1 , Figure 10 and Figure 11 shown, it further includes a scraping mechanism 10. The scraping mechanism 10 can scrape water from the water-absorbing roller brush 72. The scraping mechanism 10 includes a fixed block 100, a scraper 101, a mounting block 102, a clamping block 103 and a second elastic member 104. Four fixed blocks 100 are welded to the front part of the fixed rod 71. A scraper 101 for scraping the internal sewage of the water-absorbing roller brush 72 is rotatably connected between the four fixed blocks 100. The scraper 101 contacts the water-absorbing roller brush 72. Mounting blocks 102 are welded to the left and right parts of the front part of the fixed rod 71. Clamping blocks 103 for limiting the scraper 101 are slidably connected to the upper parts of the mounting blocks 102. Second elastic members 104 are connected between the clamping blocks 103 and the adjacent mounting blocks 102.

[0046] As Figure 1 , Figure 12 and Figure 13 shown, it further includes a collection mechanism 11. The collection mechanism 11 can collect the sewage. The collection mechanism 11 includes a collection box 110, a rotating rod 111, a second torsion spring 112 and a dial rod 113. A collection box 110 for collecting the sewage is detachably connected to the front part of the fixed rod 71. Rotating rods 111 are welded to the lower rear parts of the left and right sides of the collection box 110. Dial rods 113 for fixing the collection box 110 on the fixed rod 71 are rotatably connected to the rotating rods 111. Second torsion springs 112 are connected between the dial rods 113 and the adjacent rotating rods 111.

[0047] When using the device, the water-absorbing roller brush 72 will contact the scraper 101 when rolling on the surface of the photovoltaic power generation device to absorb water. The scraper 101 is used to scrape water from the water-absorbing roller brush 72, and the dirty water scraped out will enter the collection box 110 for collection. When it is necessary to clean the dirty water in the collection box 110, the staff pulls the collection box 110 forward on the fixed rod 71 and removes the collection box 110 from the fixed rod 71. When the collection box 110 moves forward, the lever 113 is squeezed by the fixed rod 71 and rotates backward, and the second torsion spring 112 deforms. When the lever 113 is disengaged from the fixed rod 71, under the action of the reset of the second torsion spring 112, the lever 113 rotates forward and resets accordingly. After the collection box 110 is removed, the staff can push the scraper 101 to rotate upward on the fixed block 100, and then control the slider 103 to slide outward, and the second elastic member 104 deforms. After the scraper 101 is lifted, the staff releases the slider 103, and under the action of the reset of the second elastic member 104, the slider 103 slides inward and resets to lock the scraper 101, so that the scraper 101 stops scraping water in the lifted state. When it is necessary to reinstall the collection box 110 on the fixed rod 71, the staff first controls the slider 103 to release the scraper 101, and the scraper 101 rotates downward and resets to contact the water-absorbing roller brush 72 again. Then the staff aligns the collection box 110 with the lower part of the fixed rod 71 and pushes it backward, so that the lever 113 rotates and catches on the fixed rod 71, thereby fixing the collection box 110 on the fixed rod 71.

[0048] It should be understood that the above description is only for exemplary purposes and does not mean to limit the present invention. Those skilled in the art will understand that the variant forms of the present invention will be included within the scope of the claims herein.

Claims

1. A surface cleaning device for a photovoltaic power generation device, comprising a handle (1), a mounting plate (2), a motor (3), a circular brush (4) and a water pipe (5). The front part of the handle (1) is connected to the mounting plate (2). Motors (3) are connected to both the left and right parts of the mounting plate (2). Circular brushes (4) are connected to the output shafts of the motors (3). A water pipe (5) is connected between the handle (1) and the mounting plate (2). It is characterized in that: It further comprises a support adjustment mechanism (6) and a water absorption mechanism (7). A support adjustment mechanism (6) for adjusting the cleaning strength of the circular brush (4) is provided on the handle (1), and a water absorption mechanism (7) for sucking the dirty water on the surface of the photovoltaic power generation device is provided on the handle (1). The support adjustment mechanism (6) comprises a fixing plate (60), a moving frame (61), a support rod (62), a mounting frame (63), a limit block (64) and a first torsion spring (65). The middle position of the front part of the handle (1) is connected to the fixing plate (60). The front part of the fixing plate (60) is slidably connected to the moving frame (61). Support rods (62) are slidably connected to both the left and right parts of the moving frame (61). Mounting frames (63) are connected to both the left and right parts of the moving frame (61). Limit blocks (64) are rotatably connected to the front parts of the mounting frames (63). First torsion springs (65) are connected between the limit blocks (64) and the adjacent mounting frames (63). It further comprises a reinforcement mechanism (8) for reinforcing the limit block (64). The reinforcement mechanism (8) comprises an arc plate (80), a pull rod (81), a moving rod (82), a clamping rod (83), a wire pulley (84), a pull rope (85) and a guide rod (86). The rear part of the handle (1) is connected to the arc plate (80). The pull rod (81) is slidably connected inside the arc plate (80). Two guide rods (86) are connected to the front part of the handle (1). A moving rod (82) is slidably connected between the two guide rods (86). Clamping rods (83) are connected to both the left and right parts of the moving rod (82). The clamping rods (83) are in contact with the adjacent limit blocks (64). A wire pulley (84) is rotatably connected to the front part of the handle (1). A pull rope (85) is connected to the middle part of the moving rod (82). The tail end of the pull rope (85) bypasses the wire pulley (84) and is connected to the front end of the pull rod (81).

2. A surface cleaning device for a photovoltaic power generation device according to claim 1, It is characterized in that: The water absorption mechanism (7) comprises a connecting plate (70), a fixing rod (71), a water absorption roller brush (72) and a support plate (73). The lower part of the front end of the handle (1) is connected to the connecting plate (70). The middle part of the connecting plate (70) is connected to the fixing rod (71). The front end of the fixing rod (71) is rotatably connected to the water absorption roller brush (72). Support plates (73) are connected to both the left and right parts of the connecting plate (70). The support plates (73) are connected to the front part of the fixing rod (71).

3. A surface cleaning device for a photovoltaic power generation device according to claim 2, It is characterized in that: It further includes a cleaning mechanism (9) for cleaning the side of the photovoltaic panel. The cleaning mechanism (9) includes a connecting block (90), a strip brush (91), a first elastic member (92), a contact plate (93), and a pressing block (94). Connecting blocks (90) are connected to the lower parts of the support rods (62). The strip brushes (91) are slidably connected to the inner ends of the connecting blocks (90). First elastic members (92) are connected between the strip brushes (91) and the adjacent connecting blocks (90). Contact plates (93) are connected to the middle parts of the strip brushes (91). A number of pressing blocks (94) are connected to the circular hair brushes (4). The pressing blocks (94) rotate and contact the adjacent contact plates (93).

4. The surface cleaning device for a photovoltaic power generation device according to claim 3, characterized in that: It further includes a scraping mechanism (10) for scraping water from the water-absorbing roller brush (72). The scraping mechanism (10) includes a fixed block (100), a scraping plate (101), a mounting block (102), a clamping block (103), and a second elastic member (104). A number of fixed blocks (100) are connected to the front part of the fixed rod (71). A scraping plate (101) is rotatably connected between the number of fixed blocks (100). The scraping plate (101) contacts the water-absorbing roller brush (72). Mounting blocks (102) are connected to the left and right parts of the front part of the fixed rod (71). Clamping blocks (103) are slidably connected to the upper parts of the mounting blocks (102). Second elastic members (104) are connected between the clamping blocks (103) and the adjacent mounting blocks (102).

5. The surface cleaning device for a photovoltaic power generation device according to claim 4, characterized in that: It further includes a collecting mechanism (11) for collecting dirty water. The collecting mechanism (11) includes a collecting box (110), a rotating rod (111), a second torsion spring (112), and a dial rod (113). The collecting box (110) is clamped to the front part of the fixed rod (71). Rotating rods (111) are connected to the lower parts of the rear sides of the left and right parts of the collecting box (110). Dial rods (113) are rotatably connected to the rotating rods (111). Second torsion springs (112) are connected between the dial rods (113) and the adjacent rotating rods (111).

6. The surface cleaning device for a photovoltaic power generation device according to claim 5, characterized in that: A number of convex blocks are connected to the support rods (62).

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