Combined multi-station photovoltaic cleaning device

Abstract

The invention discloses a combined multi-station photovoltaic cleaning device, and belongs to the technical field of photovoltaic panel cleaning. A combined type multi-station photovoltaic cleaning device comprises a cleaning mechanism used for cleaning a photovoltaic panel, the cleaning mechanism comprises a walking part, the walking part comprises an upper walking assembly and a lower walking assembly, and the upper walking assembly and the lower walking assembly are arranged on the two sides of the photovoltaic panel in the width direction respectively; the rolling brush part is arranged between the upper walking assembly and the lower walking assembly and is used for removing pollutants on the photovoltaic panel; the auxiliary cleaning structure comprises a wind cleaning assembly and a water cleaning assembly, and the wind cleaning assembly and the water cleaning assembly are arranged on the two sides of the walking part respectively and used for blowing or spraying water to the surface of the photovoltaic panel; according to the invention, all the components are controlled to work orderly, so that a cleaning device required by a photovoltaic operation and maintenance scene can be quickly built, and efficient cleaning operation can be flexibly and quickly deployed and carried out for different photovoltaic arrays, different pollutant types and different cleaning requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic panel cleaning, and particularly relates to a combined multi-station photovoltaic cleaning device. BACKGROUND

[0002] Photovoltaic cleaning is an important work of photovoltaic operation and maintenance, and dust and stains on the surface of photovoltaic panels are removed through cleaning, which is very effective in improving power generation efficiency.

[0003] The existing photovoltaic automatic cleaning device has dry and wet types, the dry cleaning device mainly brushes part of the dust and stains on the surface of the photovoltaic panel through the rotation of the roller brush, and the wet cleaning device cleans the surface of the photovoltaic panel through the water spray combined with the rotation of the roller brush. The dry cleaning device has low cleaning efficiency, but has simple structure and low cost, and can meet the needs of photovoltaic operation and maintenance to a certain extent; the wet cleaning device needs a water supply device and a suitable water source, and the application scene is limited; neither of them can quickly adjust the most suitable cleaning mode according to the actual requirements of the operation site. SUMMARY

[0004] The present application relates to the technical field of photovoltaic panel cleaning, and particularly relates to a combined multi-station photovoltaic cleaning device.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] A combined multi-station photovoltaic cleaning device, comprising a cleaning mechanism for cleaning photovoltaic panels, the cleaning mechanism comprising:

[0007] A walking part, the walking part comprising an upper walking assembly and a lower walking assembly, the upper walking assembly and the lower walking assembly being arranged on both sides of the width direction of the photovoltaic panel respectively;

[0008] A roller brush part, the roller brush part being arranged between the upper walking assembly and the lower walking assembly, and being used for removing pollutants on the photovoltaic panel;

[0009] An auxiliary cleaning structure, the auxiliary cleaning structure comprising a wind cleaning assembly and a water cleaning assembly, the wind cleaning assembly and the water cleaning assembly being arranged on both sides of the walking part respectively, and being used for blowing wind or spraying water to the surface of the photovoltaic panel;

[0010] Among them, the upper walking assembly, the lower walking assembly, the wind cleaning assembly and the water cleaning assembly form a quadrilateral structure.

[0011] Preferably, the upper walking assembly and the lower walking assembly are provided with walking seats, the walking seat comprises a C-shaped plate, a side wheel rotatably connected to the bottom wall of the C-shaped plate through a pin shaft, two wheel support plates fixed on the C-shaped plate, support wheels rotatably connected to the wheel support plates through pin shafts, and a side support plate fixed on one side of the C-shaped plate, one of the wheel support plates of the upper walking assembly is fixed with a walking motor for driving the rotation of the support wheels.

[0012] Preferably, the side support plate is fixed with a first pipe clamp, the wheel support plate away from the side support plate of the C-shaped plate is provided with a second pipe clamp, the wind cleaning assembly is connected with the first pipe clamp, and the water cleaning assembly is connected with the second pipe clamp.

[0013] Preferably, the rolling brush part comprises an upper support plate fixed on the upper walking assembly, a driven shaft rotatably connected to the upper support plate, a lower support plate fixed on the lower walking assembly, a driving shaft rotatably connected to the lower support plate, and a rolling brush body fixed between the driven shaft and the driving shaft, the lower support plate is fixed with a rolling brush motor for driving the rotation of the driving shaft.

[0014] Preferably, the wind cleaning assembly and the water cleaning assembly each comprise a pipeline, the pipeline of the wind cleaning assembly is fixedly connected with the first pipe clamp at both ends, the pipeline of the water cleaning assembly is fixedly connected with the second pipe clamp at both ends, a plurality of spray heads are arranged on the pipelines of the wind cleaning assembly and the water cleaning assembly, the pipeline of the wind cleaning assembly is connected with a fan through a connecting pipe, and a water supply device is externally connected to the water inlet end of the pipeline through a quick connector.

[0015] Preferably, the rolling brush body comprises a rotating pipe fixedly connected with the driving shaft, a rotating rod fixedly connected with the driven shaft, connecting rods arranged on the rotating pipe and the rotating rod respectively, and brush plates arranged at the ends of the connecting rods.

[0016] Preferably, the rotating rod and the rotating pipe are slidingly arranged, a guide strip is fixed on the rotating rod, a guide groove matched with the guide strip is arranged on the inner wall of the rotating pipe, and a fastening bolt threadedly connected with the rotating rod is threadedly connected to the rotating pipe.

[0017] Preferably, the pipeline comprises a plurality of conveying pipes, telescopic pipes arranged between adjacent two conveying pipes, and hinged frames arranged between adjacent two conveying pipes, and the conveying pipes at both ends of the pipeline are connected with two first pipe clamps connected with the wind cleaning assembly or two second pipe clamps connected with the water cleaning assembly respectively.

[0018] Preferably, the hinged frame comprises a first connecting rod and a second connecting rod rotatably connected through a pin shaft, and the first connecting rod and the second connecting rod are rotatably connected with adjacent two conveying pipes respectively.

[0019] Preferably, the nozzle is rotatably connected to the delivery pipe via a connecting ball head, and several nozzles on the same pipe are movably connected to a moving plate. Both the drive shaft and the driven shaft are provided with spiral guide grooves, and a guide rod is slidably connected in the spiral guide groove. A connecting plate is provided between the guide rod and the moving plate.

[0020] Compared with the prior art, the present invention provides a combined multi-station photovoltaic cleaning device, which has the following beneficial effects:

[0021] 1. This modular multi-station photovoltaic cleaning device, by setting up an upper walking component, a lower walking component, a roller brush section, a wind cleaning component, and a water cleaning component, controls the orderly operation of each component, which can quickly set up the cleaning device required for photovoltaic operation and maintenance scenarios, and achieve flexible and rapid deployment to carry out efficient cleaning operations for different photovoltaic arrays, different types of pollutants, and different cleaning requirements.

[0022] 2. This combined multi-station photovoltaic cleaning device, by making the roller brush body composed of a sliding rotating tube and a rotating rod, can change the distance between the upper and lower traveling components, thereby adjusting the length of the roller brush, the air cleaning component, and the water cleaning component. This allows the photovoltaic cleaning device to be adapted to the cleaning of photovoltaic panels of different sizes. After cleaning, it retracts to the shortest distance, which is convenient for the transportation, transfer, and storage of the photovoltaic cleaning device.

[0023] 3. This combined multi-station photovoltaic cleaning device, when the drive shaft and driven shaft rotate, the spiral guide groove drives the connecting plate connected to the guide rod to move, so that the connecting plate drives several nozzles to swing through the moving plate, thereby expanding the cleaning range of the nozzles, avoiding cleaning dead corners, and ensuring the cleaning quality of the photovoltaic panels. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the upper walking component of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the lower walking component of the present invention;

[0027] Figure 4 This is a front view schematic diagram of the upward-moving component and the photovoltaic panel of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the water cleaning component of the present invention;

[0029] Figure 6 For the present invention Figure 5 Enlarged structural diagram of section A in the middle;

[0030] Figure 7 This is a schematic diagram of the external structure of the drive shaft of the present invention.

[0031] In the diagram: 1. Photovoltaic panel; 2. Upper traveling assembly; 3. Lower traveling assembly; 4. Roller brush section; 401. Upper support plate; 4011. Driven shaft; 402. Lower support plate; 4021. Drive shaft; 403. Roller brush body; 4031. Rotary tube; 4032. Rotating rod; 4033. Connecting rod; 4034. Brush plate; 404. Roller brush motor; 5. Air cleaning assembly; 6. Water cleaning assembly; 7. Traveling base; 701. C-shaped plate; 702. Side wheel; 703. Wheel support plate; 70 31. Second pipe clamp; 704. Support wheel; 705. Side support plate; 7051. First pipe clamp; 706. Travel motor; 8. Pipeline; 801. Delivery pipe; 802. Telescopic guide pipe; 803. Hinge frame; 8031. First connecting rod; 8032. Second connecting rod; 9. Nozzle; 10. Fan; 11. Quick connector; 12. Guide strip; 121. Guide groove; 13. Fastening bolt; 14. Moving plate; 15. Spiral guide groove; 151. Guide rod; 152. Connecting plate. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] likeFigures 1 to 4 As shown, this embodiment proposes a combined multi-station photovoltaic cleaning device, including a cleaning mechanism for cleaning photovoltaic panels 1. The cleaning mechanism includes: a walking section, a roller brush section 4, and an auxiliary cleaning structure. The walking section includes an upper walking component 2 and a lower walking component 3, which are respectively arranged on both sides of the photovoltaic panel 1 in the width direction. Power supply and control system components can be installed on the upper walking component 2 and the lower walking component 3. The power supply and control system components are all existing technologies and will not be described in detail here. The roller brush section 4 is arranged between the upper walking component 2 and the lower walking component 3 and is used to remove contaminants on the photovoltaic panel 1. The auxiliary cleaning structure includes a wind cleaning component 5 and a water cleaning component 6, which are respectively arranged on both sides of the walking section and are used to blow air or spray water onto the surface of the photovoltaic panel 1. The upper walking component 2, the lower walking component 3, the wind cleaning component 5, and the water cleaning component 6 form a quadrilateral structure.

[0036] Specifically, the upper walking component 2 and the lower walking component 3 are configured to install the cleaning components in different positions. The upper walking component 2 and the lower walking component 3 are respectively installed at the upper and lower edges of the inclined photovoltaic panel 1, so that the entire device is stably placed on the photovoltaic panel 1. The walking part can be controlled by the background system to move forward or backward on the photovoltaic panel 1, and its speed can be adjusted. When the walking part moves along the photovoltaic panel 1, the roller brush 4 cleans and removes contaminants from the surface of the photovoltaic panel 1. Depending on the usage requirements, the wind cleaning component 5 or the water cleaning component 6 can be installed in different positions of the upper walking component 2 and the lower walking component 3 to achieve different operating purposes.

[0037] The wind cleaning component 5 is installed at the front of the device, which can achieve the cleaning purpose of removing most of the dirt using only wind power;

[0038] The air cleaning component 5 is installed at the rear of the device, which can achieve the cleaning purpose of first sweeping away dirt by the roller brush part 4 and reducing the adhesion of dirt, and then removing dirt by air force;

[0039] The water cleaning component 6 is installed at the upper front of the device. It can achieve the cleaning purpose of removing dirt by rinsing with water alone, or it can achieve the cleaning purpose of rinsing with water first and then brushing with the roller brush 4.

[0040] The water cleaning component 6 is installed at the upper rear of the device. It can first remove some dirt by the roller brush 4, and then further clean the photovoltaic panel 1 by water rinsing. It can also spray water on the roller brush to achieve the cleaning purpose of rinsing and brushing at the same time.

[0041] The air cleaning component 5, water cleaning component 6, and roller brush 4 can work simultaneously via remote control, achieving different cleaning purposes depending on their relative positions.

[0042] The wind cleaning component 5 is arranged at the front, the roller brush 4 is arranged in the middle, and the water cleaning component 6 is arranged at the upper rear. This allows the wind to blow away most of the dust first, the roller brush 4 to brush away stubborn dirt, and finally the water to thoroughly clean the surface of the photovoltaic panel 1. Alternatively, water can be sprayed onto the roller brush to achieve the cleaning purpose of rinsing and brushing at the same time.

[0043] The air cleaning component 5 is arranged at the front, the roller brush 4 is arranged in the middle, and the water cleaning component 6 is arranged at the upper front. This way, most of the dust can be removed by air first, most of the dirt can be removed by water rinsing, and finally the stubborn dirt can be removed by the roller brush 4.

[0044] Through the above implementation process, the cleaning device required for photovoltaic operation and maintenance scenarios can be quickly built, enabling flexible and rapid deployment for different photovoltaic arrays, different types of pollutants, and different cleaning requirements, and carrying out efficient cleaning operations. In addition, the main components of the cleaning device are made of aluminum plates, PVC materials, and thin-walled stainless steel pipes. The structural component forming process is simple and a large number of standard components are used, which makes the cleaning device have high structural strength and low manufacturing cost, laying a good foundation for large-scale deployment.

[0045] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, both the upper walking assembly 2 and the lower walking assembly 3 are further provided with a walking seat 7. The walking seat 7 includes a C-shaped plate 701, a side wheel 702 rotatably connected to the bottom wall of the C-shaped plate 701 by a pin, two wheel support plates 703 fixed on the C-shaped plate 701, a support wheel 704 rotatably connected to the wheel support plates 703 by a pin, and a side support plate 705 fixed on one side of the C-shaped plate 701. A walking motor 706 for driving the support wheel 704 to rotate is fixed on one of the wheel support plates 703 on the upper walking assembly 2.

[0046] Specifically, the C-shaped plate 701 serves as the mounting base for the walking unit, providing mounting support for the side wheels 702 and support plates. Ribs can be installed inside the C-shaped plate 701 to strengthen its structural strength. The C-shaped plate 701 and multiple support plates can be made of aluminum alloy. The roller brush 4 can limit the distance between the upper walking assembly 2 and the lower walking assembly 3. After installation, the side wheels 702 of the upper walking assembly 2 and the lower walking assembly 3 abut against the side frame of the photovoltaic panel 1, providing lateral stability support for the device. After installation, the edge of the roller brush 4 is aligned with the edge of the photovoltaic panel 1, ensuring that the roller brush 4 can brush the edge of the photovoltaic panel 1. When the walking unit is working, the walking motor 706 is controlled to run. The output shaft of the walking motor 706 drives the support wheels 704 on the wheel support plate 703 to rotate. The support wheels 704 generate friction with the surface of the photovoltaic panel 1 to move and travel. The remaining support wheels 704 of the upper walking assembly 2 and the lower walking assembly 3 automatically rotate and move.

[0047] like Figure 1 , Figure 2 and Figure 3 As shown, in a preferred embodiment, based on the above method, a first pipe clamp 7051 is fixed on the side support plate 705, and a second pipe clamp 7031 is provided on the wheel support plate 703 away from the side support plate 705 of the C-shaped plate 701. The air cleaning component 5 is connected to the first pipe clamp 7051, and the water cleaning component 6 is connected to the second pipe clamp 7031. The setting of the first pipe clamp 7051 and the second pipe clamp 7031 can, according to the needs of the scenario, install cleaning components such as the air cleaning component 5 and the water cleaning component 6 between the upper walking component 2 and the lower walking component 3, which facilitates the optimization of the cleaning scheme combination.

[0048] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the roller brush unit 4 further includes an upper support plate 401 fixed on the upper traveling assembly 2, a driven shaft 4011 rotatably connected to the upper support plate 401, a lower support plate 402 fixed on the lower traveling assembly 3, a drive shaft 4021 rotatably connected to the lower support plate 402, and a roller brush body 403 fixedly disposed between the driven shaft 4011 and the drive shaft 4021. A roller brush motor 404 for driving the drive shaft 4021 to rotate is fixed on the lower support plate 402. When the roller brush unit 4 is working, it controls the operation of the roller brush motor 404. The output shaft of the roller brush motor 404 drives the drive shaft 4021 to rotate. The drive shaft 4021 and the driven shaft 4011 can be connected to the roller brush body 403 by bolts, so that when the drive shaft 4021 rotates, it can drive the roller brush body 403 to rotate. During the rotation of the roller brush body 403, the brush bristles are used to brush away the contaminants on the surface of the photovoltaic panel 1.

[0049] likeFigure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, both the air cleaning component 5 and the water cleaning component 6 include pipes 8. The two ends of the pipe 8 of the air cleaning component 5 are fixedly connected to the first pipe clamp 7051, and the two ends of the pipe 8 of the water cleaning component 6 are fixedly connected to the second pipe clamp 7031. Both the air cleaning component 5 and the water cleaning component 6 are provided with a plurality of nozzles 9. The pipe 8 of the air cleaning component 5 is connected to a fan 10 through a connecting pipe, and the water inlet end of the pipe 8 is connected to a water supply device through a quick connector 11.

[0050] Specifically, the nozzle 9 on the air cleaning component 5 is a duckbill nozzle 9, which can form a wide and high-pressure air surface when the air is sprayed out from the nozzle, which is beneficial for removing dust and other pollutants. When the air cleaning component 5 is working, it controls the operation of the fan 10, which draws in external air and introduces the air into the pipeline 8 of the air cleaning component 5 through the connecting pipe, so that the high-pressure air is quickly discharged from the duckbill nozzle 9.

[0051] The nozzle 9 on the water cleaning component 6 is a fan-shaped nozzle 9, and the pipeline 8 is connected to the water supply equipment through the quick connector 11 to form a water supply pipeline.

[0052] It should be noted that the nozzles 9 on the pipeline 8 have a small spacing in the direction close to the lower traveling component 3, followed by a large spacing at equal intervals. The high density of water and air sprayed from the small spacing of the nozzles 9 provides a greater scrubbing force for pollutants, which is beneficial for removing pollutants accumulated on the lower part of the photovoltaic panel 1.

[0053] like Figure 1 , Figure 2 and Figure 3 As shown, in a preferred embodiment, based on the above method, the roller brush body 403 further includes a rotating tube 4031 fixedly connected to the drive shaft 4021, a rotating rod 4032 fixedly connected to the driven shaft 4011, a connecting rod 4033 respectively disposed on the rotating tube 4031 and the rotating rod 4032, and a brush plate 4034 disposed at the end of the connecting rod 4033. When the roller brush body 403 rotates, the rotating tube 4031 and the rotating rod 4032 drive the brush plate 4034 to rotate through the connecting rod 4033, so that when the brush plate 4034 rotates, the bristles installed on it brush away the contaminants on the surface of the photovoltaic panel 1. It should be noted that the bristle density on the brush plate 4034 near the lower traveling component 3 should be greater than that on other parts, so that the brushing force of the contaminants can be greater, which is beneficial to removing the contaminants accumulated on the lower part of the photovoltaic panel 1.

[0054] like Figure 5As shown, in a preferred embodiment, based on the above method, the rotating rod 4032 and the rotating tube 4031 are further slidably arranged. A guide strip 12 is fixed on the rotating rod 4032, and a guide groove 121 that cooperates with the guide strip 12 is provided on the inner wall of the rotating tube 4031. A fastening bolt 13 that is threadedly connected to the rotating rod 4032 is threadedly connected to the rotating tube 4031. Specifically, the length of the roller brush body 403 can be adjusted according to the size of the photovoltaic panel 1 being cleaned, thereby adjusting the distance between the upper walking component 2 and the lower walking component 3. The arrangement of the guide strip 12 and the guide groove 121 can effectively transmit the torque between the rotating tube 4031 and the rotating rod 4032. After the length of the roller brush body 403 is adjusted, the fastening bolt 13 is rotated relative to the rotating tube 4031 and then pressed against the rotating rod 4032 to achieve position locking between the rotating rod 4032 and the rotating tube 4031.

[0055] like Figure 5 , Figure 1 , Figure 2 and Figure 3 As shown, in a preferred embodiment, based on the above method, the pipeline 8 further includes a plurality of delivery pipes 801, a telescopic conduit 802 disposed between two adjacent delivery pipes 801, and a hinge frame 803 disposed between two adjacent delivery pipes 801. The delivery pipes 801 at both ends of the pipeline 8 are respectively connected to two first pipe clamps 7051 connected to the air cleaning component 5 or two second pipe clamps 7031 connected to the water cleaning component 6.

[0056] Furthermore, the articulated frame 803 includes a first link 8031 ​​and a second link 8032 rotatably connected by a pin, and the first link 8031 ​​and the second link 8032 are respectively rotatably connected to two adjacent conveying pipes 801.

[0057] Specifically, after the length of the roller brush body 403 is adjusted, the positions of the upper travel component 2 and the lower travel component 3 are also locked. When the distance between the upper travel component 2 and the lower travel component 3 is adjusted, the two first pipe clamps 7051 and the two second pipe clamps 7031 move closer or further apart at the same time, thereby causing the delivery pipes 801 at both ends of the pipeline 8 to move closer or further apart. Thus, under the action of the hinge frame 803, the telescopic guide tube 802 between the two adjacent delivery pipes 801 can freely extend and retract, completing the synchronous adjustment of the water cleaning component 6 and the air cleaning component 5.

[0058] like Figure 4 , Figure 5 and Figure 6 Figure 7As shown, in a preferred embodiment, based on the above method, the nozzle 9 is further rotatably connected to the conveying pipe 801 via a connecting ball head. Several nozzles 9 on the same pipe 8 are movably connected to a moving plate 14. Both the drive shaft 4021 and the driven shaft 4011 are provided with spiral guide grooves 15. A guide rod 151 is slidably connected in the spiral guide groove 15. A connecting plate 152 is provided between the guide rod 151 and the moving plate 14. When the drive shaft 4021 and the driven shaft 4011 rotate, the position of the spiral guide groove 15 changes. The spiral guide groove 15 drives the guide rod 151 to move. When the guide rod 151 moves, it drives the moving plate 14 to move axially back and forth through the connecting plate 152. The moving plate 14 drives several nozzles 9 to swing, thereby expanding the cleaning range of the nozzles 9, avoiding cleaning dead corners, and ensuring the cleaning quality of the photovoltaic panel 1.

[0059] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A combined multi-station photovoltaic cleaning device comprising a cleaning mechanism for cleaning photovoltaic panels (1), characterized in that, The cleaning mechanism comprises: A walking part, which comprises an upper walking assembly (2) and a lower walking assembly (3), and the upper walking assembly (2) and the lower walking assembly (3) are arranged on both sides of the width direction of the photovoltaic panel (1) respectively; A rolling brush part (4) is arranged between the upper walking assembly (2) and the lower walking assembly (3), and is used for removing contaminants on the photovoltaic panel (1); An auxiliary cleaning structure, which comprises a wind cleaning assembly (5) and a water cleaning assembly (6), and the wind cleaning assembly (5) and the water cleaning assembly (6) are arranged on both sides of the walking part respectively, and are used for blowing wind or spraying water to the surface of the photovoltaic panel (1); The upper walking assembly (2), the lower walking assembly (3), the wind cleaning assembly (5) and the water cleaning assembly (6) form a quadrilateral structure.

2. The combined multi-station photovoltaic cleaning device according to claim 1, characterized in that The upper walking assembly (2) and the lower walking assembly (3) are provided with a walking seat (7), the walking seat (7) comprises a C-shaped plate (701), a side wheel (702) rotatably connected to the bottom wall of the C-shaped plate (701) through a pin shaft, two wheel support plates (703) fixed on the C-shaped plate (701), a support wheel (704) rotatably connected to the wheel support plate (703) through a pin shaft, and a side support plate (705) fixed on one side of the C-shaped plate (701), and one of the wheel support plates (703) on the upper walking assembly (2) is fixed with a walking motor (706) for driving the support wheel (704) to rotate.

3. The combined multi-station photovoltaic cleaning device according to claim 2, characterized in that The side support plate (705) is fixed with a first pipe clamp (7051), and the wheel support plate (703) away from the side support plate (705) of the C-shaped plate (701) is provided with a second pipe clamp (7031), the wind cleaning assembly (5) is connected with the first pipe clamp (7051), and the water cleaning assembly (6) is connected with the second pipe clamp (7031).

4. The combined multi-station photovoltaic cleaning device according to claim 3, characterized in that The rolling brush part (4) comprises an upper support plate (401) fixed on the upper walking assembly (2), a driven shaft (4011) rotatably connected to the upper support plate (401), a lower support plate (402) fixed on the lower walking assembly (3), a driving shaft (4021) rotatably connected to the lower support plate (402), and a rolling brush body (403) fixed between the driven shaft (4011) and the driving shaft (4021), and the lower support plate (402) is fixed with a rolling brush motor (404) for driving the driving shaft (4021) to rotate.

5. A combined multi-station photovoltaic cleaning device according to claim 4, characterized in that, The wind cleaning assembly (5) and the water cleaning assembly (6) both comprise a pipeline (8), the pipeline (8) of the wind cleaning assembly (5) is fixedly connected with the first pipe clamp (7051) at both ends, the pipeline (8) of the water cleaning assembly (6) is fixedly connected with the second pipe clamp (7031) at both ends, a plurality of spray heads (9) are arranged on the pipeline (8) of the wind cleaning assembly (5) and the water cleaning assembly (6), the pipeline (8) of the wind cleaning assembly (5) is connected with a fan (10) through a connecting pipe, and the water inlet end of the pipeline (8) is externally connected with a water supply device through a quick connector (11).

6. A combined multi-station photovoltaic cleaning device according to claim 5, characterized in that, The rolling brush body (403) comprises a rotating pipe (4031) fixedly connected with the driving shaft (4021), a rotating rod (4032) fixedly connected with the driven shaft (4011), a connecting rod (4033) arranged on the rotating pipe (4031) and the rotating rod (4032) respectively, and a brush plate (4034) arranged at the end of the connecting rod (4033).

7. A combined multi-station photovoltaic cleaning device according to claim 6, characterized in that The rotating rod (4032) and the rotating pipe (4031) are slidingly arranged, a guide strip (12) is fixedly arranged on the rotating rod (4032), a guide groove (121) matched with the guide strip (12) is arranged on the inner wall of the rotating pipe (4031), and a fastening bolt (13) threadedly connected with the rotating rod (4032) is threadedly connected on the rotating pipe (4031).

8. The combined multi-station photovoltaic cleaning device according to claim 7, characterized in that The pipeline (8) comprises a plurality of conveying pipes (801), a telescopic guide pipe (802) arranged between adjacent two conveying pipes (801), and an articulated frame (803) arranged between adjacent two conveying pipes (801), and the conveying pipes (801) at both ends of the pipeline (8) are connected with two first pipe clamps (7051) connected with the air cleaning assembly (5) or two second pipe clamps (7031) connected with the water cleaning assembly (6) respectively.

9. A combined multi-station photovoltaic cleaning device according to claim 8, characterized in that, The articulated frame (803) comprises a first connecting rod (8031) and a second connecting rod (8032) rotatably connected through a pin shaft, and the first connecting rod (8031) and the second connecting rod (8032) are rotatably connected with adjacent two conveying pipes (801) respectively.

10. The combined multi-station photovoltaic cleaning device according to claim 9, characterized in that The spray head (9) is rotatably connected with the conveying pipe (801) through a connecting ball head, a plurality of spray heads (9) on the same pipeline (8) are movably connected with a moving plate (14), a spiral guide groove (15) is formed on the driving shaft (4021) and the driven shaft (4011), a guide rod (151) is slidingly connected in the spiral guide groove (15), and a connecting plate (152) is arranged between the guide rod (151) and the moving plate (14).

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