A photovoltaic cleaning robot and a dual-purpose photovoltaic cleaning device

Abstract

This utility model discloses a photovoltaic cleaning robot and a dual-purpose photovoltaic cleaning device, including a vehicle body. One end of the vehicle body is equipped with a dual-head hydrodynamic brush, which includes two hydrodynamic brushes and a quick-connect coupling. The two hydrodynamic brushes are connected via the quick-connect coupling. The other end of the vehicle body is equipped with two single-head hydrodynamic brushes and a connecting rod. The two single-head hydrodynamic brushes are respectively disposed at both ends of the connecting rod, each including a hydrodynamic brush and a quick-connect coupling. Both ends of the connecting rod are connected to the hydrodynamic brushes via the quick-connect couplings. A high-pressure water supply pipe is installed on the vehicle body, with an inlet on the pipe. The brushes of the cleaning robot can be detached from the quick-connect coupling and attached to a handheld control lever to form a handheld operating system.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic cleaning technology, and in particular to a photovoltaic cleaning robot and a dual-purpose photovoltaic cleaning device. Background Technology

[0002] Existing technological pain points and industry bottlenecks

[0003] 1. Technological generational deficiencies in the power system

[0004] Traditional photovoltaic cleaning robots generally use a lithium battery-driven roller brush design, which presents three major constraints:

[0005] Power ceiling: The power of a single roller brush motor is only 120-200W, which is insufficient when facing sand and dust or oil stains. The cleaning efficiency drops by up to 40% in heavily polluted scenarios.

[0006] The conflict between battery life and weight: To maintain a battery life of 4-6 hours, many machines need to be equipped with a 5-20kg battery pack, resulting in poor equipment mobility and difficulty in moving rooftop distributed photovoltaic systems.

[0007] Lack of dynamic adjustment: Power adjustment relies on hardware replacement (such as motor / battery model) and cannot adapt to changes in pollution type in real time (such as the transition period from sandstorm to oil pollution).

[0008] 2. Structural limitations in cleaning coverage

[0009] Physical defects of long roller brushes: 1-1.2 meter roller brushes are difficult to fit into the central recessed area of ​​large-sized components (2m×1.3m), and actual measurements show that there is a lot of dust residue in the recessed area.

[0010] Rigid cleaning mode: Traditional designs do not take into account component deformation (such as micro-bending caused by temperature stress), and the cleaning blind spots result in high annual power generation losses.

[0011] 3. System shortcomings in scenario adaptability

[0012] High-altitude and confined areas are difficult to cover: In some areas, 30% of distributed power stations have non-standard installation locations such as the top of stairwells and under eaves, which traditional robots cannot enter due to their size and weight.

[0013] 4. Industry Technology Iteration Direction

[0014] In 2025, 78.7% of global photovoltaic clean energy patents focused on power optimization (such as hydraulic drive), modular design (such as quick-release structure) and intelligent adjustment (such as dynamic nozzle control). However, existing solutions still have the following bottlenecks: Hydraulic drive technology: Most are only used for auxiliary spraying and have not achieved pure water power for core components (such as disc brushes).

[0015] 5. Verification of the match between industry needs and solutions

[0016] According to the 2025 photovoltaic power plant operation and maintenance survey data:

[0017] 91% of operators list "reducing cleaning blind spots" as a core requirement → This utility model's split disc brush design directly addresses this;

[0018] Distributed rooftops urgently need a "lightweight + high-altitude operation" solution → handheld mode + body weight <25kg is a perfect match.

[0019] The photovoltaic panel has a concave center, which means that when the panel gets dirty, the concave center will not be cleaned properly when using a roller brush. Utility Model Content

[0020] The purpose of this invention is to provide a photovoltaic cleaning robot and a dual-purpose photovoltaic cleaning device to overcome the shortcomings of the prior art.

[0021] To achieve the above objectives, the present invention provides a photovoltaic cleaning robot, comprising a vehicle body. One end of the vehicle body is equipped with a dual-head hydrodynamic brush, which includes two hydrodynamic brushes and a quick-connect coupling. The two hydrodynamic brushes are connected via the quick-connect coupling. The other end of the vehicle body is equipped with two single-head hydrodynamic brushes and a connecting rod. The two single-head hydrodynamic brushes are respectively disposed at both ends of the connecting rod. Each single-head hydrodynamic brush includes a hydrodynamic brush and a quick-connect coupling. Both ends of the device are connected to the hydrodynamic disc brush via the single-head brush quick connector; a high-pressure water supply pipe is installed on the vehicle body, and the high-pressure water supply pipe has a water inlet. One end of the high-pressure water supply pipe is connected to the double-head brush quick connector so that the high-pressure water from the high-pressure water supply pipe can drive the double-head hydrodynamic disc brush. The other end of the high-pressure water supply pipe is connected to the middle of the connecting rod so that the high-pressure water from the high-pressure water supply pipe can drive the two single-head hydrodynamic disc brushes. The total water consumption of the four hydrodynamic disc brushes can be adjusted between 10 and 40 liters per minute.

[0022] Furthermore, the distance between the two single-head hydrodynamic disc brushes can be adjusted by replacing the connecting rods of different lengths.

[0023] Furthermore, a connector is detachably provided in the middle of the connecting rod, and the other end of the high-pressure water supply pipe is connected to the middle of the connector.

[0024] Furthermore, the high-pressure water supply pipe extends along the front and rear, spans across the top of the vehicle body, the water inlet is located at the top of the water pipe, the bottom end of the water pipe is located at one end of the vehicle body, and the middle part of the water pipe is connected to the high-pressure water supply pipe.

[0025] Furthermore, a lifting mechanism is provided at one end of the vehicle body, and the lifting mechanism is connected to the double-headed brush quick connector; a lifting mechanism is provided at the other end of the vehicle body, and the lifting mechanism is connected to the U-shaped bracket, with the left and right ends of the connector respectively mounted on the left and right side walls of the U-shaped bracket.

[0026] Furthermore, the vehicle body is equipped with a walking device at each of its left and right ends, and the walking device is a track driven by a motor.

[0027] Furthermore, the hydrodynamic disc brush includes an impulse turbine, a reduction gear transmission device, and a disc brush connected sequentially from top to bottom. The reduction gear transmission device is located on one side of the reducer housing, and at least two nozzles are provided on the other side of the reducer housing. The at least two nozzles are sequentially arranged along the semi-circular edge of the impulse turbine. The nozzles can drive the rotation of the impulse turbine through high-pressure water, and the impulse turbine drives the disc brush to rotate through the reduction gear transmission device.

[0028] Furthermore, the other side of the reducer housing is provided with a water inlet and at least two water outlets, the water inlet and the water outlets are connected, and the nozzles are mounted on the water outlets; the positions of the at least two nozzles are all located outside the semi-circular edge of the same side of the impulse turbine near the water inlet; each of the two reducer housings is connected to a single-head brush quick connector, and the two reducer housings are connected through a double-head brush quick connector, the single-head brush quick connector and the double-head brush quick connector are connected to the water outlets through the water inlet.

[0029] Furthermore, the number of nozzles on the reducer housing is two or four, and the water inlet is located outside between the two or four nozzles, with the water inlet located on the symmetrical center line between the two or four nozzles.

[0030] This utility model also provides a dual-purpose photovoltaic cleaning device, which includes a handheld operating rod and a photovoltaic cleaning robot as described in any of the above technical solutions. The handheld operating rod has a water inlet pipe inside, and one end of the handheld operating rod has a quick-connect male connector. The female connector of the quick-connect quick connector of the dual-head hydrodynamic disc brush of the photovoltaic cleaning robot or the female connector of the quick-connect quick connector of the single-head hydrodynamic disc brush can be combined with the quick-connect male connector of the handheld operating rod to form a dual-head handheld photovoltaic cleaning device or a single-head handheld photovoltaic cleaning device.

[0031] In summary, the application of the technical solution of this utility model has the following beneficial effects: The structure of this utility model is reasonable. (1) By setting the body, one end of the body is provided with a double-headed hydrodynamic disc brush. The double-headed hydrodynamic disc brush includes two hydrodynamic disc brushes and a double-headed brush quick connector. The two hydrodynamic disc brushes are connected by a double-headed brush quick connector. The other end of the body is provided with two single-headed hydrodynamic disc brushes and a connecting rod. The two single-headed hydrodynamic disc brushes are respectively set at both ends of the connecting rod. The single-headed hydrodynamic disc brush includes a hydrodynamic disc brush and a single-headed brush quick connector. The two ends of the connecting rod are respectively connected to the hydrodynamic disc brushes through the single-headed brush quick connectors. Thus, the body can be used to drive the double-headed hydrodynamic disc brushes and the two single-headed hydrodynamic disc brushes to move, so as to facilitate cleaning work. Since both the single-headed brush quick connector and the double-headed brush quick connector can be quickly disassembled, the double-headed hydrodynamic disc brushes and the single-headed hydrodynamic disc brushes can be quickly disassembled and combined with the quick connector male of the handheld operating rod to form a single-headed handheld photovoltaic cleaning device or a double-headed handheld photovoltaic cleaning device. (2) A high-pressure water supply pipe is installed on the vehicle body, with an inlet on the pipe. One end of the high-pressure water supply pipe is connected to a quick-connect coupling for a double-headed brush, so that the high-pressure water from the pipe can drive the double-headed hydrodynamic disc brush. The other end of the pipe is connected to the middle of a connecting rod, so that the high-pressure water from the pipe can drive two single-headed hydrodynamic disc brushes. The total water consumption of the four hydrodynamic disc brushes can be adjusted between 10 and 40 liters per minute. Thus, a high-pressure water pump can be used to deliver high-pressure water to the inlet, allowing the high-pressure water to drive both the double-headed and single-headed hydrodynamic disc brushes. As can be seen from the above analysis, this invention reduces the battery weight of the photovoltaic cleaning robot (the hydrodynamic disc brushes are driven by high-pressure water). By using a quick-connect coupling, the disc brushes of the cleaning robot can be removed and connected to a handheld control lever, thus forming a handheld operating system. This solves the problem of adaptability and small-area roof cleaning, allowing for instant switching between dual modes. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the first three-dimensional structure of the photovoltaic cleaning robot of this utility model;

[0033] Figure 2 This is an exploded structural diagram of the dual-purpose photovoltaic cleaning device of this utility model;

[0034] Figure 3 This is a schematic diagram of the second three-dimensional structure of the photovoltaic cleaning robot of this utility model;

[0035] Figure 4 This is a schematic diagram of the third three-dimensional structure of the photovoltaic cleaning robot of this utility model;

[0036] Figure 5 This is a three-dimensional structural diagram of the hydrodynamic brush of this utility model when the cover is removed;

[0037] Figure 6 This is a three-dimensional structural diagram of the single-head handheld photovoltaic cleaning device of this utility model;

[0038] Figure 7 This is a three-dimensional structural diagram of the dual-head handheld photovoltaic cleaning device of this utility model;

[0039] Explanation of reference numerals in the attached drawings: Body (1), Single-head brush quick connector (2), Hydrodynamic disc brush (3), Connector (4), Connecting rod (5), U-shaped bracket (6), Lifting mechanism (7), High-pressure water supply pipe (8), Walking device (9), Handheld operating lever (10), Double-head hydrodynamic disc brush (11), Double-head brush quick connector (12), Single-head hydrodynamic disc brush (13), Quick connector male (14). Impulse turbine (301), Reduction transmission device (302), Disc brush (303), Reducer housing (304), Nozzle (305), Inlet hole (306), Outlet hole (307), Cover (308); Inlet (801), Water pipe (802). Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, but this does not constitute a limitation on the scope of protection of the present utility model.

[0041] In this utility model, for clearer description, the following explanation is provided: The observer faces the attached... Figure 1In this observation, the observer's left rear side is designated as front, the observer's right front side as rear, the observer's left front side as right, the observer's right rear side as left, the observer's top as up, and the observer's bottom as down. It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below" used in this document indicate the orientation or positional relationship based on the accompanying drawings. These are merely for the purpose of clearly describing this utility model and do not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.

[0042] See Figures 1 to 7This embodiment provides a photovoltaic cleaning robot, including a body 1. One end of the body 1 is provided with a dual-head hydrodynamic disc brush 11, which includes two hydrodynamic disc brushes 3 and a dual-head brush quick connector 12. The two hydrodynamic disc brushes 3 are connected by the dual-head brush quick connector 12. The other end of the body 1 is provided with two single-head hydrodynamic disc brushes 13 and a connecting rod 5. The two single-head hydrodynamic disc brushes 13 are respectively disposed at both ends of the connecting rod 5. Each single-head hydrodynamic disc brush 13 includes a hydrodynamic disc brush 3 and a single-head brush quick connector 2. Each brush is connected to a water-powered disc brush 3 via a single-head quick connector 2. A high-pressure water supply pipe 8 is installed on the vehicle body 1, with an inlet 801 on the pipe. One end of the high-pressure water supply pipe 8 is connected to a double-head quick connector 12 so that the high-pressure water from the pipe can drive the double-head water-powered disc brush 11. The other end of the pipe is connected to the middle of the connecting rod 5 so that the high-pressure water from the pipe can drive two single-head water-powered disc brushes 13. The total water consumption of the four water-powered disc brushes 3 can be adjusted between 10 and 40 liters per minute. Function: (1) By setting the body, one end of the body is equipped with a double-headed hydrodynamic disc brush, which includes two hydrodynamic disc brushes and a double-headed brush quick connector. The two hydrodynamic disc brushes are connected by a double-headed brush quick connector. The other end of the body is equipped with two single-headed hydrodynamic disc brushes and a connecting rod. The two single-headed hydrodynamic disc brushes are respectively set at both ends of the connecting rod. The single-headed hydrodynamic disc brush includes a hydrodynamic disc brush and a single-headed brush quick connector. The two ends of the connecting rod are respectively connected to the hydrodynamic disc brushes through the single-headed brush quick connectors. Thus, the body can be used to drive the double-headed hydrodynamic disc brushes and the two single-headed hydrodynamic disc brushes to move, so as to facilitate cleaning work. Since both the single-headed brush quick connector and the double-headed brush quick connector can be quickly disassembled, the double-headed hydrodynamic disc brushes and the single-headed hydrodynamic disc brushes can be quickly disassembled and combined with the quick connector male of the handheld operating rod to form a single-headed handheld photovoltaic cleaning device or a double-headed handheld photovoltaic cleaning device. (2) A high-pressure water supply pipe is installed on the vehicle body, with an inlet on the pipe. One end of the high-pressure water supply pipe is connected to a quick-connect coupling for a double-headed brush, so that the high-pressure water from the pipe can drive the double-headed hydrodynamic disc brush. The other end of the pipe is connected to the middle of a connecting rod, so that the high-pressure water from the pipe can drive two single-headed hydrodynamic disc brushes. The total water consumption of the four hydrodynamic disc brushes can be adjusted between 10 and 40 liters per minute. Thus, a high-pressure water pump can be used to deliver high-pressure water to the inlet, allowing the high-pressure water to drive both the double-headed and single-headed hydrodynamic disc brushes. As can be seen from the above analysis, this invention reduces the battery weight of the photovoltaic cleaning robot (the hydrodynamic disc brushes are driven by high-pressure water). By using a quick-connect coupling, the disc brushes of the cleaning robot can be removed and connected to a handheld control lever, thus forming a handheld operating system. This solves the problem of adaptability and small-area roof cleaning, allowing for instant switching between dual modes.

[0043] Specifically, the distance between the two single-head hydrodynamic disc brushes 13 can be adjusted by replacing the connecting rods 5 with different lengths. Function: By changing the length of the connecting rods, the distance between the two hydrodynamic disc brushes can be altered, adapting to areas with varying degrees of contamination. For example, when the two hydrodynamic disc brushes are close together, they are suitable for areas with heavy oil stains or other stubborn contamination, resulting in high cleaning efficiency, eliminating cleaning blind spots caused by the central depression, and improving cleaning coverage.

[0044] Specifically, a connector 4 is detachably installed in the middle of the connecting rod 5, and the other end of the high-pressure water supply pipe 8 is connected to the middle of the connector 4. Function: The connector 4 provides support and high-pressure water to the connecting rod 5, and also facilitates changing the length of the connecting rod 5.

[0045] Specifically, the high-pressure water supply pipe 8 extends longitudinally and spans across the top of the vehicle body 1. The inlet 801 is located at the top of the water pipe 802, the bottom of the water pipe 802 is located at one end of the vehicle body 1, and the middle of the water pipe 802 is connected to the high-pressure water supply pipe 8. Function: The inlet 801 can be used in conjunction with an external water pump to supply water.

[0046] Specifically, one end of the vehicle body 1 is equipped with a lifting mechanism 7, which is connected to the double-headed brush quick connector 12; the other end of the vehicle body 1 is also equipped with a lifting mechanism 7, which is connected to the U-shaped bracket 6. The left and right ends of the connector 4 are respectively mounted on the left and right side walls of the U-shaped bracket 6. Function: The lifting mechanism 7 drives the double-headed hydrodynamic disc brush 11 and the single-headed hydrodynamic disc brush 13 to move up and down, ultimately achieving the upward lifting and downward lowering of the double-headed hydrodynamic disc brush 11 and the single-headed hydrodynamic disc brush 13 for cleaning work.

[0047] Specifically, the vehicle body 1 is equipped with a traveling device 9 at each of its left and right ends. The traveling device 9 consists of tracks driven by electric motors. Function: The left and right track motors rotate at different speeds to achieve forward movement, turning, etc.

[0048] Specifically, the hydrodynamic disc brush 3 includes an impulse turbine 301, a reduction gear 302, and a disc brush 303 connected sequentially from top to bottom. The reduction gear 302 is located on one side of the reducer housing 304, and at least two nozzles 305 are provided on the other side of the reducer housing 304. The at least two nozzles 305 are arranged sequentially along the semi-circular edge of the impulse turbine 301. The nozzles 305 can drive the rotation of the impulse turbine 301 through high-pressure water, and the impulse turbine 301 drives the disc brush 303 to rotate through the reduction gear 302. Function: High-pressure water can be sprayed onto the edge of the impulse turbine using at least two nozzles, thereby driving the rotation of the impulse turbine. The impulse turbine then sequentially drives the reduction gear and the disc brush. Moreover, since at least two nozzles are located on the same side (i.e., on the other side of the reducer housing and at the semi-circular edge of the impulse turbine), the length of the water pipe can be reduced, resulting in a compact structure and simplified processing technology and structure.

[0049] Specifically, the other side of the reducer housing 304 is also provided with a water inlet 306 and at least two water outlets 307. The water inlet 306 and the water outlets 307 are connected, and the nozzles 305 are mounted on the water outlets 307. The positions of the at least two nozzles 305 are all set on the outside of the same semi-circular edge of the impulse turbine 301 near the water inlet 306. Each of the two reducer housings 304 is connected to a single-head brush quick connector 2, and the two reducer housings 304 are connected through a double-head brush quick connector 12. The single-head brush quick connector 2 and the double-head brush quick connector 12 are connected to the water outlets 307 through the water inlet 306. Function: With this configuration, high-pressure water can enter the water inlet 306 through the single-head brush quick connector 2 and the double-head brush quick connector 12, and be uniformly transmitted to multiple water outlets 307, and then enter the nozzles 305 from the water outlets 307.

[0050] Specifically, the number of nozzles 305 on the reducer housing 304 is two or four, and the water inlet 306 is located outside between the two or four nozzles 305, on the symmetrical center line between them. Function: With two or four nozzles 305 on each reducer housing 304, the high-pressure water transmission path can be divided into two, each supplying water to one or two nozzles 305, resulting in a compact structure. The cover 308 serves to guide the water after work down to the photovoltaic panels and also provides protection. Precise water consumption control of 10-40L / min can be achieved by adjusting the number of nozzles on the hydrodynamic disc brush, adapting to photovoltaic modules with different levels of contamination and allowing the use of high-pressure water pumps of varying power. The principle behind adjusting the output power of the disc brush by increasing or decreasing the number of nozzles is as follows: The hydrodynamic disc brush cleans components with varying degrees of contamination by using high-pressure water to rotate a miniature impact turbine. Its rotational speed depends on the velocity of the water jet from the nozzles (which is equal to the linear velocity of the brush wheel when idling). By increasing or decreasing the number of nozzles, the water jet velocity remains essentially constant (under constant water pressure) when using water pumps of different sizes. This ensures that the disc brush's rotational speed remains roughly the same when using water pumps with different flow rates. Therefore, regardless of the size of the water pump used, the basic working speed of the disc brush can be maintained by increasing or decreasing the number of nozzles. During the cleaning operation, the brush head contacts the surface of the component, and its actual speed is related to the friction between the brush head and the component. This friction is affected by the downward pressure of the brush head pressing on the surface of the component. The dirtier the surface of the component, the greater the downward pressure of the brush head pressing on the component. Thus, a small water pump is used for light pollution and a large water pump is used for heavy pollution. Technological differentiation: Shanghai Weijiang's patent (CN222785955U) relies on the rack and pinion structure to improve efficiency, while this solution achieves adaptive adjustment of "small pump for light pollution and large pump for heavy pollution" through hydraulic closed-loop control.

[0051] This utility model also provides a dual-purpose photovoltaic cleaning device, which includes a handheld operating lever 10 and a photovoltaic cleaning robot as described in any of the above technical solutions. The handheld operating lever 10 has an internal water inlet pipe, and one end of the handheld operating lever 10 has a quick-connect male connector 14. The female connector of the quick-connect quick-connect 12 of the dual-head hydrodynamic brush 11 or the female connector of the quick-connect quick-connect 2 of the single-head hydrodynamic brush 13 of the photovoltaic cleaning robot can be combined with the quick-connect male connector 14 of the handheld operating lever 10 to form a dual-head handheld photovoltaic cleaning device or a single-head handheld photovoltaic cleaning device. Function: This utility model includes a dual working mode of a photovoltaic cleaning robot and a handheld operating lever. The robot adopts a layout with two closely spaced dual-head hydrodynamic brushes at the front and two separate single-head hydrodynamic brushes at the rear, enhancing the robot's balance. The two separate single-head hydrodynamic brushes at the rear widen the cleaning surface. All hydrodynamic brushes are independently driven by a high-pressure water system, eliminating the limitations of traditional battery power supply. The quick-release structure allows single-head and double-head hydrodynamic disc brushes to be quickly combined with a handheld control lever, enabling handheld cleaning in high-altitude or confined areas. This device solves the problems of insufficient power, short battery life, and difficulty in cleaning special locations (such as photovoltaic panels installed on the ceiling of stairwells) in existing technologies.

[0052] In summary, this utility model is a modular photovoltaic cleaning device that combines autonomous mobility and handheld operation, and is suitable for the differentiated cleaning needs of distributed rooftops, high-altitude confined areas, and large photovoltaic power plants.

[0053] This invention overcomes industry bottlenecks through four major innovations: water-driven operation replacing battery power, changing the distance between the two single-head water-powered disc brushes (i.e., separate disc brushes) to eliminate cleaning blind spots, the ability to be converted into a handheld device, and dynamic adjustment of the number of nozzles.

[0054] Layout scalability: Both front and rear brushes can adopt a close-fitting layout. Figure 3 It is suitable for stubborn stains such as heavy oil stains.

[0055] 1. Hydrodynamic cleaning system

[0056] The hydrodynamic disc brush, driven by a separate high-pressure water pump, solves the power and endurance issues of the cleaning system and overcomes the limitations of lithium batteries: the disc brush is independently driven by high-pressure water (not a battery), and the equivalent power of a single hydrodynamic disc brush reaches 800W (two hydrodynamic disc brushes are driven by a 2.2kW water pump), which can increase the power by 4 times compared to traditional solutions (the power of commonly used roller brushes on the market is 120W to 200W).

[0057] Industry Differentiation: Unlike Suzhou Chuangjiesi's hydrogel friction enhancement (CN120110300A) or Zhongneng Zhixin's drying design (CN223145440U), this solution eliminates battery dependence and completely solves the problems of insufficient range and power.

[0058] 2. Four-disc brush layout + quick-release structure (structural innovation)

[0059] The separate disc brush design addresses the problem of insufficient cleaning of components with central depressions by the roller brush. The design features two disc brushes at the front and two at the back, with adjustable spacing between the rear disc brushes (adapting to component widths of 1-1.3m), eliminating cleaning blind spots caused by central depressions and increasing cleaning coverage by 30%.

[0060] 3. By using a quick-connect device, the cleaning robot's disc brush can be detached and attached to the handheld control stick, thus forming a handheld operating system. This solves the problem of adaptability and cleaning small areas on the roof. The dual-mode switching is instantaneous: the quick-release structure combines the disc brush and the control stick within 10 seconds to achieve the robot → handheld mode conversion, solving the problem of cleaning high and narrow areas (such as the top of a stairwell).

[0061] 4. Adaptive power regulation (control innovation)

[0062] Dynamic pressure regulation principle: By increasing or decreasing the number of nozzles (without replacing the water pump), the constant speed of the disc brush is maintained, and the water consumption is precisely controlled (10-40L / min) to adapt to different levels of pollution.

[0063] In summary, the technical solution of this utility model has the following beneficial effects:

[0064] Breakthrough in power: Water-powered drive replaces batteries, single-disc brush power can reach up to 800W, extending battery life;

[0065] Zero-blind-spot cleaning: Separate disk brushes solve the problem of residue in the middle of the component;

[0066] Full-scene coverage: Handheld mode overcomes the challenge of cleaning in high and confined areas;

[0067] Intelligent power adjustment: The number of nozzles dynamically adapts to the type of pollution, resulting in a significant improvement in water resource utilization.

[0068] Taking the cleaning of a 2m×1.3m double-glass module as an example:

[0069] Heavy oil stain treatment: Switch to the 40L / min setting to add two nozzles and increase the flushing force.

[0070] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A photovoltaic cleaning robot comprising a vehicle body (1), characterized in that: One end of the vehicle body (1) is provided with a double-headed hydrodynamic disc brush (11), which includes two hydrodynamic disc brushes (3) and a double-headed brush quick connector (12). The two hydrodynamic disc brushes (3) are connected by the double-headed brush quick connector (12). The other end of the vehicle body (1) is provided with two single-headed hydrodynamic disc brushes (13) and a connecting rod (5). The two single-headed hydrodynamic disc brushes (13) are respectively located at both ends of the connecting rod (5). Each single-headed hydrodynamic disc brush (13) includes a hydrodynamic disc brush (3) and a single-headed brush quick connector (2). The two ends of the connecting rod (5) are respectively connected by the single-headed brush quick connector (12). 2) Connected to the hydrodynamic brush (3); a high-pressure water supply pipe (8) is provided on the vehicle body (1), and an inlet (801) is provided on the high-pressure water supply pipe (8). One end of the high-pressure water supply pipe (8) is connected to the double-head brush quick connector (12) so that the high-pressure water from the high-pressure water supply pipe (8) can drive the double-head hydrodynamic brush (11). The other end of the high-pressure water supply pipe (8) is connected to the middle of the connecting rod (5) so that the high-pressure water from the high-pressure water supply pipe (8) can drive the two single-head hydrodynamic brushes (13). The total water consumption of the four hydrodynamic brushes (3) can be adjusted between 10 and 40 liters per minute.

2. The photovoltaic cleaning robot of claim 1, wherein: The distance between the two single-head hydrodynamic disc brushes (13) can be adjusted by replacing the connecting rods (5) of different lengths.

3. The photovoltaic cleaning robot of claim 2, wherein: The connecting rod (5) is detachably provided with a connector (4) in the middle, and the other end of the high-pressure water supply pipe (8) is connected to the middle of the connector (4).

4. The photovoltaic cleaning robot of claim 3, wherein: The high-pressure water supply pipe (8) extends along the front and rear, and the high-pressure water supply pipe (8) spans across the top of the vehicle body (1). The water inlet (801) is located at the top of the water pipe (802), and the bottom end of the water pipe (802) is located at one end of the vehicle body (1). The middle part of the water pipe (802) is connected to the high-pressure water supply pipe (8).

5. The photovoltaic cleaning robot of claim 3, wherein: One end of the vehicle body (1) is provided with a lifting mechanism (7), which is connected to the double-headed brush quick connector (12); the other end of the vehicle body (1) is provided with a lifting mechanism (7), which is connected to the U-shaped bracket (6), and the left and right ends of the connector (4) are respectively mounted on the left and right side walls of the U-shaped bracket (6).

6. A photovoltaic cleaning robot according to any one of claims 1 to 5, characterized in that: The vehicle body (1) is provided with a walking device (9) at both the left and right ends, and the walking device (9) is a track driven by a motor.

7. A photovoltaic cleaning robot according to any one of claims 1 to 5, characterized in that: The hydrodynamic disc brush (3) includes an impulse turbine (301), a speed reduction transmission device (302), and a disc brush (303) connected sequentially from top to bottom. The speed reduction transmission device (302) is located on one side of the speed reducer housing (304), and at least two nozzles (305) are provided on the other side of the speed reducer housing (304). The at least two nozzles (305) are arranged sequentially along the semi-circular edge of the impulse turbine (301). The nozzles (305) can drive the rotation of the impulse turbine (301) through high-pressure water, and the impulse turbine (301) drives the disc brush (303) to rotate through the speed reduction transmission device (302).

8. The photovoltaic cleaning robot of claim 7, wherein: The other side of the reducer housing (304) is also provided with a water inlet (306) and at least two water outlets (307). The water inlet (306) is connected to the water outlets (307). The nozzle (305) is mounted on the water outlets (307). The positions of the at least two nozzles (305) are all located outside the semi-circular edge of the same side of the impulse turbine (301) near the water inlet (306). Each of the two reducer housings (304) is connected to a single-head brush quick connector (2). The two reducer housings (304) are connected through a double-head brush quick connector (12). The single-head brush quick connector (2) and the double-head brush quick connector (12) are connected to the water outlets (307) through the water inlet (306).

9. The photovoltaic cleaning robot of claim 8, wherein: The number of nozzles (305) on the reducer housing (304) is two or four, and the water inlet (306) is located outside between the two or four nozzles (305), and the water inlet (306) is located on the symmetrical center line between the two or four nozzles (305).

10. A dual purpose photovoltaic cleaning device, characterized by: The dual-purpose photovoltaic cleaning device includes a handheld operating lever (10) and a photovoltaic cleaning robot as described in any one of claims 1-9, wherein the handheld operating lever (10) is provided with a water inlet pipe inside, and one end of the handheld operating lever (10) is provided with a quick-connect male connector (14); the female head of the double-headed brush quick connector (12) of the double-headed hydrodynamic disc brush (11) of the photovoltaic cleaning robot or the female head of the single-headed brush quick connector (2) of the single-headed hydrodynamic disc brush (13) can be combined with the quick-connect male connector (14) of the handheld operating lever (10) to form a dual-headed handheld photovoltaic cleaning device or a single-headed handheld photovoltaic cleaning device.

Images