A plant protection unmanned plane washes the washing structure of the photovoltaic power station
By modifying the flushing structure of agricultural drones, the nozzle angle and water flow intensity can be flexibly adjusted, solving the problem of low cleaning efficiency of existing drones and improving the cleaning effect of photovoltaic power stations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 上海尤汶新能源有限公司
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-26
Smart Images

Figure CN224409611U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a washing structure for a plant protection UAV that is modified into a photovoltaic power station washing UAV. Background Technology
[0002] With the development of photovoltaic (PV) construction, the demand for PV system cleaning is constantly increasing. There are various methods for cleaning PV systems, including manual cleaning, automated robotic cleaning, and drone cleaning. Agricultural drones, as a successful example of drone technology application in agriculture, have many advantages such as flexibility, efficiency, and the ability to operate at low altitudes. By specifically modifying agricultural drones to adapt them to the cleaning work of PV power plants, a new and promising solution is provided for solving the cleaning challenges of PV power plants.
[0003] Among existing cleaning methods, drone cleaning is a new type of cleaning method that is more flexible in adapting to different scenarios, simple to operate, and highly efficient. However, drones are expensive, and drones in different fields are highly specialized. For example, drones in the agricultural field can only perform agricultural functions such as spraying pesticides and fertilizers. Agricultural drones also have certain time limitations. For example, there is little demand for pesticide spraying and fertilization in the winter in northern regions. At the same time, different professional fields have different requirements for the effectiveness of the operation. For example, although pesticide spraying nozzles can replace pesticides with water for cleaning, the intensity and angle of the water flow are difficult to meet the needs of the photovoltaic industry for cleaning photovoltaic panels.
[0004] Existing agricultural drones can usually only spray pesticides and fertilizers, which is a single function and easily leads to idle equipment. Conventional agricultural drones have fixed nozzle angles and limited water flow intensity, which affects the efficiency and quality of agricultural drones in cleaning photovoltaic panels. Utility Model Content
[0005] To overcome the problem that existing agricultural drones can only spray pesticides and fertilizers, which is a single function and easily leads to idle equipment, and that the fixed nozzle angle and limited water flow intensity of conventional agricultural drones affect the cleaning efficiency and quality of agricultural drones for photovoltaic panels.
[0006] The technical solution of this utility model is as follows: a washing structure for a photovoltaic power station washing drone modified from a plant protection drone, including a mounting base, with propeller blades rotatably connected to the four corners of the mounting base, a mounting frame fixed at the bottom of the mounting base, a water tank snapped into the middle of the mounting frame, two sets of support seats fixed at the bottom of the mounting frame, and a crank arm connecting rod rotatably connected to the side wall of each of the two sets of support seats, with a connecting pipe inserted into the end of each crank arm connecting rod, an electric push rod fixed in the middle of the bottom of the mounting frame, a first connecting rod fixed at the output end of the electric push rod, a second connecting rod rotatably connected to both ends of the first connecting rod, and a third connecting rod rotatably connected to the other end of each second connecting rod, with several pagoda connectors inserted into the bottom of the connecting pipe, and nozzles inserted into the ends of each pagoda connector.
[0007] Furthermore, both crank arm connecting rods are symmetrically distributed in a U-shape, and the other ends of the two third connecting rods are fixed in the middle of the side wall of the crank arm connecting rod, which improves the rotational stability of the crank arm connecting rod.
[0008] Furthermore, the two sets of support seats are symmetrically distributed, and support plates are fixed on the inner sidewalls of the support seats, which improves the overall stability of the support seats.
[0009] Furthermore, two water pumps are fixed at the top of the support plate, with a first pipe connected to the input end of each water pump and a second pipe connected to the output end of each water pump.
[0010] Furthermore, the other end of the first pipe is inserted into the bottom of the water tank, and the other end of the second pipe is inserted into the top of the connecting pipe.
[0011] Furthermore, a water inlet is inserted into the end of the water tank, and an end cap is threaded onto the top of the water inlet.
[0012] Furthermore, a camera is rotatably connected to the side wall of the mounting base away from the water inlet.
[0013] Furthermore, the four sets of propeller blades are symmetrically distributed.
[0014] The beneficial effects of this utility model are:
[0015] Compared to the traditional washing structure of photovoltaic power station washing drones, this new design improves the stability of the connecting pipe's rotation through the cooperation of the support base, the curved arm connecting rod, and the connecting pipe. The propeller blades, nozzles, and pagoda connector enhance the ease of nozzle replacement and disassembly. Activating the electric actuator drives the first connecting rod to move vertically, and the second and third connecting rods work together to drive the curved arm connecting rod to rotate synchronously, thus improving the ease of nozzle angle adjustment and expanding the spraying range. This ultimately improves the washing efficiency and quality of the agricultural drone converted into a photovoltaic power station washing drone. Attached Figure Description
[0016] Figure 1The diagram shown is an overall structural design of the photovoltaic power station washing drone of this utility model. Figure 1 ;
[0017] Figure 2 The diagram shown is a schematic representation of the overall structure of this utility model. Figure 2 ;
[0018] Figure 3 The diagram shown is a schematic representation of the overall structure of this utility model. Figure 3 ;
[0019] Figure 4 The diagram shown is a schematic representation of the support structure of this utility model.
[0020] Figure 5 The diagram shown is a schematic representation of the rotating rod structure of this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Mounting base; 2. Mounting bracket; 3. Support base; 4. Crank arm connecting rod; 5. Water tank; 6. Connecting pipe; 7. Camera; 8. Propeller blade; 9. Water inlet; 10. Support plate; 11. Water pump; 12. First pipe; 13. Electric actuator; 14. First connecting rod; 15. Second connecting rod; 16. Third connecting rod; 17. Second pipe; 18. Nozzle; 19. Pagoda connector; 20. End cap. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Among the currently discovered feasible technologies, the following are described:
[0024] Against the backdrop of the global push for clean energy development, photovoltaic power generation, as an important renewable energy utilization method, has been widely applied and developed rapidly. With the continuous expansion of the scale of photovoltaic power plants, how to clean and maintain photovoltaic panels efficiently, economically and safely has become a key issue to ensure the stable operation of photovoltaic power plants and improve power generation efficiency. Traditional manual cleaning methods are not only inefficient and costly, but also pose certain safety risks, making it difficult to meet the operation and maintenance needs of large-scale photovoltaic power plants.
[0025] Dust accumulation on the surface of photovoltaic (PV) panels is a common and significant problem. During the daily operation of PV power plants, which are typically located in open outdoor environments, dust, sand, and other impurities continuously settle on the panel surface. These dust particles block some sunlight from reaching the photovoltaic conversion layer, thus reducing the amount of solar energy absorbed by the panels. Studies show that even a small amount of dust accumulation can lead to a noticeable decrease in the power generation efficiency of PV panels. When dust accumulates to a certain level, the resulting loss of efficiency undoubtedly has a serious negative impact on the overall power generation and economic benefits of the PV power plant.
[0026] Flight Platform: The flight platforms for agricultural drones mainly include fixed-wing aircraft, helicopters, and multi-rotor aircraft. Among them, multi-rotor aircraft are the most widely used in the field of agricultural protection due to their good stability, flexible maneuverability, and vertical takeoff and landing capabilities. Multi-rotor aircraft typically consist of multiple motors, propellers, a frame, and an electronic speed controller. The motors provide rotational power to the propellers, generating lift and enabling the drone to fly stably in the air. The frame supports and fixes the various components, ensuring the structural integrity of the drone.
[0027] Navigation and Flight Control System: The navigation and flight control system is one of the core components of agricultural drones. It is responsible for achieving stable flight and precise control of the drone. This system generally includes an inertial navigation system, which uses sensors such as accelerometers, gyroscopes, and magnetometers to measure the drone's acceleration, angular velocity, and magnetic field strength in real time, thereby calculating the drone's attitude and position changes. The global positioning system provides the drone with accurate geographical location information, enabling it to fly along a preset route. In addition, it is equipped with various attitude sensors to monitor the drone's flight attitude in real time, ensuring its stability during flight.
[0028] Spraying System: The spraying system is a key device for agricultural drones to perform plant protection tasks. It mainly consists of components such as a pesticide tank, a water pump, nozzles, and pipelines. The pesticide tank is used to store pesticide or fertilizer solutions, while the water pump is responsible for drawing liquid from the tank and delivering it to the nozzles through pipelines. The nozzles spray the liquid onto the crops at specific pressures and spray patterns according to different operational needs, so as to achieve functions such as pest and disease control or fertilization.
[0029] When agricultural drones are spraying, operators control the drones to fly to the target area via a ground remote control or a pre-set flight program. Once the drones reach the designated location, the water pump starts, extracts and pressurizes the liquid in the tank, and delivers it to the nozzles through pipelines. The nozzles then spray the liquid evenly onto the crops in the form of a mist or a column, according to their designed spray pattern.
[0030] Agricultural drones mainly operate in open spaces such as farmland, requiring them to fly over large areas of farmland along planned routes to complete spraying tasks. Similarly, photovoltaic power stations are usually located in open areas, such as deserts, hillsides, and rooftops of large industrial parks. This provides a suitable flight space for modified drones, allowing them to fly freely over photovoltaic power stations and clean the photovoltaic panels according to preset cleaning paths.
[0031] Please refer to Figures 1-5A plant protection drone was modified to serve as a washing structure for a photovoltaic power station washing drone. The structure includes a mounting base 1, with propeller blades 8 rotatably connected to each of the four corners of the mounting base 1. The four sets of propeller blades 8 are symmetrically distributed and provide lift via a motor. A mounting frame 2 is welded to the bottom of the mounting base 1, and a water tank 5 is snapped into the middle of the mounting frame 2 for water storage. Two sets of support seats 3 are welded to the bottom of the mounting frame 2 for landing support. Each set of support seats 3 has a rotatably connected side wall. The two crank arm connecting rods 4 are symmetrically distributed in a U-shape, and each end of the crank arm connecting rod 4 is connected to a connecting pipe 6. An electric actuator 13 is fixed in the middle of the bottom end of the mounting bracket 2. A first connecting rod 14 is fixed at the output end of the electric actuator 13. A second connecting rod 15 is rotatably connected to both ends of the first connecting rod 14. A third connecting rod 16 is rotatably connected to the other end of each of the second connecting rods 15. The other ends of the two third connecting rods 16 are respectively fixed in the middle of the side wall of the crank arm connecting rod 4, which improves the stability of the synchronous rotation of the crank arm connecting rod 4. Several pagoda connectors 19 are inserted into the bottom of the connecting pipe 6. Each pagoda connector 19 has a nozzle 18 inserted into its end. The pagoda connectors 19 are all pagoda-shaped, and their external dimensions are adapted to the internal dimensions of the nozzles 18, which improves the convenience of nozzle 18 installation and replacement. By replacing different models of nozzles 18, water flow pressure can be adjusted. The nozzles 18 are existing technology and will not be described in detail here. Activating the electric push rod 13 can drive the first connecting rod 14 to move vertically. Through the cooperation of the second connecting rod 15 and the third connecting rod 16, the crank arm connecting rod 4 is driven to rotate synchronously, which improves the convenience of nozzle 18 angle adjustment and expands the spraying range of the nozzles 18. This improves the washing efficiency and quality of the agricultural drone transformed into a photovoltaic power station washing drone. By installing and adapting the cleaning equipment to the agricultural drone, modifying the water tank 5 and water supply system, and upgrading and adjusting the flight path planning algorithm, the agricultural drone is transformed into a washing drone that can efficiently and safely carry out photovoltaic power station cleaning operations.
[0032] Please refer to Figures 1-3 The end of the water tank 5 is connected to a water inlet 9, and the top of the water inlet 9 is threaded with an end cap 20. A camera 7 is rotatably connected to the side wall of the mounting base 1 away from the water inlet 9 to monitor video images. The mounting base 1 has a built-in signal module for real-time image transmission.
[0033] Please refer to Figures 2-4 The two sets of support seats 3 are symmetrically distributed. Support plates 10 are fixed on the inner sidewalls of the support seats 3, which improves the overall stability of the support seats 3. Two water pumps 11 are fixed at the top of the support plates 10. The input end of each water pump 11 is connected to a first pipe 12, and the output end of each water pump 11 is connected to a second pipe 17. The other end of the first pipe 12 is connected to the bottom of the water tank 5, and the other end of the second pipe 17 is connected to the top of the connecting pipe 6.
[0034] When using the washing structure of the photovoltaic power station washing drone, the operator first installs the power supply, then injects cleaning water into the water tank 5 through the water inlet 9, and then threads the end cap 20 onto the top of the water inlet 9. The propeller blades 8 are then activated to make the drone take off. When the drone moves directly above the photovoltaic panel, the operator activates two water pumps 11 to pump the water inside the water tank 5 through the first pipe 12 and the second pipe 17 into the connecting pipe 6, and then sprays it out through several nozzles 18 to wash the surface of the photovoltaic panel. Activating the electric push rod 13 can drive the first connecting rod 14 to move vertically. Through the cooperation of the second connecting rod 15 and the third connecting rod 16, the crank arm connecting rod 4 is driven to rotate synchronously, thereby improving the convenience of adjusting the angle of the nozzles 18, expanding the spraying range of the nozzles 18, and thus improving the washing efficiency and quality of the agricultural drone converted into a photovoltaic power station washing drone.
[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A washing structure for a plant protection drone used to modify a photovoltaic power station washing drone, characterized in that, It includes a mounting base (1): propeller blades (8) are rotatably connected to the four corners of the mounting base (1), a mounting frame (2) is fixed at the bottom of the mounting base (1), a water tank (5) is snapped into the middle of the mounting frame (2), two sets of support seats (3) are fixed at the bottom of the mounting frame (2), a crank arm connecting rod (4) is rotatably connected to the side wall of the two sets of support seats (3), a connecting pipe (6) is inserted into the end of the crank arm connecting rod (4), an electric push rod (13) is fixed in the middle of the bottom of the mounting frame (2), a first connecting rod (14) is fixed at the output end of the electric push rod (13), a second connecting rod (15) is rotatably connected to both ends of the first connecting rod (14), a third connecting rod (16) is rotatably connected to the other end of the second connecting rod (15), and several pagoda connectors (19) are inserted into the bottom of the connecting pipe (6), and nozzles (18) are inserted into the end of each pagoda connector (19).
2. The washing structure for a plant protection drone to be converted into a photovoltaic power station washing drone according to claim 1, characterized in that: The two crank arm connecting rods (4) are symmetrically distributed in a U-shape, and the other ends of the two third connecting rods (16) are fixed in the middle of the side wall of the crank arm connecting rod (4).
3. The washing structure for a plant protection drone to be converted into a photovoltaic power station washing drone according to claim 1, characterized in that: The two sets of support seats (3) are symmetrically distributed, and support plates (10) are fixed on the inner sidewalls of the support seats (3).
4. The washing structure for a plant protection drone to be used for washing a photovoltaic power station, as described in claim 3, is characterized in that: Two water pumps (11) are fixed at the top of the support plate (10). The input end of each water pump (11) is connected to a first pipe (12), and the output end of each water pump (11) is connected to a second pipe (17).
5. The washing structure for a plant protection drone to be used for washing a photovoltaic power station, as described in claim 4, is characterized in that: The other end of the first pipe (12) is inserted into the bottom of the water tank (5), and the other end of the second pipe (17) is inserted into the top of the connecting pipe (6).
6. The washing structure for a plant protection drone to be converted into a photovoltaic power station washing drone according to claim 1, characterized in that: The end of the water tank (5) is connected to a water inlet (9), and the top of the water inlet (9) is threaded with an end cap (20).
7. The washing structure for a plant protection drone to be converted into a photovoltaic power station washing drone according to claim 1, characterized in that: A camera (7) is rotatably connected to the side wall of the mounting base (1) away from the water inlet (9).
8. The washing structure for a plant protection drone to be converted into a photovoltaic power station washing drone according to claim 1, characterized in that: The four sets of propeller blades (8) are symmetrically distributed.