A piped water supply photovoltaic cleaning device and method

Abstract

This invention provides a piped water-supply photovoltaic cleaning device and method, including a drone with a water tank suspended below it. The water tank is equipped with a water inlet pipe for replenishing water, which is connected to a water replenishment pipe device. Multiple water replenishment pipe devices are installed on the outside of the solar panels in the photovoltaic base, with each device connected to a water tower via a main water supply pipe. The water tank also has a water delivery pipe for supplying water to a cleaning machine, which is connected in combination. The cleaning machine is hydraulically driven and rolled within a track groove on the outside of the solar panels, simultaneously cleaning them. This device operates without external power, automatically docking with the water replenishment pipe and then with the cleaning machine. Water pressure drives its self-propelled wheels, and water flowing from these wheels cleans the photovoltaic panels through spray nozzles, achieving efficient, automated, and rapid cleaning.

Description

Technical Field

[0001] This invention belongs to the field of automatic photovoltaic panel cleaning equipment, and in particular relates to a piped water supply photovoltaic cleaning equipment and method. Background Technology

[0002] To ensure the normal power generation efficiency of photovoltaic panels, the surface of the photovoltaic panels needs to be cleaned regularly to improve their light energy absorption efficiency.

[0003] Currently, the most common cleaning method is manual cleaning on a regular schedule. The problem is that for large-area cleaning operations, manual cleaning is inefficient, labor-intensive, and uneconomical.

[0004] Although there is a drone cleaning device for residential solar photovoltaic panels disclosed in CN 206392517 U, which uses a drone equipped with a high-pressure air supply device to blow away dust on the surface of the photovoltaic panels, the cleaning effect cannot be guaranteed by blowing, and the cleaning effect is not good.

[0005] Although CN 113976513 A discloses a drone-based photovoltaic panel dust removal device that uses a cleaning roller and water supply system mounted on the drone for water filling and cleaning, it requires regular water replenishment.

[0006] Although CN 219056601 U discloses a photovoltaic panel cleaning drone, which also cleans photovoltaic panels by spraying cleaning fluid onto the drone, the cleaning effect is not good simply by spraying water. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention provides a piped water supply photovoltaic cleaning device and method. This device operates without external power, automatically connecting to the water supply pipe via a drone. After connecting to the cleaning machine, it uses water pressure to drive its self-propelled wheels. Water flowing from the self-propelled wheels then cleans the photovoltaic panels through spray nozzles, achieving efficient, automated, and rapid cleaning.

[0008] To achieve the above-mentioned technical features, the present invention aims to provide a piped water supply photovoltaic cleaning device, including a drone with a water tank for water storage suspended below the drone. The water tank is equipped with a water inlet pipe for replenishing water to the water tank, and the water inlet pipe is connected in conjunction with a water replenishment pipe device for replenishing water. There are multiple water supply pipe devices, which are installed on the outside of the solar panels in the photovoltaic base. Each water supply pipe device is connected to the water tower through the main water supply pipe. The water tank is equipped with a water supply pipe for supplying water to the cleaning machine and is connected in combination; The cleaning machine is hydraulically driven and rolled within a track groove on the outside of the solar panel, simultaneously cleaning the solar panel.

[0009] The water supply pipe device includes a water supply pipe sleeve located on the outer bottom side, and the water supply pipe is stored inside the water supply pipe sleeve. The water supply pipe is a soft, flexible, and stretchable water pipe, and an elastic support spring is embedded inside to provide support, so as to reduce the pulling force of the UAV during the towing process. The top of the water supply pipe sleeve is provided with an extension port for the water supply pipe to be led out. The top of the water supply pipe is equipped with a bell mouth for connecting with the water inlet pipe. The inside of the bell mouth is sealed with a water bladder made of flexible material. The outer wall of the water bladder is equipped with a first water inlet. When the water supply pipe is filled with water, the water flows into the water bladder and supports it. The upper part of the water bladder is an elastic support pad, which allows the water bladder to retract under elastic action when it is not filled with water.

[0010] A water bladder is fixedly and sealed on the outside of the water inlet pipe. The inside of the side wall of the water inlet pipe is connected to the water bladder through the water inlet of the water bladder. When the inside of the water inlet pipe is filled with water, the water flows into the water bladder and expands the water bladder, which is then locked inside the water bladder of the water inlet pipe for reliable connection. A first limiting cover is provided on the outside of the water inlet pipe and on the side near the water tank to control the depth of its insertion into the water supply pipe.

[0011] It also includes a retraction device for retracting the water supply pipe. The retraction device includes an elastic coil with a built-in winding. An energy-storing spring is installed inside the elastic coil. The elastic coil is set on the base outside the water supply pipe sleeve. The winding wire extending from inside the elastic coil passes through the wire hole on the water supply pipe sleeve and is fixed to the outer wall of the water supply pipe by a fixing ring. When the water supply pipe is disconnected from the water inlet pipe of the UAV, the retraction force of the energy-storing spring inside the elastic coil pulls the winding wire back, thereby retracting the water supply pipe back into the water supply pipe sleeve.

[0012] The opening of the water supply pipe sleeve is also designed in a flared shape to facilitate the retraction and introduction of the water supply pipe. The sizes of the two flared openings of the water supply pipe and the water supply pipe sleeve should be reasonably set and matched to ensure that the flared opening of the water supply pipe is blocked by the flared opening of the water supply pipe sleeve, and the body of the water supply pipe is retracted into the water supply pipe sleeve to facilitate the reconnection of the drone's water supply pipe next time.

[0013] The water supply pipe is equipped with a water supply pipe shut-off valve to control the on / off switch of the water supply pipe. A water supply pipe water bladder and a second water bladder inlet are provided on the inner side of the water supply pipe outlet end. A second limit cover is also fixedly installed on the side of the water supply pipe near the drone to prevent the water supply pipe from extending too deeply into the water guide frame of the cleaning machine.

[0014] The water guide frame is equipped with an inner retaining ring. When the water supply pipe is closed, not supplying water, and the water supply pipe bladder is not inflated, the water supply pipe is inserted into the water inlet of the water guide frame. At this time, the outer diameter of the water supply pipe bladder is smaller than the inner diameter of the inner retaining ring, allowing the water supply pipe to freely extend below the inner retaining ring at the inlet. Then, when the water supply pipe is opened and water is supplied, water enters the water supply pipe bladder from the inlet of the second water bladder, inflating the bladder. This makes the diameter of the water supply pipe bladder larger than the inner diameter of the inner retaining ring, preventing the water supply pipe from being pulled out of the water guide frame. This bidirectional limiting mechanism ensures a reliable connection and water supply between the water supply pipe and the water guide frame.

[0015] The cleaning machine includes a water guide frame for connecting to a water supply pipe. The lower part of the water guide frame is connected to a branch pipe, which is connected to an inlet channel through a first one-way valve. A self-propelled wheel is installed at the end of the inlet channel through a sliding seal and a bearing. The self-propelled wheel is a sealed structure with multiple blades inside. The tail end of the inlet channel extends into the self-propelled wheel and is provided with a water guide port. The water guide port faces the blades and drives the self-propelled wheel to move by water impacting the blades. A return water channel is arranged inside the self-propelled wheel. The end of the return water channel is a flared structure. The return water channels of both self-propelled wheels are connected to the cleaning frame guide pipe through a branch pipe. The tail end of the cleaning frame guide pipe is connected to the water spray beam. A cleaning frame and a cleaning brush are arranged at the lower part of the cleaning frame guide pipe. Wheel frames and follower wheels are arranged at the left and right ends of the water spray beam. Multiple water spray nozzles are arranged in the middle of the water spray beam. The self-propelled wheel is in front, and the follower wheels are all arranged in the track groove.

[0016] A diagonal brace is provided between the water guide frame and the cleaning frame guide tube. The diagonal brace is a non-water-passing structure. A check valve is provided on the cleaning frame guide tube. The cleaning rack adopts a figure-eight structure that slopes backward at an angle.

[0017] The track grooves of the front and rear rows of solar panels are connected by arc-shaped connecting sections at both ends to form a complete ring.

[0018] Both the track trough and the arc-shaped connecting section use trough-type tracks.

[0019] It also includes a control system, which adopts manual or automated wireless control. The manual wireless control method involves personnel operating the drone to first connect the drone to the water supply pipe, and then to the water guide frame, so as to further realize the movement and cleaning of the cleaning machine. The automated control method involves completing each docking and cleaning step through a pre-designed program under the monitoring of a camera.

[0020] A method for cleaning solar panels using a piped water supply photovoltaic cleaning device, wherein the method is implemented using the piped water supply photovoltaic cleaning device as described in any one of claims 1-12; The method includes the following steps: Step 1: Connecting the drone to the water supply pipe device; Connect the water inlet pipe on the drone to the water supply pipe of the water supply device, and ensure the reliability of the connection between the two. Step 2: Connecting the drone with the cleaning machine; Connect the drone's water supply pipe to the cleaning machine. During the connection process, first stop water from flowing through the water supply pipe by using the water supply pipe shut-off valve to facilitate the water supply pipe's insertion into the water inlet for connection. After the connection is complete, open the water supply pipe shut-off valve to ensure a reliable connection between the water supply pipe and the water inlet during the cleaning process. Step 3: Cleaning the solar panels with a cleaning machine; The speed of the cleaning machine can be adjusted by regulating the opening of the water supply pipe shut-off valve according to the water supply pressure. If you want to pause the cleaning, you can close the water supply pipe shut-off valve. Step 4: Disconnecting the cleaning machine; After cleaning is complete, disconnect the device following the reverse procedure of the docking process.

[0021] In the first step, the method of connecting the drone with the water supply pipe device is as follows: when the water inlet of the drone is inserted into the water supply pipe under the guidance of the control system, the water valve of the water supply pipe is opened and water is filled into the pipe. Both the water bladder of the water inlet pipe and the water bladder of the water supply pipe are filled with water and expanded. In this way, the two pipe ends of the water inlet pipe and the water supply pipe are temporarily and reliably connected, realizing the condition of continuous and reliable water supply.

[0022] In the third step, the cleaning machine cleans the solar panels as follows: water flowing from the drone's water supply pipe enters the inlet channel after passing through the water inlet. It first passes through the one-way valve of the inlet channel and then flows into the self-propelled wheel from the guide inlet. The guide inlet is aligned with the wheel blades in the self-propelled wheel at a suitable angle. The impact of the water drives the self-propelled wheel to rotate, which in turn drives the entire cleaning machine to move forward along the track groove, i.e., in the direction of the self-propelled wheel in front and the follower wheel behind. The water impacting the wheel blades enters the return channel through the return inlet. The return water from both sides is collected through the branch pipe and introduced into the spray beam through the cleaning frame guide tube. Then, it is sprayed out with water pressure from the spray nozzle to clean the solar panels. As the cleaning machine moves forward on the solar panels under the action of water flow, the cleaning brushes arranged on the cleaning frame at the bottom of the cleaning frame guide tube also clean the solar panels simultaneously, so that the spray nozzles on the subsequent spray beam can spray water to rinse and thoroughly clean the dust and debris on the solar panels.

[0023] During the cleaning process of solar panels, when the water supply pipe reaches its limit, the cleaning machine disconnects the current water supply pipe and connects it to the nearest water supply pipe device to continue cleaning.

[0024] The present invention has the following beneficial effects: 1. Highly innovative. This invention uses water pressure alone, without any external power source, to complete the functions of moving and cleaning the cleaning machine, demonstrating strong innovation.

[0025] 2. Ingenious Design. This invention embodies ingenious design in many aspects, such as the connection between the water inlet pipe and the water supply pipe, the connection between the water delivery pipe and the water inlet, and the cavity design inside the horizontal water pipe, which achieves a simple, economical and feasible effect.

[0026] 3. Precise Control. This invention embodies precise control in several aspects, such as the docking of the drone with the water supply pipe and the drone with the water inlet, all of which effectively achieve precise control through program control.

[0027] 4. Simple and practical. This invention strives for simplicity and practicality in its design, aiming to simplify complexity while achieving the best effect. The structure is as simple and practical as possible, and all details have been designed in a reasonable and simple manner, making it highly practical. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 This is a three-dimensional diagram of the cleaning process of the present invention.

[0032] Figure 3 This is a diagram illustrating the docking process between the drone and the water supply pipe device of the present invention.

[0033] Figure 4 This is a diagram showing the completed docking of the UAV and the water supply pipe device of the present invention.

[0034] Figure 5 This is a diagram showing the elongated state of the drone and water supply pipe device during the cleaning process of the present invention.

[0035] Figure 6 This is a diagram illustrating the docking process between the drone and the cleaning machine according to the present invention.

[0036] Figure 7 This is a diagram showing the completed docking of the drone and the cleaning machine according to the present invention.

[0037] Figure 8This is a first-person 3D view of the cleaning machine of the present invention.

[0038] Figure 9 This is a two-dimensional view of the cleaning machine of the present invention from a second perspective.

[0039] Figure 10 This is a three-dimensional perspective view of the cleaning machine of the present invention from a third-person perspective.

[0040] In the diagram: 1. Drone; 2. Water inlet pipe; 3. First limiting cover; 4. Water inlet pipe water bladder; 5. Water inlet pipe water bladder inlet; 6. Water supply pipe; 7. Second limiting cover; 8. Water supply pipe water bladder; 9. Second water bladder inlet; 11. Fixing ring; 12. Winding cable; 13. Extension port; 14. Water supply and replenishment pipe; 15. Elastic coil; 16. Elastic support spring; 17. Water replenishment pipe sleeve; 18. First water bladder inlet; 19. Water replenishment pipe water bladder; 20. Elastic support pad; 21. Water replenishment pipe flare; 22. Water guide frame flare; 23. Inner retaining ring; 24. Water guide frame. 4. Cleaning machine 25. Water tower 26. Water tank 27. Main water supply pipe 28. Solar panel 29. Track trough 30. Arc-shaped connecting section 31. Branch pipe 32. Spray beam 33. Spray nozzle 34. Sweeping frame 35. Sweeping brush 36. Wheel frame 37. Follower wheel 38. Self-propelled wheel 39. Bearing 40. Return water channel 41. Inlet water channel 42. First one-way valve 43. Branch pipe 44. Sweeping frame guide 45. Check valve 46. Diagonal brace 47. Wheel blade 48. Trumpet-shaped structure 49. Water guide 50. Detailed Implementation

[0041] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0042] The embodiments described herein are clearly and completely provided; however, they are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] Example 1: See Figure 1-10 A piped water-supply photovoltaic cleaning device includes a drone 1, with a water tank 27 suspended below the drone 1 for water storage. A water inlet pipe 2 for replenishing water to the tank 27 is installed on the tank 27, and the water inlet pipe 2 is connected to a water replenishment pipe device. Multiple water replenishment pipe devices are installed on the outside of the solar panels 29 in the photovoltaic base, and each water replenishment pipe device is connected to a water tower 26 or a water pump via a main water supply pipe 28. A water delivery pipe 6 is installed on the water tank 27 for supplying water to a cleaning machine 25 and is connected in combination. The cleaning machine 25 is hydraulically driven and rolled within a track groove 30 on the outside of the solar panels 29, simultaneously cleaning the solar panels 29. This device operates without external power, automatically connecting the drone to the water replenishment pipe and then to the cleaning machine. Water pressure drives the self-propelled wheels, and water flowing from the wheels cleans the photovoltaic panels through spray nozzles, achieving efficient, automated, and rapid cleaning. In actual use, water is supplied to the water tank 27 through the water inlet pipe 2, and then water is supplied to the cleaning machine 25 through the water delivery pipe 6. The cleaning machine 25 is driven by water power to move and simultaneously clean the solar panel 29.

[0047] Furthermore, the water supply pipe device includes a water supply pipe sleeve 17 located on the outer bottom side, with a water supply pipe 14 internally supported and stored. The water supply pipe 14 is made of a soft, flexible, and stretchable water pipe, and an elastic spring 16 is embedded inside to provide support, thereby reducing the pulling force on the UAV 1 during towing. An extension port 13 for the water supply pipe 14 to extend from the top of the water supply pipe sleeve 17. The water supply pipe sleeve 17 is made of steel to keep the water supply pipe 14 in a vertical position, facilitating the docking of the UAV's water supply pipe. The elastic spring 16 provides support for the water supply pipe, transferring part of the weight of the water supply pipe vertically to the base, reducing the increased pulling force on the UAV caused by the weight of the water supply pipe, and also opening up the internal space of the water supply pipe to allow the UAV's water supply pipe to dock with it and form a good water supply space channel.

[0048] Furthermore, the top of the water supply pipe 14 is provided with a water supply pipe flared mouth 21 for connecting with the water inlet pipe 2. The inside of the water supply pipe flared mouth 21 is sealed with a water supply pipe water bladder 19 made of flexible material. The outer wall of the water supply pipe water bladder 19 is provided with a first water bladder inlet 18. When the water supply pipe 14 is filled with water, the water flows into the water supply pipe water bladder 19 and supports it. The upper part of the water supply pipe water bladder 19 is an elastic support pad 20, so that the water supply pipe water bladder 19 can be retracted under the action of elasticity when it is not filled with water.

[0049] Furthermore, a water inlet bladder 4 is fixedly and sealed on the outside of the water inlet pipe 2. The outside of the side wall of the water inlet pipe 2 is connected to the water inlet bladder 4 through the water inlet bladder inlet 5. When the water inlet pipe 2 is filled with water, the water flows into the water inlet bladder 4, expanding the water inlet bladder 4 and locking it inside the water inlet bladder 19 for reliable connection. A first limiting cap 3 is provided on the outside of the water inlet pipe 2, near the water tank 27, to control its insertion depth into the water inlet pipe 14. The above structure facilitates the connection between the water inlet pipe 2 and the water inlet pipe. When the water inlet pipe of the UAV is inserted into the water inlet pipe under the guidance of the control system, the water valve of the water inlet pipe is opened and water is filled into the pipe. Both the water inlet bladder and the water inlet bladder are filled with water and expanded. In this way, the two pipe ends of the water inlet pipe and the water inlet pipe are temporarily and reliably connected, realizing the condition of continuous and reliable water supply.

[0050] Furthermore, a retraction device is included for retracting the water supply pipe 14. This device comprises an elastic coil 15 with a built-in winding 12. An energy-storing spring is installed inside the elastic coil 15. The elastic coil 15 is mounted on a base outside the water supply pipe sleeve 17. The winding 12, extending from inside the elastic coil 15, passes through a threading hole on the water supply pipe sleeve and is fixed to the outer wall of the water supply pipe 14 by a fixing ring 11. When the water supply pipe 14 is disconnected from the water inlet pipe 2 of the UAV 1, the retraction force of the energy-storing spring inside the elastic coil 15 pulls the winding 12 back, thereby retracting the water supply pipe 14 back into the water supply pipe sleeve 17. This retraction device enables the water supply pipe to be retrieved when not in use.

[0051] Furthermore, the opening of the water supply pipe sleeve 17 is also set in a flared shape so that the water supply pipe 14 can be retracted and introduced. The sizes of the two flared openings of the water supply pipe 14 and the water supply pipe sleeve 17 should be reasonably set and matched to ensure that the flared opening 21 of the water supply pipe is blocked by the flared opening of the water supply pipe sleeve 17, and the body of the water supply pipe 14 is retracted into the water supply pipe sleeve 17 so that the water supply pipe 2 of the UAV 1 can be reconnected next time.

[0052] Furthermore, a water supply pipe shut-off valve is provided on the water supply pipe 6 to control the on / off switch of the water flow in the water supply pipe 6. A water supply pipe water bladder 8 and a second water bladder inlet 9 are provided on the outer side of the outlet end of the water supply pipe 6. A second limiting cover 7 is also fixedly provided on the side of the water supply pipe 6 near the drone to prevent the water supply pipe 6 from extending too deeply into the water guide frame 24 of the cleaning machine 25.

[0053] Furthermore, the water guide frame 24 is internally equipped with an inner retaining ring 23. When the water supply pipe 6 is in the case that the water supply pipe shut-off valve is closed, the water supply pipe 6 is not supplying water, and the water supply pipe bladder 8 is not inflated, the water supply pipe 6 extends into the water inlet of the water guide frame 24 to connect. At this time, the outer diameter of the water supply pipe bladder 8 is smaller than the inner diameter of the inner retaining ring 23, and the water supply pipe 6 can freely extend into the water inlet below the inner retaining ring 23. Then, when the water supply pipe shut-off valve is opened and water is supplied, water enters the water supply pipe bladder 8 from the second water bladder inlet 9, expanding the water supply pipe bladder 8. In this way, the diameter of the water supply pipe bladder 8 is larger than the inner diameter of the inner retaining ring 23, and the water supply pipe 6 cannot be pulled out from the water guide frame 24. Thus, through bidirectional limiting, reliable connection and water supply between the water supply pipe and the water guide frame 24 are ensured.

[0054] Example 2: To achieve cleaning, a cleaning machine 25 is provided. Further, the cleaning machine 25 includes a water guide frame 24 for connecting to a water supply pipe 6. A branch pipe 32 is connected to the lower part of the water guide frame 24. The branch pipe 32 is connected to a water inlet channel 42 via a first one-way valve 43. A self-propelled wheel 39 is mounted at the end of the water inlet channel 42 via a bearing 40. The self-propelled wheel 39 has a sealed structure and multiple impellers 48 are arranged inside. The tail end of the water inlet channel 42 extends into the self-propelled wheel 39 and is provided with a water guide port 50, which faces the impellers 48. The self-propelled wheel 39 is driven by water-powered impact impeller 48. A water return channel 41 is arranged inside the self-propelled wheel 39, with a flared end 49. The water return channels 41 of both self-propelled wheels 39 are connected to the sweeper guide 45 via branch pipes 44. The tail end of the sweeper guide 45 is connected to the water spray beam 33. The sweeper frame 35 and sweeping brush 36 are arranged at the lower part of the sweeper guide 45. Wheel frames 37 and follower wheels 38 are arranged at both ends of the water spray beam 33, and multiple water spray nozzles 34 are arranged in the middle of the water spray beam 33. The self-propelled wheel 39 is in front, and the follower wheels 38 are all arranged within the track groove 30.

[0055] Working principle of the cleaning machine: This cleaning machine operates in a unidirectional manner, but by rationally and cyclically setting the cleaning machine's running track, it can ensure that the photovoltaic panels are cleaned and maintained without any omissions.

[0056] Furthermore, the water guide frame, water spray beam 33, self-propelled wheel, branch pipe, sweeping frame guide pipe, and water spray beam are all hollow structures. The internal components are connected to form a complete water flow channel, and finally the water is sprayed out through the spray nozzle. Water flowing from the drone's water supply pipe enters the inlet channel after passing through the inlet. It first passes through a one-way valve in the inlet channel, then flows into the self-propelled wheel through the guide inlet. The guide inlet is angled to align with the wheel blades, and the impact of the water drives the wheel to rotate, further propelling the entire cleaning machine forward along the track. The water impacting the wheel blades enters the return channel through the return inlet. The return water from both sides is collected through branch pipes and introduced into the spray beam via the cleaning frame guide tube. It is then sprayed out with water pressure from the spray nozzles to clean the solar panels. As the cleaning machine moves forward on the solar panels under the action of water flow, the cleaning brushes on the cleaning frame below the guide tube simultaneously clean the solar panels, allowing the spray nozzles on the subsequent spray beam to rinse them thoroughly, removing dust and debris. The cleaning frame adopts a slanted rearward V-shaped structure, which allows debris and dust to be pushed to the outside of the solar panels while cleaning. Track grooves are set at both ends of the solar panel. The self-propelled wheel moves the cleaning machine in the track groove, which avoids the cleaning machine from not moving in a straight line due to the tilt of the solar panel, and avoids the running trajectory from deviating, resulting in poor cleaning effect.

[0057] Furthermore, the track channels of the two rows of solar panels are connected into a complete ring through the arc-shaped connecting sections at both ends. This allows for effective and comprehensive cleaning of the solar panels in unidirectional operation. Considering the angle of sunlight reception, photovoltaic panels are generally arranged at an angle, and the track channels of the cleaning machine are also arranged at an angle. The connection between the two rows of photovoltaic panels via the arc-shaped connecting sections at both ends results in variations in the slope of the track channels. This allows for a reasonable connection and good adaptation, but the principle of adjustment is that the track gauge on both sides of any cross-section must remain constant. That is, if the track heights on the left and right sides are inconsistent, such as with track channels on the same cross-section where one is high and the other low, one slopes up and the other down, this is to accommodate the situation where the track channels are arranged at an angle on straight sections. However, at the connecting section, the track channels need to be adjusted and converted. Specifically, the single track channel closer to the inside should slope downwards, and the single track channel on the outside should slope upwards.

[0058] Furthermore, a diagonal brace 47 is provided between the water guide frame 24 and the cleaning frame guide tube 45. The diagonal brace 47 is a non-water-passing structure. A check valve 46 is provided on the cleaning frame guide tube 45. The check valve 46 ensures the effect and quality of high-pressure water rinsing.

[0059] Furthermore, the cleaning rack 35 adopts a figure-eight structure that slopes backward.

[0060] Furthermore, the track grooves 30 of the two rows of solar panels 29 are connected into a complete ring by the arc-shaped connecting sections 31 at both ends. Continuous cleaning can be achieved through these track grooves.

[0061] Furthermore, both the track groove 30 and the arc-shaped connecting section 31 adopt grooved tracks.

[0062] Furthermore, it also includes a control system, which adopts manual or automated wireless control. The manual wireless control method involves personnel operating the drone to first connect the drone to the water supply pipe, and then to the water guide frame, so as to further realize the movement and cleaning of the cleaning machine 25. The automated control method involves completing each docking and cleaning step through a pre-designed program under the monitoring of a camera.

[0063] Example 3: A method for cleaning solar panels using a piped water supply photovoltaic cleaning device, wherein the method is implemented using the aforementioned piped water supply photovoltaic cleaning device; The method includes the following steps: Step 1: Connecting the drone 1 to the water supply pipe device; Connect the water inlet pipe 2 on the UAV 1 to the water supply pipe 14 of the water supply device, and ensure the reliability of the connection between the two. Step 2: Docking drone 1 with cleaning machine 25; Connect the water supply pipe 6 of the drone 1 to the cleaning machine 25. During the connection process, first stop water from flowing through the water supply pipe 6 by using the water supply pipe shut-off valve to facilitate the water supply pipe 6 to be inserted into the water inlet for connection. After the connection is completed, open the water supply pipe shut-off valve to ensure a reliable connection between the water supply pipe 6 and the water inlet during the cleaning process. Step 3: Cleaning the solar panels with a cleaning machine (25 pairs). The speed of the cleaning machine 25 can be adjusted by regulating the water pressure. If you want to pause the cleaning, you can close the water supply pipe shut-off valve. Step 4: Disconnect the cleaning machine 25; After cleaning is complete, disconnect the device following the reverse procedure of the docking process.

[0064] In the first step, the method of connecting the UAV 1 with the water supply pipe device is as follows: when the inlet of the UAV 1's water inlet pipe 2 is inserted into the water supply pipe 14 under the guidance of the control system, the water valve of the water supply pipe is opened and water is filled into the pipe. The water bladder 4 of the water inlet pipe and the water bladder 19 of the water supply pipe are both filled with water and expanded. In this way, the two pipe ends of the water inlet pipe 2 and the water supply pipe 14 are temporarily and reliably connected, realizing the condition of continuous and reliable water supply.

[0065] In the third step, the cleaning method of the cleaning machine 25 for cleaning the solar panels is as follows: water flowing from the water supply pipe 6 of the drone 1 enters the water inlet 42 after passing through the water inlet, first passes through the one-way valve of the water inlet 42, and then flows into the self-propelled wheel 39 from the guide port 50 of the water inlet 42. The guide port 50 is aligned with the wheel blade 48 in the self-propelled wheel at a suitable angle. The impact of the water drives the self-propelled wheel 39 to rotate, further driving the entire cleaning machine 25 to move forward along the track groove 30. The water impacting the wheel blade enters through the return port. The return water from the left and right sides of the return water channel 41 is collected through the branch pipe 44 and introduced into the water spray beam 33 through the cleaning frame guide 45. Then, it is sprayed out with water pressure from the spray nozzle 34 to clean the solar panel 29. As the cleaning machine 25 moves forward on the solar panel 29 under the action of water flow, the cleaning brushes arranged on the cleaning frame at the bottom of the cleaning frame guide 45 also clean the solar panel at the same time, so that the spray nozzles on the subsequent water spray beam can spray water to rinse and thoroughly clean the dust and debris on the solar panel.

[0066] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here; that is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A piped water supply photovoltaic cleaning device, characterized in that, Includes a drone (1), with a water tank (27) suspended below the drone (1) for water storage. The water tank (27) is provided with a water inlet pipe (2) for replenishing water to the water tank, and the water inlet pipe (2) is connected in conjunction with a water replenishment pipe device for replenishing water. There are multiple water supply pipe devices, which are set on the outside of the solar panels (29) of the photovoltaic base. Each water supply pipe device is connected to the water tower (26) through the main water supply pipe (28). The water tank (27) is equipped with a water supply pipe (6) for supplying water to the cleaning machine (25) and connected in combination. The cleaning machine (25) is hydraulically driven to roll within the track groove (30) on the outside of the solar panel (29) and cleans the solar panel (29) at the same time. The cleaning machine (25) includes a water guide frame (24) for connecting to the water supply pipe (6). The lower part of the water guide frame (24) is connected to a branch pipe (32). The branch pipe (32) is connected to the water inlet (42) through a first one-way valve (43). The end of the water inlet (42) is equipped with a self-propelled wheel (39) through a sliding seal and a bearing (40). The self-propelled wheel (39) is a sealed structure with multiple wheel blades (48) inside. The tail end of the water inlet (42) extends into the self-propelled wheel (39) and is provided with a water guide port (50). The water guide port (50) faces the wheel blades (48) and impacts the wheel blades (48) with water. 8) Driven by self-propelled wheels (39); the interior of the self-propelled wheels (39) is equipped with a water return channel (41), the end of the water return channel (41) is a flared structure (49), the water return channels (41) of both sides of the self-propelled wheels (39) are connected to the sweeper guide pipe (45) through the branch pipe (44), the tail end of the sweeper guide pipe (45) is connected to the water spray beam (33), the sweeper (35) and sweeping brush (36) are arranged at the bottom of the sweeper guide pipe (45), the wheel frame (37) and follower wheel (38) are arranged at the left and right ends of the water spray beam (33), and multiple water spray nozzles (34) are arranged in the middle of the water spray beam (33). Both the self-propelled wheel (39) and the follower wheel (38) are arranged in the track groove (30).

2. The photovoltaic cleaning equipment with piped water supply according to claim 1, characterized in that: The water supply pipe device includes a water supply pipe sleeve (17) located on the outer side of the bottom, and the water supply pipe sleeve (17) internally supports and stores the water supply pipe (14); the water supply pipe (14) is a soft, flexible and stretchable water pipe, and an elastic support spring (16) is embedded inside to provide support, so as to reduce the pulling force of the UAV (1) during the towing process; the top of the water supply pipe sleeve (17) is provided with an extension port (13) for the water supply pipe (14) to be led out. The top of the water supply pipe (14) is provided with a water supply pipe flared mouth (21) for connecting with the water inlet pipe (2). The inside of the water supply pipe flared mouth (21) is sealed with a water supply pipe water bladder (19) made of flexible material. The outer wall of the water supply pipe water bladder (19) is provided with a first water bladder inlet (18). When the water supply pipe (14) is filled with water, the water flows into the water supply pipe water bladder (19) and supports it. The upper part of the water supply pipe water bladder (19) is an elastic support pad (20) so that the water supply pipe water bladder (19) can be retracted under the elastic action when it is not filled with water.

3. The photovoltaic cleaning equipment with piped water supply according to claim 2, characterized in that: The water inlet pipe (2) is fixedly sealed with a water inlet pipe water bag (4) on the outside of the pipe opening. The inside of the side wall of the water inlet pipe (2) is connected to the water inlet pipe water bag (4) through the water inlet pipe water bag water inlet (5). When the inside of the water inlet pipe (2) is filled with water, the water flows into the water inlet pipe water bag (4), which expands the water inlet pipe water bag (4) and is stuck inside the water inlet pipe water bag (19) for reliable connection. A first limiting cap (3) is provided on the outside of the water inlet pipe (2) and on the side near the water tank (27) to control the depth of its insertion into the water supply pipe (14).

4. The photovoltaic cleaning equipment with piped water supply according to claim 2, characterized in that: It also includes a retraction device for retracting the water supply pipe (14). The retraction device includes an elastic coil (15) with a built-in winding (12). An energy storage spring is installed inside the elastic coil (15). The elastic coil (15) is set on the base outside the water supply pipe sleeve (17). The winding (12) extending from inside the elastic coil (15) passes through the wire hole on the water supply pipe sleeve. The winding (12) is fixed to the outer wall of the water supply pipe (14) by the fixing ring (11). When the water supply pipe (14) is disconnected from the water inlet pipe (2) of the UAV (1), the winding (12) is pulled back by the retraction force of the energy storage spring inside the elastic coil (15), thereby retracting the water supply pipe (14) back into the water supply pipe sleeve (17).

5. The photovoltaic cleaning equipment with piped water supply according to claim 2, characterized in that: The opening of the water supply pipe sleeve (17) is also set in the shape of a flared mouth so that the water supply pipe (14) can be retracted and introduced. The sizes of the two flared mouths of the water supply pipe (14) and the water supply pipe sleeve (17) should be reasonably set and matched to ensure that the flared mouth (21) of the water supply pipe is blocked by the flared mouth of the water supply pipe sleeve (17) and the body of the water supply pipe (14) is retracted into the water supply pipe sleeve (17) so that the water supply pipe (2) of the UAV (1) can be reconnected next time.

6. The photovoltaic cleaning equipment with piped water supply according to claim 1, characterized in that: The water supply pipe (6) is equipped with a water supply pipe shut-off valve to control the water flow of the water supply pipe (6). The water supply pipe water bladder (8) and the second water bladder inlet (9) are provided on the inner side of the outlet end of the water supply pipe (6). A second limit cover (7) is also fixedly installed on the side of the water supply pipe (6) near the drone to prevent the water supply pipe (6) from extending too deeply into the water guide frame (24) of the cleaning machine (25).

7. The photovoltaic cleaning equipment with piped water supply according to claim 6, characterized in that: The water guide frame (24) is equipped with an inner retaining ring (23). When the water supply pipe (6) is closed, not supplied with water, and the water supply pipe bladder (8) is not filled with water, the water supply pipe (6) is inserted into the water inlet of the water guide frame (24) to connect. At this time, the outer diameter of the water supply pipe bladder (8) is smaller than the inner diameter of the inner retaining ring (23), and the water supply pipe (6) can freely extend into the water inlet below the inner retaining ring (23). Then, the water supply pipe is opened, and after water is supplied, water enters the water supply pipe bladder (8) from the second water bladder inlet (9), which expands the water supply pipe bladder (8). In this way, the diameter of the water supply pipe bladder (8) is larger than the inner diameter of the inner retaining ring (23), and the water supply pipe (6) cannot be pulled out from the water guide frame (24). Thus, through bidirectional limiting, the reliable connection and water supply between the water supply pipe and the water guide frame (24) are ensured.

8. The photovoltaic cleaning equipment with piped water supply according to claim 1, characterized in that: A diagonal brace (47) is provided between the water guide frame (24) and the cleaning frame guide tube (45). The diagonal brace (47) is a non-water-passing structure. A check valve (46) is provided on the cleaning frame guide tube (45). The cleaning rack (35) adopts a figure-eight structure that is angled backward.

9. The photovoltaic cleaning equipment with piped water supply according to claim 1, characterized in that: The track grooves (30) of the two rows of solar panels (29) are connected into a complete ring by the arc-shaped connecting sections (31) at both ends.

10. The photovoltaic cleaning equipment with piped water supply according to claim 9, characterized in that: Both the track trough (30) and the arc-shaped connecting section (31) adopt trough-type tracks.

11. The photovoltaic cleaning equipment with piped water supply according to claim 1, characterized in that: It also includes a control system, which adopts manual or automated wireless control. The manual wireless control method is for personnel to operate the drone, first dock the drone with the water supply pipe, and then dock it with the water guide frame to further realize the movement and cleaning of the cleaning machine (25). The automated control method is to complete each docking and cleaning step through a pre-designed program under the monitoring of the camera and through the automatic identification of the program.

12. A method for cleaning solar panels using a piped water-supply photovoltaic cleaning device, characterized in that, The method is implemented using a piped water supply photovoltaic cleaning device as described in any one of claims 1-11; The method includes the following steps: Step 1: Connecting the drone (1) to the water supply pipe device; Connect the water inlet pipe (2) on the drone (1) to the water supply pipe (14) of the water supply device, and ensure the reliability of the connection between the two. Step 2: Docking the drone (1) with the cleaning machine (25); Connect the water supply pipe (6) of the drone (1) to the cleaning machine (25). During the connection process, first stop water from flowing through the water supply pipe (6) by passing the water supply pipe shut-off valve so that the water supply pipe (6) can be inserted into the water inlet for connection. After the connection is completed, open the water supply pipe shut-off valve to ensure a reliable connection between the water supply pipe (6) and the water inlet during the cleaning process. Step 3: Cleaning machine (25) cleans the solar panels; The speed of the cleaning machine (25) can be adjusted by adjusting the opening of the water supply pipe shut-off valve by adjusting the water supply pressure. If you want to stop cleaning, you can close the water supply pipe shut-off valve. Step 4: Disconnecting the cleaning machine (25); After cleaning is complete, disconnect the device following the reverse procedure of the docking process.

13. The method for cleaning solar panels using a piped water supply photovoltaic cleaning device according to claim 12, characterized in that: In the first step, the method of connecting the UAV (1) with the water supply pipe device is as follows: when the water inlet pipe (2) of the UAV (1) is inserted into the water supply pipe (14) under the guidance of the control system, the water valve of the water supply pipe is opened and water is filled into the pipe. The water bladder (4) of the water inlet pipe and the water bladder (19) of the water supply pipe are filled with water and expanded. In this way, the two pipe ends of the water inlet pipe (2) and the water supply pipe (14) are temporarily and reliably connected, realizing the conditions for continuous and reliable water supply.

14. The method for cleaning solar panels using a piped water supply photovoltaic cleaning device according to claim 12, characterized in that: In the third step, the cleaning machine (25) cleans the solar panels by the following method: water flowing from the water pipe (6) of the drone (1) enters the water inlet (42) after passing through the water inlet. It first passes through the one-way valve of the water inlet (42) and then flows into the self-propelled wheel (39) from the guide port (50) of the water inlet (42). The guide port (50) is aligned with the wheel blade (48) in the self-propelled wheel at a suitable angle. The impact of the water drives the self-propelled wheel (39) to rotate, which in turn drives the entire cleaning machine (25) to move forward along the track groove (30), that is, with the self-propelled wheel (39) in front and the follower wheel (38) behind. The water impacting the impeller enters the return channel (41) through the return port. The return water from the left and right sides is collected through the branch pipe (44) and introduced into the spray beam (33) through the cleaning frame guide pipe (45). Then, it is sprayed out with water pressure from the spray nozzle (34) to clean the solar panel (29). As the cleaning machine (25) moves forward on the solar panel (29) under the action of water flow, the cleaning brush arranged on the cleaning frame at the bottom of the cleaning frame guide pipe (45) also cleans the solar panel at the same time, so that the spray nozzle on the spray beam that follows can spray water to rinse and thoroughly clean the dust and debris on the solar panel.

15. The method for cleaning solar panels using a piped water supply photovoltaic cleaning device according to claim 12, characterized in that: During the cleaning process of the solar panel, when the length of the water supply pipe (14) reaches its limit, the cleaning machine (25) disconnects the current water supply pipe and then connects the water supply pipe of the nearest water supply pipe device to continue cleaning.

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