Aerial cleaning device

Abstract

The application discloses a kind of unmanned aerial vehicle high-altitude cleaning device, including cleaning mechanism, cleaning mechanism includes the body for being connected to unmanned aerial vehicle, body is provided with driving unit and extension piece, extension piece is provided with cleaning structure, cleaning structure can accept the drive of driving unit to move relative to the surface of target cleaning object.The unmanned aerial vehicle high-altitude cleaning device provided by the application can be installed on different models of unmanned aerial vehicle, and the body can be disassembled after use, thereby improving the use efficiency of the cleaning mechanism, and the extension piece on the body has a certain length, so that the cleaning structure on the extension piece can clean different target cleaning objects in different environments.

Description

Technical Field

[0001] This invention relates to the field of drone application technology, and specifically to a drone high-altitude cleaning device. Background Technology

[0002] A drone is an aircraft controlled by a remote control device or an onboard program. It is characterized by its simple structure, small size, light weight, good maneuverability, and long flight time. Due to these characteristics, drones can be used in many fields to solve problems more appropriately, efficiently, and safely, such as using drones for high-altitude cleaning.

[0003] For example, the utility model patent application with publication number CN206659738U, entitled "A Drone for High-Altitude Glass Cleaning", published on November 24, 2017, includes a rotor platform. Rotor arms are evenly distributed along the edge of the rotor platform, and rotors are located at the ends of the rotor arms. The rotors are driven to rotate by a flight motor. A water tank is installed on the rotor platform, and a water pump is installed on the water tank. The water pump is driven by a drive motor. A pipe is installed above the water pump and connected to the water pump outlet. A slide rail is fixedly connected to the end of the pipe, and a slide groove is provided on the slide rail. A slider is installed in the slide groove, and a cleaning component is fixedly connected to the slider. The cleaning component is connected to the pipe through a hose. A control box and a support rod are installed on the lower surface of the rotor platform. The support rod includes a strut, a sleeve, and a spring. The spring is placed inside the sleeve. The strut is divided into an upper part and a lower part. The lower part of the strut is inserted into the sleeve, and the upper part of the strut is fixed to the bottom surface of the base. The strut, sleeve, and spring are coaxially arranged. The technical solution provided by this utility model applies drones to high-altitude glass cleaning. When in use, the drone is controlled to fly outside the window and reach the vicinity of the glass that needs to be cleaned. Then, a command is sent to the controller to start the drive motor and the water pump to start working. The water in the water tank is pumped out and transported to the pipe, and then sprayed out through the small hole on the cleaning component through the hose. At the same time, the control slider moves back and forth in the slide groove so that the cleaning component cleans the glass.

[0004] For example, the utility model patent application CN211468783U, entitled "A High-Altitude Cleaning Drone with Positioning Function," published on September 11, 2020, includes a high-altitude cleaning drone with positioning function. It comprises a body, a liquid storage tank mounted on the body, a sensing unit, and a spraying unit. The sensing unit includes a first gimbal, a camera mounted on the first gimbal, and a ranging sensor fixedly connected to the first gimbal or the camera. The spraying unit includes a second gimbal and a nozzle mounted on the second gimbal. The nozzle is connected to the liquid storage tank via a liquid delivery pipeline. This utility model provides a solution for applying drones to high-altitude cleaning of insulating barriers on high-voltage power towers, replacing traditional manual cleaning. It offers a high safety factor, good adaptability, and features two independent gimbals, allowing for precise spraying of the cleaning fluid onto the target object and real-time monitoring and adjustment.

[0005] In the existing technology, drone cleaning devices generally include a drone and a cleaning mechanism. The cleaning mechanism is fixedly installed on the drone. During use, different models of drones and cleaning mechanisms are selected for cleaning depending on the target object and the cleaning environment. However, the existing cleaning mechanisms cannot be adapted to different models of drones. Therefore, it is necessary to design cleaning mechanisms of different sizes and structures to meet the cleaning requirements of different target objects, which makes the cleaning mechanism inefficient and increases the cost of use. Summary of the Invention

[0006] The purpose of this invention is to provide a drone high-altitude cleaning device to address the aforementioned shortcomings of the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A drone high-altitude cleaning device includes a cleaning mechanism, the cleaning mechanism including a body for connection to a drone, the body being provided with a drive unit and an extension member, the extension member being provided with a cleaning structure, the cleaning structure being capable of being driven by the drive unit to move relative to the surface of a target object to be cleaned.

[0009] The aforementioned drone high-altitude cleaning device also includes a water storage tank, which is fixedly connected to the drone or the main body.

[0010] The aforementioned drone high-altitude cleaning device further includes a water spraying assembly connected to the water storage tank. The water spraying assembly includes a water spraying element disposed on the extension member, which is used to spray water onto the cleaning structure or the target object to be cleaned.

[0011] In the aforementioned drone high-altitude cleaning device, the cleaning structure is driven by the drive unit to perform a rotational cleaning motion.

[0012] The aforementioned drone high-altitude cleaning device also includes a mounting frame, which is fixedly connected to the drone, and the main body is mounted on the mounting frame.

[0013] The aforementioned drone high-altitude cleaning device includes a drive motor in its drive unit, and the drive motor has at least two different speeds.

[0014] In the aforementioned drone high-altitude cleaning device, the drive unit and the extension are synchronously rotated and connected to the main body.

[0015] The aforementioned drone high-altitude cleaning device also includes an angle adjustment component, which is mounted on the main body or the drone and is used to drive the extension to rotate in order to adjust the cleaning angle.

[0016] The aforementioned drone high-altitude cleaning device also includes a counterweight adjustment component, which is installed inside the water storage tank. The counterweight adjustment component can adjust the center of gravity position of the water storage tank according to the amount of water stored in the tank.

[0017] The aforementioned drone high-altitude cleaning device includes a counterweight adjustment component comprising an elastic recovery element and a rotating adjustment plate rotatably connected inside the water storage tank. The water storage tank contains a water storage bag, and the rotating adjustment plate can rotate forward or backward as the amount of water stored in the water storage bag increases or decreases.

[0018] In the above technical solution, the present invention provides a drone high-altitude cleaning device. The cleaning mechanism includes a main body for connecting to the drone. The main body can be installed on different models of drones. After use, the main body can be disassembled, thereby improving the efficiency of the cleaning mechanism. The extension on the main body has a certain length, so that the cleaning structure on the extension can clean different target objects in different environments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a top view of the UAV high-altitude cleaning device provided in an embodiment of the present invention;

[0021] Figure 2 This is one of the front views of the UAV high-altitude cleaning device provided in an embodiment of the present invention;

[0022] Figure 3 This is a second front view of the UAV high-altitude cleaning device provided in an embodiment of the present invention;

[0023] Figure 4 This is one of the structural schematic diagrams of a counterweight adjustment assembly provided in another embodiment of the present invention;

[0024] Figure 5 This is a second schematic diagram of the structure of a counterweight adjustment assembly provided in another embodiment of the present invention;

[0025] Figure 6 This is the third schematic diagram of the structure of a counterweight adjustment assembly provided in another embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of a rotation adjustment plate provided in another embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the body provided in another embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of a balancing component provided in another embodiment of the present invention;

[0029] Figure 10 This is a schematic diagram of the structure of the restoration valve plate provided in another embodiment of the present invention;

[0030] Figure 11 This is a schematic diagram of the structure of a compression valve plate provided in another embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Unmanned Aerial Vehicle (UAV); 1.1 Airframe; 1.2 Arm; 2. Cleaning Mechanism; 2.1 Main Body; 2.2 Extension Component; 2.3 Cleaning Structure; 2.4 Cleaning Plate; 3. Water Spray Assembly; 3.1 Water Tank; 3.1.1 Water Storage Bag; 3.2 Water Spray Component; 3.3 Water Pump; 3.3.1 Pump Shaft; 4. Fixing Frame; 5. Angle Adjustment Assembly; 5.1 Electric Push Rod; 6. Counterweight Adjustment Assembly; 6.1 Rotating Adjustment Plate; 6.1.1 Rotating Shaft; 6.1.2 Free Side; 6.1.3 Rotating Side; 6.2 Elastic Restoration Component; 6.2.1 Torsion Spring; 6.3 Trigger Component; 6.4 Counterweight Block; 6.5 Drive Component; 6.6 Motor; 6.7 Lead Screw; 6.8 Limiting Part; 7. Balancing assembly; 7.1 Extension section; 7.2 Mounting base; 7.2.1 Mounting cavity; 7.2.2 Motion cavity; 7.3 Piston rod; 7.4 Annular plate; 7.5 Spring component; 7.6 Outer tube; 8. Inner tube; 8.1 Working chamber; 8.1.1 First chamber; 8.1.2 Second chamber; 8.2 Storage chamber; 8.3 Compression valve plate; 8.4 Restoration valve plate; 8.5 Piston head; 9. Valve body; 9.1 First normally open hole; 9.2 Second normally open hole; 9.3 First liquid guide plate; 9.4 Second liquid guide plate; 9.5 Guide plate. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] like Figure 1-11 As shown, this embodiment of the invention provides a drone high-altitude cleaning device, which also includes a cleaning mechanism 2. The cleaning mechanism 2 includes a body 2.1 for connecting to the drone 1. The body 2.1 is provided with a drive unit and an extension member 2.2. The extension member 2.2 is provided with a cleaning structure 2.3. The cleaning structure 2.3 can be driven by the drive unit to move relative to the surface of the target object to be cleaned.

[0035] Specifically, the drone high-altitude cleaning device provided in this embodiment is used to be installed below the drone to clean the target object. Generally, the drone 1 includes a body 1.1, a remote controller, an arm 1.2, and a propeller. The arm 1.2 is fixedly installed on the circumference of the body 1.1, and the propeller is installed at the end of the arm 1.2 away from the body 1.1, so that the body 1.1 can be powered to rise. The remote controller is matched with the body 1.1, and the body 1.1 can be controlled through the remote controller. This is the prior art and will not be described in detail. The cleaning mechanism 2 includes a main body 2.1, on which a connecting structure is provided. The connecting structure is detachably connected to the drone 1. The main body 2.1 is fixedly connected to the connecting structure. In this embodiment, the connecting structure can be connected to different models of drone 1. Thus, during use, the main body 2.1 can be installed on different models of drone 1 through the connecting structure. After use, the main body 2.1 can also be disassembled through the connecting structure, thus satisfying the reusability of the cleaning mechanism 2 and improving its efficiency. An extension 2.2 is provided on the main body 2.1. One end of the extension 2.2 is connected to the main body 2.1, and the cleaning structure 2.3 is located at the other end of the extension 2.2. The extension 2.2 has a certain length, which allows the cleaning structure 2.3 to have a certain operating and adjustment space, while preventing the drone and the main body from colliding with the target object to be cleaned, thereby enabling the cleaning of different target objects.

[0036] In this embodiment, the main body 2.1 is connected to the bottom of the drone 1 through a connecting structure. The connecting structure can be a connecting frame or a connecting plate. For example, multiple sets of connecting parts are provided on the connecting frame or connecting plate. By providing multiple sets of connecting parts, it can be connected to different drones 1. The connecting parts can be connecting holes provided on the connecting frame or connecting plate. Multiple sets of connecting holes are provided in different positions. Fixed holes are provided on the drone 1. During use, the fixed holes are aligned with the connecting holes, and the fixing bolts are screwed into the connecting holes and the fixing holes to fix the drone 1 to the connecting frame or connecting plate. The connecting structure can also be other structures, such as a locking component with adjustable size. By adjusting the locking gap of the locking component, the locking component can be locked and fixed on different models of drones 1.

[0037] In this embodiment, the extension member 2.2 is disposed on one side of the main body 2.1. The length of the extension member 2.2 can be fixed or adjustable, such as by making it an adjustable rod. This allows the length of the extension member 2.2 to be adjusted according to the usage environment and the target cleaning object, thus meeting the cleaning requirements. The cleaning structure 2.3 is disposed on the extension member 2.2. At the end, the cleaning structure 2.3 can be a cleaning disc 2.4 or a cleaning nozzle. The main body 2.1 includes a drive unit and a control unit. The control unit is paired with a remote control, and the drive unit is controlled by the control unit. The cleaning structure 2.3 is connected to the drive unit through a transmission structure. Thus, the operation of the drive unit can be controlled by the operation of the remote control. When the drive unit is working, the cleaning structure 2.3 is driven by the drive unit to rotate or reciprocate relative to the surface of the target object to be cleaned. During the movement, the cleaning structure 2.3 cleans the surface of the target object. The main body 2.1 may also include a water tank 3.1 and a water spray assembly 3 connected to the water tank 3.1. The water spray assembly 3 is also connected to the control unit. The water tank 3.1 can store the water or cleaning liquid required for cleaning. The water spray assembly 3 can spray water onto the target object or the cleaning structure 2.3. Thus, the water spray assembly 3 and the cleaning structure 2.3 work together to improve the cleaning effect on the target object.

[0038] In this embodiment, the control unit is used to receive control signals transmitted by the remote controller and adjust and control the operation of the cleaning structure 2.3 and the water spray assembly 3. The control unit can be a PLC controller in the prior art or other control structures.

[0039] This invention provides a drone high-altitude cleaning device. The cleaning mechanism 2 includes a body 2.1 for connecting to a drone 1. The body 2.1 can be installed on different models of drones 1. After use, the body 2.1 can be disassembled, thereby improving the efficiency of the cleaning mechanism 2. The extension 2.2 on the body 2.1 has a certain length, so that the cleaning structure 2.3 on the extension 2.2 can clean different target objects in different environments.

[0040] In a preferred embodiment of the present invention, the system further includes a water storage tank 3.1 and a water spray assembly 3 connected to the water storage tank 3.1. The water storage tank 3.1 is fixedly connected to the drone 1 or the main body 2.1. The water spray assembly 3 includes a water spray element 3.2 disposed on the extension member 2.2, which sprays water onto the cleaning structure 2.3 or the target object to be cleaned. The water storage tank 3.1 stores water and is connected to the drone 1 or the main body 2.1 via a fastener. The water spray element 3.2 includes a water spray pipe disposed within the extension member 2.2 and a nozzle disposed at the end of the water spray pipe. The nozzle can correspond to the cleaning structure 2.3, so that during use, the nozzle sprays water onto the cleaning structure 2.3. Water can also be sprayed onto one side of the cleaning structure 2.3, allowing water to be sprayed onto the target object. The cleaning structure 2.3 then directly cleans the target object. A water pump 3.3 is also installed on the main body 2.1. The water spraying component 3.2 is connected to the water storage tank 3.1 via the water pump 3.3. When the water pump 3.3 is working, water in the water storage tank 3.1 is delivered to the water pump 3.3, which then sprays the water from the water spraying component 3.2. The water pump 3.3 is controlled by the control unit. The operation control of the water pump 3.3 is a common structure in the prior art and will not be described in detail.

[0041] In the preferred embodiment of the present invention, the cleaning structure 2.3 is driven by the driving unit to perform a rotational cleaning motion. The cleaning structure 2.3 includes a cleaning disc 2.4, which is rotatably disposed at the end of the extension member 2.2. A flexible cleaning part is provided on the side of the cleaning disc 2.4 away from the extension member 2.2. The flexible cleaning part can be made of flexible materials such as sponge or cloth. During use, the cleaning disc 2.4 is driven by the driving unit to perform a rotational motion, and the flexible cleaning part rotates on the surface of the target object to achieve cleaning of the surface of the target object. When the cleaning of one position of the target object is completed, the drone 1 flies to the next position to continue cleaning until the target object is completely cleaned. During the cleaning process, when the drone 1 is flying, the cleaning disc 2.4 can be in a rotating working state or in a non-working state.

[0042] In the embodiments provided by the present invention, preferably, the drive unit includes a drive motor, which has at least two different speeds. The cleaning disc 2.4 is connected to the drive motor via a transmission component. The transmission component can be a rotating drive rod rotatably disposed inside the extension 2.2, or other structures that realize motor transmission in the prior art. The speed of the cleaning disc 2.4 can be adjusted by controlling the drive motor.

[0043] In the preferred embodiment provided by the present invention, a mounting frame 4 is also included, which is fixedly connected to the UAV 1. The main body 2.1 is mounted on the mounting frame 4. The mounting frame 4 is formed by multiple rods connected to each other. The rods are preferably made of a lightweight material with the required hardness, such as rods made of carbon fiber. This satisfies the requirements for the installation of the main body 2.1 and the cleaning structure 2.3, and also reduces the weight of the mounting frame 4, making it easier for the UAV 1 to carry and fly. Multiple sets of connecting parts are provided on the mounting frame 4, which can be connected to different models of UAV 1.

[0044] In a preferred embodiment of the present invention, the device further includes an angle adjustment component 5. The drive unit and the extension member 2.2 are synchronously rotatably connected to the body 2.1. The angle adjustment component 5 is mounted on the body 2.1 or the drone 1 and is used to drive the extension member 2.2 to rotate to adjust the cleaning angle. An installation component is provided on the fixed frame 4. The extension member 2.2 includes a connecting rod made of carbon fiber, which is connected to the drive unit. The drive unit is connected to the installation component through a rotating connector. The angle adjustment component 5 includes an electric push rod 5.1, which is connected to the extension member 2.2. The electric push rod 5.1 is controlled by the control unit. The extension and retraction of the electric push rod 5.1 drives the extension member 2.2 and the drive unit to rotate on the fixed frame 4, thereby adjusting the position of the cleaning structure 2.3.

[0045] In another preferred embodiment of the present invention, a counterweight adjustment component 6 is further included, which is disposed within the water storage tank 3.1. The counterweight adjustment component 6 can adjust the center of gravity position of the water storage tank 3.1 according to the water volume stored in the water storage tank 3.1. Since the extension member 2.2 has a certain length, the extension member 2.2 and the cleaning structure 2.3... The water tank 3.1's position is adjusted during installation to ensure it balances the extension 2.2 and cleaning structure 2.3, preventing them from affecting the drone's balance. However, as the cleaning structure 2.3 cleans the target object, the water level in the tank gradually decreases, reducing its balancing effect on the extension 2.2 and cleaning structure 2.3. This causes the drone's center of gravity to tilt towards the extension 2.2, affecting its flight. To address this, a counterweight adjustment component 6 is installed within the tank 3.1, allowing its center of gravity to adjust according to changes in water level. This can be achieved by offsetting the tank 3.1 from the extension 2.2 or the cleaning structure 2.3. On one side, in the initial stage, the water tank 3.1 is full of water. At this time, the center of gravity of the water tank 3.1 is located in the center of the water tank 3.1. As the amount of water in the water tank 3.1 decreases, the counterweight adjustment component 6 causes the center of gravity of the water tank 3.1 to gradually shift away from the extension 2.2. In this way, although the weight of the water in the water tank 3.1 decreases, the position of the center of gravity of the water tank 3.1 shifts accordingly (the distance between the center of gravity of the water tank 3.1 and the center of gravity of the UAV 1 increases). The water tank 3.1 can still achieve mutual balance between the extension 2.2 and the cleaning structure 2.3, ensuring that the extension 2.2 and the cleaning structure 2.3 do not affect the balance of the UAV 1.

[0046] In another embodiment of the present invention, preferably, the counterweight adjustment assembly 6 includes an elastic restoring member 6.2 and a rotating adjustment plate 6.1 rotatably connected inside the water storage tank 3.1. A water storage bag 3.1.1 is disposed inside the water storage tank 3.1. When the weight of the water storage bag 3.1.1 increases, it correspondingly drives the rotating adjustment plate 6.1 to rotate forward toward the extension member 2.2. During the process of the weight of the water storage bag 3.1.1 decreasing, the elastic restoring member 6.2 can correspondingly drive the rotating adjustment plate 6.1 to rotate in the opposite direction to the forward rotation. The water storage bag 3.1.1 is disposed inside the water storage tank 3.1 and is used to store water. The rotating adjustment plate 6.1 includes a free side 6.1.2 and a rotating side 6.1.3 opposite to each other. The water storage bag 3.1.1 is rotatably connected to the bottom of the water storage tank 3.1 via a rotating connector. The bottom of the bag rests on the bottom plate of the water storage tank 3.1 and the rotating adjusting plate 6.1. The rotating connector includes a rotating shaft 6.1.1 located on the rotating side 6.1.3. An mounting groove is provided at the bottom of the water storage tank 3.1. The rotatable connection is located within the mounting groove. The elastic restoring element 6.2 includes a torsion spring 6.2.1, which is positioned between the rotating shaft 6.1.1 and the mounting groove. The torsion spring 6.2.1 and the rotation adjustment plate 6.1 are arranged such that, during the filling of the water storage bag 3.1.1, the pressure of the water storage bag 3.1.1 on the rotation adjustment plate 6.1 gradually increases, driving the rotation adjustment plate 6.1 to rotate, causing its free side 6.1.2 to move towards the extension element 2.2. This movement of the rotation adjustment plate 6.1 is a forward rotational motion. The torsion spring 6.2.1 rotates elastically during this process. When the water storage bag 3.1.1 is full... After water is added, the pressure of the water-storing soft bag 3.1.1 on the rotating adjusting plate 6.1 is at its maximum, the position of the rotating adjusting plate 6.1 is at its lowest, and the elastic force of the torsion spring 6.2.1 is at its maximum. As the water in the water-storing soft bag 3.1.1 gradually decreases, the pressure of the water-storing soft bag 3.1.1 on the rotating adjusting plate 6.1 gradually decreases. Under the action of the torsion spring 6.2.1, the rotating adjusting plate 6.1 will be driven to rotate gradually, causing the free side 6.1.2 to move away from the extension member 2.2, and the position of the free side 6.1.2 will gradually rise. This movement of the rotating adjusting plate 6.1 is a reverse rotation. During this movement, the water-storing soft bag 3.1.1... The bottom shape changes as the position of the rotating adjustment plate 6.1 changes, and the water gradually flows to the water storage bag 3.1.1 on the side away from the extension 2.2, so that the water is gradually stored in the water storage tank 3.1 on the side away from the extension 2.2. The center of gravity of the water storage tank 3.1 shifts to the side away from the extension 2.2, and the distance between the center of gravity of the water storage tank 3.1 and the center of gravity of the UAV 1 gradually increases, thereby achieving a balancing effect on the extension 2.2 and the cleaning structure 2.3.It should be noted that due to fluctuations in water volume and changes in the length of the extension 2.2, this embodiment may not be able to precisely balance the center of gravity onto the geometric center of gravity of the UAV (such as the geometric center of gravity of multiple rotors), but it can delay and reduce the magnitude of the center of gravity deviation.

[0047] In another embodiment of the present invention, preferably, a water storage cavity for mounting the water storage bag 3.1.1 is provided inside the water storage tank 3.1. The side wall of the water storage cavity is provided with a moving side wall for the rotation adjustment plate 6.1 to move. A limiting part 6.8 is provided on the moving side wall. The limiting part 6.8 is used to limit the movement stroke of the reverse rotation of the rotation adjustment plate 6.1. The limiting part 6.8 can be a limiting block or a limiting protrusion structure. In this way, when the free side 6.1.2 of the rotation adjustment plate 6.1 moves to the position corresponding to the limiting part 6.8, the rotation adjustment plate 6.1 stops moving. At this time, the included angle between the rotation adjustment plate 6.1 and the bottom of the water storage tank 3.1 is between 70 degrees and 85 degrees, that is, the continued movement of the rotation adjustment plate 6.1 does not affect the shape of the water storage bag 3.1.1.

[0048] In another embodiment of the present invention, the counterweight adjustment assembly 6 further includes a counterweight block 6.4 and a driving member 6.5. A trigger member 6.3 is provided inside the water storage tank 3.1, and the trigger member 6.3 is located at the end position of the reverse rotation of the rotating adjustment plate 6.1. The cleaning process of the cleaning structure 2.3 on the target cleaning object includes a continuous first stage and a second stage. In the first stage, as the water volume in the water storage bag 3.1.1 decreases, the rotating adjustment plate 6.1 rotates in the opposite direction to change the center of gravity position of the water storage tank 3.1, so that the water storage tank 3.1 and the extension member 2.2 are basically balanced. After the reverse rotation of the rotating adjustment plate 6.1 ends, the second stage begins. In this stage, because the water volume in the water storage tank 3.1 is small and gradually decreases, the water in the water storage bag 3.1.1 cannot keep the water storage tank 3.1 and the extension member 2.2 balanced. At this time, the driving member 6.5 and the counterweight block 6.4 cooperate with each other, that is, the driving member 6.5 drives the counterweight block 6.4. The water tank 3.1 is moved away from the extension member 2.2 to adjust its center of gravity, so that the water tank 3.1 can maintain a basic balance with the extension member 2.2.

[0049] In another embodiment of the present invention, preferably, the driving component 6.5 includes a motor 6.6 and a lead screw 6.7 connected to the motor 6.6. A mounting cavity 7.2.1 is provided at the bottom of the water storage tank 3.1. Both the motor 6.6 and the lead screw 6.7 are mounted in the mounting cavity 7.2.1. The lead screw 6.7 is arranged horizontally. A counterweight 6.4... The motor 6.6 and the lead screw 6.7 are connected via a lead screw 6.7, which drives the counterweight 6.4 to reciprocate linearly at a preset speed. A trigger 6.3 is mounted on the limiting part 6.8. When the free side 6.1.2 of the rotating adjusting plate 6.1 contacts the limiting part 6.8, the trigger 6.3 is activated. At the end of the first stage, the trigger 6.3 is activated, entering the second stage. The lead screw 6.7 rotates at the preset speed, correspondingly driving the counterweight 6.4 to move away from the extension member 2.2. By setting the rotation of the motor 6.6, the counterweight 6.4 moves at the preset speed, meaning the movement time of the counterweight 6.4 coincides with the time of the second stage. Thus, in the second stage, the counterweight 6.4 can move against the water storage tank 3.1. The center of gravity is adjusted. When the second stage is over, the water in the water tank 3.1 is sprayed out. At this time, the distance between the counterweight 6.4 and the extension 2.2 is the largest. The counterweight 6.4 and the water tank 3.1 can balance the extension 2.2 and the cleaning structure 2.3, effectively avoiding any impact on the flight of the UAV 1.

[0050] In another embodiment of the present invention, preferably, the water spray assembly 3 includes a water pump 3.3, and a water spray pipe connected to the water spray assembly 3.2 is provided inside the extension member 2.2. The water pump 3.3 is connected to the water spray pipe through a connecting pipe. During the movement of the extension member 2.2, the water spray pipe and the connecting pipe are always connected. The water spray pipe is located inside the extension member 2.2, and the connecting pipe can be a connecting hose. Thus, after the cleaning direction of the extension member 2.2 is adjusted, the direction of the water spray assembly 3.2 is adjusted accordingly.

[0051] In another embodiment of the present invention, preferably, a balancing component 7 is also included. The pump shaft 3.3.1 of the water pump 3.3 has an extension 7.1 extending out of the housing. The balancing component 7 is disposed on the extension 7.1. A motor is connected to the water pump 3.3, and the water pump 3.3 operates under the drive of the motor. The water pump 3.3 includes a pump housing, in which the pump shaft 3.3.1 and an impeller disposed on the pump shaft 3.3.1 are disposed. One end of the pump shaft 3.3.1 extends out of the housing and is provided with the extension 7.1. The extension 7.1 and the pump shaft 3.3.1 are integrally formed. The balancing component 7 is disposed on the side of the water pump 3.3 away from the extension 2.2. During operation, the water pump 3.3 generates axial thrust and a reaction force from the water jet, both of which affect the balance of the UAV 1 during flight. The balancing component 7 is connected to the extension 7.1 of the water pump 3.3 to balance the pump shaft 3.3.1. A balancing force is provided in the opposite direction to the axial thrust. This balancing force can balance the two axial forces mentioned above, so that the pump shaft 3.3.1 can operate smoothly, effectively avoiding frequent axial movement of the pump shaft 3.3.1 and reducing the impact on the flight of the UAV 1.

[0052] In another embodiment of the present invention, preferably, the balancing assembly 7 includes a slidingly fitted outer cylinder 7.6 and an inner cylinder 8. A mounting base 7.2 is provided on the fixing frame 4. The mounting base 7.2 has a connected mounting cavity 7.2.1 and a moving cavity 7.2.2. The radial dimension of the moving cavity 7.2.2 is larger than the radial dimension of the mounting cavity 7.2.1. Both the inner cylinder 8 and the outer cylinder 7.6 are located within the mounting cavity 7.2.1. The moving cavity 7.2.2 is located on the side of the mounting cavity 7.2.1 closest to the water pump 3.3. The inner cylinder 8 is fixedly mounted on the mounting base 7.2.2. Inside, the outer tube 7.6 slides over the inner tube 8. Both the outer tube 7.6 and the inner tube 8 are coaxial with the pump shaft 3.3.1. The extension 7.1 includes a piston rod 7.3 connected to the pump shaft 3.3.1. The piston rod 7.3 is fixedly mounted on an annular plate 7.4, which is slidably connected within the motion chamber 7.2.2. A spring 7.5 is fixedly mounted on the side wall connecting the motion chamber 7.2.2 and the mounting chamber 7.2.1. The other end of the annular plate 7.4 is fixedly connected to the spring 7.5. Thus, when the piston rod 7.3 moves under the axial thrust of the pump shaft 3.3.1, the annular plate 7.4 presses against the spring 7.5, and the spring 7.5 provides a balancing force on the annular plate 7.4 in the opposite direction to the axial thrust, enabling the pump shaft 3.3.1 to run smoothly.

[0053] In another embodiment of the present invention, preferably, the inner tube 8 forms a cylindrical working chamber 8.1 coaxial with the pump shaft 3.3.1. A cylindrical storage chamber 8.2 is provided inside the side wall of the inner tube 8, surrounding the working chamber 8.1. A connecting port is provided at the end of the inner tube 8 away from the water pump 3.3, and the storage chamber 8.2 and the working chamber 8.1 are connected through the connecting port. A compression valve plate 8.3 is provided on the side of the working chamber 8.1 near the connecting port. A through hole is provided at the end of the inner tube 8 near the water pump 3.3. The outer tube 7.6 is fixedly connected to the piston rod 7.3. The end of the piston rod 7.3 is located inside the working chamber 8.1, and the piston rod 7.3 is sealed to the through hole through a dynamic sealing structure. A piston head 8.5 and a recovery valve plate 8.4 are provided at the end of the piston rod 7.3. The radial dimension of the piston head 8.5 is smaller than the radial dimension of the working chamber 8.1. The valve body 9 of the recovery valve plate 8.4... The dimensions of the restoration valve plate 84 match the radial dimensions of the working chamber 8.1, thus dividing the working chamber 8.1 into a first chamber 8.1.1 and a second chamber 8.1.2. A compression valve plate 8.3 is disposed within the first chamber 8.1.1, allowing communication between the first chamber 8.1.1 and the storage chamber 8.2. Both the compression valve plate 8.3 and the restoration valve plate 8.4 include a valve body 9, which has a first normally open hole 9.1 and a second normally open hole 9.2. An inlet to the first normally open hole 9.1 is provided on one side of the valve body 9. A first fluid-passing plate 9.3 is provided on the first fluid-passing plate 9.3 to open or close the second normally open hole 9.2. A second fluid-passing plate 9.4 is provided on the other side of the valve body 9 to open or close the second normally open hole 9.2. Both the first fluid-passing plate 9.3 and the second fluid-passing plate 9.4 are connected to elastic elements. Under the action of hydraulic pressure, the liquid flows through the first normally open hole 9.1 or the second normally open hole 9.2, which can open the first fluid-passing plate 9.3 and the second fluid-passing plate 9.4 accordingly. When the hydraulic pressure is removed, the elastic elements cause the first fluid-passing plate 9.3 and the second fluid-passing plate 9.4 to close the first normally open hole 9.1 or the second normally open hole 9.2 accordingly.

[0054] In another embodiment of the present invention, preferably, during use, the working chamber 8.1 of the balancing component 7 is filled with oil, that is, both the first chamber 8.1.1 and the second chamber 8.1.2 are filled with oil, and the storage chamber 8.2 is filled with a certain amount of oil. The storage chamber 8.2 also contains air. The amount of oil in the storage chamber 8.2 needs to ensure that the working chamber 8.1 is always filled with oil during operation. The storage chamber 8.2 will intermittently experience negative air and high pressure states due to the inflow and outflow of oil. During operation, the movement of the piston rod 7.3 includes a compression stroke and a recovery stroke. During the compression stroke, the piston rod 7.3 moves into the interior of the working chamber 8.1 under the axial thrust of the pump shaft 3.3.1. The piston head 8.5 and the recovery valve plate 8.4 move, thereby reducing the volume of the first chamber 8.1.1, increasing the oil pressure, and allowing the working oil to flow through the recovery valve plate 8.4. The first normally open hole 9.1 on the piston plate 8.3 opens the first fluid guide plate 9.3, allowing fluid to flow into the second chamber 8.1.2. Simultaneously, because the second chamber 8.1.2 is partially occupied by the piston rod 7.3, the increased volume in the second chamber 8.1.2 is less than the decreased volume in the first chamber 8.1.1. Therefore, some working oil flows into the storage chamber 8.2 through the first normally open hole 9.1 of the compression valve plate 8.3, pushing open the first fluid guide plate 9.3. During the compression stroke, the spring 7.5 is simultaneously compressed and has elastic force. Thus, the hydraulic pressure and the spring 7.5 together provide a balancing force to the piston rod 7.3 in the opposite direction to the axial thrust, thereby enabling the pump shaft 3.3.1 to operate smoothly and reducing the impact on the flight of the UAV 1. When the axial thrust received by the piston rod 7.3 decreases, the spring 7.5... Under the elastic force, the piston head 8.5 and the recovery valve plate 8.4 move into the second chamber 8.1.2, increasing the oil pressure in the second chamber 8.1.2. The working oil in the second chamber 8.1.2 then flows into the first chamber 8.1.1 through the second normally open hole 9.2 on the recovery valve plate 8.4, pushing open the second fluid-passing plate 9.4. Similarly, due to the presence of the piston rod 7.3, the working oil flowing from the second chamber 8.1.2 is insufficient to fill the increased volume of the second chamber 8.1.2. Under the pressure difference, the working oil in the storage chamber 8.2 flows into the first chamber 8.1.1 through the second normally open hole 9.2 on the compression valve plate 8.3, pushing open the second fluid-passing plate 9.4. During the above process...

[0055] In another embodiment of the present invention, a guide plate 9.5 may be further provided on the recovery valve plate 8.4. The guide plate 9.5 is provided at the oil inflow end of the first normally open hole 9.1. A guide groove corresponding to the first normally open hole 9.1 is provided on the guide plate 9.5. The guide groove is connected to the first normally open hole 9.1, but there is a certain guide angle between the guide groove and the first normally open hole 9.1. Thus, when the oil flows into the first normally open hole 9.1 through the guide groove, the force generated by the oil flow acts on the valve body 9 of the recovery valve plate 8.4. The force is guided to the piston rod 7.3 and the inner cylinder 8 through the recovery valve plate 8.4, so that the compression stroke length of the piston rod 7.3 is reduced, and the balancing effect of the balancing assembly 7 on the pump shaft 3.3.1 is improved.

[0056] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A drone aerial cleaning device comprising a cleaning mechanism, characterized in that, The cleaning mechanism comprises a body connected to the unmanned aerial vehicle, a driving unit and an extension member provided on the body, and a cleaning structure provided on the extension member, which is driven by the driving unit to move relative to the surface of the target cleaning object. Further comprising a water storage tank fixedly connected to the unmanned aerial vehicle or the body, and a counterweight adjusting assembly arranged in the water storage tank, which adjusts the center of gravity of the water storage tank according to the amount of water stored in the water storage tank, the counterweight adjusting assembly comprising an elastic restoring member and a rotating adjusting plate rotatably connected to the inside of the water storage tank, and the water storage tank is provided with a water storage soft bag, and the rotating adjusting plate rotates forward or reversely with the increase or decrease of the amount of water stored in the water storage soft bag. The increase of the gravity of the water storage soft bag drives the rotating adjusting plate to rotate forward to the side of the extension member, and the decrease of the gravity of the water storage soft bag drives the rotating adjusting plate to rotate reversely; the elastic restoring member comprises a torsional spring, and the torsional spring and the rotating adjusting plate are arranged such that, during the water storage process of the water storage soft bag, the pressure of the water storage soft bag on the rotating adjusting plate gradually increases, driving the rotating adjusting plate to rotate and move the free side of the rotating adjusting plate to the side of the extension member, and the rotating adjusting plate rotates forward during this process, and the torsional spring has elasticity corresponding to the rotation; when the amount of water in the water storage soft bag gradually decreases, the pressure of the water storage soft bag on the rotating adjusting plate gradually decreases, and the torsional spring drives the rotating adjusting plate to gradually rotate, so that the free side of the rotating adjusting plate moves away from the extension member, and the position of the free side gradually rises, and the rotating adjusting plate rotates reversely during this process.

2. The drone aerial cleaning device of claim 1, wherein, Further comprising a water spraying assembly connected to the water storage tank, the water spraying assembly comprising a water spraying member arranged on the extension member, which sprays water to the cleaning structure or the target cleaning object.

3. The drone aerial cleaning device of claim 1, wherein, The cleaning structure is driven by the driving unit to rotate and clean.

4. The drone aerial cleaning device of claim 1, wherein, Further comprising a fixing frame fixedly connected to the unmanned aerial vehicle, and the body is mounted on the fixing frame.

5. The drone aerial cleaning device of claim 1, wherein, The driving unit comprises a driving motor, which has at least two different rotating speeds.

6. The drone aerial cleaning device of claim 1, wherein, The driving unit and the extension member are synchronously rotatably connected to the body.

7. The drone aerial cleaning device of claim 6, wherein, Further comprising an angle adjusting assembly arranged on the body or the unmanned aerial vehicle, which drives the extension member to rotate to adjust the cleaning angle. Further comprising an angle adjusting assembly arranged on the body or the unmanned aerial vehicle, which drives the extension member to rotate to adjust the cleaning angle.

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