Electrified water washing device carried on basis of unmanned aerial vehicle

Abstract

The invention discloses an unmanned aerial vehicle carrying-based electrified water washing device, which comprises an unmanned aerial vehicle, and further comprises a water tank, a high-pressure pump, a water spray pipe and a nozzle, the water tank and the high-pressure pump are fixedly mounted on the unmanned aerial vehicle, and the water tank and the high-pressure pump are connected through a pipeline; the water spraying pipe is fixedly installed on the high-pressure pump and extends in the direction away from one side face of the water tank, the nozzle is installed at the end of the water spraying pipe, and a retaining auxiliary mechanism is further arranged on the other side, opposite to the water spraying pipe, of the water tank. According to the method, the dirty insulator found in operation and maintenance can be washed with live water in time, the line does not need to be powered off, a method that live working personnel climb a pole to replace the insulator does not need to be adopted, the power supply reliability of the power transmission line is greatly improved, the working risk of the working personnel is reduced, and the working efficiency is improved. And the method has great practicability for daily operation and maintenance management and control of management and operation and maintenance departments.

Description

Technical Field

[0001] The present invention relates to the technical field of line maintenance devices, and in particular to an unmanned aerial vehicle-mounted charged water flushing device. Background Art

[0002] Due to the complexity of transmission line channels, the porcelain, glass and other types of insulators used in power transmission are affected by the external environment, such as rainy and foggy weather, bird droppings and bird nest residues, which cause the surface of the insulator to become dirty and the insulation performance to decline. As a result, the insulator string may be broken down at any time during the operation of the line, and the line may discharge to the tower, causing the risk of line tripping. For dirty insulators, the general treatment method is to wipe the insulators manually by climbing the pole during power outages and replace the insulators under power. The traditional treatment method has the disadvantages of increasing the length of power outages and the high risk of live operations, which reduces the reliability of the system and increases the operating risks of operators. Summary of the invention

[0003] In view of the above shortcomings, the present invention provides a live water flushing device based on a drone, which can solve the problems of long power outage time, high risk of live working, high labor intensity, etc. caused by the method of manually climbing the pole for wiping during power outage.

[0004] In order to achieve the above object, the present invention adopts the following technical scheme:

[0005] An electric water flushing device based on an unmanned aerial vehicle comprises a unmanned aerial vehicle, a water tank, a high-pressure pump, a water spray pipe and a nozzle. The water tank and the high-pressure pump are fixedly mounted on the unmanned aerial vehicle, the water tank and the high-pressure pump are connected by a pipeline, the water spray pipe is fixedly mounted on the high-pressure pump and the water spray pipe extends in a direction away from a side of the water tank, the nozzle is mounted at the end of the water spray pipe, and the water tank is further provided with a retreat-stopping auxiliary mechanism on the other side relative to the water spray pipe.

[0006] Furthermore, the anti-retraction auxiliary mechanism includes an anti-retraction member, and the anti-retraction member has a certain area on a side away from the water spray pipe.

[0007] Furthermore, the retaining member is a flexible sheet-like structure that can be unfolded.

[0008] Furthermore, the anti-retreat auxiliary mechanism also includes an expansion mechanism, which is installed on the water tank. The anti-retreat member, which is an expandable flexible sheet-like structure, is installed on the expansion mechanism and can be expanded or folded under the action of the expansion mechanism.

[0009] Furthermore, the expansion mechanism includes a cylinder, a piston rod, an elastic member, an expansion rod and a connecting rod. The cylinder is fixedly mounted on the water tank, and the cylinder is connected to the high-pressure pump through a pipeline. The piston rod is slidably arranged on the cylinder, and the sliding direction of the piston rod is consistent with the extension direction of the water spray pipe. There are multiple expansion rods, one end of the multiple expansion rods is hinged to the outer periphery of the cylinder, and the other end corresponds to and is hinged to one end of the multiple connecting rods. The other end of the multiple connecting rods is hinged to the end of the piston rod away from the cylinder. The elastic member is mounted on the piston rod so that the piston rod has a tendency to move toward the inside of the cylinder.

[0010] The stop member surrounds the plurality of expansion rods so that when the piston rod extends and drives the expansion rods to expand, the stop member can be driven to expand.

[0011] Furthermore, the elastic member is a tension spring, which is sleeved on the piston rod, with one end connected to the end of the piston rod away from the cylinder, and the other end connected to the cylinder.

[0012] Furthermore, the nozzle is an adjustable nozzle.

[0013] Furthermore, the pipeline connecting the cylinder and the high-pressure pump is connected to the water spray pipe.

[0014] Furthermore, it also includes a shielding box, a power supply and an electrical control unit. The shielding box is fixedly installed at the bottom of the drone, and the high-pressure pump, the power supply and the electrical control unit are installed in the shielding box.

[0015] Furthermore, the electrical control unit located in the shielding box is independent of the drone.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The operation mode of the drone equipped with a water flushing device of the present invention can carry out timely live water flushing of dirty insulators found during operation and maintenance, without the need to shut down the line or use live workers to climb poles to replace insulators. This greatly improves the power supply reliability of the transmission line, reduces the operating risks of workers, and is extremely practical for daily operation and maintenance control of management and operation and maintenance departments.

[0018] An anti-retreat auxiliary mechanism is provided, which is used to assist in preventing the drone from retreating and other situations during cleaning operations to avoid imbalance of the drone, that is, to prevent the charged water flushing device carried by the drone of the present invention from becoming unbalanced during cleaning operations and affecting normal cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0020] Figure 1 It is a structural schematic diagram of the charged water flushing device carried by a drone according to the present invention from one perspective;

[0021] Figure 2 It is a structural schematic diagram of the charged water flushing device carried by a drone according to the present invention from another perspective;

[0022] Figure 3 It is a structural schematic diagram of the stop-retreat auxiliary mechanism of the present invention from one viewing angle;

[0023] Figure 4 It is a structural schematic diagram of the stop-retreat auxiliary mechanism of the present invention from another perspective.

[0024] Among them, the marks shown in the figure are: 10-UAV; 20-water tank; 40-water spray pipe; 50-nozzle; 60-retraction auxiliary mechanism; 61-retraction part; 62-cylinder; 63-piston rod; 64-elastic part; 65-opening rod; 66-connecting rod; 70-shielding box. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, 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.

[0028] Please refer to Figures 1 to 4 A preferred embodiment of the present invention provides a charged water flushing device based on an unmanned aerial vehicle, including an unmanned aerial vehicle 10, a water tank 20, a high-pressure pump, a water spray pipe 40, a nozzle 50 and an anti-retreat auxiliary mechanism 60. The water tank 20, the high-pressure pump, the water spray pipe 40, the nozzle 50 and the anti-retreat auxiliary mechanism 60 form the main body of the charged water flushing device to realize charged water flushing.

[0029] In this exemplary embodiment, Figure 1 and Figure 2 As shown, the drone 10 can directly adopt a drone with a certain load capacity of the prior art, so as to be able to carry a water tank 20, a high-pressure pump, a water spray pipe 40, a nozzle 50 and a stop-retreat auxiliary mechanism 60, etc. to fly and realize the flushing operation. Under the premise of satisfying the flushing operation as much as possible, the drone 10 should be as light and compact as possible to adapt to the operation in a certain space. It is understandable that the drone 10 can also be customized or developed based on its own needs. For example, it is preferred to use large drones such as M300 and T60 for airborne applications. This series of products has been widely used in power grids. The use of this system model does not require users to change their usage habits or relearn the driving method. The series of product models can be equipped with RTK modules to make it resistant to electromagnetic interference, and the hovering accuracy reaches 1cm, and the payload capacity reaches more than 6kg, which can meet the use requirements.

[0030] The water tank 20 and the high-pressure pump are fixedly mounted on the drone 10. In this exemplary embodiment, the water tank 20 and the high-pressure pump are fixedly mounted on the drone 10 and are fixedly arranged at the bottom of the drone 10. The water tank 20 and the high-pressure pump are connected by a pipeline, and a certain amount of water or cleaning solvent is stored in the water tank 20 so that it can be sprayed out under the driving action of the high-pressure pump.

[0031] The water spray pipe 40 is fixedly mounted on the high-pressure pump and extends in a direction away from a side of the water tank 20. When the high-pressure pump is running, the water or cleaning solvent stored in the water tank 20 can be sprayed out through the water spray pipe 40. The water spray pipe 40 has the function of extending the working position. That is, due to the limitation of the working space and environment, it is difficult for the drone 10 to get very close to the position to be cleaned. At this time, through the function of the water spray pipe 40, the water spray position can be aimed at the insulator while keeping the drone 10 away from the insulator for a certain distance.

[0032] The nozzle 50 is installed at the end of the water spray pipe 40. The nozzle 50 can adjust the water outlet mode to meet the use requirements in different forms. For example, for less stubborn dirt, it can be cleaned by a relatively atomized spraying method, and for relatively stubborn dirt, it can be rinsed in a relatively concentrated manner. The nozzle 50 is an adjustable nozzle to meet the needs of different scenarios. In a preferred embodiment, the nozzle 50 is rotated when spraying water to adjust the shape of the water mist, and the spray distance changes accordingly, generally 1m to 6m away. The spray angle adopts a ball-jointed atomizing nozzle to assist in adjusting the angle, and the water output can reach 6L / min.

[0033] Determined by the usage scenario, the drone 10 is preferably lightweight and miniaturized, and its load capacity will not be very large. Due to the load capacity of the drone 10, the volume and weight of the water pump are limited. The maximum injection pressure of a conventional water pump is insufficient and cannot meet the requirements of flushing the insulators, especially some very stubborn stains that have accumulated over time. Based on this, a higher injection pressure is required to effectively flush the insulators. The present invention preferably uses a high-pressure pump powered by high-pressure air, which can spray water columns at high pressure. It can leave the part that provides the compressed air source on the ground, so the volume and weight will not be too large to affect the drone. It can obtain a 1MPa or even higher injection pressure to meet the use requirements.

[0034] In this exemplary embodiment, the water spray pipe 40 is a carbon fiber tube with a length of 1.4 m. The carbon fiber tube is lightweight and ensures that the water spray is not disturbed by the wind flow of the drone wings. The capacity of the water tank 20 is 1000-2000 ml.

[0035] In the present invention, the high-pressure pump is further provided with a back-stop auxiliary mechanism 60 on the other side relative to the water tank 20. The back-stop auxiliary mechanism 60 is used to assist in preventing the drone 10 from backing up and other situations during the cleaning operation to prevent the drone 10 from being unbalanced, that is, to prevent the charged water flushing device based on the drone of the present invention from being unbalanced during the cleaning operation and affecting normal cleaning. In this exemplary embodiment, the back-stop auxiliary mechanism 60 is a structure with a certain area during operation, and the structure with a certain area can interact with the air. When the drone 10 has a backing up, its interaction with the air can avoid or alleviate the backing up to a certain extent, and can keep the drone stable to avoid the instability of the charged water flushing device during operation affecting the cleaning operation.

[0036] When the drone-mounted live water flushing device of the present invention is implemented, the drone 10 moves the water tank 20, high-pressure pump, water spray pipe 40, nozzle 50 and anti-retraction auxiliary mechanism 60 thereon to the vicinity of the insulator to be cleaned, the nozzle 50 is aimed at the insulator to be cleaned, and the high-pressure pump is started to drive the water in the water tank 20 out of the water tank 20 and sprayed out from the nozzle 50 through the water spray pipe 40, thereby realizing timely live water flushing of the dirty insulator.

[0037] Considering that when cleaning relatively stubborn dirty insulators, a water column with a larger jet pressure is required for cleaning, the water column with a larger jet pressure will give the drone 10 a backward force, and since the water spray pipe 40 has a certain length, the drone 10 may also shake when moving backward. On the one hand, the backward or even unbalanced drone affects the normal cleaning operation, and in severe cases may even cause the drone 10 to crash; on the other hand, the nozzle 50 originally aimed at the dirty insulator cannot be aimed at the dirty insulator, and due to the limited capacity of the water tank and the short water spraying time, even if the position and direction of the nozzle 50 can be adjusted later, a large amount of water is wasted, and the water in a single water tank 20 may not be able to achieve the expected flushing amount, and multiple cleanings have to be performed. Multiple cleanings require the drone 10 to move back and forth to replenish water, etc., which greatly prolongs the action time and intensity. The charged water flushing device carried by a drone of the present invention is provided with an anti-retreat auxiliary mechanism 60 on the drone 10. The anti-retreat auxiliary mechanism 60 is located on the other side of the high-pressure pump relative to the water spray pipe 40. When the water spray pipe 40 sprays water through the nozzle 50, the anti-retreat auxiliary mechanism 60 with a certain area during operation can interact with the air through the structure with a certain area to avoid or alleviate the retreat of the drone to a certain extent, and can keep the drone stable to avoid instability of the charged water flushing device during operation that affects the cleaning operation.

[0038] In this exemplary embodiment, Figures 1 to 4As shown, the anti-retreat auxiliary mechanism 60 includes an anti-retreat member 61, and the anti-retreat member 61 has a certain area on the side facing away from the water spray pipe 40. The anti-retreat member 61 acts on the air through the certain area to avoid or alleviate the retreat of the drone and keep the drone stable. Preferably, the anti-retreat member 61 is a flexible sheet-like structure that can be unfolded, such as a flexible plastic film with a certain toughness, which is light and has high strength. It has a certain area when unfolded and has a certain resistance when it acts on the air, which is used to play the role of anti-retreat. In a preferred embodiment, the anti-retreat member 61 is a concave structure with high sides and low middle when unfolded, and the concave is concave in the direction of the water tank 20. Through this concave structure, the anti-retreat effect can be better, and this effect can also minimize the resistance of the drone 10 to move forward.

[0039] In some other preferred embodiments, the anti-retreat assist mechanism 60 may also be an active driving mechanism, such as an air gun, where the air outlet of the anti-retreat assist mechanism 60 of the air gun is opposite to the direction of the nozzle 50. During cleaning, when the nozzle 50 sprays water, the anti-retreat assist mechanism 60 of the air gun sprays air at the same time, and the force generated by the jet of air offsets the force generated by the nozzle 50 spraying water, so as to avoid or alleviate the retreat of the UAV and keep the UAV stable.

[0040] In this exemplary embodiment, the backstop auxiliary mechanism 60 also includes an expansion mechanism, which is installed on the water tank 20. The backstop member 61, which is a flexible sheet-like structure that can be expanded, is installed on the expansion mechanism and can be expanded or folded under the action of the expansion mechanism. During operation, when it is necessary to avoid or slow down the backstop, the backstop member 61 is expanded through the expansion mechanism, and when it is not necessary to stop the backstop, such as during normal flight movement, the backstop member 61 is folded through the expansion mechanism, and the folded backstop member 61 will not affect the flight movement of the drone.

[0041] In an exemplary embodiment, the expansion mechanism includes a cylinder 62, a piston rod 63, an elastic member 64, an expansion rod 65 and a connecting rod 66. The cylinder 62 is fixedly mounted on the water tank 20, and the cylinder 62 is connected to the high-pressure pump through a pipeline so that water can be injected into the cylinder 62 when the high-pressure pump is started. The piston rod 63 is slidably arranged on the cylinder 62, and when water is injected into the cylinder 62, the piston rod 63 can be pushed to slide outward. The sliding direction of the piston rod 63 is consistent with the extension direction of the water spray pipe 40, that is, the piston rod 62 can extend in a direction away from the water spray pipe 40. There are multiple opening rods 65, such as 4, which are evenly distributed on the outer periphery of the cylinder 62. One end of the multiple opening rods 65 is hinged to the outer periphery of the cylinder 62, and the one end is the end close to the water tank 20. The other end corresponds to and is hinged to one end of multiple connecting rods 66, that is, the number of connecting rods 66 is consistent with the number of opening rods 65. The other end of the multiple connecting rods 66 is hinged to the end of the piston rod 63 away from the cylinder 62. At this time, when the piston rod 63 is extended, it can drive the multiple opening rods 65 to open. The elastic member 64 is installed on the piston rod 63 so that the piston rod 63 has a tendency to move into the cylinder 62. That is, when the high-pressure pump stops injecting water into the cylinder 62, under the action of the elastic member 64, the piston rod 63 can move into the cylinder 62 to reset. Exemplarily, the elastic member 64 is a tension spring, which is sleeved on the piston rod 63 , with one end connected to the end of the piston rod 63 away from the cylinder 62 , and the other end connected to the cylinder 62 .

[0042] The stop member 61 is surrounded by multiple expansion rods 65 so that when the piston rod 63 extends and drives the expansion rods 65 to expand, the stop member 61 can be driven to expand. The expanded stop member 61 has a certain area and has a certain resistance when interacting with the air, which is used to play a stop role; and when the piston rod 63 retracts, it can be folded to avoid affecting the flight movement of the drone as much as possible.

[0043] The pipeline connecting the cylinder 62 and the high-pressure pump is connected to the water spray pipe 40. When the high-pressure pump is in operation, water can be injected into the cylinder 62 while spraying water through the water spray pipe 40, so as to drive the piston rod 63 to extend and expand the stop member 61. When the flushing stops (the high-pressure pump stops), the piston rod 63 retracts under the action of the elastic member 64, and the water in the cylinder 62 flows out through the water spray pipe 40, and the stop member 61 is folded. That is, this setting can make the stop member 61 automatically expand at the same time during the flushing operation, and automatically fold again after the cleaning stops.

[0044] Exemplarily, the charged water flushing device carried by the drone also includes a shielding box 70, a power supply and an electrical control unit. The shielding box 70 is fixedly installed at the bottom of the drone 10, and the high-pressure pump, the power supply and the electrical control unit are installed in the shielding box 70. The electrical control unit includes a control module, a communication module, etc. to realize signal interaction with the ground terminal, such as interaction with the ground station wireless communication unit or a handheld terminal, and can control the high-pressure pump, the anti-retraction auxiliary mechanism 60, etc. according to the instructions of the ground terminal. The high-pressure pump, the power supply and the electrical control unit are installed in the shielding box 70 to ensure the reliability of the charged cleaning.

[0045] Based on the near-electric protection mechanism during live cleaning of drones, it is integrated into the cleaning device to ensure that the power grid and the drone itself will not be impacted or damaged during operation. The present invention can ensure that the live cleaning device can safely operate on the transmission line by adopting isolation, current limiting, overvoltage protection and other technical means. The main method adopted is the anti-interference design of the electrical control system, including power battery protection and other designs to avoid overheating, over-discharge, high temperature and other situations. The entire device is integrated in a mounted metal shielding box, and an antenna, switch, and charging port are reserved. The communication method of the device is similar to that of the drone, and the live water flushing operation is controlled by a remote control.

[0046] In an exemplary embodiment, the live water flushing device cooperates with the camera, obstacle avoidance, GPS positioning and other functions of the drone 10 to assist the operator in controlling the operation and real-time monitoring of the site. The video acquisition and transmission device consists of a drone gimbal and an image transmission system. The visible light camera adopts an integrated design of camera and gimbal, has the characteristics of light weight and high stability, and can be quickly docked with the drone platform. In addition, the gimbal camera can also output high-definition video to the image transmission system, which is transmitted back to the ground for determining the real-time position of the drone.

[0047] In an exemplary embodiment, the control system of the charged water cleaning plate in the shielding box 70 is independently controlled and operated by the UAV flight control system, so as to realize independent control of the cleaning system and the flight system, so as to facilitate the deployment of the cleaning device on different types of UAVs. The control system should have stability, accuracy and reliability to ensure that the UAV can accurately perform the cleaning task and realize remote monitoring and control.

[0048] In an exemplary embodiment, the UAV 10 is a multi-rotor UAV equipped with a high-definition camera, which can transmit the collected video to the ground station wireless communication unit through the airborne wireless communication unit, and the ground station personnel can monitor the flight status of the multi-rotor UAV in real time; at the same time, the control system of the live water cleaning device and the UAV flight control system are independently controlled and operated, and cooperate with each other to perform operations.

[0049] The drone-mounted charged water flushing device of the present invention has significantly improved operating efficiency compared with traditional methods and greatly ensures the personal safety of operators. The modular design makes it easy to use and maintain.

[0050] Through ground control, remote automatic water spraying and image acquisition of target insulators are realized. Compared with traditional manual methods, when using drone-based live water flushing of insulators, fewer inspection personnel and operating tools are required, and the operation time is shortened. The device is not restricted by geographical location and tower height. Operators only need to control the drone on the ground to perform inspection operations. The labor intensity is low, no power outage is required, and the risks brought by operators entering strong electric fields for live inspection operations are avoided, providing a guarantee for the safe and stable operation of the power grid.

[0051] At the same time, a retreat-preventing auxiliary mechanism is provided, which is used to assist in preventing the UAV from retreating and other situations to prevent the UAV from becoming unbalanced during cleaning operations, that is, to prevent the UAV-mounted charged water flushing device of the present invention from becoming unbalanced during cleaning operations and affecting normal cleaning.

[0052] The operation mode of the drone equipped with the water flushing device of the present invention can timely flush dirty insulators found during operation and maintenance with live water, without the need to shut down the line or use live workers to climb poles to replace insulators, which greatly improves the power supply reliability of the transmission line, reduces the operating risks of the workers, and has great practicality for the daily operation and maintenance control of the management and operation and maintenance departments. The introduction of this device can improve the efficiency of insulator cleaning, is of great significance to the safe operation of the power system, and has great prospects for promotion and application.

[0053] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An electric water flushing device based on a drone, comprising a drone (10), characterized in that: The invention also comprises a water tank (20), a high-pressure pump, a water spray pipe (40) and a nozzle (50); the water tank (20) and the high-pressure pump are fixedly mounted on the unmanned aerial vehicle (10); the water tank (20) and the high-pressure pump are connected via a pipeline; the water spray pipe (40) is fixedly mounted on the high-pressure pump and the water spray pipe (40) extends in a direction away from a side of the water tank (20); the nozzle (50) is mounted at the end of the water spray pipe (40); and the water tank (20) is further provided with a back-stop auxiliary mechanism (60) on the other side relative to the water spray pipe (40).

2. The charged water flushing device based on a drone according to claim 1 is characterized in that: The anti-retraction auxiliary mechanism (60) comprises an anti-retraction member (61), and the anti-retraction member (61) has a certain area on the side facing away from the water spray pipe (40).

3. The charged water flushing device based on a drone according to claim 2 is characterized in that: The retaining member (61) is a flexible sheet-like structure that can be unfolded.

4. The charged water flushing device based on a drone according to claim 3 is characterized in that: The anti-retraction auxiliary mechanism (60) also includes an expansion mechanism, which is installed on the water tank (20). The anti-retraction member (61) is an expandable flexible sheet-like structure installed on the expansion mechanism and can be expanded or folded under the action of the expansion mechanism.

5. The charged water flushing device based on a drone according to claim 4 is characterized in that: The expansion mechanism comprises a cylinder (62), a piston rod (63), an elastic member (64), an expansion rod (65) and a connecting rod (66); the cylinder (62) is fixedly mounted on the water tank (20); the cylinder (62) is connected to the high-pressure pump via a pipeline; the piston rod (63) is slidably arranged on the cylinder (62); and the sliding direction of the piston rod (63) is consistent with the extension direction of the water spray pipe (40); the expansion rod (65) is connected to the water spray pipe (40) via a pipeline; 5) are multiple, one end of the multiple spreading rods (65) is hinged to the outer periphery of the cylinder (62), and the other end corresponds to and is hinged to one end of the multiple connecting rods (66), the other end of the multiple connecting rods (66) is hinged to one end of the piston rod (63) away from the cylinder (62), and the elastic member (64) is installed on the piston rod (63) so that the piston rod (63) has a tendency to move into the cylinder (62); The stop member (61) surrounds the plurality of expansion rods (65) so that when the piston rod (63) extends and drives the expansion rods (65) to expand, the stop member (61) can be driven to expand.

6. The charged water flushing device based on a drone according to claim 5 is characterized in that: The elastic member (64) is a tension spring, which is sleeved on the piston rod (63), one end of which is connected to the end of the piston rod (63) away from the cylinder (62), and the other end of which is connected to the cylinder (62).

7. The charged water flushing device based on a drone according to claim 1 is characterized in that: The nozzle (50) is an adjustable nozzle.

8. The charged water flushing device based on a drone according to claim 5 is characterized in that: The pipeline connecting the cylinder (62) and the high-pressure pump is connected to the water spray pipe (40).

9. The charged water flushing device based on a drone according to any one of claims 1 to 8, characterized in that: It also includes a shielding box (70), a power supply and an electrical control unit. The shielding box (70) is fixedly mounted on the bottom of the drone (10), and the high-pressure pump, the power supply and the electrical control unit are mounted in the shielding box (70).

10. The charged water flushing device based on a drone according to claim 9 is characterized in that: The electrical control unit located in the shielding box (70) is independent of the drone (10).

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