A kind of intelligent inspection device and inspection method of power grid

Abstract

The present invention relates to the technical field of inspection drones, and specifically to an intelligent inspection device for a power grid and an inspection method thereof, comprising an unmanned aerial vehicle body, wherein an intelligent communication module for establishing video transmission with a remote control end is arranged inside the unmanned aerial vehicle body, an inspection camera is arranged on the unmanned aerial vehicle body, the inspection camera collects video images and transmits them to the intelligent communication module, a Z-shaped air pipe is fixedly arranged on the unmanned aerial vehicle body, and a front thick pipe is connected to one side of the Z-shaped air pipe; the intelligent inspection device for a power grid of the present invention can clean dust or foreign matter, and at the same time, when there is no buffer moving space behind the unmanned aerial vehicle, the beam nozzle corresponding to the rear thick pipe can be used to spray air, so that the gas reaction forces on the front and rear sides of the unmanned aerial vehicle are neutralized and offset.

Description

Technical Field

[0001] The present invention relates to the technical field of inspection drones, and in particular to an intelligent power grid inspection device and an inspection method thereof. Background Art

[0002] Power grid inspection refers to the regular, planned, organized inspection, monitoring, evaluation and maintenance of power systems and equipment. Its main purpose is to timely discover and eliminate hidden dangers of power equipment failures to ensure the safe operation and reliable supply of the power system. Power grid inspection includes inspections and checks of power plants, substations, transmission lines, distribution devices and various types of power equipment. Due to the development of drone technology, it is no longer necessary to inspect power grids erected at high altitudes by climbing personnel. Inspections by drones can greatly improve efficiency and safety. However, in the actual inspection process, the inspected locations are often covered by dust or foreign objects. Traditional inspection drones cannot handle the above situation and it is difficult to observe the situation under the dust or foreign objects. In addition, when traditional jet equipment is directly installed on drones for jet cleaning, the drones will be buffered and moved backwards by the reaction force. In the complex environment of the power grid system, when there is no buffering movement space at the rear, the drone will collide with the rear obstacles and crash. Summary of the invention

[0003] The purpose of the present invention is to provide a power grid intelligent inspection device and an inspection method thereof to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent inspection device for a power grid, comprising an unmanned aerial vehicle, wherein an intelligent communication module for establishing video transmission with a remote control end is arranged inside the unmanned aerial vehicle, an inspection camera is arranged on the unmanned aerial vehicle, and the inspection camera collects video images and transmits them to the intelligent communication module, a Z-shaped air pipe is fixedly arranged on the unmanned aerial vehicle, a front thick pipe is arranged on one side of the Z-shaped air pipe, and a rear thick pipe is arranged on the other side of the Z-shaped air pipe, the front thick pipe is coaxially corresponding to the rear thick pipe, and beam nozzles are arranged at the ends of the front thick pipe and the rear thick pipe, respectively, a switching solenoid valve is arranged in the rear thick pipe, and the on-off of the rear thick pipe can be controlled by the switching solenoid valve, a main circuit solenoid valve is arranged in the Z-shaped air pipe, and the on-off of the Z-shaped air pipe can be controlled by the main circuit solenoid valve, and a compressed gas cylinder is detachably installed on the Z-shaped air pipe, and compressed gas is supplied to the inside of the Z-shaped air pipe by the compressed gas cylinder.

[0005] The end of the Z-shaped air pipe is connected to a cache hood, which is a cylindrical cavity structure with a closed top and an open bottom. A connecting groove is provided on the top of the cache hood, and the cache hood is connected to the Z-shaped air pipe through the connecting groove.

[0006] A one-way sealing piece is arranged in the connecting trough, and the one-way sealing piece seals the end of the Z-shaped air pipe. A sealing piece spring is arranged below the one-way sealing piece, and the one-way sealing piece is connected to the inner wall surface of the connecting trough through the sealing piece spring, and the sealing piece spring applies an upward elastic thrust to the one-way sealing piece.

[0007] A piston disc body is airtightly and slidingly arranged in the cache hood, a limiting bottom ring is fixedly arranged at the bottom opening of the cache hood, a return spring is arranged between the limiting bottom ring and the piston disc body, a breathing filter membrane is sealed on the inner side of the limiting bottom ring, and the breathing filter membrane can filter and separate air and dust.

[0008] An output pipe is connected to the top of the cache dome, a lens hood is fixedly provided on the inspection camera, the lens hood sets the lens cover of the inspection camera inside, an air intake pipe is connected to the lens hood, and the air intake pipe is connected to the output pipe through an air pipe.

[0009] An outer frame plate is arranged inside the Z-shaped air pipe, an inner frame groove is opened through the outer frame plate, a pressing inner plate is arranged in the inner frame groove, the outer surface of the pressing inner plate and the inner surface of the inner frame groove are in sealing contact, and a C-shaped bracket is fixedly arranged on the outer frame plate.

[0010] An outer tube connecting pipe is fixedly arranged on the C-shaped bracket, and the outer tube connecting pipe is inserted through the side wall of the Z-shaped air pipe and extends to the outside of the Z-shaped air pipe. The outer tube connecting pipe is in airtight contact with the Z-shaped air pipe, and a fixed end plate is fixedly arranged at one end of the outer tube connecting pipe located outside the Z-shaped air pipe, and a fuel liquid storage box is fixedly arranged on the fixed end plate. A push spray valve is fixedly connected to the bottom of the fuel liquid storage box, and a push inner rod is arranged on the push spray valve.

[0011] The pressing inner rod is sealed and inserted inside the outer tube connecting pipe, one end of the pressing inner rod is fixedly installed on the pressing inner plate, an atomizing nozzle is fixedly arranged inside the Z-shaped air pipe, a flexible connecting pipe is connected between the pressing spray valve and the atomizing nozzle, when the pressing inner rod is axially squeezed and driven in the direction of the pressing spray valve, the atomizing nozzle can spray the liquid in the fuel storage box in the form of mist, an electric spark head is embedded and fixed inside the Z-shaped air pipe, a linear drive is fixedly arranged outside the Z-shaped air pipe, the telescopic shaft of the linear drive is fixedly installed on the fixed end plate, and the fixed end plate and the outer tube connecting pipe can be driven to move along the axial direction of the outer tube connecting pipe through the linear drive.

[0012] A drone support arm is fixedly arranged outside the drone body, a brushless motor is arranged on the drone support arm, and a rotating blade is arranged on the brushless motor.

[0013] A patrol inspection method for a power grid intelligent patrol inspection device, the method comprising the following steps:

[0014] Step 1: Ground staff controls the flight of the unmanned aerial vehicle through the remote control terminal. The inspection camera collects video images and transmits them to the remote control terminal for display through the intelligent communication module. The staff observes the displayed video to conduct power grid inspection.

[0015] Step 2: When the inspection position is covered by dust or foreign matter, the drone body is controlled to move so that the corresponding beam nozzle on the front thick pipe faces the inspection position;

[0016] Step 3: Control the main circuit solenoid valve to open and then close, so that the beam nozzle sprays a section of compressed gas to clean the inspection position;

[0017] Step 4: When there is no buffer movement space behind the drone body, in the above step 3, the main circuit solenoid valve is opened while controlling the switching solenoid valve to open, thereby maintaining the stability of the drone body and reducing the impact of the reaction thrust on the drone body.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The intelligent power grid inspection device of the present invention can clean the dust or foreign matter when the inspected position is covered by dust or foreign matter during the inspection process, so as to facilitate visual inspection. At the same time, through the cooperation of the rear thick pipe and the switching solenoid valve and other structures, when there is no buffer movement space behind the UAV, the beam nozzle corresponding to the rear thick pipe can be used to spray air, so that the gas reaction forces on the front and rear sides of the UAV are neutralized and offset, thereby reducing the influence of the reaction force on the flight state of the UAV and avoiding the collision of the UAV with foreign matter at the rear. When there is buffer movement space at the rear, the rear thick pipe is automatically closed to save the consumption of compressed gas.

[0020] By cooperating with the cache hood and lens hood and other structures, after the beam nozzle is jetted and cleaned, the internal structure of the cache hood can be used to automatically store a certain amount of positive-pressure gas, and continuously input into the lens hood, so that the lens hood maintains a positive-pressure air outlet state for a period of time. When the beam nozzle jet stirs up dust, the positive-pressure air outlet protection of the lens hood can reduce dust adhesion to the lens of the inspection camera without affecting the video capture of the inspection camera, thereby greatly reducing the degree of dust adhesion to the lens of the inspection camera during multiple operations.

[0021] By cooperating with the outer frame plate, the fuel liquid storage box, the atomizing nozzle and other structures, the jet impact pressure of the beam nozzle can be enhanced under specific circumstances. The outer frame plate and the pressing inner plate are coordinated with the pressing spray valve and other structures, so that the pressure of the compressed gas is used to squeeze and drive the pressing spray valve, and the fuel liquid in the fuel liquid storage box is atomized and ignited by the electric spark head, so that an explosion occurs at the junction of the Z-shaped air pipe, the front thick pipe and the rear thick pipe. Driven by the explosion, the jet impact pressure of the beam nozzle is greatly increased; and the fuel mist is burned out at the junction of the Z-shaped air pipe, the front thick pipe and the rear thick pipe, and the gas ejected from the beam nozzle has sufficient safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle.

[0024] Figure 3 for Figure 2 A magnified schematic diagram of area A in the middle.

[0025] Figure 4 It is a side view of the overall structure of the present invention.

[0026] Figure 5 for Figure 4 Enlarged schematic diagram of area B in the middle.

[0027] Figure 6 It is a three-dimensional half-section view of the overall structure of the present invention.

[0028] Figure 7 for Figure 6 Enlarged schematic diagram of area C in the middle.

[0029] Figure 8 for Figure 6 Enlarged schematic diagram of area D in the middle.

[0030] Fig. 9 It is a three-dimensional half-section side view of the overall structure of the present invention.

[0031] In the figure: 1, unmanned aerial vehicle; 2, inspection camera; 3, Z-shaped air pipe; 4, front thick pipe; 5, rear thick pipe; 6, beam nozzle; 7, switching solenoid valve; 8, main circuit solenoid valve; 9, compressed gas cylinder; 301, buffer round cover; 302, connecting sink; 303, one-way sealing piece; 304, sealing piece shrapnel; 305, piston disc; 306, limit bottom ring; 307, reset spring; 308, breathing filter; 309, output pipeline; 310, lens cover ; 311, air intake duct; 312, outer frame plate; 313, inner frame groove; 314, press inner plate; 315, C-type bracket; 316, outer tube connecting pipe; 317, fixed end plate; 318, fuel storage box; 319, press spray valve; 320, press inner rod; 321, atomizing nozzle; 322, flexible connecting pipe; 323, spark head; 324, linear drive; 101, drone arm; 102, brushless motor; 103, rotating blades. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments 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.

[0033] See also Figures 1 to 9 The present invention provides a technical solution: a power grid intelligent inspection device, such as Figure 6 As shown in, it includes an unmanned aerial vehicle body 1, the interior of the unmanned aerial vehicle body 1 is provided with an intelligent communication module for establishing video transmission with a remote control end, an inspection camera 2 is provided on the unmanned aerial vehicle body 1, the inspection camera 2 collects video images and transmits them to the intelligent communication module, a Z-shaped air pipe 3 is fixedly provided on the unmanned aerial vehicle body 1, one side of the Z-shaped air pipe 3 is connected with a front thick pipe 4, the other side of the Z-shaped air pipe 3 is connected with a rear thick pipe 5, the front thick pipe 4 is coaxially corresponding to the rear thick pipe 5, the ends of the front thick pipe 4 and the rear thick pipe 5 are respectively connected with beam nozzles 6, a switching solenoid valve 7 is provided in the rear thick pipe 5, the on-off of the rear thick pipe 5 can be controlled by the switching solenoid valve 7, a main circuit solenoid valve 8 is provided in the Z-shaped air pipe 3, the on-off of the Z-shaped air pipe 3 can be controlled by the main circuit solenoid valve 8, and a compressed gas cylinder 9 is detachably installed on the Z-shaped air pipe 3, and compressed gas is supplied to the inside of the Z-shaped air pipe 3 by the compressed gas cylinder 9.

[0034] like Figure 8As shown in the figure, the end of the Z-shaped air pipe 3 is connected with a buffer dome 301, which is a cylindrical cavity structure with a closed top and an open bottom. A connecting sink 302 is provided on the top of the buffer dome 301, and the buffer dome 301 is connected with the Z-shaped air pipe 3 through the connecting sink 302. A one-way sealing piece 303 is provided in the connecting sink 302, and the one-way sealing piece 303 blocks the end of the Z-shaped air pipe 3. A sealing piece shrapnel 304 is provided below the one-way sealing piece 303, and the one-way sealing piece 303 is connected to the inner wall surface of the connecting sink 302 through the sealing piece shrapnel 304, and the sealing piece shrapnel 304 applies an upward elastic thrust to the one-way sealing piece 303.

[0035] A piston disc body 305 is airtightly and slidingly arranged in the cache circular cover 301, a limiting bottom ring 306 is fixedly arranged at the bottom opening of the cache circular cover 301, a return spring 307 is arranged between the limiting bottom ring 306 and the piston disc body 305, and a breathing filter membrane 308 is sealed on the inner side of the limiting bottom ring 306. The breathing filter membrane 308 can filter and separate air and dust, so as to prevent external dust from entering the bottom of the piston disc body 305 when the piston disc body 305 moves up and down, thereby shortening the wear life of the structure.

[0036] An output pipe 309 is connected to the top of the cache dome 301, and a lens hood 310 is fixedly provided on the inspection camera 2. The lens hood 310 sets the lens cover of the inspection camera 2 inside it, and an air intake pipe 311 is connected to the lens hood 310, and the air intake pipe 311 is connected to the output pipe 309 through an air pipe.

[0037] An outer frame plate 312 is provided inside the Z-shaped air pipe 3. An inner frame groove 313 is provided through the outer frame plate 312. A pressing inner plate 314 is provided in the inner frame groove 313. The outer surface of the pressing inner plate 314 is in sealed contact with the inner surface of the inner frame groove 313. A C-shaped bracket 315 is fixedly provided on the outer frame plate 312. An outer tube connecting pipe 316 is fixedly provided on the C-shaped bracket 315. The outer tube connecting pipe 316 is inserted through the side wall of the Z-shaped air pipe 3 and extends to the outside of the Z-shaped air pipe 3. The outer tube connecting pipe 316 is in airtight contact with the Z-shaped air pipe 3. A fixed end plate 317 is fixedly provided at one end of the outer tube connecting pipe 316 located outside the Z-shaped air pipe 3. A fuel liquid storage box 318 is fixedly provided on the fixed end plate 317. A pressing spray valve 319 is fixedly provided at the bottom of the fuel liquid storage box 318. A pressing inner rod 320 is provided on the pressing spray valve 319.

[0038] The pressing inner rod 320 is sealed and inserted into the interior of the outer tube connecting tube 316, and one end of the pressing inner rod 320 is fixedly installed with the pressing inner plate 314. An atomizing nozzle 321 is fixedly arranged inside the Z-shaped air pipe 3, and a flexible connecting pipe 322 is arranged between the pressing spray valve 319 and the atomizing nozzle 321. When the pressing inner rod 320 is axially squeezed and driven in the direction of the pressing spray valve 319, the atomizing nozzle 321 can spray the liquid in the fuel liquid storage box 318 in the form of mist. There are two options for pressing the spray valve 319. One is to draw the liquid in the fuel liquid storage box 318, pressurize it into the atomizing nozzle 321, and atomize it when sprayed out from the atomizing nozzle 321; the other is to draw the liquid in the fuel liquid storage box 318 and directly atomize it. The fuel mist is input into the atomizing nozzle 321 through the flexible connecting pipe 322, and then sprayed out through the atomizing nozzle 321. Both are common atomization methods in the prior art.

[0039] An electric spark head 323 is embedded and fixed inside the Z-shaped air tube 3, and a linear driver 324 is fixedly arranged outside the Z-shaped air tube 3. The telescopic shaft of the linear driver 324 is fixedly installed on the fixed end plate 317. The linear driver 324 can drive the fixed end plate 317 and the outer tube connecting tube 316 to move along the axial direction of the outer tube connecting tube 316. The linear driver 324 is composed of a motor, a gear, a rack and other structures. The motor drives the gear to rotate, and the gear drives the rack to move linearly, thereby driving the fixed end plate 317 and the outer tube connecting tube 316 to move along the axial direction of the outer tube connecting tube 316.

[0040] A drone arm 101 is fixedly disposed outside the drone body 1 , a brushless motor 102 is disposed on the drone arm 101 , and a rotating blade 103 is disposed on the brushless motor 102 .

[0041] A patrol inspection method for a power grid intelligent patrol inspection device, the method comprising the following steps:

[0042] Step 1: Ground staff controls the flight of the unmanned aerial vehicle 1 through the remote control terminal, and the inspection camera 2 collects video images and transmits them to the remote control terminal for display through the intelligent communication module. The staff observes the displayed video to conduct power grid inspection;

[0043] Step 2: When the inspection position is covered by dust and foreign matter, the drone body 1 is controlled to move so that the corresponding beam nozzle 6 on the front thick pipe 4 faces the inspection position;

[0044] Step 3: Control the main circuit solenoid valve 8 to open and then close, so that the beam nozzle 6 sprays a section of compressed gas to clean the inspection position;

[0045] Step 4: When there is no buffer movement space behind the unmanned aerial vehicle body 1, in the above step 3, the main circuit solenoid valve 8 is opened while the switching solenoid valve 7 is controlled to be opened, so as to maintain the stability of the unmanned aerial vehicle body 1 and reduce the influence of the reaction thrust on the unmanned aerial vehicle body 1.

[0046] When the intelligent power grid inspection device of the present invention needs to perform jet cleaning on the inspection position, the beam nozzle 6 corresponding to the front thick pipe 4 is controlled to be directed toward the inspection position, and the main circuit solenoid valve 8 is controlled to be opened for 0.5 seconds to 1 second and then closed. During the period when the main circuit solenoid valve 8 is opened, the compressed gas in the compressed gas cylinder 9 enters the front thick pipe 4 through the Z-shaped air pipe 3, and is finally ejected through the beam nozzle 6 to perform jet cleaning on the inspection position. At this time, the unmanned aerial vehicle body 1 is subjected to the reaction thrust of the airflow, so that the unmanned aerial vehicle body 1 moves backward in a buffering manner.

[0047] When there are obstacles such as electric wires and power grid supports behind the unmanned aerial vehicle 1, the switching solenoid valve 7 is controlled to be opened while the main circuit solenoid valve 8 is opened. At this time, the front thick pipe 4 and the rear thick pipe 5 on both sides of the unmanned aerial vehicle 1 simultaneously spray air through the beam nozzle 6, so that the reaction forces on both sides of the unmanned aerial vehicle 1 offset each other, reducing the influence of the reaction forces on the flight state of the unmanned aerial vehicle 1 and avoiding collision between the unmanned aerial vehicle 1 and foreign objects behind.

[0048] like Figure 6 and Figure 8 As shown in, when compressed gas is input into the Z-shaped air pipe 3, the interior of the Z-shaped air pipe 3 is in a high-pressure state, and the high-pressure gas pushes open the one-way sealing piece 303, pushing the piston disc body 305 downward, and when the beam nozzle 6 finishes jetting, the high pressure in the Z-shaped air pipe 3 disappears, and at this time the one-way sealing piece 303 automatically resets to a one-way closure, so that the airflow between the one-way sealing piece 303 and the piston disc body 305 is locked inside the buffer circular cover 301, and under the supporting elastic force of the reset spring 307, the gas locked inside the buffer circular cover 301 enters the air intake pipe 311 through the output pipe 309, so that the lens cover 310 is in a positive pressure air outlet state, and because the output pipe 309 and the air intake pipe 311 are small-diameter gas pipes, they play a beam role, allowing the gas to slowly enter the lens cover 310 at a small flow rate. Therefore, when the jet of the beam nozzle 6 stirs up dust, the positive pressure air outlet protection of the lens cover 310 can reduce the dust from adhering to the lens of the inspection camera 2 without affecting the video capture of the inspection camera 2.

[0049] like Figure 7 As shown in FIG. 1 , when the jet impact pressure of the beam nozzle 6 needs to be increased, the linear actuator 324 is controlled to contract, so that the fixed end plate 317, the outer tube connecting pipe 316 and the outer frame plate 312 move to the right, as shown in FIG. Figure 7As shown in the figure, the outer frame plate 312 moves to the right to seal the inside of the Z-shaped air pipe 3. When the compressed gas cylinder 9 inputs compressed gas into the inside of the Z-shaped air pipe 3, the compressed gas will push the pressing inner plate 314 to move leftward relative to the outer frame plate 312. At this time, the pressing inner rod 320 is axially squeezed, so that the pressing spray valve 319 is pressed, and the fuel liquid in the fuel storage box 318 is atomized and sprayed out through the atomizing nozzle 321. At the same time, the spark head 323 supplies power for ignition, detonating the fuel mist, and an explosion occurs at the junction of the Z-shaped air pipe 3, the front thick pipe 4 and the rear thick pipe 5. Driven by the explosion, the jet impact pressure of the beam nozzle 6 is greatly increased.

[0050] The fuel mist is completely burned at the junction of the Z-shaped gas pipe 3, the front thick pipe 4 and the rear thick pipe 5, and the gas ejected from the beam nozzle 6 is sufficiently safe. Of course, this function can also be disabled in some high-risk places.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent power grid inspection device, comprising an unmanned aerial vehicle (1), wherein an intelligent communication module for establishing video transmission with a remote control terminal is arranged inside the unmanned aerial vehicle (1), characterized in that: The unmanned aerial vehicle (1) is provided with an inspection camera (2), the inspection camera (2) collects video images and transmits them to an intelligent communication module, the unmanned aerial vehicle (1) is fixedly provided with a Z-shaped air pipe (3), one side of the Z-shaped air pipe (3) is connected to a front thick pipe (4), the other side of the Z-shaped air pipe (3) is connected to a rear thick pipe (5), the front thick pipe (4) and the rear thick pipe (5) are coaxially corresponding, the ends of the front thick pipe (4) and the rear thick pipe (5) are respectively connected to beam nozzles (6), and a switching solenoid valve (7) is provided in the rear thick pipe (5), and the switching solenoid valve (7) can control the rear thick pipe (5) to be able to control the rear thick pipe (5). The Z-shaped air pipe (3) is provided with a main circuit electromagnetic valve (8), and the main circuit electromagnetic valve (8) can control the opening and closing of the Z-shaped air pipe (3). A compressed gas cylinder (9) is installed on the Z-shaped air pipe (3), and compressed gas is supplied to the interior of the Z-shaped air pipe (3) through the compressed gas cylinder (9); a buffer round cover (301) is provided at the end of the Z-shaped air pipe (3), and the buffer round cover (301) is a cylindrical cavity structure with a closed top and an open bottom; a connecting sink (302) is provided at the top of the buffer round cover (301), and the buffer round cover (301) is connected to the Z-shaped air pipe (3) through the connecting sink (302). The communicating trough (302) is provided with a one-way sealing piece (303), the one-way sealing piece (303) blocks the end of the Z-shaped air pipe (3), a sealing piece shrapnel (304) is provided below the one-way sealing piece (303), the one-way sealing piece (303) is connected to the inner wall surface of the communicating trough (302) through the sealing piece shrapnel (304), and the sealing piece shrapnel (304) applies an upward elastic thrust to the one-way sealing piece (303); a piston disc body (305) is airtightly slidably provided in the buffering hood (301), a limiting bottom ring (306) is fixedly provided at the bottom opening of the buffering hood (301), and the limiting bottom ring (306) is 6) and the piston disc body (305), a return spring (307) is arranged between the inner side of the limiting bottom ring (306), and a breathing filter (308) is sealed and arranged, and the breathing filter (308) can filter and separate air and dust; the top of the cache hood (301) is connected to an output pipe (309), and a lens cover (310) is fixedly arranged on the inspection camera (2), and the lens cover of the inspection camera (2) is arranged inside the lens cover (310), and an air intake pipe (311) is connected to the lens cover (310), and the air intake pipe (311) is connected to the output pipe (309) through an air pipe.

2. The intelligent power grid inspection device according to claim 1, characterized in that: An outer frame plate (312) is arranged inside the Z-shaped air pipe (3), an inner frame groove (313) is provided through the outer frame plate (312), a pressing inner plate (314) is arranged in the inner frame groove (313), an outer surface of the pressing inner plate (314) and an inner surface of the inner frame groove (313) are in sealing contact, and a C-shaped bracket (315) is fixedly arranged on the outer frame plate (312).

3. The intelligent power grid inspection device according to claim 2, characterized in that: An outer tube connecting tube (316) is fixedly arranged on the C-shaped bracket (315), and the outer tube connecting tube (316) is inserted through the side wall of the Z-shaped air pipe (3) and extends to the outside of the Z-shaped air pipe (3). The outer tube connecting tube (316) is in airtight contact with the Z-shaped air pipe (3). A fixed end plate (317) is fixedly arranged at one end of the outer tube connecting tube (316) located outside the Z-shaped air pipe (3), and a fuel liquid storage box (318) is fixedly arranged on the fixed end plate (317). A push spray valve (319) is fixedly connected to the bottom of the fuel liquid storage box (318), and a push inner rod (320) is arranged on the push spray valve (319).

4. The intelligent power grid inspection device according to claim 3, characterized in that: The pressing inner rod (320) is sealed and inserted into the interior of the outer tube connecting tube (316); one end of the pressing inner rod (320) is fixedly mounted to the pressing inner plate (314); an atomizing nozzle (321) is fixedly arranged inside the Z-shaped air pipe (3); a bendable connecting pipe (322) is arranged between the pressing spray valve (319) and the atomizing nozzle (321); when the pressing inner rod (320) is axially squeezed and driven in the direction of the pressing spray valve (319), the atomizing nozzle (321) is moved. The nozzle (321) can spray the liquid in the fuel liquid storage box (318) in the form of mist. An electric spark head (323) is embedded and fixed inside the Z-shaped air pipe (3). A linear driver (324) is fixedly arranged outside the Z-shaped air pipe (3). The telescopic shaft of the linear driver (324) is fixedly installed on the fixed end plate (317). The fixed end plate (317) and the outer tube connecting pipe (316) can be driven by the linear driver (324) to move along the axial direction of the outer tube connecting pipe (316).

5. The intelligent power grid inspection device according to claim 1, characterized in that: A drone support arm (101) is fixedly arranged outside the drone body (1), a brushless motor (102) is arranged on the drone support arm (101), and a rotating blade (103) is arranged on the brushless motor (102).

6. The inspection method of a power grid intelligent inspection device according to any one of claims 1 to 5, characterized in that: The method comprises the following steps: Step 1: Ground staff controls the flight of the unmanned aerial vehicle (1) through the remote control terminal, and the inspection camera (2) collects video images and transmits them to the remote control terminal for display through the intelligent communication module. The staff observes the displayed video to conduct power grid inspection; Step 2: When the inspection position is covered by dust or foreign matter, the unmanned aerial vehicle (1) is controlled to move so that the corresponding beam nozzle (6) on the front thick tube (4) faces the inspection position; Step 3: Control the main circuit solenoid valve (8) to open and then close, so that the beam nozzle (6) sprays a section of compressed gas to clean the inspection position; Step 4: When there is no buffer movement space behind the unmanned aerial vehicle (1), in the above step 3, the main circuit solenoid valve (8) is opened while controlling the switching solenoid valve (7) to be opened, thereby maintaining the stability of the unmanned aerial vehicle (1) and reducing the impact of the reaction thrust on the unmanned aerial vehicle (1).

Images