Power transmission line distance measurement alarm maintenance galloping vehicle and use method thereof

Abstract

The invention discloses a distance-measuring alarm maintenance galloping vehicle for a power transmission line and a use method, and aims to solve the problems of low mounting precision and high safety risk of a spacer. The aerodyne comprises an aerodyne body, a distance measuring device, a processing device, a power device and a brake device, the aerodyne body is provided with a hook-shaped connecting assembly, the processing device is connected with an automatic brake module, and the brake device is provided with a manual module. When in use, the galloping vehicle is hoisted on a power transmission line, the mounting distance of the spacer is input, the distance measuring wheel drives the encoder to transmit data to the microprocessor to calculate the distance during movement, the alarm device is controlled to prompt and automatically brake according to the distance, and personnel can manually brake and mount. The device has the advantages that the defects of an existing measurement mode are overcome, and a safe and comfortable operation space is provided; ranging is accurate, and the structural design guarantees accuracy; the processing device is clear in prompt and good in measurement and installation connection; the power supply device guarantees endurance; the brake device is safe and reliable, effectively improves the installation accuracy and efficiency of the spacer, and reduces the safety risk.

Description

Technical Field

[0001] The present invention relates to the technical field of overhaul flying vehicles, in particular to a distance-measuring and alarm-overhaul flying vehicle for transmission lines and a usage method thereof. Background Art

[0002] Spacer dampers are generally installed between split conductors of transmission lines to fix the spacing between each split conductor, so as to prevent the conductors from whipping each other and suppress aeolian vibration and sub-span oscillation. The installation of spacer dampers needs to be carried out according to the designed spacing, and the existing measurement methods have prominent problems. Measuring with a measuring rope with distance marks, where the operator takes the flying vehicle with the rope to measure, has low efficiency. When the span is long, the rope is affected by gravity and wind, and it will generate an arc by itself, resulting in large measurement errors, heavy personnel load and high safety risks; for total station measurement, data needs to be converted on the ground to determine the position, the sight distance is limited, and frequent movement is required for large spans; although unmanned aerial vehicle measurement uses a high-precision distance measurement sensor, it cannot mark the position, has insufficient battery life, and is also affected by weather and airspace control. Moreover, the accuracy of the existing installation measurement methods is interfered by various factors, with high safety risks, complex operations, and poor connection between measurement and installation, affecting the accuracy and efficiency of spacer damper installation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the existing spacer damper installation has low accuracy and high safety risks.

[0004] To solve the above technical problem, the technical solution adopted by the present invention is: a distance-measuring and alarm-overhaul flying vehicle for transmission lines, including a flying vehicle main body, a distance measurement device fixed on the top of the flying vehicle main body, a processing device signal-connected to the distance measurement device, a power supply device and a braking device. A hook-shaped connection component for hanging on the wire is provided at the top end of the flying vehicle main body. The processing device controls and connects an automatic braking module of the braking device, and a manual braking module is also provided on the braking device.

[0005] Preferably, the flying vehicle main body is in a "well" shape. A seat assembly is hinged to the bottom of the flying vehicle main body. A foot pedal rod is fixedly connected to the bottom of the seat assembly. A limiting rod for the rotation of the seat assembly is provided at the bottom end of the flying vehicle assembly.

[0006] Preferably, the hook-shaped connection component includes a first protective cover and a second protective cover fixed on both sides of the top of the flying vehicle main body. Both the first protective cover and the second protective cover are in a U shape. Pulleys are rotatably provided inside the first protective cover and the second protective cover. An arc-shaped groove adapted to the top of the wire is provided on the outer peripheral surface of the pulley.

[0007] Preferably, fixing holes and fixing grooves for the top end of the flying vehicle body to penetrate through are respectively provided at the top and bottom of the first protective cover. Threaded holes for threaded connection with fixing bolts are formed in the inner side wall of the first protective cover. The pulley is rotatably connected to the fixing bolt. An adaption hole for the fixing bolt to penetrate through is formed in the outer peripheral surface of the top end of the flying vehicle body. The first protective cover and the second protective cover have the same structure.

[0008] Preferably, the distance measuring device and the processing device are respectively installed on the first protective cover and the second protective cover. The distance measuring device includes a second connecting shaft fixed on the first protective cover and a first connecting shaft hinged to the top end of the second connecting shaft. A distance measuring wheel is rotatably connected to the movable end of the first connecting shaft. The distance measuring wheel and the pulley are in the same vertical plane. An encoder is installed on the first connecting shaft, and the input shaft of the encoder is connected to the installation shaft of the distance measuring wheel.

[0009] Preferably, the distance measuring wheel includes an inner hub of the distance measuring wheel and a rubber outer ring of the distance measuring wheel arranged on the outer side surface of the inner hub of the distance measuring wheel. Anti-slip transverse grooves are provided on the outer peripheral surface of the rubber outer ring of the distance measuring wheel, and an arc groove is coaxially formed on the outer peripheral surface of the rubber outer ring of the distance measuring wheel.

[0010] Preferably, the processing device includes a microprocessor and an alarm device respectively fixed on the first installation shaft and the second protective cover. The microprocessor is in control connection with the alarm device. The alarm device includes a digital display, a buzzer, an LED lamp and function keys. The LED lamp includes a red lamp for prompting braking, a yellow lamp for prompting deceleration and a green lamp for prompting passage.

[0011] Preferably, the power supply device includes a lithium battery and a photovoltaic panel fixed on the top of the second protective cover.

[0012] Preferably, the braking device is fixed on the top of the flying vehicle body and is located in the middle of the hook-shaped connection assembly. The braking assembly includes a telescopic rod fixed on the top of the flying vehicle body, a rubber brake pad connected to the movable end of the telescopic rod, and a brake handle fixed in the middle of the flying vehicle body. A brake locking knob is provided at the fixed end of the brake handle. The telescopic rod is an electric telescopic rod, and the rubber brake pad is U-shaped. Both the processing device and the brake locking knob are in control connection with the telescopic rod.

[0013] A method for using a flying vehicle for distance measurement, alarm and maintenance of a transmission line includes the following steps: S1. Hoist the flying vehicle body on the transmission line through the hook-shaped connection assembly. The maintenance personnel sit on the seat assembly and drive the flying vehicle body to move along the transmission line by pulling the transmission line by hand; S2. Before that, maintenance personnel input the installation distances of all spacer dampers for this work on the ground through the storage button of the processing device and read the data through the read button. During the movement of the flying vehicle body, after the maintenance personnel move to a set installation distance of a spacer damper each time, they perform a reset through the reset button and then continue to move to the next target position; S2.1. During the process of the pulley of the flying vehicle body rolling along the transmission line, the outer rubber ring of the distance measuring wheel in contact with the transmission line rolls along, driving the inner hub of the distance measuring wheel to rotate synchronously, and causing the encoder connected to the central axis of the inner hub of the distance measuring wheel to start operating. The encoder transmits the data to the microprocessor, and the microprocessor calculates the moving distance of the maintenance flying vehicle based on the data of the encoder, and compares it with the set installation distance between adjacent spacer dampers to control the lighting of the LED lamp and the vibration frequency of the buzzer; S2.2. When the moving distance of the maintenance flying vehicle obtained by the microprocessor is less than the set installation distance of the spacer damper, the green light in the LED lamp flashes and the buzzer is in the off state; when the moving distance of the maintenance flying vehicle obtained by the microprocessor reaches 4 / 5 of the set installation distance of the spacer damper, the yellow light in the LED lamp flashes, the buzzer is powered on, and the vibration frequency continuously increases. At the same time, the microprocessor controls the telescopic rod to extend, and starts to automatically decelerate through the rubber brake pads; when the moving distance of the maintenance flying vehicle obtained by the microprocessor is equal to the set installation distance of the spacer damper, the red light in the LED lamp flashes, the buzzer enters the constant vibration mode, the rubber brake pads enter the locked state, the microprocessor and the encoder synchronously record the position where the brakes are locked and mark it as the installed point in the digital display. During the installation stage of each spacer damper, using the brake handle will exit the automatic braking mode, and the maintenance personnel manually lock the brakes through the brake lock button. The automatic braking enters the next cycle, and the spacer damper is installed.

[0014] The present invention provides a power transmission line distance-measuring and alarm maintenance flying vehicle and a using method, which have the following beneficial effects.

[0015] 1. The power transmission line distance-measuring and alarm maintenance flying vehicle and its using method of the present invention have many beneficial effects. First of all, by setting up structures such as the flying vehicle body, distance measuring device, processing device, power supply device, and braking device, the problems of low installation accuracy of existing spacer dampers and large safety risks are solved. Compared with the existing measurement ropes with distance marks, there is no need for operators to manually measure while riding on the flying vehicle, avoiding the problem of large errors caused by the influence of gravity and wind force in long span distances, and also reducing the personnel load and safety risks; compared with total station measurement, there is no need to convert data on the ground to determine the position, there is no line-of-sight distance limit, and there is no need to move frequently; compared with unmanned aerial vehicle measurement, position marking can be achieved, and it is not overly affected by insufficient battery life, weather, and airspace control.

[0016] 2. The main body of the flying vehicle is in a "well" shape, with a seat assembly hinged at the bottom, a fixed footrest rod, and a limiting rod, providing a comfortable and safe operation space for maintenance personnel. Rotating pulleys are arranged inside the first protective cover and the second protective cover of the hook-shaped connection assembly. An arc-shaped groove adapted to the top of the wire is provided on the outer peripheral surface of the pulley, enabling the main body of the flying vehicle to be stably hung on the wire. Moreover, the pulley is rotatably connected to the fixed bolt, facilitating installation and disassembly.

[0017] 3. The distance measuring wheel of the distance measuring device and the pulley are in the same vertical plane. The rotation of the distance measuring wheel drives the encoder to operate, transmits the data to the microprocessor for calculating the moving distance, with high accuracy. The structural design of the distance measuring wheel, including the inner hub, the outer rubber ring, and the anti-slip transverse grooves and arc-shaped grooves, increases the friction with the power transmission line and ensures the accuracy of distance measurement.

[0018] 4. The microprocessor of the processing device is controlled to connect to the alarm device. Through the digital display, buzzer, LED lights, and function buttons, it can, according to the comparison between the moving distance of the maintenance flying vehicle and the set installation distance of the spacer dampers, prompt the maintenance personnel with different light flashing and buzzer vibration frequencies. For example, green light flashing indicates that the distance has not been reached, yellow light flashing prompts deceleration and automatically decelerates, and red light flashing indicates reaching the position and automatically braking. It can also mark the installed points, enabling good connection between measurement and installation, and greatly improving the accuracy and efficiency of spacer damper installation.

[0019] 5. The combination of the lithium battery and the photovoltaic panel in the power supply device ensures the power supply of the equipment and improves the endurance. The automatic braking module and manual braking module of the braking device, as well as the design of the electric drive telescopic rod and the rubber brake pads, double guarantee the reliability and safety of braking, ensuring that the maintenance personnel can perform the spacer damper installation operation safely and accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the drawings and embodiments: Figure 1 It is a three-dimensional view of the flying vehicle Figure 1 .

[0021] Figure 2 It is a three-dimensional view of the flying vehicle Figure 2 .

[0022] Figure 3 It is a partial three-dimensional view of the flying vehicle.

[0023] Figure 4 It is a front elevation schematic view of the alarm device connected to the second protective cover.

[0024] Figure 5 It is a schematic view of the power supply device connected to the second protective cover.

[0025] Figure 6 It is a partial view of the protective cover.

[0026] Figure 7 It is a partial view of the brake handle.

[0027] Figure 8 It is a schematic diagram of the braking device.

[0028] Figure 9 It is a working flow chart of the out-of-control vehicle.

[0029] The markings in the figure are: 1. Out-of-control vehicle main body; 2. Seat assembly; 3. Pedal rod; 4. Inner hub of the distance measuring wheel; 5. First connecting shaft; 6. Second connecting shaft; 7. First protective cover; 8. Second protective cover; 9. Fixed bolt; 10. Encoder; 11. Pulley; 12. Outer rubber ring of the distance measuring wheel; 13. Buzzer; 14. LED lamp; 141. Red lamp; 142. Yellow lamp; 143. Green lamp; 15. Function button; 151. Switch button; 152. Storage button; 153. Reading button; 154. Reset button; 16. Digital display; 17. Fixed groove; 18. Lithium battery; 19. Photovoltaic panel; 20. Fixed hole; 21. Brake handle; 22. Brake locking knob; 23. Rubber brake pad; 24. Telescopic rod. Detailed implementation manners

[0030] As Figures 1-9 shown, the present invention provides a power transmission line distance-measuring and alarm maintenance out-of-control vehicle, which includes an out-of-control vehicle main body 1, a distance measuring device fixed on the top of the out-of-control vehicle main body 1, a processing device signal-connected to the distance measuring device, a power supply device and a braking device. A hook-shaped connecting component for hanging on the wire is arranged at the top end of the out-of-control vehicle main body 1. The processing device controls and connects an automatic braking module of the braking device, and a manual braking module is also arranged on the braking device.

[0031] The out-of-control vehicle main body 1 is welded by steel pipes. A hook-shaped connecting component is carried on the top of the out-of-control vehicle main body 1. The out-of-control vehicle main body 1 is directly hoisted on the power transmission line through the hook-shaped connecting component. During the movement of the out-of-control vehicle main body 1 along the power transmission line, the purpose of the braking device is to calculate the distance of the out-of-control vehicle main body 1 moving along the power transmission line according to the distance measuring device. After the moving distance of the out-of-control vehicle main body 1 reaches the installation spacing of the spacer dampers, the automatic braking module in the braking device brakes the out-of-control vehicle main body 1 to ensure the accuracy of the installation position. Before the maintenance personnel install the spacer dampers, the manual braking module is used to stably clamp the power transmission line to ensure the stability of the out-of-control vehicle main body 1 during the installation process of the spacer dampers, so as to improve safety.

[0032] As Figure 1 and Figure 2As shown in the figure, to ensure the structural strength of the flying vehicle body 1. The flying vehicle body 1 is in a "well" shape. A seat assembly 2 is hinged to the bottom of the flying vehicle body 1. A footrest rod 3 is fixedly connected to the bottom of the seat assembly 2. A limiting rod for the rotation of the seat assembly 2 is arranged at the bottom end of the flying vehicle body 1. The end of the "well"-shaped flying vehicle body 1 can be conveniently connected to the seat assembly 2 and the hook-shaped connection assembly. The maintenance personnel sit on the top of the seat assembly 2, making the seat assembly 2 tilt, and the top of the seat assembly 2 is supported by the limiting rod to ensure the stability of the seat assembly 2. At the same time, the bottom of the seat assembly 2 is connected to the footrest rod 3 to provide a footrest position for the maintenance personnel.

[0033] As Figures 1-3 shown in the figure, to ensure that the hook-shaped connection assembly can be stably connected to the transmission line. The hook-shaped connection assembly includes a first protective cover 7 and a second protective cover 8 fixed on both sides of the top of the flying vehicle body 1. Both the first protective cover 7 and the second protective cover 8 are in a U shape. A pulley 11 is rotatably arranged in both the first protective cover 7 and the second protective cover 8. An arc-shaped groove adapted to the top of the wire is arranged on the outer peripheral surface of the pulley 11. The first protective cover 7 and the second protective cover 8 are in a U shape and are fixedly installed upside down at the top of the flying vehicle body 1 and can be hooked on the cable. At this time, the bottom of the pulley 11 cooperates with the cable, and the arc-shaped groove on the pulley 11 can be adapted to the surface of the cable to ensure the stability of the connection.

[0034] As Figure 1 、 Figure 3 and Figure 6 shown in the figure, to achieve a stable connection between the flying vehicle body 1 and the hook-shaped connection assembly. A fixing hole 20 and a fixing groove 17 for the top end of the flying vehicle body 1 to penetrate are respectively arranged at the top and bottom of the first protective cover 7. A threaded hole for threaded connection with a fixing bolt 9 is opened on the inner side wall of the first protective cover 7. The pulley 11 is rotatably connected to the fixing bolt 9. An adaptation hole for the fixing bolt 9 to penetrate is opened on the outer peripheral surface of the top end of the flying vehicle body 1. The structures of the first protective cover 7 and the second protective cover 8 are the same. After passing the vertical rod at the top end of the flying vehicle body 1 through the fixing groove 17 and the fixing hole 20, align the adaptation hole of the vertical rod of the flying vehicle body 1 with the threaded hole of the first protective cover 7, then screw in the fixing bolt 9, synchronously pass through the vertical rod of the flying vehicle body 1 and the pulley 11, and tighten the fixing bolt 9 to achieve the fixed connection of the flying vehicle body 1.

[0035] As Figures 1-3As shown in the figure, it is to achieve the moving distance measurement of the overhaul flying car. The distance measurement device and the processing device are respectively installed on the first protective cover 7 and the second protective cover 8. The distance measurement device includes a second connecting shaft 6 fixed on the first protective cover 7 and a first connecting shaft 5 hinged to the top of the second connecting shaft 6. A distance measurement wheel is rotatably connected to the movable end of the first connecting shaft 5. The distance measurement wheel and the pulley 11 are in the same vertical plane. An encoder 10 is installed on the first connecting shaft 5, and the input shaft of the encoder 10 is connected to the installation shaft of the distance measurement wheel. The input shaft of the encoder 10 rotates following the axis of the distance measurement wheel, and the moving distance of the overhaul flying car can be calculated through the circumference of the distance measurement wheel (the calculation formula is: moving distance = roller circumference × number of rotation turns).

[0036] As Figure 3 shown in the figure, it is to prevent the distance measurement wheel from slipping. The distance measurement wheel includes a distance measurement wheel inner hub 4 and a distance measurement wheel outer rubber ring 12 provided on the outer side surface of the distance measurement wheel inner hub 4. Anti-slip transverse grooves are provided on the outer peripheral surface of the distance measurement wheel outer rubber ring 12, and an arc groove is coaxially opened on the outer peripheral surface of the distance measurement wheel outer rubber ring 12. The distance measurement wheel includes a distance measurement wheel inner hub 4 and a distance measurement wheel outer rubber ring 12 coaxially fixed on the outer peripheral surface of the distance measurement wheel inner hub 4. The provision of the anti-slip transverse grooves can prevent the distance measurement wheel outer rubber ring 12 from slipping when rolling along the cable, and the provision of the arc groove can increase the contact area.

[0037] As Figure 4 shown in the figure. The processing device includes a microprocessor and an alarm device respectively fixed on the first mounting shaft 5 and the second protective cover 8. The microprocessor is controllably connected to the alarm device. The alarm device includes a digital display 16, a buzzer 13, an LED lamp 14 and a function button 15. The LED lamp 14 includes a red light 141 for prompting braking, a yellow light 142 for prompting deceleration, and a green light 143 for prompting passage. The provision of the LED lamp 14 facilitates the maintenance personnel to anticipate in advance the operation that the flying car is about to perform by observing the color change of the LED lamp 14. The green light 143 prompts that the flying car can travel normally at present, the yellow light 142 prompts that the flying car needs to perform a deceleration operation at present, and the red light 141 prompts that the flying car needs to perform a braking operation at present. The buzzer 13 is used to cooperate with the LED lamp 14 to prompt the maintenance personnel. Starting from when the yellow light 142 lights up, the buzzer 13 starts to vibrate and continuously speeds up the vibration frequency. Finally, when the red light 141 lights up, the buzzer 13 enters the constant vibration mode.

[0038] As Figure 5 shown in the figure. The power supply device includes a lithium battery 18 and a photovoltaic panel 19 fixed on the top of the second protective cover 8. The photovoltaic panel 19 and the lithium battery 18 are used to provide power support for the flying car.

[0039] As Figure 1 , Figure 7 , Figure 8 andFigure 9 As shown. The braking device is fixed on the top of the flying vehicle main body 1 and is located in the middle of the hook-shaped connection assembly. The braking assembly includes a telescopic rod 24 fixed on the top of the flying vehicle main body 1, a rubber brake pad 23 connected to the movable end of the telescopic rod 24, and a brake handle 21 fixed in the middle of the flying vehicle main body 1. A brake locking knob 22 is arranged at the fixed end of the brake handle 21. The telescopic rod 24 is an electric drive telescopic rod, and the rubber brake pad 23 is U-shaped. Both the processing device and the brake locking knob 22 are controllably connected to the telescopic rod 24.

[0040] The telescopic rod 24 adopts an electric telescopic rod, and the telescopic rod 24 is controlled by a microprocessor to expand and contract; the telescopic rod 24 can also be controlled to expand and contract by rotating the brake locking button 22. The top of the rubber brake pad 23 is rubber and can be squeezed to accommodate the cable. The bottom of the rubber brake pad 23 is a metal base, and the metal base is fixedly connected to the movable end of the telescopic rod 24. The inner side is made of rubber material. The rubber brake pad 23 is integrally U-shaped. By the upward elongation of the telescopic rod 24, the cable is squeezed and clamped in cooperation with the pulley 11 to brake the distance measuring wheel and achieve the braking effect.

[0041] A method for using a power transmission line distance-measuring and alarm maintenance flying vehicle includes the following steps: S1. Lift the flying vehicle main body 1 on the power transmission line through the hook-shaped connection assembly. The maintenance personnel sit on the seat assembly 2 and drive the flying vehicle main body 1 to move along the power transmission line by pulling the power transmission line by hand; S2. Before that, the maintenance personnel input the installation distance of all spacer dampers for this work through the storage button 152 of the processing device on the ground and read the data through the reading button 153. During the movement of the flying vehicle main body 1, after the maintenance personnel move to a set installation distance of the spacer damper each time, they perform a reset through the reset button 154, and then continue to move to the next target position; S2.1. During the process of the pulley 11 of the flying vehicle main body 1 rolling along the power transmission line, the outer rubber ring 12 of the distance measuring wheel abutted against the power transmission line rolls along with it, and drives the inner hub 4 of the distance measuring wheel to rotate synchronously, and makes the encoder 10 connected to the central axis of the inner hub 4 of the distance measuring wheel start to operate. The encoder 10 transmits the data to the microprocessor. The microprocessor calculates the moving distance of the maintenance flying vehicle according to the data of the encoder 10, and compares it with the set installation distance between the adjacent spacer dampers, and controls the light of the LED lamp 14 and the vibration frequency of the buzzer 13; S2.2. When the moving distance of the inspection flying car obtained by the microprocessor is less than the installation distance of the set spacer, control the green light 143 in the LED lamp 14 to flash, and the buzzer 13 is in the off state; when the moving distance of the inspection flying car obtained by the microprocessor reaches 4 / 5 of the set spacer installation distance, the yellow light 142 in the LED lamp 14 flashes, the buzzer 13 is powered on, and the vibration frequency is continuously increased. At the same time, the microprocessor controls the telescopic rod 24 to extend, and starts to automatically decelerate through the rubber brake pad 23; when the moving distance of the inspection flying car obtained by the microprocessor is equal to the set spacer installation distance, the red light 141 in the LED lamp 14 flashes, the buzzer 13 enters the constant vibration mode, the rubber brake pad 23 enters the locked state, the microprocessor and the encoder 10 synchronously record the braking locked position and mark it as the installed point in the digital display 16. In the installation stage of each spacer, using the brake handle will exit the automatic braking mode, and the maintenance personnel manually lock it through the brake lock button 22, and the automatic braking enters the next cycle and the spacer is installed.

[0042] In addition, during the maintenance construction of the transmission line by the maintenance personnel through the inspection flying car, when the flying car moves to the construction area of the cable line, the maintenance personnel rotate the brake lock button 22 to control the telescopic rod 24 to extend. The telescopic rod 24 pushes the rubber brake pad 23 to move upward. Through the fitting and extrusion of the rubber and the cable line, while realizing the braking of the flying car, the extrusion of the cable line between the rubber brake pad 23 and the pulley 11 can lock the inspection flying car and improve the safety of the maintenance personnel during the construction process.

Claims

1. A transmission line distance-measuring alarm maintenance vehicle, characterized in that: The invention comprises a flying car body (1), a distance measuring device fixed on the top of the flying car body (1), a processing device for signal connection with the distance measuring device, a power supply device and a braking device. The top of the flying car body (1) is provided with a hook-shaped connecting component hung on a wire. The processing device controls an automatic braking module connected to the braking device. The braking device is also provided with a manual braking module.

2. A transmission line distance-measuring alarm maintenance vehicle as claimed in claim 1, characterized in that: The flying car body (1) is in a "well" shape, a seat assembly (2) is hingedly connected to the bottom of the flying car body (1), a pedal rod (3) is fixedly connected to the bottom of the seat assembly (2), and a limit rod for rotating the seat assembly (2) is arranged at the bottom end of the flying car assembly (1).

3. A transmission line distance-measuring alarm maintenance vehicle as claimed in claim 2, characterized in that: The hook-shaped connection assembly comprises a first protective cover (7) and a second protective cover (8) fixed on both sides of the top of the flying car body (1); the first protective cover (7) and the second protective cover (8) are both U-shaped; pulleys (11) are rotatably arranged inside the first protective cover (7) and the second protective cover (8); and the outer peripheral surface of the pulley (11) is provided with an arc groove adapted to the top of the wire.

4. A transmission line distance-measuring alarm maintenance vehicle as claimed in claim 3, characterized in that: The top and bottom of the first protective cover (7) are respectively provided with a fixing hole (20) and a fixing groove (17) for the top of the flying car body (1) to pass through, the inner side wall of the first protective cover (7) is provided with a threaded hole threadedly connected to the fixing bolt (9), the pulley (11) is rotatably connected to the fixing bolt (9), and the outer peripheral surface of the top of the flying car body (1) is provided with an adapter hole for the fixing bolt (9) to pass through, and the first protective cover (7) and the second protective cover (8) have the same structure.

5. A transmission line distance-measuring alarm maintenance vehicle as claimed in claim 3, characterized in that: The distance measuring device and the processing device are respectively mounted on the first protective cover (7) and the second protective cover (8). The distance measuring device comprises a second connecting shaft (6) fixed to the first protective cover (7) and a first connecting shaft (5) hinged to the top end of the second connecting shaft (6). A distance measuring wheel is rotatably connected to the movable end of the first connecting shaft (5). The distance measuring wheel and the pulley (11) are located on the same vertical plane. An encoder (10) is mounted on the first connecting shaft (5). The input shaft of the encoder (10) is connected to the mounting shaft of the distance measuring wheel.

6. A transmission line distance-measuring alarm maintenance vehicle as claimed in claim 5, characterized in that: The distance measuring wheel comprises an inner wheel hub (4) and an outer rubber ring (12) arranged on the outer side of the inner wheel hub (4), the outer circumference of the outer rubber ring (12) being provided with anti-skid transverse grooves, and the outer circumference of the outer rubber ring (12) being provided with an arc groove coaxially.

7. A transmission line distance-measuring alarm maintenance vehicle as claimed in claim 5, characterized in that: The processing device comprises a microprocessor and an alarm device respectively fixed on the first mounting shaft (5) and the second protective cover (8); the microprocessor controls the alarm device; the alarm device comprises a digital display (16), a buzzer (13), an LED light (14) and a function button (15); the LED light (14) comprises a red light (141) for prompting braking, a yellow light (142) for prompting deceleration and a green light (143) for prompting passage.

8. A transmission line distance-measuring alarm maintenance vehicle as claimed in claim 3, characterized in that: The power supply device comprises a lithium battery (18) and a photovoltaic panel (19) fixed on the top of the second protective cover (8).

9. A transmission line distance-measuring alarm maintenance vehicle as claimed in claim 1, characterized in that: The brake device is fixed on the top of the flying car body (1) and is located in the middle of the hook-shaped connecting component. The brake component comprises a telescopic rod (24) fixed on the top of the flying car body (1), a rubber brake pad (23) connected to the movable end of the telescopic rod (24), and a brake handle (21) fixed in the middle of the flying car body (1). The fixed end of the brake handle (21) is provided with a brake locking knob (22). The telescopic rod (24) is an electric drive telescopic rod. The rubber brake pad (23) is U-shaped. The processing device and the brake locking knob (22) both control the connection of the telescopic rod (24).

10. The method for using the transmission line distance-measuring alarm maintenance vehicle as claimed in claim 1, characterized in that: The steps include: S1. The flying car body (1) is hoisted on the power transmission line through the hook-shaped connection assembly. The maintenance personnel sit on the seat assembly (2) and drive the flying car body (1) to move along the power transmission line by pulling the power transmission line by hand; S2. Previously, the maintenance personnel input the installation distances of all the spacer bars of this work through the storage button (152) of the processing device on the ground, and read the data through the reading button (153). During the movement of the flying car body (1), the maintenance personnel reset the flying car body (1) by pressing the reset button (154) after each movement reaches a set spacer bar installation distance, and then continue to move to the next target position; S2.

1. When the pulley (11) of the flying car body (1) rolls along the transmission line, the outer rubber ring (12) of the distance measuring wheel abutting against the transmission line rolls along and drives the inner wheel hub (4) of the distance measuring wheel to rotate synchronously, and causes the encoder (10) connected to the central axis of the inner wheel hub (4) of the distance measuring wheel to start running. The encoder (10) transmits data to the microprocessor. The microprocessor calculates the distance moved by the maintenance flying car based on the data of the encoder (10), and compares it with the set installation distance between the spacer bars, and controls the light of the LED lamp (14) and the vibration frequency of the buzzer (13); S2.2, when the moving distance of the maintenance vehicle obtained by the microprocessor is less than the set installation distance of the spacer bar, the green light (143) in the LED light (14) is controlled to flash, and the buzzer (13) is in a closed state; when the moving distance of the maintenance vehicle obtained by the microprocessor reaches 4 / 5 of the set installation distance of the spacer bar, the yellow light (142) in the LED light (14) flashes, the buzzer (13) is powered on, and the vibration frequency is continuously increased, and at the same time, the microprocessor controls the telescopic rod (24) to extend, and starts to automatically decelerate through the rubber brake pad (23); when the microprocessor When the obtained maintenance vehicle moving distance is equal to the set spacer installation distance, the red light (141) in the LED lamp (14) flashes, the buzzer (13) enters the constant vibration mode, the rubber brake pad (23) enters the braking state, the microprocessor and the encoder (10) synchronously record the braking position and mark it as the installed point in the digital display (16). At each stage of spacer installation, the automatic braking mode is exited by using the brake handle, and the maintenance personnel manually brake the vehicle through the brake lock button, and the automatic brake enters the next cycle and the spacer installation is carried out.

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