Overhead transmission line maintenance device and grabbing, sweeping, snow melting and shielding unit thereof

Abstract

The invention discloses an overhead transmission line maintenance device and grabbing, sweeping, snow melting and shielding units thereof, and relates to the technical field of transmission line maintenance equipment. The overhead transmission line maintenance device comprises a mobile vehicle, a lifting arm, a working platform, a grabbing unit, a sweeping unit, a snow melting unit and a shielding unit, according to the device, glaze on a power transmission line can be cleaned, the power transmission cable on a power transmission tower is fixedly grabbed through the grabbing unit, and the problem that the cable is difficult to overhaul due to continuous swinging in strong wind weather is solved; when the power transmission cable is grabbed and fixed, ice and snow attached to the surface of the power transmission cable can be automatically cleaned, so that the damage possibly brought by freezing rain to power transmission safety is eliminated, and the problem that other maintenance items are difficult to carry out due to ice and snow attachment can be solved; through the design of the shielding unit, the maintenance part of the power transmission cable can be shielded and protected, and convenient operation during maintenance is ensured.

Description

Technical Field

[0001] The invention discloses an overhead power transmission line maintenance device and a grabbing, sweeping, snow melting and shielding unit thereof, and relates to the technical field of power transmission line maintenance equipment. Background Art

[0002] Electric pole towers are used to support transmission lines in overhead transmission lines. They are usually made of steel or reinforced concrete. They are the main supporting structures of overhead transmission lines. Their function is to support the conductors and ground wires of overhead transmission lines and to ensure that the distance between them and the ground meets the requirements of electrical insulation safety and power frequency electromagnetic field restrictions under various possible atmospheric conditions. In order to ensure the normal operation of overhead transmission lines, it is often necessary to inspect and repair overhead transmission lines. For this reason, many transmission line inspection and repair devices have been born.

[0003] For example, in order to solve the problem that manual cleaning of plant branches and other debris around overhead power transmission lines is labor-intensive, inefficient, and dangerous, the invention patent "A kind of operation device and operation vehicle for power transmission line maintenance" with application number 201610534643.3 provides a solution, which includes a fixed seat, a lifting hydraulic cylinder vertically mounted on the fixed seat, a horizontal rotating device mounted on the movable end of the lifting hydraulic cylinder, a horizontal hydraulic cylinder mounted on the horizontal rotating device, a fixed frame mounted under the cylinder body of the horizontal hydraulic cylinder, a horizontal hook mounted on the movable end of the horizontal hydraulic cylinder, and a hydraulic scissors mounted on the fixed frame; the horizontal hook can hook the cable and then retract it to enter the blade of the hydraulic scissors to cut the cable. The device can realize vertical lifting movement, horizontal rotation and telescopic movement, and realize the three-dimensional adjustment requirements of height, length and angle, so as to effectively hook branches and other debris in different positions, reduce labor intensity, improve work efficiency, and ensure work safety.

[0004] However, it is not just the growing branches that pose a threat to power transmission operations. The freezing rain caused by the cold wave will bring more serious harm to power transmission. After the rain adheres to the transmission line, it will condense into ice under the influence of cold air, which is called rime. Rime will make the power poles bear several times the weight of the original transmission line, causing the power poles to be overwhelmed and broken. In serious cases, several kilometers or even dozens of kilometers of power poles will fall in rows, causing power transmission and communication interruptions, bringing immeasurable and serious harm to industrial and agricultural production.

[0005] It can be seen that it is very important to remove rime on transmission lines. However, taking the invention patent with application number 201610534643.3 as an example, many transmission line maintenance devices do not have the above function. Summary of the invention

[0006] In order to solve the above problems, the present invention designs an overhead power transmission line maintenance device and provides a specific structure of each component unit so as to be able to clean rime on the power transmission line.

[0007] The object of the present invention is achieved in that:

[0008] Overhead power transmission line maintenance equipment, including a mobile vehicle, a lifting arm, a work platform, a grabbing unit, a sweeping unit, a snow melting unit and a shielding unit;

[0009] The mobile vehicle is connected to the working platform through a lifting arm, and the lifting arm is used to move the working platform to a high altitude for working; the grabbing units are at least two, which are arranged at the front end of the working platform and are used to fix the transmission cables; the sweeping units are arranged at both sides of the grabbing units and can be moved to clean the ice and snow on the surface of the transmission cables; the sweeping units are connected to a snow melting unit and a shielding unit, the snow melting unit is used to melt the ice and snow on the surface of the transmission cables, and the shielding unit is used to shield and protect the transmission cables.

[0010] The above-mentioned overhead power transmission line maintenance device, the grabbing unit includes a movable arm unit and a hook clamp unit, the hook clamp unit is fixedly arranged at the front end of the movable arm unit, the movable arm unit includes a fixed plate frame, an electric cylinder A, an electric cylinder B, a first connecting block and a second connecting block, the fixed plate frame is fixedly arranged at the front end of the working platform, a connecting arm is rotatably connected at one end of the fixed plate frame, one end of the electric cylinder A is rotatably connected at the side wall of the connecting arm, and the other end of the electric cylinder A is rotatably connected to the side wall of the working platform;

[0011] An electric cylinder B is fixedly provided at one end of the connecting arm, a first connecting block is fixedly provided at one end of the electric cylinder B, a second connecting block is rotatably connected to the first connecting block, a servo motor is fixedly installed at the side wall of the first connecting block, and the output shaft end of the servo motor is fixedly connected to the side wall rotating shaft of the second connecting block;

[0012] The hook and clamp unit comprises a rectangular arm, a hook, a movable slider and a clamping plate, wherein the rectangular arm is fixedly arranged at the front end of the second connecting block, a hook is fixedly arranged at one end of the rectangular arm, an inner cavity is arranged inside the rectangular arm, a movable slider is slidably connected in the inner cavity of the rectangular arm, a clamping plate is slidably connected at the upper surface of the rectangular arm, and the movable slider and the clamping plate are fixedly connected;

[0013] A driving servo motor is fixedly installed in the inner cavity of the rectangular arm, and one end of a threaded rod is fixedly connected to the end of the output shaft of the driving servo motor. The other end of the threaded rod is rotatably connected to the side wall of the inner cavity of the rectangular arm, and the threaded rod passes through the moving slider and is threadedly engaged with the moving slider.

[0014] The above-mentioned overhead power transmission line maintenance device, the cleaning unit includes a guide rod, a movable seat, a lateral bracket, a movable frame, a fixed clamp and a movable clamp, the cleaning unit is arranged at the side wall of the hook clamp unit, the cleaning unit is provided with two, the two cleaning units are respectively arranged at the side walls of the hook clamp unit, the two guide rods are respectively fixedly arranged at the side walls of the rectangular arm, the two guide rods are slidably provided with a movable seat, the side wall of the movable seat is rotatably connected with one end of the lateral bracket, the other end of the lateral bracket is rotatably connected with the movable frame, the movable frame is arranged at the side wall of the rectangular arm and slidably cooperates with the rectangular arm, and the movable frame is fixedly connected to the movable slider;

[0015] One end of the L-shaped bracket is fixedly connected to the side wall of the movable seat, and a fixed clamping jaw is fixedly arranged at the other end of the L-shaped bracket. The fixed clamping jaw is connected and slidably matched with the movable clamping jaw, and a connecting spring is fixedly arranged between the movable clamping jaw and the fixed clamping jaw. The fixed clamping jaw and the movable clamping jaw are both provided with arc-shaped grooves, and arc-shaped rubber sheets are fixedly arranged on the arc-shaped grooves of the fixed clamping jaw and the movable clamping jaw. There are a plurality of arc-shaped rubber sheets, and the plurality of arc-shaped rubber sheets are fixedly arranged on the arc-shaped grooves of the fixed clamping jaw and the movable clamping jaw at equal distances.

[0016] The above-mentioned overhead power transmission line maintenance device, the snow melting unit includes a fixed cylinder, a push rod, a movable bracket, a nozzle, an output hose, a liquid storage tank and an input hose, the snow melting unit is arranged at the bottom surface of the hook clamp unit, the fixed cylinder is fixedly arranged at the bottom surface of the rectangular arm, a piston is slidably connected in the inner cavity of the fixed cylinder, one end of the push rod is fixedly connected to one side of the piston, the other end of the push rod passes through the inner cavity side wall of the fixed cylinder and extends outside the wall, one end of the push rod is fixedly connected to the movable bracket, the movable bracket is arranged at the bottom surface of the rectangular arm and slidably cooperates with the rectangular arm, and the movable bracket is fixedly connected to the movable slider;

[0017] One end of the inner cavity of the fixed cylinder is fixedly connected to one end of an output hose, and the other end of the output hose is fixedly connected to a nozzle, the nozzle is arranged inside the dynamic clamp, and one end of the nozzle extends to the position of the arc-shaped rubber sheet, one end of the inner cavity of the fixed cylinder is fixedly connected to one end of an input hose, and the other end of the input hose is connected to the inner cavity of a liquid storage tank, and the liquid storage tank is fixedly arranged on the working platform, an output check valve is installed on the output hose, and an input check valve is installed on the input hose.

[0018] The above-mentioned overhead power transmission line maintenance device, the shielding unit includes a cylinder, a winding roller, a shielding cloth, a spring spring and a connecting bracket, the cylinder is provided with two, the two cylinders are fixedly connected with a connecting bracket, the bottom ends of the two connecting brackets are respectively fixedly connected to the upper surface of the two moving clamps, a winding roller is rotatably connected in the inner cavity of the cylinder, a spring spring is fixedly arranged between the winding roller and the cylinder, one end of the shielding cloth is wound and connected on one of the winding rollers, and the other end of the shielding cloth extends to the other winding roller and is fixedly connected to the winding rollers.

[0019] The grabbing unit of the overhead power transmission line maintenance device comprises a movable arm unit and a hook clamp unit, wherein the hook clamp unit is fixedly arranged at the front end of the movable arm unit, and the movable arm unit comprises a fixed plate frame, an electric cylinder A, an electric cylinder B, a first connecting block and a second connecting block, wherein the fixed plate frame is fixedly arranged at the front end of the working platform, a connecting arm is rotatably connected at one end of the fixed plate frame, one end of the electric cylinder A is rotatably connected at the side wall of the connecting arm, and the other end of the electric cylinder A is rotatably connected to the side wall of the working platform;

[0020] An electric cylinder B is fixedly provided at one end of the connecting arm, a first connecting block is fixedly provided at one end of the electric cylinder B, a second connecting block is rotatably connected to the first connecting block, a servo motor is fixedly installed at the side wall of the first connecting block, and the output shaft end of the servo motor is fixedly connected to the side wall rotating shaft of the second connecting block;

[0021] The hook and clamp unit comprises a rectangular arm, a hook, a movable slider and a clamping plate, wherein the rectangular arm is fixedly arranged at the front end of the second connecting block, a hook is fixedly arranged at one end of the rectangular arm, an inner cavity is arranged inside the rectangular arm, a movable slider is slidably connected in the inner cavity of the rectangular arm, a clamping plate is slidably connected at the upper surface of the rectangular arm, and the movable slider and the clamping plate are fixedly connected;

[0022] A driving servo motor is fixedly installed in the inner cavity of the rectangular arm, and one end of a threaded rod is fixedly connected to the end of the output shaft of the driving servo motor. The other end of the threaded rod is rotatably connected to the side wall of the inner cavity of the rectangular arm, and the threaded rod passes through the moving slider and is threadedly engaged with the moving slider.

[0023] The cleaning unit of the overhead power transmission line maintenance device comprises a guide rod, a movable seat, a lateral bracket, a movable frame, a fixed clamp and a movable clamp, wherein the cleaning unit is arranged at the side wall of the hook clamp unit, and two cleaning units are provided, and the two cleaning units are respectively arranged at the side walls of the hook clamp unit, and the two guide rods are respectively fixedly arranged at the side walls of the rectangular arm, and the two guide rods are slidably provided with a movable seat, and the side wall of the movable seat is rotatably connected with one end of the lateral bracket, and the other end of the lateral bracket is rotatably connected with the movable frame, and the movable frame is arranged at the side wall of the rectangular arm and slidably cooperates with the rectangular arm, and the movable frame is fixedly connected to the movable slider;

[0024] One end of the L-shaped bracket is fixedly connected to the side wall of the movable seat, and a fixed clamping jaw is fixedly arranged at the other end of the L-shaped bracket. The fixed clamping jaw is connected and slidably matched with the movable clamping jaw, and a connecting spring is fixedly arranged between the movable clamping jaw and the fixed clamping jaw. The fixed clamping jaw and the movable clamping jaw are both provided with arc-shaped grooves, and arc-shaped rubber sheets are fixedly arranged on the arc-shaped grooves of the fixed clamping jaw and the movable clamping jaw. There are a plurality of arc-shaped rubber sheets, and the plurality of arc-shaped rubber sheets are fixedly arranged on the arc-shaped grooves of the fixed clamping jaw and the movable clamping jaw at equal distances.

[0025] A snow melting unit of an overhead power transmission line maintenance device comprises a fixed cylinder, a push rod, a movable bracket, a nozzle, an output hose, a liquid storage tank and an input hose, wherein the snow melting unit is arranged at the bottom surface of the hook clamp unit, the fixed cylinder is fixedly arranged at the bottom surface of a rectangular arm, a piston is slidably connected in the inner cavity of the fixed cylinder, one end of the push rod is fixedly connected to one side of the piston, the other end of the push rod passes through the inner cavity side wall of the fixed cylinder and extends outside the wall, one end of the push rod is fixedly connected to the movable bracket, the movable bracket is arranged at the bottom surface of the rectangular arm and slidably cooperates with the rectangular arm, and the movable bracket is fixedly connected to the movable slider;

[0026] One end of the inner cavity of the fixed cylinder is fixedly connected to one end of an output hose, and the other end of the output hose is fixedly connected to a nozzle, the nozzle is arranged inside the dynamic clamp, and one end of the nozzle extends to the position of the arc-shaped rubber sheet, one end of the inner cavity of the fixed cylinder is fixedly connected to one end of an input hose, and the other end of the input hose is connected to the inner cavity of a liquid storage tank, and the liquid storage tank is fixedly arranged on the working platform, an output check valve is installed on the output hose, and an input check valve is installed on the input hose.

[0027] The shielding unit of an overhead power transmission line maintenance device comprises a cylinder, a winding roller, a shielding cloth, a clockwork spring and a connecting bracket, wherein two cylinders are provided, and the two cylinders are fixedly connected to a connecting bracket, and the bottom ends of the two connecting brackets are respectively fixedly connected to the upper surfaces of two moving clamps, and a winding roller is rotatably connected in the inner cavity of the cylinder, and a clockwork spring is fixedly arranged between the winding roller and the cylinder, and one end of the shielding cloth is wound and connected on one of the winding rollers, and the other end of the shielding cloth extends to the other winding roller and is fixedly connected to the winding rollers.

[0028] The beneficial effects of the present invention are as follows: it is capable of clearing rime on the transmission line, and fixing the transmission cable on the transmission tower by the grasping unit, thereby solving the problem of difficulty in maintenance due to the continuous swinging of the cable in windy weather; while grasping and fixing the transmission cable, it is capable of automatically clearing ice and snow attached to the surface of the transmission cable, thereby removing the harm that freezing rain may bring to power transmission safety, and solving the problem that other maintenance projects are difficult to carry out due to the attachment of ice and snow; through the design of the shielding unit, the maintenance part of the transmission cable can be shielded and protected, ensuring convenient operation during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the overhead power transmission line maintenance device of the present invention;

[0030] Figure 2 It is the connection diagram of the grabbing unit;

[0031] Figure 3 It is a schematic diagram of the overall structure of the grabbing unit;

[0032] Figure 4 It is a structural schematic diagram of the mobile arm unit;

[0033] Figure 5 It is a cross-sectional schematic diagram of the hook and clamp unit;

[0034] Figure 6 It is the overall structural schematic diagram of the cleaning unit;

[0035] Figure 7 It is a schematic diagram of the cross-sectional structure of the movable clamp;

[0036] Figure 8 It is the overall structural diagram of the snow melting unit;

[0037] Fig. 9 is a schematic diagram of the overall structure of the shielding unit;

[0038] Fig.10 Schematic diagram of the cross-sectional structure of a cylinder.

[0039] In the figure: 1, mobile vehicle; 2, lifting arm; 3, working platform; 4, grabbing unit; 5, sweeping unit; 6, snow melting unit; 7, shielding unit; 8, mobile arm unit; 9, hook unit; 10, fixed plate frame; 11, connecting arm; 12, electric cylinder A; 13, electric cylinder B; 14, first connecting block; 15, second connecting block; 16, servo motor; 17, rectangular arm; 18, hook; 19, mobile slider; 20, clamping plate; 21, threaded rod; 22, drive Servo motor; 23. Guide rod; 24. Moving seat; 25. Lateral bracket; 26. Moving frame; 27. L-shaped bracket; 28. Fixed jaw; 29. ​​Moving jaw; 30. Arc-shaped rubber sheet; 31. Connecting spring; 32. Fixed cylinder; 33. Piston; 34. Push rod; 35. Moving bracket; 36. Output hose; 37. Nozzle; 38. Liquid storage tank; 39. Input hose; 40. Cylinder; 41. Winding roller; 42. Shielding cloth; 43. Spring spring; 44. Connecting bracket. DETAILED DESCRIPTION

[0040] The specific implementation modes of the present invention will be further described in detail below with reference to the accompanying drawings.

[0041] Method 1

[0042] The following is a specific implementation of the overhead power transmission line maintenance device of the present invention.

[0043] The overhead power transmission line maintenance device under this specific implementation mode is as follows: Figure 1 As shown, it includes: a mobile vehicle 1, a lifting arm 2, a working platform 3, a grabbing unit 4, a sweeping unit 5, a snow melting unit 6 and a shielding unit 7;

[0044] The mobile vehicle 1 is connected to the working platform 3 through the lifting arm 2, and the lifting arm 2 is used to move the working platform 3 to a high altitude for operation; the grabbing units 4 are at least two, arranged at the front end of the working platform 3, and are used to fix the transmission cables; the cleaning units 5 are arranged at both sides of the grabbing units 4, and can be moved to clean the ice and snow on the surface of the transmission cables; the cleaning units 5 are connected to the snow melting units 6 and the shielding units 7, the snow melting units 6 are used to melt the ice and snow on the surface of the transmission cables, and the shielding units 7 are used to shield and protect the transmission cables.

[0045] As a further technical solution, Figure 2 and Figure 3 and Figure 4As shown, the grabbing unit 4 includes a moving arm unit 8 and a hook clamp unit 9, the hook clamp unit 9 is fixedly arranged at the front end of the moving arm unit 8, the moving arm unit 8 includes a fixed plate frame 10, an electric cylinder A12, an electric cylinder B13, a first connecting block 14 and a second connecting block 15, the fixed plate frame 10 is fixedly arranged at the front end of the working platform 3, one end of the fixed plate frame 10 is rotatably connected to a connecting arm 11, one end of the electric cylinder A12 is rotatably connected to the side wall of the connecting arm 11, and the other end of the electric cylinder A12 is rotatably connected to the side wall of the working platform 3, and the connecting arm 11 can be driven to rotate and flip by the extension and retraction of the electric cylinder A12, so that the angle of the moving arm unit 8 can be adjusted;

[0046] An electric cylinder B13 is fixedly provided at one end of the connecting arm 11, and a first connecting block 14 is fixedly provided at one end of the electric cylinder B13. A second connecting block 15 is rotatably connected to the first connecting block 14, and a servo motor 16 is fixedly installed at the side wall of the first connecting block 14. The output shaft end of the servo motor 16 is fixedly connected to the side wall rotating shaft of the second connecting block 15, so that the second connecting block 15 can be driven to rotate by the operation of the servo motor 16, so that the angle of the hook and clamp unit 9 can be adjusted, and the hook and clamp unit 9 can be driven to move by the extension and retraction of the electric cylinder B13, so that it is convenient to hook the power transmission cables at different positions, and thus facilitate the subsequent hooking and fixing operations.

[0047] As a specific technical solution, Figure 5As shown, the hook and clamp unit 9 includes a rectangular arm 17, a hook 18, a movable slider 19 and a clamping plate 20. The rectangular arm 17 is fixedly arranged at the front end of the second connecting block 15. The hook 18 is fixedly arranged at one end of the rectangular arm 17. An inner cavity is arranged inside the rectangular arm 17. The movable slider 19 is slidably connected in the inner cavity of the rectangular arm 17. The clamping plate 20 is slidably connected at the upper surface of the rectangular arm 17. The movable slider 19 and the clamping plate 20 are fixedly connected. A driving servo motor 22 is fixedly installed in the inner cavity of the rectangular arm 17. One end of a threaded rod 21 is fixedly connected to the end of the output shaft of the driving servo motor 22. The other end of the threaded rod 21 is rotatably connected to the side wall of the inner cavity of the rectangular arm 17. The threaded rod 21 passes through the movable slider 19 and is threadedly matched with the movable slider 19. , the rectangular arm 17 can be driven to move by the operation of the movable arm unit 8, so that the hook 18 at the front end of the rectangular arm 17 can hook the cable that needs to be fixed, and then the threaded rod 21 is driven to rotate by the operation of the servo motor 22, so that the movable slider 19 is driven to move by the rotation of the threaded rod 21, so that the clamping plate 20 can be driven to move by the movement of the movable slider 19, and then the clamping plate 20 is moved to the hook 18 by the movement of the clamping plate 20, and the cable is hooked and fixed with the hook 18, so that the cable can be effectively kept fixed, so that the transmission cable that needs to be fixed can be hooked and fixed, and then the cable can be fixed, which is particularly suitable for the maintenance of the transmission tower cable under severe weather conditions, avoiding the problem of swaying vibration caused by strong wind blowing the cable and making it difficult to repair;

[0048] As a preferred technical solution, Figure 6 and Figure 7 As shown, the sweeping unit 5 includes a guide rod 23, a movable seat 24, a lateral bracket 25, a movable frame 26, a fixed clamping claw 28 and a movable clamping claw 29. The sweeping unit 5 is arranged at the side wall of the hook and clamp unit 9. There are two sweeping units 5, and the two sweeping units 5 are respectively arranged at the side walls of the hook and clamp unit 9. The two guide rods 23 are respectively fixedly arranged at the side walls of the rectangular arm 17. The two guide rods 23 are slidably provided with a movable seat 24. One end of the lateral bracket 25 is rotatably connected to the side wall of the movable seat 24. The other end of the lateral bracket 25 is rotatably connected to the movable frame 26. The movable frame 26 is arranged at the side wall of the rectangular arm 17 and slidably cooperates with the rectangular arm 17. The movable frame 26 is fixedly connected to the movable slider 19.

[0049] One end of an L-shaped bracket 27 is fixedly connected to the side wall of the movable seat 24, and a fixed clamping claw 28 is fixedly arranged at the other end of the L-shaped bracket 27. The fixed clamping claw 28 is connected and slidably matched with a movable clamping claw 29, and a connecting spring 31 is fixedly arranged between the movable clamping claw 29 and the fixed clamping claw 28. The fixed clamping claw 28 and the movable clamping claw 29 are both provided with arc-shaped grooves, and arc-shaped rubber sheets 30 are fixedly arranged at the arc-shaped grooves of the fixed clamping claw 28 and the movable clamping claw 29. There are several arc-shaped rubber sheets 30, and several arc-shaped rubber sheets 30 are fixedly arranged at the arc-shaped grooves of the fixed clamping claw 28 and the movable clamping claw 29 at equal distances. When the hooking and clamping unit 9 hooks and clamps the cable to be repaired, since the cleaning unit 5 is arranged on both sides of the hooking and clamping unit 9, when the cable is hooked, it will make the cable contact the fixed clamping claw 28 and the movable clamping claw The front end position of the claw 29, when the cable is hooked, the cable squeezes the movable clamping claw 29, causing the movable clamping claw 29 to move upward, so that the cable enters the hole between the two arc-shaped rubber sheets 30, and then during the movement of the movable slider 19, it will also drive the movable frame 26 to move, so that when the movable frame 26 moves, it drives the lateral bracket 25 to perform angular movement, thereby driving the two movable seats 24 to move to both sides along the guide rod 23, thereby driving the fixed clamping claw 28 and the movable clamping claw 29 to move, so that the arc-shaped rubber sheet 30 moves on the surface of the cable, and then the ice and snow on the surface of the cable can be swept away, thereby playing a role in cleaning and sweeping away ice and snow, so as to facilitate subsequent maintenance of the cable. Through the above-mentioned technical scheme, the ice and snow on the surface of the cable can be automatically swept away while the cable hook is fixed.

[0050] As a further technical solution, Figure 8 As shown, the sweeping unit 5 is connected to the snow melting unit 6, and the snow melting unit 6 includes a fixed cylinder 32, a push rod 34, a movable bracket 35, a nozzle 37, an output hose 36, a liquid storage tank 38 and an input hose 39. The snow melting unit 6 is arranged at the bottom surface of the hook clamp unit 9, and the fixed cylinder 32 is fixedly arranged at the bottom surface of the rectangular arm 17. A piston 33 is slidably connected in the inner cavity of the fixed cylinder 32, and one end of the push rod 34 is fixedly connected to one side of the piston 33. The other end of the push rod 34 passes through the inner cavity side wall of the fixed cylinder 32 and extends outside the wall. A movable bracket 35 is fixedly connected to one end of the push rod 34. The movable bracket 35 is arranged at the bottom surface of the rectangular arm 17 and slidably cooperates with the rectangular arm 17. The movable bracket 35 is fixedly connected to the movable slider 19.

[0051] One end of the inner cavity of the fixed cylinder 32 is fixedly connected to one end of an output hose 36, and the other end of the output hose 36 is fixedly connected to a nozzle 37, which is arranged inside the dynamic clamp 29, and one end of the nozzle 37 extends to the position of the arc-shaped rubber sheet 30. One end of the inner cavity of the fixed cylinder 32 is fixedly connected to one end of an input hose 39, and the other end of the input hose 39 is connected to the inner cavity of a liquid storage tank 38, and the liquid storage tank 38 is fixedly arranged on the working platform 3. An output check valve is installed on the output hose 36, and the input An input check valve is installed on the hose 39. The check valve can make the output hose 36 output in one direction only, and the input hose 39 input in one direction only. The inner cavities of the fixing cylinder 32 and the liquid storage tank 38 are filled with snow melting agent. When the hook clamp unit 9 hooks and clamps the cable to be fixed, it will drive the cleaning unit 5 to work and clean the ice and snow on the surface of the cable. At the same time, the movement of the moving slider 19 can drive the moving bracket 35 to move, and the movement of the moving bracket 35 can drive the push rod 34 to move, so that The movement of the push rod 34 pushes the piston 33 to move, so that the piston 33 can move so that the snow melting agent in the inner cavity of the fixed cylinder 32 can be output through the output hose 36, output to the nozzle 37, and then sprayed out, so that the arc-shaped rubber sheet 30 can automatically spray the snow melting agent on the cable surface during the movement of the cable surface, so that the ice and snow on the cable surface can be fully cleaned, thereby solving the problem that too much ice and snow on the cable surface is difficult to clean thoroughly. When the cable is repaired and the cable needs to be loosened, the servo motor 22 can be driven to drive the threaded rod 21 The movable slider 19 is rotated in the opposite direction, thereby driving the clamping plate 20 away from the cable to realize the loosening operation. When the movable slider 19 moves to the left, the movable bracket 35 can be driven to move to the left, thereby driving the push rod 34 to move to the left, thereby driving the piston 33 to move to the left in the inner cavity of the fixed cylinder 32, so that the input hose 39 can absorb the snow-melting agent in the inner cavity of the liquid storage tank 38 into the inner cavity of the fixed cylinder 32, waiting for the next use. Through the above-mentioned technical solution, the snow-melting agent can be automatically sprayed while clearing ice and snow, achieving a better cleaning effect.

[0052] As a specific technical solution, Fig. 9 and Fig.10As shown, the shielding unit 7 includes a cylinder 40, a winding roller 41, a shielding cloth 42, a spring spring 43 and a connecting bracket 44, wherein two cylinders 40 are provided, and the two cylinders 40 are fixedly connected with a connecting bracket 44, and the bottom ends of the two connecting brackets 44 are respectively fixedly connected to the upper surfaces of the two moving clamps 29, and a winding roller 41 is rotatably connected in the inner cavity of the cylinder 40, and a spring spring 43 is fixedly provided between the winding roller 41 and the cylinder 40, and one end of the shielding cloth 42 is wound and connected on one of the winding rollers 41, and the other end of the shielding cloth 42 extends to the other winding roller 41 and is fixedly connected to the winding roller 41. Then, when the cleaning unit 5 is working to clean the surface of the cable, the movable clamp 29 will move to both sides, so that the movement of the movable clamp 29 drives the connecting bracket 44 to move, thereby driving the two cylinders 40 to unfold to both sides, so that the shielding cloth 42 is unfolded. The cables that need to be inspected can be shielded and protected by unfolding the shielding cloth 42, thereby effectively avoiding the problem of maintenance difficulties caused by the continuous falling of ice and snow on the cables during the maintenance process, thereby effectively coping with the maintenance work in windy and snowy weather. When the cleaning unit is retracted and recovered, the shielding unit 7 is automatically folded, which is convenient and fast to use, and is particularly suitable for maintenance in strong wind, snow and rainy weather.

[0053] Method 2

[0054] The following is a specific implementation of the grabbing unit of the overhead power line maintenance device of the present invention.

[0055] It should be noted that the grabbing unit of the overhead power transmission line maintenance device in this specific implementation manner can be implemented independently, and can also be used as a key unit of the overhead power transmission line maintenance device described in the first specific implementation manner.

[0056] The grabbing unit of the overhead transmission line maintenance device in this specific implementation manner is as follows: Figure 2 and Figure 3 and Figure 4 As shown, it includes a movable arm unit 8 and a hook clamp unit 9, the hook clamp unit 9 is fixedly arranged at the front end of the movable arm unit 8, the movable arm unit 8 includes a fixed plate frame 10, an electric cylinder A12, an electric cylinder B13, a first connecting block 14 and a second connecting block 15, the fixed plate frame 10 is fixedly arranged at the front end of the working platform 3, one end of the fixed plate frame 10 is rotatably connected to a connecting arm 11, the side wall of the connecting arm 11 is rotatably connected to one end of the electric cylinder A12, the other end of the electric cylinder A12 is rotatably connected to the side wall of the working platform 3, and the connecting arm 11 can be driven to rotate and flip by the extension and retraction of the electric cylinder A12, so that the angle of the movable arm unit 8 can be adjusted;

[0057] An electric cylinder B13 is fixedly provided at one end of the connecting arm 11, and a first connecting block 14 is fixedly provided at one end of the electric cylinder B13. A second connecting block 15 is rotatably connected to the first connecting block 14, and a servo motor 16 is fixedly installed at the side wall of the first connecting block 14. The output shaft end of the servo motor 16 is fixedly connected to the side wall rotating shaft of the second connecting block 15, so that the second connecting block 15 can be driven to rotate by the operation of the servo motor 16, so that the angle of the hook and clamp unit 9 can be adjusted, and the hook and clamp unit 9 can be driven to move by the extension and retraction of the electric cylinder B13, so that it is convenient to hook the power transmission cables at different positions, and thus facilitate the subsequent hooking and fixing operations.

[0058] The hook and clamp unit 9 includes a rectangular arm 17, a hook 18, a movable slider 19 and a clamping plate 20. The rectangular arm 17 is fixedly arranged at the front end of the second connecting block 15. The hook 18 is fixedly arranged at one end of the rectangular arm 17. An inner cavity is arranged inside the rectangular arm 17. The movable slider 19 is slidably connected in the inner cavity of the rectangular arm 17. The clamping plate 20 is slidably connected at the upper surface of the rectangular arm 17. The movable slider 19 and the clamping plate 20 are fixedly connected. A driving servo motor 22 is fixedly installed in the inner cavity of the rectangular arm 17. One end of a threaded rod 21 is fixedly connected to the end of the output shaft of the driving servo motor 22. The other end of the threaded rod 21 is rotatably connected to the side wall of the inner cavity of the rectangular arm 17. The threaded rod 21 passes through the movable slider 19 and is threadedly matched with the movable slider 19. The rectangular arm 17 can be driven to move by the operation of the movable arm unit 8, so that the hook 18 at the front end of the rectangular arm 17 can hook the cable that needs to be fixed, and then the threaded rod 21 is driven to rotate by the operation of the servo motor 22, so that the movable slider 19 is driven to move by the rotation of the threaded rod 21, so that the clamping plate 20 can be driven to move by the movement of the movable slider 19, and then the clamping plate 20 is moved to the hook 18 by the movement of the clamping plate 20, and the cable is hooked and fixed with the hook 18, so that the cable can be effectively kept fixed, so that the transmission cable that needs to be fixed can be hooked and fixed, and then the cable can be fixed, which is particularly suitable for the maintenance of the transmission tower cable under severe weather conditions, avoiding the problem of swaying vibration caused by strong wind blowing the cable and making it difficult to repair;

[0059] Method 3

[0060] The following is a specific implementation of the cleaning unit of the overhead power line maintenance device of the present invention.

[0061] It should be noted that the cleaning unit of the overhead power transmission line maintenance device in this specific implementation manner can be implemented independently, and can also be used as a key unit of the overhead power transmission line maintenance device described in the first specific implementation manner.

[0062] The cleaning unit of the overhead transmission line maintenance device under this specific implementation mode is as follows: Figure 6 and Figure 7 As shown, it includes a guide rod 23, a movable seat 24, a lateral bracket 25, a movable frame 26, a fixed clamping claw 28 and a movable clamping claw 29, the cleaning unit 5 is arranged at the side wall of the hook clamp unit 9, and there are two cleaning units 5, the two cleaning units 5 are respectively arranged at the side walls of the hook clamp unit 9, the two guide rods 23 are respectively fixedly arranged at the side walls of the rectangular arm 17, and the two guide rods 23 are slidably provided with a movable seat 24, the side wall of the movable seat 24 is rotatably connected with one end of the lateral bracket 25, and the other end of the lateral bracket 25 is rotatably connected with a movable frame 26, the movable frame 26 is arranged at the side wall of the rectangular arm 17 and slidably cooperates with the rectangular arm 17, and the movable frame 26 is fixedly connected to the movable slider 19;

[0063] One end of an L-shaped bracket 27 is fixedly connected to the side wall of the movable seat 24, and a fixed clamping claw 28 is fixedly arranged at the other end of the L-shaped bracket 27. The fixed clamping claw 28 is connected and slidably matched with a movable clamping claw 29, and a connecting spring 31 is fixedly arranged between the movable clamping claw 29 and the fixed clamping claw 28. The fixed clamping claw 28 and the movable clamping claw 29 are both provided with arc-shaped grooves, and arc-shaped rubber sheets 30 are fixedly arranged at the arc-shaped grooves of the fixed clamping claw 28 and the movable clamping claw 29. There are several arc-shaped rubber sheets 30, and several arc-shaped rubber sheets 30 are fixedly arranged at the arc-shaped grooves of the fixed clamping claw 28 and the movable clamping claw 29 at equal distances. When the hooking and clamping unit 9 hooks and clamps the cable to be repaired, since the cleaning unit 5 is arranged on both sides of the hooking and clamping unit 9, when the cable is hooked, it will make the cable contact the fixed clamping claw 28 and the movable clamping claw The front end position of the claw 29, when the cable is hooked, the cable squeezes the movable clamping claw 29, causing the movable clamping claw 29 to move upward, so that the cable enters the hole between the two arc-shaped rubber sheets 30, and then during the movement of the movable slider 19, it will also drive the movable frame 26 to move, so that when the movable frame 26 moves, it drives the lateral bracket 25 to perform angular movement, thereby driving the two movable seats 24 to move to both sides along the guide rod 23, thereby driving the fixed clamping claw 28 and the movable clamping claw 29 to move, so that the arc-shaped rubber sheet 30 moves on the surface of the cable, and then the ice and snow on the surface of the cable can be swept away, thereby playing a role in cleaning and sweeping away ice and snow, so as to facilitate subsequent maintenance of the cable. Through the above-mentioned technical scheme, the ice and snow on the surface of the cable can be automatically swept away while the cable hook is fixed.

[0064] Method 4

[0065] The following is a specific implementation of the snow melting unit of the overhead power line maintenance device of the present invention.

[0066] It should be noted that the snow melting unit of the overhead power transmission line maintenance device under this specific implementation mode can be implemented independently, and can also be used as a key unit of the overhead power transmission line maintenance device described in the first specific implementation mode.

[0067] The snow melting unit of the overhead transmission line maintenance device in this specific implementation manner is as follows: Figure 8 As shown, it includes a fixed cylinder 32, a push rod 34, a movable bracket 35, a nozzle 37, an output hose 36, a liquid storage tank 38 and an input hose 39. The snow melting unit 6 is arranged at the bottom surface of the hook clamp unit 9. The fixed cylinder 32 is fixedly arranged at the bottom surface of the rectangular arm 17. A piston 33 is slidably connected in the inner cavity of the fixed cylinder 32. One end of the push rod 34 is fixedly connected to one side of the piston 33. The other end of the push rod 34 passes through the inner cavity side wall of the fixed cylinder 32 and extends outside the wall. A movable bracket 35 is fixedly connected to one end of the push rod 34. The movable bracket 35 is arranged at the bottom surface of the rectangular arm 17 and slidably cooperates with the rectangular arm 17. The movable bracket 35 is fixedly connected to the movable slider 19.

[0068] One end of the inner cavity of the fixed cylinder 32 is fixedly connected to one end of an output hose 36, and the other end of the output hose 36 is fixedly connected to a nozzle 37, which is arranged inside the dynamic clamp 29, and one end of the nozzle 37 extends to the position of the arc-shaped rubber sheet 30. One end of the inner cavity of the fixed cylinder 32 is fixedly connected to one end of an input hose 39, and the other end of the input hose 39 is connected to the inner cavity of a liquid storage tank 38, and the liquid storage tank 38 is fixedly arranged on the working platform 3. An output check valve is installed on the output hose 36, and the input An input check valve is installed on the hose 39. The check valve can make the output hose 36 output in one direction only, and the input hose 39 input in one direction only. The inner cavities of the fixing cylinder 32 and the liquid storage tank 38 are filled with snow melting agent. When the hook clamp unit 9 hooks and clamps the cable to be fixed, it will drive the cleaning unit 5 to work and clean the ice and snow on the surface of the cable. At the same time, the movement of the moving slider 19 can drive the moving bracket 35 to move, and the movement of the moving bracket 35 can drive the push rod 34 to move, so that The movement of the push rod 34 pushes the piston 33 to move, so that the piston 33 can move so that the snow melting agent in the inner cavity of the fixed cylinder 32 can be output through the output hose 36, output to the nozzle 37, and then sprayed out, so that the arc-shaped rubber sheet 30 can automatically spray the snow melting agent on the cable surface during the movement of the cable surface, so that the ice and snow on the cable surface can be fully cleaned, thereby solving the problem that too much ice and snow on the cable surface is difficult to clean thoroughly. When the cable is repaired and the cable needs to be loosened, the servo motor 22 can be driven to drive the threaded rod 21 The movable slider 19 is rotated in the opposite direction, thereby driving the clamping plate 20 away from the cable to realize the loosening operation. When the movable slider 19 moves to the left, the movable bracket 35 can be driven to move to the left, thereby driving the push rod 34 to move to the left, thereby driving the piston 33 to move to the left in the inner cavity of the fixed cylinder 32, so that the input hose 39 can absorb the snow-melting agent in the inner cavity of the liquid storage tank 38 into the inner cavity of the fixed cylinder 32, waiting for the next use. Through the above-mentioned technical solution, the snow-melting agent can be automatically sprayed while clearing ice and snow, achieving a better cleaning effect.

[0069] Method 5

[0070] The following is a specific implementation of the shielding unit of the overhead power line maintenance device of the present invention.

[0071] It should be noted that the shielding unit of the overhead power transmission line maintenance device in this specific implementation manner can be implemented independently, and can also be used as a key unit of the overhead power transmission line maintenance device described in the first specific implementation manner.

[0072] The shielding unit of the overhead power transmission line maintenance device in this specific embodiment is as follows: Fig. 9 and Fig.10 As shown, it includes a cylinder 40, a winding roller 41, a shielding cloth 42, a spring spring 43 and a connecting bracket 44, wherein two cylinders 40 are provided, and the two cylinders 40 are fixedly connected with a connecting bracket 44, and the bottom ends of the two connecting brackets 44 are respectively fixedly connected to the upper surfaces of the two moving clamps 29, and a winding roller 41 is rotatably connected in the inner cavity of the cylinder 40, and a spring spring 43 is fixedly arranged between the winding roller 41 and the cylinder 40, and one end of the shielding cloth 42 is wound and connected on one of the winding rollers 41, and the other end of the shielding cloth 42 extends to the other winding roller 41 and is fixedly connected to the winding roller 41. When the cleaning unit 5 is working to clean the surface of the cable, the movable clamp 29 will move to both sides, so that the movement of the movable clamp 29 drives the connecting bracket 44 to move, thereby driving the two cylinders 40 to unfold to both sides, so that the shielding cloth 42 is unfolded. The cables that need to be inspected can be shielded and protected by unfolding the shielding cloth 42, thereby effectively avoiding the problem of maintenance difficulties caused by the continuous falling of ice and snow on the cables during the maintenance process, thereby effectively coping with the maintenance work in windy and snowy weather. When the cleaning unit is retracted and recovered, the shielding unit 7 is automatically folded, which is convenient and fast to use, and is particularly suitable for maintenance in strong winds, snow and rain.

[0073] It should be noted that the above are only preferred specific embodiments of the present invention and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. Overhead power transmission line maintenance device, characterized in that: It comprises a mobile vehicle (1), a lifting arm (2), a working platform (3), a grabbing unit (4), a sweeping unit (5), a snow melting unit (6) and a shielding unit (7); The mobile vehicle (1) is connected to the working platform (3) via a lifting arm (2), and the lifting arm (2) is used to move the working platform (3) to a high altitude for working; at least two grabbing units (4) are arranged at the front end of the working platform (3) and are used to fix the power transmission cable; the cleaning unit (5) is arranged at both sides of the grabbing unit (4) and can be moved to clean the ice and snow on the surface of the power transmission cable; the cleaning unit (5) is connected to a snow melting unit (6) and a shielding unit (7), the snow melting unit (6) is used to melt the ice and snow on the surface of the power transmission cable, and the shielding unit (7) is used to shield and protect the power transmission cable.

2. The overhead power transmission line maintenance device according to claim 1, characterized in that: The grabbing unit (4) comprises a movable arm unit (8) and a hook clamp unit (9), the hook clamp unit (9) being fixedly arranged at the front end of the movable arm unit (8), the movable arm unit (8) comprising a fixed plate frame (10), an electric cylinder A (12), an electric cylinder B (13), a first connecting block (14) and a second connecting block (15), the fixed plate frame (10) being fixedly arranged at the front end of the working platform (3), a connecting arm (11) being rotatably connected at one end of the fixed plate frame (10), one end of the electric cylinder A (12) being rotatably connected at the side wall of the connecting arm (11), and the other end of the electric cylinder A (12) being rotatably connected to the side wall of the working platform (3); An electric cylinder B (13) is fixedly arranged at one end of the connecting arm (11), a first connecting block (14) is fixedly arranged at one end of the electric cylinder B (13), a second connecting block (15) is rotatably connected to the first connecting block (14), a servo motor (16) is fixedly installed at the side wall of the first connecting block (14), and the output shaft end of the servo motor (16) is fixedly connected to the side wall rotating shaft of the second connecting block (15); The hook and clamp unit (9) comprises a rectangular arm (17), a hook (18), a movable slider (19) and a clamping plate (20); the rectangular arm (17) is fixedly arranged at the front end of the second connecting block (15); a hook (18) is fixedly arranged at one end of the rectangular arm (17); an inner cavity is arranged inside the rectangular arm (17); the movable slider (19) is slidably connected in the inner cavity of the rectangular arm (17); the clamping plate (20) is slidably connected at the upper surface of the rectangular arm (17); the movable slider (19) and the clamping plate (20) are fixedly connected; A driving servo motor (22) is fixedly installed in the inner cavity of the rectangular arm (17); one end of a threaded rod (21) is fixedly connected to the end of the output shaft of the driving servo motor (22); the other end of the threaded rod (21) is rotatably connected to the inner cavity side wall of the rectangular arm (17); the threaded rod (21) passes through the movable slider (19) and is threadably matched with the movable slider (19).

3. The overhead power transmission line maintenance device according to claim 1, characterized in that: The cleaning unit (5) comprises a guide rod (23), a movable seat (24), a lateral bracket (25), a movable frame (26), a fixed clamping claw (28) and a movable clamping claw (29). The cleaning unit (5) is arranged at the side wall of the hook and clamp unit (9). Two cleaning units (5) are arranged, and the two cleaning units (5) are arranged at the side walls of the hook and clamp unit (9) respectively. The two guide rods (23) are fixedly arranged at the side walls of the rectangular arm (17) respectively. The two guide rods (23) are slidably arranged with a movable seat (24). One end of the lateral bracket (25) is rotatably connected to the side wall of the movable seat (24). The other end of the lateral bracket (25) is rotatably connected to the movable frame (26). The movable frame (26) is arranged at the side wall of the rectangular arm (17) and is slidably matched with the rectangular arm (17). The movable frame (26) is fixedly connected to the movable slider (19). One end of an L-shaped bracket (27) is fixedly connected to the side wall of the movable seat (24), and a fixed clamping jaw (28) is fixedly arranged at the other end of the L-shaped bracket (27). The fixed clamping jaw (28) is connected and slidably matched with a movable clamping jaw (29), and a connecting spring (31) is fixedly arranged between the movable clamping jaw (29) and the fixed clamping jaw (28). Both the fixed clamping jaw (28) and the movable clamping jaw (29) are provided with arc-shaped grooves, and arc-shaped rubber sheets (30) are fixedly arranged at the arc-shaped grooves of the fixed clamping jaw (28) and the movable clamping jaw (29). There are a plurality of arc-shaped rubber sheets (30), and the plurality of arc-shaped rubber sheets (30) are fixedly arranged at the arc-shaped grooves of the fixed clamping jaw (28) and the movable clamping jaw (29) at equal distances.

4. The overhead power transmission line maintenance device according to claim 1, characterized in that: The snow melting unit (6) comprises a fixed cylinder (32), a push rod (34), a movable bracket (35), a nozzle (37), an output hose (36), a liquid storage tank (38) and an input hose (39). The snow melting unit (6) is arranged at the bottom surface of the hook clamp unit (9). The fixed cylinder (32) is fixedly arranged at the bottom surface of the rectangular arm (17). A piston (33) is slidably connected in the inner cavity of the fixed cylinder (32). One end of the push rod (34) is fixedly connected at one side of the piston (33). The other end of the push rod (34) passes through the inner cavity side wall of the fixed cylinder (32) and extends outside the wall. The movable bracket (35) is fixedly connected at one end of the push rod (34). The movable bracket (35) is arranged at the bottom surface of the rectangular arm (17) and slidably cooperates with the rectangular arm (17). The movable bracket (35) is fixedly connected to the movable slider (19). One end of the inner cavity of the fixed cylinder (32) is fixedly connected to one end of an output hose (36), and the other end of the output hose (36) is fixedly connected to a nozzle (37). The nozzle (37) is arranged inside the movable clamp (29), and one end of the nozzle (37) extends to the position of the arc-shaped rubber sheet (30). One end of the inner cavity of the fixed cylinder (32) is fixedly connected to one end of an input hose (39), and the other end of the input hose (39) is connected to the inner cavity of a liquid storage tank (38). The liquid storage tank (38) is fixedly arranged on the working platform (3). An output check valve is installed on the output hose (36), and an input check valve is installed on the input hose (39).

5. The overhead power transmission line maintenance device according to claim 1, characterized in that: The shielding unit (7) comprises a cylinder (40), a winding roller (41), a shielding cloth (42), a spring spring (43) and a connecting bracket (44), wherein two cylinders (40) are provided, and the two cylinders (40) are fixedly connected to the connecting bracket (44), and the bottom ends of the two connecting brackets (44) are respectively fixedly connected to the upper surfaces of the two movable clamping claws (29), and a winding roller (41) is rotatably connected in the inner cavity of the cylinder (40), and a spring spring (43) is fixedly arranged between the winding roller (41) and the cylinder (40), and one end of the shielding cloth (42) is wound and connected to one of the winding rollers (41), and the other end of the shielding cloth (42) extends to the other winding roller (41) and is fixedly connected to the winding roller (41).

6. A grabbing unit of an overhead power transmission line maintenance device, characterized in that: The invention comprises a movable arm unit (8) and a hook clamp unit (9), wherein the hook clamp unit (9) is fixedly arranged at the front end of the movable arm unit (8), and the movable arm unit (8) comprises a fixed plate frame (10), an electric cylinder A (12), an electric cylinder B (13), a first connecting block (14) and a second connecting block (15), wherein the fixed plate frame (10) is fixedly arranged at the front end of the working platform (3), a connecting arm (11) is rotatably connected to one end of the fixed plate frame (10), one end of the electric cylinder A (12) is rotatably connected to the side wall of the connecting arm (11), and the other end of the electric cylinder A (12) is rotatably connected to the side wall of the working platform (3); An electric cylinder B (13) is fixedly arranged at one end of the connecting arm (11), a first connecting block (14) is fixedly arranged at one end of the electric cylinder B (13), a second connecting block (15) is rotatably connected to the first connecting block (14), a servo motor (16) is fixedly installed at the side wall of the first connecting block (14), and the output shaft end of the servo motor (16) is fixedly connected to the side wall rotating shaft of the second connecting block (15); The hook and clamp unit (9) comprises a rectangular arm (17), a hook (18), a movable slider (19) and a clamping plate (20); the rectangular arm (17) is fixedly arranged at the front end of the second connecting block (15); a hook (18) is fixedly arranged at one end of the rectangular arm (17); an inner cavity is arranged inside the rectangular arm (17); the movable slider (19) is slidably connected in the inner cavity of the rectangular arm (17); the clamping plate (20) is slidably connected at the upper surface of the rectangular arm (17); the movable slider (19) and the clamping plate (20) are fixedly connected; A driving servo motor (22) is fixedly installed in the inner cavity of the rectangular arm (17); one end of a threaded rod (21) is fixedly connected to the end of the output shaft of the driving servo motor (22); the other end of the threaded rod (21) is rotatably connected to the inner cavity side wall of the rectangular arm (17); the threaded rod (21) passes through the movable slider (19) and is threadably matched with the movable slider (19).

7. A cleaning unit of an overhead power transmission line maintenance device, characterized in that: The invention comprises a guide rod (23), a movable seat (24), a lateral bracket (25), a movable frame (26), a fixed clamping claw (28) and a movable clamping claw (29); the cleaning unit (5) is arranged at the side wall of the hook clamping unit (9); two cleaning units (5) are arranged, and the two cleaning units (5) are arranged at the side walls of the hook clamping unit (9) respectively; the two guide rods (23) are respectively fixedly arranged at the side walls of the rectangular arm (17); the two guide rods (23) are slidably arranged with a movable seat (24); one end of the lateral bracket (25) is rotatably connected to the side wall of the movable seat (24); the other end of the lateral bracket (25) is rotatably connected to the movable frame (26); the movable frame (26) is arranged at the side wall of the rectangular arm (17) and is slidably matched with the rectangular arm (17); the movable frame (26) is fixedly connected to the movable slider (19); One end of an L-shaped bracket (27) is fixedly connected to the side wall of the movable seat (24), and a fixed clamping jaw (28) is fixedly arranged at the other end of the L-shaped bracket (27). The fixed clamping jaw (28) is connected and slidably matched with a movable clamping jaw (29), and a connecting spring (31) is fixedly arranged between the movable clamping jaw (29) and the fixed clamping jaw (28). Both the fixed clamping jaw (28) and the movable clamping jaw (29) are provided with arc-shaped grooves, and arc-shaped rubber sheets (30) are fixedly arranged at the arc-shaped grooves of the fixed clamping jaw (28) and the movable clamping jaw (29). There are a plurality of arc-shaped rubber sheets (30), and the plurality of arc-shaped rubber sheets (30) are fixedly arranged at the arc-shaped grooves of the fixed clamping jaw (28) and the movable clamping jaw (29) at equal distances.

8. A snow melting unit for an overhead power transmission line maintenance device, characterized in that: It comprises a fixed cylinder (32), a push rod (34), a movable bracket (35), a nozzle (37), an output hose (36), a liquid storage tank (38) and an input hose (39); the snow melting unit (6) is arranged at the bottom surface of the hook clamp unit (9); the fixed cylinder (32) is fixedly arranged at the bottom surface of the rectangular arm (17); a piston (33) is slidably connected in the inner cavity of the fixed cylinder (32); one end of the push rod (34) is fixedly connected at one side of the piston (33); the other end of the push rod (34) passes through the inner cavity side wall of the fixed cylinder (32) and extends outside the wall; one end of the push rod (34) is fixedly connected to the movable bracket (35); the movable bracket (35) is arranged at the bottom surface of the rectangular arm (17) and slidably cooperates with the rectangular arm (17); the movable bracket (35) is fixedly connected to the movable slider (19); One end of the inner cavity of the fixed cylinder (32) is fixedly connected to one end of an output hose (36), and the other end of the output hose (36) is fixedly connected to a nozzle (37). The nozzle (37) is arranged inside the movable clamp (29), and one end of the nozzle (37) extends to the position of the arc-shaped rubber sheet (30). One end of the inner cavity of the fixed cylinder (32) is fixedly connected to one end of an input hose (39), and the other end of the input hose (39) is connected to the inner cavity of a liquid storage tank (38). The liquid storage tank (38) is fixedly arranged on the working platform (3). An output check valve is installed on the output hose (36), and an input check valve is installed on the input hose (39).

9. A shielding unit for an overhead power transmission line maintenance device, characterized in that: The invention comprises a cylinder (40), a winding roller (41), a shielding cloth (42), a spring spring (43) and a connecting bracket (44), wherein two cylinders (40) are provided, and the two cylinders (40) are fixedly connected with a connecting bracket (44), and the bottom ends of the two connecting brackets (44) are respectively fixedly connected with the upper surfaces of two movable clamping claws (29), and a winding roller (41) is rotatably connected in the inner cavity of the cylinder (40), and a spring spring (43) is fixedly arranged between the winding roller (41) and the cylinder (40), and one end of the shielding cloth (42) is wound and connected on one of the winding rollers (41), and the other end of the shielding cloth (42) extends to the other winding roller (41) and is fixedly connected to the winding roller (41).

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