Wire ladder head for power transmission line maintenance

Abstract

The invention discloses a wire ladder head for power transmission line maintenance, and relates to the technical field of power transmission line maintenance. A wire ladder head for power transmission line maintenance comprises a pull rod assembly used for being driven by an unmanned aerial vehicle; the hooking device is connected with the pull rod assembly and is used for hooking and fixing the wire; the ladder head main body is connected to one side, far away from the pull rod assembly, of the hooking device; the pulley assembly is mounted on the ladder head main body and is used for mounting a rope in a sliding manner. The problems of friction between a wire and a rope, high labor intensity of operators and potential safety hazards are solved.

Description

Technical Field

[0001] The invention relates to the technical field of power transmission line maintenance, and in particular to a conductor ladder head for power transmission line maintenance. Background Art

[0002] In modern power transmission systems, transmission lines are the backbone network for energy transmission, and their stable operation is crucial. Traditional transmission line maintenance work requires operators to climb directly to the towers and conductors for maintenance and inspection. This process not only places extremely high demands on the physical strength and skills of the operators, but also comes with significant safety risks, including but not limited to the risk of falling from high-altitude operations, difficulties in operating under severe weather conditions, and electrical safety issues when contacting or approaching high-voltage conductors. High labor intensity, limited operating efficiency, and high difficulty in rescue in the event of an accident are all significant disadvantages of traditional maintenance methods.

[0003] With the advancement of technology, the application of drones and electric lifting devices has provided new solutions for the maintenance of power transmission lines, reducing the need for personnel to be directly exposed to high-risk environments. The introduction of drone technology has made it possible to arrange auxiliary ropes across the conductors. The drone carries a lightweight guide rope across the line and fixes it, and then drags the heavier working rope to establish a safe working platform. However, in this process, the direct contact between the guide rope and the high-voltage conductor causes the rope to wear more, affecting its structural integrity and service life. At the same time, the dragging process of the large rope still requires a lot of manpower, the labor intensity has not been fundamentally alleviated, and there are safety hazards caused by the poor stability of the conductor ladder head and the conductor hook.

[0004] In view of the above problems, there is an urgent need to provide a device that is efficient, low-friction and can significantly reduce the burden on operators, so as to optimize the application of drones in transmission line maintenance. Summary of the invention

[0005] The technical problem to be solved by the present invention is that traditional power transmission line maintenance has the problems of large friction between conductors and ropes, high labor intensity for operators and potential safety hazards. The purpose is to provide a conductor ladder head for power transmission line maintenance, which solves the problems of friction between conductors and ropes, high labor intensity for operators and potential safety hazards.

[0006] The present invention is achieved through the following technical solutions:

[0007] A conductor ladder head for power transmission line maintenance, comprising

[0008] A pull rod assembly, used to be driven by the drone;

[0009] A hooking device, connected to the pull rod assembly and used for hooking and fixing with the wire;

[0010] The ladder head body is connected to the side of the hook device away from the pull rod assembly;

[0011] The pulley assembly is installed on the ladder head body and is used for sliding the installation rope.

[0012] As a possible design, the above-mentioned pull rod assembly includes a clamping plate, a pull rod and a connecting rod.

[0013] The card plate is in a V-shape with an opening downward, and is used to connect to the drone;

[0014] There are two pulling rods, which are symmetrically arranged. One end of the pulling rod is fixed to one side of the opening of the clamping plate, and the other end is connected to the hook device.

[0015] Both ends of the connecting rod are respectively connected with two pulling rods.

[0016] As a possible design, the hooking device includes a hooking frame, a wire groove, an opening and closing guide assembly and a guide member.

[0017] There are two hook frames, one end of which is connected to the pull rod assembly and the other end is fixed to the ladder head body for hooking the conductor;

[0018] The wire groove is arranged on the hook frame and is used for accommodating the wire;

[0019] The opening and closing guide assembly is rotatably mounted on the hook frame and is transmission-connected to the pull rod assembly, and is used to open the wire groove when the wire needs to be hooked, and is used to close the wire groove when the wire is hooked;

[0020] The guide piece is installed on one side of the wire groove and is used for guiding the wire when hooking. The guide piece and the opening and closing guide assembly are symmetrically arranged on both sides of the wire groove.

[0021] As a possible design, a guide block is installed in the wire groove, and the guide block and the guide member form an inclined line for guiding the wire when hooking.

[0022] As a possible design, the opening and closing guide assembly includes a first driving rod, a positioning hole, a first rack, a first driving gear, a second rack, a rotating member, a guide plate and a positioning member.

[0023] One end of the first driving rod is fixedly connected to the pull rod assembly, and the other end is fixedly connected to the first rack, for driving the first rack to rise and fall;

[0024] The positioning hole is formed on the hook frame and is used to accommodate the first driving rod to pass through so as to fix the moving route of the first driving rod;

[0025] The first rack is movably disposed in the hook frame and meshes with the first driving gear;

[0026] The first driving gear is rotatably mounted in the hook frame, and two sides of the first driving gear are respectively meshed with the first rack and the second rack, so as to drive the second rack to rise and fall;

[0027] The second rack is movably arranged in the hook frame, and both ends of the second rack pass through the hook frame. One end of the second rack close to the first driving rod is rotatably connected to the rotating member, and is used to drive the rotating member to rise and fall.

[0028] The rotating member is fixedly connected to the guide plate and is used to drive the guide plate to rotate;

[0029] The guide plate is located at one side of the wire groove and is arranged opposite to the guide member, and is used to open or close the wire groove;

[0030] The two ends of the positioning member are rotatably connected to the rotating member and the hook frame respectively, and are used to drive the rotating member to rotate when the second rack is raised or lowered.

[0031] As a possible design, a buffer spring is sleeved on one end of the positioning hole close to the first rack to stabilize the pulling-opening speed of the first rack.

[0032] As a possible design, the above also includes a wire fixing assembly, which includes a sleeve rod, a third rack, a second driving gear, a fourth rack, a stabilizing gear, a clamping gear and a clamping member.

[0033] The sleeve rod is fixed on the top of the hook frame, and the pull rod assembly is slidably installed in the sleeve rod;

[0034] The third rack is fixed to the bottom of the pull rod assembly and meshes with the second driving gear, and is movably arranged in the hook frame;

[0035] The second driving gear is rotatably installed in the hook frame and meshes with the third rack and the fourth rack on both sides respectively;

[0036] The fourth rack has two sides of an upper end that are respectively meshed with the second driving gear and the stabilizing gear, and a lower end that is respectively meshed with two clamping gears, and is used to drive the clamping gears to rotate, and is movably arranged in the hook frame;

[0037] The stabilizing gear is rotatably mounted in the hook frame and is used to stabilize the lifting and lowering of the fourth rack;

[0038] There are two clamping gears, and the two clamping gears are symmetrically arranged on both sides of the fourth rack, and the clamping gears are fixedly connected to the clamping member;

[0039] The clamping piece is located in the wire groove and is used for clamping the wire as the clamping gear rotates.

[0040] As a possible design, the ladder head body includes a vertical rod and a horizontal rod.

[0041] There are two vertical rods, which are symmetrically arranged and both are connected to the hook device;

[0042] There are multiple cross bars, and both ends of the cross bars are respectively connected to two vertical bars for installing pulley assemblies.

[0043] As a possible design, the pulley assembly includes a first pulley and a second pulley.

[0044] The first pulley and the second pulley have the same structure and are used for installing ropes, and the first pulley is installed in the middle of the ladder head body;

[0045] The second pulley is installed at the bottom of the ladder head body.

[0046] As a possible design, the first pulley includes a mounting portion and a rotating wheel.

[0047] The mounting part is fixed to the middle of the ladder head body and is used for rotating the mounting rotating wheel;

[0048] The edge of the rotating wheel is recessed inwards for installing a rope.

[0049] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0050] The present invention utilizes a drone to connect the pull rod assembly, thereby driving the hook device and the ladder head body to move to the conductor, and the hook device is hooked and fixed to the conductor. At this time, the working rope suspended on the pulley assembly can slide to adjust the position and suspension length according to actual conditions, separate the working rope from the high-voltage conductor, effectively reduce the direct friction between the rope and the conductor, avoid rope damage, and ensure its structural integrity and service life; at the same time, since the pulley assembly can rotate with the drag of the rope, the force applied by the operator is reduced, the physical consumption of the operator in the process of rope arrangement is greatly reduced, and the safety and efficiency of the operation process are ensured; in addition, under the drive of the drone, the conductor will follow the opening of the hook device to enter the fixed hook position, and after hooking, the drone releases force, the hook device will form a closed state to prevent the conductor from falling out, thereby improving the stability of the conductor ladder head and the conductor hooking, and ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0052] Figure 1 It is a front view of a conductor ladder head for power transmission line maintenance of the present invention;

[0053] Figure 2 A side view of a conductor ladder head for power transmission line maintenance according to the present invention;

[0054] Figure 3 It is a partial cross-sectional structural schematic diagram of a conductor ladder head for power transmission line maintenance of the present invention;

[0055] Figure 4 It is a partial enlarged view of part A of a conductor ladder head for power transmission line maintenance of the present invention;

[0056] Figure 5 It is a partial enlarged view of part B of a conductor ladder head for power transmission line maintenance according to the present invention.

[0057] Marks and corresponding parts names in the attached drawings:

[0058] 1-pull rod assembly; 11-clip plate; 12-pull rod; 13-connecting rod;

[0059] 2-hook device; 21-hook frame; 22-wire groove; 23-opening and closing guide assembly; 231-first driving rod; 232-positioning hole; 233-first rack; 234-first driving gear; 235-second rack; 236-rotating member; 237-guide plate; 238-positioning member; 239-buffer spring; 24-guide member; 25-guide block; 26-wire fixing assembly; 261-sleeve rod; 262-third rack; 263-second driving gear; 264-fourth rack; 265-stabilizing gear; 266-clamping gear; 267-clamping member; 27-hook mouth;

[0060] 3-ladder main body; 31-vertical rod; 32-cross rod;

[0061] 4- pulley assembly; 41- first pulley; 411- mounting portion; 412- rotating wheel; 42- second pulley. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with examples and drawings. The illustrative embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention. If specific conditions are not specified in the examples, they are carried out according to conventional conditions or conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0063] When the existing conductor ladder head is in use, there is contact between the rope and the conductor, which will cause rope wear during dragging, affecting its structural integrity and service life, and will also cause a large labor burden on the workers. In addition, the hooking stability of the conductor ladder head and the conductor is poor, resulting in a major safety hazard.

[0064] The present invention provides a wire ladder head for power transmission line maintenance, referring to Figure 1-3 , including a pull rod assembly 1, a hook device 2, a ladder head body 3 and a pulley assembly 4. The pull rod assembly 1 is used to be driven by a drone. Specifically, when in use, the pull rod assembly 1 can be hooked by the drone, thereby driving it to rise into the air, and further driving the hook device 2, the ladder head body 3 and the pulley assembly 4 to rise into the air; the hook device 2 is connected to the pull rod assembly 1. After the pull rod assembly 1 is driven, the hook device 2 is positioned relative to the wire. At this time, since the pull rod assembly 1 applies an upward pulling force, it will drive the hook device 2 to open the hooking mouth. At this time, the wire can enter the hook device 2 along the hooking mouth, and then the drone is separated from the pull rod assembly 1, the upward pulling force disappears, the hook device 2 is closed, and the wire is fixed in the hook device 2, which can ensure the hooking stability of the wire; the ladder head body 3 is connected to the side of the hook device 2 away from the pull rod assembly 1, and the pulley assembly 4 is rotatably installed on it; the pulley assembly 4 is rotatably installed on the ladder head body 3, and is used for slidingly installing the rope. When the rope needs to be dragged, the friction between the rope and the pulley assembly 4 can be reduced to ensure the integrity of the rope, and such a design can separate the rope from the wire to improve safety.

[0065] In some embodiments of the present invention, reference Figure 1 The above-mentioned pull rod assembly 1 includes a clamping plate 11, a pull rod 12 and a connecting rod 13. The clamping plate 11 is in a V-shape with an opening facing downward, and the V-shape can be any angle between 90-170°, and can be 100°, 120°, 150° or any other value. The drone can be hooked with the V-shaped angle of the clamping plate 11, thereby driving it to move; there are two pull rods 12, and the two pull rods 12 are symmetrically arranged and respectively fixed on both sides of the clamping plate 11. Specifically, the pull rod 12 is fixed at the V-shaped angle of the clamping plate 11, which can improve the connection stability of the hook assembly. One end of the pull rod 12 is fixed to one side of the opening of the clamping plate 11, and the other end is connected to the hook device 2, applying an upward pulling force to the hook device 2; the two ends of the connecting rod 13 are respectively connected to the two pull rods 12 to improve the connection stability between the pull rod 12 and the clamping plate 11.

[0066] In some embodiments of the present invention, reference Figure 2-3The hooking device 2 includes a hooking frame 21, a wire groove 22, an opening and closing guide assembly 23 and a guide member 24. There are two hooking frames 21, and the two hooking frames 21 are respectively connected to the two pulling rods 12 of the pulling rod assembly 1. The other end of the hooking frame 21 is fixed to the ladder head body 3. A hooking opening 27 is provided on the side close to one end of the ladder head body 3, and the hooking opening is opened and closed by the opening and closing guide assembly 23, which is used to open the hooking opening 27 under the drive of the pulling rod 12 to facilitate the entry of the wire, thereby hooking the wire; the wire groove 22 is provided on the hooking frame 21 to accommodate the wire; the opening and closing guide assembly 23 is rotatably installed on the hooking frame 21, and is transmission-connected to the pulling rod 12 of the pulling rod assembly 1. When the drone drives the pulling rod 12 to pull up, the opening and closing guide assembly 23 is opened. The guide assembly 23 is pulled to open the hook opening 27, so that the wire can enter the wire groove 22 along the hook opening 27, and then the drone descends, so that the pulling rod 12 is no longer subjected to the upward pulling force, so that the opening and closing guide assembly 23 is closed and closed with the hook opening 27, thereby closing the wire groove 22; the guide member 24 is installed on one side of the wire groove 22, specifically on the side of the hook opening 27, and it is symmetrically arranged with the opening and closing guide assembly 23, and the guide member 24 is arranged on the side close to the ladder head body 3, and there is an obtuse angle with the hook opening 27, so that the guide member 24 is arranged downwardly, ensuring that the wire can slide into the guide groove 22 along the guide member 24.

[0067] In some embodiments of the present invention, reference Figure 2-3 A guide block 25 is installed in the wire groove 22. The guide block 25 and the guide member 24 form an inclined line for guiding the wire when hooking.

[0068] In some embodiments of the present invention, reference Figure 3-4The above-mentioned opening and closing guide assembly 23 includes a first driving rod 231, a positioning hole 232, a first rack 233, a first driving gear 234, a second rack 235, a rotating member 236, a guide plate 237 and a positioning member 238. One end of the first driving rod 231 is fixedly connected to the pull rod assembly 1, and the other end is fixedly connected to the first rack 233, which is used to drive the first rack 233 to move up and down. Preferably, it is L-shaped, and its short end is connected to the pull rod 12 of the pull rod assembly 1, and the long end is fixedly connected to the first rack 233, so that the first rack 233 can be pulled up and down under the drive of the pull rod 12; the positioning hole 232 is provided on the hook frame 21, which is used to accommodate the long end of the first driving rod 231 to pass through, so as to fix the moving route of the first driving rod 231; the first rack 233 is movably arranged in the hook frame 21, and specifically, a hole is provided in the hook frame 21 to accommodate The first rack 233 is provided with a space for lifting and lowering. The lower end of the first rack passes through the hook frame 21 and meshes with the first driving gear 234 to drive the first driving gear 234 to rotate. The first driving gear 234 is rotatably installed in the hook frame 21. The two sides of the first driving gear 234 are respectively meshed with the first rack 233 and the second rack 235. When the first rack 233 rises, the first driving gear 234 is driven to rotate counterclockwise and the second rack 235 is driven to descend. When the first rack 233 descends, the first driving gear 234 is driven to rotate clockwise and the second rack 235 is driven to rise. The second rack 235 moves It is arranged in the hook frame 21, and both ends of the second rack 235 pass through the hook frame 21. The end of the second rack 235 close to the first driving rod 231 is rotatably connected to the rotating member 236, preferably connected by a hinge or a rotating shaft, for driving the rotating member 236 to rise and fall; the rotating member 236 is fixedly connected to the guide plate 237, and is hinged to the top of the second rack 235, and is hinged to the positioning member 238 on the side away from the second rack 235. When the second rack 235 rises, it can rotate counterclockwise to drive the guide plate 237 to rotate counterclockwise. When the second rack 235 descends, it can rotate clockwise to drive the guide plate 237 to rotate clockwise. The shape is preferably U-shaped, and the recessed part in the middle is fixedly connected to the guide plate 237, so as to facilitate driving the guide plate 237 to rotate; the guide plate 237 is located on one side of the wire groove 22, adjacent to the hook opening 27, and opposite to the guide member 24, and is used to open or close the wire groove 22. Preferably, it is tilted at one end close to the guide member 24, and the tilting direction is the same as that of the guide member 24, so as to ensure that it can fit with the guide member 24 when closed; the two ends of the positioning member 238 are respectively rotatably connected to the rotating member 236 and the hook frame 21, and are used to drive the rotating member 236 to rotate when the second rack 235 is raised or lowered.

[0069] In this embodiment, the first driving rod 231 is pulled up by pulling the rod 12, thereby driving the first rack 233 to rise, driving the first driving gear 234 to rotate counterclockwise, and then driving the second rack 235 to descend, driving the guide plate 237 to rotate upward, and opening the hook opening 27. At this time, the wire enters the hook frame 21 along the hook opening 27, and then controls the drone to descend and separate from the pull rod assembly (1). The first driving rod 231 is no longer subjected to the upward pulling force, and drives the first rack 233 to descend. The first driving gear 234 rotates clockwise, and then drives the second rack 235 to rise, driving the guide plate 237 to rotate downward, and closing the hook opening 27.

[0070] Preferably, refer to Figure 4 One end of the first rack 233 close to the ladder head body 3 passes through the hook frame 21.

[0071] Preferably, refer to Figure 4 The diameters of the ends of the second rack 235 are larger than the diameter of the hole for accommodating the second rack 235 opened in the hook frame 21, so as to control the lifting distance of the second rack 235.

[0072] In some embodiments of the present invention, reference Figure 3 The positioning hole 232 is provided with a buffer spring 239 at one end close to the first rack 233 to stabilize the pulling speed of the first rack 233 .

[0073] In some embodiments of the present invention, reference Figure 3 , Figure 5 The hooking device 2 further includes a wire fixing component 26, which is located in the wire groove 22 and is used to clamp the wire after it enters the wire groove 22, thereby further fixing the wire.

[0074] The wire fixing assembly 26 includes a sleeve rod 261, a third rack 262, a second driving gear 263, a fourth rack 264, a stabilizing gear 265, a clamping gear 266 and a clamping member 267. The sleeve rod 261 is fixed to the top of the hook frame 21, and the pull rod 12 of the pull rod assembly 1 is slidably installed in the sleeve rod 261, and the end of the pull rod 12 is fixedly connected to the third rack 262; the third rack 262 is fixed to the bottom of the pull rod assembly 1, and its width is greater than the inner diameter of the sleeve rod 261, and it is meshed with the second driving gear 263, and is movably arranged in the hook frame 21, and is driven to rise and fall by the lifting and lowering of the pull rod 12, thereby driving the second driving gear 263 to rotate; the second driving gear 263 is rotatably installed in the hook frame 21, specifically, the hook frame 21 is provided with a space for accommodating the third rack 262, the second driving gear 263, the fourth rack 264, the stabilizing gear 265, and the clamping gear 266, and the second driving gear 263 is respectively connected to the two The third rack 262 and the fourth rack 264 on the side are meshed to drive the fourth rack 264 to mesh and rise and fall; the upper ends of the fourth rack 264 are respectively meshed with the second driving gear 263 and the stabilizing gear 265, and the lower ends are respectively meshed with two clamping gears 266, which are used to drive the clamping gear 266 to rotate, and are movably arranged in the hook frame 21; the stabilizing gear 265 is rotatably installed in the hook frame 21, and is used to stabilize the lifting and lowering of the fourth rack 264; there are two clamping gears 266, and the two clamping gears 266 are symmetrically arranged on both sides of the fourth rack 264, and the clamping gear 266 is fixedly connected to the clamping member 267; the clamping member 267 is located in the wire groove 22, and is used to clamp the wire as the clamping gear 266 rotates.

[0075] In this embodiment, the pulling rod 12 pulls the third rack 262 up, driving the second driving gear 263 to rotate clockwise, the fourth rack 264 descends, and the clamping gear 266 rotates clockwise, driving the clamping member 267 to open. At this time, since the wire enters the hook frame 21, the drone is controlled to descend and separate from the pulling rod assembly (1). The pulling rod 12 is no longer pulled up by force, and the third rack 262 falls back, thereby driving the second driving gear 263 to rotate counterclockwise, the fourth rack 264 rises, and the clamping gear 266 rotates counterclockwise, driving the clamping member 267 to tighten and clamp the wire.

[0076] Preferably, the portion of the clamping member 267 that contacts the wire is arc-shaped to fit the shape of the wire.

[0077] In some embodiments of the present invention, reference Figure 1-3 The ladder head body 3 includes a vertical rod 31 and a horizontal rod 32. There are two vertical rods 31, which are symmetrically arranged and connected to the hook device 2 to stabilize the pulley assembly 4; there are multiple horizontal rods 32, and both ends of the horizontal rod 32 are respectively connected to the two vertical rods 31 for installing the pulley assembly 4.

[0078] In some embodiments of the present invention, reference Figure 1-3 The pulley assembly 4 includes a first pulley 41 and a second pulley 42. The first pulley 41 and the second pulley 42 have the same structure and are used to install ropes. The first pulley 41 is installed in the middle of the ladder head body 3; the second pulley 42 is installed at the bottom of the ladder head body 3, and multiple groups of ropes can be installed.

[0079] In some embodiments of the present invention, reference Figure 1 The first pulley 41 comprises a mounting portion 411 and a rotating wheel 412. The mounting portion 411 is fixed to the middle of the ladder head body 3 and is used to rotatably mount the rotating wheel 412; the edge of the rotating wheel 412 is recessed inwards and is used to install a rope.

[0080] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A conductor ladder head for power transmission line maintenance, characterized in that: include A pull rod assembly, used to be driven by the drone; A hooking device, connected to the pull rod assembly and used for hooking and fixing with the wire; A ladder head body connected to a side of the hook device away from the pull rod assembly; A pulley assembly is installed on the ladder head body and is used for sliding the installation rope.

2. A conductor ladder head for power transmission line maintenance according to claim 1, characterized in that: The pull rod assembly includes a clamping plate, a pull rod and a connecting rod. The card plate is in a V-shape with an opening downward, and is used to connect to the drone; There are two pull rods, which are symmetrically arranged, one end of which is fixed to one side of the opening of the clamping plate, and the other end is connected to the hook device; The two ends of the connecting rod are respectively connected to two pulling rods.

3. The conductor ladder head for power transmission line maintenance according to claim 1, characterized in that: The hooking device comprises a hooking frame, a wire groove, an opening and closing guide assembly and a guide member. There are two hook frames, one end of which is connected to the pull rod assembly and the other end is fixed to the ladder head body for hooking the wire; The wire groove is provided on the hook frame and is used to accommodate the wire; The opening and closing guide assembly is rotatably mounted on the hook frame and is transmission-connected to the pull rod assembly, and is used to open the wire groove when the wire needs to be hooked, and is used to close the wire groove when the wire is hooked; The guide piece is installed on one side of the wire groove and is used for guiding the wire when hooking. The guide piece and the opening and closing guide assembly are symmetrically arranged on both sides of the wire groove.

4. A conductor ladder head for power transmission line maintenance according to claim 3, characterized in that: A guide block is installed in the wire groove, and the guide block and the guide piece form an inclined line for guiding the wire when hooking.

5. The conductor ladder head for power transmission line maintenance according to claim 3, characterized in that: The opening and closing guide assembly includes a first driving rod, a positioning hole, a first rack, a first driving gear, a second rack, a rotating member, a guide plate and a positioning member. One end of the first driving rod is fixedly connected to the pull rod assembly, and the other end is fixedly connected to the first rack, for driving the first rack to rise and fall; The positioning hole is formed on the hook frame and is used to accommodate the first driving rod to pass through so as to fix the moving route of the first driving rod; The first rack is movably disposed in the hook frame and meshes with the first driving gear; The first driving gear is rotatably mounted in the hook frame, and two sides of the first driving gear are respectively meshed with the first rack and the second rack, so as to drive the second rack to rise and fall; The second rack is movably arranged in the hook frame, and both ends of the second rack pass through the hook frame. One end of the second rack close to the first driving rod is rotatably connected to the rotating member, and is used to drive the rotating member to rise and fall. The rotating member is fixedly connected to the guide plate and is used to drive the guide plate to rotate; The guide plate is located on one side of the wire groove and is arranged opposite to the guide member, and is used to open or close the wire groove; The two ends of the positioning member are rotatably connected to the rotating member and the hook frame respectively, and are used to drive the rotating member to rotate when the second rack is raised or lowered.

6. A conductor ladder head for power transmission line maintenance according to claim 5, characterized in that: The positioning hole is sleeved with a buffer spring at one end close to the first rack, which is used to stabilize the pulling speed of the first rack.

7. The conductor ladder head for power transmission line maintenance according to claim 3, characterized in that: It also includes a wire fixing assembly, which includes a sleeve rod, a third rack, a second driving gear, a fourth rack, a stabilizing gear, a clamping gear and a clamping member. The sleeve rod is fixed on the top of the hook frame, and the pull rod assembly is slidably installed in the sleeve rod; The third rack is fixed to the bottom of the pull rod assembly and meshes with the second driving gear, and is movably arranged in the hook frame; The second driving gear is rotatably mounted in the hook frame and is respectively meshed with the third rack and the fourth rack on both sides; The fourth rack has two sides of its upper end meshed with the second driving gear and the stabilizing gear respectively, and its lower end meshed with two clamping gears respectively, for driving the clamping gears to rotate, and is movably arranged in the hook frame; The stabilizing gear is rotatably mounted in the hook frame and is used to stabilize the lifting of the fourth rack; There are two clamping gears, and the two clamping gears are symmetrically arranged on both sides of the fourth rack, and the clamping gears are fixedly connected to the clamping member; The clamping piece is located in the wire groove and is used for clamping the wire as the clamping gear rotates.

8. The conductor ladder head for power transmission line maintenance according to claim 1, characterized in that: The ladder head body includes a vertical rod and a horizontal rod. There are two vertical rods, which are symmetrically arranged and both connected to the hook device; There are multiple cross bars, and both ends of the cross bar are respectively connected to two vertical bars for installing the pulley assembly.

9. A conductor ladder head for power transmission line maintenance according to claim 1, characterized in that: The pulley assembly comprises a first pulley and a second pulley, The first pulley and the second pulley have the same structure and are used for installing ropes, and the first pulley is installed in the middle of the ladder head body; The second pulley is installed at the bottom of the ladder head body.

10. A conductor ladder head for power transmission line maintenance according to claim 9, characterized in that: The first pulley includes a mounting portion and a rotating wheel, The mounting portion is fixed to the middle of the ladder head body and is used for rotatably mounting the rotating wheel; The edge of the rotating wheel is recessed inwards for installing a rope.

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