Power transmission line overhead line lifting device
By designing an overhead line lifting device for power transmission lines including telescopic rod, ratchet transmission part and hydraulic part, the problem of difficulty in lifting wires in large lines is solved, and efficient and safe wire lifting effect is achieved.
Patent Information
- Application Number
- CN202411873718.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-03-25
AI Technical Summary
In the renovation of rural network construction lines, especially in large lines and large distances, it is difficult for manpower to increase the conductor to insulators, resulting in low operating efficiency and high safety risks.
A power transmission line overhead wire lifting device is designed, including a fixed substrate, a retractable telescopic rod, a hook, a removable steel wire rope, a ratchet transmission part, a hydraulic part and a clamping part. The retractor is driven to shrink the wire rope through the ratchet transmission part, and the telescopic rod is retracted to make the hook hook the wire; then the telescopic rod is pushed up through the hydraulic part to lift the wire to the insulator.
The device can efficiently lift off the disengaged wires, improve work efficiency and safety of the workers, and has a simple structure and is easy to repair and maintain.
Smart Images
Figure CN119695710A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of electric auxiliary equipment, and in particular to a wire lifting device for an overhead wire of a power transmission line. Background Art
[0002] In the process of rural power grid construction and line reconstruction, corner poles and top bars are often encountered. When tightening the line, if the conductor slips off the insulator, it is difficult to lift the conductor onto the insulator by manpower, especially for large lines with large spans. The line's own weight and tension reach thousands of kilograms. The general practice is to loosen the line and then lift it, but this operation method invisibly wastes a lot of manpower and material resources. Summary of the invention
[0003] The technical problem to be solved by the present invention is to provide a transmission line overhead wire lifting device, which can lift the detached wires, improve work efficiency and the safety of operators; the structure is simple and easy to repair and maintain.
[0004] In order to solve the above technical problems, the present invention provides a transmission line overhead wire lifting device, comprising: a fixed base plate, a telescopic rod that can be extended and retracted is hinged on one side of the fixed base plate, a hook for hooking the wire is provided at the end of the telescopic rod, and a detachable wire rope is installed on the telescopic rod; a wire-retracting assembly for contracting the telescopic rod by tightening the wire rope, the wire-retracting assembly is installed on the fixed base plate, and the wire-retracting assembly comprises: a wire-retracting wheel that can rotate relative to the fixed base plate, a ratchet transmission part for driving the wire-retracting wheel to rotate, and a wire-retracting assembly for rotating the wire-retracting wheel. A limiting part is used to make the take-up wheel rotate in one direction; a hydraulic part is used to push up the telescopic rod to lift the wire on the linkage hook, and the hydraulic part is installed at one end of the fixed base plate; and a clamping part is installed on the opposite sides of the fixed base plate, wherein: the transmission line overhead wire lifter is clamped on the line frame through the clamping part; the take-up wheel is driven to rotate in one direction through the ratchet transmission part, and the take-up wheel rotates to take up the wire and pull the wire rope, and the linkage telescopic rod is contracted, so that the hook hooks the wire; the telescopic rod is pushed up by the hydraulic part to lift the wire on the hook onto the insulator.
[0005] Among them, the ratchet transmission part includes: a shell, a rocker arm, a first rotating shaft, and a first ratchet connected to the first rotating shaft. The first rotating shaft and the first ratchet are installed inside the shell, and the rocker arm is connected to the shell. Among them,: an annular tooth groove is provided at the bottom of the take-up wheel, and the first ratchet is meshed with a gear in the annular tooth groove. Among them,: the first ratchet drives the gear to rotate, thereby pulling the wire rope through the annular tooth groove to link the take-up wheel.
[0006] The ratchet transmission part also includes: a first spring connected inside the shell, and a limit lever connected to the first spring, wherein: by changing the position of the rocker arm, the relative position of the limit lever and the first ratchet is changed in linkage to limit the rotation of the first ratchet.
[0007] Among them, the ratchet transmission part also includes: a second rotating shaft connected to the limit stop rod and a toggle button connected to the second rotating shaft, wherein: by toggling the toggle button, the second rotating shaft is linked to drive the limit stop rod to disengage from the first ratchet, and the take-up wheel rotates to lengthen the wire rope.
[0008] Among them, the limiting part includes: a second ratchet installed at the bottom of the take-up wheel, a limiting block, a second spring connected to the limiting block, a sliding rod connected to the second spring, and a connecting rod connected to the sliding rod, wherein: the connecting rod is slidably installed in the through groove of the fixed base plate, and the sliding rod is slidably installed in the sliding sleeve inside the fixed base plate, wherein: the second spring presses the limiting block to be clamped on the second ratchet to prevent the take-up wheel from rotating; pulling the connecting rod, and sequentially linking the sliding rod, the second spring and the limiting block, so that the limiting block is disengaged from the second ratchet to release the limitation of the take-up wheel.
[0009] Wherein, a nut is arranged on the top of the connecting rod to limit the position of the connecting rod in the through groove.
[0010] The hydraulic unit comprises a manual hydraulic rod and a hydraulic cylinder connected to the manual hydraulic rod. The manual hydraulic rod is mounted on a fixed base plate, and the hydraulic cylinder is mounted on a telescopic rod.
[0011] Among them, the clamping part includes: slide grooves opened on both sides of the fixed base plate, an I-shaped limit clamping plate slidably arranged in the slide groove, a rotatable bidirectional screw installed in the fixed base plate, an internal thread block installed on the bidirectional screw, a first bevel gear installed on the bidirectional screw, a second bevel gear connected to the first bevel gear and a rotating wheel connected to the second bevel gear, wherein: the rotating wheel is arranged on the surface of the fixed base plate, the internal thread block is fixedly connected to the I-shaped limit clamping plate, wherein: the rotating wheel drives the second bevel gear to rotate, and the first bevel gear drives the bidirectional screw to rotate, and the internal thread block on the bidirectional screw drives the I-shaped limit clamping plate to slide along the slide groove to both sides, thereby being clamped on the line frame for fixation.
[0012] A first wire wheel and a second wire wheel are rotatably arranged on the fixed base plate, and a guide column is fixedly arranged on the upper end of the telescopic rod, wherein: the steel wire rope passes through the guide column, the first wire wheel and the second wire wheel respectively, and is connected to the take-up wheel.
[0013] Wherein, a turning handle is arranged on the take-up wheel.
[0014] The implementation of the overhead wire lifting device for a power transmission line of the present invention has the following beneficial effects: the overhead wire lifting device for a power transmission line comprises: a fixed base plate, a telescopic rod that can be extended and retracted is hinged on one side of the fixed base plate, a hook for hooking the electric wire is provided at the end of the telescopic rod, and a detachable steel wire rope is installed on the telescopic rod; a wire-retracting assembly for contracting the telescopic rod by tightening the steel wire rope, the wire-retracting assembly is installed on the fixed base plate, and the wire-retracting assembly comprises: a wire-retracting wheel that can rotate relative to the fixed base plate, a ratchet transmission part for driving the wire-retracting wheel to rotate, and a limit part for making the wire-retracting wheel rotate in one direction; A hydraulic part is used for pushing up the telescopic rod to lift the wire on the linkage hook, and the hydraulic part is installed at one end of the fixed base plate; and a clamping part is installed on the opposite sides of the fixed base plate, wherein: the overhead wire lifting device of the transmission line is clamped on the line frame through the clamping part; the take-up wheel is driven to rotate in one direction through the ratchet transmission part, and the take-up wheel rotates to take up the wire and pull the wire rope, and the linkage telescopic rod is contracted to make the hook hook the wire; the telescopic rod is pushed up by the hydraulic part to lift the wire on the hook onto the insulator, and the detached wire can be lifted, thereby improving work efficiency and the safety of operators; the structure is simple and easy to repair and maintain. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the overhead wire lifting device of the power transmission line according to an embodiment of the present invention.
[0017] Figure 2 The figure is a schematic cross-sectional structure diagram of a transmission line overhead wire lifting device according to an embodiment of the present invention.
[0018] Figure 3 The figure is a schematic cross-sectional structure diagram of a ratchet transmission part at one angle according to an embodiment of the present invention.
[0019] Figure 4 FIG. 2 is a schematic cross-sectional structure diagram of a ratchet transmission part according to an embodiment of the present invention from another angle.
[0020] Figure 5 Schematic diagram of the structure of the limiting part of the embodiment of the present invention.
[0021] Figure 6 It is a schematic diagram of the cross-sectional structure of the clamping portion of an embodiment of the present invention. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0023] like Figure 1-Figure 6 The figure shows the first embodiment of the overhead wire lifting device for power transmission lines of the present invention.
[0024] The overhead wire lifting device for a power transmission line in this embodiment comprises: a fixed base plate 1, a telescopic rod 8 which is hinged on one side of the fixed base plate 1, a hook 9 for hooking the wire is provided at the end of the telescopic rod 8, and a detachable steel wire rope is installed on the telescopic rod 8; and a wire retracting and releasing assembly which is used to retract the telescopic rod 8 by tightening the steel wire rope.
[0025] The wire-reeling and -winding assembly is mounted on a fixed base plate 1, and includes: a wire-reeling and -winding wheel 4 that can rotate relative to the fixed base plate 1, a ratchet transmission part 15 for driving the wire-reeling and -winding wheel 4 to rotate, and a limiting part for enabling the wire-reeling and -winding wheel 4 to rotate in one direction; a hydraulic part for pushing up the telescopic rod 8 to lift the wire on the linkage hook 9, the hydraulic part being mounted on one end of the fixed base plate; and a clamping part mounted on opposite sides of the fixed base plate 1.
[0026] Among them: a turning handle 11 is fixedly provided on the upper end of the take-up wheel 4; the overhead wire lifting device of the transmission line is clamped on the line frame through the clamping part; the take-up wheel 4 is driven to rotate unidirectionally through the ratchet transmission part 15, the take-up wheel 4 rotates to take up the wire and pull the wire rope, and the telescopic rod 8 is linked to contract, so that the hook 9 hooks the wire; the telescopic rod 8 is pushed up by the hydraulic part to lift the wire on the hook 9 to the insulator.
[0027] During specific implementation, the functions of the telescopic rod 8 and the hook 9 are: to hook the electric wire, and when the telescopic rod 8 is pushed up, the electric wire on the hook 9 is lifted up to the insulator to complete the operation.
[0028] Specifically, the top of the fixed base plate 1 is provided with a first wire wheel 3 and a second wire wheel 5, and the upper end of the telescopic rod 8 is fixed with a guide column 10. The wire rope passes through the guide column 10, the first wire wheel 3 and the second wire wheel 5 and the take-up wheel 4 and is connected to the take-up wheel 4.
[0029] Furthermore, the ratchet transmission part 15 is mounted on the fixed base plate 1, and includes: a housing 24, a rocker arm 29, a first rotating shaft 25, and a first ratchet 26 connected to the first rotating shaft 25. The first rotating shaft 25 and the first ratchet 26 are mounted inside the housing 24, and the rocker arm 29 is connected to the housing 24. Among them: an annular tooth groove 19 is provided at the bottom of the take-up wheel 4, and the first ratchet 26 is meshed and connected in the annular tooth groove 19 through a gear 17, wherein: the first ratchet 26 drives the gear 17 to rotate, thereby linking the take-up wheel 4 to pull the wire rope through the annular tooth groove 19.
[0030] Among them, the ratchet transmission part 15 also includes: a first spring 28 connected to the inside of the shell 24, and a limit lever 27 connected to the first spring 28, wherein: by changing the position of the rocker arm 29, the relative position of the limit lever 27 and the first ratchet 26 is linked to change to limit the rotation of the first ratchet 26.
[0031] Among them, the ratchet transmission part 15 also includes: a second rotating shaft 30 connected to the limit stop rod 27 and a toggle button 31 connected to the second rotating shaft 30, wherein: by toggling the toggle button 31, the second rotating shaft 30 is linked to drive the limit stop rod 27 to disengage from the first ratchet 26, and the take-up wheel 4 rotates to lengthen the wire rope.
[0032] During implementation, the first ratchet 26 is disposed inside the housing 24, and the inside of the housing 24 is connected to the limit lever 27 through the second rotating shaft 30. One end of the limit lever 27 is engaged in the surface teeth of the first ratchet 26, and a first spring 28 is fixedly disposed on one side of the limit lever 27. A toggle button 31 fixed to the second rotating shaft 30 is disposed on the outer surface of the housing 24.
[0033] When the rocker arm 29 drives the housing 24 to rotate to one side, the limit stop lever 27 does not block the first ratchet 26. When it rotates to the other side, the first spring 28 pushes the limit stop lever 27 to block the first ratchet 26. During this process, the first ratchet 26 drives the gear 17 to rotate, thereby acting on the annular tooth groove 19 on the lower surface of the take-up wheel 4, driving the take-up wheel 4 to rotate and reel in the wire to pull the wire rope, which in turn drives the telescopic rod 8 to contract, allowing the hook 9 to hook the wire.
[0034] Furthermore, the limiting part includes: a second ratchet 18 installed at the bottom of the take-up wheel 4, a limiting block 20, a second spring 21 connected to the limiting block 20, a sliding rod 23 connected to the second spring 21, and a connecting rod 13 connected to the sliding rod 23, wherein: the connecting rod 13 is slidably installed in the through groove 14 of the fixed base plate 1, and the sliding rod 23 is slidably installed in the sliding sleeve 22 inside the fixed base plate 1, wherein: the second spring 21 presses the limiting block 20 to be clamped on the second ratchet 18 to prevent the take-up wheel 4 from rotating; pulling the connecting rod 13, the sliding rod 23, the second spring 21 and the limiting block 20 in sequence, so that the limiting block 20 is disengaged from the second ratchet 18 to release the limitation of the take-up wheel 4.
[0035] A nut 12 is installed on the top of the connecting rod 13 to limit the position of the connecting rod 13 in the through slot 14 .
[0036] During implementation, the sliding sleeve 22 is installed on the inner side of the fixed base plate 1, and a sliding rod 23 is slidably provided inside the sliding sleeve 22. A limit block 20 is fixedly provided at one end of the sliding rod 23. A second ratchet 18 is fixedly provided at the lower end of the take-up wheel 4 through a connecting shaft. The second ratchet 18 is engaged and connected with the limit block 20. A second spring 21 is sleeved on the surface of the sliding rod 23 between the limit block 20 and the sliding sleeve 22. A connecting rod 13 is fixedly provided at the other end of the sliding rod 23, and a nut 12 is threadedly connected to the upper end of the connecting rod 13.
[0037] When the take-up wheel 4 is winding up, the second ratchet 18 at the lower end rotates accordingly. At the same time, the second ratchet 18 squeezes the bevel of the limit block 20 when winding up. The limit block 20 does not block the rotation of the second ratchet 18. The second spring 21 presses against the limit block 20 and is always stuck on the second ratchet 18, thereby preventing the take-up wheel 4 from rotating.
[0038] When releasing the line of the take-up wheel 4, it is necessary to pull the connecting rod 13 to make it slide backward in the through groove 14, and then rotate the nut 12 to fix it. The connecting rod 13 pulls the sliding rod 23 to disengage the limit block 20 from the second ratchet 18, and at the same time, turn the toggle button 31. The toggle button 31 drives the limit stop rod 27 to disengage from the first rotating shaft 25 by driving the second rotating shaft 30. At this time, the take-up wheel 4 can release the wire rope by turning the handle 11.
[0039] Furthermore, the hydraulic unit includes: a manual hydraulic rod 6 and a hydraulic cylinder 7 connected to the manual hydraulic rod 6, the manual hydraulic rod 6 is mounted on the fixed base plate 1, and the hydraulic cylinder 7 is mounted on the telescopic rod 8. The other end of the hydraulic cylinder 7 is hinged to the side of the telescopic rod 8, and the telescopic rod 8 is stretched so that the hook 9 is located outside the detached wire.
[0040] During implementation, the manual hydraulic rod 6 is installed on the fixed base plate 1, and the manual hydraulic rod 6 is connected to the hydraulic cylinder 7 through a pipeline. Pressing the manual hydraulic rod 6 drives the hydraulic cylinder 7 to extend, thereby driving the telescopic rod 8 to lift, and lift the wire on the lower side of the insulator. At this time, if the ratchet transmission part 15 is continued to be pressed to recover the wire rope, the resetting operation is implemented.
[0041] Furthermore, the clamping part includes: a slide groove 36 opened on both sides of the fixed base plate 1, an I-shaped limit clamping plate 16 slidably arranged in the slide groove 36, a rotatable bidirectional screw 32 installed in the fixed base plate 1, an internal thread block 33 installed on the bidirectional screw 32, a first bevel gear 34 installed on the bidirectional screw 32, a second bevel gear 35 connected to the first bevel gear 34, and a rotating wheel 2 connected to the second bevel gear 35, wherein: the rotating wheel 2 is arranged on the surface of the fixed base plate 1, and the internal thread block 33 is fixedly connected to the I-shaped limit clamping plate 16, wherein: the rotating wheel 2 drives the second bevel gear 35 to rotate, and the first bevel gear 34 drives the bidirectional screw 32 to rotate, and the internal thread block 33 on the bidirectional screw 32 drives the I-shaped limit clamping plate 16 to slide along the slide groove 36 to both sides, thereby being clamped on the line frame for fixation.
[0042] During implementation, sliding grooves 36 are provided on both sides of the fixed base plate 1, and I-shaped limit clamps 16 are slidably provided on both sides of the sliding groove 36. A bidirectional screw rod 32 is rotatably provided inside the fixed base plate 1, and the threads on both sides of the bidirectional screw rod 32 are arranged in opposite directions. Internal thread blocks 33 are respectively provided on both sides of the bidirectional screw rod 32 through threaded connections, and the internal thread blocks 33 are fixedly connected to the I-shaped limit clamps 16, and a first bevel gear 34 is fixedly provided on the surface of the bidirectional screw rod 32.
[0043] A second bevel gear 35 is rotatably provided at the lower end of the rotating wheel 2, and the first bevel gear 34 is meshed and connected with the second bevel gear 35. The second bevel gear 35 is driven to rotate by rotating the rotating wheel 2, thereby acting on the first bevel gear 34, driving the bidirectional screw rod 32 to rotate, and the internal thread blocks 33 on the two side surfaces of the bidirectional screw rod 32 drive the I-shaped limit clamping plate 16 to slide to both sides in the slide groove 36.
[0044] In the specific implementation of the overhead wire lifting device for power transmission lines in this embodiment, the second bevel gear 35 is driven to rotate by rotating the rotating wheel 2, thereby acting on the first bevel gear 34, driving the bidirectional screw rod 32 to rotate, and the internal thread blocks 33 on both sides of the bidirectional screw rod 32 drive the I-shaped limit clamping plate 16 to slide to both sides in the slide groove 36, thereby being clamped on the line frame to complete the fixation;
[0045] The telescopic rod 8 is stretched so that the hook 9 is located outside the detached wire. At this time, the ratchet transmission part 15 is pressed, and the rocker arm 29 drives the housing 24 to rotate. When rotating to one side, the limit stop lever 27 does not block the first ratchet 26. When rotating to the other side, the first spring 28 pushes the limit stop lever 27 to block the first ratchet 26. At this time, the first ratchet 26 drives the gear 17 to rotate, thereby acting on the annular tooth groove 19 on the lower surface of the take-up wheel 4, driving the take-up wheel 4 to rotate and reel in the wire to pull the wire rope. At this time, the telescopic rod 8 is driven to contract, so that the hook 9 hooks the wire.
[0046] Pressing the manual hydraulic rod 6 drives the hydraulic cylinder 7 to extend, thereby driving the telescopic rod 8 to lift up the wire under the insulator. At this time, continue to press the ratchet transmission part 15 to recycle the wire rope and pull the wire to the inside of the insulator for easy resetting.
[0047] When the take-up wheel 4 reels in the line, the second ratchet 18 at the lower end rotates accordingly. At the same time, the second ratchet 18 squeezes the bevel of the limit block 20 when the line is reeled in. The limit block 20 does not block the rotation of the second ratchet 18. The second spring 21 presses against the limit block 20 and is always stuck on the second ratchet 18, thereby preventing the take-up wheel 4 from rotating.
[0048] When the take-up wheel 4 releases the line, it is necessary to pull the connecting rod 13 to make it slide backward in the through groove 14, and then rotate the nut 12 to fix it. The connecting rod 13 pulls the sliding rod 23 to disengage the limit block 20 from the second ratchet 18, and at the same time, turn the toggle button 31. The toggle button 31 drives the limit stop rod 27 to disengage from the first rotating shaft 25 by driving the second rotating shaft 30. At this time, the take-up wheel 4 can lengthen the wire rope by turning the handle 11.
[0049] The invention provides a power transmission line overhead wire lifting device, which has the following beneficial effects: the power transmission line overhead wire lifting device comprises: a fixed base plate, a telescopic rod which can be extended and retracted is hinged on one side of the fixed base plate, a hook for hooking the electric wire is provided at the end of the telescopic rod, and a detachable steel wire rope is installed on the telescopic rod; a wire-retracting assembly for contracting the telescopic rod by tightening the steel wire rope, the wire-retracting assembly is installed on the fixed base plate, and the wire-retracting assembly comprises: a wire-retracting wheel which can rotate relative to the fixed base plate, a ratchet transmission part for driving the wire-retracting wheel to rotate, and a limit part for making the wire-retracting wheel rotate in one direction; a wire-retracting assembly for pushing the wire-retracting wheel to rotate; a wire-retracting assembly for pulling the wire-retracting wheel to rotate; a wire-retracting assembly for pulling the wire-retracting wheel to rotate in one direction ... The hydraulic part of the telescopic rod is used to lift the wire on the linkage hook, and the hydraulic part is installed at one end of the fixed base plate; and the clamping parts are installed on the opposite sides of the fixed base plate, wherein: the overhead wire lifting device of the transmission line is clamped on the line frame through the clamping parts; the take-up wheel is driven to rotate in one direction through the ratchet transmission part, and the take-up wheel rotates to reel in the wire and pull the wire rope, and the linkage telescopic rod is contracted to make the hook hook the wire; the telescopic rod is pushed up by the hydraulic part to lift the wire on the hook onto the insulator, and the detached wire can be lifted by retracting and releasing the wire rope, thereby improving work efficiency and the safety of operators; the structure is simple and easy to repair and maintain.
Claims
1. A transmission line overhead wire lifting device, characterized in that: include: A fixed base plate, one side of which is hinged with a telescopic rod that can be extended and retracted, an end of the telescopic rod is provided with a hook for hooking an electric wire, and a detachable steel wire rope is installed on the telescopic rod; A wire-reeling assembly for contracting the telescopic rod by tightening the wire rope, the wire-reeling assembly being mounted on the fixed base plate, the wire-reeling assembly comprising: a wire-reeling wheel rotatable relative to the fixed base plate, a ratchet transmission part for driving the wire-reeling wheel to rotate, and a limiting part for making the wire-reeling wheel rotate in one direction; A hydraulic unit for pushing up the telescopic rod to link the wire on the hook to lift, the hydraulic unit being installed at one end of the fixed base plate; and The clamping parts are installed on the two opposite sides of the fixed base plate, wherein: the overhead wire lifting device of the power transmission line is clamped on the line frame through the clamping parts; The ratchet transmission part drives the wire take-up wheel to rotate unidirectionally, and the wire take-up wheel rotates to take up the wire and pull the wire rope, which links the telescopic rod to contract, so that the hook hooks the wire; The telescopic rod is pushed up by the hydraulic unit to lift the wire on the hook onto the insulator.
2. The overhead wire lifting device for a power transmission line according to claim 1, characterized in that: The ratchet transmission part comprises: a housing, a rocker arm, a first rotating shaft, and a first ratchet connected to the first rotating shaft, wherein the first rotating shaft and the first ratchet are installed inside the housing, and the rocker arm is connected to the housing, wherein: An annular tooth groove is provided at the bottom of the take-up wheel, and the first ratchet is meshedly connected to the annular tooth groove through a gear, wherein: the first ratchet drives the gear to rotate, thereby linking the take-up wheel to pull the wire rope through the annular tooth groove.
3. The overhead wire lifting device for a power transmission line according to claim 2, characterized in that: The ratchet transmission part further includes: a first spring connected to the inside of the housing, and a limit stop rod connected to the first spring, wherein: By changing the position of the rocker arm, the relative position of the limit lever and the first ratchet wheel is changed in linkage, so as to limit the rotation of the first ratchet wheel.
4. The overhead wire lifting device for a power transmission line according to claim 3, characterized in that: The ratchet transmission part also includes: a second rotating shaft connected to the limit stop lever and a toggle button connected to the second rotating shaft, wherein: by toggling the toggle button, the second rotating shaft is linked to drive the limit stop lever to disengage from the first ratchet, and the take-up wheel rotates to lengthen the wire rope.
5. The overhead wire lifting device for a power transmission line according to claim 1, characterized in that: The limiting part includes: a second ratchet wheel installed at the bottom of the take-up wheel, a limiting block, a second spring connected to the limiting block, a sliding rod connected to the second spring, and a connecting rod connected to the sliding rod, wherein: The connecting rod is slidably mounted in the through slot of the fixed base plate, and the sliding rod is slidably mounted in the sliding sleeve inside the fixed base plate, wherein: the second spring presses the limit block to be clamped on the second ratchet wheel to prevent the take-up wheel from rotating; The connecting rod is pulled to sequentially link the sliding rod, the second spring and the limiting block, so that the limiting block is disengaged from the second ratchet wheel, so as to release the limiting of the take-up wheel.
6. The overhead wire lifting device for a power transmission line according to claim 5, characterized in that: A nut for limiting the position of the connecting rod in the through slot is arranged on the top of the connecting rod.
7. The overhead wire lifting device for a power transmission line according to claim 1, characterized in that: The hydraulic unit comprises a manual hydraulic rod and a hydraulic cylinder connected to the manual hydraulic rod, wherein the manual hydraulic rod is mounted on the fixed base plate, and the hydraulic cylinder is mounted on the telescopic rod.
8. The overhead wire lifting device for a power transmission line according to claim 1, characterized in that: The clamping part includes: a slide groove opened on both sides of the interior of the fixed base plate, an I-shaped limit clamping plate slidably arranged in the slide groove, a rotatable bidirectional screw installed in the interior of the fixed base plate, an internal thread block installed on the bidirectional screw, a first bevel gear installed on the bidirectional screw, a second bevel gear connected to the first bevel gear, and a rotating wheel connected to the second bevel gear, wherein: the rotating wheel is arranged on the surface of the fixed base plate, the internal thread block is fixedly connected to the I-shaped limit clamping plate, wherein: The rotating wheel drives the second bevel gear to rotate, and the first bevel gear drives the bidirectional screw to rotate. The internal thread block on the bidirectional screw drives the I-shaped limiting clamping plate to slide along the sliding groove to both sides, so as to be clamped on the line frame for fixing.
9. The overhead wire lifting device for a power transmission line according to claim 1, characterized in that: A first wire wheel and a second wire wheel are rotatably arranged on the fixed base plate, and a guide column is fixedly arranged on the upper end of the telescopic rod, wherein: the steel wire rope passes through the guide column, the first wire wheel and the second wire wheel respectively, and is connected to the take-up wheel.
10. The overhead wire lifting device for a power transmission line according to claim 1, characterized in that: The take-up wheel is provided with a turning handle.