Cable overhead maintenance equipment for electric power overhaul

Abstract

The invention discloses cable overhead maintenance equipment for electric power overhaul, and relates to the technical field of cable overhead maintenance equipment, the cable overhead maintenance equipment comprises a supporting column, and a side plate A is fixedly mounted on the side surface of the supporting column. According to the invention, when the screw rod A rotates, the lifting rod is driven to slide upwards in the supporting column, and meanwhile, the side plate B is driven to rise from the side plate A, so that the guardrail B is driven to slide upwards from the surface of the guardrail A through the side plate B, and after the lifting rod drives the workbench to rise, maintenance personnel can climb on the workbench through the pedal and the pedal groove; in the climbing process, a worker can open the guard bar B by shifting the baffle, the guard bar A and the guard bar B can protect a maintainer, after the maintainer climbs to the position above the baffle, the baffle can rotate under the torsion effect of the torsion spring A, and therefore the guard bar B is closed through the baffle, and the maintainer can be protected. And therefore, the situation that the maintenance personnel fall off due to foot slippage when climbing the workbench is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of cable overhead maintenance equipment, in particular to a cable overhead maintenance equipment for electric power maintenance. Background Art

[0002] Overhead cable maintenance equipment for power maintenance is mainly used for the maintenance, inspection and management of high-voltage transmission cables in power systems. These devices help maintenance personnel to perform inspections without leaving the power system, ensuring the stability and safety of the power supply system.

[0003] For example, the "A Type of Cable Overhead Maintenance Equipment for Power Maintenance" with publication number: CN113374399A includes a maintenance platform, a suspension rod is fixedly connected to the bottom of the maintenance platform, an internal thread block is slidably fitted between the inner side walls of the strip-shaped through-hole, semicircular plates are fixedly connected to the opposite sides of the internal thread block, an arc-shaped slide groove is provided on the inner wall of the semicircular plate, a connecting rod is fixedly connected to one side of the first slider, one end of the connecting rod is fixedly connected to the side surface of the circular ring, a support rod is fixedly connected to the side surface of the circular ring, and a cable clamping assembly is fixedly connected to one end of the support rod. The present invention uses the design of the cable clamping assembly, the internal thread block, the semicircular plate, the threaded rod and the pressure rod to place the two disconnected cable ends on both sides of the maintenance platform, which is convenient for maintenance personnel to dock and repair the cable ends on the maintenance platform, avoids frequent climbing by maintenance personnel, reduces the labor intensity of maintenance personnel, and improves work efficiency.

[0004] However, in the prior art, although this type of maintenance setting has the effect of preventing maintenance personnel from frequently climbing up and reducing the labor intensity of maintenance personnel, it is lacking in protection for maintenance personnel when climbing up. Since the general shape of this type of maintenance device is similar to a stepladder, when maintaining cables outdoors, they usually encounter bad weather, such as strong wind, rain and snow. When maintenance personnel climb up in strong winds or rain and snow, their feet may slip off the pedals due to rain and snow on the soles or pedals. This situation will cause the maintenance personnel to fall from a height and get injured, and even threaten the life safety of the maintenance personnel. Summary of the invention

[0005] The object of the present invention is to provide an overhead cable maintenance device for power maintenance to solve the problem that the cable maintenance device proposed in the above background technology does not have an anti-fall structure, which causes the maintenance personnel's feet to slip and pedals, causing the maintenance personnel to fall.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an overhead cable maintenance device for power maintenance, comprising a support column, a side panel A is fixedly installed on the side of the support column, a guardrail A is fixedly installed on the surface of the side panel A, a motor A is fixedly installed inside the support column, a screw rod A is installed on the output end of the motor A, a limiting groove is provided inside the support column, a lifting rod is slidably connected inside the support column, a side panel B is fixedly installed on the side of the lifting rod, a guardrail B is fixedly installed on the surface of the side panel B, a workbench is fixedly installed on the top of the lifting rod, a guardrail C is fixedly installed on the top surface of the workbench, a baffle is provided on the inner surface of the guardrail B, a rotating shaft A is fixedly installed on the side of the baffle, a through hole is penetrated through the top surface of the workbench, a cover plate is provided on the top surface of the through hole, and a rotating shaft B is fixedly installed on the side of the cover plate.

[0007] Preferably, a pedal is fixedly installed on the surface of the side panel A, a handle is fixedly installed on the surface of the pedal, a roller is fixedly installed on the side of the lifting rod, a pedal groove is opened on the surface of the side panel B, a torsion spring A is sleeved on the surface of the rotating shaft A, a torsion spring B is sleeved on the surface of the rotating shaft B, and a push handle is fixedly installed on the bottom surface of the cover plate.

[0008] Preferably, one end of the torsion spring A is connected to the side of the baffle, and the other end is connected to the inner surface of the guardrail B. One end of the torsion spring B is connected to the side of the cover plate, and the other end is connected to the inner surface of the workbench. The screw rod A is rotationally connected to the support column, the lifting rod is threadedly connected to the screw rod A, the roller is rollingly connected to the limit groove, and observation holes are penetrated through the sides of the guardrail A and the guardrail B.

[0009] Preferably, the side panel B is slidably connected to the side panel A, the rotating shaft A is rotationally connected to the guardrail B, and the rotating shaft B is rotationally connected to the workbench.

[0010] Preferably, the number of the baffles is four groups, and the four groups of baffles are evenly distributed inside the guardrail B, and the guardrail B is slidably connected to the guardrail A.

[0011] Preferably, the support column is internally rotatably connected with a bidirectional screw rod B, one end of the bidirectional screw rod B is fixedly installed with a gear A, and the other end is fixedly installed with a rotating block, the rotating block is internally slidably connected with a turning handle, the support column is internally slidably connected with clamping blocks A and B, the support column is internally rotatably connected with gear B, the surface of the gear B is fixedly installed with a bidirectional screw rod C, the support column is internally slidably connected with clamping blocks C and D, and the surfaces of the gear A and gear B are provided with toothed chains.

[0012] Preferably, the rotating block and gear A are both rotatably connected to the support column, the bidirectional screw B is connected to the clamping block A and the clamping block B through threads, and the bidirectional screw C is connected to the clamping block C and the clamping block D through threads.

[0013] Preferably, the gear A and the gear B are both meshed with a toothed chain, and the bidirectional screw rod B is rotationally connected to the support column.

[0014] Preferably, a bidirectional motor B is fixedly installed inside the workbench, a transmission shaft is installed at the output end of the bidirectional motor B, a gear C is fixedly installed at one end of the transmission shaft, side frames are installed on both sides of the workbench, side frames are slidably connected to the inside of side rods, tooth grooves are provided on the surface of the side rods, a fixing plate is fixedly installed on the bottom end of the side rods, a sliding groove is provided on the surface of the fixing plate, a fastening ring is slidably connected to the inside of the sliding groove, an insertion strip is inserted into the inside of the fastening ring, and a fixed block is rotatably connected to the top surface of the fastening ring.

[0015] Preferably, the gear C is rotationally connected to the side frame, the gear C is meshed with the tooth groove, and the insertion strip is threadedly connected to the fixing block.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, when the screw rod A rotates, it drives the lifting rod to slide upward inside the support column, and at the same time drives the side panel B to rise from the side panel A, thereby driving the guardrail B to slide upward from the surface of the guardrail A through the side panel B. After the lifting rod drives the workbench to rise, the maintenance personnel can climb onto the workbench through the pedals and the foot grooves. During the climbing process, the staff can open the guardrail B by turning the baffle plate, and the guardrail A and the guardrail B will also protect the maintenance personnel. After the maintenance personnel climb to the top of the baffle plate, the baffle plate will rotate due to the torsion force of the torsion spring A, thereby closing the guardrail B through the baffle plate, thereby preventing the maintenance personnel from falling due to foot slipping when climbing the workbench.

[0017] 2. In the present invention, by rotating the rotating block, the rotating block will drive the two-way screw rod B to rotate when rotating, and the two-way screw rod B will drive the clamping block A and the clamping block B to slide inside the support column when rotating, and will also drive the gear A to rotate. When the gear A rotates, it will drive the gear B to rotate through the tooth chain, and the gear B will drive the two-way screw rod C to rotate, and the two-way screw rod C will drive the clamping block C and the clamping block D to slide inside the support column, so that the cable support rod is clamped by the clamping block A, the clamping block B, the clamping block C and the clamping block D, thereby achieving the effect of limiting and fixing the support column, preventing the maintenance personnel from losing their center of gravity and falling due to the sliding of the support column when climbing.

[0018] 3. In the present invention, the fastening ring is closed by the insertion strip and the fixing block, so that the two ends of the broken cable are fixed, and then the transmission shaft is driven to rotate by the bidirectional motor B. When the transmission shaft rotates, it drives the gear C to rotate. When the gear C rotates, it drives the side rod to slide upward inside the side frame through the tooth groove, and the side rod drives the fixing plate to rise upward. When the fixing plate rises, it lifts the cable that needs maintenance through the fastening ring, thereby facilitating the adjustment of the height of the cable and avoiding the need for maintenance personnel to adjust the cable with the help of auxiliary tools when working at high altitudes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an overhead cable maintenance device for power maintenance of the present invention; Figure 2 A longitudinal cross-sectional view of an overhead cable maintenance device for power maintenance of the present invention; Figure 3 It is a schematic diagram of the explosion structure of the guardrail B, baffle and cover plate in an overhead cable maintenance device for power maintenance of the present invention; Figure 4 The present invention is a kind of overhead cable maintenance equipment for power maintenance Figure 3 The enlarged view of point A in the middle; Figure 5 The present invention is a kind of overhead cable maintenance equipment for power maintenance Figure 3 The enlarged view of point B in the middle; Figure 6 It is a schematic diagram of the explosion structure of the clamp block A, the clamp block B, the clamp block C and the clamp block D in the overhead cable maintenance equipment for power maintenance of the present invention; Figure 7 The present invention is a kind of overhead cable maintenance equipment for power maintenance Figure 6 Enlarged view of point C in the middle; Figure 8 It is a schematic diagram of the explosion structure of the bidirectional motor B and the support rod in an overhead cable maintenance device for power maintenance of the present invention; Fig. 9 The present invention is a kind of overhead cable maintenance equipment for power maintenance Figure 8 The enlarged view of point D in the middle; Fig.10 The present invention is a kind of overhead cable maintenance equipment for power maintenance Figure 8 Enlarged view of point E in the middle.

[0020] In the figure: 1. Support column; 2. Side panel A; 3. Pedal; 4. Handle; 5. Guardrail A; 6. Motor A; 7. Screw rod A; 8. Limiting groove; 9. Lifting rod; 10. Roller; 11. Side panel B; 12. Footrest groove; 13. Guardrail B; 14. Workbench; 15. Guardrail C; 16. Baffle; 17. Rotating shaft A; 18. Torsion spring A; 19. Cover plate; 20. Observation hole; 21. Push handle; 22. Rotating shaft B; 23. Torsion spring B; 24. Through hole; 101. Bidirectional screw rod B ; 102, rotating block; 103, turning handle; 104, clamping block A; 105, clamping block B; 106, gear A; 107, tooth chain; 108, gear B; 109, bidirectional screw C; 110, clamping block C; 111, clamping block D; 201, bidirectional motor B; 202, transmission shaft; 203, gear C; 204, side frame; 205, side rod; 206, tooth groove; 207, fixing plate; 208, slide groove; 209, tightening ring; 210, insert; 211, fixing block. DETAILED DESCRIPTION

[0021] 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 implementation regulations described 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.

[0022] Example 1: Reference Figure 1-5As shown: an overhead cable maintenance device for power maintenance, comprising a support column 1, a side panel A2 is fixedly installed on the side of the support column 1, a guardrail A5 is fixedly installed on the surface of the side panel A2, a motor A6 is fixedly installed inside the support column 1, a screw rod A7 is installed on the output end of the motor A6, a limiting groove 8 is provided inside the support column 1, a lifting rod 9 is slidably connected inside the support column 1, a side panel B11 is fixedly installed on the side of the lifting rod 9, and a guardrail B13 is fixedly installed on the surface of the side panel B11, A workbench 14 is fixedly mounted on the top of the lifting rod 9, a guardrail C15 is fixedly mounted on the top surface of the workbench 14, a baffle 16 is arranged on the inner surface of the guardrail B13, a rotating shaft A17 is fixedly mounted on the side of the baffle 16, a through hole 24 is penetrated through the top surface of the workbench 14, a cover plate 19 is arranged on the top surface of the through hole 24, a rotating shaft B22 is fixedly mounted on the side of the cover plate 19, a pedal 3 is fixedly mounted on the surface of the side plate A2, a handle 4 is fixedly mounted on the surface of the pedal 3, and a side of the lifting rod 9 is fixedly mounted. A roller 10 is fixedly installed, a pedal groove 12 is opened on the surface of the side plate B11, a torsion spring A18 is sleeved on the surface of the rotating shaft A17, a torsion spring B23 is sleeved on the surface of the rotating shaft B22, a push handle 21 is fixedly installed on the bottom surface of the cover plate 19, one end of the torsion spring A18 is connected to the side of the baffle 16, and the other end is connected to the inner surface of the guardrail B13, one end of the torsion spring B23 is connected to the side of the cover plate 19, and the other end is connected to the inner surface of the workbench 14, and the screw rod A7 is rotatably connected to the support column 1 The lifting rod 9 is connected to the screw rod A7 by a threaded connection, the roller 10 is rollingly connected to the limit groove 8, the sides of the guardrail A5 and the guardrail B13 are penetrated with an observation hole 20, the side panel B11 is slidingly connected to the side panel A2, the rotating shaft A17 is rotationally connected to the guardrail B13, the rotating shaft B22 is rotationally connected to the workbench 14, the number of baffles 16 is four groups, the four groups of baffles 16 are evenly distributed inside the guardrail B13, and the guardrail B13 is slidingly connected to the guardrail A5.

[0023] In this embodiment, the motor A6 drives the screw rod A7 to rotate. When the screw rod A7 rotates, it drives the lifting rod 9 to slide upward inside the support column 1, and the lifting rod 9 drives the roller 10 to roll in the limiting groove 8, and also drives the side panel B11 to rise from the side panel A2, thereby driving the guardrail B13 to slide upward from the surface of the guardrail A5 through the side panel B11. After the lifting rod 9 drives the workbench 14 to rise, the maintenance personnel can climb onto the workbench 14 through the pedal 3 and the foot groove 12. During the climbing process, the staff can open the guardrail B13 by toggling the baffle 16, and the guardrail A5 and the guardrail B13 will also protect the maintenance personnel. After the maintenance personnel climb to the top of the baffle 16, the baffle 16 will be rotated by the torsion of the torsion spring A18, thereby closing the guardrail B13 through the baffle 16, thereby preventing the maintenance personnel from falling due to foot slipping when climbing the workbench 14.

[0024] Embodiment 2: Figure 6-7 As shown, the support column 1 is internally rotatably connected with a bidirectional screw rod B101, one end of the bidirectional screw rod B101 is fixedly installed with a gear A106, and the other end is fixedly installed with a rotating block 102, the rotating block 102 is internally slidably connected with a rotating handle 103, the support column 1 is internally slidably connected with a clamping block A104 and a clamping block B105, the support column 1 is internally rotatably connected with a gear B108, the surface of the gear B108 is fixedly installed with a bidirectional screw rod C109, and the support column 1 is internally slidably connected with a clamping block C11 0 and clamp block D111, the surfaces of gear A106 and gear B108 are sleeved with a tooth chain 107, the rotating block 102 and gear A106 are both rotatably connected to the support column 1, the bidirectional lead screw B101 is threadedly connected to the clamp block A104 and the clamp block B105, the bidirectional lead screw C109 is threadedly connected to the clamp block C110 and the clamp block D111, the gear A106 and gear B108 are both meshed with the tooth chain 107, and the bidirectional lead screw B101 is rotatably connected to the support column 1.

[0025] In this embodiment, by rotating the rotating block 102, the rotating block 102 will drive the two-way screw rod B101 to rotate when rotating, and the two-way screw rod B101 will drive the clamping block A104 and the clamping block B105 to slide inside the support column 1 when rotating, and will also drive the gear A106 to rotate. When the gear A106 rotates, it will drive the gear B108 to rotate through the tooth chain 107, and the gear B108 will drive the two-way screw rod C109 to rotate, and the two-way screw rod C109 will drive the clamping block C110 and the clamping block D111 to slide inside the support column 1, so that the cable support rod is clamped by the clamping block A104, the clamping block B105, the clamping block C110 and the clamping block D111, thereby achieving the effect of limiting and fixing the support column 1, preventing the maintenance personnel from losing their center of gravity and falling due to the sliding of the support column 1 when climbing.

[0026] Embodiment 3: According to Figure 8-10 As shown, a bidirectional motor B201 is fixedly installed inside the workbench 14, a transmission shaft 202 is installed at the output end of the bidirectional motor B201, a gear C203 is fixedly installed at one end of the transmission shaft 202, side frames 204 are installed on both sides of the workbench 14, side rods 205 are slidably connected inside the side frames 204, tooth grooves 206 are provided on the surface of the side rods 205, a fixing plate 207 is fixedly installed at the bottom end of the side rods 205, a slide groove 208 is provided on the surface of the fixing plate 207, a fastening ring 209 is slidably connected inside the slide groove 208, an insert 210 is inserted inside the fastening ring 209, a fixing block 211 is rotatably connected to the top surface of the fastening ring 209, the gear C203 is rotatably connected to the side frame 204, the gear C203 is meshed with the tooth groove 206, and the insert 210 is threadedly connected to the fixing block 211.

[0027] In this embodiment, the fastening ring 209 is closed by the insertion strip 210 and the fixing block 211, so as to fix the two ends of the broken cable, and then the transmission shaft 202 is driven to rotate by the bidirectional motor B201. When the transmission shaft 202 rotates, it will drive the gear C203 to rotate. When the gear C203 rotates, it will drive the side rod 205 to slide upward inside the side frame 204 through the tooth groove 206, and the side rod 205 will drive the fixing plate 207 to rise upward. When the fixing plate 207 is raised, it will lift the cable that needs maintenance through the fastening ring 209, thereby facilitating the adjustment of the height of the cable and avoiding the situation where the maintenance personnel need to use auxiliary tools to adjust the cable when working at high altitude.

[0028] The use method and working principle of the device: When the workbench 14 needs to be raised or lowered, the motor A6 only needs to be turned on, and the motor A6 will drive the screw rod A7 to rotate. When the screw rod A7 rotates, it will drive the lifting rod 9 to slide upward inside the support column 1, and the lifting rod 9 will drive the roller 10 to roll in the limit groove 8, and at the same time, it will drive the side plate B11 to rise from the side plate A2, thereby driving the guardrail B13 to slide upward from the surface of the guardrail A5 through the side plate B11. After the lifting rod 9 drives the workbench 14 to rise, the maintenance personnel can Climb up the workbench 14 through the pedal 3 and the footrest groove 12. During the climbing process, the staff can open the guardrail B13 by turning the baffle 16, and the guardrail A5 and the guardrail B13 will also protect the maintenance personnel. After the maintenance personnel climb to the top of the baffle 16, the baffle 16 will rotate under the torsion of the torsion spring A18, so that the guardrail B13 is closed through the baffle 16. At this time, the maintenance personnel can rotate the cover plate 19 by pushing the push handle 21. After the cover plate 19 is turned open, the maintenance personnel can climb onto the workbench 14 through the through hole 24; When the support column 1 needs to be fixed, the support column 1 only needs to be placed facing the cable support rod, and then the handle 103 is turned. The handle 103 will drive the bidirectional screw rod B101 to rotate through the rotating block 102. When the bidirectional screw rod B101 rotates, it will drive the clamping block A104 and the clamping block B105 to slide inside the support column 1, and will also drive the gear A106 to rotate. When the gear A106 rotates, it will drive the gear B108 to rotate through the toothed chain 107. The gear B108 will drive the bidirectional screw rod C109 to rotate. The bidirectional screw rod C109 will drive the clamping block C110 and the clamping block D111 to slide inside the support column 1, so that the cable support rod is clamped by the clamping block A104, the clamping block B105, the clamping block C110 and the clamping block D111. When the broken cable needs to be maintained, it is only necessary to close the fastening ring 209 through the insertion strip 210 and the fixing block 211 to fix the two ends of the broken cable, and then drive the transmission shaft 202 to rotate through the bidirectional motor B201. When the transmission shaft 202 rotates, it will drive the gear C203 to rotate. When the gear C203 rotates, it will drive the side rod 205 to slide upward inside the side frame 204 through the tooth groove 206, and the side rod 205 will drive the fixing plate 207 to rise upward. When the fixing plate 207 rises, it will lift the cable that needs maintenance through the fastening ring 209.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An overhead cable maintenance device for power maintenance, comprising a support column (1), characterized in that: A side plate A (2) is fixedly mounted on the side of the support column (1), a guardrail A (5) is fixedly mounted on the surface of the side plate A (2), a motor A (6) is fixedly mounted inside the support column (1), a screw rod A (7) is mounted on the output end of the motor A (6), a limiting groove (8) is provided inside the support column (1), a lifting rod (9) is slidably connected inside the support column (1), a side plate B (11) is fixedly mounted on the side of the lifting rod (9), and a surface of the side plate B (11) is fixedly mounted. A guardrail B (13) is provided, a workbench (14) is fixedly installed on the top of the lifting rod (9), a guardrail C (15) is fixedly installed on the top surface of the workbench (14), a baffle (16) is provided on the inner surface of the guardrail B (13), a rotating shaft A (17) is fixedly installed on the side of the baffle (16), a through hole (24) is penetrated through the top surface of the workbench (14), a cover plate (19) is provided on the top surface of the through hole (24), and a rotating shaft B (22) is fixedly installed on the side of the cover plate (19).

2. The overhead cable maintenance equipment for power maintenance according to claim 1, characterized in that: A pedal (3) is fixedly mounted on the surface of the side panel A (2), a handle (4) is fixedly mounted on the surface of the pedal (3), a roller (10) is fixedly mounted on the side of the lifting rod (9), a pedal groove (12) is provided on the surface of the side panel B (11), a torsion spring A (18) is sleeved on the surface of the rotating shaft A (17), a torsion spring B (23) is sleeved on the surface of the rotating shaft B (22), and a push handle (21) is fixedly mounted on the bottom surface of the cover plate (19).

3. The overhead cable maintenance equipment for power maintenance according to claim 2, characterized in that: One end of the torsion spring A (18) is connected to the side of the baffle (16), and the other end is connected to the inner surface of the guardrail B (13); one end of the torsion spring B (23) is connected to the side of the cover plate (19), and the other end is connected to the inner surface of the workbench (14); the screw rod A (7) is rotationally connected to the support column (1); the lifting rod (9) is threadedly connected to the screw rod A (7); the roller (10) is rollingly connected to the limit groove (8); and observation holes (20) are provided through the sides of the guardrail A (5) and the guardrail B (13).

4. The overhead cable maintenance equipment for power maintenance according to claim 2, characterized in that: The side plate B (11) is slidably connected to the side plate A (2), the rotating shaft A (17) is rotationally connected to the guardrail B (13), and the rotating shaft B (22) is rotationally connected to the workbench (14).

5. The overhead cable maintenance equipment for power maintenance according to claim 2, characterized in that: The number of the baffles (16) is four groups, and the four groups of baffles (16) are evenly distributed inside the guardrail B (13), and the guardrail B (13) is slidably connected to the guardrail A (5).

6. The overhead cable maintenance equipment for power maintenance according to claim 2, characterized in that: The support column (1) is internally rotatably connected to a bidirectional screw rod B (101); one end of the bidirectional screw rod B (101) is fixedly mounted with a gear A (106); the other end of the bidirectional screw rod B (101) is fixedly mounted with a rotating block (102); the rotating block (102) is internally slidably connected to a rotating handle (103); the support column (1) is internally slidably connected with a clamping block A (104) and a clamping block B (105); the support column (1) is internally rotatably connected with a gear B (108); a bidirectional screw rod C (109) is fixedly mounted on the surface of the gear B (108); a clamping block C (110) and a clamping block D (111) are internally slidably connected with the support column (1); and a toothed chain (107) is sleeved on the surfaces of the gear A (106) and the gear B (108).

7. The overhead cable maintenance equipment for power maintenance according to claim 6, characterized in that: The rotating block (102) and the gear A (106) are both rotatably connected to the support column (1), the bidirectional screw rod B (101) is connected to the clamping block A (104) and the clamping block B (105) via threads, and the bidirectional screw rod C (109) is connected to the clamping block C (110) and the clamping block D (111) via threads.

8. The overhead cable maintenance equipment for power maintenance according to claim 6, characterized in that: The gear A (106) and the gear B (108) are both meshed with the toothed chain (107), and the bidirectional screw rod B (101) is rotationally connected to the support column (1).

9. The overhead cable maintenance equipment for power maintenance according to claim 2, characterized in that: A bidirectional motor B (201) is fixedly installed inside the workbench (14), a transmission shaft (202) is installed at the output end of the bidirectional motor B (201), a gear C (203) is fixedly installed at one end of the transmission shaft (202), side frames (204) are installed on both sides of the workbench (14), side rods (205) are slidably connected inside the side frames (204), tooth grooves (206) are provided on the surface of the side rods (205), a fixing plate (207) is fixedly installed at the bottom end of the side rods (205), a sliding groove (208) is provided on the surface of the fixing plate (207), a fastening ring (209) is slidably connected inside the sliding groove (208), an inserting strip (210) is inserted inside the fastening ring (209), and a fixing block (211) is rotatably connected to the top surface of the fastening ring (209).

10. The overhead cable maintenance equipment for power maintenance according to claim 9, characterized in that: The gear C (203) is rotationally connected to the side frame (204), the gear C (203) is meshed with the tooth groove (206), and the inserting strip (210) is threadedly connected to the fixing block (211).

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