Power transmission line maintenance ladder stand

A technology for transmission lines and ladders, applied in the direction of overhead lines/cable equipment, etc., can solve the problems of high labor and physical consumption of maintenance operators, low operation safety factor, inconvenient use and portability, etc., and achieves safe operation of efficient transmission lines. Work risk, the effect of simple structure

Pending Publication Date: 2022-01-21
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The replacement of insulators on straight towers of transmission lines requires maintenance personnel to go down from the cross arm of the tower to the position of the conductor. At present, the commonly used tools for lowering conductors are mainly hard ladders and soft ladders. The special fixing component is inconvenient to use and carry, and it is easy to shake during the operation process; when the soft ladder is used to take out the insulator for maintenance, the lower end cannot be fixed, the ground needs to be controlled by manpower, and the soft ladder swings back and forth, the operation safety factor is not high, and the labor and physical exertion of the maintenance workers is greater

Method used

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  • Power transmission line maintenance ladder stand
  • Power transmission line maintenance ladder stand
  • Power transmission line maintenance ladder stand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as Figure 1 to Figure 4As shown, this embodiment provides a power transmission line maintenance ladder, including a first ladder body 100, a second ladder body 200, a folding lock assembly 300 and a hook assembly 400, wherein one end of the folding lock assembly 300 is connected to the first One end of the ladder body 100 is connected, and the other end of the folding lock assembly 300 is connected with one end of the second ladder body 200. The hook assembly 400 includes a hook body 401, a hook positioning piece 402 and a hook lock 403. One end of the hook body 401 is connected to the second ladder body 200. A ladder body 100 is connected to one end away from the folding lock assembly 300, and the hook body 401 can swing to a desired angle relative to the first ladder body 100. One end of the hook positioning piece 402 is connected to the hook body 401, and one end of the hook lock 403 is connected to the hook body 401. The hook body 401 is rotatably connected aw...

Embodiment 2

[0045] This embodiment provides a power transmission line maintenance ladder. The difference between it and Embodiment 1 is that a first guide rail 1011 is provided on the side of the first vertical beam 101 facing away from the first cross beam 102 in this embodiment, and the second vertical beam The side of 201 facing away from the second beam 202 is provided with a second guide rail 2011 , the first guide rail 1011 can communicate with the second guide rail 2011 , and the slider can slide in the first guide rail 1011 and the second guide rail 2011 . By setting the first guide rail 1011 and the second guide rail 2011, when in use, the maintenance personnel are fastened to the slider by a rope, which can further ensure the safety of the maintenance personnel, and the hook on the hanging position can be stuck on the first guide rail 1011 And in the second guide rail 2011, further reducing the risk of falling of the transmission line maintenance ladder.

[0046] Other structure...

Embodiment 3

[0048] This embodiment provides a power transmission line maintenance ladder, which is different from Embodiment 1 in that a first rubber pad 407 is provided on the side of the hook body 401 close to the hook lock 403 , and the hook positioning piece 402 is close to the hook lock 403 One side is provided with a second rubber pad 408 . By arranging the first rubber pad 407 and the second rubber pad 408, the stability of the hook assembly 400 can be enhanced, the friction with the hanging position can be increased, the swing between the hook assembly 400 and the hanging position can be avoided, and insulation can also be played. Avoid the risk of electric shock for maintenance personnel.

[0049] Other structures of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

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PUM

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Abstract

The invention belongs to the technical field of power transmission line maintenance, and discloses a power transmission line maintenance ladder stand which comprises a first ladder stand body, a second ladder stand body, a folding lock catch assembly and a hook assembly. One end of the folding lock catch assembly is connected with one end of the first ladder stand body, and the other end of the folding lock catch assembly is connected with one end of the second ladder stand body; the hook assembly comprises a hook body, a hook positioning piece and a hook locking piece. One end of the hook body is connected with the end, away from the folding lock catch assembly, of the first ladder stand body, the hook body can swing to the needed angle relative to the first ladder stand body, and one end of the hook positioning piece is connected with the hook body. One end of the hook locking piece is rotationally connected with the end, away from the first ladder stand body, of the hook body, the other end of the hook locking piece can be locked with the end, away from the hook body, of the hook positioning piece, and the hook body, the hook positioning piece and the hook locking piece can form a closed space. The power transmission line maintenance crawling ladder is high in safety coefficient and convenient to use.

Description

technical field [0001] The invention relates to the technical field of transmission line maintenance, in particular to a power transmission line maintenance ladder. Background technique [0002] In high-voltage transmission lines, silicone rubber composite insulators have been widely used in the field of high-voltage transmission due to their small size, light weight, good hydrophobicity, and superior electrical performance. However, the surface composite material of silicone rubber composite insulator is soft, easy to scratch and easy to damage. Once damaged, if it is not repaired in time, it will seriously affect the safe operation of transmission lines. [0003] Measures should be taken to prevent tools from colliding with organic composite insulator sheaths when installing accessories for transmission lines, and it is strictly forbidden to step on the upper and lower leads of organic composite insulators during installation. It can be seen that the maintenance of compos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02
CPCH02G1/02
Inventor 李泓骏王绍雄陈征海温锐兴刘光艳黄永洪李伟文陈凯凌文杰罗敏辉
Owner GUANGDONG POWER GRID CO LTD
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