Hard insulating ladder used for high-altitude live-wire work

Abstract

The invention discloses a hard insulating ladder used for high-altitude live-wire work. The hard insulating ladder comprises an insulating flexible ladder head with a locking function and a folding ladder connected with the insulating flexible ladder head, wherein the insulating flexible ladder head with the locking function comprises a left bracket, a right bracket and at least two parallel transverse beams for connecting the left bracket and the right bracket, and the upper ends of the left bracket and the right bracket are provided with U-shaped installing heads. An upper pulley and a lowerpulley which are parallelly arranged up and down are installed in each installing head, wherein each upper pulley is used for penetrating through an insulating rope, each lower pulley is supported ona guide wire, a locking sheet is hinged to one side of an opening part of each installing head and is matched with the corresponding pulley to clamp the corresponding guide wire, the folding ladder comprises at least two ladder body segments, and every two adjacent ladder body segments are locked and fixed through a locking assembly. By means of the hard insulating ladder, the insulating flexibleladder head can be tightly fixed to the guide wires to avoid the situation that the insulating flexible ladder head slides due to inclination of the guide wires, convenience is brought for a worker to complete the operation, and the technical problems in live-wire replacement of an insulator and supporting fittings thereof is solved.

Description

technical field [0001] The invention relates to the technical field of electric power engineering, in particular to an insulation ladder used for high-altitude live work, and is mainly suitable for live replacement of insulators, fittings and the like on old lines of power transmission lines. Background technique [0002] In the current transmission line maintenance process, when carrying out live maintenance and replacement of 35-500kV overhead transmission lines, the commonly used tool is the traditional insulated soft ladder, which is often limited by its length when working, and the soft ladder shakes seriously when the operator is climbing. , there are dangers such as falling of the ladder and falling of the operator, and it is difficult to replace the insulator and its supporting fittings with power on, and the safety risk is great. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a rigid insulating ladder f...

AI Technical Summary

Problems solved by technology

[0002] In the current transmission line maintenance process, when carrying out live maintenance and replacement of 35-500kV overhead transmission lines, the commonly used tool is the traditional insulated soft ladder, which is often limited by its length when working, and the soft ladder shakes seriously when the operator is climbing. , there are dangers such as the falling of the ladder and the falling of the operator. It is difficult to replace the insulator and its supporting fittings with power on, and the safety risk is great.

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