Pulley insulating board ladder

Abstract

The invention relates to the technical field of an insulating board ladder, and in particular relates to a pulley insulating board ladder, which is mainly used for equal potential working on overhead transmission lines with the voltage class (66kV and above). The pulley insulating board ladder comprises pulleys, supports and a ladder, wherein, the supports are fixedly connected with a base plate,and two supports at each side are connected together through a connecting rod; the pulleys are respectively arranged on two ends of each shaft, two ends of each shaft are respectively connected on two opposite supports, and the upper and lower parts of each support are respectively connected with two shafts; and the ladder is clamped in the middle of an upper pulley block and a lower pulley block. The pulley insulating board ladder has the advantages that up-down vibration of the insulating board ladder can be fully eliminated so as to stabilize the gravity center of an operator, insulating the combined gap during the process of entry and exit from a strong electric field is increased to 45cm-50cm, and damage of a hanger of the insulating board ladder on a lead is reduced, thus achieving stronger practicability and obviously improving safety of the operator during the potential working process; and the pulley insulating board ladder is mainly applicable to equal potential working on the overhead transmission lines with the voltage class (66kV and above).

Description

technical field [0001] The invention relates to the technical field of insulating board ladders, in particular to a pulley-type insulating board ladder, which is mainly used for equipotential work on overhead power transmission lines at voltage levels of 66kV and above. Background technique [0002] At present, traditional insulated ladders are generally used for equipotential operations on overhead transmission lines with voltage levels of 66kV and above, that is, operators use simple ladders made of insulating material epoxy resin to move to strong electric fields. However, due to the movement of the workers on the ladder, the insulation combination gap will be reduced, the up and down vibration of the insulation board ladder will reduce the mechanical strength of the insulation board ladder, and the workers will easily lose their center of gravity, resulting in a series of accidents and problems such as falling from high altitude and wire damage. . Contents of the inven...

AI Technical Summary

Problems solved by technology

However, due to the movement of the workers on the ladder, the insulation combination gap will be reduced, the up and down vibration of the insulation board ladder will reduce the mechanical strength of the insulation board ladder, and the workers will easily lose their center of gravity, resulting in a series of accidents and problems such as falling from high altitude and wire damage.

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