Three-point fixed distribution network maintenance hanging ladder

Abstract

The invention relates to a three-point-fixed type hanging ladder for distribution network maintenance. The three-point-fixed type hanging ladder comprises a hanging ladder body and is characterized in that a vertical rod II is arranged between two vertical rods I, and a slideway is arranged in the vertical rod II; a slider, a chain, a chain wheel I and a chain wheel II are arranged in the slideway, and a hook II is arranged on the slider; a groove is formed in the front end of the hook II, a retaining plate is vertically arranged in the groove, the bottom of the retaining plate is hinged to the front end of the groove, and a torsional spring is arranged at the hinged part; a cavity is arranged in the slider, a sphere in the cavity is connected with one end of the torsional spring, and the other end of the torsional spring is connected with one end of the cavity; one end of the sphere is connected with a pull rope, and the other end of the pull rope is connected with the front end of the retaining plate; one end of a chain penetrate the cavity to be connected with the sphere, and the other end of the chain is connected with the slider; a rocker connecting end is arranged on the chain wheel I, and a rocker is connected with the rocker connecting end in a matched manner. The three-point-fixed type hanging ladder has the advantages that shaking and sliding of the hanging ladder are reduced to the maximum extent, and a stable, firm and safe operation platform is provided for operators.

Description

technical field [0001] The invention relates to a three-point fixed distribution network maintenance hanging ladder. Background technique [0002] The hanging ladder is a commonly used tool in the maintenance of the distribution network. The current hanging ladder is equipped with a hook at the front end of the hanging ladder body, which is used to hang on the cross arm of the tower pole or the cable, and the lower end of the hanging ladder body is directly connected to the line. . With this fixing method, the hanging ladder shakes severely and is prone to slipping. Although the hanging ladder rarely falls off, the shaking hanging ladder increases the difficulty of the operation and the fear in the hearts of the operators. [0003] Because the lower end of the hanging ladder is directly lapped on the cable, it is difficult for the operator to fix it by hand, and it is also ineffective to arrange a general hook at the lower end of the hanging ladder. Therefore, designing a ...

AI Technical Summary

Problems solved by technology

With this fixing method, the hanging ladder shakes severely and is prone to slipping. Although the hanging ladder rarely falls off, the shaking hanging ladder increases the difficulty of the operation and the fear in the operator's heart.

[0003] Since the lower end of the hanging ladder is directly lapped on the cable, it is difficult for the operator to fix it by hand, and setting a general hook at the lower end of the hanging ladder does not work

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