Insulating hanging frame for live working

Abstract

The invention relates to an insulating hanging frame for live working. The insulating hanging frame comprises two pulley brackets and a pulley hook, wherein the pulley hook comprises a font plate, a rear plate, a connecting plate and a first pulley mechanism; the first pulley mechanism comprises a pull rope pulley, a first bearing and a first bearing mounting structure; the first bearing mountingstructure comprises a first bearing containing cavity and a first compressed spring; the lower end of the first compressed spring and an outer ring of the first bearing are fixed and are used for connecting the first bearing; first guide seams are arranged at left and right sides of the first bearing containing cavity; a first rotation stopping groove is formed in the upper part of each first guide seam; a first rotation stopping part, which is matched with the first rotation stopping groove, is arranged at a position, corresponding to the first rotation stopping groove, of a pull rope pulleyshaft. The insulating hanging frame for the live working, provided by the invention, has the beneficial effects that the compressed spring with suitable length and elastic force is selected accordingto requirements; the pull rope pulley, lapped on a cable, of the pulley hook stops rotating and the position of the pull rope pulley does not move any more, so that a ladder head can be conveniently pulled to the needed cable position.

Description

technical field [0001] The invention belongs to the field of electric equipment, in particular to an insulating hanger for live work. Background technique [0002] Chinese patent document ZL201320806144.7 discloses an insulating hanger for live work, including a ladder head and a soft ladder. At both ends of the fixed cross bar, the movable cross bar is located under the fixed cross bar, and the two ends of the fixed cross bar are respectively set on two pulley brackets. The movable cross bar is connected with the fixed cross bar through a spring, and the pulley hook is located on the fixed cross bar. Above, one end of the stay rope is fixed in the center of the movable cross bar, and the other end of the stay rope passes through the fixed cross bar and the pulley hook successively, and the stay rope can drive the movable cross bar to move. The top of the pulley bracket is provided with a cable pulley, and the bottom of the cable pulley is provided with a self-locking part....

AI Technical Summary

Problems solved by technology

[0004] Second, in the process of hanging the ladder head to the cable through the pulley hook, due to the adjustment of the ladder head posture and the force generated by the pull, the slope generated by the cable itself sags, resulting in the pulley hook being unable to position on the cable, often waiting for the ladder When the head reaches the position of the cable, it is not the desired position, and it needs to be adjusted continuously, which is very time-consuming and laborious, which greatly affects the work efficiency

[0006] Third, the process of hanging the ladder head on the cable is very difficult. The reason is that in actual operation, it is very difficult to fix the pull rope just in the middle of the movable cross bar, which makes the ladder head easy to tilt left and right. In the absence of a suitable fixed structure in the front and rear directions, the ladder head is prone to pitching and swinging. During the lifting process, the ladder head will rotate under the action of the torque release of the pull rope itself, resulting in the ladder head not being able to rise to the expected position at all. At the cable, even if you are lucky enough to reach the bottom of the cable, but because the connecting rod above the cable pulley is set horizontally, the result is that the connecting rod withstands the cable and cannot continue to rise

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