Improved ladder head of rope ladder

Abstract

The invention relates to an improved ladder head of a rope ladder used during power maintenance. The improved ladder head consists of an upper pulley yoke, a lower pulley yoke, an upper pulley and a lower pulley, wherein the upper pulley and the lower pulley are arranged in the upper pulley yoke and the lower pulley yoke. The improved ladder head is characterized in that the upper pulley yoke and the lower pulley yoke are spliced, are identical in structure and respectively consist of two parallel upright poles and a flat plate connected to upper ends of the two upright poles; and the upper pulley yoke and the lower pulley yoke have a same frame shape formed in such a way that the lower end of an upper end part is open. A locking device is arranged at the open end part of the frame-shaped lower pulley yoke. The upper pulley or the lower pulley is arranged in the frame; and pulley grooves are formed in the circumferences of the upper pulley and the lower pulley. A screw is screwed at the middle of one flat plate; the lower end of the screw penetrates through the corresponding flat plate; and a stop block is movably connected to the lower end of the screw and is positioned in the pulley groove of the upper pulley or the lower pulley. According to the technical scheme, the improved ladder head disclosed by the invention can be firmly fixed on the circuit; meanwhile, hanging points of the rope ladder can be locked, so that the safety of operators is ensured; and in addition, the phenomenon that the ladder head of the rope ladder slides is effectively avoided and the operation danger is reduced.

Description

technical field [0001] The invention relates to an improved ladder head of a ladder used for climbing high-altitude lines during power maintenance. Background technique [0002] Through the use of the ladder head by the live class in recent years, it is found that the current ladder head will have the following problems in actual work: First, when the ladder is climbed, because the hanging point of the ladder head is in an open state, Therefore, there is insecurity, and the staff is always in a state of tension during the climbing process, so the climbing speed will be very slow. Since the line is not a straight line and has a certain arc, the ground personnel need 3-4 people to stabilize the ladder head to prevent it from falling off due to uneven force on the hanging point. Secondly, when the staff arrives at the head of the ladder and starts to work, in order to prevent the slide of the ladder, the staff also needs to bind the head of the ladder with a safety belt, whic...

AI Technical Summary

Problems solved by technology

[0002] Through the use of the ladder head by the live class in recent years, it is found that the current ladder head will have the following problems in actual work: First, when the ladder is climbed, because the hanging point of the ladder head is in an open state, Therefore, there is insecurity, and the staff is always in a state of tension during the climbing process, so the climbing speed will be very slow

Secondly, when the staff reaches the ladder head and starts working, in order to prevent the ladder from sliding, the staff also need to tie the ladder head with a safety belt, which again prolongs the working time and makes it inconvenient for the staff to move

Finally, when faced with vertical double-split conductors, since the current ladder head is only suitable for single conductor operations, the workload for double-split conductors is relatively large

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