Internal-control type self-locking ladder head

Abstract

The invention discloses an internal-control type self-locking ladder head, comprising a left vertical rod (8) and a right vertical rod (9). The left vertical rod (8) and the right vertical rod (9) are provided with pulleys (1), buckles, tackle hanging holes (3), and bottom end hanging holes (10) in pairs from top to bottom. A moving rod (6) and a fixing rod (7) whose two ends respectively connect with the left vertical rod (8) and the right vertical rod (9) are arranged between the tackle hanging holes (3) and the bottom end hanging holes (10). A rope hook is connected on the moving rod (6). The tackle hanging hole (3) is provided with a self-locking lock plate (2). The tail end of the self-locking lock plate (2) is hinged with a transmission rod (4). The tail end of the transmission rod (4) is connected with the moving rod (6). The moving rod (6) and the fixing rod (7) are connected through a spring (11). The internal-control type self-locking ladder head solves problems that a ladder head cannot automatically realize on-off of insurance when a worker climbs up and down the ladder head in hot-line work, and reduces work risks, optimizes work process, and protects safety of work personnel in whole process.

Description

technical field [0001] The invention relates to a device for live work, in particular to a hanging ladder ladder used for replacing insulators at equal potentials, repairing ground wires, etc. during live work on power transmission lines. Background technique [0002] In the equipotential live work, the operator enters the equipotential by climbing the soft ladder is one of the commonly used working methods in the live work. During the operation, the wire needs to be hung into the opening of the ladder head first. After the ladder head is hung, wait for the equipotential work. The safety device can only be closed manually after the personnel enter the equipotential (when the operator climbs up the ladder head). This operation process (closing the safety device) cannot be realized during the process of the operator going up and down the soft ladder, resulting in insufficient safety protection for the climbing operator, which is easy to Risk of accidental falling. In view of ...

AI Technical Summary

Problems solved by technology

[0002] In the equipotential live work, the operator enters the equipotential by climbing the soft ladder is one of the commonly used working methods in the live work. During the operation, the wire needs to be hung into the opening of the ladder head first. After the ladder head is hung, wait for the equipotential work. The safety device can only be closed manually after the personnel enter the equipotential (when the operator climbs up the ladder head). This operation process (closing the safety device) cannot be realized during the process of the operator going up and down the soft ladder, resulting in insufficient safety protection for the climbing operator, which is easy to Accidental Fall Hazard

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