Double-eccentric-shaft anti-falling lock

Abstract

The invention discloses a double-eccentric-shaft anti-falling lock which comprises a mounting frame (1), a rear positioning plate (25) and a front positioning plate (27), wherein the rear positioning plate (25) and the front positioning plate (27) are riveted and positioned through four positioning pins (20); the left upper ends of the rear positioning plate (25) and the front positioning plate (27) are hinged to the mounting frame (1) through positioning shafts (19); and the right lower ends of the rear positioning plate (25) and the front positioning plate (27) are hinged with the mounting frame (1) through buffering structures. The double-eccentric-shaft anti-falling lock is characterized in that a U-shaped plate part (3) and a locking plate part (2) are arranged between the rear positioning plate (25) and the front positioning plate (27), are provided with similarly half smooth through slots matched with the outer diameter of a safety rope (16) and double-eccentric-hole structures matched with a motion mechanism of two eccentric shafts (22) respectively, and are connected with a rocker plate I (11) and a rocker plate II (13) through the two eccentric shafts (22). The double-eccentric-shaft anti-falling lock has a simple structure and is high in safety, and relatively high in buffering capacity.

Description

technical field [0001] The invention relates to a safety device for hoisting equipment, in particular to a rope-broken anti-fall lock, in particular to a double eccentric shaft anti-fall lock. Background technique [0002] As we all know, the anti-drop lock is a commonly used safety protection device for lifting and lifting mechanical equipment. It is a safety device that must be installed in high-altitude lifting and lifting mechanical equipment such as hanging baskets, hoists, and elevators. Through the function of the anti-fall lock, it can prevent the occurrence of high-altitude falling accidents caused by excessive wear and tear of the main rope. As far as the applicant knows, the locking mechanisms of broken rope anti-fall locks currently on the market mainly include wedge type and safety clamp type. The mechanism and corresponding protective measures will cause a certain degree of destructive damage to the entire lifting equipment, safety wire rope and operators. It...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing broken rope safety lock lacks a buffer mechanism, which is easy to cause impact damage to equipment and personnel, and moreover, it is easy to cause damage to the safety wire rope when locking, and to design a simple structure. Reliable double eccentric shaft anti-drop lock

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