Safety equipment for preventing accidental fall during high-altitude operation

Abstract

The invention relates to a speed difference controller with a free contraction function. One end of an internal coil spring is fixed to a shell of the speed difference controller, and the other end of the internal coil spring is connected with a rotating shaft of a core. During normal use, a fall protection safety rope is pulled out, and the coil spring is contracted; after loads are released, a rope winding wheel is driven by the rotating shaft so as to wind the safety rope under the action of elasticity of the coil spring, so that the free contraction function is realized. The speed difference controller further has a speed difference locking function. In the condition of fall due to slipping, the fall protection safety rope is quickly pulled out, so that the rotating shaft and a rotating mechanism are driven to quickly rotate by the rope winding wheel, and under the action of centrifugal force, a pawl overcomes the tension of a tension spring so as to be opened and then is locked and jammed with a wheel disc, so that the speed difference locking function is realized. The speed difference controller further has an anti-impact function. When the pawl is opened and locked after fall due to slipping, the rotating mechanism rotates relative to the rotating shaft under the action of axial force of a friction plate, so that buffer force is provided for a falling person, death caused by excessive pulling force after locking is prevented, and the anti-impact effect is achieved.

Description

technical field [0001] The invention relates to the technical field of anti-fall equipment, in particular to a safety equipment for preventing accidental fall when working at heights. Background technique [0002] At present, high-altitude operations are involved in engineering construction, electric power, ships, communications, bridges and other fields, and falling from high altitudes not only endangers the lives of staff, but also greatly affects the work efficiency of enterprises. [0003] The traditional safety anti-fall equipment needs to constantly replace the anchor point, which greatly affects the work efficiency. The present invention is a kind of safety equipment for people working at heights to prevent accidental falls, which not only avoids the drawbacks of constantly changing anchor points during work, but also ensures the maximum pulling force when people or objects fall accidentally , so as to avoid accidental injury and greatly improve work efficiency. Co...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a safety device for people working at heights to prevent accidental falls, so as to solve the casualties and damages caused by accidental falls in the fields of existing engineering construction, electric power, ships, communications, bridges, etc. inefficiency etc.

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