Car elevator with single guide rail and double anti-fall

Abstract

The invention discloses a single-guiderail double-falling prevention lift car elevator which comprises two vertical beams disposed on two opposite sides of an elevator car, wherein each vertical beam has a slide rail form and is sleeved by a constantly fixed assembly and a constantly movable assembly, the constantly movable assembly is connected to a control device of the elevator car by a sliding motor, and the constantly movable assembly is disposed on the bottom of the elevator car and gets contacted with the elevator car by an extensible strut; a displacement sensor is also disposed at a joint between the extensible strut and the elevator car; and the constantly fixed assembly is disposed on the bottom of stairs of a building and comprises an emergency control device, an emergency motor and a sliding frame body, and the displacement sensor is electrically connected to the emergency control device of the constantly fixed assembly. The single-guiderail double-falling prevention lift car elevator disclosed by the invention has the advantages that the lift car elevator can make an emergency response more quickly when the elevator slides down; and an anti-falling device can be started in time to support the elevator car, so that safety performance of the lift car elevator can be enhanced.

Description

technical field [0001] The invention relates to the technical field of car-type elevator fall prevention, in particular to a car-type elevator with single guide rail and double fall prevention. Background technique [0002] Existing car-type elevators, anti-falling devices, in terms of hardware, speed limiters, safety gear, buffers, end station protection devices and the like. The speed limiter can reflect the actual running speed of the elevator. When the speed of the elevator exceeds the allowable value, it can send out electrical signals and generate mechanical actions to cut off the safety circuit or force the safety gear to act. It is installed in the machine room. The safety gear can be linked with the speed limiter to force the car to stop on the guide rail by mechanical action, and is installed on both sides of the car or counterweight. The buffer absorbs energy when the car or the counterweight hits the bottom pit to ensure the safe braking of the car. There are sp...

AI Technical Summary

Problems solved by technology

[0003] But above-mentioned safety device still can't accomplish fully place elevator to fall after using, and car type electronic still can occur potential safety hazard when using, traces it to its root cause is, the emergency response speed of existing car type elevator is relatively slow to cause of

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