Elevator destroke function safety circuit

Abstract

The invention relates to an elevator destroke function safety circuit, and belongs to the technical field of elevator safety. The safety circuit comprises a position monitoring circuit, a speed monitoring circuit, a logical judging circuit, a destroke action feedback circuit, an adhesion feedback circuit and a destroke action protection circuit; the position monitoring circuit, the speed monitoring circuit and the logical judging circuit are connected with the destroke action protection circuit; the destroke action feedback circuit is connected with the position monitoring circuit and the speed monitoring circuit; and the adhesion feedback circuit is connected with the logical judging circuit. The safety circuit has the advantages that the phenomenon that an elevator is topped or bottomedunder abnormal stopping conditions can be avoided, and the stability and safety of the elevator are improved.

Description

technical field [0001] The invention belongs to the technical field of elevator safety, and in particular relates to an elevator stroke reduction functional safety circuit. Background technique [0002] The rapid growth of my country's economic construction has brought unprecedented opportunities to the elevator industry. As an important type of elevator, the oblique passenger elevator can realize the free connection of any two points in the three-dimensional space. For example, for large-scale transfer stations of rail transit (subway, high-speed rail, etc.) with complex structures, it can solve transportation problems under complex conditions and improve the efficiency of passenger diversion. Due to its good safety, high reliability, large load capacity, low failure rate and low noise, oblique passenger elevators occupy a relatively high market share in the entire elevator market, especially in developed regions in Europe and America. With the continuous advancement of ur...

AI Technical Summary

Problems solved by technology

[0003] At present, the new type of oblique passenger elevator (hereafter referred to as "diagonal elevator") is just in its infancy in China, and there are very few manufacturers capable of designing and producing it. Instability, relatively complex structure and other reasons have brought many problems

Especially when the inclined elevator adopts the front door structure, when the car runs to the leveling position of the upper and lower ends, the stroke of the buffer is basically completely compressed by the car, and at this time the limit and limit switches still do not operate normally. , it is easy to cause the elevator to rush to the top or squat to the bottom when it stops abnormally

Images