Emergency self-rescue system applied after elevator failure

Abstract

The invention relates to an emergency self-rescue system applied after elevator failure. The emergency self-rescue system comprises an elevator control system disconnection branch circuit, an elevatorband-type brake release car rolling branch circuit and an elevator door opening branch circuit, wherein the elevator control system disconnection branch circuit, the elevator band-type brake releasecar rolling branch circuit and the elevator door opening branch circuit are connected in sequence. The elevator band-type brake release car rolling branch circuit comprises a control transformer, a voice prompt device, a lamplight prompt device, a brake release power source contactor, a tractor braking band-type brake, a brake release power source and an intra-lift-car brake release signal detection switch, wherein the intra-lift-car brake release signal detection switch appears in an elevator lift car. An electronic control panel is connected with an external power source through the controltransformer and further connected with the brake release power source contactor. The brake release power source contactor is connected with the tractor braking band-type brake. The tractor braking band-type brake is connected with a tractor. The brake release power source contactor is further connected with the brake release power source. The brake release power source is connected with the external power source through the control transformer. Compared with the prior art, by means of the elevator self-rescue system, the rescue time is shortened, the rescue cost is greatly lowered, and safetyperformance is high.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an emergency self-rescue system after an elevator fails. Background technique [0002] With the advancement of science and technology, the application of elevators is increasing day by day, but the accompanying safety problems also follow. The elevator failure of prior art mainly comes from three aspects: the one, safety loop failure, promptly bottom pit tensioner switch, car buffer switch, hedging buffer switch, upper and lower limit switch, overspeed switch, upper and lower overspeed switch, Misoperation of switches such as the safety gear switch or poor contact causes the elevator to be trapped; the second is the failure of the control power supply, that is, the fuse is poorly connected or broken, the rectifier bridge is burned, etc., causing the elevator to be trapped; people. Trapped people in the elevator will make the trapped people have a greater security threat. [...

AI Technical Summary

Problems solved by technology

The traditional rescue method has the defects that the distress signal cannot be sent to the elevator management department, the rescue time is long, the management cost is high, the rescue efficiency is low, and the safety risk of rescuers is high.

Therefore, the traditional foreign aid rescue method takes a long time and cannot rescue the trapped people in time, which will cause a great threat to the lives of the trapped people.

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