Device and method for blocking human body when elevator landing door is not normally opened

Abstract

The invention relates to a device and method for blocking a human body when an elevator landing door is not normally opened. The device comprises a blocking start part and a blocking part. The blocking start part is composed of a large rotating disc, a small rotating disc, a pawl tripping mechanism, a rotating disc push rod and a starting part base, wherein the large rotating disc and the small rotating disc are connected with pawls respectively, and pawl tripping opening hooks are arranged below the pawls. The blocking part is composed of a locking hook, a blocking piece and a blocking part base. The method includes the steps that firstly, people can not enter an elevator cage when the elevator cage is not on a certain landing and the landing door of the landing is not normally opened, and therefore the safety protection effect is achieved; when the elevator cage arrives at the certain landing, the normal use of an elevator is not influenced. The casualty accident that people fall off a building from the landing door of the elevator can be prevented, and potential safety hazards can be eliminated; due to the mechanical blocking structure, blocking is visible and reliable.

Description

technical field [0001] The invention relates to a safety protection device for an elevator, in particular to a device and a method for blocking the abnormal opening of an elevator landing door by a human body. Background technique [0002] Due to various reasons such as failure or maintenance of the elevator, the elevator car will open the landing door before reaching the floor, causing people to fall and casualties. This kind of elevator accidents occur from time to time all over the country. Casualties caused by the triangular key accidentally falling down the shaft when opening the landing door. On September 8, 2013, an elevator accident occurred in Building A, Fuyong Shangyuan Community, Baoan District, Shenzhen. The cause was that the electrician used a triangular key to remove the protective film of the elevator landing door Opening the elevator door on the 16th floor, the cleaner unfortunately fell into the shaft and died while cleaning. According to the statistics o...

AI Technical Summary

Problems solved by technology

In addition, due to elevator failures, the car stopped in the non-leveling area, some passengers rescued themselves by mistake, lost stability when jumping off the car, fell into the hoistway and fell to death. The device and method of opening and blocking are necessary to protect the safety of personnel

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