自动扶梯非操纵逆转保护功能失效案例分析

Case Analysis of Failure of Escalator Non-manipulation Reversal Protection Function

非操纵逆转保护装置是自动扶梯不可或缺的安全装置,其功能一旦失效会给扶梯带来重大安全隐患。本文针对定期检验时发现的一例自动扶梯非操纵逆转保护功能失效的情况,结合其设计原理,分析失效原因,并分别从维保方面和检验方面给出了相关建议,有利于在以后的工作中找到问题的根源并避免非操纵逆转保护功能失效带来的巨大风险。

The non-manipulation reversal protection device is an indispensable safety device for escalator.Once its function fail,it will bring major safety hazards to escalator.Based on a case of failure of the non-manipulation reversal protection function of an escalator discovered during regular inspection,this article analyzes reasons for the failure in combination with its design principles,and gives relevant suggestions from the maintenance and inspection aspects.It is helpful to find the root of problem in the future work and avoid huge risk caused by failure of the non-manipulation reversal protection function.