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The elevator buffer, an important safety protection device, plays a timely role in slowing down and absorbing energy, and avoid serious accidents when the elevator is descending at the bottom. In this study, based on the existing elevator buffer style, the process of continuous improvement and perfection of elevator safety protection devices and systems was described. A set of devices that can meet the requirements of buffering and braking was designed, consisting of a spring buffer device (or hydraulic buffer brake device) and a brake device similar to the elevator safety clamp. A brake device, acting on the elevator guide rail and with clamp structure, was designed to complete the braking function. The finite element analysis in the aspect of the elevator car safety force and motion state affirms the device's practicality and soundness.
Yaochuan Zeng (Mon,) studied this question.
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