Trigger method for elevator device and elevator protection

Abstract

The invention discloses an elevator device which comprises a safety clamp connected with an elevator car, a tensioning rope connected with the safety clamp, a clamp assembly capable of clamping the tensioning rope, a sliding part connected with the clamp assembly and a clamp triggering mechanism used for driving the sliding part to ascend and descend. The elevator device further comprises a mastercontrol plate, a first detection part used for detecting the position and / or speed of the elevator car, and a speed limiter used for conducting overspeed protection on the elevator car. A novel safety clamp triggering manner is adopted, the elevator car is braked through the safety clamp, triggering, braking and starting are reliable, and the elevator car can be rapidly and reliably braked by thesafety clamp. The functions of the bidirectional safety clamp cannot be affected by oil dirt on a dragging steel wire rope, cannot be affected by the exceeding abrasion of the dragging steel wire rope and the too small diameter of the dragging steel wire rope, cannot be affected by the failure or insufficient braking force of a brake and cannot be affected by the condition that the balance coefficient is smaller than 40% or larger than 50% and does not conform to the national standard dragging condition.

Description

technical field [0001] The invention relates to the field of elevators, in particular to an elevator device and a trigger method for elevator protection. Background technique [0002] In real life, when the elevator fails to stop and the door of the leveling door area is opened, it is very easy for the car to move accidentally without manipulation, that is, the phenomenon of slipping, which threatens the personal safety of passengers entering and leaving the car. When the brake function of the traction machine fails (including the failure of the redundant braking function of the brake), or the braking force is insufficient, or the traction rope slips, the elevator car appears to move unexpectedly without manipulation. The non-manipulated accidental movement of the car seriously threatens the passengers who are entering and leaving the elevator car, and even serious personal accidents may occur. [0003] The elevators installed by some manufacturers also adopt the braking me...

AI Technical Summary

Problems solved by technology

The braking method of the rope gripper is also not ideal due to various reasons such as the wear and tear diameter of the traction rope becomes smaller, the oily slip of the traction rope, the wear of the rope clamp device, and the artificial cancellation of the function due to malfunction.

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