Safety gear for elevator and elevator device thereof

Abstract

The invention discloses safety tongs for an elevator. The safety tongs for the elevator are of a structure in mirror symmetry; the safety tongs comprise a shell, male sliders, female sliders and a transmission rod, wherein the male sliders are fixedly arranged inside the shell; the female sliders are arranged inside the shell; the shell is of a structure in mirror symmetry; two male sliders are respectively arranged at the two sides of the shell and are fixedly connected with the two sides of the shell; two female sliders are arranged and are matched with the male sliders; the female sliders and the male sliders are inserted mutually, and the insertion surface between each male slider and each female slider is a bevel; the transmission rod is connected with the two female sliders. The invention provides the safety tongs for the elevator and an elevator device of the elevator; bidirectional sliders are used for emergency braking, so during emergency braking of the elevator, a passenger in the lift car can be prevented from a horizontal impact force, casualties are reduced, and the safety of the elevator is improved.

Description

Technical field [0001] The invention relates to the technical field of elevator manufacturing, in particular to a safety gear for an elevator and an elevator device thereof. Background technique [0002] Elevator safety gear is a kind of safety device that stops the elevator car and clamps it on the guide rail when the elevator has overspeed, rope breaking and other serious faults under the control of the speed limiter. It provides safe operation of the elevator. Effective protection. [0003] At present, the existing elevator safety tongs all use unilateral sliding blocks to brake. When the elevator has very serious faults such as overspeed or broken rope, the passengers in the elevator car suffer a rapid downward impact force, and the safety tongs brake urgently. Because the safety gear is braked by a unilateral slide block, the guide rail shifts quickly on one side, and the car moves to one side following the guide rail. Therefore, people will be subjected to rapid lateral impa...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing elevator safety tongs all use unilateral sliders for braking. When the elevator has a very serious failure such as overspeeding or broken rope, the passengers in the elevator car will suffer a rapid downward impact, and the safety tongs will brake in an emergency. Since the safety gear is braked by a unilateral slider, the side of the guide rail is shifted rapidly, and the car is shifted to one side following the guide rail, so people will be subjected to a rapid lateral impact force, causing secondary injuries to passengers. Therefore, there is It is necessary to propose a new type of elevator safety gear and its elevator device to solve the above problems

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