Anti-falling device for villa elevator

By designing a counterweight block-driven safety clamp trigger mechanism in the villa elevator anti-fall device, the problem of the car not being safely fixed in the prior art when the speed threshold is not reached, and the safety effect of stopping the car from falling immediately when the wire rope breaks is achieved.

CN119683442AInactive Publication Date: 2025-03-25LONGCHUANG INTELLIGENT TECH (ZHEJIANG) CO LTD
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Patent Information

Application Number
CN202411904259.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-03-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing elevator fall-proof device cannot effectively fix and limit the car when it does not reach the speed threshold, which poses safety hazards.

Method used

A villa elevator anti-fall device is designed. By using counterweight blocks to drive the trigger mechanism of the safety pliers when the wire rope breaks, the car speed is quickly reduced and its fall is stopped. The device includes a wedge-shaped brake member, a first swing arm, a first connecting rod, a second swing arm, a connecting rope and a counterweight block. The gravity of the counterweight block causes the swing arm to move when the wire rope breaks, and pulls the wedge-shaped brake member to hold the guide rail tightly.

Benefits of technology

It realizes safe fixing and limiting the car immediately when the wire rope breaks, avoiding the safety hazard of the car falling due to failure to reach the speed threshold.

✦ Generated by Eureka AI based on patent content.
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Abstract

The anti-falling device comprises a lift car, a steel wire rope is hung on a rope wheel of a traction machine, the lift car is hung at one end of the steel wire rope, and a counterweight device is hung at the other end of the steel wire rope; a mounting frame is arranged at the bottom of the lift car, and safety tongs are arranged at the two ends of the mounting frame. The safety tongs comprise a wedge-shaped brake part, and the upper end of the wedge-shaped brake part is installed on the first connecting rod through a first swing arm. The safety tongs triggering mechanism comprises a second swing arm, one end of the second swing arm is fixed to the first connecting rod on one side, the other end of the second swing arm is fixed to a connecting rope, a balancing weight is fixed to one end of the connecting rope, and the other end of the connecting rope penetrates through a pulley on the outer side of the lift car, extends to the top of the lift car and is fixed to the steel wire rope. A trigger mechanism of the safety tongs is changed into the balancing weight fixed to the steel wire rope, the combination of the balancing weight and the connecting rope can quickly respond to breakage of the steel wire rope, and the lift car can be safely fixed and limited immediately without the condition that the falling speed of the lift car reaches a speed threshold value.
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