Novel safety gear and elevator falling-preventing device

Abstract

The invention provides a novel safety gear and an elevator falling-preventing device. According to the novel safety gear, upper and lower guide wheels are additionally arranged in an existing safety gear structure, and therefore safety gear misoperation is avoided during normal elevator operation. The elevator falling-preventing device comprises a first flexible component and the novel safety gear which are combined for use or further comprises a guide rail and a second flexible component which are installed in a matched mode. By means of the structure, elevator safety is improved, impact force of the safety gear acting process on a car, the guide rail, a guide rail support and a well enclosure is lowered, the elevator car is directly hung on an upper beam through a flexible force bearing component after being stopped, the hidden danger that the guide rail, the guide rail support and the well enclosure are loosened and disengaged is eliminated, the possibility that elevator passengers are injured is greatly lowered, and the installation and maintenance cost is reduced.

Description

technical field [0001] The invention relates to a safety device for an elevator, in particular to a novel safety gear and an elevator anti-falling device. Background technique [0002] The elevator fall prevention device is an indispensable safety device for elevators, mainly used to prevent the elevator car from falling out of control and falling from broken ropes. The existing elevator fall prevention device consists of a safety gear assembly, a safety gear lifting linkage mechanism, a speed limiter device, and an elevator car guide rail. When the elevator fall prevention device operates, the safety gear installed on the elevator car stops the elevator car on the guide rail, so there are the following problems: [0003] 1. Because the guide rail is rigid, the safety gear will generate a large impact force when it moves, which may cause injury to the elevator passengers; [0004] 2. Because the elevator car is directly stopped on the guide rail, it is required that the gu...

AI Technical Summary

Problems solved by technology

[0005] 3. Every time the safety gear moves, it will have an impact on the guide rail, guide rail bracket, and well wall, which may cause the guide rail bracket to loosen and fall off, resulting in a decrease in safety performance

[0006] 4. Every time the safety gear moves, it will damage the surface of the guide rail, and it is often necessary to repair the surface of the guide rail;

[0007] 5. The guide rails that have been ground and repaired will reduce the braking force when the safety gear is in action, resulting in an increase in the braking distance

[0008] The existence of these problems shows that there are certain safety hazards in the current elevator fall prevention device, and it will inevitably increase the installation and maintenance cost of the elevator.

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