Elevator safety clamp

A safety gear and elevator technology, used in transportation, packaging, elevators, etc., can solve the problems of small braking adjustment range, reduced safety performance, friction pad wear, etc., to achieve good braking effect, long service life, and braking process. smooth effect

Active Publication Date: 2016-08-31
湖州市湖梯协电梯技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional safety gear generates high heat during actual braking, and the friction plate on the braking surface is easy to wear out during the long-term operation of the elevator, resulting in a decrease in safety performance. In addition, the traditional safety gear has a small braking adjustment range, making it difficult to It has a good braking effect on various overspeed situations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] according to Figure 1 to Figure 4 As shown, an elevator safety gear is characterized in that it includes: a bracket 1, an upper clamp body 2, a lower clamp body 3 and a pull rod 4;

[0034] The bracket 1 includes an upper clamp body cavity 11 and a lower clamp body cavity 12 connected up and down. The center of the bracket 1 is provided with a through groove 13 for the guide rail 5 to pass through. The top of the bracket 1 is provided with a through hole 14 for the upper pull rod 41 to pass through.

[0035] The upper pliers body 2 is arranged in the upper pliers body cavity 11 and includes an upper fixed wedge 21 and an upper movable wedge 22 arranged from outside to inside, and a first horizontal hole 221 is arranged at the lower part of the upper movable wedge 22 .

[0036] The lower pliers body 3 is arranged in the lower pliers body cavity 12 and includes a lower fixed wedge 31 and a lower movable wedge 32 arranged from outside to inside, and a second horizontal ho...

Embodiment 2

[0042] The difference from the above-mentioned embodiment 1 is that a guide piece 23 is provided between the upper fixed wedge 21 and the upper movable wedge 22, and a roller is arranged inside the guide piece 23, and the roller and the slope of the fixed wedge 22 are in contact with each other for Optimize the movement guide of upper movable wedge 22.

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PUM

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Abstract

The invention relates to the field of safety of elevators, in particular to an elevator safety clamp. The elevator safety clamp comprises a bracket, an upper clamp body, a lower clamp body and a pull rod; the bracket includes an upper clamp body cavity and a lower clamp body cavity connected up and down; the upper clamp body is arranged in the upper clamp body cavity, and includes an upper fixed wedge and an upper movable wedge arranged from outside to inside; a first transverse hole is formed in the lower part of the upper movable wedge; the lower clamp body is arranged in the lower clamp body cavity, and includes a lower fixed wedge and a lower movable wedge arranged from outside to inside; a second transverse hole is formed in the lower movable wedge; and the pull rod includes an upper pull rod and a lower pull rod.

Description

technical field [0001] The invention relates to the field of elevator safety, in particular to an elevator safety gear. Background technique [0002] When the elevator breaks down unexpectedly, causing the elevator to run at overspeed, or the elevator falls unexpectedly, in order to protect the safety of the passengers, the elevator is usually equipped with a safety protection device. Conventional safety protection devices include a speed limiter and a safety gear. When the elevator runs at an overspeed, the speed limiter starts to pull up the pull rod of the safety gear, so that the safety gear clamps the guide rail to brake the elevator car. The traditional safety gear is divided into instantaneous type and progressive type, which are respectively used in elevators with running speeds below 0.63m / s and above 0.63m / s. However, the traditional safety gear generates high heat during actual braking, and the friction plate on the braking surface is easy to wear out during the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/18
CPCB66B5/18
Inventor 潘国强张能吴斌华王建余勾晓波宋鹤亭
Owner 湖州市湖梯协电梯技术服务有限公司
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