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Fall-protection safety device of lifter

A safety device and lift technology, applied in lifts, transportation and packaging, etc., can solve the problems of major production accidents, high cost of cone-drum safety devices, etc., and achieve the effects of low cost, compact structure, and reduced manufacturing costs.

Inactive Publication Date: 2012-06-27
ANHUI FENGHAI CRANE EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the current cargo lifts use anti-falling safety devices that rely on spring force. This safety device can only work when the wire rope is broken. ), the safety device will not act, resulting in a major production accident
The cone-drum type safety device is not only expensive, but also must be equipped with a rack to be used. Currently, it is only used on rack-and-pinion elevators, and other elevators cannot be used.

Method used

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  • Fall-protection safety device of lifter
  • Fall-protection safety device of lifter
  • Fall-protection safety device of lifter

Examples

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Embodiment Construction

[0021] Referring to the accompanying drawings, the anti-falling safety device of the elevator includes a speed limiter 1, a safety gear 2, and a lifting device 3. The speed limiter 1 includes a bracket 4 fixed on the cage 25, and a shaft 5 is installed on the front end of the bracket. One end of the shaft 5 is fixedly mounted with a speed measuring wheel 6, and a steel wire rope 7 is wound on the speed measuring wheel 6, and the other end of the shaft 5 is fixedly mounted with a centrifugal block seat 8, and the centrifugal block seat 8 is externally provided with a casing 9 rotatably mounted on the shaft. The inner wall of the housing 9 is provided with a protrusion 10, and the centrifugal block seat 8 is connected with a centrifugal block 11 matched with the protrusion by a leaf spring 26. The hook bolt 12 passes through the centrifugal block seat 11, and the upper end of the hook bolt 12 is connected to the A spring 13 is placed between the centrifugal block seats, and the l...

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Abstract

The invention discloses a fall-protection safety device of a lifter, which comprises a speed limiter, safety tongs and a pulling and lifting device. The speed limiter comprises a support fixed on a lifting cage, a shaft is mounted at the front end of the support, a speed metering wheel is fixedly mounted at one end of the shaft, a steel wire is wound on the speed metering wheel, a centrifuge block seat is fixed mounted at the other end of the shaft, an outer casing rotationally mounted on the shaft is arranged outside the centrifuge block seat, the inner wall of the outer casing is provided with a projection, and the centrifuge block seat is connected with a centrifuge block matched with the projection through a plate spring. By the fall-protection safety device of the lifter, a protection function for overspeed running and rope breaking of the lifter is realized. Besides, the fall-protection safety device is low in manufacturing cost, high in adaptability, can be widely used in various lifters completely and can improve safety performance of the lifter.

Description

technical field [0001] The invention relates to the field of vertical transportation machinery such as a material hoist and an elevator, and specifically belongs to an anti-falling safety device for an elevator. Background technique [0002] Most of the current cargo lifts use anti-falling safety devices that rely on spring force. This safety device can only work when the wire rope is broken. ), the safety device will not act, thus causing a major production accident. The cone-drum type safety device is not only expensive, but also must be equipped with a rack before it can be used. At present, it is only used in the rack-and-pinion elevator, and other elevators cannot be used. Contents of the invention [0003] The object of the present invention is to provide an anti-falling safety device for an elevator, which can realize the overspeed and rope breaking protection functions of the elevator, and has low cost and strong adaptability, and can be widely used in various ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/22B66B5/04
Inventor 顾金柱马少奎侯恩敏
Owner ANHUI FENGHAI CRANE EQUIP MFG
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