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Mechanical overspeed protective device

An overspeed protection and mechanical technology, applied in transportation, packaging, escalators, etc., can solve the problems of induction loops susceptible to interference, low reliability, personal injury, etc., to achieve easier quality control, simple manufacturing, and site inspection convenient effect

Active Publication Date: 2009-06-17
XIZI OTIS ELEVATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the induction pulse counting anti-overspeed device is widely used at home and abroad. Although the device is easy to install and use, its reliability is not strong, and the induction circuit is susceptible to interference and failure.
Moreover, there is a lead-made speed measuring block in the imported host used in China, which will cause certain personal injuries

Method used

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Examples

Experimental program
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Embodiment Construction

[0014] see figure 1 — Figure 4 , the present embodiment includes a rotating part I and a joystick part II, and the rotating part I includes a rotating base plate 2, four limit screws 13, two sets of springs 11 and weights 14, the rotating base plate 2 is annular, and two sets of springs 11 It is installed symmetrically with the weight 14 on the rotating bottom plate 2, and one end of the weight 14 is installed on the rotating bottom plate 2 through the weight positioning pin 12, and the weight 14 can rotate around the positioning shaft pin 12, and one side of the weight 14 is opened. There are three small holes 15; one end of the spring 11 is fixed at the center of the rotating bottom plate 2 by a set screw 10, and the other end of the spring 11 is hooked to one of the small holes 15 on the weight 14; four limit screws 13 Divided into two groups, two in each group, two limit screws 13 are fixed on the rotating bottom plate 2 and are located on both sides of the weight 14 res...

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PUM

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Abstract

A mechanical overspeed protector for escalator is composed of a rotation unit consisting of rotating bottom plate, spring, weight and limiting screw, and a control arm unit consisting of drive rod, slide rod and bent rod.

Description

technical field [0001] The invention relates to an overspeed protection device, in particular to a mechanical overspeed protection device for escalators and moving walkways. Background technique [0002] Escalators and moving walks are widely used in large public places such as shopping malls, subways, and airports because of their efficient transport of people, so their safety is particularly important. The national standard stipulates that escalators and moving walks should be equipped with speed limiting devices, which can automatically stop running when the speed exceeds 120% of the rated speed; and the speed limiting device used can cut off the escalator when the speed exceeds 120% of the rated speed. and power supply for moving walks. At present, the induction pulse counting anti-overspeed device is generally used at home and abroad. Although the device is easy to install and use, its reliability is not strong, and the induction circuit is susceptible to interference ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B29/00B66B25/00
Inventor 徐锋胡杰江明平
Owner XIZI OTIS ELEVATOR
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