Accidental car movement protection circuit and method

A technology for accidental movement and circuit protection, applied to elevators, hoists, transportation and packaging in buildings, etc., can solve problems such as stopping the car, hidden safety hazards, and reducing elevator safety, so as to achieve fast response and improve safety Sexuality and the effect of eliminating potential safety hazards

Inactive Publication Date: 2016-08-10
SHANGHAI STEP ELECTRIC
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] However, the geared elevator is not equipped with a car accidental movement protection device. When the landing door is not locked and the car door is not closed, there may be a non-manipulative car accidental movement. This kind of car accidental movement In this case, there is a great potential safety hazard, which reduces the safety of the elevator
[0004] For geared elevators, the car accidental movement protection method in the prior art cannot effectively stop the car and keep it in a stopped state when the car moves unexpectedly

Method used

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  • Accidental car movement protection circuit and method
  • Accidental car movement protection circuit and method
  • Accidental car movement protection circuit and method

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0026] The first embodiment of the present invention relates to a car accidental movement protection circuit, which is applied to a geared elevator, and the specific structure is as follows figure 1 As shown, the car accidental movement protection circuit includes: a control device 101, a door zone switch, a car door switch ...

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Abstract

The invention relates to the technical field of elevators and discloses an accidental car movement protection circuit and a method. The accidental car movement protection circuit is applied to a geared elevator and comprises a control device, a door area switch, a car door switch and a brake device, wherein the door area switch, the car door switch and the brake device are connected with the control device; when an elevator is located in a door area, the door area switch is switched on; when the elevator is located outside the door area, the door area switch is switched off; when a car door of the elevator is closed, the car door switch is switched on; when the car door is opened, the car door switch is switched off; when the car door switch is switched off and the door area switch is switched off, the control device controls the brake device to stop the elevator, so that the car can be effectively braked and maintains the stop state when the car of the geared elevator is subjected to accidental movement; the potential safety hazard caused by the accidental movement of the car of the geared elevator is eliminated; the safety of the geared elevator is improved.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a car accidental movement protection circuit and method. Background technique [0002] An elevator is a vertical lifting device powered by an electric motor, which is used in multi-storey buildings to take people or carry goods. As a means of transportation in the vertical direction, elevators have become important construction equipment in high-rise buildings and public places and are indispensable. [0003] However, the geared elevator is not equipped with a car accidental movement protection device. When the landing door is not locked and the car door is not closed, there may be a non-manipulative car accidental movement. This kind of car accidental movement In this case, there is a great potential safety hazard, which reduces the safety of the elevator. [0004] For geared elevators, the car accidental movement protection method in the prior art cannot effectively stop th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B13/16B66B5/16B66B1/36
CPCB66B13/165B66B1/36B66B5/16
Inventor 林开伟陈曼雯刘海周杨林成
Owner SHANGHAI STEP ELECTRIC
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