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Protection system for preventing elevator from accidentally moving in elevator stop and door open state

A technology of protection system and door opening state, which is applied in the field of elevator and elevator safety control, can solve problems such as accidental movement of the car, and achieve the effect of reducing the risk of accidental injury and improving safety.

Active Publication Date: 2012-09-12
HANGZHOU HUNING ELEVATOR PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the use of the elevator, there is indeed a safety risk that the above-mentioned unexpected movement may occur. When the elevator brake fails or is excessively worn, or because the elevator is overloaded, it may cause the car to move unexpectedly (rolling)

Method used

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  • Protection system for preventing elevator from accidentally moving in elevator stop and door open state
  • Protection system for preventing elevator from accidentally moving in elevator stop and door open state
  • Protection system for preventing elevator from accidentally moving in elevator stop and door open state

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Experimental program
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Embodiment Construction

[0018] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] The protection system for the accidental movement of the elevator when the elevator is stopped and the door is open, including a monitoring circuit for the unexpected movement of the car when the elevator is stopped and the door is open, and an elevator wire rope brake. The monitoring circuit is used to monitor whether the elevator has moved unexpectedly, and after detecting the unexpected movement of the elevator car, it will issue an instruction to control the trigger electromagnet of the wire rope brake to clamp the wire rope connected to the elevator car, so that the brake occurs Unexpectedly moving elevator car. The wire rope brake is installed in the elevator machine room or shaft, the traction wire rope linked to the elevator car passes through the brake, and the brake plates of the brake are on both sides of the traction wi...

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Abstract

The invention discloses a protection system for preventing an elevator from accidentally moving in an elevator stop and door open state. The protection system comprises a monitoring circuit, wherein the monitoring circuit comprises an input signal circuit, a central processing unit (CPU) and a relay output circuit, wherein four ports (11, 12, 13 and 14) of the input signal circuit respectively input a first door area switching signal, a second door area switching signal, an elevator stop signal and an elevator door open state signal; and after the signals are processed by the CPU, the relay output circuit outputs the signals and controls an electromagnet on steel wire rope brake and a safety circuit on an elevator control system. By the protection system for preventing the elevator from accidentally moving in the elevator stop and door open state, a safety protection measure can be provided when an accidental moving safety accident of the elevator occurs, so that the operating safety of the elevator is improved; and therefore, the accidental injury risk of the elevator on people or goods is reduced.

Description

technical field [0001] The invention belongs to the technical field of elevators, in particular to the technical field of safety control of elevators, in particular to a protection system for preventing accidental movement (that is, slipping) of elevators in the state of stopping and opening doors. Background technique [0002] Elevator is a kind of vertical lifting transportation equipment, which is used to carry passengers or goods, and is a necessary transportation equipment for high-rise buildings. With the rapid development of my country's economic development and urbanization process, there are more and more high-rise buildings, and the market demand for elevators is also increasing, and the amount of elevators is very large. [0003] Among the various technologies of the elevator, safe operation is the technical requirement for the primary guarantee of the elevator. For the unexpected movement of the elevator car, the latest European standards define it as follows: A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/02
Inventor 孟红星邹家春
Owner HANGZHOU HUNING ELEVATOR PARTS CO LTD
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