An elevator redundant electrical safety circuit and a braking and stopping control method

An electrical safety and elevator technology, which is applied in the field of elevator redundant electrical safety circuits and elevator braking and stopping, to avoid safety accidents and economic losses, ensure passenger safety, and reduce the elevator trapped rate.

Active Publication Date: 2016-05-04
CHONGQING SPECIAL EQUIP INSPECTION & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no effective means to prevent the occurrence of trapped people caused by the failure of the elevator

Method used

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  • An elevator redundant electrical safety circuit and a braking and stopping control method
  • An elevator redundant electrical safety circuit and a braking and stopping control method
  • An elevator redundant electrical safety circuit and a braking and stopping control method

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Embodiment Construction

[0028] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.

[0029] In order to ensure that the elevator can run safely, many safety components are installed on the elevator. The so-called electrical safety circuit is that the corresponding safety components of the elevator are equipped with safety switches. Only when all the safety switches are connected, the safety relay is closed, and the elevator has the conditions for operation. In the safety circuit of the traditional elevator, there are only the first set of switches and the second set of switches.

[0030] The reliability of the elevator electrical safety circuit switch is affected by factors such as the quality of the switch itself, operating environment, maintenance adj...

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PUM

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Abstract

The invention discloses an elevator redundant electrical safety circuit, which comprises a first group of switches, a second group of switches, a third group of switches and a fourth group of switches. Trapped people can be guaranteed to be effectively evacuated in time by adding the third group of switches and the fourth group of switches in the traditional safety circuit on the premise of guaranteeing the safety of an elevator when the elevator fails, so that the elevator operation reliability is improved, secondary injury caused by elevator accidents can be reduced to further guarantee the safety of passengers. Meanwhile, the invention also discloses an elevator stopping method. According to the elevator stopping method, on the basis of guaranteeing the safe operation of the elevator, passengers in a lift car can be released as quickly as possible, the elevator people trapping rate can be effectively lowered, and the elevator operation reliability is improved.

Description

technical field [0001] The invention relates to an elevator circuit, in particular to an elevator redundant electrical safety circuit, and at the same time relates to an elevator stopping method based on the elevator redundant electrical safety circuit. Background technique [0002] In recent years, my country's elevator industry has developed rapidly, and there are many failures. On the whole, the probability of casualties caused by elevator failure is very low, but it is easy to trap passengers in the car, which does not meet people's expectations for elevator operation reliability, timeliness of failure discovery, speedy rescue of trapped passengers, and convenience of troubleshooting. And higher requirements such as effectiveness. According to incomplete statistics, an average of 16.7 incidents of people trapped in elevators occurred every day in Guangzhou in 2013; there were nearly a thousand incidents of people trapped in elevators in Xiamen in 2012; on June 5, 2013, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00
Inventor 张东平吕潇何国华
Owner CHONGQING SPECIAL EQUIP INSPECTION & RES INST
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