Detecting and protecting system for accidental movement of elevator car

A technology of accidental movement and protection system, applied in elevators, transportation and packaging, etc., can solve problems such as brake wear, elevator car accidental movement, safety hazards, etc., and achieve the effect of improving safety

Inactive Publication Date: 2016-06-22
广东台日电梯有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing elevator technology, the general braking device is the brake on the main machine, which is used to hold the traction sheave during braking; however, the brake will inevitably wear out after long-term use, and the worn brake will produce Minor changes are difficult for maintenance personnel to notice. However, it is this kind of wear that poses a serious safety hazard to the elevator; If the brake force arm on the other side fails, the elevator car will move unexpectedly at this time, resulting in serious safety hazards. Unbelievable

Method used

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  • Detecting and protecting system for accidental movement of elevator car
  • Detecting and protecting system for accidental movement of elevator car
  • Detecting and protecting system for accidental movement of elevator car

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Embodiment Construction

[0013] like figure 1 As shown, a car accidental movement detection and protection system includes an electrical detection control unit and an execution unit, the detection control unit includes a logic circuit, an I / O interface and a drive circuit, and the execution unit includes a door mechanical linkage device 103 and a brake, the brake is electrically connected to the electrical detection control unit, the detection circuit is connected to the controller of the elevator, and the door mechanical linkage device is provided with more than one, when the elevator is level and in the state of opening the door, In the case of unexpected movement of the car, in the detection unit circuit 1, that is, when the leveling induction signal L1 and FL1 leave the magnetic isolation plate at the same time, that is, when the signal fails, the relay KM2 loses power, and the KM2 switch in the brake control circuit is turned off S05 and S06, so as to control the power loss of the brake to stop t...

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Abstract

The invention discloses a car unexpected movement detection and protection system, which includes an electrical detection control unit and an execution unit, the detection control unit includes a logic circuit, an I / O interface and a drive circuit, and the execution unit includes a door mechanical linkage device and a brake, the brake is electrically connected to the electrical detection control unit, and the detection circuit is connected to the controller of the elevator; it can regularly detect the braking force of the brake, and it contains the double protection function of the door mechanical linkage device and the brake , can prevent accidental movement, so the safety against accidental movement is greatly improved.

Description

technical field [0001] The invention relates to a car unexpected movement detection and protection system. Background technique [0002] While the global economy is growing rapidly, the demand for elevators is also increasing, making the competition in the elevator manufacturing and installation market increasingly fierce. However, elevator safety accidents are also heard from time to time, so continuously improving the safety factor of elevators is a constant direction. In the existing elevator technology, the general braking device is the brake on the main machine, which is used to hold the traction sheave during braking; however, the brake will inevitably wear out after long-term use, and the worn brake will produce Minor changes are difficult for maintenance personnel to notice. However, it is this kind of wear that poses a serious safety hazard to the elevator; If the brake force arm on the other side fails, the elevator car will move unexpectedly at this time, result...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/16B66B5/00
CPCB66B5/16B66B5/0031
Inventor 陈志坚
Owner 广东台日电梯有限公司
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