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Elevator protection device

A protection device and elevator technology, applied in the directions of transportation, packaging, elevators, etc., can solve the problems of low accuracy and low encoder accuracy, and achieve the effects of high accuracy, good reliability and increased safety.

Active Publication Date: 2013-03-20
SJEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]In the prior art, the running speed of the elevator is obtained through the measurement of the encoder, so as to monitor whether it is overspeed, and the accuracy of the measurement of the encoder is not high
The automatic leveling position of the elevator car is determined by the leveling sensor, and the accuracy is also not high

Method used

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  • Elevator protection device

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Embodiment Construction

[0013] The structure of the present invention will be further described below in conjunction with the accompanying drawings.

[0014] see figure 1 As shown, an elevator protection device includes a barcode strip 1, a barcode sensor 2, and an elevator main control board. The barcode strip 1 is fixedly arranged in the shaft of the elevator, for example, on the guide rail of the elevator. The barcode strip 1 has a plurality of barcodes 11 arranged at even intervals along the up and down direction, and each barcode 11 is composed of black strips and white spaces with different widths and different reflectivities according to certain coding rules. It is a graphic identifier expressing a group of numbers or letters, and each barcode 11 is accompanied by its own unique information data. The barcode sensor 2 is installed on the car or car frame of the elevator, and is used for detecting the barcode 11. The barcode sensor 2 goes up and down with the car, and outputs a pulse signal to...

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Abstract

The invention discloses an elevator protection device, and the elevator protection device is characterized in that a bar code sensor is used for detecting a bar code, a pulse signal is acquired to be transmitted to an elevator main control panel, a speed protection function and a position protection function of the elevator can be realized through the computation and analysis of the elevator main control panel, the accuracy for monitoring the overspeed and the position of a carriage is high, the reliability is good, and the running safety of the elevator is improved.

Description

[0001] technical field [0002] The invention relates to an elevator protection device. [0003] Background technique [0004] In the prior art, the running speed of the elevator is obtained through encoder measurement, so as to monitor whether the elevator is overspeed, and the accuracy of the encoder measurement is not high. The automatic leveling position of the elevator car is determined by the leveling sensor, and the accuracy is also not high. [0005] Contents of the invention [0006] The object of the present invention is to provide an elevator protection device which monitors the actual running speed of the elevator and realizes the car position protection by detecting the bar code through the bar code sensor, and the accuracy of the device is high. [0007] In order to achieve the above object, the technical solution adopted by the present invention is: an elevator protection device, which includes a bar code tape fixedly arranged in the shaft of the elevator...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/00B66B3/02
Inventor 张敏慧陶宪德
Owner SJEC CORP
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