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Reversion detecting device and method for escalator

A technology for escalators and detection devices, which is applied in the field of electronic information, can solve problems such as easy misjudgment of escalator reversal detection, and achieve the effect of good reliability and fast response

Inactive Publication Date: 2013-07-17
KUSN KOYO ELEVATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a reverse detection device and method of an escalator to overcome the problem in the prior art that the escalator is prone to misjudgment during the reverse detection process

Method used

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  • Reversion detecting device and method for escalator
  • Reversion detecting device and method for escalator
  • Reversion detecting device and method for escalator

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Embodiment Construction

[0020] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that all the drawings of the present invention are in simplified form and use inaccurate scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0021] The reverse detection device of the escalator provided by the present invention, such as Figure 2~3b As shown, it includes: first and second detection devices 10 and 20 arranged on one side of the driving wheel 40 of the main machine of the escalator and D triggers 30 respectively connected to the first and second detection devices 10 and 20 . Wherein, the first detection device 10 and the second detection device 20 are sequentially arranged along the forward rotation direction of the main drive...

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Abstract

The invention discloses a reversion detecting device and method for an escalator. The reversion detecting device comprises a first detecting device, a second detecting device and a D trigger, the first detecting device and the second detecting device are arranged on one side of a main engine driving wheel of the escalator, and the D trigger is respectively connected with the first detecting device and the second detecting device. The first detecting device and the second detecting device are sequentially arranged in a forward rotating direction of the main engine driving wheel, a CP end of the D trigger is connected with the first detecting device, and a D end of the D trigger is connected with the second detecting device. According to the reversion detecting device and method for the escalator, whether signals sent by the first detecting device lag behind signals sent by the second detecting device or not can be determined through high-low electrical levels output by a Q end of the D trigger, and then whether reversion of the escalator occurs or not can be accurately determined. By means of the reversion detecting device and method for the escalator, the hardware D trigger has the advantages that the response speed is high, and the reliability is good, phase difference between the first detecting device and the second detecting device is not required to be considered, erroneous judgment is avoided, and defects of a 'microprogrammed control unit (MCU) sampling and software computing' method are avoided.

Description

technical field [0001] The invention relates to the field of electronic information, in particular to a reverse detection device and method of an escalator. Background technique [0002] Escalator reversal means that when the escalator is going up, the driving wheel chain of the main engine breaks or falls off, and the escalator suddenly changes direction due to the weight of the escalator and the weight of the passengers. If the escalator cannot be stopped in time at this time, it will cause serious equipment and personal safety accidents. The national standard stipulates that the escalator must be equipped with a reverse detection device to ensure that the escalator brakes immediately and stops the escalator when the reverse occurs and activates the additional brake. [0003] Currently, there are two commonly used reversal detection methods: [0004] One is to install two proximity switches A, B up and down on the right side of the gear 200 of the host drive wheel 100 of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B29/00
Inventor 陈小平张晴石琦
Owner KUSN KOYO ELEVATOR
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