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Urban rail traffic platform shielding door nipping-proof device and obstacle acquisition method

A technology for urban rail transit and screen doors, applied in the direction of measuring devices, geophysical measurements, and force measurements, can solve problems such as low reliability, trapping, and injury, and achieve simple structure, ensure driving safety, and avoid injuries. The effect of human accidents

Active Publication Date: 2008-08-06
GUANGZHOU METRO GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the vehicle boundary and the possible deformation of the screen door under wind pressure, there must be a gap of about 180mm between the closed screen door and the closed train door. This gap can accommodate thin people or children. If someone enters the gap after it is closed, the train and the signal cannot be detected and there must be a major injury accident when the train continues to drive, such as the fatal accident caused by the gap between the screen door and the train in the Shanghai Metro on July 15, 2007
[0005] In foreign countries, infrared detection methods are used to prevent pinching accidents, which have the following defects: 1. It is necessary to install infrared detection sensors on the side of the sliding door near the track, which must require installation space and increase the gap, otherwise the detection will not be complete or exceed the limit, and if you want to To scan the entire space, the cost of using a light curtain is high; 2. After the installation is completed, the infrared detection hole is easily affected by dust or debris and directly affects the driving operation, and the reliability is low

Method used

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  • Urban rail traffic platform shielding door nipping-proof device and obstacle acquisition method
  • Urban rail traffic platform shielding door nipping-proof device and obstacle acquisition method
  • Urban rail traffic platform shielding door nipping-proof device and obstacle acquisition method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] As shown in Figure 1, the safety barrier includes a horizontally arranged slope or curved anti-stand plate 2, which is made of 1.5-2mm stainless steel or other metal materials, which extends the barrier of the screen door to the direction of the track. The detection function is not convenient for people to stand, especially when one foot steps into the gap interval, it is difficult to prevent passengers from standing in the gap between the train door 6 and the screen door. Preferably, as shown in Figures 2a and 2b, the slope or curved anti-stand plate 2 is hinged to the side of the sliding door 1 near the track through a hinge 21, and a pressure sensor 3 is arranged below it, and the data processing between the pressure sensor 3 and the obstacle detection system The device 4 is connected to send an induction signal to it, and is used to detect whether there are people between the closed screen door and the train door gap, and simultaneously control the switch door. When...

Embodiment 2

[0030] The safety baffle includes metal baffles, rubber baffles or other non-metallic baffles 5 that are arranged on the edge of the sliding door 1 and protrude toward the track direction, so that the obstacle detection function of the screen door extends to the track direction and reduces Gap between train and screen door. In this embodiment, a baffle plate 5 with a height of about 500-2150 mm is vertically arranged on the edge of the sliding door. The size of the baffle plate extending to the track direction is related to the limit requirements, and its shape can be various, as shown in Figure 1 or with The limit curve requires a matching shape or other shapes of the baffle, and the design and installation of the baffle is especially suitable for the installed screen door (because the limit requirement is large, the gap needs to be adjusted or reduced). When the screen door is in the closing process, if the passenger is too close to the sliding door 1, the baffle plate 5 wil...

Embodiment 3

[0032] This embodiment is a combination of Embodiments 1 and 2. The safety stop includes an inclined or curved anti-standing plate 2 and a piezoelectric start sensor 3 located below the inclined or curved anti-standing plate 2, and also includes a metal plate vertically arranged on the edge of the sliding door 1 protruding toward the direction of the track. Baffle, rubber baffle or other non-metallic baffle 5, to further improve safety and reliability.

[0033] Based on the anti-clamping device of the above-mentioned shielded door, the present invention improves the obstacle detection method of the shielded door, as shown in Figure 4, the detection method is realized by the following steps:

[0034] (1) Start the screen door closing procedure;

[0035] (2) Detect whether there is an obstacle during the closing process of the shielded door. If there is an obstacle, the shielded door will stop closing and slide or open freely. Alarm; if there is no obstacle, the screen door is...

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Abstract

The invention discloses a clamp-proof device for a shield door of an urban rail transit railway platform and an obstacle detection method. The clamp-proof device of the invention comprises a sliding door of the shield door and an obstacle detection system, wherein, the sliding door close to the rail side is provided with a safety catch part which extends out towards the rail direction. The obstacle detection method is secondary detection on a gap between the shield door and a train door after closure of the shield door. The invention allows the obstacle detection function of the prior shield door to extend towards the rail direction through arrangement of the safety catch part and simultaneously the gap distance between the sliding door and a train is reduced, thereby passengers are prevented from standing on the gap between the train door and the shield door; dangerous accidents that the passengers are clamped due to the gap between the train and the shield door are prevented; driving safety is reliably guaranteed.

Description

technical field [0001] The invention relates to the field of platform screen doors of urban rail transit, in particular to a safety device for the screen door and an obstacle detection method, which can prevent and prevent the occurrence of dangerous accidents caused by the gap between the train and the screen door. Background technique [0002] In order to improve safety, the following technologies are widely used in shielded doors: 1. Obstacle detection system: when the sliding door is blocked from closing (the closing force is controlled at 150N), the door operating mechanism can detect the existence of obstacles and release the closing force. When an obstacle is encountered in the middle, the door closing force is immediately released, the door pauses (the pause time is adjustable within the range of 0-10 seconds), and then closes the door again. After repeated closing of the door N times (the number of times can be adjusted), the door still cannot be closed, and the slid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V9/00G01L1/00
Inventor 胡振亚谭晓梅赵军
Owner GUANGZHOU METRO GRP CO LTD
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