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Half-height emergency door 90 degrec opening state keeping device

A technology for opening the state and maintaining the device, which is applied in the direction of building fastening devices, wing fan fastening devices, and anti-war damage, etc., can solve the problem of reducing the opening degree, etc. simple effect

Active Publication Date: 2007-08-22
FANGDA INTELLIGENT INNOVATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problem that the opening degree of the emergency door is reduced or closed due to wind pressure, small force extrusion, and impact, and propose a position holding device that assists the emergency door to maintain a certain angle open state

Method used

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  • Half-height emergency door 90 degrec opening state keeping device
  • Half-height emergency door 90 degrec opening state keeping device

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Embodiment Construction

[0020] Fig. 1, Fig. 2 have shown the basic structure of preferred embodiment of the present invention, and a kind of half-height emergency door 90 ° opening state keeping device comprises a door frame 1 and the emergency door 2 hinged on the door frame 1, and door frame 1 is made of hollow Composed of square columns, the emergency door 2 is provided with at least one arc-shaped shrapnel 3, and the arc-shaped shrapnel 3 is vertically arranged on the side wall of the hinged end of the emergency door 2. The arc-shaped shrapnel 3 is provided with a protrusion 4, and the protrusion 4 is a ball pin 4 with a spherical top. The door frame 1 is provided with a wedge-shaped piece 5 that can squeeze the protrusion 4 , and the door frame 1 on the right side of the wedge-shaped piece 5 is provided with a through hole for inserting the arc-shaped shrapnel 3 .

[0021] As shown in FIG. 4 , an upper slope and a lower slope 51 , 52 are respectively provided on the left and right sides of the w...

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PUM

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Abstract

The present invention relates to a hemi-height emergency exit door 90-deg. opened state retaining device. It includes a door frame and an emergency exit door hinged on the door frame, on the emergency exit door is set at least a curved spring sheet, on said curved spring sheet a projection is set, on the door frame a wedge-shaped component is set, said wedge-shaped component can be used for pressing the above-mentioned projection, two sides of said wedge-shaped component are respectively equipped with an upper oblique surface and a lower oblique surface, and said projection is a ball-shaped pin. Said invention also provides its working principle and its concrete operation method.

Description

technical field [0001] The invention relates to a positioning device, in particular to a position maintaining device for an emergency door in an open state. Background technique [0002] The half-height emergency door is a kind of safety door in subway and other stations. The emergency door is opened for the timely evacuation of the passengers on the train. It is required that after the door body is opened to 90°, it is only subject to a certain wind pressure when no force is applied to it to close it. It can be kept in the 90° open state. If the emergency door reduces the opening angle or closes automatically under the action of wind pressure, small force extrusion and impact, it will have a certain impact on the evacuation of passengers. At the same time, the purpose of the emergency door determines that the door should not be controlled or positioned by a mechanical device with a complex structure, in order to prevent a certain part of the mechanical device from being dam...

Claims

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Application Information

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IPC IPC(8): E05C17/46E05C17/08E06B5/10
Inventor 郭俊义
Owner FANGDA INTELLIGENT INNOVATION TECH CO LTD