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Vehicle emergency evacuation door ramp recovery mechanism

A recovery mechanism and ramp technology, which is applied to door devices, railway car body components, transportation and packaging, etc., can solve the problems of complicated recovery operations and difficult recovery of ramps, and achieve simple and clear conversion, improve work reliability, less messy effect

Active Publication Date: 2022-04-12
ZHUZHOU GOFRONT EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to overcome the defects of difficult ramp recovery and complex recovery operation in the prior art, and provide a ramp recovery mechanism for vehicle emergency evacuation doors that is easy to operate and quick to recover

Method used

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  • Vehicle emergency evacuation door ramp recovery mechanism
  • Vehicle emergency evacuation door ramp recovery mechanism
  • Vehicle emergency evacuation door ramp recovery mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, a vehicle emergency evacuation door ramp recovery mechanism is provided, the end of the ramp 11 is connected with a column 12, and the recovery mechanism A is installed on the column 12, and a drawstring 13 for retracting the ramp extends from the recovery mechanism; Such as figure 2 and 4 As shown, the recovery mechanism includes a mounting seat 2 with two side walls arranged on the column 12, and an arc-shaped groove 21 is provided at the corresponding position on the two side walls of the mounting seat 2, and the arc edge in the arc-shaped groove faces the side of the ramp. There is a boss 22 on the inner arc of the slot 21 near the end of the column 12 , and a ratchet device for retracting the drawstring 13 is installed in the space formed by the two side walls of the mounting seat 2 .

[0031] Such as image 3 and 4 As shown, the ratchet device includes a ratchet shaft 31 installed through the two side walls of the mounting base 2, t...

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Abstract

The invention relates to the technical field of vehicle accessories, and discloses a ramp recovery mechanism for a vehicle emergency evacuation door, in which a pull belt for retracting and unwinding the ramp is protruded; The two side walls are correspondingly provided with an arc-shaped groove with the inner arc edge facing the side of the ramp, and a boss is provided near the end of the column near the inner arc edge of the arc-shaped groove, and a ratchet device for retracting and retracting the pull belt is installed in the mounting seat, which includes a pawl Components and the ratchet shaft that run through the two side walls of the mounting seat, the pull belt is wound around the ratchet shaft, the ratchet shaft is provided with a ratchet and a crank rocker that can rotate around the ratchet shaft, and the crank rocker is provided with a rotating rod assembly that makes the ratchet rotate and a control rotating rod The button part of the assembly, the button part is installed from the button shaft to the crank rocker, and the rotating rod assembly includes a ratchet rotating rod passing through the arc groove of the mount; rotating the button part can make the ratchet rotating rod bypass the boss in the arc groove, The crank section of the crank rocker can contact or break away from the ratchet assembly to control the rotation of the ratchet to retract or release the drawstring when it rotates.

Description

technical field [0001] The invention relates to the technical field of urban rail vehicle accessories, in particular to a ramp recovery mechanism for vehicle emergency evacuation doors. Background technique [0002] The use of folding evacuation door ramps at the front end of urban rail vehicle cabs can effectively save the storage space in the cab. Evacuate passengers. [0003] However, after the ramp is unfolded, the center of gravity is under the vehicle body, which will be much lower than that in the folded state. This low center of gravity will cause troubles to the recovery of the evacuation door ramp in this state, making it extremely difficult and difficult to recover the ramp. It is complex and requires the cooperation of multiple people, and during the recycling process, there may also be a risk of the ramp being accidentally deployed due to gravity, which will cause potential safety hazards. Contents of the invention [0004] The technical problem solved by th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61D23/02B61D19/02
CPCB61D23/02B61D19/023
Inventor 张莹罗为彭丽军刘佼龙杨冠男姜宇飞张孟林
Owner ZHUZHOU GOFRONT EQUIP
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