Locking mechanism used for urban rail vehicle emergency evacuation ramp

A technology for evacuation ramps and urban rails, which is applied to railway car body components, transportation and packaging, etc. It can solve the problems of high cost, failure to ensure that the lock pin shaft is locked in place at the same time, unfavorable mass production, etc., and achieve reliability in use High, good application prospects, simple structure effect

Active Publication Date: 2015-06-03
NANJING KANGNI MECHANICAL & ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is that the existing locking mechanism used for emergency evacuation ramps of urban rail vehicles cannot ensure that the locking pin shaft is locked in place at the same time, the number of parts is large, the machining accuracy is high, and the cost is high , is not conducive to the problem of mass production

Method used

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  • Locking mechanism used for urban rail vehicle emergency evacuation ramp
  • Locking mechanism used for urban rail vehicle emergency evacuation ramp
  • Locking mechanism used for urban rail vehicle emergency evacuation ramp

Examples

Experimental program
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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Such as figure 2 , image 3 As shown, the locking mechanism for the emergency evacuation ramps of urban rail vehicles of the present invention includes two groups of symmetrically distributed ramp locks, which are distributed and installed on both sides of the emergency evacuation ramps of urban rail vehicles. Including push rod 2, lock seat 3, limit shaft 4, connecting shaft 5, lock plate 6, lock pin shaft 7 and air spring 8,

[0024] One side of the lock base 3 is connected to the tail of the push rod 2 through a rotary joint hinge, as Figure 4 and Figure 5 As shown, the other side of the lock seat 3 is fixed on the final pedal 1 of the emergency evacuation ramp of urban rail vehicles by bolts, and the limit shaft 4 is riveted on the push rod 2 to limit the rotation angle of the lock seat 3 , to limit the position of the lock seat 3 when the emergency ...

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PUM

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Abstract

The invention discloses a locking mechanism used for a urban rail vehicle emergency evacuation ramp. A ramp lock comprises a pushing rod, a locking seat, a limiting shaft, a connecting shaft, a shackling plate, a locking pin shaft and an air spring, one side of the locking seat is connected at the tail of the pushing rod through a rotation pair hinge while the other side of the same is fixed a last-stage pedal of the urban rail vehicle emergency evacuation ramp through bolts, the limiting shaft is riveted on the pushing rod, the shackling plate is fixed at the front end of the pushing rod through bolts, a locking pin shaft clamping groove is formed in the bottom of the shackling plate, the locking pin shaft is connected in the locking pin shaft clamping groove in a clamped manner and fixed on a first-stage pedal of the urban rail vehicle emergency evacuation ramp, one end of the air spring is hinged in the middle of the pushing rod while the other end of the same is hinged to the connecting shaft, and the connecting shaft is fixed on the last-stage pedal of the urban rail vehicle emergency evacuation ramp. The locking mechanism can reliably lock the ramp, is simple in structure and high in using reliability and has good application prospect.

Description

technical field [0001] The invention relates to the technical field of urban rail transit, in particular to a locking mechanism for emergency evacuation ramps of urban rail vehicles. Background technique [0002] The emergency evacuation ramp is the equipment used by urban rail vehicles to evacuate the vehicle drivers and passengers in an emergency. It is generally installed on the head of the vehicle and located directly behind the emergency evacuation door. After the emergency evacuation door is opened, the emergency evacuation ramp is activated. The road is unfolded to form an evacuation channel for drivers and passengers. Evacuation ramps are widely used because of their high evacuation efficiency, simple operation, and short time to form evacuation channels. [0003] The traditional emergency evacuation ramp is composed of multi-level pedals, rods, handrails and locking mechanisms. The multi-level pedals and rods are hinged through rotary pairs to form a multi-rod mech...

Claims

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Application Information

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IPC IPC(8): B61D23/02B61D49/00
CPCB61D23/025B61D49/00
Inventor 戴存贡智兵
Owner NANJING KANGNI MECHANICAL & ELECTRICAL
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