The invention relates to the technical field of train evacuation ladder structures, and discloses a train evacuation ladder locking device based on a ratchet wheel reset self-locking structure, and the key point of the technical scheme is that the train evacuation ladder locking device comprises a mounting plate, a limiting lock fork, a limiting pawl and an unlocking driving mechanism; the unlocking driving mechanism comprises a mounting seat and an unlocking part which can move relatively, the mounting seat is fixedly connected with the mounting plate, and a self-resetting locking structure is connected between the mounting seat and the unlocking part; the limiting pawl comprises a mounting end, an acting end and a driving end, and the driving end is rotationally connected with the unlocking part; the limiting lock fork comprises a lock fork notch, a self-locking step and a mounting part, and a self-resetting unlocking structure is connected between the limiting lock fork and the mounting plate; during no-load unlocking, the action end is driven to be separated from the self-locking step in response to the unlocking action of the unlocking part, and the lock fork notch moves to the unlocking position; during locking, the locking fork notch is driven to move to the locking position in response to the locking action of the external apron board assembly, and the acting end is connected with the self-locking step in a limiting mode.
本发明涉及列车疏散梯结构技术领域,公开了一种基于棘轮复位自锁结构的列车疏散梯锁闭装置,其技术方案要点是包括:安装板、限位锁叉、限位棘爪、解锁驱动机构;解锁驱动机构包括相对可动作的安装座和解锁部,安装座与安装板固定连接,安装座和解锁部之间连接有自复位锁闭结构;限位棘爪包括安装端、作用端和驱动端,驱动端与解锁部转动连接;限位锁叉包括锁叉缺口、自锁台阶、安装部,限位锁叉与安装板之间连接有自复位解锁结构;空载解锁时,响应解锁部的解锁动作,驱动作用端与自锁台阶脱离,锁叉缺口移动至解锁位置;锁闭时,响应于外部裙板组件的锁闭动作,带动锁闭锁叉缺口移动至锁闭位置,作用端与自锁台阶限位连接。
Train evacuation ladder locking device based on ratchet wheel reset self-locking structure
一种基于棘轮复位自锁结构的列车疏散梯锁闭装置
15.04.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
Steering column with adjustable ratchet wheel locking mechanism
Europäisches Patentamt | 2021
|