The invention relates to the technical field of escalator overspeed safety protection, in particular to a subway escalator safety guarantee device which comprises a guarantee box fixed to the side edge of an escalator, and a main shaft of the escalator penetrates through and extends to an inner cavity of the guarantee box. According to the safety guarantee device for the subway escalator, when the rotating speed of the main shaft exceeds the standard, the input gas amount is larger than the gas output amount of the quantitative exhaust valve, gas is accumulated in the pressurizing box, the air pressure is increased to extrude the pneumatic plate to move, so that the pneumatic plate drives the contact switch to move, then the contact switch is triggered and drives the electric chuck to clamp the main shaft, and step-by-step speed reduction is conducted through friction; after the speed is reduced, the air inflow is reduced, the pneumatic plate is reset, the contact switch is driven to be reset, automatic stopping can be achieved, the situation that sudden deceleration and braking are too fast is prevented, speed reduction can be automatically conducted, automatic resetting can be achieved after speed reduction is completed, detection is conducted through a mechanical structure, and the device is more accurate.

    本发明涉及一种地铁扶梯安全保障装置,包括固定在扶梯侧边的保障箱,所述扶梯的主轴贯穿并延伸至保障箱的内腔,本发明涉及自动扶梯超速安全保护技术领域。该一种地铁扶梯安全保障装置,主轴转速超标的时候,输入的气体量大于定量排气阀的出气量,气体在加压箱内堆积,气压增大挤压气动板运动,使其带动接触式开关运动,然后接触触发,带动电动夹盘对主轴进行夹持,通过摩擦进行逐级减速,并且当速度降低后,此时进气量减少,气动板复位,带动接触式开关复位,可以自动停止,防止急减速刹停过快的情况,可以自动进行降速并且降速完毕后可以自动复位,通过机械结构进行检测,更加精准。


    Access

    Download


    Export, share and cite



    Title :

    Subway escalator safety guarantee device


    Additional title:

    一种地铁扶梯安全保障装置


    Contributors:
    ZHU PINCHANG (author) / MAO YUCHEN (author) / PAN CHUWEN (author) / XIANG QINGLANG (author) / YE JIANXIONG (author)

    Publication date :

    2025-05-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16H Getriebe , GEARING / B66B Aufzüge , ELEVATORS



    Subway escalator cleaning device and working method thereof

    ZHU CUNZHEN / LUO QINGHUI / ZHU ZONGKAI et al. | European Patent Office | 2024

    Free access

    Disinfection device and method for subway escalator handrail

    WU JINLONG | European Patent Office | 2022

    Free access

    Escalator personnel automatic guarantee emergency braking equipment

    ZHAO FANGCHENG | European Patent Office | 2024

    Free access

    ESCALATOR SAFETY DEVICE

    KUMAGAI KAZUAKI | European Patent Office | 2015

    Free access

    Escalator safety device

    HU LIANG / DAI CHENGJIE / ZHAO YONGJIE et al. | European Patent Office | 2020

    Free access