The invention belongs to the field of tunnels, and particularly relates to a tunnel piston pressure relief device. The device is characterized in that a plurality of supporting rods are slidably connected into a supporting ring at equal intervals, one ends of the supporting rods extend to the outer side of the supporting ring and are fixedly provided with a same buffer ring, and a plurality of supporting shafts are symmetrically and rotationally connected into the buffer ring; and the bottom ends of the plurality of supporting shafts extend to the position below the buffer ring, two transmission racks are symmetrically connected to the bottom of the buffer ring in a sliding mode and are in transmission connection, rotating gears are fixedly installed at the bottom ends of the supporting shafts, the transmission racks are engaged with the multiple rotating gears located on the same side correspondingly, and the supporting shafts are fixedly sleeved with flow guide plates located in thebuffer ring. According to the device, when a train enters a tunnel, two-stage buffer damping can be achieved on generated strong air flow, so that the air speed is effectively reduced, good protectioncan be provided when the train enters the tunnel, and good safety is achieved.

    本发明属于隧道领域,尤其涉及一种隧道活塞泄压装置,支撑环内等间距滑动连接有多个支撑杆,且多个支撑杆的一端均延伸至支撑环的外侧并固定安装有同一个缓冲环,缓冲环内对称转动连接有多个支撑轴,且多个支撑轴的底端均延伸至缓冲环的下方,缓冲环的底部对称滑动连接有两个传动齿条,两个传动齿条传动连接,支撑轴的底端固定安装有转动齿轮,且传动齿条分别与位于同一侧的多个转动齿轮相啮合,支撑轴上固定套设有位于缓冲环内的导流板,本发明能够在列车进入隧道时,对产生的较强的风流实现两级缓冲减震,以此能够有效的降低风速,所以能够在列车进入隧道时提供良好的保护,具有良好的安全性。


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    Title :

    Tunnel piston pressure relief device


    Additional title:

    一种隧道活塞泄压装置


    Contributors:
    QU QIFANG (author)

    Publication date :

    2021-01-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    E21F Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels , SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS / B61B RAILWAY SYSTEMS , Eisenbahnanlagen



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