The invention discloses a subway pull ring of purifying air and convenient to use, which comprises a fixing sleeve, a pull ring body and a pull belt, the lower end of the fixing sleeve is fixedly connected with a fixing box, a cavity is formed in the fixing box, a tape spring is arranged at the center in the cavity, an opening is formed in the top of the cavity and communicated with the outside, and the pull belt is arranged in the cavity. A sliding cavity is formed in the side, away from the cavity, of the fixing box, the lower end of the sliding cavity communicates with the outside, a fixed plate is fixedly connected to the inner wall of the sliding cavity, and a piston plate is slidably connected to the position, located above the fixed plate, of the sliding cavity in a sealed mode. The pull ring has the advantages that when the pull ring is used by a passenger with insufficient height, the pull ring needs to be pulled to automatically adjust the height of the pull ring, so that the passenger can use the pull ring at the comfortable height of the arm, the passenger is helped to keep stable, the passenger can use the pull ring comfortably, the arm is prevented from being paralyzed due to the fact that the arm is in a straight state all the time, and the safety of the passenger is improved. The subway pull ring is suitable for different passenger groups and is more humanized.

    本发明公开了一种具有净化空气且方便使用的地铁拉环,包括固定套、拉环和拉带,所述固定套下端固定连接有固定盒,所述固定盒内开设有空腔,所述空腔内的位于中心设置有卷尺弹簧,所述空腔的顶部开设有开口与外界连通,所述固定盒远离空腔的一侧开设有滑腔,所述滑腔的下端与外界连通,所述滑腔内墙壁上固定连接有固定板,所述滑腔位于固定板上方密封滑动连接有活塞板。优点在于:本发明对于升高不够的乘客,在使用拉环时,需可拉动拉环自行调节拉环所处高度,使乘客可在手臂舒适的高度使用拉环,既帮助乘客起到保持自身稳定作用,而且让乘客使用舒适,避免手臂一直处于伸直状态而麻痹,适用于不同的乘客人群,更为人性化。


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    Title :

    Subway pull ring capable of purifying air and convenient to use


    Additional title:

    一种具有净化空气且方便使用的地铁拉环


    Contributors:
    YAO XIAOMAO (author)

    Publication date :

    2021-08-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES



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