The invention relates to a tire inflation and deflation device, and provides a two-way pneumatic control switch valve which comprises a valve body with an inner cavity, a piston rod is slidably mounted at one end of the inner cavity of the valve body, a protruding part is formed at the other end of the inner cavity of the valve body, a piston of the piston rod divides the inner cavity of the valve body into an air chamber and a piston rod chamber, and a first air hole communicated with the air chamber is formed in the valve body. A sealing part is arranged on the end face of the side, close to the air chamber, of the piston, a second air hole communicated with the air chamber is formed in the protruding part, and an elastic piece connected with the piston is arranged in an inner cavity of the valve body so that the sealing part can abut against the protruding part, and an air path between the second air hole and the air chamber can be closed. The pressure of gas in the gas chamber rises to push the piston to move, so that the sealing part is separated from the protruding part, and a gas path between the second gas hole and the gas chamber is opened. According to the two-way pneumatic control switch valve, on the premise that the air tightness of a tire is guaranteed, inflation and deflation of the tire can be achieved through the same air path. In addition, the invention further provides a vehicle tire inflation and deflation system and a vehicle.

    本发明涉及轮胎充放气装置,提供了一种双向气控开关阀,包括具有内腔的阀体,阀体内腔的一端滑动安装有活塞杆、另一端形成有凸起部,活塞杆的活塞将阀体的内腔分隔为气室和活塞杆腔室,阀体形成有与气室相通的第一气孔,活塞靠近气室一侧的端面设置有密封部,凸起部形成有与气室相通的第二气孔,阀体内腔设置有与活塞连接的弹性件,以能够将密封部抵持在凸起部上,关闭第二气孔与气室之间气路;气室内气体压力升高能够推动活塞移动,以将密封部与凸起部分离,开启第二气孔与气室之间气路。本发明双向气控开关阀能够在保障轮胎气密性的前提下,通过同一条气路实现轮胎的充气与放气。另外,本发明还提供了一种车辆轮胎充放气系统和车辆。


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    Title :

    Bidirectional pneumatic control switch valve, vehicle tire inflation and deflation system and vehicle


    Additional title:

    双向气控开关阀、车辆轮胎充放气系统和车辆


    Contributors:
    YE JIANFENG (author) / ZHU JIHONG (author) / DENG ANPEI (author) / HE YUANBAO (author)

    Publication date :

    2024-04-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16K VALVES , Ventile / B60C VEHICLE TYRES , Fahrzeugreifen



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