The invention relates to the technical field of braking equipment, and discloses a vacuum booster for automobile braking. The vacuum booster comprises a cavity. According to the vacuum booster for automobile braking, hydraulic oil is communicated with an extrusion sliding groove hole, and a communicating hole of the hydraulic oil and the extrusion sliding groove is located in the end face of the extrusion sliding groove and is staggered with a pressure stabilizing groove, so that after an air valve moves to the leftmost end of the extrusion sliding groove for braking, the position is not changed after a foot steps to the stroke, and the braking force is not changed; the valve seat continues to move leftwards under the pressure difference of the two sides of a diaphragm to extrude the hydraulic oil to increase the pressure, a pump rod is kept still, the pressure in the hydraulic oil enters the extrusion sliding groove to impact the left side end face of the air valve, force counteracts on the valve seat, the leftward moving speed of the valve seat is increased, then it is guaranteed that while the pump rod does not move, the air valve can quickly seal an air channel, and the problems that after an existing rubber reaction disc on the right side of the pump rod is used for a long time, elastic restoring force disappears, and the air channel is closed slowly are solved.

    本发明涉及制动设备技术领域,且公开了一种汽车制动用真空助力器,包括腔体。该汽车制动用真空助力器,通过液压油与挤压滑槽孔连通,且液压油与挤压滑槽的联通孔位于挤压滑槽的端面与稳压槽的位置相错,使得空气阀在移动到挤压滑槽最左端进行制动后,为保证脚踩到行程后位置不变,其制动力也不变,阀座在膜片两侧压差下继续向左移动,挤压液压油增大压力,泵杆为保持不动,液压油内压力进入到挤压滑槽内,冲击空气阀左侧端面,力反作用到阀座上,加大阀座向左移动的速度,进而保证泵杆不移动的同时,空气阀能够快速将空气通道封闭,解决了现有的泵杆右侧的橡胶反作用盘长时间使用后弹性恢复力消失,空气通道关闭慢。


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    Titel :

    Vacuum booster for automobile braking


    Weitere Titelangaben:

    一种汽车制动用真空助力器


    Beteiligte:
    GAO XIAOMING (Autor:in)

    Erscheinungsdatum :

    2021-06-01


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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