The invention provides a brake pump, and belongs to the technical field of brake equipment. The problem that the single side of an adjusting valve element in an existing booster master cylinder is stressed for a long time is solved. The brake pump comprises a pump body and a piston, the inner end of the piston extends into the pump body, an inner cavity of the pump body is sequentially divided into a brake cavity, an oil supplementing cavity and an oil inlet cavity by the piston, and an opening and closing valve element and an opening and closing spring which can block the oil supplementing cavity and the oil inlet cavity are further arranged in the pump body. The end portion of the inner end of the piston is concaved in the axial direction to form a concave hole, a port of the concave hole is communicated with the brake cavity, a rod-shaped opening and closing piece is arranged in the concave hole in a penetrating mode, sealing is formed between the outer side of the opening and closing piece and the side wall of the concave hole, the opening and closing valve element is arranged in the concave hole, and the opening and closing valve element is arranged in the concave hole. The opening and closing piece can be axially far away from the brake cavity relative to the piston under the action of oil pressure in the brake cavity and push the opening and closing valve element to compress the opening and closing spring. The brake pump has the advantage of uniform stress.
本发明提供了一种制动泵,属于制动设备技术领域。它解决了现有增压总泵中的调节阀芯长时间单侧受力的问题。本制动泵,包括泵体以及内端伸入所述泵体内的活塞,所述泵体内腔被活塞依次分隔为制动腔、补油腔和进油腔,所述泵体内还设置有能将补油腔和进油腔之间阻断的启闭阀芯和启闭弹簧,所述活塞内端的端部沿轴向凹入形成凹孔且该凹孔的端口处与制动腔相连通,所述凹孔内穿设有呈杆状的启闭件,且所述启闭件的外侧与所述凹孔的侧壁之间形成密封,上述启闭阀芯设置于所述凹孔内,所述启闭件能在制动腔内的油压作用下相对于活塞沿轴向远离制动腔并推动所述启闭阀芯压缩启闭弹簧。本制动泵具有受力均匀的优点。
Brake pump
一种制动泵
2024-03-19
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |