The invention provides an air supply adjusting valve for a railway wagon, which belongs to the technical field of railway wagons and comprises a valve body, an air inlet hole and an air outlet hole are respectively arranged at two ends of the valve body, an upper cavity and a lower cavity are sequentially arranged in the middle of the valve body from top to bottom, and a valve seat is arranged between the upper cavity and the lower cavity. The middle of the valve seat is provided with a first ventilation hole which is shrunk and then gradually expanded from top to bottom. The air charging valve component is arranged in the upper cavity and comprises a piston and a piston cylinder which are arranged in the upper cavity in a sliding mode, and a first sandwich valve is arranged on the lower portion of the piston; the check valve component is arranged in the lower cavity and comprises a second sandwich valve arranged in the lower cavity in a sliding mode, and the second sandwich valve and the first sandwich valve can block the first ventilation hole from the lower side and the upper side respectively. The air charging speed of the air supply adjusting valve is controlled through the passage diameter of the first ventilation hole, the problem that the air charging speed of an original air supply adjusting valve is difficult to control is solved, and the application reliability and application safety of the air supply adjusting valve are improved.
本发明提供一种铁路货车用给风调整阀,属于铁路货车技术领域,包括:阀体的两端分别设置有进风孔和出风孔,阀体的中部由上至下依次设置有上腔和下腔,上腔和下腔之间设置有阀座,阀座中部设置有由上至下先减缩再渐扩的第一通风孔;充风阀部件设置在上腔内,充风阀部件包括滑动设置在上腔内的活塞和活塞筒,活塞的下部设置有第一夹心阀;止回阀部件设置在下腔内,止回阀部件包括滑动设置在下腔内的第二夹心阀,第二夹心阀和第一夹心阀能够分别从下侧和上侧封堵第一通风孔。利用该第一通风孔的通路直径控制给风调整阀的充风速度,解决了原有给风调整阀充风速度难于控制的问题,提高给风调整阀的运用可靠性和运用安全性。
Air supply adjusting valve for railway wagon
一种铁路货车用给风调整阀
2022-04-15
Patent
Electronic Resource
Chinese
IPC: | F16K VALVES , Ventile / B01D SEPARATION , Trennen / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES |
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