| 摘要 |
<p>The utility model relates to an integrated relay valve used in the air brake service brake pipeline and parking brake pipeline of the vehicle, in particular to an integrated valve with double relay valves, which is integrated by a service relay valve and a parking relay valve or differential relay valve, wherein the integrated valve contains a hand valve interface, a main valve interface, a gas supply and storage tank interface, a piston, valves, a plurality of cavities and other structures; the main valve interface is communicated with a cavity A; the hand valve interface is communicated with a cavity B; the gas supply and storage tank interface is separated from a cavity C through a valve and is also separated from a cavity D through another valve; and the pressure of the air entering the cavities of the valve body is utilized to control the movement of the piston so as to open or close the integrated valve. By adopting the integrated structure of the double relay valves, the intake and exhaust time of the brake chamber can be shortened, the gas flow for controlling the valve can be reduced, the integration level of the vehicle air brake system can be increased, the connections of the pipelines can be reduced, and the safety and reliability of the operation of the brake system can be increased. When the service relay valve is integrated with the differential relay valve, the integrated valve also has the function of preventing double braking.</p> |
