A parking brake device for a vehicle comprises an air pocket, a first hand-operated directional valve, an energy accumulator, a first pneumatic operated directional valve, a parking brake, a parking brake oil cylinder, a flameout air cylinder, a second hand-operated directional valve, a second pneumatic operated directional valve and a third pneumatic operated directional valve. An execution portof the first hand-operated directional valve is respectively communicated with a first air inlet of the second pneumatic operated directional valve, a control port of the second pneumatic operated directional valve and a second air inlet of the third pneumatic operated directional valve; an execution port of the second pneumatic operated directional valve is communicated with a rodless cavity of the flameout cylinder; an execution port of the second hand-operated directional valve is communicated with a second air inlet of the second pneumatic operated directionak valve, a control port of thethird pneumatic operated directional valve and a first air inlet of the third pneumatic operated directional valve, and an execution port of the third pneumatic operated directional valve is communicated with a pneumatic control port K of the first pneumatic operated directional valve. when flameout occurs in the cab at the front end part and the cab at the rear end part of the vehicle, the vehicle can be automatically stopped and braked.
一种车辆的停车制动装置,包括气包、第一手动换向阀、蓄能器、第一气控换向阀、停车制动器、停车制动油缸、熄火气缸、第二手动换向阀、第二气控换向阀和第三气控换向阀;第一手动换向阀的执行口分别与第二气控换向阀的第一进气口、第二气控换向阀的控制口和第三气控换向阀的第二进气口连通;第二气控换向阀的执行口与熄火气缸的无杆腔连通;第二手动换向阀的执行口分别与第二气控换向阀的第二进气口、第三气控换向阀的控制口和第三气控换向阀的第一进气口连通,第三气控换向阀的执行口与第一气控换向阀的气控口K连通。本发明可实现在车辆的前端部的驾驶室内和后端部的驾驶室内熄火时均能使车辆自动具有停车制动。
Parking brake device for vehicle
车辆的停车制动装置
2020-10-16
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |