QUICK-DISCONNECT UNIT Russian patent published in 2012 - IPC F16L37/62 

FIELD: machine building.

SUBSTANCE: quick-disconnect unit includes on-board connection and ground connection with shutoff device installed on it and including collet, shutoff drive sleeve with pneumatic actuator, which is connected to the tightening device. On-board and ground connections are made with common housing which has breaking element in the form of breaking connection strap, and pneumatic actuator is equipped with breaking mechanism made in the form of piston with retractable pins. Energy accumulation mechanism is installed in piston which includes a ball pressed with a spring to retaining slot on collet, and shutoff device is provided with safety stop contacting the breaking connection strap.

EFFECT: tightness of quick-disconnect unit under normal operation and reliability of actuation of shutoff device of quick-disconnect unit at separation of on-board and ground connections.

5 dwg