DETACHABLE JOINT Russian patent published in 2013 - IPC F16L37/00 

FIELD: machine building.

SUBSTANCE: detachable joint includes on-board and detachable connections, ball lock with spring-loaded bushing and rod. Ball lock with spring-loaded bushing and rod is arranged in detachable housing between detachable connections; one of them is rigidly fixed in housing and the other one is with a gap providing axial and radial movement upon mating of detachable joint. In housing of on-board connection there installed is pneumatic actuator and trapeziform groove for lock balls, and rod of pneumatic actuator is provided with a limit stop interacting with its cover during detachment. During mating of detachable joint there is a gap between rods of pneumatic drive and ball lock; for the purpose of complete separation pneumatic drive rod stroke is larger than that of ball lock, on threaded part of which installed is a limit stop interaction during manual detachment with a nut moving along threaded part of ball lock, which duplicates manual detachment during interaction with the limit stop.

EFFECT: improving reliability of detachment under impact of side loads on connections of detachable joint.