QUICK-RELEASE UNIT Russian patent published in 2001 - IPC

FIELD: rocket-space and mechanical engineering, applicable for separation of interunit pneumohydraulic service lines. SUBSTANCE: the quick-release unit consists of pneumohydraulic service lines located in the on-board and ground blocks connected by a pneumatic lock with packing members. Positioned inside one or several pneumohydraulic service lines is a locking device in the form of a collet rigidly fastened on the on-board block, and a movable bush with a gripped stop installed inside the ground block for restricted movement in the axial direction. A closed chamber connected to the atmosphere is formed between the end of the movable bush, internal wall of the ground block and piston of the newly introduced spring-loaded check valve. The sectional area of the closed chamber exceeds the sectional area of the collet surface engageable with the packing member of the ground block. The check valve is newly introduced in the on-board block. EFFECT: reduced dimensions of the lock and respectively reduced dimensions of the whole unit, which results in reduction of its mass and enhanced convenience of operation with a construction of smaller overall dimensions. 3 dwg