QUICK-RELEASE UNIT Russian patent published in 2018 - IPC F16L37/40 

FIELD: rocket equipment.

SUBSTANCE: invention relates to the field of rocket and space equipment, in particular to the filling and drainage lines undocking devices, and can be used in machine building. In the quick-detachment unit, including the onboard and ground pads with filling nozzles, connected together by a collet with the first collet, with a movable locking sleeve on the ground block and a pneumatic actuator with a piston on the side shoe, the pneumatic actuator body is integrally formed with the second collet of the collet lock, inside which the piston is mounted. In the case of the pneumatic actuator there is installed at least one pyro cartridge, the cavity of which and each subsequent one is connected by one channel to the cavity formed by a spring compressed piston and a second collet, and the other channel with a cavity of the locking and pushing sleeve, while in the hole on the ground shoe under the ground part of the collet lock, on the side of the separation plane, a bore is made, the diameter of which is greater than the outer diameter of the locking and pushing sleeve, and the diameter of the through hole in the ground portion of the collet lock is smaller than the diameter of the inner opening of the locking and pushing sleeve.

EFFECT: ensuring a high reliability of the lock operation in the separation of the onboard and ground blocks.

1 cl, 3 dwg