QUICK-DETACHABLE CONNECTION OF PIPELINES Russian patent published in 2012 - IPC F16L37/28 

FIELD: machine building.

SUBSTANCE: connection includes nozzle and nipple parts which are tightly connected to each other, to the appropriate branch pipes, as well as to control device. Nozzle part includes housing with collar with three slots, and with seat, shutoff element in the form of spring-loaded spool valve with seal, which is installed in support in movable manner. Nipple part includes housing, shutoff element in the form of spool valve with seal, which is connected to pusher and installed in housing in movable manner by means of coupling and sleeve of guide. Coupling is connected to control device; on its cylindrical part included in the housing there are two screw slots ending with straight-line sections, and on the coupling edge there installed are three pins interacting with three slots of housing of nozzle part. Pusher is made in the form of a plate in through hole of which there installed is axis the ends of which protrude beyond the pusher edges and enter screw slots of the coupling. On internal surface of sleeve of the guide there made are two longitudinal slots retaining and guiding the pusher, and in end part of sleeve there installed are three projections with possibility of interaction with slots of housing of nozzle part.

EFFECT: invention provides tightness and reliability of the connection.

4 cl, 3 dwg