QUICK-RELEASE CONNECTION OF PIPE-LINES Russian patent published in 2004 - IPC

FIELD: mechanical engineering. SUBSTANCE: quick-releasable connection includes embraced and embracing parts. Embraced part has spring-loaded shut-off valve. Annular groove runs in longitudinal direction of variable section. Bushing of embraced part is enclosed in protective spring-loaded bushing. The latter is made of elastic material. Protective bushing shuts off section of annular groove in inoperative condition. Length of protective bushing of embraced part is chosen on condition of its penetration into space formed by metal cap under working position of connection. Central part of one solid face surface comes in the form of protrusion. Central part of another solid face surface comes in the form of cavity accommodating above-mentioned protrusion. EFFECT: raised reliability and quick connection of pipe-lines. 1 cl, 2 dwg