SELF-LOCKING HYDRAULIC COUPLING AND METHOD FOR USING IT Russian patent published in 2001 - IPC

FIELD: hydraulics in machine engineering, namely mounting-demounting of hydraulic compensators. SUBSTANCE: coupling includes two semicouplings. In body of each semicoupling there is duct for supplying fluid; in turning of body locking member is mounted with possibility of axial motion and members for fixing semicouplings one relative to another are mounted. Duct of each body opens to cylindrical surface of body turning. Locking member of each semicoupling is in the form of flanged sleeve. In radial gaps between sleeves and turnings sealings are arranged at different sides of duct opening on cylindrical surface of body turning. Sleeve of one semicoupling is provided with hollow pin that may perform axial motion in opening of other sleeve. Radial sealing is arranged between cylindrical surfaces of pin and opening for fluid tightening of radial gap between them. EFFECT: simplified design of highly reliable coupling. 2 cl, 10 dwg