PIPELINES QUICK DISCONNECT COUPLING Russian patent published in 2009 - IPC F16L37/00 

FIELD: construction, pipeline.

SUBSTANCE: invention pertains to lubrication and cooling systems, connection of additional vehicles and machineries. Quick disconnect pipelines coupling contains concentric to the floor sleeves, male and female one, device for their connection and disconnection and a valve. The valve presents hollow spigot 11 with staged external surface. Diameter of the steps reduces in direction of the other concentric to the floor spigot. Step with the biggest diameter mates external surface of cylindrical boring of the frame, on the end of the spigot there is a boring. Dimensions of the boring make possible accommodation in its middle part of a seal ring on the conic surface of the locking element. The latter has a guiding tail, which goes inside through the central opening of the transverse wall of the spigot axially moving against it. Side windows are made in the part of the spigot adjoining the wall from the other side. Cup washer is installed in the cavity of the spigot. There is a ledge at the end of the shank in the central opening of the cup washer bottom. The string is supported by the butt end of the cup washer.

EFFECT: enhanced air tightness of the device.

6 cl, 4 dwg