INSERT COUPLER FOR HOSE AND PIPE Russian patent published in 2009 - IPC F16L37/12 

FIELD: mechanics.

SUBSTANCE: proposed device comprises sleeve with inner and outer walls in between which the hose can be inserted and compressed on the sleeve one side. The sleeve opposite side features the first annular groove. There is an open spring connecting ring passing over the arc exceeding 180° and designed to be locked on both the sleeve and pipe. Seal ring is arranged between the sleeve and pipe. The said connected ring represents flat spring ring with flanges directed inward on its both peripheral edges. The flanges of one peripheral edge can enter the first annular groove to be engaged with it. The flanges of the other peripheral edge can extend to behind the lock rib on the pipe to be engaged with it. Aforesaid seal ring is fitted in the second annular ring confined by the sleeve inner wall and that of the first annular groove. Note that the pipe end section can be inserted into the sleeve.

EFFECT: compact design, ability to sustain higher axial loads.

12 cl, 7 dwg