Patent ID: 8491015

Claim:
A socket ( 2 ) for a quick-coupling device ( 1 ) for circuits carrying fluids under pressure, said quick-coupling device ( 1 ) comprising a fitting element ( 3 ) including a second channel ( 3 b ), said socket ( 2 ) has a central axis ( 2 a ), a first channel ( 2 d ) internal to said socket ( 2 ), and an inlet ( 2 c ) of said first channel ( 2 d ); said first channel ( 2 d ) being designed to house securely said fitting element ( 3 ) and being brought into fluid communication with said second channel ( 3 b ); said socket ( 2 ) comprises an outer body ( 5 ) defining at least part of said first channel ( 2 d ) and comprising an annular cavity ( 5 a ) opening on said first channel ( 2 d ), a substantially annular locking element ( 4 ) at least partially housed inside said annular cavity ( 5 a ) and movable within said cavity, said locking element ( 4 ) comprises a plurality of locking sectors ( 7 ) consisting of sectors of a circular ring which are designed to be mutually moved in a radial direction from a release position at which said locking element ( 4 ) is retracted inside said annular cavity ( 5 a ) in such a manner as to enable movement of said fitting element ( 3 ) relative to said socket ( 2 ), to a locking position at which said locking element ( 4 ) tightly secures said fitting element ( 3 ) to said socket ( 2 ), an extractor ( 6 ) comprising a plurality of angled teeth ( 6 a ) each of them inserted between each pair of locking sectors ( 7 ), used to maintain a minimum distance between each pair of locking sectors ( 7 ); said extractor ( 6 ) is partly housed inside said outer body ( 5 ) and movable along said central axis ( 2 a ) relative to said outer body ( 5 ), to displace said locking element ( 4 ) from said locking position to said release position; said socket ( 2 ) further comprising a spring ( 8 ) which positions said locking element ( 4 ) to said release position in the absence of counter-forces.