Abstract: An intake for quick coupling pipes, to form a joint, including a body defining a central axis and a first channel at least partially centered relative to the central axis to partially house the joint, an annular sealing element movably within the first channel including a plurality of fastening sectors to reciprocally radially move and define release and clamping positions, an extractor partially in the body, movable along the central axis relative to the body and allowing the sealing element to pass from the clamping position to the release position. The body includes an obstruction defining a ring within the first channel. The sealing element defines an interference portion interfering with the obstruction. The obstruction and interference portion form a circular fulcrum around which the fastening sectors rotate and provide the release position as result of opening thrust caused by the extractor or joint passing in the sealing element.

Abstract: Intake for quick coupling pipes, to couple to joint in fluidic connection, including body defining central axis and first channel at least partially centered relative the central axis and suitable to partially house joint, annular sealing element movably housed within first channel including plurality of fastening sectors to reciprocally move in radial direction and defining release and clamping positions, extractor partially housed in body, movable along central axis relative to body and allowing sealing element to pass from clamping to release position. The body includes obstruction defining a ring, centered relative to central axis and housed within first channel. Sealing element defines interference portion interfering with obstruction in direction parallel to central axis.

Abstract: A quick-coupling device for circuits circulating fluids under pressure comprising a socket and a fitting element that can be housed in the socket, the socket including an outer body defining at least part of a first channel and comprising an annular cavity opening on the first channel, a substantially annular constraint element at least partly housed in the annular cavity and movable therein, and including a plurality of constraint sectors made up of circular sectors of the constraint element, moved radially and defining a release position wherein the constraint element is retracted into the groove so as to enable the fitting element moving relative to the socket, and a tightening position at which the constraint element secures the fitting element to the socket, an extractor partly housed in the outer body able to move the constraint element from the tightening position to the release position.

Abstract: A quick-coupling device (1) for circuits for circulation of fluids under pressure comprising a socket (2) and a fitting element (3) that can be housed in the socket, the socket (2) including an outer body (5) defining at least part of a first channel (2d) and comprising an annular cavity (5a) opening on the first channel (2d), a substantially annular constraint element (4) at least partly housed in the annular cavity (5a) and movable therein, and including a plurality of constraint sectors (7) made up of circular sectors of the constraint element (4), adapted to be mutually moved in a radial direction and defining a release position at which the constraint element (4) is retracted into the annular cavity (5a) so as to enable movement of the fitting element (3) relative to the socket (2), and a tightening position at which the constraint element (4) secures the fitting element (3) to the socket (2), an extractor (6) partly housed in the outer body (5) and movable along the central axis (2a) relative to the out