US 4,790,571 AGranted

Quick-coupling connector group for pipes, piles or the like

AssigneeRiva Calzoni S.p.A.

InventorsPaolo Montanari, Oneglio Sala

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Abstract

The quick-coupling connector assembly for pipes, piles or the like is constituted of a pair of half-couplers, male and female respectively, capable of being connected to the ends of the pipe to be joined. The male half-coupler possess, on its external surface, an annular raised profile capable of being coupled with a corresponding annular raised profile present on the internal surface of the female half-coupler close to its end, the female half-coupler being equipped, starting from its end, wih axial slits defining, along its entire surface, a plurality of outwardly elastically flexible lamellar elements, adapted to permit the fitting of the female half-coupler over the male half-coupler and the coupling together of the respective raised annular profiles. An axially movable ring is also provided, capable of being fitted over the female half-coupler and of being blocked in position for preventing radial deformations at the end of zone of the female half-coupler itself.

Claims12

Dependent claims

A quick-coupling assembly for joining together two tubular members, said assembly comprising:

a male half-coupler connected to one of said tubular members and comprising:
a tubular body having a free end forming an axial-abutment surface,
a tubular portion formed on said body and extending away from said axial abutment surface toward said one of said tubular members, and
an external raised annular profile formed on said body adjacent said tubular portion;
a female half-coupler connected to the other of said tubular members and receiving said tubular portion and said external annular raised profile, said female half-coupler being formed with:
a multiplicity of axially extending slits running to a free end of said female half-coupler and defining outwardly deflectable flexible lamellar elements,
internally of said female half-coupler on said lamellar elements and close to said free end of said female half-coupler, formations matingly interlockable with said external raised profile whereby said flexible lamellar elements are outwardly deflected upon axial fitting of said male half-coupler into said female half-coupler until said formations interlock with said external raised profile, and
spaced axially inwardly of said formations, an annular inwardly extending axial-abutment surface abuttingly engageable with said axial-abutment surface on said free end of said body;
and
an axially movable ring mounted on one of said half-couplers and having an internal diameter equal to an external diameter of said female half-couplers in a zone thereof provided with said formations in an undeflected state of said lamellar elements, said ring being shiftable over said zone to prevent radial deformation of said female half-coupler at said free end thereof and secure said joint.

7 more elements

Dependencies are inferred from the claim text.