BALL JOINT FOR THE SEALED ASSEMBLY OF TWO PIPE ELEMENTS

摘要

P The ball joint is of the type where the male end (1) of a first channeling element (2) is provided with a spherical bead (5) intended to come to pivotally engage in a profile housing spherical (11) adapted which is provided with the socket (3) of axis YY of a second pipe element (4), with the interposition of an annular seal (16) made of elastomer housed in an annular groove ( 15) of the internal wall of the socket (3). The groove (15) is arranged and shaped in such a way that it constitutes an expansion chamber for the elastomer of the lining (16) when the spherical bead (5) is pressed into the socket (3) and ensures, in the nested position, the support of the lining (16) on the rear part of the bead (5) located beyond the maximum diameter of said bead (5) taken in a direction perpendicular to the axis YY of the socket (3), the seal (16) then being subjected to residual radial compression which guarantees the tightness of the assembly and simultaneously prevents the pipe elements (2, 4) from coming apart. /P