Fluid joint

Claim 1

A fluid joint for joining two tubes, comprising: a male member having a longitudinally extending through passage, said male member including a cylindrical part, a frusto-conical part and a tubular part, said parts being coaxially united in this order, said frusto-conical part being arranged with its concical surface facing towards said cylindrical part and said tubular part being adapted to connect with one of the two tubes; a female member having a longitudinally extending through passage, said female member including a cylindrical receptacle part sized to snugly receive therein the cylindrical part of said male member and an outer tubular part coaxially united with said receptacle part and projected outwardly therefrom, said outer tubular part being adapted to connect with the other of the two tubes; locking means for locking, upon coupling therebetween, said male and female members together while permitting relative rotation about the axis of the same; releasing means for disabling said locking means when actuated; and sealing means for sealing a clearance which may be defined between said cylindrical part of said male member and said cylindrical receptacle part of said female member when these two members are coupled; wherein said locking means comprises a pair of locking pawls which are integrally formed on the diametrically opposed portions of said cylindrical receptacle part of said female member, said locking pawls being projected inwardly of said receptacle part and, upon proper coupling of said male member and female member, lockingly engaged with an outer peripheral portion of said frusto-conical part of the male member; and wherein said releasing means comprises a pair of lugs which are integrally formed on said cylindrical receptacle part of the female member and extend diagonally outwardly from said diametrically opposed portions where said locking pawls are positioned respectively.