| 摘要 |
A quick connect coupling for connecting a tube to a body having a stepped bore formed therethrough. The coupling includes a sleeve which is press fit in the bore. The inner surface of the sleeve has a cylindrical portion, a radially outwardly extending frusto-conical portion, and an internal shoulder defined therebetween. A collet is disposed within the sleeve having a boss portion which is slightly smaller than the inner diameter of the cylindrical portion sleeve. The boss portion supports and guides the collet for co-axial movement relative to the sleeve. The collet further includes an enlarged end portion having an external shoulder and a extending frusto-conical surface. The frusto-conical collet surface is disposed within the frusto-conical sleeve surface. The tube is inserted within the coupling within the collet. When it is attempted to move the tube out of the body, the frusto-conical collet surface engages the frusto-conical sleeve surface of the sleeve. Also, the external collet shoulder engages the internal sleeve shoulder. As a result, the collet (and the tube engaged thereby) are positively retained within the coupling and the body.
|
