| 摘要 |
A quick connect/disconnect coupling assembly includes: (a) a female coupling member including a cavity opening onto its receiving end, where the cavity has an annular groove; (b) a male coupling member including an annular rib, where the rib has a tapered leading edge, a trailing edge and a maximum diameter between the leading and trailing edges; (c) a diametrically expandable locking ring carried in the annular groove of the female coupling member, where the locking ring has an unexpanded inner diameter that is less than the maximum diameter of the annular rib on the male coupling member, and where the locking ring is diametrically expandable to have an inner diameter that is slightly larger than the maximum diameter of the annular rib on the male coupling member; (d) a dial carried for rotation in the male coupling member; and (e) a mechanical actuator carried on the male coupling member operatively coupled to the dial such that the mechanical actuator extends radially outwardly with respect to the male coupling member upon rotation of the dial in a first direction, to a radial height at least approximately equal to a radial height of the annular rib at a maximum diameter of the annular rib, and retracts inwardly with respect to the male coupling member upon rotation of the dial in an opposite direction. Accordingly, upon insertion of the male coupling member into the cavity of the female coupling member, the tapered leading edge of the annular rib on the male coupling member contacts an inner surface of the locking ring, which causes the locking ring to diametrically expand as the annular rib passes through the locking ring. Upon passing the trailing edge of the annular rib, the locking ring contracts again and is maintained in a locking position between the trailing edge of the annular rib and the receiving side edge of the annular groove. The male coupling member may be removed again from the female coupling member by rotating the dial in the first direction so that the mechanical actuator projects radially outwardly and contacts the inner surface of the locking ring, causing the locking ring to diametrically expand again so that the annular rib of the male coupling member may pass again by the locking ring.
|
