| 摘要 |
The present invention is an improved quick connect coupling of the type having a clip, a port having an interior annular groove adapted to support the clip, a forward cylinder, a rear cylinder, and a first transition ramp, and defines a port peak distance. The coupling is also of the type having a sealing element. Additionally, the coupling is of the type having a stem having a male connection portion including a forward annular seal groove adapted to receive the sealing element, an annular lead-in surface, a leading support cylindrical surface, a following support cylindrical surface, a camming ramp, and defines a stem peak distance. It is improved by the port having an intermediate cylinder between the forward cylinder and the rear cylinder and having a second transition ramp between the forward cylinder and the intermediate cylinder and by the male connection portion having a centering ramp and an intermediate support cylindrical surface between the leading support cylindrical surface and the following support cylindrical surface.
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