| 摘要 |
A snap-on, easily removable, fluid shut off valve (with pipe and interlocking member) that is useful as a low cost, primary turn off valve for domestic and commercial fluid fixtures and is quickly installed by manual snap-on between the inlet fluid supply and the supply pipe to conventional fixtures such as faucets or the like. The valve comprises a rigid housing having an inlet chamber and an outlet chamber, and a cross-over passage separating the first and second chambers that houses a moveable ball or poppet valve member that is held in the cross-over chamber by a spring retainer. A mechanical plunger or cam device (operable from the exterior of the housing) is disposed within the outlet chamber for contacting and pushing the ball or poppet valve member against the spring retainer, away from the valve seat, to open the valve. The first and second chamber openings receive spiral-shaped spring pipe end retaining members, each having an inside diameter smaller than the outside diameter of the inserted pipe mounted between level bushings. Each spiral-shaped retaining member has radial segments that deform in the direction of the pipe inserted that interlocks the pipe end in each chamber. Cooperating fluid seals prevent leakage.
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