Patent ID: 7261125
Filing Date: 2007-08-28
Classification: F16L,Y10T

Abstract:
1. A valve assembly for liquid containers, comprising: a base having a hollow casing and a first valve piece movably received in the hollow casing, a first seat extending radially inward from an inner periphery of the hollow casing so as to define a first chamber and a second chamber in the hollow casing, the first valve piece including a first valve body which includes a hollow first tubular body at one end thereof and a first head on the other end of the hollow first valve body, the first tubular body having a first flange at a distal end thereof and a plurality of first slots defined through a wall of the first tubular body, a first groove defined in an outer periphery of the first head and a first seal engaged with the first groove, a first spring mounted on the first valve body and biased between the first flange and the first seat, the first seat located between the first spring in the first chamber and the first head in the second chamber, two connection rings connected to an outside of the hollow casing; a connector unit having a second seat therein and a second valve piece movably received in the connector unit, the second valve piece including a second valve body which includes a hollow second tubular body at one end thereof and a second head on the other end of the hollow second valve body, the second tubular body having a second flange at a distal end thereof and a plurality of second slots defined through a wall of the second tubular body, a second groove defined in an outer periphery of the second head and a second seal engaged with the second groove, the connector unit having inward ribs located therein and a second spring biased between the second head and the inward ribs, the second spring and the second head both located on one of two sides of the second seat, and a locking member including a C-shaped collar and two locking pieces connected to the C-shaped collar, the C-shaped collar rotatably mounted on the connector unit and the two locking pieces extending through the connection rings and hooked on the bodies of the connection rings.