Sealing structure for a mixing valve of hot and cool water

Abstract

An improved sealing structure for a mixing valve of hot and cool water is disclosed. A first trench with an approximate V shape is formed on the upper surface of the lower wall along the peripheral rim of the water inlets and water outlet and is retained with a proper distance with the peripheral rim of the water inlets and water outlet. A second trench with an approximate inverse V shape is formed on the bottom surface along the peripheral rim of the water inlets and water outlet and is retained with a proper distance with the peripheral rim of the water inlets and water outlet. The shape of the first trench is completely symmetric to the second trench on the lower wall of the casing. A sealing ring is installed between the surface of the lower wall of the casing and the bottom surface of the fixing disk and has a symmetric shape with respect to the aforesaid trenches. Thus, the sealing ring can be engaged with the two trenches. During assembling the aforementioned sealing structure, the fixing disk covers the structure downwards to slightly press the sealing ring so as to be tightly sealed within the trenches, and the sealing ring can be engaged to the trench with a deeper depth so to be positioned therein. The structure of the present invention can be assembled easily.

Dependencies are inferred from the claim text.