Dougherty & Troxell
Assembling structure for balance valve of cold/hot water mixing valve
 An assembling structure for balance valve of cold/hot water mixing valve. The assembling structure includes a mixing valve cartridge a bottom wall of which is formed with a lower balance valve cavity above the cold and hot water incoming holes thereof, and a circular balance valve cover board formed with cold and hot water incoming holes and mixing water outgoing hole corresponding to the water holes of the cartridge. A lower surface of the balance valve cover board is formed with an upper balance valve cavity at the cold and hot water incoming holes thereof. The lower surface of the balance valve cover board is further formed with a sealing groove along the edges of the mixing water outgoing hole and the upper balance valve cavity. When the balance valve cover board is fixedly rested on the upper surface of the bottom wall of the cartridge, the cover board via a balance valve seal is sealedly positioned in the sealing groove and pressed by the bottom wall of the cartridge. Accordingly, the lower and upper balance valve cavities together form a leakproof space in which the balance valve is fixedly sealedly accommodated. In assembling procedure, the respective components are accurately located to facilitate the assembling operation. 
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Chia-Bo
Chang