Patent ID: 6390128
Filing Date: 2002-05-21
Classification: E03C,F16K,Y10T

Abstract:
A cold/hot water switching/controlling valve structure of mono-spout faucet, the switching/controlling valve being received in a cavity of a faucet main body and locked by a locking collar, the switching/controlling valve comprising a valve main body, an adjusting seat, a restricting member, an upper switching/controlling valve, a lower switching/controlling valve and a switching/controlling seat, the valve main body being formed with an internal valve chamber, two sides of the end face of the valve main body respectively having two upward projecting stop blocks, the adjusting seat being inlaid in the valve chamber of the valve main body, the circumference of the adjusting seat being provided with multiple outer engaging teeth at equal intervals, a switching/controlling column upward projecting from the side of the adjusting seat for locking with the faucet handle, a lower end of the switching/controlling column being connected with a linking block, the restricting member being a ring body, an inner circumference thereof being formed with multiple inner engaging teeth at equal intervals for drivingly engaging with the outer engaging teeth of the adjusting seat, two sides of lower end of the restricting member being provided with two downward projecting stop blocks, the upper switching/controlling valve being connected to the lower side of the linking block of the adjusting seat and tightly attached to the lower switching/controlling valve, the center of the rear side of the lower switching/controlling valve being formed with a water outlet, the switching/controlling seat being inlaid in the lower side of the lower switching/controlling valve, a front side of the switching/controlling seat being formed with cold and hot water inlets, a rear side of the switching/controlling seat being formed with a water outlet, the locking collar being formed with a central through hole, a circumference of the lower section of the a locking collar being formed with locking outer thread section which is screwed with the inner thread of the faucet main body, said switching/controlling valve structure being characterized in that a front side of upper end face of the restricting member has an inward extending slide block attaching to the outer edge of top face of the adjusting seat, an upper end of the inner side of the slide block having a projecting drawing plate extending out of the upper end of the locking collar, a center of the bottom face of the upper switching/controlling valve being formed with a longitudinal adjusting slot, one side of the adjusting slot slightly outward extending to form an arch face, the other side of the adjusting slot being a plane face, a front side of the lower switching/controlling valve being formed with a larger arch cold water inlet across the middle, a smaller arch hot water inlet being formed beside the cold water inlet and spaced therefrom by a certain distance, an inner side of the hot water inlet being formed with a plane face, whereby the faucet handle can be detached and via the drawing plate, the restricting member can be directly taken-out for re-adjusting the restricting member to a desired position so as to easily adjust the amount of discharged hot water and whereby when washing hands, a user only needs to upward bias the faucet handle and place the handle at a middle position, so that upper switching/controlling valve is slid forward and the plane face of the adjusting slot is attached to the plane face of the hot water inlet of the upper switching/controlling valve and only the cold water inlet of the lower switching/controlling valve is opened for the cold water to flow out.