| 摘要 |
A liquid mixing valve includes a handle, a protective cover, a semi-circular cover, a spherical guide body, a water-stop washer, and a base defining a spherical cavity therein communicating with dual water outlet ports, a hot-water inlet port and a cold-water inlet port. By moving a handle, a spherical guide body within the spherical cavity is rotated in order to change the registry of a mixing cavity defined within the body with the cold-water and hot-water inlet ports and with the water outlet ports. Hence, the ratio between the portions of at least one of the water outlet ports and the portions of the cold-water and hot-water inlet ports communicating with the outlet port can be controlled to obtain the desired liquid temperature and volume flow rate. By turning the handle 180 DEG , liquid flows from a different one of the outlet ports. In another embodiment, a guide body with dual mixing cavities is provided to permit direct adjustment and selection of output ports by simple longitudinal movement of the handle. In yet another embodiment, a cover of the base defines a rectangular aperture through which the adjustment handle extends. The handle is moved longitudinally to adjust water volume flow rate. Water temperature is adjusted by rotation of the handle, and the outlet port is selected by rotating the handle 180 DEG . The guide body may define dual mixing cavities to permit selection of fluid outlets by simple rectilinear movement of the adjustment handle.
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