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This is a new type of faucet to control the dropping time and amount of water flow. It is based on the timing button, a simple gadget, of the washing machine. The maximum rotation angle is 180°, at which water exit will last for 20 seconds. In general case, users revolve the knob above the faucet for less than 90° and on this occasion, water exit will last for 5 seconds proportionally. Users have no need to worry about whether the water stream energy is clean after finishing washing hands. Thus, people will have the consciousness for water saving.
Beihang University
Beijing, China