| 摘要 |
A liquid dosing unit for providing detergent to a WC suit is provided. The liquid dosing unit comprises a dosing piping (120, 220) having two open ends (140a, 140b), of which at least one open end (140a) is connecting to an outlet valve (130) of the WC suit, and a water trap (110, 210) arranged between said two open ends (140a, 140b) at a position vertically above said open ends (140a, 140b). The water trap (110, 210) of the dosing piping (120, 220) is configured to enclose detergent, and when the outlet valve (130) is opened for flushing the WC suit, air entrapped in said dosing piping (120, 220) will push detergent arranged at the water trap (110, 210) to flow out from one of said open ends (140a, 140b). |
