| 摘要 |
<p>An overflow drainage device for sinks comprises a spillway mouth (9a) associated to one of the holes (R2) formed on the upper horizontal plane (L1) of the sink to fit in the water-tap units (7), and a drain pipe (2) connected by water-tight fittings, at the top to said spillway mouth (9a) and at the bottom to the sink drain. Said spillway mouth (9a) consists of a circumferential port formed between the edge of said hole (R2) in the sink and the outer surface of a tubular pipe fitting (9) inserted into said hole (R2) and forming a through slot for a tap unit (7). <IMAGE></p> |
