| 摘要 |
PURPOSE: A washbasin drain valve is provided to maintain a clean condition of a washbasin by facilitating cleaning of the inside of a valve housing. CONSTITUTION: A washbasin drain valve(20) comprises a valve housing(21) and an opening and closing unit(30). The valve housing comprises a through-hole(22) in the center. The opening and closing unit comprises an insertion pipe(31), a space unit(32), and an opening and closing unit(33). The insertion pipe is closely insertable into the through-hole. The space unit is formed at both sides of the insertion pipe. The opening and closing unit opens and closes the space unit. |
