| 摘要 |
PURPOSE: A sleeve for preventing noise and bad smell generated between stories is provided to reduce damage of noise by blocking the noise completely and to prevent damage of bad smell. CONSTITUTION: A sleeve for preventing noise and bad smell generated between stories comprises an insertion pipe (20) and a shielding unit (13). The insertion pipe for is combined with the upper and the lower part of a connection sleeve (10). The shielding unit is mounted on the inside of a connection pipe (12) to which a discharge pipe (21) is connected, and automatically opened and closed according to discharge of sewage. The shielding unit is configured to have a noise absorption pipe (14) and a shielding cover (15) which are connected with each other by a connection unit. |
