| 摘要 |
A stink interception member for sewer is provided to be placed in a drain without a separation installation structure and ascend/descend according to the water level collected in a drain duct to open/close the drain. A stink interception member for sewer is installed in a drain(110) of a drain duct(100) connected to the sewer to open the drain in drainage and close the drain at other times in order to prevent backflow of odor from the sewer. An air housing space is formed inside the member and a housing member surrounds the air housing space airtightly. The member opens or closes the drain by ascending or descending according to water level variation in the drain duct. |
