| 摘要 |
The present invention relates to a drainage trap device which is installed on a drainage system to prevent the backflow of odors, harmful gases, and pests from a lower drain pipe. The drainage trap device according to the present invention includes: a body unit storing water and is connected to an external pipe; a cap unit which forms a part of a first space storing the water in the body unit; and a filter unit which is installed in the body unit to guide the water entering through the external pipe to the water storage area while filtering the foriegn substance in the water. The body unit, a cap unit, and a filter unit can be attached together or detached from each other. |
