| 摘要 |
The present invention relates to a drain trap which drains, through a drainpipe, water that flows through a filter cover mounted on the upper part. The invention comprises: a body frame having a frame formation unit, which is extensively formed on the upper part of a joint pipe unit extended to the lower part for insertion into a drainpipe, which provides a water storage, and which has a settlement groove in which a filter cover is settled, wherein the body frame has, in a ring-type settlement ridge that is protruded to the central part along the inner surface of the joint pipe unit, a reservoir hole which is inserted into the lower part and is formed as a closed track such that the portion of drained water is received therein; a residual drainage container having a first flange settled on the ring-type settlement ridge, and a reservoir body part which is extended to the lower part from the first flange such that the bottom part thereof is closed to a certain height from the bottom surface in order to receive water therein and which has, on a lateral side, drainage windows opened separately from each other along a circumferential direction, wherein the residual drainage container has, on the lower side of the first flange, a ring-type odor prevention protrusion which has a narrower width than the width of the reservoir hole, which enters the reservoir hole, and which is extended to the lower part such that the extended protrusion is flooded with water reserved in the reservoir hole; and a second flange which is settled on the upper side of the first flange, and a drainage inducing container which enters the residual drainage container from the second flange and is extended longer than the lower end of the drainage windows of the residual drainage container in order to guide drainage. According to the drain trap for preventing odor, the odor caused by a back flow can be prevented through a watertight method even between a support part of the body frame and the residual drainage container, which is a water-sealing element detachably combined with the body frame. |
