| 摘要 |
PURPOSE: A device for bad smell reflux prevention from drainage hole is provided to compensate an operating error in spite of long time use. CONSTITUTION: A device for bad smell reflux prevention from drainage hole comprises a supporting part A and a supporting part B. The supporting part A comprises a cylinder supporter, a central axis(2), a dispersion corn(2b) and a hermetic ring. An opening and closing part B comprise an upper hemisphere, a lower hemisphere, a spring and a screwnut. The cylinder support is formed along with a filtering film, a concavo-convex region and a screw part. |
