| 摘要 |
PURPOSE: A screw ring for preventing the noise of a drainpipe is provided to reduce noise since the weight of water is scattered to the bottoms of a plurality of screw rings. CONSTITUTION: A screw ring for preventing the noise of a drainpipe comprises a central rod(2), two screw rings(3a,3b), and a connecting rod(5). The central rod is stood on a lower prop(6). The central rod prevents water from vertically falling. The two screw rings are installed based on the central rod. Since water is scattered along the slope bottoms of the two screw rings and softly flows, noise is reduced. The connecting rod is connected along existing drainpipes(7).
|
