| 摘要 |
An "odorless drain assembly" comprises an outer cylinder (23) with an open top wall, and an inner cylinder (21); said outer cylinder (23) is connected with the inner cylinder (21) by a common base (22); and a gap (D) is formed in between; said outer cylinder (23) is extended with an outer edge curled down and around as a lip portion (24); and a perforated sleeve (30) covers up said inner cylinder (21) with an open bottom wall extended with an outer edge curled up (U-shape) and around as a stopper ring (31). The diameter of said perforated sleeve (30) is larger than the inner cylinder (21) but smaller than the outer cylinder (23); thereby separate inner gap (D1) and outer gap (D2) are divided from the gap (D); further a plurality of pores (32) formed at the lower half portion of a side wall of the perforated sleeve (30).
|
