| 摘要 |
A cap of a drain pipe with double structure is provided to prevent leak through the cap, and to keep a kitchen clean by shutting off stink and restricting counter flow of pollutant in the drain pipe. A drain pipe(P) is inserted to a lower part of a body(10), and a fitting hole is formed in an upper part of the body to fit a drain hose connected from a sink. A pipe sealing part(20) is inserted between the lower part of the body and the drain pipe to surround the upper part of the drain pipe by integrally forming side sealing plates(22) at both ends of an upper sealing plate(21). A side of the body is stepped, and a recessed part(12) is formed in the lower part of the body to insert the pipe sealing part. The diameter of the bore of the outer side sealing plate is below the outer diameter of the drain pipe, and the inner diameter of the lower part of the body is less than the outer diameter of the outer side sealing plate. The inner diameter of the upper part of the body is less than the outer diameter of the drain pipe. |
