Patent ID: 6513549
Filing Date: 2003-02-04
Classification: A47K,F16L

Abstract:
A plug structure of a liquid drainage installation for being installed into a hole formed in the liquid drainage installation, the plug structure comprising:a first half body; a sealing ring, mounted on said first half body, and having an outer periphery protruding outward from an outer periphery of said first half body; and a second half body, combined with said first half body and pressed on said sealing ring, for adjusting a dimension of said outer periphery of said sealing ring protruding outward from said outer periphery of said first half body and an outer periphery of said second half body; wherein, said first half body, said sealing ring and said second half body are combined with each other integrally to form an assembly which is capable of rotating from a substantially horizontal state for closing the hole to a substantially vertical state for opening the hole, with the assembly at least partially contained in the hole, wherein said outer periphery of said sealing ring completely contacts the hole at said substantially horizontal state, and said outer periphery of said sealing ring partially contacts the hole at said substantially vertical state.