| 摘要 |
To couple a giving end of a first pipe and an receiving end of a second pipe, the device contains a rubber ring, a tubular screw, a C-shaped ring, and a rubber washer. The C-shaped ring is embedded in a groove of the giving end of the first pipe which is threaded through the rubber ring, the tubular screw and the rubber washer and is plugged into the receiving end of second pipe. Inside the tubular screw, the diameter is gradually shrunk to form a born-shaped space with a slant wall. When the tubular screw is screwed into the receiving end of the second pipe, the slant wall forces the C-shaped ring, and thereby the giving end of the first pipe, to gradually advance. In the mean time, the bottom of the tubular screw presses the rubber washer tightly against the second pipe to effectively prevent leakage.
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