| 摘要 |
PURPOSE: A connection structure of a constrictor for a pipe connecting socket is provided to firmly connect pipes by forming a fitting protrusion at the socket. CONSTITUTION: A protrusion unit(7) is fit into a fitting groove(8) formed at one side of a socket(1), and has an incline unit therein. A fitting protrusion(13) is formed at a constrictor(10,11) to correspond to the protrusion, and is coupled to the fitting groove at a protrusion side when pipes are connected.
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