| 摘要 |
PURPOSE: A coupler for connecting pipes is provided to reduce working hours and to firmly fix the pipes by easily connecting/disconnecting the pipes. CONSTITUTION: A coupler for connecting pipes is composed of a pipe-shaped jaw coupling(10) having a spiral hole(14), and a rotary body(20) coupled to the outer circumference of the jaw coupling. A jaw(11) is integrally installed at one end of the jaw coupling, and fixes the pipes. A protrusion member is formed at the inner circumference of the rotary body, and is coupled to the spiral hole. And, the protrusion member slides along the spiral hole by the rotation of the rotary body, and presses the jaw into the central point.
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