| 摘要 |
PURPOSE: A coupling device for a pipe connector is provided to easily and firmly perform coupling work by coupling a metal ring, a flange unit, and a pressing ring directly. CONSTITUTION: A coupling device(200) for a pipe connector is composed of a ring-shaped flange unit(210), a metal ring(220), a straight bolt(230), and a nut(240) coupled to the bolt. The flange unit is formed at the end of a head(20), and has a rear vertical surface. The metal ring is installed at the rear surface of the flange unit. The bolt passes through the metal ring, the flange unit, and a pressing ring(80), and couples the metal ring, the flange unit, and the pressing ring directly.
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