| 摘要 |
PURPOSE: A piping hanger for an earthquake-proof, capable of preventing the damage to pipes by absorbing the impact of the earthquake, is provided to prevent damage to roof pipe and facility by earthquake. CONSTITUTION: A piping hanger for an earthquake-proof comprises top and bottom cases(20,21), a hemispherical rotary nut(40) and a hemispherical rotary coupler(50). The top and bottom cases are connected with one another in a longitudinal direction. The bottom case slides in the top case in a vertical direction using a spring(30). The hemispherical rotary nut is installed in a perforated hole of the top case.
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