| 摘要 |
A duct fixing device is provided to simplify the fixing of a ventilation duct to a ceiling in close contact with the duct fixing device, thereby removing vibration and noise due to air flow. A fixing part(10) is fixed to a ceiling by a fixing element. A connection part(20) is folded downward from the fixing part, wherein upper and lower supporting plates(30,40) are extended integrally from the connection part for supporting a ventilation duct(100). At least one or more holding protrusions(32) in the wedge shape are formed on a lower surface of the upper supporting plate. |
