| 摘要 |
A branch duct having damper structure is provided to branch off the air to a branch port and an outlet port and to easily check and confirm the air induction and the branching. A branch duct having damper structure comprises an inlet(11), an outlet(12), a branch port(13), a branch duct assembling unit(21) and a damper member. The damper member is consisting of a damper(25) and a damper assembling unit(30). The damper is inserted inside the branch duct. The assembling unit is inserted within the damper assembling unit through the branch duct assembling unit in order to rotate along with the damper. The assembling unit has a screw unit(32) and a head unit(31). The screw unit is formed in the assembling unit leading end to be fixed with an assembling nut(35). The head unit has a pointer(31a). A scale unit(15) is formed on the upper part of the branching duct around the assembling unit to correspond to the pointer. The opening and shutting location of the damper is controlled with the graduations position which the pointer indicates according to the rotation of the assembling unit.
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