NON-DIRECTIONAL SMOKE CONTROL DAMPER

摘要

PURPOSE: A non-directional smoke control damper including a blade advancing device in a chain gear mode is provided to uniformly disperse the air current provided into a front room through the smoke control damper. CONSTITUTION: A non-directional smoke control damper including a blade advancing device in a chain gear mode includes a center blade, outer blades(12), and the blade advancing device. The outer blades are successively arranged around the edge of the center blade. The outer edge of the center blade is overlapped with the edge of an opening on the outer blades. The outer edge of a prior outer blade is overlapped with the edge of the opening on the outer blade on the back. Supporting shafts(110) are penetrating each overlapped parts, and is combined to a shaft combining plate. The blade advancing device includes a motor(M), a rotating wheel, and a chain gear(220). The chain gear moves the center blade.