| 摘要 |
An air vent is provided to close a duct dually and to improve the sealing effect by using a pad to be overlapped on the inside surface and protruding part of the duct. An air vent(100) comprises a duct(110), a first damper(120), a second damper(130), and a rotary shaft(140). The first damper is equipped inside the duct, and the second damper is arranged in a line with the first damper. The rotary shaft is arranged between the first damper and the second damper and couples the dampers to the duct. At least one of the first and second dampers is equipped with a pad(150) pressed onto the duct.
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