| 摘要 |
<p>PURPOSE: A duct apparatus with a sound insulation function is provided to prevent noise generated from other space by closing the internal flow path of the duct apparatus through a soundproofing plate. CONSTITUTION: A duct apparatus with a sound insulation function is installed inside a building and includes a flow path. An indoor duct comprises a soundproof plate(120). Air is moved to one direction to open the flow path of the soundproof plate. When the air is flowed backward or is stopped, the soundproof plate closes the flow path. A hinge hole is formed at both sides of upper part of the flow path and the soundproof plate includes a hinge shaft which is combined with hinge hole.</p> |
