| 摘要 |
PURPOSE: A two-way ventilation type soundproof wall has compact composition by simplifying an installation structure and allows a user to conveniently control a critical point of a wind pressure for opening the soundproof wall. CONSTITUTION: A two-way ventilation type soundproof wall includes a soundproof wall pillar, a soundproof plate, and a ventilation control device. The soundproof plate is rotatably connected to a side surface of the soundproof wall pillar. The ventilation control device converts the rotary motion of the soundproof plate into a direct motion by being connected to the side surface of the soundproof plate with a shaft (112) so that the soundproof plate is able to rotate. The ventilation control device supplies elastic restitution on the displacement of the direction motion and returns the soundproof plate which is rotated to the initial position. |
