| 摘要 |
PURPOSE: An overpressure prevention louver system is provided to minimize a facility cost, and to be operated accurately in a blackout. CONSTITUTION: An overpressure prevention louver system comprises an operation blade (210). Multiple operation blades connected to a linkage (310) through a link arm (320) inside a frame (100) are fixed rotatably at the same time. A lock hole (110) is installed at the frame. One end of the link arm is connected to the lock hole in order to circulate the lock hole with the operation blade in a rotary shaft of the operation blade, and the other end of the link arm is connected to the linkage. A latch (400) is fixed to one end of the link arm, and circulates with the link arm. A protruding end is stuck on the lock hole. The latch restricting a circulation of the link arm is equipped. |
