AUTOMATIC CLOSING LOUVER DEVICE FOR FIRE PROTECTION

摘要

PURPOSE: An automatic closing louver device for fire protection is provided to automatically block flames from a lower floor without using electrical energy and enhance thermal energy efficiency by effectively controlling natural lighting depending on the season. CONSTITUTION: An automatic closing louver device for fire protection comprises a control unit(300), a blade(200), an outer frame. The control unit comprises a fuse(330), a front fixing bar(320), a spring(340), and a rear fixing bar(350). The fuse is destroyed by heat at a given temperature. The rear end of the front fixing bar makes tight contact with the fuse and the front end of the front fixing bar is exposed to the outside of a front hollow. The front end of the rear fixing bar makes tight contact with the spring and the rear end of the rear fixing bar is exposed to the outside of a rear hollow.