Safety device for opening or closing door for securing entry of undesired penetrations, has right and left support rails provided with screws and draw-bore pins, where device is assisted by presence detector alarm

摘要

The device has a compact safety telescopic unit (2), an upper closing crosspiece (7), a lower maintaining crosspiece (5), guides, and right and left support rails (1) that are provided with screws and draw-bore pins, where the device is assisted by a presence detector alarm. The support rails are installed on outer or inner wall panels of the doors, where the device is made of aluminum. The support rails are pierced with rail fixation holes.