Device for controlling closing sequence of double-wing fire protection door, has rotating rod whose projection surface is provided with fixed and movable wings by projection surface of slide rings, and locking part supported on rail

摘要

The device has a rotating rod (5) rotated around a longitudinal axis and running along a sliding rail (1), where pivoting movement of the rotating rod is directly provided by pivoting movement of a swivel arm (2) of a fixed wing. A projection surface of the rotating rod is provided with the fixed wing and a movable wing by a projection surface of slide rings (2.1, 3.1) when the projection surface of the rotating rod is projected perpendicular to a longitudinal direction of the sliding rail. A locking part (4) is supported on the sliding rail against movement of the sliding rail.