Deflector barrier for smoke and heat vents and a smoke and heat vent provided with said deflector barrier

摘要

The invention is a deflector barrier (1; 60; 70) for smoke and heat vents (2; 67; 77) comprising: a fixed frame (3) applied to the perimeter of an opening (A) made in a wall (P) of a building and communicating with the inside of one or more rooms; a flap (4; 66; 76) provided with a movable sash (5; 68; 78) associated with the fixed frame (3) via hinge means (6) that define a rotation axis (X) for opening and closing the flap (4; 66; 76); operating means (7) suited to rotate the flap (4; 66; 76) around the rotation axis (X); and means (8) for coupling and releasing the movable sash (5; 68; 78) with/from the fixed frame (3). The deflector barrier (1; 60; 70) comprises: a foil-shaped body (10; 64; 74) that can be associated with the movable sash (5; 68; 78) on the opposite side of the rotation axis (X); actuator means (11; 61; 71) that can be associated with the movable sash (5; 68; 78) and are suited to arrange the foil-shaped body (10; 64; 74) in a position projecting from the movable sash (5; 68; 78) when the flap (4; 66; 76) is open; and constraining means (12) that can be associated with the movable sash (5; 68; 78)and interact with the actuator means (11; 61; 71) when the flap (4; 66; 76) is closed in order to retain the foil-shaped body (10; 64; 74) in a backward position with respect to the movable sash (5; 68; 78).