Shutter

• Main Authors: YAN ZENGMIN, WEI GUOYING
• Format: Patent
• Language: Chinese; English
• Published: 27.11.2013
• Subjects: DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; LADDERS

The utility model discloses a shutter. The shutter comprises an upper fixed beam, a lower movable beam, a plurality of parallel shutter hinges, a lifting drawing wire and a lifting traction wire connected with the lifting drawing wire. The shutter further comprises at least two pairs of edge traction wires passing through the two sides of each shutter hinge and fixed on the shutter hinges, a rotating shaft connected with the edge traction wires, at least two middle traction wires passing through the middle of each shutter hinge and fixed on the shutter hinges, a middle drawing wire connected with the middle traction wires and a balance weight movable beam, wherein the shutter hinges are of hinge types, and the shutter can be in the shielding and ventilating state when the shutter hinges become the shapes of reversed V under the upward traction action of the middle traction wires. The shutter aims to overcome the defects in the prior art and can both perform shielding and ensure the good ventilation effect.