A blade buckle type smoke exhaust fire damper

Abstract

The invention belongs to the technical field of fire-fighting fire dampers, and specifically relates to a leaf fastening type smoke-exhaust fire damper, which includes a valve body, a No. 1 rotating blade, a No. 2 rotating blade, transmission parts, moving parts, a temperature sensor and a controller; In the present invention, the controller controls the work of the moving parts, and then realizes the buckling of the No. 2 undercut structure and the No. 1 undercut structure, and then realizes the connection of the No. 2 rotating blade and the No. 1 rotating blade into a whole, and then makes the smoke exhaust The fire damper has good impact resistance, thereby improving the service life of the smoke exhaust fire damper; at the same time, the buckle between the No. 2 undercut structure and the No. 1 undercut structure also fully ensures the safety of the No. 2 rotating blade and the No. 1 rotating blade. There is a good seal between them, which can better meet the requirements of the smoke exhaust fire damper on the amount of smoke leakage, and then make the smoke exhaust fire damper better meet the user's requirements.

Description

technical field [0001] The invention belongs to the technical field of fire-fighting and fire dampers, in particular to a blade fastening type smoke exhaust fire damper. Background technique [0002] Most of the existing buildings are equipped with shared exhaust ducts, and the kitchens and toilets on each floor are connected to the shared exhaust ducts respectively. There is a check valve. At the same time, in order to prevent fires in other floors, the smoke and fire in the shared exhaust duct will be poured into the home room. The national standard also requires that a smoke exhaust damper be installed in this part. When a fire occurs in other rooms, it will automatically close. valves to prevent the spread of fire. [0003] The smoke exhaust fire damper in the prior art is closed by turning and closing the blades, but the strength of the blades is low, and it is easy to bend and deform in actual use, which leads to the failure of sealing and closing between the blades, ...

AI Technical Summary

Problems solved by technology

The present invention is mainly used to solve the problem that the blades of the smoke exhaust fire damper in the prior art are prone to bending and deformation due to the low strength of the blades, which leads to the inability of the blades to be sealed and closed, thereby resulting in the poor sealing effect of the smoke exhaust fire damper

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