Blade fastening type smoke exhaust fireproof valve

Abstract

The invention belongs to the technical field of fire fighting fireproof valves, and particularly relates to a blade fastening type smoke exhaust fireproof valve. The blade fastening type smoke exhaustfireproof valve comprises a valve body, a first rotating blade, a second rotating blade, a transmission part, a moving part, a temperature sensor and a controller. According to the blade fastening type smoke exhaust fireproof valve, the controller controls the moving part to work, so that a second reverse buckling structure and a first reverse buckling structure are buckled, the second rotating blade and the first rotating blade are connected into a whole, therefore, the smoke exhaust fireproof valve has good shock resistance, and the service life of the smoke exhaust fireproof valve is prolonged; and meanwhile, through the buckling of the second reverse buckling structure and the first reverse buckling structure, good sealing performance between the second rotating blade and the first rotating blade is fully guaranteed, therefore, the requirement of the smoke exhaust fireproof valve for the amount of smoke leakage is better met, and the smoke exhaust fireproof valve can better meet the use requirements of users.

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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