Slope boss portion of fire check valve plate

Abstract

1. The name of this design product: Sloped boss portion of fireproof check valve plate. 2. Purpose of the product with this appearance design: The overall purpose of the product with this appearance design is to be used for a fire check valve, and the purpose of the local appearance design is to be used on the valve plate of the fire check valve. By cooperating with the lever of the fire check valve, the lever can press the valve plate to ensure that the valve plate can be tightly fastened on the smoke exhaust port. 3. The key design point of this design product is to protect the local shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1. 5. Other circumstances that require explanation: This application claims protection for the portion not covered by the blue translucent layer as the portion for which protection is sought.

Images