| 摘要 |
An airtight blade valve device for exhausting dust includes two faceplates, two side plates, plural threaded rods, a rotor and a speed-reducing motor. The two faceplates and the two side plates are assembled together by the threaded rods to make up a closed casing having an inlet and an outlet. The rotor is pivotally fitted between the two faceplates, consisting of a spindle and plural blades, and the spindle has a plurality of cut surfaces for the blades to be respectively secured thereon. Each blade has its peripheral edge respectively contact closely with the faceplate and the side plate to form closed spaces. At least one blade of the rotor will contact the arcuate portion of either of the two side plates when the rotor rotates to any position. Thus, the blades are rotated, exhausting out dust in an airtight condition.
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