Adjusting air valve blade

The utility model discloses an adjusting air valve blade, including air valve blade body and connecting rod, the intermediate position on air valve blade body one side top is equipped with the spreadgroove, the one end of connecting rod be fixed with with spread groove assorted connecting portion, and connecting portion and spread groove pass through bolt fixed connection, one side that the spread groove was kept away from to the air valve blade body evenly is equipped with two degressive reinforcing edge of diameter, the 3rd reinforcing edge and a reinforcing edge, and the outside edge of air valve blade body has offered ring groove, and the inside demountable installation of draw -in groove has polytetrafluoroethylene fibre sealing strip. The utility model discloses a setting up the airvalve blade body adjusting air valve replacement of ya keli material originally of metal material, thoroughly having solved the cracked problem of blast gate use meeting, the effect of the wind of adjusting air valve accuse s