Valve plate with protective sleeve

The valve plate comprises a valve plate body, a shaft hole is formed in the valve plate body, the protective sleeve is arranged on the valve plate body, the protective sleeve comprises an upper rubber sheet and a lower rubber sheet which are located on the two sides of the valve plate body, a through hole is formed in the upper rubber sheet, and a through hole is formed in the lower rubber sheet. A clamping piece is fixedly connected to the side face of the side, close to the valve plate body, of the lower rubber sheet and comprises a rubber column vertically and fixedly connected to the lower rubber sheet and a clamping rubber head fixedly connected to the end, away from the lower rubber sheet, of the rubber column. The rubber column penetrates through the shaft hole and the through hole, and the clamping rubber head abuts against the side face of the side, away from the valve plate body, of the upper rubber sheet. The air valve has the advantages that damage caused before the valve plate is installed on the