Valve hole and protection sheet assembly of tire flap

The utility model discloses a valve hole and protection sheet assembly of a tire flap. The valve hole and protection sheet assembly of the tire flap comprises a valve hole in the tire flap and a protection sheet mounted on the valve hole, wherein a circular counter bore concentric to the valve hole is formed in the valve hole position on the inner surface of the flap; the inner diameter of the circular counter bore is greater than that of the valve hole; a turned edge is arranged in a hole of the protection sheet in a sleeving manner and is tightly fastened in the circular counter bore. Compared with the prior art, the valve hole and protection sheet assembly of the tire flap has the advantages that the valve hole is the counter bore; after the protection sheet is combined with the valve hole, a protrusion is not formed in the inner surface of the flap; a positioning device is arranged on the counter bore of the flap, so that after the protection sheet is mounted, and the position is fixed; requirements for continuous operation of the subsequent process are met, and adjustment can be performed without the consumption of labor and material resources.