Anti-deformation sound insulation sponge for automobile spare tire plate

The utility model relates to the technical field of automobile spare tire plates, in particular to an anti-deformation sound insulation sponge for an automobile spare tire plate, which comprises a spare tire cover plate, a base matched with the bottom end of the spare tire cover plate, an anti-deformation mechanism arranged in the base, a sound insulation sponge main body arranged in the base and close to the bottom end, and a rubber layer arranged outside the sound insulation sponge main body. According to the utility model, the installation assembly is adopted, and the rubber layer is additionally arranged outside the conventional sound insulation sponge, so that the friction force of the contact surface of the sound insulation sponge and the base is enhanced, and the sound insulation effect of the sound insulation sponge is enhanced; and the buffer springs improve the anti-deformation performance of the sound insulation sponge to a greater extent, so that the sound insulation sponge can reset in time when