Explosion-proof beer bottle protective cover

The utility model relates to a protective cover for preventing a beer bottle from exploding to injure a person. The utility model is characterized in that a cover body is a hollow sleeve body has definite elastoplasticity, the upper end of the cover body is provided with an extension mouth of a mouth of the beer bottle, and the lower end of the cover body is provided with a crossing mouth for the beer bottle and the body of the beer bottle. The caliber of the crossing mouth for the mouth of the beer bottle and the body of the beer bottle is slightly smaller than the caliber of the bottom of the beer bottle, and the cover body is sheathed on the beer bottle which can not naturally loosen out of the cover body. Once the beer bottle explodes, exploding fragments of the beer bottle are blocked to fly out because the beer bottle is covered by the protective cover, and thus the beer bottle is effectively prevented from exploding to injure the human body.