Bottle cap capable of being automatically damaged

The utility model discloses a bottle cap capable of being automatically destroyed, which comprises a bottle opening, an annular wall is arranged on the outer surface of the bottle opening, a threaded strip is fixedly connected with the outer surface of the bottle opening close to the annular wall, a threaded groove is arranged on the inner wall of the annular wall close to the bottle opening, and a destroying mechanism is arranged on the top of the inner wall of the annular wall. A top cover is arranged at the top of the annular wall, a plurality of clamping blocks are fixedly connected to the position, close to the annular wall, of the bottom of the top cover, a plurality of clamping openings are formed in the position, close to the top cover, of the top of the annular wall, and the clamping blocks are matched with the clamping openings; through the arrangement of the destroying mechanism, the top of a bottle cap is destroyed and opened in the using process of the device, containers with bottle caps needing