Enteric hollow capsule

The utility model relates to the technical field of empty capsules, and discloses an enteric empty capsule which comprises a capsule shell A. A capsule shell B is arranged at one end of the capsule shell A. A limiting assembly is arranged at the joint of the capsule shell A and the capsule shell B. The limiting assembly comprises an annular groove, an outer spiral groove and an inner spiral groove. The annular grooves are symmetrically formed in the surfaces of the capsule shell A and the capsule shell B, the outer screw groove is formed in the surface of the bottom of the capsule shell A, the inner screw groove is formed in the inner wall of an opening of the capsule shell B, and the outer screw groove and the inner screw groove are connected with each other. According to the utility model, the stability of the connection between the capsule shell A and the capsule shell B is conveniently improved through the designed limiting assembly, so that solid or liquid medicine in the capsule shell A and the capsule