Reinforcing type plastic metal sealing strip for bullet

The utility model discloses a reinforcing type plastic metal sealing strip for a bullet. The reinforcing type plastic metal sealing strip for the bullet comprises a metal lock cylinder and a metal lock rod, wherein the metal lock cylinder is packaged in a plastic lock case, one end of the metal lock rod is wrapped in an ABS plastic outer covering piece, a conical lock head is arranged at the other end of the metal lock rod, an annular groove is formed in the position where the metal lock rod is connected with the conical lock head, and a clamping spring matched with the annular groove is arranged in the metal lock cylinder; a step-shaped protrusion is formed at the end, close to the conical lock head, of the ABS plastic outer covering piece, a lock rod base is arranged at the other end of the ABS plastic outer covering piece, the lock rod base is fixedly connected with the plastic lock case, and a step-shaped groove matched with the step-shaped protrusion is formed in the position of an opening of the plastic lock base; the bottom surface of the lock rod base and the bottom surface of the plastic lock shell are located on the same plane, and a chamfer is arranged at the position of the opening of the plastic lock case. According to the reinforcing type plastic metal sealing strip for the bullet, reliable clamping between metal is achieved after the lock head enters the lock cylinder, the metal lock rod and the plastic lock case are buckled together by means of the step-shaped protrusion and the step-shaped groove, and the stability and safety of products are greatly improved.