Ear piercing instrument

An ear piercing instrument, comprising:

• a base housing, on which a first mounting cavity extending parallel to a stud piercing direction is provided;
• and
• an integrally molded stud piercing housing, which is configured to assemble a stud assembly or a stud and fixedly connected in the first mounting cavity by a third snap;
• wherein the stud piercing housing is provided with a push rod guiding cylinder embedded in the first mounting cavity, and a piercing assembly at least partially located in the push rod guiding cylinder and clamped and positioned by both the stud piercing housing and a bottom wall of the first mounting cavity;
• the piercing assembly further comprising a push rod and a first elastic member capable of exerting a thrust on the push rod towards a stud holder, wherein one end of the first elastic member abuts against a stopper of the push rod while the other end thereof abuts against the bottom wall of the first mounting cavity;
• the ear piercing instrument further comprising a stud holder moving body, configured to mount the stud holder and provided with a first position and a second position in the process of moving towards the base housing;
• wherein the push rod can be triggered to move to a push rod locked position when the stud holder moving body moves to the first position, and to move to a push rod piercing position from the push rod locked position when the stud holder moving body moves to the second position.