Lock catch with hidden structure and jewelry

The utility model discloses a lock catch with a hidden structure and jewelry. The lock catch comprises a lock body, a lock catch body and a hidden structure, the buckle body is matched with the lock body; wherein the lock body comprises a lock sleeve and a limiting piece, a containing cavity is formed in the top face of the lock sleeve, the buckle body is arranged in the containing cavity and matched with the limiting piece, the limiting piece is fixedly arranged on the side wall of the containing cavity, and a limiting groove matched with the limiting piece is formed in the buckle body; the buckle body is pressed or pulled out, the limiting groove is matched with or separated from the limiting piece to achieve locking or unlocking of the buckle body relative to the limiting piece, the buckle body is arranged in the containing cavity, the buckle body can be hidden in the containing cavity when the buckle body is in the locking or unlocking state, and therefore the whole lock catch is more concise and attracti