Coaxial connector

The utility model relates to a coaxial connector including an inner conductor, an insulator and an outer shell. The inner conductor is arranged in the inner cavity of the outer shell and is connected with the outer shell through the insulator. The tail part of the outer shell is also sleeved with a barrel. The tail part of the outer shell is provided with threads corresponding to the barrel. A first blocking ring on the barrel, a rubber sealing ring, a blocking ring on the outer shell and a second blocking ring on the barrel are arranged from the head part to the tail part of the outer shell successively. The first blocking ring and the second blocking ring on the barrel face the inner side of the barrel. The blocking ring on the outer shell faces the outer side of the barrel. The rubber sealing ring is arranged between the blocking ring on the outer shell and the first blocking ring on the barrel. The coaxial connector provided by the utility model can realize a function of enabling rotation and adjustment o