Focusing ring and constraint ring two-in-one lens barrel

The utility model relates to the technical field of lens cones, in particular to a focusing ring and constraint ring two-in-one lens cone which comprises a lens cone body, and the lens cone body is sequentially sleeved with a camera connector, a two-in-one function ring and an installation ring from top to bottom. The two-in-one functional ring comprises a bottom ring; wherein the upper part of the bottom ring is sleeved with a focusing ring, the focusing ring is rotatably connected with the lens barrel, the lower part of the bottom ring is provided with a first constraint ring belt and a second constraint ring belt, the first constraint ring belt is provided with a screw hole, the second constraint ring belt is provided with a counterbore, the counterbore is provided with a through hole,and the two-in-one functional ring further comprises a screw which penetrates through the through hole. According to the utility model, the structure is simplified, the focusing function and the constraint function are integr