Pipe clamp with threaded connection and adjustable pipe diameters

The utility model discloses a pipe clamp with threaded connection and adjustable pipe diameters. The pipe clamp comprises a pipe clamp plate, wherein the lower part of the section of the pipe clamp plate is an arc-shaped plate; both sides of the arc-shaped plate are connected with side plates which are parallel to each other; the side plates on both sides of the arc-shaped plate and side edges of a connecting plate are fixedly connected through bolts; a central hole is formed at the middle position above the connecting plate; a stud passes through the central hole; the lower end of the stud is fixedly connected with a pipe platen; an upper nut is arranged above the connecting plate on the stud, and a lower nut is arranged below the connecting plate; and the pipe platen is arc-shaped and is arranged opposite to the arc-shaped plate. Intermediate transition parts are eliminated during the installation, so that installation steps are simplified, the installation time is saved, and the cost of the transition parts is also saved; and pipes with various diameters can be clamped and fixed through the adjustment of the pipe platen.