Combined type supporting frame

The utility model discloses a combined type supporting frame, which relates to the technical field of constructional engineering instruments and comprises a supporting steel pipe, one side of the outer side wall of the supporting steel pipe is fixedly connected with a fixing rod, and the other side of the outer side wall of the supporting steel pipe is fixedly connected with a rotating ring. Through the arrangement of the rotating nut and the L-shaped groove, firstly, a steel pipe needing to be installed is inserted into the first connecting piece, the fixing rod slides into the first connecting piece along the first groove, then the steel pipe is rotated to enable the fixing rod to enter the L-shaped groove, then the rotating nut is rotated to enable the rotating nut to rotate on the rotating ring, and the rotating nut can move forwards; and therefore, the situation that a steel pipe is fixed through a bolt and a connecting piece by using a tool is prevented, and the potential safety hazard of high-altitude