Horizontal bend capable of adjusting expansion

The utility model discloses a horizontal bend capable of adjusting capacity expansion. The device comprises a first frame and a second frame, and a second frame is arranged on the rear side of the first frame, adjusting assemblies are installed in the left sides and the right sides of the first frame and the second frame, the first rotating shaft is in threaded connection with the supporting rods,third sleeves are fixedly connected to the left end and the right end of the inner side of the first frame, and the third sleeves are in clearance fit with the first rotating shaft. The utility modeldiscloses an adjustable expansion horizontal bend. Structure is scientific and reasonable, safe and convenient use, a transmission assembly and an adjusting assembly are arranged. The device comprises a first frame, a second rotating shaft, a first bevel gear and a second bevel gear, when adjustment and capacity expansion are needed, the second rotating shaft can be rotated, the threads on the outer wall of the first rota