Bending testing machine for corrugated pipe

The utility model relates to a corrugated pipe bending testing machine which comprises a mounting frame, a top plate fixedly connected to the top end of one side of the mounting frame, a lifting assembly arranged at the bottom of the top plate, a lifting plate arranged below the lifting assembly, a fixing rod fixedly connected to the bottom of the lifting plate, and a first roller rotationally connected to the bottom end of the fixing rod. Rotating rods are rotationally connected to the bottom of the lifting plate and located on the two sides of the fixed rod, second rollers are rotationally connected to the bottom ends of the rotating rods, electric telescopic rods are rotationally connected to the two ends of the bottom of the lifting plate, one end of a movable rod of each electric telescopic rod is rotationally connected with one side of the corresponding rotating rod, and a stabilizing assembly is further arranged at the bottom of the lifting plate; two fixing plates are fixedly connected to one side of