Adjustable bracketof pipe-bending machine

The invention discloses an adjustable bracket of a pipe-bending machine. The adjustable bracket comprises a base, two sleeving pipes are arranged on the top surface of the base in a parallel mode at an interval, both of the two sleeving pipes are perpendicular to the base, one vertical rod is installed in each of the sleeving pipes in a penetrating mode, the sleeving pipes are in clearance fit with the vertical rods, a locking mechanism which can fix the relative position of each sleeving pipe and vertical rod is arranged between each sleeving pipe and the corresponding vertical rod, through the locking mechanisms, the relative positions of the sleeving pipes and the corresponding vertical rods can be fixed and locked, one connecting rod is hinged to the top of each of the vertical rods, ahandrail sleeves the two connecting rods at the same time, the two connecting rods are both in clearance fit withthe handrail, the included angle between the handrail and the ground can be adjusted to be an oblique angle, an