Accompanying infusion support

The utility model relates to an accompanying infusion support which effectively solves the problem that the shape of an existing accompanying infusion support cannot be adjusted when a patient changes the posture. According to the technical scheme, a square-barrel-shaped base with an upward opening is fixed to the rear side of the waistcoat, a supporting rod is arranged in the base, the shape of the supporting rod fits the shape of the back of the human body, the upper end of the supporting rod extends to the position above the shoulders of the waistcoat and is fixedly provided with a trapezoidal block, a groove is formed in the upper end of the trapezoidal block, and a telescopic rod is hinged to the interior of the groove. The telescopic rod can swing back and forth in the groove, a plurality of positioning holes are formed in the left end face and the right end face of the trapezoid block and annularly and evenly distributed around the hinge shaft, a clamping pin is inserted into one positioning hole, a th