Armrest frame structure of floor shot blasting machine

The utility model relates to a handrail frame structure of a terrace shot blasting machine, which is characterized by comprising a rack and a swing frame, a support sleeve is arranged at the end part of the rack, a support shaft is axially connected in the support sleeve, the support shaft can rotate and axially move relative to the support sleeve, the lower end of the support shaft is supported and fixed at the upper part of a wheel carrier, and the swing frame is arranged on the support shaft. The position, close to the first end, of the swing frame is rotationally hinged to the wheel frame through a first pin shaft, a bearing is rotationally connected to the first end of the swing frame, the rotating axis of the bearing is perpendicular to the axis of the supporting shaft, and the bearing abuts against the lower end face of the supporting sleeve; the handrail frame of the floor shot blasting machine is reasonable in structural design and low in manufacturing cost, and facilitates lifting of the rack when n