Telescopic circumferential type people-on construction riding track

A cubic outer frame and a cubic inner frame which are matched with each other are formed by cross beams and stand columns, the inner frame is in sliding fit with the outer frame, a motor is fixedly installed on the outer frame, a gear installed on an output shaft of the motor is matched with a vertical rack arranged on the inner frame, and the vertical rack is arranged on the inner frame. The upper portion of one side in an inner frame is fixedly connected with a second step plate, the lower portion of one side in the inner frame is horizontally and fixedly connected with a third telescopic rod, and the front end of the third telescopic rod is fixedly connected with a fifth telescopic rod. The lower end of the fifth telescopic rod is in sliding fit with the bottom face of the inner frame, and the upper end of the fifth telescopic rod is hinged to the lower end of the upper supporting rod of the lower ladder frame. The riding track is reasonable in structure, the height of the riding track is changed and finel