Carbon-free trolley walking by taking gravity as power

The utility model relates to a carbon-free trolley walking with gravity as power, and belongs to the technical field of mechanical design. The device comprises a driving wheel, driving wheel fixing part, rear wheel bearing seat I, rear axle and bottom plate, a driven wheel and a rear wheel bearing seat II; bearing seat I, fastening screw, fastening nut, guide rod I, guide rod II, weight and tripod, a fixed pulley, a fixed pulley shaft, a fixed pulley bearing I, a string, a pinion, a bearing I, a driven wheel bearing, a gearwheel, a bearing II, a reel, a reel shaft, a duplex bearing pedestal, abearing V, a bearing VI, a bearing VIII, a front wheel fixing plate, a front wheel support, a front wheel screw, a front wheel, a bearing IX, a front wheel nut, a fixed pulley bearing II, guide rodsIII. According to the utility model, the two half gears act with the strip-shaped gears in turn, so that the trolley can deflect periodically; structural design is simple, machining is easy, and application and popularization