Cart for carbon dioxide fire extinguisher and fire extinguisher

The trolley comprises a bottom plate, rear wheels, a supporting piece, a weighing assembly and a display screen, the two rear wheels are arranged at the left end and the right end of the rear portion of the bottom plate, the supporting piece is arranged below the front side of the bottom plate, the weighing assembly comprises a platform scale arranged on the bottom plate, and a tank body of the carbon dioxide fire extinguisher is weighed by the platform scale. The display screen can receive and display the weight information. Therefore, when a worker checks the air leakage condition of the carbon dioxide fire extinguisher, whether the carbon dioxide fire extinguisher leaks or not can be judged only by placing the trolley on the flat ground, starting the platform scale to weigh the weight of the carbon dioxide fire extinguisher and comparing the weight information with the carbon dioxide filling amount recorded on the fire extinguisher, and the operation is very simple, convenient and safe. Based on the same i