Oxygen tank cart

The oxygen tank cart comprises a frame, the frame comprises a supporting plate, the left side and the right side of the top face of the supporting plate are each provided with a fixing rod at equal intervals, the oxygen tank cart further comprises a fixing assembly for bearing and fixing an oxygen tank, the two fixing rods are sleeved with the fixing assembly, and the shape of the fixing assembly is matched with the outer wall of the oxygen tank; a guide rod is arranged on the fixing rod, an adjusting wheel assembly for adjusting the height of the frame is arranged on the guide rod in a sleeved mode, and the adjusting wheel assembly can slide and be fixed along the guide rod. According to the cart, the oxygen tank is supported and fixed through the fixing assembly, the supporting piece on the fixing assembly moves downwards under the action of gravity to drive the traction ring and the connecting belt to move, and finally the pressing rod on the rotating shaft is driven to swing and press the surface of the o