Laboratory standard gas cylinder transfer trolley

The utility model discloses a laboratory standard gas cylinder transfer trolley which comprises a trolley frame and a bracket installed on the trolley frame, wheels are installed at the bottom of thetrolley frame, the bracket comprises a horizontal bottom plate used for bearing a standard gas cylinder, a lifting mechanism connected with the bracket is installed on the trolley frame, and the lifting mechanism is used for lifting the bracket to enable the bottom plate to descend to be close to the ground when the standard gas cylinder is loaded and unloaded. Bottom plate is higher than wheels during transportation. When the standard gas cylinder needs to be loaded and unloaded, the lifting mechanism drives the bracket to descend, so that the bottom plate descends to be close to the ground,the standard gas cylinder is convenient to rotate and move up and down, the bracket is driven to ascend after loading is completed, the bottom plate ascends to be higher than the wheels, manual pulling walking and entering of