Liquid injection structure and electronic cigarette

The utility model relates to the technical field of electronic atomization, in particular to a liquid injection structure and an electronic cigarette, which comprise a shell, a suction nozzle and a sealing gasket, a storage cavity is arranged in the shell, one end of the shell is provided with a liquid injection end, the liquid injection end is provided with a liquid injection hole and an air passage, one end of the liquid injection hole is communicated to the storage cavity, the air passage extends towards the air passage, and the sealing gasket is arranged in the storage cavity. The liquid injection end is provided with a first sealing flange on the outer edge of the liquid injection hole; the suction nozzle is provided with a buckling cavity, the buckling cavity is detachably buckled at the liquid injection end, the buckling cavity is provided with a pressing column and an air nozzle, the pressing column corresponds to the liquid injection hole, and one end of the air nozzle is communicated with the air ch