Abstract: The present invention is applicable to the technical field of electronic cigarettes, which provides an oil leakage proof electronic cigarette with replaceable atomizing core, including a cigarette holder, a housing, and a cartridge and a power supply unit arranged in the housing; the cigarette holder is detachably arranged at one end of the housing; the end of the housing away from the cigarette holder is provided with an air inlet; the cartridge includes a casing of the cartridge, an atomizing assembly provided in the housing, and a first end cover and a second end cover provided at both ends of the casing of the cartridge. The second end cover is provided with a first electrode circuit board, and both the first end cover and the second end cover are provided with air-guiding hole structures.

Abstract: The present invention is applicable to the technical field of electronic cigarettes, which provides an oil leakage proof electronic cigarette with replaceable atomizing core, including a cigarette holder, a housing, and a cartridge and a power supply unit arranged in the housing; the cigarette holder is detachably arranged at one end of the housing; the end of the housing away from the cigarette holder is provided with an air inlet; the cartridge includes a casing of the cartridge, an atomizing assembly provided in the housing, and a first end cover and a second end cover provided at both ends of the casing of the cartridge. The second end cover is provided with a first electrode circuit board, and both the first end cover and the second end cover are provided with air-guiding hole structures.

Abstract: The present disclosure relates to an atomizer and an electronic cigarette. The atomizer includes a liquid reservoir, an atomizing core and a mouthpiece. The liquid reservoir is provided with an liquid storage cavity and an accommodating channel, and the accommodating channel is in communication with the liquid storage cavity; the atomizing core is movably disposed in the accommodating channel, and the atomizing core is in communication with the liquid storage cavity; the mouthpiece is movably disposed in the accommodating channel, the mouthpiece is movably abutted against the atomizing core, and the mouthpiece is configured to push the atomizing core out of the accommodating channel and movably block the liquid storage cavity.

Abstract: A dual-extrusion electronic cigarette includes a housing and a dual-extrusion structure installed in the housing. The dual-extrusion structure includes an atomizer seat, a tee tube, three conduits and two oil bottles, and a positive electrode core is connected to the bottom of the atomizer seat and insulated from the atomizer seat. The positive electrode core is a hollow structure with a lower end communicated to the tee tube through the conduit, and the two oil bottles are connected to the tee tube through the conduit. With a simple and convenient squeeze of the oil bottle, the cigarette oil is pumped into the atomizer seat through the atomizer for its use.