A double oil tank electronic cigarette

Abstract

The utility model provides a double oil tank electronic cigarette, including a cigarette cartridge body, an external oil tank and a connecting mechanism, the cigarette cartridge body includes a main body oil cup, a side wall of one side of the oil cup is provided with two oil cup connecting holes arranged up and down, a side wall of one side of the external oil tank is provided with two oil tank connecting holes arranged up and down, the connecting mechanism includes a bracket and two connecting pipes, the two ends of the connecting pipe can be respectively adapted to the oil cup connecting hole and the oil tank connecting hole, the end face of the connecting pipe adapted to the oil cup connecting hole is a closed surface, the side wall of the connecting pipe close to the closed surface is provided with a first connecting side hole, the side wall of the connecting pipe away from the closed surface is provided with an annular protrusion, when the external oil tank is connected to the connecting mechanism, the outer edge of the oil tank connecting hole can press the annular protrusion to make the connecting pipe move toward one end of the oil cup connecting hole. The utility model realizes the automatic connection and closure of the external oil tank and the main body oil cup through a spring mechanism. The dual-channel oil-gas exchange ensures smooth oil filling and no oil leakage.

Description

Technical Field

[0001] The utility model relates to the field of electronic cigarettes, in particular to an electronic cigarette with double oil tanks. Background Art

[0002] The electronic cigarettes with external oil tanks currently on the market have some major problems in connecting the external oil tanks with the oil circuit of the main body oil cup. The oil circuit is blocked due to the poor exchange of air pressure in the two chambers. The use of a manual pressurized oil delivery mechanism or the addition of a vortex motor to deliver oil will cause oil leakage due to the high air pressure in the chamber. The structure is complex, the cost is high, and the reliability is poor. Utility Model Content

[0003] In order to solve the problems in the prior art of poor oil circuit connection between the external oil tank and the main oil cup and easy oil leakage through pressurization, the utility model provides a dual-oil tank electronic cigarette with dual channels that can realize oil and gas exchange to ensure smooth oil circuit connection between the external oil tank and the main oil cup.

[0004] The utility model provides a double-oil tank electronic cigarette, including a cigarette cartridge body, an external oil tank and a connecting mechanism, the cigarette cartridge body including a main body oil cup and an atomizing core assembly arranged in the main body oil cup, the side wall of one side of the oil cup is provided with two oil cup connecting holes arranged up and down, the side wall of one side of the external oil tank is provided with two oil tank connecting holes arranged up and down, the connecting mechanism includes a bracket and two connecting tubes fixed to the bracket and capable of moving left and right, the two ends of the connecting tube can be respectively adapted to the oil cup connecting hole and the oil tank connecting hole, the end face of the connecting tube adapted to the oil cup connecting hole is a closed face, the side wall of one end of the connecting tube close to the closed face is provided with a first connecting side hole, and the side wall of one end of the connecting tube away from the closed face is provided with an annular protrusion, when the external oil tank is connected to the connecting mechanism, the outer edge of the oil tank connecting hole can press the annular protrusion to make the connecting tube move toward one end of the oil cup connecting hole.

[0005] As a further improvement of the utility model, the bracket is provided with two horizontal through holes arranged up and down, a cover plate is provided at one end of the through hole, a through hole corresponding to the position of the through hole is provided on the cover plate, a limiting step is provided on the inner side of the other end of the through hole, the two connecting pipes are respectively passed through the two horizontal through holes, an annular limiting plate adapted to the limiting step is provided at one end of the annular protrusion close to the first connecting side hole, a coil spring is sleeved on the connecting pipe, and the coil spring is arranged between the annular limiting plate and the cover plate.

[0006] As a further improvement of the present invention, a sealing silicone ring is provided in the oil cup communicating hole and the oil tank communicating hole.

[0007] As a further improvement of the utility model, a sealing copper ring is further provided in the oil tank connecting hole, and the end face of the sealing copper ring close to the inside of the external oil tank is a closed surface, and the side wall of the sealing copper ring close to the closed surface is provided with a second connecting side hole, and the end of the sealing copper ring away from the closed surface can be connected to the connecting pipe.

[0008] As a further improvement of the present invention, the dual-oil tank electronic cigarette also includes a cigarette rod assembly, which includes a shell and a PCBA board assembly and a battery arranged in the shell. The upper end of the shell is provided with a first accommodating cavity for inserting the cigarette cartridge body and the connecting mechanism and a accommodating groove for inserting the external oil tank. The atomization core assembly includes a heating core electrically connected to the PCBA board assembly.

[0009] As a further improvement of the present invention, a second accommodating cavity is further provided in the shell at the lower end of the first accommodating cavity and the accommodating groove, and the PCBA board assembly and the battery are placed in the second accommodating cavity.

[0010] As a further improvement of the present invention, a snap-fit ​​structure is provided between the bottom of the external oil tank and the containing groove and between the upper end of the external oil tank and the upper end of the bracket.

[0011] As a further improvement of the present invention, the bracket is fixedly connected to the outer side of the cigarette cartridge body by screws.

[0012] As a further improvement of the utility model, a toggle air regulating valve capable of adjusting the suction resistance is provided at the bottom of the shell.

[0013] As a further improvement of the present invention, the PCBA board assembly includes a PCBA circuit board and a microphone assembly and a charging interface electrically connected to the PCBA circuit board, and a mounting hole adapted to the charging interface is provided at the bottom of the shell.

[0014] The beneficial effects of the utility model are as follows: the utility model realizes dual-channel oil and gas exchange by automatically connecting and closing the external oil tank and the main body oil cup through a spring mechanism; when there is no external oil tank, the oil cup connecting hole of the main body oil cup automatically closes to form a seal to avoid oil leakage; when the external oil tank is connected, the external oil tank and the main body oil cup are automatically connected and oil and gas exchange is realized, thereby ensuring smooth oil filling and preventing oil leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a double oil tank electronic cigarette of the utility model;

[0016] Figure 2 yes Figure 1 A schematic diagram of the structure from another angle;

[0017] Figure 3 This is a schematic diagram of the exploded structure of a double oil tank electronic cigarette of the utility model;

[0018] Figure 4 This is a schematic diagram of the exploded structure of a double oil tank electronic cigarette from another angle of the utility model;

[0019] Figure 5 This is a schematic diagram of the exploded structure of a connecting mechanism of a double oil tank electronic cigarette of the utility model;

[0020] Figure 6 It is a cross-sectional view of a connecting mechanism of a double oil tank electronic cigarette of the utility model;

[0021] Figure 7 This is a cross-sectional view of a double-oil-tank electronic cigarette of the utility model with the external oil tank not connected;

[0022] Figure 8 It is a cross-sectional view of the access to an external oil tank of a double oil tank electronic cigarette of the utility model.

[0023] Figure markings: 1-cartridge body; 2-external oil tank; 3-connecting mechanism; 4-cigarette rod assembly; 5-air inlet; 6-slide air regulating valve; 7-charging interface; 8-battery; 9-PCBA circuit board; 11-main body oil cup; 12-oil cup connecting hole; 13, 22-sealing silicone ring; 21-oil tank connecting hole; 23-sealing copper ring; 24-buckle structure; 231-second connecting side hole; 31-bracket; 32-connecting pipe; 33-cover plate; 34-helical spring; 321-annular protrusion; 322-annular limiting plate; 323-first connecting side hole. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that if there are descriptions involving orientation, such as orientations or positional relationships indicated by up, down, front, back, left, and right, the orientation description may be based on the orientation or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0025] In the description of the utility model, if there is a description of quantity, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of first or second, it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] like Figures 1 to 8 As shown, the utility model discloses a dual-oil tank electronic cigarette, including a cartridge body 1, an external oil tank 2 and a connecting mechanism 3, the cartridge body 1 includes a main body oil cup 11 and an atomizing core assembly arranged in the main body oil cup 11, one side wall of the oil cup is provided with two oil cup connecting holes 12 arranged up and down, one side wall of the external oil tank 2 is provided with two oil tank connecting holes 21 arranged up and down, the connecting mechanism 3 includes a bracket 31 and two connecting pipes 32 fixed on the bracket 31 and capable of moving left and right, and the two ends of the connecting pipe 32 can be respectively connected to the The oil cup connecting hole 12 and the oil tank connecting hole 21 are adapted, and the end face of the connecting tube 32 adapted to the oil cup connecting hole 12 is a closed face, and the side wall of the connecting tube 32 at one end close to the closed face is provided with a first connecting side hole 323, and the side wall of the connecting tube 32 at one end away from the closed face is provided with an annular protrusion 321, when the external oil tank 2 is connected to the connecting mechanism 3, the outer edge of the oil tank connecting hole 21 can press the annular protrusion 321 to move the connecting tube 32 toward one end of the oil cup connecting hole 12.

[0028] During assembly, after the main body oil cup 11 of the cigarette cartridge body 1 is filled with oil, one end of the connecting tube 32 of the connecting mechanism 3 is inserted into the oil cup connecting hole 12. At this time, the first connecting side hole 323 of the connecting tube 32 will be in the oil cup connecting hole 12. At this time, the first connecting side hole 323 will not be connected to the main body oil cup 11, thus ensuring that the oil in the main body oil cup 11 will not flow out from the connecting tube 32. The connecting mechanism 3 and the cigarette cartridge body 1 are fixedly connected together. When the smoke oil in the main body oil cup is used up during use, the oil tank connecting hole 21 of the external oil tank 2 can be docked with the other end of the connecting tube 32. During docking, the outer edge of the oil tank connecting hole 21 will press the annular protrusion 321 to make Its connecting pipe 32 moves toward the inside of the main body oil cup 11 until the first connecting side hole 323 is connected with the main body oil cup 11, so that the external oil tanker 2 can be connected with the main body oil cup 11. Since there are two connecting channels, the upper and lower channels, and the pressure of the smoke oil in the external oil tanker 2 is different in the upper and lower channels, the oil in the external oil tanker 2 enters the main body oil cup 11 from the lower connecting pipe 32, and the air in the main body oil cup 11 enters the external oil tanker 2 from the upper connecting pipe 32, thereby completing the oil-gas exchange, and the air pressure in the external oil tanker 2 is finally consistent with the air pressure in the main body oil cup 11, and the smoke oil in the external oil tanker 2 is continuously replenished into the main body oil cup 11, ensuring smooth oil replenishment and no oil leakage.

[0029] In the present technical solution, the bracket 31 is provided with two horizontal through holes arranged up and down, a cover plate 33 is provided at one end of the through hole, a through hole corresponding to the position of the through hole is provided on the cover plate 33, a limiting step is provided on the inner side of the other end of the through hole, the two connecting pipes 32 are respectively passed through the two horizontal through holes, an annular limiting plate 322 adapted to the limiting step is provided at one end of the annular protrusion 321 close to the first connecting side hole 323, and a coil spring 34 is sleeved on the connecting pipe 32, and the coil spring 34 is arranged between the annular limiting plate 322 and the cover plate 33. When in use, when the external oil tank 2 is connected to the connecting mechanism 3, the outer edge of the oil tank connecting hole 21 will press the annular protrusion 321 to make the connecting pipe 32 compress the threaded spring and move into the main body oil cup 11, thereby realizing the connection between the external oil tank 2 and the main body oil cup 11. When the tobacco oil in the external oil tank 2 completely flows into the oil cup, the external oil tank 2 can be pulled out and disassembled. During disassembly, when the external oil tank 2 is separated from the connecting mechanism 3, the annular protrusion 321 is disengaged from the oil tank connecting hole 21. At this time, the connecting pipe 32 moves toward the outside of the main body oil cup 11 under the action of the coil spring 34 until the first connecting side hole 323 is at the position of the oil cup connecting hole 12. At this time, the first connecting side hole 323 will be closed by the side wall of the oil cup connecting hole 12, so that the tobacco oil in the main body oil cup 11 will not flow out through the connecting pipe 32, thereby ensuring the sealing of the tobacco cartridge body and preventing tobacco oil leakage. The structure is simple and easy to control, and it acts as a switch for the oil cup connecting hole 12, thereby ensuring smooth oil filling and sealing.

[0030] In the present technical solution, sealing silicone rings 13 and 22 are provided in the oil cup communicating hole 12 and the oil tank communicating hole 21 to ensure the sealing between the two ends of the communicating pipe 32 and prevent the leakage of smoke oil.

[0031] In the technical solution, a sealing copper ring 23 is further provided in the oil tank connecting hole 21, and the end face of the sealing copper ring 23 close to the inside of the external oil tank 2 is a closed face, and the side wall of the sealing copper ring 23 close to the closed face is provided with a second connecting side hole 231, and the end of the sealing copper ring 23 away from the closed face can be connected to the connecting pipe 32. The sealing copper ring 23 can not only seal the oil tank connecting hole 21 of the external oil tank 2 to prevent the outflow of smoke oil when not in use, but also when it is necessary to connect with the main body oil cup 11 for oil filling, the sealing copper ring 23 can be directly pushed toward one end of the external oil tank 2 through the connecting pipe 32 to connect the second connecting side hole 231 with the connecting pipe 32, so that the smoke oil in the external oil tank 2 can smoothly flow into the main body oil cup 11 through the connecting pipe 32.

[0032] In this technical solution, the dual oil tank electronic cigarette also includes a cigarette rod assembly 4, which includes a shell and a PCBA board assembly and a battery 8 arranged in the shell. The upper end of the shell is provided with a first accommodating cavity for inserting the cigarette cartridge body 1 and the connecting mechanism 3 and an accommodating groove for inserting the external oil tank 2. The atomizing core assembly includes a heating core electrically connected to the PCBA board assembly. The cigarette cartridge body 1 and the connecting mechanism 3 can be limited and fixed by setting the first accommodating cavity, and the external oil tank 2 can be limited by the accommodating groove.

[0033] In the technical solution, a second accommodating cavity is further provided in the shell at the lower end of the first accommodating cavity and the accommodating groove, and the PCBA board assembly and the battery 8 are placed in the second accommodating cavity.

[0034] In the present technical solution, a snap-fit ​​structure 24 is provided between the bottom of the external oil tank 2 and the accommodating groove and between the upper end of the external oil tank 2 and the upper end of the bracket 31 , and the external oil tank 2 can be effectively fixed by the snap-fit ​​structure 24 .

[0035] In this technical solution, the bracket 31 is fixedly connected to the outer side of the cigarette cartridge body 1 by screws. Since the connecting mechanism 3 does not need to be disassembled, it can be directly fixed to the bracket 31 by screws to ensure a stable fixation.

[0036] In the technical solution, a toggle air regulating valve 6 capable of adjusting the size of the inhalation resistance is provided at the bottom of the shell. The size of the inhalation resistance can be adjusted by sliding the toggle air regulating valve left and right.

[0037] In the present technical solution, the PCBA board assembly includes a PCBA circuit board 9 and a microphone assembly and a charging interface 7 electrically connected to the PCBA circuit board 9. The bottom of the shell is provided with a mounting hole adapted to the charging interface 7, and the bottom of the shell is also provided with an air inlet 5.

[0038] The microphone head and atomizer core assembly in this technical solution are all existing technologies, and their working principles will not be described in detail here.

[0039] The utility model realizes dual-channel oil and gas exchange that is automatically connected and closed between the external oil tank 2 and the main body oil cup 11 through a spring mechanism. When there is no external oil tank 2, the oil cup connecting hole 12 of the main body oil cup 11 is automatically closed to form a seal to avoid oil leakage; when the external oil tank 2 is connected, the external oil tank 2 and the main body oil cup 11 are automatically connected and oil and gas exchange is realized, ensuring smooth oil filling and no oil leakage.

[0040] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A double oil tank electronic cigarette, characterized by: The invention comprises a cigarette cartridge body, an external oil bin and a connecting mechanism, wherein the cigarette cartridge body comprises a main body oil cup and an atomizing core assembly arranged in the main body oil cup, a side wall of one side of the oil cup is provided with two oil cup connecting holes arranged up and down, and a side wall of one side of the external oil bin is provided with two oil bin connecting holes arranged up and down, and the connecting mechanism comprises a bracket and two connecting tubes fixed on the bracket and capable of moving left and right, two ends of the connecting tubes can be respectively adapted to the oil cup connecting hole and the oil bin connecting hole, an end face of the connecting tube adapted to the oil cup connecting hole is a closed face, a side wall of one end of the connecting tube close to the closed face is provided with a first connecting side hole, and a side wall of one end of the connecting tube away from the closed face is provided with an annular protrusion, when the external oil bin is connected to the connecting mechanism, the outer edge of the oil bin connecting hole can press the annular protrusion to make the connecting tube move toward one end of the oil cup connecting hole.

2. The double oil tank electronic cigarette according to claim 1, characterized in that: The bracket is provided with two horizontal through holes arranged up and down, a cover plate is provided at one end of the through hole, a through hole corresponding to the position of the through hole is provided on the cover plate, a limiting step is provided on the inner side of the other end of the through hole, the two connecting pipes are respectively passed through the two horizontal through holes, an annular limiting plate adapted to the limiting step is provided at one end of the annular protrusion close to the first connecting side hole, a coil spring is sleeved on the connecting pipe, and the coil spring is arranged between the annular limiting plate and the cover plate.

3. The double oil tank electronic cigarette according to claim 1, characterized in that: Sealing silicone rings are provided in the oil cup communicating hole and the oil bin communicating hole.

4. The double oil tank electronic cigarette according to claim 1, characterized in that: A sealing copper ring is also provided in the oil tank connecting hole, and the end face of the sealing copper ring close to the inside of the external oil tank is a closed surface. A second connecting side hole is provided on the side wall of the sealing copper ring close to the closed surface, and the end of the sealing copper ring away from the closed surface can be connected to the connecting pipe.

5. The double oil tank electronic cigarette according to claim 1, characterized in that: The dual-oil tank electronic cigarette also includes a cigarette rod assembly, which includes a shell and a PCBA board assembly and a battery arranged in the shell. The upper end of the shell is provided with a first accommodating cavity for inserting the cigarette cartridge body and the connecting mechanism and an accommodating groove for inserting the external oil tank. The atomization core assembly includes a heating core electrically connected to the PCBA board assembly.

6. The double oil tank electronic cigarette according to claim 5, characterized in that: A second accommodating cavity is further provided in the shell at the lower end of the first accommodating cavity and the accommodating groove, and the PCBA board assembly and the battery are placed in the second accommodating cavity.

7. The double oil tank electronic cigarette according to claim 5, characterized in that: A buckle structure is provided between the bottom of the external oil tank and the containing groove and between the upper end of the external oil tank and the upper end of the bracket.

8. The double oil tank electronic cigarette according to claim 1, characterized in that: The bracket is fixedly connected to the outer side of the cigarette cartridge body by screws.

9. The double oil tank electronic cigarette according to claim 5, characterized in that: The bottom of the shell is provided with a toggle air regulating valve which can adjust the suction resistance.

10. The double oil tank electronic cigarette according to claim 5, characterized in that: The PCBA board assembly includes a PCBA circuit board and a microphone assembly and a charging interface electrically connected to the PCBA circuit board. The bottom of the shell is provided with a mounting hole adapted to the charging interface.

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