External oil bin type electronic cigarette cartridge with internal oil seal and electronic cigarette

Abstract

The external oil bin type electronic cigarette cartridge comprises a cigarette holder oil cup body and an atomization oil cup body which are connected in a split mode, an upper atomization pipe body is arranged in the cigarette holder oil cup body, the upper end of the upper atomization pipe body is connected with a cigarette holder, and the lower end of the upper atomization pipe body is provided with an oil seal valve. The cigarette holder is manually screwed to rotate in the circumferential direction to drive the upper atomization pipe body to rotate in the circumferential direction, the upper atomization pipe body drives the oil seal valve to rotate in the circumferential direction, and therefore the oil liquid output through hole is opened or closed. The atomization oil cup body is in butt joint with the bottom of the cigarette holder oil cup body, and tobacco tar in the cigarette holder oil cup body flows downwards into the atomization oil cup body by opening the oil liquid output through hole. According to the electronic cigarette, the cigarette holder oil cup body is equivalent to an external oil bin and is independently packaged and transported in a split mode, the cigarette holder oil cup body and the atomization oil cup body are combined when the electronic cigarette is used, and oil leakage and oil spilling are avoided. A small amount of tobacco tar can be released to the atomization oil cup body for use according to use requirements, the tobacco tar to be used is isolated in the cigarette holder oil cup body, and the cleanliness and freshness of the tobacco tar can be kept.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic cigarettes, and in particular to an external oil tank type electronic cigarette cartridge with an internal oil seal and an electronic cigarette. Background Art

[0002] Electronic cigarettes are electronic products that use electric heating to form steam aerosol smoke for human consumption, which can relieve smoking addiction and have the effect of imitating the effect of smoking traditional cigarettes. The existing types of electronic cigarettes basically include two major categories: integrated electronic cigarettes and split electronic cigarettes. For these two types of electronic cigarettes, there are usually two types of liquid oil storage and cotton-immersed oil storage. For cotton-immersed oil storage, polymer integrated cotton oil storage is usually used, that is, the smoke oil is adsorbed on the oil storage cotton, and then the oil storage cotton is placed in the oil cup body. The oil storage cotton is vertically provided with a through hole for installing the atomizer core, and the atomizer core is set in the through hole. Since the oil storage cotton has a certain oil locking property, its oil seal structure has relatively low requirements and can be designed as a large-capacity oil storage. As for liquid oil storage, an atomizing oil guide pipe is provided in the oil cup, an atomizing core is provided in the atomizing oil guide pipe, and the oil storage cavity formed outside the atomizing oil guide pipe and the oil cup is filled with oil. Usually, electronic cigarettes with liquid oil storage, whether integrated or split, are designed as small-capacity oil storage cavities, so that the oil seal structure can better control the problem of oil leakage and oil overflow. Because the oil storage cavity has a large space, the different air pressures inside and outside the electronic cigarette environment can easily lead to oil leakage and oil overflow. Therefore, in view of the above technical problems, there is still room for optimization and improvement in the structure of electronic cigarette products. Utility Model Content

[0003] The purpose of the utility model is to propose an external oil tank type electronic cigarette oil cartridge and an electronic cigarette with an internal oil seal, so as to solve the problem that the existing cartridge-changing split type electronic cigarette has a small oil storage capacity and a large designed oil storage capacity, which is easy to cause oil leakage and oil overflow during product transportation.

[0004] The technical solution disclosed in the utility model is an external oil tank type electronic cigarette cartridge with an internal oil seal, comprising a cigarette holder oil cup body and an atomizer oil cup body connected in a split manner, wherein the cigarette holder oil cup body comprises:

[0005] An oiling cup body, wherein the upper end of the oiling cup body is provided with an upper port, and the lower end of the oiling cup body is provided with a lower port;

[0006] A cigarette holder, the cigarette holder being arranged at the upper end port;

[0007] A first bottom cover body, wherein the first bottom cover body is connected to the lower port, a first connecting hole is provided on the first bottom cover body, and at least one oil output through hole is provided on the first bottom cover body outside the first connecting hole;

[0008] An upper atomizing tube body, wherein the lower end of the upper atomizing tube body is connected to the first connecting hole and is provided with an oil sealing valve, and the upper end of the upper atomizing tube body passes through the upper port and is connected to the cigarette holder, and the upper atomizing tube body is driven to rotate circumferentially by manually twisting the cigarette holder, and the upper atomizing tube body drives the oil sealing valve to rotate circumferentially, so as to realize the opening or closing of the oil output through hole;

[0009] The atomizing oil cup body comprises:

[0010] A lower oil cup body, wherein the upper end of the lower oil cup body is provided with a second connection hole for docking with the first connection hole, and an oil input docking hole for docking with the oil output through hole;

[0011] The lower atomizing tube body is arranged in the lower oil cup body, an atomizing core is arranged in the lower atomizing tube body, the upper end of the lower atomizing tube body is connected to the second connecting hole, and the lower end of the lower atomizing tube body is connected to the outside.

[0012] Furthermore, the upper atomizing tube body is a cylindrical tube body, and a first notch portion is provided at the upper end edge of the upper atomizing tube body. An inner tube channel for inhalation is provided in the cigarette holder, and an outer tube body is provided on the periphery of the inner tube channel. The outer wall of the inner tube channel and the inner wall of the outer tube body form an annular slot for plugging into the upper end of the upper atomizing tube body, and a first protrusion portion is provided at the bottom of the annular slot, and the first protrusion portion is inserted into the first notch portion, so that the rotating cigarette holder drives the upper atomizing tube body to rotate.

[0013] Furthermore, the upper port of the oiling cup body is set as a circular step hole, and the bottom of the hole of the circular step hole is provided with a downwardly extending pipe mouth, the upper atomizing tube body is inserted into the pipe mouth, and the side wall of the upper atomizing tube body is provided with an annular groove, and a sealing ring is embedded in the annular groove, and a first convex edge is provided on the outer wall of the upper atomizing tube body below the annular groove, and the first convex edge abuts against the bottom of the pipe mouth.

[0014] Furthermore, a second protrusion is provided on the circular step hole, and a second notch is provided on the lower edge of the cigarette holder. When the cigarette holder rotates, the second notch is blocked by the second protrusion to limit the forward and reverse rotation of the cigarette holder.

[0015] The oil seal valve further comprises a torus and a cover plate extending outward from the outer wall of the torus. The bottom surface of the cover plate is flush with the bottom surface of the torus. Connecting ribs are arranged on the cover plate and the torus. The torus is sleeved on the lower end of the upper atomizing tube.

[0016] Furthermore, a third notch is provided at the upper end of the annular body, the lower end of the upper atomizing tube body is inserted into the annular body, a second convex edge is provided on the inner wall of the upper atomizing tube body, a third convex portion is provided on the bottom side of the second convex edge, the second convex edge is pressed on the upper end of the annular body, and the third convex portion is inserted into the third notch.

[0017] Furthermore, the first connecting hole on the first bottom cover body is a connecting through hole with a hole wall protruding upward, the first bottom cover body is sleeved with a first silicone seat, the first silicone seat is provided with a through hole joint part which is plugged into the first connecting hole, the upper end of the through hole joint part protrudes from the top surface of the first silicone seat, the upper end outer wall of the through hole joint part is provided with a first raised sealing ring part, the upper end of the through hole joint part is plugged into the lower end of the upper atomization tube body, the first silicone seat is provided with a docking through hole corresponding to the oil output through hole position on the first bottom cover body, the upper edge of the docking through hole is provided with a second raised sealing ring part, and the outer side wall of the first silicone seat is provided with a third raised sealing ring part.

[0018] Furthermore, the first bottom cover body and the first silicone seat are provided with an oil filling hole which is through and used for filling oil, and a silicone sealing plug is provided on the oil filling hole.

[0019] Furthermore, the lower end of the lower oil cup body is set to be an opening, and a second bottom cover body is provided at the lower end opening of the lower oil cup body. A second silicone seat is sleeved on the second bottom cover body, and a plugging hole for connecting to the lower end of the lower atomizer tube body is provided on the second silicone seat. An air inlet is provided at the bottom of the second bottom cover body, and the air inlet and the plugging hole conduct external air to enter the lower atomizer tube body. The second bottom cover body is provided with an electrical terminal electrically connected to the atomizer core.

[0020] The present technical solution discloses an electronic cigarette, which includes an electronic cigarette cartridge structure designed in the above technical solution.

[0021] The external oil tank type electronic cigarette cartridge and electronic cigarette with internal oil seal designed by the above technical solution have the following beneficial effects:

[0022] 1. Compared with the existing electronic cigarette cartridges, the oil storage tank and the atomization component are designed to be in the same cavity. This solution designs the oil storage tank and the atomization oil tank as two split-connected bodies, namely, a mouthpiece oil cup body with a mouthpiece and an oil cup body with an atomization core component. The mouthpiece oil cup body is the main oil tank, that is, an external oil tank, in which an oil seal valve is arranged that is opened or closed by rotating the mouthpiece. The mouthpiece oil cup body as an external oil tank is packaged and transported separately. At the same time, it has fewer structural components and does not require a design of an oil guide hole connected to the inside like the atomization tube body of the atomization core assembly, so it is helpful to avoid oil leakage and oil overflow during transportation.

[0023] 2. When the end consumer uses the cigarette holder oil cup and the atomizer oil cup, they are combined into an electronic cigarette cartridge and a host to form an electronic cigarette product. The cigarette holder is rotated to open or close the oil in the cigarette holder oil cup and flow into the atomizer oil cup. The operation is convenient and quick. A small amount of oil can be released to the atomizer oil cup according to the needs of use. The oil to be used is isolated in the cigarette holder oil cup, which is conducive to keeping the oil clean and fresh.

[0024] 3. The cigarette holder oil cup body and the atomizer oil cup body are designed separately. A small amount of smoke oil can be released into the atomizer oil cup body through the cigarette holder oil cup body above according to the needs of use. In this way, a small amount of smoke oil is used in the atomizer oil cup body, which is also beneficial to reduce the problem of oil leakage and oil overflow in the atomizer oil cup body.

[0025] 4. The electronic cigarette cartridge designed by this scheme has a mouthpiece oil cup that is not prone to oil leakage or oil overflow. The mouthpiece oil cup can be designed as a cavity for storing a larger amount of oil, thereby forming an electronic cigarette with a large oil storage capacity, making the electronic cigarette usable for a longer time and more economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of an embodiment of an electronic cigarette cartridge disclosed in the utility model.

[0027] Figure 2 This is a schematic diagram of the exploded structure of the oil cup body of the cigarette holder disclosed in the utility model.

[0028] Figure 3 The utility model is a schematic diagram of the internal assembly structure of the oil cup body of the cigarette holder disclosed in the utility model.

[0029] Figure 4 The utility model discloses a schematic diagram of the internal structure of the cigarette holder.

[0030] Figure 5 The utility model is a schematic diagram of the cross-sectional structure of the oil cup body of the cigarette holder disclosed in the utility model.

[0031] Figure 6 The utility model discloses an exploded schematic diagram of the atomizer oil cup structure. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present disclosure, rather than all embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present disclosure.

[0033] Please refer to Figure 1 , is an external oil tank type electronic cigarette cartridge with an internal oil seal disclosed in the technical solution, which includes a mouthpiece oil cup body 01 and an atomizer oil cup body 02 connected in a split manner. The mouthpiece oil cup body 01 and the atomizer oil cup body 02 are preferably connected in a docking and snap-fitting connection structure scheme, and convex hooks and snap-fitting ports are arranged on the edges of the docking points.

[0034] Please refer to Figures 2 to 5 , is a specific embodiment of the structure of the cigarette holder oil cup 01 disclosed in the technical solution, the cigarette holder oil cup body 01 includes:

[0035] An oil cup body 1, wherein the upper end of the oil cup body 1 is provided with an upper port, and the lower end of the oil cup body 1 is provided with a lower port;

[0036] A cigarette holder 2, wherein the cigarette holder 2 is arranged at the upper end;

[0037] A first bottom cover body 3, wherein the first bottom cover body 3 is connected to the lower port, a first connection hole 301 is provided on the first bottom cover body 3, and at least one oil output through hole 302 is provided on the first bottom cover body 3 outside the first connection hole 301;

[0038] The upper atomizing tube body 4, the lower end of which is connected to the first connecting hole 301, and is provided with an oil sealing valve 5, the upper end of which passes through the upper port and is connected to the cigarette holder 2, the upper atomizing tube body 4 is driven to rotate circumferentially by manually twisting the cigarette holder 2, and the upper atomizing tube body 4 is driven to rotate circumferentially by the upper atomizing tube body 4, so as to realize the opening or closing of the oil output through hole 302;

[0039] Please refer to Figure 1 , Figure 6 , a specific embodiment of the atomizing oil cup body 02 disclosed in the technical solution, the atomizing oil cup body 02 comprises:

[0040] A lower oil cup body 9, wherein the upper end of the lower oil cup body 9 is provided with a second connection hole 901 connected to the first connection hole 301, and an oil input connection hole 902 connected to the oil output through hole 302;

[0041] The lower atomizing tube body 10 is arranged in the lower oil cup body 9, an atomizing core is arranged in the lower atomizing tube body 10, the upper end of the lower atomizing tube body 10 is connected to the second connecting hole 901, and the lower end of the lower atomizing tube body 10 is connected to the outside.

[0042] Furthermore, the lower end of the lower oil cup body 9 is set to be an opening, and a second bottom cover body 11 is provided at the lower end opening of the lower oil cup body 9. A second silicone seat 12 is sleeved on the second bottom cover body 11, and a plugging hole 121 for docking with the lower end of the lower atomizer tube body 10 is provided on the second silicone seat 12. An air inlet hole 111 is provided at the bottom of the second bottom cover body 11. The air inlet hole 111 and the plugging hole 121 conduct external air to enter the lower atomizer tube body 10, and an electrical terminal 13 electrically connected to the atomizer core is provided on the second bottom cover body 11.

[0043] Please refer to Figures 2 to 5Further, the upper atomizing tube body 4 is a cylindrical tube body, and a first notch portion 401 is provided at the upper edge of the upper atomizing tube body 4. The inner tube channel 201 for suction is provided in the cigarette holder 2, and an outer tube body 202 is provided at the periphery of the inner tube channel 201. The outer wall of the inner tube channel 201 and the inner wall of the outer tube body 202 form an annular slot for plugging the upper end of the upper atomizing tube body 4. A first protrusion 203 is provided at the bottom of the annular slot, and the first protrusion 203 is inserted into the first notch portion 401, so that the rotating cigarette holder 2 drives the upper atomizing tube body 4 to rotate. This is one of the linkage structural solutions for the cigarette holder 2 to drive the upper atomizing tube body 4, and the structure for realizing linkage is relatively simple and convenient for assembly.

[0044] Furthermore, the upper port of the oil cup body 1 is set as a circular step hole 101, and the bottom of the hole of the circular step hole 101 is provided with a downwardly extending pipe mouth 102, the upper atomization tube body 4 is inserted into the pipe mouth 102, and the side wall of the upper atomization tube body 4 is provided with an annular groove 402, and a sealing ring 6 is embedded in the annular groove 402, and the outer wall of the upper atomization tube body 4 below the annular groove 402 is provided with a first flange 403, and the first flange 403 abuts against the bottom of the pipe mouth 102.

[0045] Furthermore, the circular stepped hole 101 is provided with a second protrusion 103, and the lower edge of the mouthpiece 2 is provided with a second notch 204. When the mouthpiece 2 rotates, the second notch 204 is blocked by the second protrusion 103 to achieve forward and reverse rotation limitation of the mouthpiece 2. This solution can quickly rotate the mouthpiece 2 to the state of opening the oil seal valve 5 or the state of closing the oil seal valve 5.

[0046] Furthermore, the oil seal valve 5 is composed of a torus 51 and a cover plate 52 whose outer wall extends outward, the bottom surface of the cover plate 52 is flush with the bottom surface of the torus 51, and a connecting rib 53 is provided on the cover plate 52 and the torus 51, and the torus 51 is sleeved on the lower end of the upper atomizing tube 4. Preferably, the torus 51, the cover plate 52, and the connecting rib 53 are integrally injection molded with food-grade plastic.

[0047] Furthermore, the upper end of the annular body 51 is provided with a third notch 511, the lower end of the upper atomizing tube body 4 is inserted into the annular body 51, a second flange 404 is provided on the outer wall of the upper atomizing tube body 4, a third protrusion 405 is provided on the bottom side of the second flange 404, the second flange 404 is pressed on the upper end of the annular body 51, and the third protrusion 405 is inserted into the third notch 511. This scheme is one of the linkage structural schemes for the upper atomizing tube body 4 to drive the oil seal valve 5. The oil seal valve 5 is a separate component that is relatively simple to process and produce, and it does not exclude the structural scheme that the structure of the oil seal valve 5 and the upper atomizing tube body 4 are integrally formed.

[0048] Furthermore, the first connecting hole 301 on the first bottom cover body 3 is a connecting through hole with a hole wall protruding upward, and the first bottom cover body 3 is sleeved with a first silicone seat 7, and the first silicone seat 7 is provided with a through hole joint portion 71 for plugging into the first connecting hole 301, the upper end of the through hole joint portion 71 protrudes from the top surface of the first silicone seat 7, and the upper end outer wall of the through hole joint portion 71 is provided with a first raised sealing ring portion 711, and the upper end of the through hole joint portion 71 is plugged into the lower end of the upper atomization tube body 4, and the first silicone seat 7 is provided with a docking through hole 72 at the position corresponding to the oil output through hole 302 on the first bottom cover body 3, and a second raised sealing ring portion 721 is provided on the upper edge of the docking through hole 72, and a third raised sealing ring portion 73 is provided on the outer side wall of the first silicone seat 7.

[0049] When the cover plate 52 of the oil sealing valve 5 is pressed upward by the second raised sealing ring portion 721, the docking hole 72 is blocked, so as to close the oil passage between the cigarette holder oil cup body 01 and the atomizer oil cup body 02. The second raised sealing ring portion 721 and the cover plate 52 can play a better blocking role.

[0050] Preferably, the first bottom cover body 3 and the first silicone seat 7 are provided with an oil filling hole for oil filling, and the oil filling hole is provided with a silicone sealing plug 8. By designing the silicone sealing plug 8, it is convenient to open it for oil filling.

[0051] This technical solution discloses an electronic cigarette, which includes the above-mentioned external oil tank type electronic cigarette cartridge with internal oil seal. It should be understood by technicians in the relevant field that the electronic cigarette also includes an electronic cigarette shell, a battery, a control circuit board, an airflow sensor and other components arranged in the electronic cigarette shell, and the electronic cigarette shell is provided with a plug-in cavity for plugging the electronic cigarette cartridge, and a spring pin is provided at the bottom of the plug-in cavity to achieve electrical contact and connection with the power terminal 13. This is the existing technology in the field of electronic cigarettes, and it will not be shown one by one in the drawings of the specification, and will not be described one by one.

[0052] Compared with the existing electronic cigarette structure, the external oil tank type electronic cigarette cartridge and electronic cigarette with internal oil seal disclosed by the technical solution have a mouthpiece oil cup body 01 which is equivalent to an external oil tank, and is packaged and transported separately. When in use, the mouthpiece oil cup body 01 is combined with the atomizer oil cup body 02, which is conducive to avoiding oil leakage and oil overflow. A small amount of oil can be released to the atomizer oil cup body for use according to the needs of use, and the oil to be used is isolated and stored in the mouthpiece oil cup body 01, which is conducive to keeping the oil clean and fresh.

[0053] It should be noted that the external structure of the mouthpiece oil cup body 01 and the atomizer oil cup body 02 shown in the drawings of this specification is not the only external structure for realizing the technical principle of this technical solution. It can be adjusted according to the design to an external structure that is compatible with other components of the electronic cigarette, such as a rectangular column, a cylinder, etc.

[0054] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An external oil tank type electronic cigarette cartridge with internal oil seal, characterized in that: The invention comprises a cigarette holder oil cup body (01) and an atomizer oil cup body (02) which are connected in a split manner, wherein the cigarette holder oil cup body (01) comprises: An oiling cup body (1), wherein the upper end of the oiling cup body (1) is provided with an upper port, and the lower end of the oiling cup body (1) is provided with a lower port; A cigarette holder (2), wherein the cigarette holder (2) is arranged at the upper end port; A first bottom cover body (3), the first bottom cover body (3) being connected to the lower port, the first bottom cover body (3) being provided with a first connection hole (301), and at least one oil output through hole (302) being provided on the first bottom cover body (3) outside the first connection hole (301); An upper atomizing tube body (4), wherein the lower end of the upper atomizing tube body (4) is connected to the first connecting hole (301) and is provided with an oil sealing valve (5); the upper end of the upper atomizing tube body (4) passes through the upper port and is connected to the cigarette holder (2); the cigarette holder (2) is manually twisted to rotate circumferentially, driving the upper atomizing tube body (4) to rotate circumferentially; the upper atomizing tube body (4) drives the oil sealing valve (5) to rotate circumferentially, thereby realizing the opening or closing of the oil output through hole (302); The atomizing oil cup body (02) comprises: A lower oil cup body (9), wherein the upper end of the lower oil cup body (9) is provided with a second connection hole (901) connected to the first connection hole (301), and an oil input connection hole (902) connected to the oil output through hole (302); The lower atomizing tube body (10) is arranged in the lower oil cup body (9), an atomizing core is arranged in the lower atomizing tube body (10), the upper end of the lower atomizing tube body (10) is connected to the second connecting hole (901), and the lower end of the lower atomizing tube body (10) is connected to the outside.

2. The external oil tank type electronic cigarette cartridge with internal oil seal according to claim 1, characterized in that: The upper atomizing tube body (4) is a cylindrical tube body, and a first notch portion (401) is provided at the upper edge of the upper atomizing tube body (4). An inner tube channel (201) for inhalation is provided in the cigarette holder (2), and an outer tube body (202) is provided on the periphery of the inner tube channel (201). The outer wall of the inner tube channel (201) and the inner wall of the outer tube body (202) form an annular slot for plugging the upper end of the upper atomizing tube body (4). A first protrusion portion (203) is provided at the bottom of the annular slot, and the first protrusion portion (203) is inserted into the first notch portion (401), so that the rotating cigarette holder (2) drives the upper atomizing tube body (4) to rotate.

3. The external oil tank type electronic cigarette cartridge with internal oil seal according to claim 2, characterized in that: The upper port of the oiling cup body (1) is set as a circular stepped hole (101), and the bottom of the hole of the circular stepped hole (101) is provided with a downwardly extending pipe mouth (102), and the upper atomizing tube body (4) is inserted into the pipe mouth (102), and the side wall of the upper atomizing tube body (4) is provided with an annular groove (402), and a sealing ring (6) is embedded in the annular groove (402), and the outer wall of the upper atomizing tube body (4) below the annular groove (402) is provided with a first convex edge (403), and the first convex edge (403) is abutted against the bottom of the pipe mouth (102).

4. The external oil tank type electronic cigarette cartridge with internal oil seal according to claim 3, characterized in that: The circular stepped hole (101) is provided with a second protruding portion (103), and the lower edge of the cigarette holder (2) is provided with a second notch portion (204). When the cigarette holder (2) rotates, the second notch portion (204) is blocked by the second protruding portion (103) to achieve forward and reverse rotation limiting of the cigarette holder (2).

5. The electronic cigarette cartridge with an external oil tank and an internal oil seal according to claim 1, characterized in that: The oil seal valve (5) is composed of a circular ring (51) and a cover plate (52) extending outward from the outer wall of the circular ring (51); the bottom surface of the cover plate (52) is flush with the bottom surface of the circular ring (51); connecting ribs (53) are provided on the upper surface of the cover plate (52) and the circular ring (51); and the circular ring (51) is sleeved on the lower end of the upper atomizing tube (4).

6. The external oil tank type electronic cigarette cartridge with internal oil seal according to claim 5, characterized in that: The upper end of the annular body (51) is provided with a third notch portion (511), the lower end of the upper atomizing tube body (4) is inserted into the annular body (51), a second convex edge (404) is provided on the outer wall of the upper atomizing tube body (4), a third convex portion (405) is provided on the bottom side of the second convex edge (404), the second convex edge (404) is pressed on the upper end of the annular body (51), and the third convex portion (405) is inserted into the third notch portion (511).

7. The electronic cigarette cartridge with an external oil tank and an internal oil seal according to claim 1, characterized in that: The first connection hole (301) on the first bottom cover body (3) is a connection through hole with a hole wall protruding upwards. The first bottom cover body (3) is sleeved with a first silicone seat (7). The first silicone seat (7) is provided with a through hole joint portion (71) plugged into the first connection hole (301). The upper end of the through hole joint portion (71) protrudes from the top surface of the first silicone seat (7). The upper end outer wall of the through hole joint portion (71) is provided with a first protruding sealing ring portion (711). The upper end of the through hole joint portion (71) is plugged into the lower end of the upper atomizing tube body (4). The first silicone seat (7) is provided with a docking through hole (72) at a position corresponding to the oil output through hole (302) on the first bottom cover body (3). The upper edge of the docking through hole (72) is provided with a second protruding sealing ring portion (721). The outer side wall of the first silicone seat (7) is provided with a third protruding sealing ring portion (73).

8. The external oil tank type electronic cigarette cartridge with internal oil seal according to claim 7, characterized in that: The first bottom cover body (3) and the first silicone seat (7) are provided with an oil injection hole that is through and used for injecting oil, and a silicone sealing plug (8) is provided on the oil injection hole.

9. The external oil tank type electronic cigarette cartridge with internal oil seal according to claim 1, characterized in that: The lower end of the lower oil cup body (9) is set to be open, and a second bottom cover body (11) is provided at the lower end opening of the lower oil cup body (9). A second silicone seat (12) is sleeved on the second bottom cover body (11), and a plugging hole (121) for connecting with the lower end of the lower atomizing tube body (10) is provided on the second silicone seat (12). An air inlet (111) is provided at the bottom of the second bottom cover body (11), and the air inlet (111) and the plugging hole (121) conduct external air to enter the lower atomizing tube body (10). The second bottom cover body (11) is provided with an electrical terminal (13) electrically connected to the atomizing core.

10. An electronic cigarette, characterized in that: An external oil tank type electronic cigarette cartridge comprising the internal oil seal according to any one of claims 1 to 9.

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