Leakage-proof electronic cigarette oil filler plug structure

Abstract

The utility model discloses a leakproof electronic cigarette oil filler plug structure, an electronic cigarette is provided with an oil filler port, an oil filler plug is plugged in the oil filler port in a pulling mode, the oil filler plug comprises an inner oil sealing plug and an outer oil sealing plug, the inner oil sealing plug comprises a first plug plate and a first protruding plug portion arranged on the bottom face of the first plug plate, and the outer oil sealing plug comprises a second plug plate and a second protruding plug portion arranged on the bottom face of the second plug plate. A groove is formed in the first protruding plug part and in the top face of the first plug plate, a linear notch or a cross-shaped notch is formed in the bottom of the groove, and the first protruding plug part is plugged into an oil filling opening of the electronic cigarette in a close fit mode. The outer sealing oil plug comprises a second plug plate and a second protruding plug part arranged at the bottom of the second plug plate, and the second protruding plug part is plugged in the groove in a close fit mode. According to the electronic cigarette, the linear notch or the cross-shaped notch of the inner oil sealing plug serves as an insertion opening during oil injection, and when the linear notch or the cross-shaped notch is in a natural state, tobacco tar in the electronic cigarette cannot flow out of the linear notch or the cross-shaped notch, the tobacco tar can be prevented from being directly poured out under the condition that the outer oil sealing plug is opened, and the leakage-proof effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic cigarettes, and in particular to an electronic cigarette oil filling plug structure for preventing oil leakage in oil-filled electronic cigarettes. Background Art

[0002] Electronic cigarettes are tobacco substitutes that use electrical heating to vaporize e-liquid into aerosolized vapor particles for inhalation. There are a wide variety of e-cigarettes available, including refillable and non-refillable types. Non-refillable e-cigarettes are pre-filled with e-liquid at the factory and become discarded once the e-liquid is depleted. Compared to non-refillable e-cigarettes, refillable e-cigarettes offer greater cost-effectiveness and a wider range of flavor options. Refillable e-cigarettes allow users to use the same cartridge multiple times. Once the cartridge is depleted, users can refill with their preferred e-liquid, choosing from a variety of origins, brands, and types. Therefore, refillable e-cigarettes are increasingly popular among consumers. Existing refillable e-cigarettes typically feature a refill port with a plug, typically made of silicone and pluggable. The existing oil filler plug has a very simple and straightforward design. Once pulled out, the filler port is fully opened, allowing the nozzle of the oil bottle to be inserted into the filler port for filling. While this is simple and convenient, it also means that the oil can be poured out as soon as the plug is pulled out, posing a risk of children accidentally ingesting the oil. Therefore, there is a need to optimize and improve the existing oil filler plug. Utility Model Content

[0003] In view of this, the present invention proposes a leak-proof e-cigarette oil filling plug structure to solve the problem that the oil filling plug of the existing e-cigarette oil filling port will spill the e-liquid when it is pulled out, posing a risk of children accidentally ingesting the e-liquid.

[0004] The technical solution disclosed by the present utility model is a leak-proof electronic cigarette oil filling plug structure, the electronic cigarette is provided with an oil filling port, and the oil filling plug is removable and plugged in the oil filling port, and is characterized in that the oil filling plug includes an inner oil sealing plug and an outer oil sealing plug, the inner oil sealing plug includes a first plug plate, a first raised plug portion provided on the bottom surface of the first plug plate, the first raised plug portion and the first plug plate are integrally formed with silicone, a groove is formed inside the first raised plug portion and on the top surface of the first plug plate, the bottom of the groove is provided with an "I"-shaped incision or a "X"-shaped incision, the first raised plug portion is tightly fitted in the oil filling port of the electronic cigarette; the outer oil sealing plug includes a second plug plate, a second raised plug portion provided on the bottom of the second plug plate, and the second raised plug portion is tightly fitted in the groove.

[0005] Furthermore, the length of the first plug plate is greater than the length of the first raised plug portion, and a first through hole and a first oil plug plug column are respectively provided on the first plug plate on both sides of the length direction of the first raised plug portion, and the first oil plug plug column and the inner oil plug are integrally molded by silicone injection; a second through hole and a third through hole are respectively provided on both sides of the oil filling port, and the first oil plug plug column is inserted into the third through hole, and the first through hole overlaps with the second through hole.

[0006] Furthermore, the length of the second plug plate is greater than the length of the second raised plug portion, and a second oil plug plug column and a bottom thinning portion are respectively provided on the second plug plate on both sides of the length direction of the second raised plug portion. The second oil plug plug column is inserted into the overlapping first through hole and second through hole, and the bottom thinning portion forms a gap with the outer wall of the electronic cigarette, which is used to pull out the second raised plug portion from the position of the bottom thinning portion.

[0007] Preferably, the second plug plate, the second raised plug portion, and the second oil plug connecting column of the outer oil plug are integrally formed by injection molding of silicone or TPE soft rubber.

[0008] Preferably, the structures of the first oil plug plug column and the second oil plug plug column are both plug-in end columns, the rear end of the plug-in end column is a through-hole tight-fitting sealing end, and the through-hole tight-fitting sealing end is an inverted frustum portion extending from the rear end of the plug-in end column and a cylindrical portion extending from the rear end of the inverted frustum portion.

[0009] Preferably, a steel pipe is provided in the groove wall of the first protruding plug portion through a rubber coating process, and the steel pipe is used to support and strengthen the strength of the groove.

[0010] The utility model discloses a leak-proof electronic cigarette oil filling plug structure, which has the following beneficial effects: the electronic cigarette oil filling plug of this scheme adopts a double sealing plug structure design, including an inner oil sealing plug and an outer oil sealing plug. The inner oil sealing plug is fixedly plugged into the oil filling port of the electronic cigarette, and a "straight" cutout or "cross" cutout of the inner oil sealing plug serves as an insertion port for oil filling. When the "straight" cutout or "cross" cutout is in a natural state, the oil in the electronic cigarette will not flow out of the "straight" cutout or "cross" cutout, thereby preventing the oil from directly pouring out when the outer oil sealing plug is opened. The groove provided on the inner oil sealing plug serves as a second protruding plug portion that plugs into the outer oil sealing plug to seal the oil filling port of the electronic cigarette. Even if the outer oil sealing plug is not tightly plugged, the design of the inner oil sealing plug can also play a leak-proof role. In addition, through the design of the inner oil plug, when a child accidentally plays with the e-cigarette and accidentally opens the outer oil plug, the e-cigarette oil will not be directly poured out. It can play a certain child-proof effect, preventing children from accidentally ingesting the oil, and buying time for adults to stop it in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1This is a schematic diagram of an embodiment of the electronic cigarette oil filling port of the present utility model.

[0012] Figure 2 This is a schematic diagram of the electronic cigarette oil filling port of the present invention being equipped with an oil filling plug.

[0013] Figure 3 This is a schematic diagram of the internal oil seal plug structure of the present utility model.

[0014] Figure 4 This is a cross-sectional view of the inner oil seal plug structure of the present utility model.

[0015] Figure 5 This is a schematic diagram of the structure of the external oil seal plug of the utility model.

[0016] Figure 6 It is a side view of the external oil sealing plug structure of the utility model. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are also within the scope of protection of the present disclosure.

[0018] Please refer to Figure 1 、 Figure 2 , is a specific embodiment of a leak-proof electronic cigarette oil filling plug structure provided by the present technical solution. The electronic cigarette shown in the figure is used as a schematic to illustrate the present technical solution, and its specific shape is not intended to limit all electronic cigarettes.

[0019] Please refer to Figures 1 to 6 The electronic cigarette is provided with an oil filling port 10, and the oil filling plug is removably plugged in the oil filling port 10, the oil filling plug includes an inner oil sealing plug 20 and an outer oil sealing plug 30, the inner oil sealing plug 20 includes a first plug plate 201, a first raised plug portion 202 provided on the bottom surface of the first plug plate 201, the first raised plug portion 202 and the first plug plate 201 are integrally formed with silicone, a groove 2021 is formed inside the first raised plug portion 202 and on the top surface of the first plug plate 201, the bottom of the groove 2021 is provided with an "I" cutout or a "X" cutout 2022, the first raised plug portion 202 is tightly plugged in the oil filling port 10 of the electronic cigarette; the outer oil sealing plug 30 includes a second plug plate 301, a second raised plug portion 302 provided at the bottom of the second plug plate 301, the second raised plug portion 302 is tightly plugged in the groove 2021.

[0020] The dual sealing design of the inner and outer oil plugs 20, 30 of this solution allows the inner oil plug 20 to have a straight or cross-shaped cutout 2022 that serves as an insertion port for oil filling. When the straight or cross-shaped cutout 2022 is in its natural state, the liquid in the electronic cigarette will not flow out of the straight or cross-shaped cutout 2022, thereby preventing the liquid from directly pouring out when the outer oil plug 30 is opened. The groove 2021 provided on the inner oil plug 20 serves as a plug for the second raised plug portion 302 of the outer oil plug 30, sealing the oil filling port 10 of the electronic cigarette. Even if the outer oil plug 30 is not tightly closed, the inner oil plug 20 can still prevent leakage.

[0021] Reference Figures 1 to 3 Furthermore, the length of the first plug plate 201 is greater than the length of the first raised plug portion 202. A first through hole 203 and a first oil plug plug column 204 are respectively provided on the first plug plate 201 on both sides of the length direction of the first raised plug portion 202. The first oil plug plug column 204 and the inner oil plug 20 are integrally formed by silicone injection molding; a second through hole 102 and a third through hole 103 are respectively provided on both sides of the oil filling port 10. The first oil plug plug column 204 is inserted into the third through hole 103, and the first through hole 203 overlaps with the second through hole 102.

[0022] The length of the second plug plate 301 is greater than the length of the second raised plug portion 302. A second oil plug plug column 303 and a bottom thinning portion 304 are respectively provided on the second plug plate 301 on both sides of the length direction of the second raised plug portion 302. The second oil plug plug column 303 is inserted into the overlapping first through hole 203 and second through hole 102. The bottom thinning portion 304 forms a gap with the outer wall of the electronic cigarette, which is used to pull out the second raised plug portion 302 from the position of the bottom thinning portion 304.

[0023] The first oil plug plug post 204 of the inner oil plug 20 is inserted into the third through hole 103, and the first through hole 203 at the other end of the inner oil plug 20 overlaps with the second through hole 102 of the oil filling port 10 and is inserted through the second oil plug plug post 303 of the outer oil plug 30, so that both ends of the inner oil plug 20 are fixed to the second through hole 102 and the third through hole 103 of the oil filling port 10, thereby achieving a stable assembly of the inner oil plug 20.

[0024] Preferably, the second plug plate 301 , the second raised plug portion 302 and the second oil plug plug post 303 of the outer oil plug 30 are integrally formed by injection molding of silicone or TPE soft rubber.

[0025] Please refer to Figure 3 、 Figure 6The first oil plug plug post 204 and the second oil plug plug post 303 both have a plug-in end column 3031, with the rear end of the plug-in end column 3031 serving as a tight-fitting sealing end for the through-hole. The tight-fitting sealing end for the through-hole comprises an inverted frustum portion 3032 extending from the rear end of the plug-in end column 3031, and a cylindrical portion 3033 extending from the rear end of the inverted frustum portion 3032. The cylindrical portion 3033, the inverted frustum portion 3032, the first plug plate 201, or the second plug plate 301, forms a snap-fit connection with the third through-hole, or with the overlapping hole portion of the first through-hole 203 and the second through-hole 102. The front end surface of the inverted frustum portion 3032 achieves a tight fit and abutment, achieving oil sealing assembly of the first oil plug plug post 204 and the second oil plug plug post 303.

[0026] Preferably, refer to Figure 6 A steel tube 205 is provided in the groove wall of the first raised plug portion 202 forming the groove 2021 through the rubber coating process. The steel tube 205 is used to support and strengthen the strength of the groove 2021. In this way, the second raised plug portion 302 of the outer oil seal plug 30 is plugged in the groove 2021, and the groove wall of the groove 2021 is not easily deformed, which is conducive to the sealing connection between the outer oil seal plug 30 and the inner oil seal plug 20.

[0027] While various embodiments of the present disclosure have been described above, the above descriptions are illustrative, non-exhaustive, and not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A leak-proof electronic cigarette oil filling plug structure, wherein the electronic cigarette is provided with an oil filling port (10), and the oil filling plug is removably plugged into the oil filling port (10), characterized in that: The oil filling plug comprises an inner oil sealing plug (20) and an outer oil sealing plug (30). The inner oil sealing plug (20) comprises a first plug plate (201) and a first protruding plug portion (202) provided on the bottom surface of the first plug plate (201). The first protruding plug portion (202) and the first plug plate (201) are integrally formed with silicone. A groove (2021) is formed inside the first protruding plug portion (202) and on the top surface of the first plug plate (201). A "one" cutout or a "cross" cutout (2022) is provided at the bottom of the groove (2021). The first protruding plug portion (202) is tightly fitted in the oil filling port (10) of the electronic cigarette. The outer oil sealing plug (30) comprises a second plug plate (301) and a second protruding plug portion (302) provided on the bottom of the second plug plate (301). The second protruding plug portion (302) is tightly fitted in the groove (2021).

2. The leak-proof electronic cigarette oil filling plug structure according to claim 1, characterized in that: The length of the first plug plate (201) is greater than the length of the first protruding plug portion (202); a first through hole (203) and a first oil plug plug post (204) are respectively provided on the first plug plate (201) on both sides of the length direction of the first protruding plug portion (202); the first oil plug plug post (204) and the inner oil plug (20) are integrally formed by silicone injection molding; a second through hole (102) and a third through hole (103) are respectively provided on both sides of the oil filling port (10); the first oil plug plug post (204) is plugged into the third through hole (103); and the first through hole (203) and the second through hole (102) overlap.

3. The leak-proof electronic cigarette oil filling plug structure according to claim 2, characterized in that: The length of the second plug plate (301) is greater than the length of the second protruding plug portion (302). A second oil plug plug post (303) and a bottom thinning portion (304) are respectively provided on the second plug plate (301) on both sides of the length direction of the second protruding plug portion (302). The second oil plug plug post (303) is plugged into the overlapping first through hole (203) and the second through hole (102). The bottom thinning portion (304) forms a gap with the outer wall of the electronic cigarette, which is used to pull out the second protruding plug portion (302) from the position of the bottom thinning portion (304).

4. The leak-proof electronic cigarette oil filling plug structure according to claim 3, characterized in that: The second plug plate (301), the second protruding plug portion (302), and the second oil plug plug post (303) of the outer oil sealing plug (30) are integrally formed by injection molding using silicone or TPE soft glue.

5. The leak-proof electronic cigarette oil filling plug structure according to claim 4, characterized in that: The structures of the first oil plug plug column (204) and the second oil plug plug column (303) are both a plug-in end column (3031), the rear end of the plug-in end column (3031) is a through-hole tight-fitting sealing end, and the through-hole tight-fitting sealing end is an inverted frustum portion (3032) extending from the rear end of the plug-in end column (3031), and a cylindrical portion (3033) extending from the rear end of the inverted frustum portion (3032).

6. The leak-proof electronic cigarette oil filling plug structure according to claim 1, characterized in that: A steel pipe (205) is provided in the groove wall of the first protruding plug portion (202) forming the groove (2021) through a rubber coating process, and the steel pipe (205) is used to support and strengthen the strength of the groove (2021).

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