Electronic cigarette with external tar bin

Abstract

The electronic cigarette comprises a smoke cartridge assembly and the external oil bin, the smoke cartridge assembly comprises an oil cup and an atomizing core assembly arranged in the oil cup, one side of the external oil bin is provided with an oil injection pipe, the end of the oil injection pipe is sleeved with an oil blocking silicon rubber sleeve, the middle of the oil blocking silicon rubber sleeve is provided with a plurality of notches, and the notches are communicated with the oil cup. One side of the oil cup is provided with a communicating pipe which can penetrate through the middle part of the oil blocking silicon rubber case and is inserted into the oil injection pipe, a fixing mechanism is arranged between the external oil bin and the oil cup, the end part of the communicating pipe is provided with a detachable sealing plug, and the end part of the oil injection pipe is provided with a detachable sealing cover. The external oil bin is additionally arranged, oil can be continuously supplied to the oil cup of the atomizer, the problem that oil overflows easily due to improper oil injection of a consumer when oil is directly and repeatedly injected into the atomizer is solved, the external oil bin is connected with the oil passing channel of the oil cup through silica gel, and meanwhile the external oil bin is connected with the oil cup in a buckling mode through the buckling position. The oil bin is convenient to disassemble, and the user experience is greatly improved.

Description

Technical Field

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

[0002] The characteristics of a disposable electronic cigarette atomization device are that it can be discarded after use. Often, the service lives of the atomization core and the battery core are not well utilized, resulting in a great waste. There are also disposable electronic cigarettes with a large puff count on the market. However, the larger the puff count, the more oil injection is required, so the device volume will be larger, making it very inconvenient to carry and use. At the same time, the higher the oil injection volume, the greater the risk of oil leakage.

[0003] For rechargeable disposable electronic cigarettes, there is currently also a way to make the electronic cigarette capable of repeated oil injection. However, the structure design of the electronic cigarette with repeated oil injection is relatively complex, with many components, and the operation is troublesome. It is easy to cause oil leakage during the oil change process and oil overflow problems due to improper oil injection by consumers. Summary of the Utility Model

[0004] In order to solve the problems of easy oil leakage during repeated oil injection of electronic cigarettes and the complex structure of electronic cigarettes in the prior art, the utility model provides an electronic cigarette with an external oil storage tank.

[0005] The utility model provides an electronic cigarette with an external oil storage tank, which includes a cartridge assembly and an external oil storage tank. The cartridge assembly includes an oil cup and an atomization core assembly arranged in the oil cup. One side of the external oil storage tank is provided with an oil injection pipe, and an oil-blocking silica gel sleeve is sleeved at the end of the oil injection pipe. A plurality of incisions are arranged in the middle of the oil-blocking silica gel sleeve. One side of the oil cup is provided with a communication pipe that can pass through the middle of the oil-blocking silica gel sleeve and be inserted into the oil injection pipe. A fixing mechanism is arranged between the external oil storage tank and the oil cup. A detachable sealing plug is arranged at the end of the communication pipe, and a detachable sealing cover is arranged at the end of the oil injection pipe.

[0006] As a further improvement of the utility model, an oil storage cotton is arranged in the oil cup, and an exhaust groove communicated with the oil injection pipe is arranged between the inner wall of the oil cup and the oil storage cotton and below the oil injection pipe.

[0007] As a further improvement of the utility model, the fixing mechanism includes a fixing hole arranged on the side surface of the oil cup and a fixing buckle arranged on the side surface of the external oil storage tank and adapted to the fixing hole.

[0008] As a further improvement of the present utility model, the electronic cigarette with an external oil tank further includes a cigarette rod assembly. The cigarette rod assembly includes a housing, a PCBA board assembly and a battery disposed in the housing. The upper end of the housing is provided with a first accommodation cavity for inserting the cartridge assembly and the external oil tank. At the bottom of the first accommodation cavity, there are connection pins for supplying power to the atomization core assembly, and the connection pins are electrically connected to the PCBA board assembly.

[0009] As a further improvement of the present utility model, a second accommodation cavity is further provided in the housing below the first accommodation cavity, and the PCBA board assembly and the battery are placed in the second accommodation cavity.

[0010] As a further improvement of the present utility model, a snap limit mechanism is further provided between the first accommodation cavity and the cartridge assembly and the external oil tank.

[0011] As a further improvement of the present utility model, an air inlet channel communicating with the second accommodation cavity is further provided at the bottom of the first accommodation cavity, and an air inlet hole communicating with the outside is provided at the bottom of the second accommodation cavity.

[0012] As a further improvement of the present utility model, the PCBA board assembly includes a PCBA circuit board, a microphone head assembly and a charging interface electrically connected to the PCBA circuit board. An installation hole adapted to the charging interface is provided on one side of the housing.

[0013] As a further improvement of the present utility model, the cut on the oil-blocking silica gel sleeve is a cross cut or a radial cut.

[0014] As a further improvement of the present utility model, there are two fixing holes respectively provided at the upper and lower ends of the communicating pipe, and there are also two fixing buckles respectively provided at the upper and lower ends of the oil injection pipe.

[0015] The beneficial effects of the present utility model are as follows: The present utility model adds an external oil tank, which can continuously supply oil to the oil cup of the atomizer, avoiding the problem that direct repeated refueling of the atomizer is likely to cause oil spillage due to improper refueling by consumers. The oil passage connecting the external oil tank and the oil cup is made of silica gel. At the same time, the external oil tank and the oil cup are connected by snap buckles, which is convenient for disassembling the oil tank and greatly improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an overall structural schematic diagram of an electronic cigarette with an external oil tank according to the present utility model;

[0017] Figure 2 is an exploded structural schematic diagram of an electronic cigarette with an external oil tank according to the present utility model;

[0018] Figure 3It is a sectional view of an electronic cigarette with an external oil tank according to the present utility model;

[0019] Figure 4 It is a schematic exploded view of the external oil tank of an electronic cigarette with an external oil tank according to the present utility model;

[0020] Figure 5 It is a sectional view of the external oil tank of an electronic cigarette with an external oil tank according to the present utility model;

[0021] Figure 6 It is a schematic internal structure view of the oil cup of an electronic cigarette with an external oil tank according to the present utility model;

[0022] Figure 7 It is a schematic structure view of the sealing plug of the connecting pipe of an electronic cigarette with an external oil tank according to the present utility model.

[0023] Reference numerals: 1 - cartridge assembly; 2 - external oil tank; 3 - cigarette rod assembly; 4 - charging interface; 5 - air inlet hole; 6 - sealing plug; 7 - sealing cover; 11 - oil cup; 12 - atomization core assembly; 13 - connecting pipe; 14 - fixing hole; 15 - annular sealing plate; 16 - exhaust groove; 17 - oil storage cotton; 21 - oil injection pipe; 22 - oil blocking silica gel sleeve; 23 - annular clamping plate; 24 - fixing buckle; 31 - first accommodating cavity; 61 - circular main body; 62 - silica gel plug; 63 - handle; 71 - outer shell; 72 - inner sleeve. Detailed implementation manners

[0024] In the description of the present utility model, it should be understood that if there are descriptions related to directions, such as the directions or position relationships indicated by up, down, front, rear, left, right, etc., the direction descriptions can be based on the directions or position relationships shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, so it cannot be understood as a limitation to the present utility model.

[0025] In the description of the present utility model, if there are descriptions of quantities, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, above, below, within, etc. are understood as including the present number. If there are descriptions of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0026] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0027] As shown Figures 1 to 7 in the figure, the utility model discloses an electronic cigarette with an external oil tank, which includes a cartridge assembly 1 and an external oil tank 2. The cartridge assembly 1 includes an oil cup 11 and an atomization core assembly 12 arranged in the oil cup 11. One side of the external oil tank 2 is provided with an oil injection pipe 21, and the end of the oil injection pipe 21 is sleeved with an oil-blocking silica gel sleeve 22. A plurality of incisions are arranged in the middle of the oil-blocking silica gel sleeve 22. One side of the oil cup 11 is provided with a communication pipe 13 that can pass through the middle of the oil-blocking silica gel sleeve 22 and be inserted into the oil injection pipe 21. A fixing mechanism is arranged between the external oil tank 2 and the oil cup 11. A detachable sealing plug 6 is arranged at the end of the communication pipe 13, and a detachable sealing cover 7 is arranged at the end of the oil injection pipe 21.

[0028] During use, when the external oil tank 2 is not needed to replenish oil, at this time, the communication pipe 13 on the oil cup 11 is sealed by the sealing plug 6. At the same time, the oil injection pipe 21 of the external oil tank 2 is sealed by the sealing cover 7, ensuring that no e-liquid will flow out, which is convenient for transportation and storage.

[0029] The sealing plug 6 includes a circular main body 61. One side of the circular main body 61 is provided with a silica gel plug 62 that can be inserted into the communication pipe 13. Two parallel annular protrusions are arranged on the periphery of the silica gel plug 62. A handle 63 is arranged on the other side of the circular main body 61.

[0030] An annular clamping plate 23 is arranged on the side wall of the external oil tank 2 around the oil injection pipe 21. The sealing cover 7 includes a housing 71 and an inner sleeve 72. A child lock structure is arranged between the housing 71 and the inner sleeve 72. A rotary opening structure is arranged between the inner sleeve 72 and the annular clamping plate 23. The child structure is a relatively mature existing technology and will not be elaborated here. After the sealing cover 7 is rotatably buckled with the annular clamping plate 23, the inner sleeve 72 will press on the outside of the oil-blocking silica gel sleeve 22 to achieve a sealing effect. In this application, the oil-blocking silica gel sleeve 22 is sleeved between the oil injection pipe 21 and the annular clamping plate 23, and the thickness is increased at the inner end to tightly fix it between the outside of the oil injection pipe 21 and the annular clamping plate 23, which can effectively prevent the oil-blocking silica gel sleeve 22 from falling off when separated from the communication pipe 13.

[0031] In the utility model, an annular sealing plate 15 that can be inserted between the annular clamping plate 23 and the oil injection pipe 21 is further arranged on the periphery of the communication pipe 13. A sealed state can be formed between the annular sealing plate 15 and the outside of the oil-blocking silica gel sleeve 22 to ensure the seal after the communication pipe 13 and the oil injection pipe 21 are butted.

[0032] In the present utility model, an oil storage cotton 17 is provided inside the oil cup 11. An exhaust groove 16 communicating with the injection tube 21 is provided between the inner wall of the oil cup 11 and the oil storage cotton 17 and below the injection tube 21. The e-liquid in the oil cup 11 is absorbed by the oil storage cotton 17. At this time, a certain gap will be generated in the exhaust groove 16, thereby forming a ventilation channel. When the external oil reservoir 2 is connected to the oil cup 11, the e-liquid in the external oil reservoir will automatically replenish the oil cup 11 to ensure smooth oil injection.

[0033] In the present utility model, the fixing mechanism includes a fixing hole 14 provided on the side of the oil cup 11 and a fixing buckle 24 provided on the side of the external oil reservoir 2 and adapted to the fixing hole 14. When the external oil reservoir 2 is connected to the oil cup 11, the connecting pipe 13 on the oil cup 11 will be inserted into the injection tube 21 of the external oil reservoir 2. At this time, the fixing buckle 24 will be inserted into the fixing hole 14, thereby realizing the limit connection between the external oil reservoir 2 and the oil cup 11, ensuring that they will not be separated and disengaged randomly, and preventing oil leakage. When separation is required, it can be pulled out with a little force by hand.

[0034] In the present utility model, the electronic cigarette with an external oil reservoir further includes a cigarette rod assembly 3. The cigarette rod assembly 3 includes a housing and a PCBA board assembly and a battery provided inside the housing. A first receiving cavity 31 for inserting the cartridge assembly 1 and the external oil reservoir 2 is provided at the upper end of the housing. Connecting pins for supplying power to the atomization core assembly 12 are provided at the bottom of the first receiving cavity 31, and the connecting pins are electrically connected to the PCBA board assembly. The first receiving cavity 31 can play a role in limiting and fixing the assembled cartridge assembly 1 and the external oil reservoir 2, ensuring the reliable connection between the external oil reservoir 2 and the oil cup 11, and having a simple structure and convenient and fast installation.

[0035] In the present utility model, a second receiving cavity is further provided in the housing below the first receiving cavity 31, and the PCBA board assembly and the battery are placed in the second receiving cavity.

[0036] In the present utility model, a buckle limit mechanism is further provided between the first receiving cavity 31 and the cartridge assembly 1 and the external oil reservoir 2 to facilitate the snap limit and fixation between the cartridge assembly 1 and the external oil reservoir 2 and the first receiving cavity 31.

[0037] In the present utility model, an air inlet channel communicating with the second receiving cavity is further provided at the bottom of the first receiving cavity, and an air inlet hole 5 communicating with the outside is provided at the bottom of the second receiving cavity. It is used for the entry of external air.

[0038] In the present utility model, the PCBA board assembly includes a PCBA circuit board and a microphone head assembly and a charging interface 4 electrically connected to the PCBA circuit board. An installation hole adapted to the charging interface 4 is provided on one side of the housing.

[0039] In the present utility model, the incision on the oil-blocking silica gel sleeve 22 is a cross incision or a radial incision. Due to the inherent characteristics of silica gel, even if a cross incision or a radial incision is provided, under normal conditions, it can ensure that the e-liquid will not flow out. And by inserting the connecting pipe 13, the incision can be opened, and it will return to the closed state when the connecting pipe 13 is pulled out. This structure is simple and convenient for the quick access of the external oil tank 2.

[0040] In the present utility model, there are two fixing holes 14 which are respectively arranged at the upper and lower ends of the connecting pipe 13, and there are also two fixing buckles 24 which are respectively arranged at the upper and lower ends of the oil injection pipe 21. This can ensure more stable and reliable connection.

[0041] The present utility model adds an external oil tank 2, which can continuously supply oil to the atomizer oil cup 11. It avoids the problem that direct repeated refueling of the atomizer is likely to cause oil spillage due to improper refueling by consumers. At the same time, the separate sealed shipment of the external oil tank 2 can avoid the risk of oil leakage during shipment.

[0042] In the present utility model, the silica gel is used to connect the oil-passing channel between the external oil tank 2 and the oil cup 11. At the same time, the external oil tank 2 and the oil cup 11 are connected by snap-fitting, which is convenient for the disassembly of the oil tank. At the same time, a tightening force is applied to the seal of the oil-passing channel. The external oil tank 2 is sealed with a sealing cover 7 during shipment and is equipped with a child lock structure. When the external oil tank 2 and the oil cup 11 are snap-fitted and the oil storage amount in the external oil tank 2 is higher than the oil inlet pipe, at the same time, by using the air exchange channel in the oil cup 11, the oil in the external oil tank 2 can automatically refill the oil cup 11, thus realizing automatic refueling and greatly improving the user experience.

[0043] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present utility model.

Claims

1. An electronic cigarette with an external oil tank, characterized in that: It includes a cigarette cartridge assembly and an external oil tank, the cigarette cartridge assembly includes an oil cup and an atomizer core assembly arranged in the oil cup, an oil filling pipe is provided on one side of the external oil tank, an oil-blocking silicone sleeve is provided on the end of the oil filling pipe, a plurality of incisions are provided in the middle of the oil-blocking silicone sleeve, a connecting pipe is provided on one side of the oil cup that can pass through the middle of the oil-blocking silicone sleeve and be inserted into the oil filling pipe, a fixing mechanism is provided between the external oil tank and the oil cup, a detachable sealing plug is provided on the end of the connecting pipe, and a detachable sealing cover is provided on the end of the oil filling pipe.

2. The electronic cigarette with an external oil tank according to claim 1, characterized in that: An oil storage cotton is arranged in the oil cup, and an exhaust groove connected with the oil filling pipe is arranged between the inner wall of the oil cup and the oil storage cotton and below the oil filling pipe.

3. The electronic cigarette with an external oil tank according to claim 1, characterized in that: The fixing mechanism comprises a fixing hole arranged on the side of the oil cup and a fixing buckle arranged on the side of the external oil tank and adapted to the fixing hole.

4. The electronic cigarette with an external oil tank according to claim 1, characterized in that: The electronic cigarette with an external oil tank 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 assembly and the external oil tank. The bottom of the first accommodating cavity is provided with a connecting contact pin for powering the atomization core assembly, and the connecting contact pin is electrically connected to the PCBA board assembly.

5. The electronic cigarette with an external oil tank according to claim 4, characterized in that: A second accommodating cavity is further provided in the shell at the lower end of the first accommodating cavity, and the PCBA board assembly and the battery are placed in the second accommodating cavity.

6. The electronic cigarette with an external oil tank according to claim 4, characterized in that: A buckle limiting mechanism is also provided between the first accommodating chamber, the cigarette cartridge assembly and the external oil tank.

7. The electronic cigarette with an external oil tank according to claim 5, characterized in that: An air inlet passage communicating with the second accommodating chamber is also provided at the bottom of the first accommodating chamber, and an air inlet hole communicating with the outside is provided at the bottom of the second accommodating chamber.

8. The electronic cigarette with an external oil tank according to claim 4, 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. One side of the shell is provided with a mounting hole adapted to the charging interface.

9. The electronic cigarette with an external oil tank according to claim 1, characterized in that: The incision on the oil-blocking silicone sleeve is a cross incision or a radial incision.

10. The electronic cigarette with an external oil tank according to claim 3, characterized in that: There are two fixing holes, which are respectively arranged at the upper and lower ends of the connecting pipe, and there are two fixing buckles, which are respectively arranged at the upper and lower ends of the oil filling pipe.

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