Tobacco tar leakage prevention electronic cigarette capable of balancing air pressure and oil pressure during tobacco tar supplement
By designing a puncture needle assembly and a rotating shaft assembly in the electronic cigarette, the problem of uneven e-liquid replenishment is solved, achieving smooth e-liquid replenishment and air pressure balance, preventing leakage, and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANCHANG IND (SHENZHEN) CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-24
AI Technical Summary
When refilling e-liquid, the e-cigarette's filling channel can easily become blocked by air pressure due to the formation of an e-liquid film, resulting in uneven e-liquid replenishment and affecting the user experience.
A structure including an atomizer, a rotating shaft assembly, a mounting block, and an e-liquid bottle was designed. By setting up a piercing needle assembly and a rotating shaft assembly, the oil film is pierced and the air pressure and oil pressure are balanced to ensure smooth e-liquid replenishment. The opening and closing of the e-liquid channel is controlled by a knob to maintain air pressure balance.
It ensures smooth e-liquid replenishment, avoids leakage, guarantees sufficient e-liquid in the atomizer, reduces leakage and anxiety caused by pressure imbalance, and maintains stable operation.
Smart Images

Figure CN224155120U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic cigarette technology, and in particular to a leak-proof electronic cigarette that balances air pressure and oil pressure when replenishing e-liquid. Background Technology
[0002] In recent years, with the development of science and technology and society, people have gradually realized the harm of tobacco to their health and have gradually restricted or even banned tobacco smoking in certain situations to avoid impacting people's health and the surrounding environment. However, since most smokers are already addicted to tobacco, it is not easy for them to quit completely. As a result, electronic cigarettes have emerged. These are currently popular products on the market that use electric heating to vaporize nicotine-containing liquids. Users can satisfy their needs by inhaling this vapor, and to some extent, they are trending towards replacing tobacco.
[0003] During the use of e-cigarettes, e-liquid consumption is often involved. For refillable e-cigarettes with replaceable cartridges, when the e-liquid is exhausted, it needs to be refilled. However, due to the viscosity of the e-liquid, an oil film can easily form in the refill channel. The air pressure inside the atomizer chamber can also block the oil film, making it difficult to refill the e-liquid and thus affecting the user experience. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a leak-proof electronic cigarette that balances air pressure and oil pressure when replenishing e-liquid.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A leak-proof electronic cigarette that balances air pressure and oil pressure when replenishing e-liquid includes: an atomizer, a rotating shaft assembly, a mounting block, and an e-liquid bottle. The rotating shaft assembly and the mounting block are both located inside the atomizer. The e-liquid bottle includes an inlet. The atomizer has an alignment hole on the side facing the e-liquid bottle. The inlet of the e-liquid bottle is aligned and inserted into the alignment hole. The e-liquid bottle and the atomizer are detachably connected.
[0007] The atomizer contains an atomizing core and an e-liquid filling chamber. The atomizing core is located inside the e-liquid filling chamber, which communicates with the alignment hole. The rotating shaft assembly is transversely inserted into the atomizer and rotatably mounted within it. The mounting block is fitted onto the rotating shaft assembly, and a mounting hole is formed on the mounting block relative to the alignment hole, located inside the alignment hole. The e-liquid bottle's filling port is aligned and inserted into the mounting hole. A piercing needle assembly for balancing air pressure and e-liquid pressure is provided in the mounting hole and the rotating shaft assembly. The piercing needle assembly is used to pierce the e-liquid film.
[0008] In one embodiment, the rotating shaft assembly includes a rotating shaft and a knob sleeved on one end of the rotating shaft. The rotating shaft is hollow and has a flow cavity inside, which communicates with the oil filling chamber. The rotating shaft has a communication port for communicating with the mounting hole. The knob can control the rotating shaft to rotate until the communication port communicates with the mounting hole. The oil filling port, the mounting hole, the communication port, and the flow cavity form an oil filling channel for e-liquid to flow into the oil filling chamber.
[0009] In one embodiment, one end of the rotating shaft with the knob extends out of the atomizer, and the oil filling channel is opened or closed by rotating the knob.
[0010] In one embodiment, a silicone ring is fitted onto the end of the rotating shaft facing the oil filling chamber, and the silicone ring is located at the connection between the rotating shaft and the oil filling chamber.
[0011] In one embodiment, the rotating shaft is fitted with a rotating shaft sealing silicone, which is located between the silicone ring and the knob, and the rotating shaft sealing silicone has a clearance groove relative to the communication port.
[0012] In one embodiment, the mounting block is vertically arranged, the rotating shaft is horizontally inserted into the mounting block, the mounting hole is located at the lower part of the mounting block relative to the rotating shaft, the puncture needle assembly includes two first oil film puncture needles disposed in the mounting hole and a second oil film puncture needle disposed in the flow cavity, a mounting ring is provided in the mounting hole, the outer wall of the mounting ring is connected to the inner wall of the mounting hole, the two first oil film puncture needles are mounted on the mounting ring, both first oil film puncture needles are vertically arranged, and both first oil film puncture needles extend into the oil injection port.
[0013] In one embodiment, the second oil film puncture needle is fixed inside the flow cavity, and the second oil film puncture needle is positioned relative to the center of the communication port, with one end of the second oil film puncture needle facing the communication port.
[0014] In one embodiment, the mounting hole is provided with an oil bottle sealing silicone sealant on the outer wall of the oil inlet, and the oil bottle sealing silicone sealant is arranged in a ring shape inside the mounting hole.
[0015] In one embodiment, a snap-fit assembly for connecting and fixing the e-liquid bottle and the atomizer is provided. The snap-fit assembly includes a snap-fit block disposed outside the e-liquid bottle and a snap-fit groove disposed on the bottom side of the atomizer. The snap-fit block is located on the outside of the e-liquid bottle relative to the filling port. The snap-fit block has a hook on the side facing the atomizer. The snap-fit groove has a locking block for the hook to hold. When the filling port is inserted into the mounting hole, the snap-fit block extends into the snap-fit groove, and the hook is engaged with the locking block.
[0016] In one embodiment, the atomizer includes a top cover, a seal, and a bottom shell, the top cover being snapped into the bottom shell, the atomizing core and the oil filling chamber being located between the top cover and the bottom shell, and the atomizing core being confined within the seal.
[0017] Compared with the prior art, the present invention has at least the following advantages:
[0018] This invention relates to a leak-proof electronic cigarette that balances air and oil pressure during e-liquid refilling. It incorporates a puncture needle assembly to puncture the oil film generated in the filling channel when the e-liquid bottle is inverted for refilling, preventing the air pressure in the atomizer's filling chamber from obstructing the oil film and hindering e-liquid refilling. Furthermore, a rotating shaft assembly allows the filling channel to be closed by turning a knob when refilling is not needed, maintaining air and oil pressure balance whether the atomizer is in use or not, thus preventing leaks. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.
[0020] Figure 1 This utility model provides a structural schematic diagram of an oil-leak-proof electronic cigarette that balances air pressure and oil pressure when replenishing e-liquid;
[0021] Figure 2 This utility model provides a structural schematic diagram of an oil-leakage-proof electronic cigarette that opens the oil injection channel during the balance of air pressure and oil pressure when replenishing e-liquid;
[0022] Figure 3 This utility model provides a schematic diagram of a leak-proof electronic cigarette with a closed oil filling channel that balances air and oil pressure during e-liquid replenishment.
[0023] Figure 4 A cross-sectional view of the atomizer and e-liquid bottle in an e-cigarette that balances air and oil pressure when replenishing e-liquid, as provided by this utility model.
[0024] Figure 5This utility model provides a schematic diagram of the explosion structure of an oil-proof electronic cigarette that balances air pressure and oil pressure when replenishing e-liquid.
[0025] Figure Descriptions: 10. Atomizer; 101. Alignment Hole; 11. Atomizer Core; 12. Filling Chamber; 13. Top Cover; 14. Seal; 15. Bottom Shell; 20. Rotary Shaft Assembly; 21. Rotary Shaft; 211. Flow Chamber; 212. Connecting Port; 22. Knob; 30. Mounting Block; 31. Mounting Hole; 32. Mounting Ring; 40. E-liquid Bottle; 41. Filling Port; 50. Piercing Needle Assembly; 51. First E-film Piercing Needle; 52. Second E-film Piercing Needle; 60. Silicone Ring; 70. Rotary Shaft Sealing Silicone; 71. Relief Groove; 80. E-liquid Bottle Sealing Silicone; 90. Snap-fit Assembly; 91. Snap-fit Block; 911. Snap Hook; 92. Snap-fit Groove; 921. Snap Block. Detailed Implementation
[0026] To facilitate understanding of this utility model, a more comprehensive description of it will be given below with reference to the accompanying drawings.
[0027] A leak-proof e-cigarette that balances air and oil pressure during e-liquid replenishment, refer to Figure 1 and Figure 2 The atomizer includes an atomizer 10, a swivel assembly 20, a mounting block 30, and an e-liquid bottle 40. The swivel assembly 20 and the mounting block 30 are both located inside the atomizer 10. The e-liquid bottle 40 includes an oil filling port 41. The atomizer 10 has an alignment hole 101 on the side facing the e-liquid bottle 40. The oil filling port 41 of the e-liquid bottle 40 is aligned and inserted into the alignment hole 101. The e-liquid bottle 40 and the atomizer 10 are detachably connected.
[0028] Reference Figure 2 The atomizer 10 contains an atomizing core 11 and a filling chamber 12. The atomizing core 11 is located inside the filling chamber 12, which communicates with the alignment hole 101 on the bottom side of the atomizer 10. A rotating shaft assembly 20 is horizontally inserted into the atomizer 10 and rotatably mounted within it. A mounting block 30 is fitted over the rotating shaft assembly 20, and a mounting hole 31 is formed in the mounting block 30 relative to the alignment hole 101. The mounting hole 31 is located inside the alignment hole 101, and the filling port 41 of the e-liquid bottle 40 is inserted into the mounting hole 31. A piercing needle assembly 50 for balancing air pressure and oil pressure is provided within the mounting hole 31 and the rotating shaft assembly 20. The piercing needle assembly 50 is used to pierce the oil film. When the e-liquid bottle 40 is inverted, the piercing needle assembly 50 will pierce the oil film, and the air pressure in the e-liquid chamber 12 will enter the e-liquid bottle 40, allowing the e-liquid solution in the e-liquid bottle 40 to smoothly enter the e-liquid chamber 12 to replenish it until it is full.
[0029] Reference Figure 2 and Figure 3The rotating shaft assembly 20 includes a rotating shaft 21 and a knob 22 sleeved on one end of the rotating shaft 21. The rotating shaft 21 is hollow, and the end of the rotating shaft 21 facing the oil filling chamber 12 is connected to the oil filling chamber 12. A flow cavity 211 is provided inside the rotating shaft 21, and the flow cavity 211 is connected to the oil filling chamber 12. A connecting port 212 for communicating with the mounting hole 31 is opened on the rotating shaft 21. The knob 22 can control the rotation of the rotating shaft 21 so that the connecting port 212 is connected to the mounting hole 31, thereby facilitating the flow of e-liquid in the e-liquid bottle 40 into the oil filling chamber 12 through the oil filling port 41, the mounting hole 31, the connecting port 212, and the flow cavity 211. It should be noted that the oil filling port 41, the mounting hole 31, the connecting port 212, and the flow cavity 211 form an oil filling channel for the e-liquid to flow into the oil filling chamber 12.
[0030] Reference Figure 2 and Figure 3 One end of the rotating shaft 21, fitted with a knob 22, extends outside the atomizer 10, allowing the knob 22 to be positioned outside the atomizer 10 for easy rotation by the user. Rotating the knob 22 controls the rotation of the rotating shaft 21, thus controlling the connection between the connecting port 212 and the mounting hole 31. When the knob 22 is rotated to 90°, the rotating shaft 21 opens the e-liquid filling channel, connecting the connecting port 212 to the mounting hole 31. The atomizer 10 is inverted to replenish e-liquid into the e-liquid filling chamber 12. After the e-liquid is full, the knob 22 is rotated back to close the connection between the connecting port 212 and the mounting hole 31, thus shutting off the e-liquid filling channel. When the filling channel is closed, it prevents the flow of e-liquid between the filling chamber 12 of the atomizer 10 and the e-liquid bottle 40. This ensures that e-liquid in the filling chamber 12 will not flow into the e-liquid bottle 40 during atomizer 10 operation, guaranteeing sufficient e-liquid supply and preventing the atomizer coil 11 from burning. Secondly, with the filling channel closed, e-liquid in the filling chamber 12 of the atomizer 10 will not flow into the e-liquid bottle 40 during rest or operation, ensuring a constant supply of e-liquid and avoiding the anxiety of needing to refill. Finally, with the filling channel closed, it stabilizes the air pressure balance between the filling chamber 12 of the atomizer 10 and the e-liquid bottle 40. This maintains air and oil pressure balance during use (e.g., when placed sideways, upside down, on a table, in a pocket, or carried outdoors), reducing impact on the atomizer coil 11 and effectively preventing e-liquid leakage from the coil 11.
[0031] Furthermore, referring to Figure 2 and Figure 3 A silicone ring 60 is fitted on one end of the rotating shaft 21 facing the oil filling chamber 12. The silicone ring 60 is located at the connection between the rotating shaft 21 and the oil filling chamber 12. The silicone ring 60 is used to prevent e-liquid from leaking out from the connection between the rotating shaft 21 and the oil filling chamber 12.
[0032] Furthermore, referring to Figure 2 and Figure 3The rotating shaft 21 is fitted with a rotating shaft sealing silicone 70, which is located between the silicone ring 60 and the knob 22. The rotating shaft sealing silicone 70 is used to ensure the seal between the rotating shaft 21 and the atomizer 10 when the rotating shaft 21 rotates. It should be noted that when the rotating shaft 21 rotates, the rotating shaft sealing silicone 70 rotates with the rotating shaft 21. The rotating shaft sealing silicone 70 has a relief groove 71 at the position relative to the connecting port 212. The relief groove 71 is adapted to the size of the connecting port 212 to prevent the rotating shaft sealing silicone 70 from obstructing the flow of e-liquid from the connecting port 212.
[0033] Furthermore, referring to Figure 2 and Figure 3 The mounting block 30 is fixed inside the atomizer 10 and is vertically arranged. The rotating shaft 21 passes horizontally through the mounting block 30. The mounting hole 31 is located at the lower part of the mounting block 30 relative to the rotating shaft 21. The mounting hole 31 communicates with the flow chamber 211 through the connecting port 212 and the oil filling port 41. The piercing needle assembly 50 includes two first oil film piercing needles 51 disposed in the mounting hole 31 and a second oil film piercing needle 52 disposed in the flow chamber 211. A mounting ring 32 is provided in the mounting hole 31, and the outer wall of the mounting ring 32 is connected to the inner wall of the mounting hole 31. The two first oil film piercing needles 51 are mounted on the mounting ring 32. Both first oil film piercing needles 51 are vertically arranged and extend into the oil filling port 41 of the e-liquid bottle 40. The two first oil film piercing needles 51 are respectively distributed on both sides of the mounting block 30 relative to the oil filling port 41. The filling port 41 of the e-liquid bottle 40 extends into the mounting hole 31 until the bottle mouth of the e-liquid bottle 40 abuts against the mounting ring 32, and two first oil film piercing needles 51 extend into the filling port 41.
[0034] Reference Figure 2 and Figure 3 The second oil film piercing needle 52 is fixed in the flow cavity 211, and the second oil film piercing needle 52 is set at the center position relative to the connecting port 212. When the knob 22 is rotated so that the rotating shaft 21 rotates to the point where the connecting port 212 is opposite to the mounting hole 31, the second oil film piercing needle 52 is set vertically, with one end of the second oil film piercing needle 52 facing the connecting port 212. This allows the two first oil film piercing needles 51 to pierce the oil film when the e-liquid bottle 40 is inverted to replenish e-liquid, so that the air pressure in the e-liquid chamber 12 enters the e-liquid bottle 40. The e-liquid solution can flow smoothly into the flow cavity 211 through the mounting hole 31 and the connecting port 212. The second oil film piercing needle 52 in the flow cavity 211 will pierce the oil film present at the connecting port 212, so that the e-liquid solution can flow smoothly from the flow cavity 211 into the e-liquid chamber 12 until it is full. By adding a puncture needle assembly 50, the problems of uneven e-liquid filling, failure to replenish e-liquid into the e-liquid filling chamber 12 after inverting the container, and difficulty in replenishing e-liquid due to insufficient air pressure exchange between the e-liquid in the e-liquid filling chamber 12 and the e-liquid in the e-liquid bottle 40 are solved.
[0035] Furthermore, referring to Figure 2 and Figure 3 The mounting hole 31 is provided with an oil bottle sealing silicone 80 on the outer wall of the oil filling port 41. The oil bottle sealing silicone 80 is arranged in a ring inside the mounting hole 31 so that when the oil filling port 41 of the e-liquid bottle 40 is inserted into the mounting hole 31, the sealing between the e-liquid bottle 40 and the mounting block 30 can be guaranteed.
[0036] Furthermore, referring to Figure 4 and Figure 5 A snap-fit assembly 90 for connecting and fixing is provided between the e-liquid bottle 40 and the atomizer 10. The snap-fit assembly 90 includes a snap-fit block 91 located outside the e-liquid bottle 40 and a snap-fit groove 92 located on the bottom side of the atomizer 10. The snap-fit block 91 is located on the outside of the e-liquid bottle 40 relative to the filling port 41. A hook 911 is provided on the side of the snap-fit block 91 facing the atomizer 10. The opening depth of the snap-fit groove 92 is adapted to the snap-fit block 91. A locking block 921 for the hook 911 to hook in the locking groove 92 is provided in the locking groove 92. When the filling port 41 of the e-liquid bottle 40 is inserted into the mounting hole 31, the snap-fit block 91 is simultaneously inserted into the locking groove 92 until the hook 911 at one end of the snap-fit block 91 hooks onto the locking block 921 in the locking groove 92, so as to realize the snap-fit fixing between the e-liquid bottle 40 and the atomizer 10. After knob 22 closes the connection between the connecting port 212 and the mounting hole 31, the e-liquid bottle 40 can be removed and replaced. After removing the bottle, the e-liquid in the atomizer 10's filling chamber 12 will not leak out, thus eliminating the hassle of wiping away spilled e-liquid when replacing the bottle. Even when the e-liquid bottle 40 is removed from the atomizer 10 and not installed, the atomizer 10 can still be used normally by drawing e-liquid from the filling chamber 12.
[0037] Furthermore, referring to Figure 5 The atomizer 10 includes an upper cover 13, a sealing element 14, and a bottom shell 15. The upper cover 13 and the bottom shell 15 are fastened together. The atomizing core 11 and the oil filling chamber 12 are both located between the upper cover 13 and the bottom shell 15, and the atomizing core 11 is confined within the sealing element 14.
[0038] This invention incorporates a piercing needle assembly 50 to puncture the oil film generated in the filling channel when the e-liquid bottle 40 is inverted for e-liquid filling. This prevents the air pressure in the filling chamber 12 of the atomizer 10 from blocking the oil film and causing difficulties in replenishing e-liquid. Furthermore, a rotating shaft assembly 20 is provided so that the filling channel can be closed by rotating the knob 22 when e-liquid replenishment is not needed. This maintains air pressure and oil pressure balance when the atomizer 10 is in use or not, preventing oil leakage.
[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A leak-proof electronic cigarette that balances air and oil pressure during e-liquid replenishment, characterized in that, include: The atomizer (10), the swivel assembly (20), the mounting block (30), and the e-liquid bottle (40) are provided. The swivel assembly (20) and the mounting block (30) are both located inside the atomizer (10). The e-liquid bottle (40) includes an oil inlet (41). The atomizer (10) has an alignment hole (101) on the side facing the e-liquid bottle (40). The oil inlet (41) of the e-liquid bottle (40) is aligned and inserted into the alignment hole (101). The e-liquid bottle (40) and the atomizer (10) are detachably connected. The atomizer (10) is provided with an atomizing core (11) and an oil filling chamber (12). The atomizing core (11) is located inside the oil filling chamber (12), which is connected to the alignment hole (101). The rotating shaft assembly (20) is transversely inserted into the atomizer (10) and is rotatably disposed within the atomizer (10). The mounting block (30) is sleeved on the outside of the rotating shaft assembly (20). The mounting block (30) has a mounting hole (31) at a position relative to the alignment hole (101). The mounting hole (31) is located inside the alignment hole (101). The oil filling port (41) of the e-liquid bottle (40) is aligned and inserted into the mounting hole (31). The mounting hole (31) and the rotating shaft assembly (20) are provided with a piercing needle assembly (50) for balancing air pressure and oil pressure. The piercing needle assembly (50) is used to pierce the oil film.
2. The leak-proof electronic cigarette that balances air and oil pressure during e-liquid replenishment according to claim 1, characterized in that, The rotating shaft assembly (20) includes a rotating shaft (21) and a knob (22) sleeved on one end of the rotating shaft (21). The rotating shaft (21) is hollow and has a flow cavity (211) inside. The flow cavity (211) is connected to the oil filling chamber (12). The rotating shaft (21) has a connecting port (212) for communicating with the mounting hole (31). The knob (22) can control the rotating shaft (21) to rotate until the connecting port (212) communicates with the mounting hole (31). The oil filling port (41), the mounting hole (31), the connecting port (212) and the flow cavity (211) form an oil filling channel for the e-liquid to flow into the oil filling chamber (12).
3. The leak-proof electronic cigarette that balances air and oil pressure during e-liquid replenishment according to claim 2, characterized in that, One end of the rotating shaft (21) fitted with the knob (22) extends out of the atomizer (10), and the oil filling channel can be opened or closed by rotating the knob (22).
4. The leak-proof electronic cigarette that balances air and oil pressure during e-liquid replenishment according to claim 3, characterized in that, A silicone ring (60) is fitted on one end of the rotating shaft (21) facing the oil filling chamber (12), and the silicone ring (60) is located at the connection between the rotating shaft (21) and the oil filling chamber (12).
5. A leak-proof electronic cigarette that balances air and oil pressure during e-liquid replenishment according to claim 4, characterized in that, The rotating shaft (21) is covered with a rotating shaft sealing silicone (70), which is located between the silicone ring (60) and the knob (22). The rotating shaft sealing silicone (70) has a relief groove (71) relative to the communication port (212).
6. A leak-proof electronic cigarette that balances air and oil pressure during e-liquid replenishment according to claim 5, characterized in that, The mounting block (30) is vertically arranged, and the rotating shaft (21) is horizontally inserted into the mounting block (30). The mounting hole (31) is located at the lower part of the mounting block (30) relative to the rotating shaft (21). The puncture needle assembly (50) includes two first oil film puncture needles (51) disposed in the mounting hole (31) and a second oil film puncture needle (52) disposed in the flow cavity (211). The mounting hole (31) is provided with a mounting ring (32). The outer wall of the mounting ring (32) is connected to the inner wall of the mounting hole (31). The two first oil film puncture needles (51) are mounted on the mounting ring (32). Both first oil film puncture needles (51) are vertically arranged and extend into the oil injection port (41).
7. A leak-proof electronic cigarette that balances air and oil pressure during e-liquid replenishment according to claim 6, characterized in that, The second oil film puncture needle (52) is fixed inside the flow cavity (211), and the second oil film puncture needle (52) is positioned relative to the center of the communication port (212), with one end of the second oil film puncture needle (52) facing the communication port (212).
8. A leak-proof electronic cigarette that balances air and oil pressure during e-liquid replenishment according to claim 6, characterized in that, The mounting hole (31) is provided with an oil bottle sealing silicone (80) on the outer wall of the oil inlet (41), and the oil bottle sealing silicone (80) is arranged in a ring inside the mounting hole (31).
9. A leak-proof electronic cigarette that balances air and oil pressure during e-liquid replenishment according to claim 1, characterized in that, A snap-fit assembly (90) for connecting and fixing is provided between the e-liquid bottle (40) and the atomizer (10). The snap-fit assembly (90) includes a snap-fit block (91) located outside the e-liquid bottle (40) and a snap-fit groove (92) located on the bottom side of the atomizer (10). The snap-fit block (91) is located on the outside of the e-liquid bottle (40) relative to the filling port (41). The snap-fit block (91) has a hook (911) on the side facing the atomizer (10). The snap-fit groove (92) has a locking block (921) for the hook (911) to hold. When the filling port (41) is inserted into the mounting hole (31), the snap-fit block (91) is inserted into the snap-fit groove (92), and the hook (911) is hooked onto the locking block (921).
10. A leak-proof electronic cigarette that balances air and oil pressure during e-liquid replenishment according to claim 1, characterized in that, The atomizer (10) includes an upper cover (13), a sealing element (14), and a bottom shell (15). The upper cover (13) is fastened to the bottom shell (15). The atomizing core (11) and the oil filling chamber (12) are both located between the upper cover (13) and the bottom shell (15), and the atomizing core (11) is confined within the sealing element (14).