Oil core separation leak-proof structure of electronic cigarette
By incorporating an installation sleeve and a first spring structure into the electronic cigarette, the oil inlet hole is blocked, solving the problem of e-liquid entering the air duct and improving the user experience and health protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAOYUAN ELECTRONICS (DONGGUAN) CO LTD
- Filing Date
- 2025-04-02
- Publication Date
- 2026-05-22
AI Technical Summary
When existing e-cigarettes are inverted or shaken, e-liquid may enter the airflow tube through the oil inlet, causing the e-liquid to be inhaled into the user's mouth, affecting the user experience and health.
The system employs an installation sleeve and a first spring structure to seal the first and second oil inlets, preventing e-liquid from entering the air duct. The first spring pushes the connecting sleeve downward to seal the openings and prevent e-liquid from entering the air duct.
It effectively prevents e-liquid from entering the air tube, improving the user experience and protecting the user's health.
Smart Images

Figure CN224265516U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic cigarette technology, specifically to an oil-wick separation and leak-proof structure for electronic cigarettes. Background Technology
[0002] E-cigarettes are electronic devices that mimic traditional cigarettes. They consist of a device, an atomizer, and a cartridge. Through electric heating, they atomize the e-liquid in the cartridge into an inhalable aerosol, producing smoke and taste similar to traditional cigarettes. E-cigarettes come in various appearances, with some designed to closely resemble real cigarettes. They also offer a variety of flavors, such as fruit, mint, and tobacco. They were initially invented as an alternative to traditional cigarettes, helping smokers reduce nicotine dependence and the health hazards of smoking. Some products on the market address the problem of e-liquid deterioration and flavor degradation caused by prolonged immersion of the atomizer coil in e-liquid. These products store the e-liquid and atomizer coil separately before or during use, reassembling them only when needed.
[0003] A search revealed that Chinese Patent Publication No. CN218185244U discloses a leak-proof coil-separation structure for electronic cigarettes, comprising an oil cup assembly and an atomizer base assembly. The oil cup assembly and atomizer base assembly are stored separately but assembled together during use. During assembly, the atomizer coil on the atomizer base assembly is inserted into and connected to the oil storage chamber of the oil cup assembly. This structure is more practical, efficient, and stable than existing coil-separation structures, effectively solving problems such as leakage, burnt coils, altered e-liquid flavor, and structural deformation found in existing technologies.
[0004] However, this device also has the following drawbacks:
[0005] After the device is assembled, the oil reservoir enters the heating coil support through the oil inlet. If the e-cigarette is inverted or shaken, the e-liquid may enter the air tube and be inhaled into the user's mouth during the next use, causing a bad experience and even affecting the user's health. This device does not solve this problem. Utility Model Content
[0006] The purpose of this invention is to provide an oil core separation and leak-proof structure for electronic cigarettes. By using a mounting sleeve and a first spring in conjunction, the connecting sleeve can be pushed to the bottom of the oil cup shell by the first spring after assembly, thereby sealing the first and second oil inlets and preventing e-liquid from entering the air duct. This avoids e-liquid from being inhaled into the user's mouth, improves the user experience, and protects the user's health, thus solving the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] The oil core separation and leak-proof structure of an electronic cigarette includes an oil cup assembly, which also includes an oil cup shell. The oil cup shell has an oil storage chamber inside, and an installation sleeve is provided on the top of the oil storage chamber. A first spring is provided inside the installation sleeve. The installation sleeve is in a sealed sliding fit with the top of the air guide tube, and a connecting sleeve is fixedly installed on the bottom of the air guide tube. The connecting sleeve is in a sealed sliding connection with the bottom of the oil cup shell.
[0009] It also includes an atomizer core assembly, which includes a base and an atomizer core body. The base is slidably connected to the bottom of the oil cup shell. The atomizer core body is fixedly installed in the middle of the base. The top of the atomizer core body has a smoke outlet. The side wall of the atomizer core body has multiple sets of first oil inlets. The top of the atomizer core body is sealed and snapped into a connecting sleeve. The side wall of the connecting sleeve has a second oil inlet that cooperates with the first oil inlets.
[0010] Preferably, the top of the mounting sleeve is provided with a suction port, the top of the first spring abuts against the inner wall of the top of the mounting sleeve, and the bottom of the first spring abuts against the top of the air guide tube.
[0011] Preferably, limiting blocks are fixedly installed on both sides of the top of the air guide tube, and a limiting groove is formed on the inner wall of the mounting sleeve, with the limiting blocks and the limiting groove slidingly engaged.
[0012] Preferably, telescopic blocks are provided on both sides of the bottom of the oil cup shell, and multiple sets of sliding grooves are provided on the inner wall of the base, with the telescopic blocks slidingly engaging with the sliding grooves.
[0013] Preferably, a limiting plate is fixedly installed on one side of the telescopic block, and the bottom of the other side of the telescopic block is set as an inclined surface. The telescopic block and the limiting plate are slidably installed in the telescopic groove opened around the bottom of the oil cup shell.
[0014] Preferably, a second spring is provided in the telescopic groove, one end of the second spring abutting against the inner wall of the telescopic groove, and the other end of the second spring abutting against the limiting plate.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This utility model uses a combination of an installation sleeve and a first spring, resulting in a simple, convenient, and practical design. When using an electronic cigarette, pressing the oil cup shell downwards allows e-liquid to enter the atomizer core and generate vapor. Upon releasing the sleeve, the first spring automatically pushes the air duct and connecting sleeve downwards, sealing the first and second oil inlets to prevent e-liquid from entering the air duct and thus avoiding inhalation into the user's mouth. This improves the user experience and protects the user's health. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the oil cup shell;
[0019] Figure 3 This is a schematic diagram of the base structure;
[0020] Figure 4 This is a schematic diagram of the oil cup shell in the pressed-down state.
[0021] Figure 5 for Figure 2 Enlarged structural diagram at point A in the middle.
[0022] In the diagram: 1. Oil cup shell; 2. Oil storage chamber; 3. Mounting sleeve; 4. First spring; 5. Air guide tube; 6. Connecting sleeve; 7. Base; 8. Atomizer core body; 9. Smoke outlet; 10. First oil inlet; 11. Second oil inlet; 12. Suction port; 13. Limiting block; 14. Limiting groove; 15. Telescopic block; 16. Slide groove; 17. Limiting plate; 18. Telescopic groove; 19. Second spring. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-5 This utility model provides a technical solution:
[0025] The electronic cigarette's oil core separation and leak-proof structure includes an oil cup assembly, which further includes an oil cup shell 1. The oil cup shell 1 has an oil storage chamber 2 inside, and a mounting sleeve 3 is fixedly connected to the top of the oil storage chamber 2. The mounting sleeve 3 has a suction port 12 on its top. The mounting sleeve 3 and the top of the air duct 5 are in a sealed sliding fit. A first spring 4 is installed inside the mounting sleeve 3, with its top abutting against the inner top wall of the mounting sleeve 3 and its bottom abutting against the top of the air duct 5. Limiting blocks 13 are fixedly installed on both sides of the top of the air duct 5. Limiting grooves 14 are formed on the inner wall of the mounting sleeve 3. The position block 13 and the limiting groove 14 are slidably engaged. The bottom of the air guide tube 5 is fixedly installed with a connecting sleeve 6. The connecting sleeve 6 is slidably and sealingly connected to the bottom of the oil cup shell 1. It also includes an atomizing core assembly, which includes a base 7 and an atomizing core body 8. The base 7 is slidably connected to the bottom of the oil cup shell 1. The atomizing core body 8 is fixedly installed in the middle of the base 7. The top of the atomizing core body 8 is provided with a smoke outlet 9. The side wall of the atomizing core body 8 is provided with multiple sets of first oil inlets 10. The top of the atomizing core body 8 is sealed and snapped into the connecting sleeve 6. The side wall of the connecting sleeve 6 is provided with a second oil inlet 11 that cooperates with the first oil inlet 10.
[0026] By providing a first oil inlet 10 and a second oil inlet 11, a channel can be provided for the e-liquid inside the oil storage chamber 2 to enter the atomizer core body 8. By providing a smoke outlet 9 and an air duct 5, the generated smoke can be directed out from the sucking port 12 for the user to inhale. By providing a first spring 4, the air duct 5 and the connecting sleeve 6 can be pushed downwards, thereby blocking the first oil inlet 10 and the second oil inlet 11, preventing e-liquid from entering the air duct 5, thus avoiding the e-liquid from being inhaled into the user's mouth, improving the user's experience and protecting the user's health.
[0027] Telescopic blocks 15 are provided on both sides of the bottom of the oil cup shell 1. Multiple sets of sliding grooves 16 are opened on the inner wall of the base 7. The telescopic blocks 15 slide with the sliding grooves 16. A limiting plate 17 is fixedly installed on one side of the telescopic block 15. The bottom of the other side of the telescopic block 15 is set as an inclined surface. The telescopic blocks 15 and the limiting plate 17 are slidably installed in the telescopic grooves 18 opened around the bottom of the oil cup shell 1. A second spring 19 is provided in the telescopic grooves 18. One end of the second spring 19 abuts against the inner wall of the telescopic groove 18, and the other end of the second spring 19 abuts against the limiting plate 17.
[0028] By using structures such as the telescopic block 15 and the slide groove 16, the oil cup shell 1 and the atomizer core body 8 can be separated and stored before use or during storage, and then reassembled when in use. This avoids the problem of e-liquid deterioration and poor taste caused by the atomizer core body 8 being soaked in e-liquid for a long time. In addition, the telescopic block 15 can slide in the slide groove 16 in coordination with the movement of the oil cup shell 1, thereby preventing it from affecting the downward movement of the oil cup shell 1.
[0029] In practical use, move the device to the designated position, move the base 7 and align it with the bottom of the oil cup shell 1, and align the top of the atomizing core body 8 with the bottom of the connecting sleeve 6. Then, insert the oil cup shell 1 into the base 7. The telescopic block 15 automatically enters the slide groove 16 during insertion, and the first oil inlet 10 aligns with the second oil inlet 11. At this point, the assembly is complete. When needed, the user can move the oil cup shell 1 to their mouth and align it with the suction port 12 for suction, while manually pushing the base 7 to move the oil cup shell 1 downwards. The base 7 moves internally, and at the same time, the atomizing core body 8 pushes the connecting sleeve 6 and the air duct 5 upward, compressing the first spring 4. Simultaneously, the first oil inlet 10 and the second oil inlet 11 move upward into the oil storage chamber 2, allowing e-liquid to enter the interior of the atomizing core body 8, thereby producing vapor for the user to inhale. After inhalation, the base 7 is released, and the compressed first spring 4 pushes the air duct 5 and the connecting sleeve 6 downward, thereby sealing the first oil inlet 10 and the second oil inlet 11 to prevent e-liquid from entering the air duct 5.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An oil-wick separation and leak-proof structure for electronic cigarettes, characterized in that: The oil cup assembly includes an oil cup shell (1), which has an oil storage chamber (2) inside. The top of the oil storage chamber (2) is provided with an installation sleeve (3), and a first spring (4) is provided inside the installation sleeve (3). The installation sleeve (3) is in a sealed sliding fit with the top of the air guide pipe (5), and a connecting sleeve (6) is fixedly installed at the bottom of the air guide pipe (5). The connecting sleeve (6) is in a sealed sliding connection with the bottom of the oil cup shell (1). It also includes an atomizing core assembly, which includes a base (7) and an atomizing core body (8). The base (7) is slidably connected to the bottom of the oil cup shell (1). The atomizing core body (8) is fixedly installed in the middle of the base (7). The top of the atomizing core body (8) is provided with a smoke outlet (9). The side wall of the atomizing core body (8) is provided with multiple sets of first oil inlets (10). The top of the atomizing core body (8) is sealed and snapped into the connecting sleeve (6). The side wall of the connecting sleeve (6) is provided with a second oil inlet (11) that cooperates with the first oil inlet (10).
2. The oil-wick separation and leak-proof structure for electronic cigarettes according to claim 1, characterized in that: The top of the mounting sleeve (3) is provided with a suction port (12), the top of the first spring (4) abuts against the top inner wall of the mounting sleeve (3), and the bottom of the first spring (4) abuts against the top of the air guide tube (5).
3. The oil-wick separation and leak-proof structure for electronic cigarettes according to claim 1, characterized in that: Limiting blocks (13) are fixedly installed on both sides of the top of the air duct (5), and a limiting groove (14) is opened on the inner wall of the mounting sleeve (3). The limiting blocks (13) and the limiting groove (14) are slidably engaged.
4. The oil-wick separation and leak-proof structure for electronic cigarettes according to claim 1, characterized in that: The bottom sides of the oil cup shell (1) are provided with telescopic blocks (15), and the inner wall of the base (7) is provided with multiple sets of sliding grooves (16), and the telescopic blocks (15) slide in cooperation with the sliding grooves (16).
5. The oil-coil separation and leak-proof structure for electronic cigarettes according to claim 4, characterized in that: A limiting plate (17) is fixedly installed on one side of the telescopic block (15), and the bottom of the other side of the telescopic block (15) is set as an inclined surface. The telescopic block (15) and the limiting plate (17) are slidably installed in the telescopic groove (18) opened around the bottom of the oil cup shell (1).
6. The oil-coil separation and leak-proof structure for electronic cigarettes according to claim 5, characterized in that: A second spring (19) is provided in the telescopic groove (18). One end of the second spring (19) abuts against the inner wall of the telescopic groove (18), and the other end of the second spring (19) abuts against the limiting plate (17).
Citation Information
Patent Citations
Oil core separation and oil leakage prevention structure of electronic cigarette
CN218185244U