A sealing ring for electronic cigarettes and an electronic cigarette

Abstract

The utility model discloses a kind of sealing ring for electronic cigarette and electronic cigarette, wherein the sealing ring for electronic cigarette includes main ring and vice ring, the first end surface of the one side of main ring is provided with first lip and second lip that protrude outward along the axial direction, wherein first lip is close to inner diameter surface setting;Accommodating groove is formed between first lip and second lip, the vice ring is embedded in accommodating groove, and the vice ring protrudes from first lip, second lip in axial direction setting;The outer diameter surface of the main ring is provided with at least one lip.The sealing ring for electronic cigarette of the utility model realizes efficient sealing by the collaborative design of main ring and vice ring, main ring provides structural support and basic sealing, vice ring enhances sealing and wear resistance, and improves reliability.

Description

Technical Field

[0001] This utility model relates to the field of electronic cigarette technology, and in particular to a sealing ring for electronic cigarettes and an electronic cigarette. Background Technology

[0002] As an electronic device to replace traditional cigarettes, e-cigarettes offer numerous advantages over traditional cigarettes: they do not contain harmful tar components or carcinogens; they do not burn, thus eliminating the various harmful chemical substances produced by combustion; they do not cause harm to others or pollute the environment with secondhand smoke; and they pose no fire hazard, allowing their use in no-smoking and no-fire areas. The basic structure of an e-cigarette mainly includes a mouthpiece, atomizer, vaporizer, and battery. Its working principle involves the battery providing power to drive the vaporizer to heat the e-liquid and convert it into vapor, which the user inhales through the mouthpiece, achieving a non-combustion smoking experience.

[0003] Electronic cigarettes produce vapor by atomizing e-liquid for users to inhale. Refillable e-cigarettes, in particular, require an atomizer housing to hold the e-liquid, made of transparent glass for easy observation of the remaining amount. Over time, the atomizer coil inside the atomizer suffers from reduced atomization efficiency and a deterioration in flavor due to e-liquid residue and carbon buildup from heating. This necessitates periodic disassembly of the atomizer housing for maintenance or cleaning, such as coil replacement, to ensure the e-cigarette's performance and hygiene. However, existing e-cigarette sealing structures, such as the circumferential seal of an O-ring directly fitted onto the atomizer housing, rely on a radial tight fit. Frequent disassembly and reassembly can lead to wear and loosening due to rotation or vibration, creating gaps and insufficient sealing reliability, failing to meet the application requirements of periodic atomizer housing disassembly and reassembly. Therefore, there is an urgent need to design a sealing ring and e-cigarette specifically for electronic cigarettes. Summary of the Invention

[0004] The purpose of this utility model is to provide a sealing ring and an electronic cigarette for electronic cigarettes, which solves the problem that the sealing structure of existing electronic cigarettes is not reliable enough and cannot meet the application requirements of periodic disassembly and assembly of the atomizer cover.

[0005] To achieve this objective, the present invention adopts the following technical solution: A sealing ring for electronic cigarettes includes a main ring and a secondary ring. A first lip and a second lip are provided on a first end face on one side of the main ring, protruding outward along the axial direction. The first lip is located close to the inner diameter surface. A receiving groove is formed between the first lip and the second lip. The secondary ring is embedded in the receiving groove and protrudes outward from the first lip and the second lip in the axial direction. At least one lip is provided on the outer diameter surface of the main ring.

[0006] Furthermore, the first lip has a first surface extending axially on the side near the receiving groove, and the second lip has a third surface on the side near the receiving groove. The third surface is inclined toward the first lip and toward the first end face. The sub-ring is tangent to the first surface, the third surface, and the bottom surface of the receiving groove.

[0007] Furthermore, the second lip protrudes axially from the first lip; The first lip has a second surface on the side of the inner diameter surface near the main ring, and the second surface faces the inner diameter surface and is inclined toward the first end face.

[0008] Furthermore, the outer diameter surface of the main ring is provided with a third lip and a fourth lip that protrude radially outward, and the maximum outer diameter of the third lip is greater than the maximum outer diameter of the fourth lip.

[0009] Furthermore, the fourth lip is located at the intersection of the outer diameter surface and the second end face of the main ring, and the fourth lip protrudes axially from the second end face, wherein the second end face is located on the side of the main ring opposite to the first end face; A fifth lip protrudes outward along the axial direction on the second end face, and a fourth lip protrudes outward from the fifth lip in the axial direction.

[0010] Furthermore, the fifth lip has a fourth surface extending axially on the side near the inner diameter surface of the main ring; the fifth lip has a fifth surface on the side away from the inner diameter surface, and the fifth surface is inclined towards the inner diameter surface and away from the second end face.

[0011] Furthermore, the material hardness of the secondary ring is less than that of the primary ring.

[0012] Furthermore, the secondary ring is an O-ring; The inner diameter surface of the main ring is a continuous cylindrical surface.

[0013] An electronic cigarette includes a sealing ring for the electronic cigarette, a mouthpiece, an atomizing cover, an atomizer, and a battery. One end of the atomizing cover is detachably connected to the mouthpiece, and the other end is detachably connected to the atomizer. The atomizer is electrically connected to the battery. The sealing ring for the electronic cigarette is installed between the outer shell of the atomizing cover and the outer shell of the mouthpiece, and between the outer shell of the atomizing cover and the outer shell of the atomizer, wherein the first end face faces the side of the atomizing cover.

[0014] Furthermore, the connection between the mouthpiece, the atomizer, and the atomizing cover is provided with a sealing groove for accommodating the sealing ring for the electronic cigarette; The atomizing cover is connected to the outer shell of the mouthpiece and to the outer shell of the atomizer by threads.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The sealing ring for electronic cigarettes provided by this utility model has a secondary ring embedded in a receiving groove located on the first end face. The secondary ring protrudes axially from the first lip and the second lip. On the one hand, during use, the sealing ring is installed at the connection between the atomizer end face and the electronic cigarette shell, with the first end face facing the atomizer end face, i.e., end face sealing is adopted. End face sealing has better sealing stability and installation convenience than circumferential surface sealing because it can directly withstand axial pressure, reducing the risk of displacement and meeting the needs of frequent disassembly. On the other hand, if the O-ring is directly placed on the circumferential surface outside the atomizer, the sealing method of circumferential surface sealing is prone to wear and loosening due to rotation or vibration. Since circumferential surface sealing relies on radial tight fit, gaps are easily generated under frequent disassembly, reducing sealing reliability. On the other hand, the main ring provides structural support and basic sealing, while the secondary ring further enhances the end face sealing effect. When under pressure, the secondary ring undergoes elastic deformation, filling the microscopic gap between the main ring and the sealing surface, forming an additional sealing barrier. Furthermore, during the installation of the atomizer cover, the atomizer cover first contacts the secondary ring. After the secondary ring undergoes a certain amount of deformation, the atomizer cover then contacts the lip of the main ring. During this process, there is friction between the atomizer cover and the secondary ring, causing the secondary ring to tend to move, such as rotating or even slightly rotating. Even if friction occurs between the secondary and main rings, the wear occurs in the receiving grooves of the secondary and main rings, not directly on the lip of the main ring. Thus, even if wear occurs, it will not affect the overall sealing effect and can further meet the needs of frequent disassembly. If only the main ring is installed, the end face of the atomizer cover directly contacts the lip of the main ring first, and there is friction between the two, causing the main ring to tend to move, such as rotating or even slightly rotating. Friction will also occur between the main ring and the outer shell of the e-cigarette, directly wearing down the lip, which directly affects the sealing performance at the connection. In other words, the sealing ring for e-cigarettes described in this utility model achieves efficient sealing through the collaborative design of the main and secondary rings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a three-dimensional schematic diagram of the sealing ring for electronic cigarettes in this utility model; Figure 2 This is a cross-sectional view of the sealing ring for electronic cigarettes in this utility model; Figure 3 This is a cross-sectional view of the main ring and the secondary ring in this utility model. For the sake of showing the structure, the section lines are not marked in the figure. Figure 4 This is a cross-sectional view of the electronic cigarette in this utility model; Figure 5 This utility model Figure 4 Enlarged diagram of point A in the middle.

[0019] Diagram descriptions: 1. Main ring; 11. Outer diameter surface; 12. Inner diameter surface; 13. First end face; 131. Receiving groove; 14. Second end face; 15. First lip; 151. First surface; 152. Second surface; 16. Second lip; 161. Third surface; 17. Third lip; 18. Fourth lip; 19. Fifth lip; 191. Fourth surface; 192. Fifth surface; 2. Sub-ring; 3. Sealing ring for electronic cigarettes; 4. Mouthpiece; 5. Atomizer cover; 6. Atomizer; 7. Battery; 8. Sealing groove. Detailed Implementation

[0020] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1: This embodiment provides a sealing ring for electronic cigarettes, used to provide a reliable sealing function in electronic cigarettes, preventing e-liquid leakage and ensuring a tight connection between components. Figures 1-2 As shown, the sealing ring for electronic cigarettes includes a main ring 1 and a secondary ring 2. The main ring 1 provides primary sealing support and structural stability, while the secondary ring 2 enhances the sealing effect and reduces wear on the lip during installation. The main ring 1 has an inner diameter surface 12, an outer diameter surface 11, and a first end face 13 and a second end face 14 located on both sides. Figure 3As shown, a first lip 15 and a second lip 16 protruding outward along the axial direction are provided on the first end face 13 on one side of the main ring 1. The first lip 15 and the second lip 16 form a double-lip sealing structure, providing redundant sealing protection through two independent sealing lips. When one lip fails due to wear or deformation, the other lip can still maintain the sealing effect, thereby significantly improving the overall sealing reliability. The first lip 15 is located close to the inner diameter surface 12. A receiving groove 131 is formed between the first lip 15 and the second lip 16, and the sub-ring 2 is embedded in the receiving groove 131 to ensure that the position of the sub-ring 2 is relatively fixed. The sub-ring 2 protrudes axially from the first lip 15 and the second lip 16, so that the sub-ring 2 will first contact the sealing surface during installation. The initial contact of the sub-ring 2 forms a preliminary sealing barrier and guides the lips of the main ring 1 to gradually enter position, achieving a pre-sealing effect. At least one lip is provided on the outer diameter surface 11 of the main ring 1 for cooperating with the outer shell to provide radial sealing. In a specific embodiment, the first lip 15 has an axially extending first surface 151 on the side near the receiving groove 131, providing a stable support surface to restrict the movement of the sub-ring 2 and guide it into place. The second lip 16 has a third surface 161 on the side near the receiving groove 131. The third surface 161 is inclined towards the first lip 15 and towards the first end face 13. The inclined design guides the sub-ring 2 into place and, in the event of leakage, guides the e-liquid downwards to avoid accumulation and further leakage. The receiving groove 131 is axially recessed and has a bottom surface, which is located at the deepest point axially within the receiving groove 131. The sub-ring 2 is tangentially disposed to the first surface 151, the third surface 161, and the bottom surface of the receiving groove 131, ensuring uniform contact and reducing local stress. At the same time, multiple contact points form multiple sealing lines, increasing the sealing path and improving the sealing effect. The second lip 16 protrudes axially from the first lip 15, enabling it to perform the primary sealing function. Due to its greater protrusion height, it deforms more under the same installation pressure, resulting in stronger sealing pressure and improved sealing performance. The first lip 15 has a second surface 152 on the side near the inner diameter surface 12 of the main ring 1. This second surface 152 is inclined towards the inner diameter surface 12 and towards the first end face 13. This inclined design optimizes the e-liquid leakage path, guiding leaked material away from the sealing area and reducing leakage risk. The material hardness of the secondary ring 2 is less than that of the main ring 1, making it easier to deform to adapt to irregular surfaces. After deformation, the secondary ring 2 can better fill the gap in the receiving groove 131, ensuring full contact between the second lip 16 and the sealing surface. Simultaneously, the soft secondary ring 2 reduces wear, extends lifespan, and provides a good sealing effect, while the main ring 1 maintains shape stability. The main ring 1 can be made of a high-hardness material such as fluororubber to provide rigid support, while the secondary ring 2 can be made of a low-hardness material such as silicone rubber to enhance sealing adaptability. This combination meets the hardness requirements.In a specific embodiment, the secondary ring 2 is an O-ring with a standard circular cross-section for easy production and installation. During installation, the first end face 13 is close to the end face of the atomizing cover 5, forming a direct end face seal to prevent leakage.

[0024] The outer diameter surface 11 of the main ring 1 is provided with a third lip 17 and a fourth lip 18 that protrude radially outwards. These provide an additional radial sealing layer, forming a double-lip seal structure on the outer diameter surface 11 and enhancing the redundancy of the radial seal. The maximum outer diameter of the third lip 17 is larger than the maximum outer diameter of the fourth lip 18, causing the third lip 17 to protrude radially beyond the fourth lip 18. This allows the third lip 17 to contact the outer shell first, guiding the installation process and preferentially forming a sealing contact, reducing installation resistance. In a specific embodiment, the fourth lip 18 is located at the intersection of the outer diameter surface 11 and the second end face 14 of the main ring 1, and the fourth lip 18 protrudes axially beyond the second end face 14. This allows the fourth lip 18 to simultaneously cover both the outer diameter surface 11 and the second end face 14, achieving multi-directional sealing, reducing the number of individual lips, and preventing leaked e-liquid from seeping into the outer diameter surface 11 from the second end face 14, thus sharing the sealing pressure of the third lip 17. The second end face 14 is located on the side of the main ring 1 opposite to the first end face 13. A fifth lip 19 protrudes outward along the axial direction on the second end face 14, forming a double-lip sealing structure and improving the reliability of the seal. A fourth lip 18 protrudes axially from the fifth lip 19. Under the same extrusion pressure, the height difference allows for greater deformation of the fourth lip 18, generating stronger sealing force and optimizing the sealing effect. The fifth lip 19 has an axially extending fourth surface 191 on the side near the inner diameter surface 12 of the main ring 1, forming a temporary storage cavity with the inner diameter surface 12 to accommodate any e-liquid that may leak from the inner diameter surface 12, preventing direct overflow and forming a multi-stage sealing structure to enhance the sealing effect. The fifth lip 19 has a fifth surface 192 on the side away from the inner diameter surface 12. The fifth surface 192 is inclined towards the inner diameter surface 12 and away from the second end face 14. This inclined design optimizes the formation of the sealing line and guides the backflow of leaked material, enhancing the continuity of the seal. In a specific embodiment, the inner diameter surface 12 of the main ring 1 is a continuous cylindrical surface, that is, no lip structure is provided on the inner diameter surface 12. As a stable support surface, it avoids stress concentration and provides uniform support force, ensuring that the sealing ring maintains its shape stability during installation and use.

[0025] The sealing ring for electronic cigarettes provided by this utility model has a secondary ring 2 embedded in a receiving groove 131 located on the first end face 13. The secondary ring 2 protrudes axially from the first lip 15 and the second lip 16. On the one hand, during use, the sealing ring for electronic cigarettes is installed at the connection between the end face of the atomizer 5 and the electronic cigarette shell, with the first end face 13 facing the end face of the atomizer 5, i.e., end face sealing is adopted. End face sealing has better sealing stability and installation convenience than circumferential surface sealing because end face sealing can directly withstand axial pressure, reducing the risk of displacement; while circumferential surface sealing, such as directly putting the O-ring on the circumferential surface outside the atomizer 5, is prone to wear and loosening due to rotation or vibration. Since circumferential surface sealing relies on radial tight fit, gaps are easily generated under frequent disassembly, reducing sealing reliability. On the other hand, the main ring 1 provides structural support and basic sealing, and the secondary ring 2 further enhances the end face sealing effect. The secondary ring 2 undergoes elastic deformation under pressure, filling the microscopic gap between the main ring 1 and the sealing surface, forming an additional sealing barrier. Furthermore, when installing the atomizer cover 5, the atomizer cover 5 first contacts the secondary ring 2. After the secondary ring 2 undergoes a certain amount of deformation, the atomizer cover 5 then contacts the lip of the main ring 1. During this process, there is friction between the atomizer cover 5 and the secondary ring 2, which causes the secondary ring 2 to have a tendency to move, such as a rotational tendency or even a slight rotation. Even if friction occurs between the secondary ring 2 and the main ring 1, the wear location is the receiving groove 131 of the secondary ring 2 and the main ring 1, and it will not directly wear the lip of the main ring 1. Thus, even if wear occurs, it will not affect the overall sealing effect. If only the main ring 1 is set, the end face of the atomizer cover 5 directly contacts the lip of the main ring 1 first, and there is friction between the two, causing the main ring 1 to have a tendency to move, such as a rotational tendency or even a slight rotation. Friction will also occur between the main ring 1 and the outer shell of the electronic cigarette, which will directly wear the lip, thus directly affecting the sealing performance of the connection. That is, the sealing ring for electronic cigarettes described in this utility model achieves efficient sealing through the collaborative design of the main ring 1 and the secondary ring 2.

[0026] Example 2: This embodiment provides an electronic cigarette whose sealed design ensures leakage prevention during use, improving safety. It also facilitates user disassembly for maintenance and cleaning, enhancing maintainability and user experience. Figures 4-5As shown, the electronic cigarette includes the sealing ring 3 described in Embodiment 1, as well as a mouthpiece 4, an atomizing cover 5, an atomizer 6, and a battery 7. One end of the atomizing cover 5 is detachably connected to the mouthpiece 4, and the other end is detachably connected to the atomizer 6. The atomizer 6 is electrically connected to the battery 7. The mouthpiece 4 is used for inhalation by the user. The atomizing cover 5 contains e-liquid and connects all parts. The atomizer 6 heats and atomizes the e-liquid. The battery 7 provides power. When the electronic cigarette is working, the battery 7 powers and activates the atomizer 6, heating the e-liquid and converting it into vapor, which the user inhales through the mouthpiece 4 to achieve a smoking experience. It should be noted that a switch is provided on the circuit connecting the atomizer 6 and the battery 7 to control the on / off state of the circuit, used to control the start and stop of the electronic cigarette to ensure safe use. In a specific embodiment, the battery 7 is a rechargeable battery 7, which is reusable, economical, and environmentally friendly. It should be noted that the electronic cigarette is provided with a charging port for charging the battery 7. The sealing ring 3 for electronic cigarettes is installed between the outer shell of the atomizer cover 5 and the mouthpiece 4, and between the atomizer cover 5 and the outer shell of the atomizer 6, ensuring a sealed connection to prevent leakage. The first end face 13 faces the atomizer cover 5 to provide a reliable end face seal and prevent e-liquid from leaking out of the connection. Because the atomizer core inside the atomizer 6 will experience reduced atomization efficiency and a worse taste due to e-liquid residue and carbon buildup after prolonged use, regular replacement is necessary to maintain performance and hygiene. Regular disassembly of the atomizer cover 5 is required for maintenance or cleaning, such as replacing the atomizer core inside the atomizer 6. Therefore, the sealing ring must be easy to disassemble and reinstall to ensure that the sealing performance does not deteriorate. In a specific embodiment, the atomizer cover 5 is made of transparent glass, allowing the user to easily observe the remaining e-liquid level and add it in time. Generally, the outer shell of the mouthpiece 4 is made of food-grade plastic to ensure safety, and the outer shell of the atomizer 6 is made of heat-resistant material to withstand high temperatures, such as ceramic or metal alloy. The connection points of the mouthpiece 4, atomizer 6, and atomizing cover 5 are all provided with sealing grooves 8 for accommodating the electronic cigarette sealing ring 3, fixing the sealing ring position to prevent displacement and ensure sealing effect. In a specific embodiment, the atomizing cover 5 and the outer shell of the mouthpiece 4, and the atomizing cover 5 and the outer shell of the atomizer 6 are all connected by threads, providing a firm and detachable connection for easy assembly and maintenance. The threaded connection generates axial pressure by tightening, ensuring uniform compression of the electronic cigarette sealing ring 3, which is more stable and less prone to loosening than a direct insertion connection. In addition, since the electronic cigarette sealing ring 3 itself has a certain degree of elasticity, when end face sealing is used, this elastic force will react at the connection point after compression, which can easily create gaps, affecting the sealing effect and even causing loosening. Specifically, the atomizing cover 5 has external threads at both ends, and the outer shells of the mouthpiece 4 and the atomizer 6 have matching internal threads to ensure a tight thread fit and prevent loosening. In this embodiment, the sealing ring 3 for electronic cigarettes is mainly used to seal both ends of the atomizer 5. The specific structure and working principle of the mouthpiece 4, atomizer 5, atomizer 6, and battery 7 are well known to those skilled in the art and will not be described in detail here.

[0027] In this embodiment, the sealing ring 3 for electronic cigarettes has a dual function of sealing and buffering clamping. On the one hand, it acts as a seal to prevent e-liquid leakage. During the assembly of the electronic cigarette, the sealing ring forms a pre-seal through the preferential contact of the secondary ring 2. The lip on the main ring 1 then takes place, providing the main sealing force. The secondary ring 2 can also fill the gap between the main ring 1 and the sealing surface, forming an additional sealing barrier. Compared with using a circumferential surface seal, such as directly putting an O-ring on the circumferential surface outside the atomizer 5, this end-face sealing method is prone to wear and loosening due to rotation or vibration. Since the circumferential surface seal relies on radial tight fit, gaps are easily generated under frequent disassembly, reducing the reliability of the seal. On the other hand, during the assembly of the electronic cigarette, the sealing ring 3 uses its own elasticity to play a role in buffering and stress distribution. The secondary ring 2 is compressed and deformed during tightening, absorbing and distributing stress, preventing the atomizer 5 from breaking due to excessive thread tightening. Furthermore, compared to having only the main ring 1, when the atomizer 5 is screwed in, the end face of the atomizer 5 directly contacts the lip of the main ring 1 first, and there is friction between the two, causing the main ring 1 to tend to rotate or even rotate slightly. Friction also occurs between the main ring 1 and the outer shell of the mouthpiece 4 / atomizer 6, directly wearing down the lip and affecting the sealing of the connection. With the addition of the secondary ring 2, when the atomizer 5 is screwed in, the atomizer 5 first contacts the secondary ring 2. After the secondary ring 2 undergoes a certain amount of deformation, the atomizer 5 then contacts the lip of the main ring 1. During this process, there is friction between the atomizer 5 and the secondary ring 2, causing the secondary ring 2 to tend to rotate. Even if a slight rotation occurs, the wear will only occur in the receiving grooves 131 of the secondary ring 2 and the main ring 1, and will not directly wear the lip of the main ring 1. Thus, even if wear occurs, it will not affect the overall sealing effect. In addition, even if the rotation trend is transmitted to the main ring 1 through the secondary ring 2, the rotational energy can be absorbed and dispersed due to the elastic buffer and friction damping effect of the secondary ring 2, and this trend is also significantly weakened, thereby further reducing the rotation risk and wear possibility of the main ring 1. That is, the secondary ring 2 can also act as a sacrificial layer to protect the lip of the main ring 1, reduce direct wear, and extend the life of the sealing ring.

[0028] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sealing ring for electronic cigarettes, characterized in that: The ring includes a main ring (1) and a secondary ring (2). A first lip (15) and a second lip (16) protruding outward along the axial direction are provided on a first end face (13) on one side of the main ring (1). The first lip (15) is located close to the inner diameter surface (12). A receiving groove (131) is formed between the first lip (15) and the second lip (16). The secondary ring (2) is embedded in the receiving groove (131) and protrudes outward along the axial direction from the first lip (15) and the second lip (16). At least one lip is provided on the outer diameter surface (11) of the main ring (1).

2. The sealing ring for electronic cigarettes according to claim 1, characterized in that: The first lip (15) has a first surface (151) extending axially on the side near the receiving groove (131), and the second lip (16) has a third surface (161) on the side near the receiving groove (131). The third surface (161) is inclined toward the first lip (15) and toward the first end face (13). The sub-ring (2) is tangent to the bottom surface of the first surface (151), the third surface (161), and the receiving groove (131).

3. The sealing ring for electronic cigarettes according to claim 1, characterized in that: The second lip (16) is provided to protrude axially from the first lip (15); The first lip (15) has a second surface (152) on the side of the inner diameter surface (12) of the main ring (1), and the second surface (152) is inclined toward the inner diameter surface (12) and toward the first end face (13).

4. The sealing ring for electronic cigarettes according to claim 1, characterized in that: The outer diameter surface (11) of the main ring (1) is provided with a third lip (17) and a fourth lip (18) that protrude radially outward. The maximum outer diameter of the third lip (17) is greater than the maximum outer diameter of the fourth lip (18).

5. The sealing ring for electronic cigarettes according to claim 4, characterized in that: The fourth lip (18) is located at the intersection of the outer diameter surface (11) and the second end face (14) of the main ring (1), and the fourth lip (18) protrudes axially from the second end face (14). The second end face (14) is located on the side of the main ring (1) opposite to the first end face (13); The second end face (14) is provided with a fifth lip (19) protruding outward along the axial direction, and the fourth lip (18) protrudes outward from the fifth lip (19) in the axial direction.

6. The sealing ring for electronic cigarettes according to claim 5, characterized in that: The fifth lip (19) has a fourth surface (191) extending axially on the side of the inner diameter surface (12) of the main ring (1); the fifth lip (19) has a fifth surface (192) on the side away from the inner diameter surface (12), and the fifth surface (192) is inclined toward the inner diameter surface (12) and away from the second end face (14).

7. The sealing ring for electronic cigarettes according to claim 1, characterized in that: The material hardness of the sub-ring (2) is less than that of the main ring (1).

8. The sealing ring for electronic cigarettes according to claim 1, characterized in that: The sub-circle (2) is an O-ring; The inner diameter surface (12) of the main ring (1) is a continuous cylindrical surface.

9. An electronic cigarette, characterized in that: The device includes the sealing ring (3) for electronic cigarettes as described in any one of claims 1-8, and also includes a mouthpiece (4), an atomizing cover (5), an atomizer (6), and a battery (7). One end of the atomizing cover (5) is detachably connected to the mouthpiece (4), and the other end is detachably connected to the atomizer (6). The atomizer (6) is electrically connected to the battery (7). The sealing ring (3) for electronic cigarettes is installed between the outer shell of the atomizing cover (5) and the outer shell of the mouthpiece (4), and between the outer shell of the atomizing cover (5) and the outer shell of the atomizer (6). The first end face (13) faces the side of the atomizing cover (5).

10. The electronic cigarette according to claim 9, characterized in that: The mouthpiece (4), atomizer (6) and atomizer cover (5) are all provided with sealing grooves (8) for accommodating the sealing ring (3) for electronic cigarettes. The atomizing cover (5) and the outer shell of the mouthpiece (4), and the atomizing cover (5) and the outer shell of the atomizer (6) are all connected by threads.

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