An oil leakage-proof electronic cigarette cartridge sealing ring

By combining the support components, compression components, and locking components, the leakage problem of the electronic cigarette cartridge sealing ring during deformation is solved, achieving both sealing effect and convenient operation.

CN224330388UActive Publication Date: 2026-06-09DONGGUAN MINGZHEN RUBBER PLASTIC PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN MINGZHEN RUBBER PLASTIC PROD CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing e-cigarette cartridge sealing rings are prone to gaps when deformed, leading to e-liquid leakage, damage to the controller, increased usage costs, and negatively impacting user experience.

Method used

The design employs a combination of support components, compression components, and locking components to ensure a tight fit between the sealing ring and the top cover and the inner shell of the cartridge, preventing e-liquid leakage.

Benefits of technology

It effectively prevents e-liquid leakage, reduces usage costs, improves user experience, and facilitates the installation and removal of e-liquid cartridge components.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of electronic cigarettes and discloses a leak-proof sealing ring for electronic cigarette cartridges. The ring includes a sealing ring body, with a top cover fitted onto the upper end of the sealing ring body and a cartridge inner shell fitted onto the lower end. A sealing mechanism is provided on the outer surface of the cartridge inner shell, and a cartridge outer shell is provided on the outer wall of the cartridge inner shell. The sealing mechanism includes a support component, which includes a fixing ring fixedly connected to the outer wall of the cartridge inner shell. A sliding ring is elastically connected to the upper surface of the fixing ring via a spring a. In this utility model, after the sealing ring body is fitted onto the top cover, when the cartridge inner shell is fitted, the cooperation of the support component and the compression component of the sealing mechanism ensures that the sealing ring body completely seals the top cover and the cartridge inner shell, preventing e-liquid leakage through the gap between the sealing ring and the top cover, thus avoiding problems that affect usage costs and user experience, and improving the practicality of the device.
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Description

Technical Field

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

[0002] Traditional cigarettes have seen a gradual decrease in users due to their well-known harmful effects, with some being replaced by e-cigarettes. E-cigarettes use electronic atomizers to vaporize e-liquid or other chemical substances, producing an aerosol to replace the smoke produced by burning tobacco.

[0003] Electronic cigarettes have a similar taste to traditional cigarettes, and even offer a wider variety of flavors. Like cigarettes, they produce aerosols, providing a taste and sensation, but without the tar, particulate matter, or other harmful components found in cigarettes, and without the pervasive or lingering secondhand smoke. Electronic cigarettes consist of cartridges and a device. E-liquid is generally stored inside the cartridge, so a sealing ring is usually installed on the bottom cover of the cartridge to prevent leakage.

[0004] Because the inner surface of the sealing ring of existing e-cigarette cartridges is a smooth straight line, when the sealing ring is deformed under force, a gap will be generated between the top of the sealing ring and the inner wall of the top cover. E-liquid will leak through the gap between the sealing ring and the inner wall of the top cover, causing leakage. This leakage will flow back to the controller, causing the controller to burn out, thereby increasing the user's usage cost and affecting the user's enjoyment. To solve the above problems, a leak-proof e-cigarette cartridge sealing ring is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a leak-proof sealing ring for electronic cigarette cartridges, aiming to improve the problem in the prior art where e-liquid easily leaks through gaps, causing leakage that can easily burn out the controller, increase usage costs, and affect the user experience.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a leak-proof electronic cigarette cartridge sealing ring, comprising a sealing ring body, a top cover sleeved on the upper end of the sealing ring body, a cartridge inner shell sleeved on the lower end of the sealing ring body, a sealing mechanism provided on the outer surface of the cartridge inner shell, and a cartridge outer shell provided on the outer wall of the cartridge inner shell.

[0007] As a further description of the above technical solution:

[0008] The sealing mechanism includes a support assembly, which includes a fixing ring. The fixing ring is fixedly connected to the outer wall of the inner shell of the cartridge, and a sliding ring is elastically connected to the upper surface of the fixing ring by a spring a.

[0009] As a further description of the above technical solution:

[0010] The sealing mechanism further includes a first compression component and a second compression component. The first compression component includes a support seat a, and the inner wall of the support seat a is elastically connected to a pressure block a via a spring b. The second compression component includes a support seat b, and the inner wall of the support seat b is elastically connected to a pressure block b via a spring c. Both the support seat a and the support seat b are fixedly connected to the outer wall of the sliding ring.

[0011] As a further description of the above technical solution:

[0012] A locking assembly is provided on the inner wall of the lower end of the top cover. The locking assembly includes a protruding rod, and a plug rod is fixedly connected to the left surface of the protruding rod. The left surface of the plug rod is elastically connected to the inner wall of the top cover by a spring d. A slot is provided at the top of the cartridge shell.

[0013] As a further description of the above technical solution:

[0014] A protrusion is provided at the center of the inner wall of the top cover, and the upper end of the sealing ring body is sleeved on the outer wall of the protrusion. The sliding ring is slidably connected to the outer wall of the inner shell of the cartridge.

[0015] As a further description of the above technical solution:

[0016] The first compression assembly is provided in two sets, and the two sets of the first compression assembly are arranged symmetrically back and forth with the center line of the inner shell of the cartridge as the axis. The second compression assembly is provided in two sets, and the two sets of the second compression assembly are arranged symmetrically left and right with the center line of the inner shell of the cartridge as the axis.

[0017] As a further description of the above technical solution:

[0018] The curvature of the adjacent surfaces of the two sets of pressing blocks a matches the curvature of the left and right outer walls of the inner shell of the cartridge, and the curvature of the adjacent surfaces of the two sets of pressing blocks b matches the curvature of the front and rear outer walls of the inner shell of the cartridge.

[0019] As a further description of the above technical solution:

[0020] The locking assembly is provided in two sets, and the two sets of locking assemblies are arranged symmetrically about the center line of the cartridge shell. The protruding rod passes through and is slidably connected to the right surface of the top cover.

[0021] As a further description of the above technical solution:

[0022] The insertion rod is L-shaped, and the right half of the lower surface of the insertion rod is set as an inclined surface that gradually slopes upward from left to right. The insertion rod is inserted into the inner wall of the slot.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, after the sealing ring body is fitted with the top cover, when fitting the inner shell of the tobacco cartridge, the sealing ring body completely seals the top cover and the inner shell of the tobacco cartridge through the cooperation of the support component and the compression component of the sealing mechanism. This prevents the e-liquid from leaking through the gap between the sealing ring and the top cover, thus avoiding problems that affect the cost of use and the user experience. This improves the practicality of the device.

[0025] 2. In this utility model, the top cover and the cartridge shell can be installed and disassembled by pressing the protruding rods of the locking assembly at both ends of the top cover. When it is necessary to disassemble or replace parts of the cartridge, the disassembly and assembly are convenient, reducing time and improving work efficiency. Attached Figure Description

[0026] Figure 1 This is a three-dimensional disassembled front view of the overall device in this utility model;

[0027] Figure 2 This is a three-dimensional cross-sectional diagram of the sealing ring body, top cover, and cartridge shell in this utility model.

[0028] Figure 3 In this utility model Figure 2 A magnified view of part A in the middle;

[0029] Figure 4 This is a three-dimensional structural disassembly diagram of the sealing mechanism in this utility model.

[0030] Legend:

[0031] 1. Sealing ring body; 2. Top cover; 3. Cartridge outer shell; 4. Cartridge inner shell; 51. Fixing ring; 52. Sliding ring; 53. Spring a; 61. Support seat a; 62. Spring b; 63. Pressure block a; 71. Support seat b; 72. Spring c; 73. Pressure block b; 81. Protruding rod; 82. Insert rod; 83. Spring d; 84. Slot. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1 , Figure 2 , Figure 4One embodiment of this utility model is a leak-proof sealing ring for an electronic cigarette cartridge, comprising a sealing ring body 1, a top cover 2 fitted onto the upper end of the sealing ring body 1, the inner wall of the upper end of the sealing ring body 1 being stepped, a protrusion being provided at the center of the inner wall of the top cover 2, the upper end of the sealing ring body 1 being fitted onto the outer wall of the protrusion, a cartridge inner shell 4 being fitted onto the lower end of the sealing ring body 1, the cartridge inner shell 4 storing e-liquid inside, a sealing mechanism being provided on the outer surface of the cartridge inner shell 4, and a cartridge outer shell 3 being provided on the outer wall of the cartridge inner shell 4, the upper end of the cartridge outer shell 3 being engaged with the lower end of the top cover 2.

[0034] Reference Figure 1 , Figure 2 , Figure 4 The sealing mechanism includes a support assembly, which includes a fixing ring 51. The fixing ring 51 is fixedly connected to the outer wall of the inner shell 4 of the cartridge. A sliding ring 52 is elastically connected to the upper surface of the fixing ring 51 through a spring a53. The fixing ring 51 supports the spring a53. The sliding ring 52 is slidably connected to the outer wall of the inner shell 4 of the cartridge. When the sliding ring 52 slides downward, it will compress the spring a53 and generate a reaction force.

[0035] Reference Figure 1 , Figure 2 , Figure 4 The sealing mechanism also includes a first compression assembly and a second compression assembly. Two sets of the first compression assembly are arranged symmetrically about the center line of the inner shell 4 of the tobacco cartridge. Each first compression assembly includes a support base a61. A pressure block a63 is elastically connected to the inner wall of the support base a61 via a spring b62. The center of the support base a61 is grooved, perfectly matching the height of the pressure block a63. The pressure block a63 can slide in the groove due to the kinetic energy conversion of the spring b62. The curvature of the adjacent surfaces of the two pressure blocks a63 matches the curvature of the left and right outer walls of the inner shell 4 of the tobacco cartridge. The upper surface of the pressure block a63 is a gradually sloping surface from top to bottom, serving as a guide to facilitate the fitting of the sealing ring body 1 with the inner shell 4 of the tobacco cartridge. Two sets of the second compression assembly are also provided. The components are arranged symmetrically about the center line of the inner shell 4 of the cartridge. The second compression component includes a support base b71. The inner wall of the support base b71 is elastically connected to a pressure block b73 by a spring c72. The middle part of the support base b71 is also grooved and fits the height of the pressure block b73. The pressure block b73 can slide in the groove when the kinetic energy of the spring c72 is converted. The curvature of the adjacent surfaces of the two sets of pressure blocks b73 matches the curvature of the front and rear outer walls of the inner shell 4 of the cartridge. The upper surface of the pressure block b73 is set as a slope that gradually slopes from top to bottom, which serves as a guide and facilitates the connection between the sealing ring body 1 and the inner shell 4 of the cartridge. The support base a61 and the support base b71 are both fixedly connected to the outer wall of the sliding ring 52. The sliding ring 52 drives the support base a61 and the support base b71 to slide while sliding.

[0036] Reference Figures 1-3The lower inner wall of the top cover 2 is provided with a locking assembly. Two sets of locking assemblies are arranged symmetrically about the center line of the cartridge shell 3, facilitating easy gripping during operation. Each locking assembly includes a protruding rod 81, which passes through and slides onto the right surface of the top cover 2. Another set of protruding rods 81 passes through and slides onto the left surface of the top cover 2. A plug rod 82 is fixedly connected to the left surface of the protruding rod 81. Sliding the protruding rod 81 can move the plug rod 82. The left surface of the plug rod 82 is elastically connected to the inner wall of the top cover 2 via a spring d83, releasing the protruding rod 81. As the rod 81 is pressed, the insertion rod 82 can quickly move and reset under the release of the spring d83 force. The insertion rod 82 is L-shaped, and the right half of the lower surface of the insertion rod 82 is set as an inclined surface that gradually slopes upward from left to right. The top of the cartridge shell 3 is provided with a slot 84. The inner wall width of the slot 84 is greater than that of the insertion rod 82, providing enough space for the insertion rod 82 to slide left and right. The insertion rod 82 is inserted into the inner wall of the slot 84. The bottom of the slot 84 is provided with an inclined surface that fits with the insertion rod 82, so that the lower end of the insertion rod 82 can fit against the inner wall of the slot 84, so that the top cover 2 and the cartridge shell 3 are snapped together.

[0037] Working principle: First, insert the sealing ring body 1 into the top cover 2, then align the top cover 2 and the cartridge shell 3. During the alignment process, the inclined surface of the insert rod 82 will be squeezed, and the insert rod 82 will move towards the center of the top cover 2 to release the obstruction and squeeze the spring d83 to generate a reaction force. Gradually, the insert rod 82 will be inserted into the slot 84. After the insertion is completed, the insert rod 82 will no longer be squeezed, and the spring d83 will push the insert rod 82 to engage with the slot 84 to limit the position. When it is necessary to release the limit, simply pinch the protruding rod 81 to move the insert rod 82 to release the limit, and then separate the top cover 2 and the cartridge shell 3.

[0038] Furthermore, when the top cover 2 and the cartridge shell 3 are joined, the sealing ring body 1 will press the inclined surfaces of the pressure blocks a63 and b73, causing them to open synchronously and release the obstruction. It will also press the springs b62 and c72 to generate a reaction force. During the joining process, the sealing ring body 1 will also press the sliding ring 52 downwards. The sliding ring 52 will press the spring a53 to generate a reaction force. Under the push of the spring a53, the upper surface of the sealing ring body 1 will be tightly attached to the inner wall of the top of the top cover 2. Under the push of the springs b62 and c72, the pressure blocks a63 and b73 will press the outer wall of the sealing ring body 1 tightly, so that it is tightly attached to the outer wall of the top of the cartridge inner shell 4, maintaining a seal and preventing leakage.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A leak-proof sealing ring for electronic cigarette cartridges, comprising a sealing ring body (1), characterized in that: The upper end of the sealing ring body (1) is fitted with a top cover (2), the lower end of the sealing ring body (1) is fitted with a cartridge inner shell (4), the outer surface of the cartridge inner shell (4) is provided with a sealing mechanism, and the outer wall of the cartridge inner shell (4) is provided with a cartridge outer shell (3). The sealing mechanism includes a support assembly, which includes a fixing ring (51). The fixing ring (51) is fixedly connected to the outer wall of the inner shell (4) of the cartridge. The upper surface of the fixing ring (51) is elastically connected to a sliding ring (52) by a spring a (53).

2. The leak-proof sealing ring for electronic cigarette cartridges according to claim 1, characterized in that: The sealing mechanism further includes a first compression component and a second compression component. The first compression component includes a support seat a (61), and the inner wall of the support seat a (61) is elastically connected to a pressure block a (63) by a spring b (62). The second compression component includes a support seat b (71), and the inner wall of the support seat b (71) is elastically connected to a pressure block b (73) by a spring c (72). Both the support seat a (61) and the support seat b (71) are fixedly connected to the outer wall of the sliding ring (52).

3. The leak-proof sealing ring for electronic cigarette cartridges according to claim 1, characterized in that: The lower inner wall of the top cover (2) is provided with a locking assembly, which includes a protruding rod (81). A plug rod (82) is fixedly connected to the left surface of the protruding rod (81). The left surface of the plug rod (82) is elastically connected to the inner wall of the top cover (2) through a spring d (83). A slot (84) is provided at the top of the cartridge shell (3).

4. The leak-proof sealing ring for electronic cigarette cartridges according to claim 1, characterized in that: The top cover (2) has a protrusion at the center of its inner wall. The upper end of the sealing ring body (1) is fitted onto the outer wall of the protrusion. The sliding ring (52) is slidably connected to the outer wall of the inner shell (4) of the cartridge.

5. The leak-proof sealing ring for electronic cigarette cartridges according to claim 2, characterized in that: The first compression assembly is provided in two sets, and the two sets of the first compression assembly are arranged symmetrically back and forth with the center line of the inner shell (4) of the cartridge as the axis. The second compression assembly is provided in two sets, and the two sets of the second compression assembly are arranged symmetrically left and right with the center line of the inner shell (4) of the cartridge as the axis.

6. The leak-proof sealing ring for electronic cigarette cartridges according to claim 2, characterized in that: The curvature of the adjacent surfaces of the two sets of pressing blocks a (63) matches the curvature of the left and right outer walls of the inner shell (4) of the cartridge, and the curvature of the adjacent surfaces of the two sets of pressing blocks b (73) matches the curvature of the front and rear outer walls of the inner shell (4) of the cartridge.

7. The leak-proof sealing ring for electronic cigarette cartridges according to claim 3, characterized in that: The locking assembly is provided in two sets, and the two sets of locking assemblies are arranged symmetrically on the left and right with the center line of the cartridge shell (3) as the axis. The protruding rod (81) passes through and is slidably connected to the right surface of the top cover (2).

8. The leak-proof sealing ring for an electronic cigarette cartridge according to claim 3, characterized in that: The insertion rod (82) is L-shaped, and the right half of the lower surface of the insertion rod (82) is set as an inclined surface that gradually slopes upward from left to right. The insertion rod (82) is inserted into the inner wall of the slot (84).