Open cartridge child lock structure

By using a ring-shaped one-way valve made of elastic silicone material in e-cigarettes, the problem of e-liquid leakage during the filling process of e-cigarettes has been solved, achieving safe and reliable e-liquid filling.

CN224402916UActive Publication Date: 2026-06-26GUANGDONG CELLULAR WORKSHOP ELECTRONIC TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG CELLULAR WORKSHOP ELECTRONIC TECH CO LTD
Filing Date
2025-07-14
Publication Date
2026-06-26

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Abstract

The utility model relates to electronic cigarette technical field, especially point to an open type cartridge child lock structure. The cartridge child lock structure of utility model includes oil storehouse, the top of oil storehouse is provided with oil inlet, still include check valve, check valve cover is located at the top of oil storehouse, and the valve of check valve is blocked on oil inlet, and check valve valve control oil inlet can only open inwards. The utility model avoids that cartridge is opened by children wrongly, can be applied to electronic cigarette cartridge.
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Description

Technical Field

[0001] This utility model relates to the field of electronic cigarette technology, and specifically to an open-type child lock structure for cigarette cartridges. Background Technology

[0002] E-cigarettes typically supply e-liquid to the reservoir and atomizer coil via cartridges. However, due to the small size of e-cigarettes and cartridges, they are easily accessible to children. Therefore, ensuring that e-liquid can be refilled while preventing leakage when children are in contact with it is a key design consideration. Utility Model Content

[0003] The technical problem solved by this utility model is to provide an open-type child lock structure for e-cigarette cartridges, which can facilitate e-liquid filling and automatically close the e-liquid filling port after filling is completed.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is:

[0005] The structure includes an oil tank; an oil inlet is provided on the top of the oil tank; a one-way valve is included; the one-way valve cover is provided on the top of the oil tank, the valve of the one-way valve is sealed on the oil inlet, and the valve of the one-way valve controls the oil inlet to open only inward.

[0006] The one-way valve is a ring-shaped piece made of elastic silicone material; the valve body has a radial cut on the ring.

[0007] The location where the one-way valve forms a cut is locally thin-sheet-like.

[0008] This invention features a one-way valve located at the e-liquid filling port of the e-cigarette reservoir. The one-way valve can only open towards the inside of the reservoir. Once the external force is removed, the one-way valve immediately closes the filling port. Therefore, the one-way valve prevents e-liquid from leaking out of the filling port. Even if children or other individuals accidentally touch the e-cigarette's filling port, there will be no e-liquid leakage. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings:

[0010] Figure 1 This is a cross-sectional view of the electronic cigarette cartridge in disassembly and refilling state according to this utility model;

[0011] Figure 2 This is a cross-sectional view of the electronic cigarette cartridge in the locked state of this utility model;

[0012] Figure 3 This is a perspective view of the one-way valve 2 of this utility model;

[0013] Figure 4 This is a three-dimensional view of the disassembled state of the electronic cigarette cartridge of this utility model. Detailed Implementation

[0014] The following embodiments are descriptions of specific implementations of the present utility model. These descriptions are intended to facilitate understanding of the technical solutions of this application by those skilled in the art and are not intended to limit the scope of protection of the technical solutions of the present utility model. All equivalent transformations that can be obtained from the description of the embodiments of the present utility model should be within the scope of protection of the present utility model.

[0015] like Figures 1 to 4 As shown, the electronic cigarette cartridge of this utility model has a child lock structure with an oil tank 1 and a one-way valve 2; the oil tank 1 has an atomization channel in the center and an oil filling port 11 at the top.

[0016] The one-way valve 2 is a ring-shaped piece made of elastic silicone material; a radial cut is made on the ring to form the valve 21 of the one-way valve. In order to allow the valve 21 to be deformable, the cut is partially thin; and the upper part is flush with the rest, while the lower part is notched.

[0017] One-way valve 2 is installed on top of the oil tank, and its valve is sealed on the oil inlet 11. Valve 21 controls the oil inlet 11 to open only inwards. Figure 1 As shown, when the nozzle 3 is inserted, the cut of the one-way valve 2 deforms inward, allowing the nozzle 3 to open the filling port 11; at this time, e-liquid can be added into the e-liquid tank 1 through the nozzle 3. Figure 2 As shown, when the nozzle 3 is removed, the silicone at the cut position returns to its initial state; the filling port 11 is closed. Therefore, the one-way valve 2 ensures that e-liquid in the oil tank can only be added inwards, and will not flow outwards.

[0018] The implementation of the above technical solution of this utility model is unrelated to the structure of the rest of the electronic cigarette, and is not limited to what is shown in the attached drawings; it will not be described in detail here.

Claims

1. An open-type child lock structure for e-cigarette cartridges, the structure comprising an oil reservoir; an oil filling port is provided at the top of the oil reservoir; characterized in that: It also includes a one-way valve; the one-way valve cover is installed on the top of the oil tank, the valve of the one-way valve is sealed on the oil filling port, and the valve of the one-way valve controls the oil filling port to only open inward.

2. The open-type child lock structure for cigarette cartridges according to claim 1, characterized in that: The one-way valve is a ring-shaped piece made of elastic silicone material; the valve body has a radial cut on the ring.

3. The open-type child lock structure for cigarette cartridges according to claim 2, characterized in that: The location where the one-way valve forms a cut is locally thin-sheet-like.