Wine bottle cap

By using a combination of a metal retaining ring and a plastic inner cap in the bottle cap, and utilizing a snap-fit ​​structure to enhance the connection strength, the problem of easy disassembly of the bottle cap is solved, and the anti-disassembly effect of the bottle cap is achieved.

CN224146663UActive Publication Date: 2026-04-21ZHEJIANG YONGSHENG PACKAGING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YONGSHENG PACKAGING
Filing Date
2025-05-16
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The caps of existing wine bottles can be easily removed and reinstalled by heating and deforming them, resulting in the internal contents being replaced without leaving any obvious traces.

Method used

The design incorporates a metal retaining ring and a plastic inner cover. The retaining ring is fixed to the cover body by overmolding, and the clamping plate is tilted to enhance the connection strength. The snap-fit ​​structure also prevents the outer cover from being disassembled.

Benefits of technology

It effectively prevents the outer cap of the bottle from deforming when heated, enhances the structural strength of the connection, makes the outer cap difficult to disassemble again, and ensures the integrity of the bottle cap.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a wine bottle cap which comprises an outer cap and an inner cap, the outer cap comprises a cap body and a fixing ring, the fixing ring is fixedly installed on the cap body, the fixing ring is partially located in the cap body, the inner cap is at least partially located in the cap body, the fixing ring comprises at least one clamping plate, the clamping plate inclines towards the direction of the inner cap, and an annular groove is formed in the outer side wall of the inner cap. The outer cover can be prevented from expanding due to heating through the metal fixing ring, the outer cover and the inner cover are connected in a clamped mode through the clamping plate of the fixing ring, the inner cover can not be installed again when the outer cover is pulled out forcibly, and the outer cover can be detached.
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Description

Technical Field

[0001] This utility model relates to the field of bottle cap technology, and more specifically, to a wine bottle cap. Background Technology

[0002] In the existing technology, some people on the market use tools to remove the top cap of liquor bottles without damaging the structure. Since the top cap is made of plastic, the clips connecting the top and bottom caps are easily deformed by heat. In this case, the chip inside the cap can be replaced or even the liquor inside can be replaced. After that, the cap can be reinstalled without any obvious marks on the outside. Therefore, a technical solution is needed to solve the above problems. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and prevent the outer cap of the bottle cap from being disassembled, thereby providing a wine bottle cap.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a bottle cap, including an outer cap and an inner cap. The outer cap includes a cap body and a fixing ring. The fixing ring is fixedly installed on the cap body, and a portion of the fixing ring is located inside the cap body. At least a portion of the inner cap is located inside the cap body. The fixing ring includes at least one retaining plate, which is inclined toward the inner cap. The outer side wall of the inner cap is provided with an annular groove, and at least a portion of the retaining plate is located in the annular groove. The fixing ring is made of metal, and the inner cap is made of plastic.

[0006] Furthermore, the retaining ring is fixed to the cover body by overmolding.

[0007] Furthermore, the card plate extends at least partially out of the inner wall of the cover, and the portion of the card plate extending out of the cover is located within the annular groove.

[0008] Furthermore, the card plate is located at the upper end of the fixing ring, and the upper end of the card plate is inclined towards the inner cover. Multiple card plates are provided, and the multiple card plates are distributed in a ring-shaped interval.

[0009] Furthermore, the angle between the card plate and the horizontal plane is α, where α is 30°.

[0010] Furthermore, the thickness of the fixing ring is L, and the thickness of the cover portion located on both sides of the fixing ring is D, where D is greater than or equal to 2L.

[0011] Furthermore, the inner wall of the cover is provided with a plurality of first protrusions, which are spaced apart and form a first groove between two adjacent first protrusions. The inner cover is provided with a plurality of second protrusions, which are spaced apart in a ring and form a second groove between two adjacent second protrusions. The first protrusions are engaged in the second grooves and the second protrusions are engaged in the first grooves.

[0012] Furthermore, the inner wall of the cover is provided with multiple strip grooves, which are located inside the fixing ring.

[0013] The beneficial effects of this utility model are:

[0014] This invention uses a rubber-coated injection-molded retaining ring inside the outer cover. The metal retaining ring prevents the outer cover from expanding due to heat and increases the structural strength of the snap-fit ​​part. The outer cover and the inner cover are engaged by a retaining plate of the retaining ring. Forcibly pulling out the outer cover will damage the inner cover and make it impossible to reinstall. This invention enables the disassembly of the textile mesh outer cover. Attached Figure Description

[0015] Figure 1 This is an exploded view of this embodiment.

[0016] Figure 2 This is a cross-sectional view of this embodiment.

[0017] Figure 3 for Figure 3 Enlarged view of point A in the middle.

[0018] Figure 4 This is a schematic diagram of the cover in this embodiment.

[0019] Reference numerals: 1. Outer cover; 11. Cover body; 111. Strip groove; 112. First protruding tooth; 113. First groove; 12. Fixing ring; 121. Clamping plate; 2. Inner cover; 21. Ring groove; 211. Stop surface; 22. Second protruding tooth; 221. Second groove. Detailed Implementation

[0020] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, this embodiment discloses a bottle cap. To solve the problem that the top cap of existing bottle caps can be disassembled and reassembled, the bottle cap of this embodiment includes an outer cap 1 and an inner cap 2. The outer cap 1 includes a cap body 11 and a fixing ring 12. The fixing ring 12 is fixedly installed on the cap body 11, and part of the fixing ring 12 is located inside the cap body 11. The fixing ring 12 is fixed inside the cap body 11 by overmolding, so that the fixing ring 12 is fixed together with the cap body 11 during injection molding. The fixing ring 12 can be covered by the cap body 11, making the structure more robust and less prone to deformation. The fixing ring 12 is made of metal, and the inner cap 2 is made of plastic, which can prevent the cap body 11 from softening and deforming due to heat, and enhance the structural strength of the connection between the outer cap 1 and the inner cap 2. The inner wall of the cap body 11 is provided with multiple strip grooves 111. The strip grooves 111 are located inside the fixing ring 12. The strip grooves 111 are formed by the support strips on the mold that support the fixing ring 12.

[0022] More preferably, the thickness of the fixing ring 12 is L, and the thickness of the cover body 11 portion located on both sides of the fixing ring 12 is D, where D is greater than or equal to 2L, L is 0.35mm, and D is 0.7mm. The fixing ring 12 is located in the middle of the thickness of the cover body 11, and has strong structural stability after the cover body 11 is encapsulated and injection molded.

[0023] The inner cover 2 is at least partially located inside the cover body 11, and the cover body 11 covers the inner cover 2. The fixing ring 12 includes multiple locking plates 121, which are distributed in a ring at intervals. The locking plates 121 are located at the upper end of the fixing ring 12, and the upper end of the locking plates 121 is inclined towards the inner cover 2. The outer side wall of the inner cover 2 is provided with an annular groove 21, and the locking plates 121 are at least partially located in the annular groove 21. The locking plates 121 and the annular groove 21 form a locking structure, which limits the axial movement direction between the outer cover 1 and the inner cover 2. When the outer cover 1 is installed, since the locking plates 121 are inclined inward at the upper end, when the outer cover 1 is installed on the inner cover 2 from top to bottom, the locking plates 121 can deform to lock into the annular groove 21.

[0024] The fixing ring 12 and part of the retaining plate 121 are covered by the cover body 11. The retaining plate 121 extends at least partially out of the inner wall of the cover body 11. The part of the retaining plate 121 extending out of the cover body 11 is located in the annular groove 21. The upper end surface of the annular groove 21 is a stop surface 211. The stop surface 211 is horizontally set. When the retaining plate 121 is inserted into the annular groove 21, the upper part of the retaining plate 121 is blocked by the stop surface 211 of the annular groove 21. The stop surface 211 limits the retaining plate 121. If the outer cover 1 is pulled upward by force, the retaining plate 121 will destroy the stop surface 211, causing the annular groove 21 to be damaged, and the outer cover 1 can no longer be put back on.

[0025] More preferably, the angle between the locking plate 121 and the horizontal plane is α, where α is 30°. The 30° tilt angle of the locking plate 121 allows the locking plate 121 to better abut against the stop surface 211 when the outer cover 1 is pulled outward, preventing the locking plate 121 from coming out of the annular groove 21. The 30° tilt angle is optimal, making it difficult for the outer cover 1 to be pulled out.

[0026] The inner wall of the cover 11 is provided with a plurality of first protrusions 112, which are spaced apart. A first groove 113 is formed between two adjacent first protrusions 112. The inner cover 2 is provided with a plurality of second protrusions 22, which are spaced apart in a ring. A second groove 221 is formed between two adjacent second protrusions 22. The first protrusions 112 are engaged in the second groove 221, and the second protrusions 22 are engaged in the first groove 113, forming a limit for circumferential rotation between the outer cover 1 and the inner cover 2, which can fix the outer cover 1 and the inner cover 2 together.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A wine bottle closure characterised in that, The device includes an outer cover (1) and an inner cover (2). The outer cover (1) includes a cover body (11) and a fixing ring (12). The fixing ring (12) is fixedly installed on the cover body (11). The fixing ring (12) is partially located inside the cover body (11). The inner cover (2) is at least partially located inside the cover body (11). The fixing ring (12) includes at least one retaining plate (121). The retaining plate (121) is inclined toward the inner cover (2). The outer side wall of the inner cover (2) is provided with an annular groove (21). The retaining plate (121) is at least partially located in the annular groove (21). The fixing ring (12) is made of metal, and the inner cover (2) is made of plastic.

2. The wine bottle cap of claim 1, wherein, The fixing ring (12) is fixed inside the cover (11) by overmolding.

3. The wine bottle cap of claim 1, wherein, The card plate (121) extends at least partially out of the inner wall of the cover (11), and the portion of the card plate (121) extending out of the cover (11) is located within the annular groove (21).

4. The wine bottle cap of claim 1, wherein, The card plate (121) is located at the upper end of the fixing ring (12). The upper end of the card plate (121) is inclined toward the direction close to the inner cover (2). There are multiple card plates (121), and the multiple card plates (121) are distributed in a ring-shaped interval.

5. The wine bottle cap of claim 1, wherein, The angle between the card plate (121) and the horizontal plane is α, where α is 30°.

6. The wine bottle cap of claim 1, wherein, The thickness of the fixing ring (12) is L, and the thickness of the cover (11) portion located on both sides of the fixing ring (12) is D, where D is greater than or equal to 2L.

7. The wine bottle cap of claim 1, wherein, The inner wall of the cover (11) is provided with a plurality of first protrusions (112), which are spaced apart. A first groove (113) is formed between two adjacent first protrusions (112). The inner cover (2) is provided with a plurality of second protrusions (22), which are spaced apart in a ring. A second groove (221) is formed between two adjacent second protrusions (22). The first protrusions (112) are engaged in the second groove (221), and the second protrusions (22) are engaged in the first groove (113).

8. The wine bottle cap of claim 1, wherein, The inner wall of the cover (11) is provided with a plurality of strip grooves (111), which are located inside the fixing ring (12).