Storage bottle cap capable of being compatible with various bottle types

By designing a multifunctional storage bottle cap that adapts to various bottle mouth sizes, the problem of non-universal bottle caps in existing technologies has been solved, enabling wider application and lower production costs, and promoting green production.

CN224117876UActive Publication Date: 2026-04-14ZHONGSHAN HUIWEI PLASTIC METAL IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN HUIWEI PLASTIC METAL IND
Filing Date
2025-04-18
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing storage bottle caps are designed for a specific size, making them unsuitable for bottles of various diameters. This limits their application, increases production and inventory costs, and hinders widespread adoption.

Method used

Design an installation sleeve with multiple threaded sections to accommodate common bottle neck sizes such as 24mm, 28mm, and 29mm. Through the cooperation of the movable part and the bottle cap seat, the storage compartment can be opened and the material can be released. The multi-functional design can adapt to different bottle types.

Benefits of technology

It improves the versatility and adaptability of storage bottle caps, reduces inventory management complexity and production costs, reduces waste caused by mismatch, and promotes green production and sustainable development.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a storage bottle cap compatible with various bottle types, which comprises a bottle cap seat and a movable piece connected onto the bottle cap seat, a storage bin used for storing materials is enclosed between the bottle cap seat and the movable piece, and a bin opening structure capable of opening the storage bin is arranged between the bottle cap seat and the movable piece. The bottle cap seat comprises an installation sleeve used for being connected to a bottle opening of a bottle body, and the inner side wall of the installation sleeve is at least provided with a first threaded section, a second threaded section and a third threaded section which are used for being matched with bottle openings of different specifications in a threaded mode. The storage bottle cap can be compatible with various bottle types, and is high in universality, high in adaptability and more convenient to use.
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Description

Technical Field

[0001] This utility model specifically relates to a storage bottle cap that is compatible with multiple bottle types. Background Technology

[0002] Most beverage bottles on the market have caps, allowing consumers to simply unscrew the cap and drink. However, some beverages require additives or other condiments, leading to the development of self-sealing caps. These caps typically have pre-placed additives or other materials inside the cap's cavity. Consumers can then mix the additives with the solution to create their own beverage after opening the cap. These pre-sealed caps are already commercially available as standalone products. Consumers can simply attach the cap to the mouth of a mineral water bottle or other beverage bottle to obtain their mixed drinks, making it more convenient and versatile. This type of cap structure can be referenced in the patent application previously filed by the present invention, number CN202322835761.6, entitled "A Separable Bottle Cap Convenient Unsealing Structure".

[0003] However, existing storage bottle caps are usually designed to a specific size and cannot be used universally on bottles of various diameters. Common mineral water bottles or beverage bottles are based on international standards or industry-standard designs and usually have standard bottle mouth diameters of 24mm, 28mm, and 29mm. After purchasing the aforementioned self-sealing storage bottle cap, it is necessary to purchase a standard beverage bottle with a matching diameter separately. This limits their application range, increases production and inventory costs, and causes great obstacles to use and waste of resources. Therefore, this type of product has extremely poor adaptability and is not conducive to promotion.

[0004] This utility model was developed precisely because of the aforementioned shortcomings. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a storage bottle cap that is compatible with multiple bottle types, highly versatile, highly adaptable, and more convenient to use.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model provides a storage bottle cap that is compatible with multiple bottle types, including a bottle cap seat and a movable part connected to the bottle cap seat, which together form a storage bin for storing materials. The bottle cap seat and the movable part are provided with a bin opening structure that can open the storage bin. The bottle cap seat includes a mounting sleeve for connecting to the bottle mouth of the bottle body. The inner side wall of the mounting sleeve is provided with at least a first threaded section, a second threaded section and a third threaded section for threaded engagement with bottle mouths of different specifications.

[0008] As described above, in the storage bottle cap that is compatible with multiple bottle types, at least two of the three threaded segments—the first threaded segment, the second threaded segment, and the third threaded segment—are connected end to end.

[0009] As described above, the storage bottle cap is compatible with various bottle types. The mounting sleeve has a first mounting ring, a second mounting ring, and a third mounting ring arranged sequentially from top to bottom with gradually increasing diameters. The first threaded section is located on the inner wall of the first mounting ring, the second threaded section is located on the inner wall of the second mounting ring, and the third threaded section is located on the inner wall of the third mounting ring.

[0010] As described above, the storage bottle cap is compatible with various bottle types, wherein the second threaded section and the third threaded section are connected end to end, and the pitch of the third threaded section is greater than the pitch of the second threaded section.

[0011] As described above, the storage bottle cap is compatible with various bottle types, and the mounting sleeve also has a flared section located below the third mounting ring with a diameter larger than that of the third mounting ring.

[0012] As described above, the storage cap is compatible with multiple bottle types. The cap seat also includes an outer sleeve connected to the mounting sleeve. When the cap seat is connected to the bottle body, the outer sleeve is located at the corresponding position inside the bottle mouth. The movable part includes an inner sleeve with an open bottom that can move up and down relative to the outer sleeve. The bottom of the outer sleeve is provided with a sealing part that seals the bottom of the inner sleeve when the inner sleeve moves downward. When the inner sleeve moves downward, it and the sealing part form the storage bin. The bottom of the outer sleeve is provided with a discharge port so that the material in the storage bin can leak out from the discharge port when the inner sleeve moves upward. An outer assembly cylinder is connected above the outer sleeve, and an inner assembly cylinder is connected above the inner sleeve. The bin opening structure includes a strip groove that is inclined or partially inclined on the side wall of the inner assembly cylinder. The bin opening structure also includes a limiting boss that is provided on the inner side wall of the outer assembly cylinder and extends into the strip groove.

[0013] As described above, the storage cap is compatible with various bottle types. The inner assembly cylinder sidewall is also provided with a guide groove for the limiting boss to slide into the strip groove. The lower end of the guide groove is open, so that the inner assembly cylinder can be inserted into the outer assembly cylinder from top to bottom. The guide groove is provided with an inclined first guide slope on the side near the strip groove. The top of the limiting boss is provided with a second guide slope that matches the inclination of the strip groove.

[0014] As described above, the storage bottle cap that is compatible with various bottle types has a movable component consisting of a cylindrical body that runs vertically through the body and a top cap that seals the top of the cylindrical body.

[0015] As described above, the storage cap is compatible with various bottle types. The cap seat is provided with a storage trough with an open top. The bottom of the storage trough is composed of a thin-walled base plate. The movable part is sealed on the top of the storage trough and forms the storage bin with the inner wall of the storage trough. The bin opening structure includes a deformable pressing part located in the middle of the movable part for manual pressing. The pressing part is connected to a pressing column that can press and pierce the thin-walled base plate when pressed down.

[0016] As described above, the storage cap is compatible with various bottle types. The thin-walled bottom plate is provided with at least one groove. When the top pressure column presses against the thin-walled bottom plate, the groove on the thin-walled bottom plate is torn.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. This utility model provides a self-sealing storage bottle cap that can adapt to various standard bottle neck sizes. By designing different internal thread sections, this cap supports most common 24mm, 28mm, and 29mm standard bottle necks on the market, greatly improving the product's versatility and adaptability. This multi-functional design not only facilitates user operation but also reduces waste caused by mismatched bottle necks, thus benefiting environmental protection.

[0019] 2. When consumers purchase the bottle caps, the storage compartment already contains the materials for blending. Consumers only need to purchase regular mineral water or other beverages to install the bottle caps on the beverage bottles. Through the design concept of one bottle cap product meeting multiple needs, not only is the complexity and cost of inventory management reduced, but manufacturing costs are further reduced by reducing the variety of products produced, thus improving economic efficiency. More importantly, it reduces the number of discarded bottle caps due to mismatched bottle neck specifications, which helps promote green production and sustainable development. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the usage state of the storage bottle cap according to Embodiment 1 of this utility model;

[0021] Figure 2 This is a full sectional view of the storage bottle cap according to Embodiment 1 of this utility model;

[0022] Figure 3 This is an exploded view of the storage bottle cap according to Embodiment 1 of this utility model. Figure 1 ;

[0023] Figure 4 This is an exploded view of the storage bottle cap according to Embodiment 1 of this utility model. Figure 2 ;

[0024] Figure 5This is a partial cross-sectional schematic diagram of the bottle cap holder according to Embodiment 1 of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the storage bottle cap according to Embodiment 2 of this utility model;

[0026] Figure 7 This is a partial cross-sectional schematic diagram of the storage bottle cap according to Embodiment 2 of this utility model;

[0027] Figure 8 This is a full sectional view of the storage bottle cap according to Embodiment 2 of this utility model. Detailed Implementation

[0028] The utility model will be further described below with reference to the accompanying drawings:

[0029] The orientations described in this utility model specification, such as "up," "down," "left," "right," "front," and "back," are based on the orientations in the accompanying drawings and are intended to facilitate the description of the relationships between the various components. They do not indicate the unique or absolute positional relationships between the various components, but are merely one embodiment of the utility model and are not a limitation on its implementation.

[0030] Example 1

[0031] This embodiment introduces a storage bottle cap compatible with various bottle types. The storage bottle cap includes a cap base 1 and a movable part 2. The movable part 2 consists of a cylindrical body 2a extending vertically and a top cap 2b sealing the top of the cylindrical body 2a. The movable part 2 is also a one-piece molded structure, as the lower opening of the cylindrical body 2a can also be used for filling materials. For example... Figure 1 As shown, in this embodiment, this type of storage bottle cap is mainly used on standard bottle necks with a diameter of 24mm (A1), 28mm (A2), and 29mm (A3). Of course, the size can be adjusted appropriately to accommodate a smaller number of 38mm diameter bottle necks. In detail, as... Figures 2 to 4As shown, the device includes a bottle cap holder 1 and a movable member 2. The bottle cap holder 1 and the movable member 2 form a storage cavity 100 for storing materials. The bottle cap holder 1 and the movable member 2 are movably connected, and a hopper opening structure 3 is provided between them to open the storage cavity 100 when the movable member 2 rotates. The bottle cap holder 1 includes an installation sleeve 11 for connecting to the bottle mouth A of the bottle body. The inner side wall of the installation sleeve 11 is provided with a first threaded section 111, a second threaded section 112 and a third threaded section 113, which correspond to a standard bottle mouth A1 with a diameter of 24mm, a standard bottle mouth A2 with a diameter of 28mm and a standard bottle mouth A3 with a diameter of 29mm, respectively. In this embodiment, the mounting sleeve 11 has a first mounting ring 114, a second mounting ring 115, and a third mounting ring 116 arranged sequentially from top to bottom with gradually increasing diameters. A first threaded section 111 is disposed on the inner wall of the first mounting ring 114, a second threaded section 112 is disposed on the inner wall of the second mounting ring 115, and a third threaded section 113 is disposed on the inner wall of the third mounting ring 116. The second threaded section 112 is located below the first threaded section 111, thus enabling the storage bottle cap to be mounted on two different sizes of mineral water or beverage bottles. This makes the storage bottle cap more adaptable, easily adapting to most common bottle mouth sizes on the market, reducing the user's need for different cap sizes; a single product meets multiple needs, reducing inventory costs and complexity; by reducing production types, manufacturing costs are reduced, improving economic efficiency; and the number of discarded bottle caps due to incompatibility is reduced, contributing to environmental protection.

[0032] As a preferred option, such as Figure 5 As shown, the second threaded section 112 and the third threaded section 113 are connected end-to-end, and the pitch of the third threaded section 113 is greater than the pitch of the second threaded section 112. This allows the 28mm diameter standard bottle neck A2 to be screwed onto the 28mm diameter second threaded section 112 via the 29mm diameter third threaded section 113, while the 29mm diameter standard bottle neck A3 can only be screwed onto the third threaded section 113. The 29mm diameter third threaded section 113 does not obstruct the screwing into of the 28mm diameter standard bottle neck A2. The structure is compact and ingenious. Of course, other adjacent threaded sections can also use this structure; for example, the first threaded section 111 and the second threaded section 112 can also be connected end-to-end.

[0033] As a specific implementation of the hopper opening structure 3, such as Figures 2 to 4As shown, the bottle cap holder 1 also includes an outer sleeve 12 connected to the mounting sleeve 11. When the bottle cap holder 1 is connected to the bottle body, the outer sleeve 12 is located at the position corresponding to the inner side of the bottle mouth A. The movable part 2 includes an inner sleeve 21 with an open bottom that can move up and down relative to the outer sleeve 12. The bottom of the outer sleeve 12 is provided with a sealing part 121 that seals the bottom of the inner sleeve 21 when the inner sleeve 21 moves downward. When the inner sleeve 21 moves downward, the inner sleeve 21 and the sealing part 121 form the storage cavity 100. The outer sleeve 12 has a discharge port 122 at its bottom, allowing material in the storage chamber 100 to leak out when the inner sleeve 21 moves upward. An outer assembly cylinder 13 is connected to the top of the outer sleeve 12, and an inner assembly cylinder 22 is connected to the top of the inner sleeve 21. The hopper opening structure 3 includes a strip groove 221 on the side wall of the inner assembly cylinder 22, which is inclined or partially inclined. The hopper opening structure 3 also includes a limiting boss 131 on the inner side wall of the outer assembly cylinder 13 that extends into the strip groove 221. When the product is used, the movable part 2 is turned, causing it to rise relative to the bottle cap seat 1, thereby unsealing the lower end of the inner sleeve 21. Material leaks out from the discharge port 122 at the bottom of the outer sleeve 12 and enters the bottle, mixing with the beverage inside. This achieves the function of dispensing, extends the storage time, and provides users with more diverse drinking options. In this embodiment, the movable part 2 is composed of a cylindrical body 2a that runs vertically through the body and a top cover 2b that seals the top of the cylindrical body 2a. In the actual production and assembly process, the movable part 2 is also an integrally formed structure. Since the lower opening of the cylindrical body 2a can also be filled with materials, the movable part 2 is inverted, and then materials are filled from the bottom of the inner sleeve 21 of the movable part 2. The bottle cap seat 1 is also inverted and then connected to the movable part 2. Thus, the structure of adding a cap to the top of the movable part 2 can be eliminated through the above structure, which greatly simplifies the structure, makes it more compact, makes the sealing performance easier to control, and greatly reduces the production difficulty and production cost.

[0034] As a preferred option, such as Figure 2 and Figure 4As shown, the inner assembly cylinder 22 is also provided with a guide groove 222 on its side wall for the limiting boss 131 to slide into the strip groove 221. The lower end of the guide groove 222 is open, so that the inner assembly cylinder 22 can be inserted into the outer assembly cylinder 13 from top to bottom. The guide groove 222 is provided with an inclined first guide slope 223 on the side near the strip groove 221. The top of the limiting boss 131 is provided with a second guide slope 132 that is inclined in the opposite direction to the strip groove 221. In this way, when the movable part 2 is installed and connected to the bottle cap seat 1, the limiting boss 131 slides along the guide groove 222 and slides into the strip groove 221 through the first guide slope 223, making the installation more convenient. The second guide slope 132 can make the limiting boss 131 slide more smoothly in the strip groove 221.

[0035] As a preferred option, such as Figures 2 to 5 As shown, the mounting sleeve 11 is also provided with a flared section 117 located below the third mounting ring 116 and with a larger diameter than the third mounting ring 116, which makes the connection between the product and the beverage bottle more compatible. The flared section 113 can cover some connection structures and improve the appearance.

[0036] Example 2

[0037] This embodiment introduces a storage bottle cap that is compatible with multiple bottle types. The difference between this embodiment and Embodiment 1 lies in the structural design of the hopper opening structure 3. Figures 6 to 8 As shown, the bottle cap holder 1 has a top-open storage trough 10. The bottom of the storage trough 10 is formed by a thin-walled base plate 14. The movable member 2 covers the top of the storage trough 10 and forms the storage bin 100 with the inner wall of the storage trough 10. The bin opening structure 3 includes a deformable pressing part 23 located in the middle of the movable member 2 for manual pressing. The pressing part 23 is connected to a pressing column 24 that can press and pierce the thin-walled base plate 14 when pressed down. The movable member 2 is made of elastic material such as silicone, or the pressing part 23 of the movable member 2 is partially made of elastic material such as silicone. When the user presses down the pressing part 2, the pressing column 24 presses against the thin-walled base plate 14 and pierces the thin-walled base plate 14, thus opening the storage bin 100. To facilitate the pressing column 24 piercing the thin-walled base plate 14, as follows: Figure 7 As shown, the thin-walled base plate 14 is provided with at least one cutting groove 141. When the top pressure column 24 presses against the thin-walled base plate 14, the cutting groove 141 on the thin-walled base plate 14 is torn.

[0038] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A refill bottle cap capable of being compatible with a plurality of bottle types, characterized in that: It includes a bottle cap holder (1) and a movable part (2) connected to the bottle cap holder (1), which together form a storage bin (100) for storing materials. A bin opening structure (3) is provided between the bottle cap holder (1) and the movable part (2) to open the storage bin (100). The bottle cap holder (1) includes an installation sleeve (11) for connecting to the bottle mouth (A) of the bottle body. The inner side wall of the installation sleeve (11) is provided with at least a first threaded section (111), a second threaded section (112) and a third threaded section (113) for threading with bottle mouths of different specifications. ​ 2. The storage bottle cap compatible with multiple bottle types according to claim 1, characterized in that: Of the three threaded segments, the first threaded segment (111), the second threaded segment (112), and the third threaded segment (113), at least two of them are connected end to end.

3. The storage bottle cap compatible with multiple bottle types according to claim 2, characterized in that: The mounting sleeve (11) has a first mounting ring (114), a second mounting ring (115) and a third mounting ring (116) arranged sequentially from top to bottom with gradually increasing diameters. The first threaded section (111) is disposed on the inner wall of the first mounting ring (114), the second threaded section (112) is disposed on the inner wall of the second mounting ring (115), and the third threaded section (113) is disposed on the inner wall of the third mounting ring (116).

4. The storage bottle cap compatible with multiple bottle types according to claim 3, characterized in that: The second threaded segment (112) and the third threaded segment (113) are connected end to end, and the pitch of the third threaded segment (113) is greater than the pitch of the second threaded segment (112).

5. The storage bottle cap compatible with multiple bottle types according to claim 3, characterized in that: The mounting sleeve (11) also has a flared section (117) located below the third mounting ring (116) and having a larger diameter than the third mounting ring (116).

6. The storage bottle cap compatible with multiple bottle types according to any one of claims 1-4, characterized in that: The bottle cap holder (1) also includes an outer sleeve (12) connected to the mounting sleeve (11). When the bottle cap holder (1) is connected to the bottle body, the outer sleeve (12) is located at the position corresponding to the inside of the bottle mouth (A). The movable part (2) includes an inner sleeve (21) with an open bottom that can move up and down relative to the outer sleeve (12). The bottom of the outer sleeve (12) is provided with a sealing part (121) that seals the bottom of the inner sleeve (21) when the inner sleeve (21) moves downward. When the inner sleeve (21) moves downward, it and the sealing part (121) form the storage bin (100). The outer sleeve (12) 12) A discharge port (122) is provided at the bottom so that the material in the storage bin (100) can be discharged from the discharge port (122) when the inner sleeve (21) moves upward. An outer assembly cylinder (13) is connected above the outer sleeve (12), and an inner assembly cylinder (22) is connected above the inner sleeve (21). The bin opening structure (3) includes a strip groove (221) that is set on the side wall of the inner assembly cylinder (22) and is inclined or partially inclined. The bin opening structure (3) also includes a limiting boss (131) that is set on the inner side wall of the outer assembly cylinder (13) and extends into the strip groove (221).

7. The storage bottle cap compatible with multiple bottle types according to claim 6, characterized in that: The inner assembly cylinder (22) is also provided with a guide groove (222) on its side wall for the limiting boss (131) to slide into the strip groove (221). The lower end of the guide groove (222) is open, so that the inner assembly cylinder (22) can be inserted into the outer assembly cylinder (13) from top to bottom. The guide groove (222) is provided with an inclined first guide slope (223) on the side near the strip groove (221). The top of the limiting boss (131) is provided with a second guide slope (132) that is inclined in the opposite direction to the strip groove (221).

8. The storage bottle cap compatible with multiple bottle types according to claim 5, characterized in that: The movable part (2) consists of a cylindrical body (2a) that runs vertically through the body and a top cover (2b) that seals the top of the cylindrical body (2a).

9. The storage bottle cap compatible with multiple bottle types according to claim 1, characterized in that: The bottle cap holder (1) is provided with a top-open storage trough (10). The bottom of the storage trough (10) is formed by a thin-walled base plate (14). The movable part (2) is sealed on the top of the storage trough (10) and forms the storage bin (100) with the inner wall of the storage trough (10). The bin opening structure (3) includes a deformable pressing part (23) located in the middle of the movable part (2) for pressing by hand. The pressing part (23) is connected to a pressing column (24) that can press and pierce the thin-walled base plate (14) when it is pressed down.

10. The storage bottle cap compatible with multiple bottle types according to claim 9, characterized in that: The thin-walled base plate (14) is provided with at least one cutting groove (141). When the top pressure column (24) presses against the thin-walled base plate (14), the cutting groove (141) on the thin-walled base plate (14) is torn.

Citation Information

Patent Citations

  • Separating type bottle cap convenient unsealing structure

    CN221915509U