Bottle cap capable of storing materials

By designing a storage-type bottle cap with a thin-walled bottom plate boss and tear groove structure, the problem of uneven material release was solved, achieving rapid, stable, and consistent material release, thus improving user experience and device reliability.

CN223935366UActive Publication Date: 2026-02-24ZHONGSHAN HUIWEI PLASTIC METAL IND
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Patent Information

Application Number
CN202520299058.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-02-24
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Existing storage-type bottle caps are difficult to tear evenly when releasing material, resulting in unstable material release, which may cause blockage or inconsistent flow rate, affecting user experience.

Method used

A material-storing bottle cap was designed, which adopts a structure with a central boss and annular and radial tearing grooves in a thin-walled base plate. Combined with the top pressure column and the piercing part of the support plate, it ensures uniform tearing of materials. The boss is embedded in the receiving groove to stabilize the top pressure, and the bending groove path is optimized to enhance tearing efficiency and consistency.

Benefits of technology

It enables rapid and stable material flow, improves ease of use and product quality control, ensures consistency in material release during each use, and enhances the reliability and flexibility of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a material storable bottle cap, which comprises a bottle cap seat and a cap sealing piece, the bottle cap seat is provided with a material storage cavity with an open top, the cap sealing piece covers the opening of the material storage cavity to enable the cap sealing piece and the inner wall of the material storage cavity to define a sealed material storage space for storing materials, and the bottom of the material storage cavity is formed by a thin-wall bottom plate. A boss protruding upwards is arranged in the middle of the thin-wall bottom plate, an annular tearing groove surrounding the boss is formed in the thin-wall bottom plate, at least one radial tearing groove is further formed in the thin-wall bottom plate, one end of the radial tearing groove is connected with the annular tearing groove, and the other end of the radial tearing groove extends outwards. The pressing part is connected with a jacking column capable of jacking the thin-wall bottom plate when the pressing part is pressed downwards, a containing groove used for containing the boss is formed in the lower end of the jacking column, and the jacking column is provided with a piercing part used for piercing the annular tearing groove or the radial tearing groove and located on the periphery of the containing groove. The bottle cap capable of storing the materials is efficient and stable in discharging.
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Description

Technical Field

[0001] This utility model specifically relates to a bottle cap that can store material. Background Technology

[0002] Most beverage bottles on the market have caps, allowing consumers to simply unscrew the cap and drink. However, some beverages require additional ingredients, leading to the development of detachable caps. These detachable caps typically have the ingredient pre-placed inside the cap's cavity, allowing consumers to mix the ingredient with the beverage after opening the cap. For a specific structure, refer to the inventor's previous patent application, CN202322835761.6, entitled "A Convenient Unsealing Structure for a Detachable Bottle Cap." Many existing traditional, storage-type bottle caps struggle to achieve uniform tearing during material release, resulting in uneven and slow flow of material into the beverage. This uneven tearing not only affects the user experience but may also lead to material residue and incomplete release. Furthermore, the uncontrollable tearing path and irregular tear shape can easily cause material blockage or inconsistent flow rates.

[0003] This utility model was developed precisely because of the aforementioned shortcomings. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a bottle cap that can store materials with high efficiency and stable discharge.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model provides a storage-type bottle cap, including a cap seat and a sealing member. The cap seat has a storage cavity with an open top. The sealing member seals the opening of the storage cavity, so that the sealing member and the inner wall of the storage cavity form a sealed storage space for storing materials. The bottom of the storage cavity is formed by a thin-walled base plate. The thin-walled base plate has an upwardly protruding boss in the middle. The thin-walled base plate has an annular tear groove around the boss. The thin-walled base plate also has at least one radial tear groove. One end of the radial tear groove is connected to the annular tear groove and the other end extends outward. The sealing member has a deformable pressing part in the middle for pressing by hand. The pressing part is connected to a pressing post that can press against the thin-walled base plate when pressed down. The lower end of the pressing post has a receiving groove for accommodating the boss. The pressing post has a piercing part around the receiving groove for piercing the annular tear groove or the radial tear groove.

[0007] As described above, in the receptacle cap, the top pressure post is composed of several support plates distributed circumferentially around the receiving groove, and the lower ends of some or all of the support plates can constitute the piercing portion.

[0008] As described above, the storage-type bottle cap has a pointed tip at the lower end of the support plate located above the annular tear groove, which constitutes the puncture portion.

[0009] As described above, in the restorable bottle cap, the thin-walled base plate has a concave shape that gradually slopes downward from the periphery to the center, and the lower edge of the support plate is also gradually sloped downward from the periphery to the center, so that the lower end of the support plate forms a pointed tip. Furthermore, the angle of inclination of the lower edge of the support plate is greater than the angle of inclination of the thin-walled base plate.

[0010] As described above, the storage-type bottle cap has at least three bending grooves on its thin-walled base plate. The bending grooves are connected end to end to form a polygonal structure centered on the boss. The radial tear grooves correspond to the number of bending grooves. The radial tear grooves are connected to the annular tear grooves, and the other end of the radial tear grooves is connected to the end of the bending grooves.

[0011] As described above, the restorable bottle cap has three bending grooves and three radial tear grooves. The radial tear grooves are evenly distributed along the circumference, and there are two puncture portions that are evenly distributed along the circumference.

[0012] As described above, the capping element has a connecting ring around the opening of the storage chamber and tightly connected to the cap seat. The cap seat has an annular mounting surface around the opening of the storage chamber. The connecting ring matches the shape of the annular mounting surface and is connected to the annular mounting surface by bonding or hot pressing.

[0013] The storage-type bottle cap described above also includes a protective cap, which is fitted onto the bottle cap seat from top to bottom and covers the sealing element.

[0014] As described above, the storage-type bottle cap has an operating groove on the outer wall of the protective cap for manual operation, a snap-fit ​​ring groove on the outer wall of the bottle cap seat, and a snap-fit ​​protrusion on the inner wall of the protective cap that can snap into the snap-fit ​​ring groove.

[0015] As described above, the press part of the restorable bottle cap protrudes upward for manual pressing, the top of the protective cap has a cover part that is corresponding to the press part and arches upward, the outer wall of the bottle cap seat has several vertically arranged locking grooves, and the inner wall of the protective cap has vertically arranged locking ribs that can be locked into the locking grooves.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. A uniform tearing mechanism ensures that the material flows quickly and stably into the beverage bottle, avoiding the problem of unstable material release caused by irregular tears. Structural stability is enhanced by the design of the boss embedded in the receiving groove, ensuring that the boss will not tilt or wobble during pressing, improving tearing efficiency and device reliability. Operational convenience is significantly improved; users only need to gently press the pressing part in the middle of the cap to release the material, greatly simplifying the use process and improving product quality control, ensuring consistent material release each time.

[0018] 2. The protective cover not only increases the product's durability but also prevents accidental triggering, thus improving the user experience;

[0019] 3. The optimized design of the bending groove further refines the tearing path, making the material release more uniform, while reducing the resistance when the top pressure column presses down, thus improving the overall performance.

[0020] 4. The two puncture points are 180° apart along their centers, while the radial tear grooves 14 are evenly distributed around the circumference, with an angle of 120° between each radial tear groove. This design ensures that regardless of how the cap is rotated during installation, at least one puncture point will always be located in the position corresponding to the fragmentation zone. This means that the cap can be installed at any angle without affecting the effective pressure of the top column on the thin-walled base plate, further enhancing the flexibility and reliability of use. This design not only simplifies the assembly process but also ensures optimal tearing effect every time it is used, thereby improving the consistency and stability of material release. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the bottle cap structure according to Embodiment 1 of this utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of the bottle cap according to Embodiment 1 of this utility model;

[0023] Figure 3 This is an exploded view of the bottle cap according to Embodiment 1 of this utility model. Figure 1 ;

[0024] Figure 4 This is an exploded view of the bottle cap according to Embodiment 1 of this utility model. Figure 2 ;

[0025] Figure 5 This is a schematic diagram of the bottle cap in use according to Embodiment 1 of this utility model;

[0026] Figure 6 This is a schematic diagram of the bottle cap structure according to Embodiment 2 of this utility model;

[0027] Figure 7This is an exploded view of the bottle cap according to Embodiment 2 of this utility model;

[0028] Figure 8 This is a schematic diagram of the bottle cap structure according to Embodiment 3 of this utility model;

[0029] Figure 9 This is an exploded view of the bottle cap according to Embodiment 3 of this utility model;

[0030] Figure 10 This is a schematic diagram of the structure of the sealing member according to Embodiment 4 of this utility model;

[0031] Figure 11 This is a schematic diagram of the bottle cap in use according to Embodiment 4 of this utility model. Detailed Implementation

[0032] The utility model will be further described below with reference to the accompanying drawings:

[0033] 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.

[0034] Example 1

[0035] This utility model introduces a storage-type bottle cap for connecting and sealing beverage bottles. For example... Figures 1 to 4As shown, the bottle cap structure includes a bottle cap seat 1 and a sealing member 2. The bottle cap seat 1 has a storage cavity 10 with an open top. The sealing member 2 seals the opening of the storage cavity 10, so that the sealing member 2 and the inner wall of the storage cavity 10 form a sealed storage space for storing materials. The bottom of the storage cavity 10 is formed by a thin-walled bottom plate 11. The thin-walled bottom plate 11 has an upwardly protruding boss 12 in the middle. The thin-walled bottom plate 11 has an annular tear groove 13 around the boss 12. The thin-walled bottom plate 11 also has at least one radial tear groove 14. One end of the radial tear groove 14 is connected to the annular tear groove 13 and the other end extends outward. These radial tear grooves and annular tear grooves can be formed by cutting or by making material thinning areas during injection molding. The sealing member 2 has a deformable pressing part 21 in the middle for manual pressing. The pressing part 21 is connected to a pressing post 22 that can press against the thin-walled base plate 11 when pressed downwards. The lower end of the pressing post 22 has a receiving groove 23 for accommodating the boss 12. The pressing post 22 has a piercing part 24 around the receiving groove 23 for piercing the annular tear groove 13 or the radial tear groove 14. In use, the pressing post 22 presses downwards against the thin-walled base plate 11. At the same time, because the boss 12 is embedded in the receiving groove 23, the boss 12... The material at both locations moves downwards as a whole. Under the guidance of the receiving groove 23, the boss 12 will not tilt or swing, thus causing the middle of the thin-walled base plate 11 to deform vertically downwards. This results in stress concentration between the material at the boss 12 and other parts of the thin-walled base plate 11, causing the boss 12 to tear locally from the thin-walled base plate 11. Simultaneously, due to the stable and vertical downward deformation of the middle of the thin-walled base plate 11, the tensile force on each radial tear groove 14 is more uniform, resulting in a more evenly distributed tear area in a circular region centered on the boss 12. Figure 5 As shown, a relatively uniform opening is formed, allowing the material stored in the storage chamber 10 to flow quickly and stably into the beverage bottle for mixing.

[0036] As a preferred option, such as Figure 3 As shown, the top pressure column 22 is composed of several support plates 221 distributed circumferentially around the receiving groove 23. Each support plate 221 is connected at one end and extends outwards at the other end to form a star shape. The receiving groove 23 is opened at the center position where the support plates 221 are connected, and part of the support plate 221 is hollowed out. The lower end of each support plate 221 can constitute the piercing part 24. Figure 2 and Figure 3 As shown, the lower end of the support plate 221 is provided with a pointed tip located above the annular tear groove 13, which constitutes the puncture part 24.

[0037] As a preferred option, such as Figure 2 and Figure 3As shown, the thin-walled base plate 11 has a concave shape that gradually slopes downwards from the periphery to the center, and the lower edge of the support plate 221 is also gradually sloped downwards from the periphery to the center, forming a pointed tip at the lower end of the support plate 221. Furthermore, the angle of inclination of the lower edge of the support plate 221 is greater than the angle of inclination of the thin-walled base plate 11. Figure 2 As shown, the lower edge of the support plate 221 is inclined at an angle α, while the thin-walled base plate 11 is inclined at an angle β at the corresponding position of the support plate 221. This makes the area of ​​the piercing part 24 abutting against the thin-walled base plate 11 smaller, increasing the friction and causing the stress to concentrate at the contact point between the piercing part 24 and the thin-walled base plate 11.

[0038] As a preferred option, such as Figures 2 to 4 As shown, the sealing member 2 has a connecting ring 25 around the opening of the storage chamber 10 and tightly connected to the bottle cap seat 1. The bottle cap seat 1 has an annular mounting surface 16 around the opening of the storage chamber. The connecting ring 25 matches the shape of the annular mounting surface 16. The connecting ring 25 is connected to the annular mounting surface 16 by bonding or hot pressing. Of course, it can also be connected by adhesive bonding or other methods.

[0039] Example 2

[0040] like Figure 6 and Figure 7 As shown, this utility model introduces a bottle cap that can store material. The difference from Embodiment 1 is that this bottle cap that can store material also includes a protective cap 3. This bottle cap that can store material is composed of a bottle cap seat 1, a sealing member 2 and a protective cap 3. The protective cap 3 is fitted onto the bottle cap seat 1 from top to bottom and covers the sealing member 2.

[0041] As a preferred option, such as Figure 6 and Figure 7 As shown, the outer wall of the protective cover 3 is provided with an operating groove 31 for human hand operation, the outer wall of the bottle cap seat 1 is provided with a snap ring groove 17, and the inner wall of the protective cover 3 is provided with a snap ring 32 that can snap into the snap ring groove 17.

[0042] Example 3

[0043] like Figure 6 and Figure 7As shown, this utility model introduces a bottle cap that can store material. Unlike embodiment one, this bottle cap that can store material also includes a protective cap 3. This bottle cap that can store material is composed of a bottle cap base 1, a sealing member 2, and a protective cap 3. The pressing part 21 protrudes upward for pressing by hand. The top of the protective cap 3 is provided with a cover part 33 that is corresponding to the pressing part 21 and arches upward. The outer side wall of the bottle cap base 1 is provided with several vertically arranged locking grooves 18. The inner side wall of the protective cap 3 is provided with vertically arranged locking ribs 34 that can be locked into the locking grooves 18.

[0044] Example 4

[0045] In this embodiment, the thin-walled base plate 11 has three bending grooves 15. The bending grooves 15 are connected end to end to form a polygonal structure centered on the boss 12. The radial tear grooves 14 correspond in number to the bending grooves 15. The radial tear grooves 14 are connected to the annular tear grooves 13, and their other ends are connected to the endpoints of the bending grooves 15. Figure 3 and Figure 11 As shown, three bending grooves 15 and three radial tearing grooves 14 are provided. The bending grooves 15 form a triangle, enclosing a tear area A. The radial tearing grooves 14 divide the tear area A into multiple fragment areas A1. When the user presses down on the pressing part 21, the top pressure column 22 presses against the bottom of the thin-walled base plate 11, causing the bottom of the thin-walled base plate 11 to deform under force. After the bottom of the thin-walled base plate 11 deforms, stress concentration first occurs at the position of the radial tearing groove 14, which then tears the bottom of the thin-walled base plate 11 along the length of the radial tearing groove 14. Because the bending grooves 15 form a polygonal structure and surround the boss 12, when the boss 12 is subjected to downward thrust, the tear area A surrounded by the bending grooves 15 is more easily deformed, while the material outside the tear area A is less affected. Meanwhile, since the radial tear groove 14 extends from the endpoints of this polygon towards the center, it divides the tear area A into three evenly distributed fragment areas A1. When the top pressure column 22 presses down, it can first generate stress concentration at the position near the center of the radial tear groove 14, so that the radial tear groove 14 is gradually torn from the center to the surrounding area, and each fragment area A1 is separated. This avoids problems such as the top pressure column 22 having large resistance and tilting due to uneven resistance around the surrounding area when the top pressure column 22 presses down. This allows the bottom of the thin-walled bottom plate 11 to crack evenly from the boss 12 along the radial tear groove 14 to the surrounding area. The cracked opening is regular and uniform, ensuring rapid and uniform material discharge.

[0046] As a preferred option, such as Figure 2 As shown, the waistline 151 on the side closer to the boss 12 and the waistline 152 on the side away from the boss 12 of the cross section of the bending groove 15 show that the slope of the waistline 151 is gentler. In this way, when the radial tear groove 14 cracks, the material in each fragment partition A1 can deform and bend at the bending groove 15.

[0047] As a better implementation method, such as Figure 11 As shown, two puncture portions 24 are provided and evenly distributed along the circumference, that is, the included angle between the centers of the two puncture portions 24 is 180°. The radial tear grooves 14 are evenly distributed along the circumference, that is, the included angle between each radial tear groove 14 is 120°. This ensures that no matter what angle the capping member 2 rotates, at least one puncture portion 24 will fall on the position corresponding to the fragment partition A1. Thus, the capping member 2 can be installed at any angle without affecting the pressing effect of the top pressure column 22 on the thin-walled bottom plate 11. In this embodiment, the top pressure column 22 is still composed of several support plates 221, of which two support plates 221a extend downward and are longer than the other support plates 221b, and the lower ends of the two support plates 221a constitute the puncture portions 24.

[0048] 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 bottle cap capable of storing material, characterized in that: The device includes a bottle cap holder (1) and a capping member (2). The bottle cap holder (1) has a storage cavity (10) with an open top. The capping member (2) seals the opening of the storage cavity (10) so that the capping member (2) and the inner wall of the storage cavity (10) form a sealed storage space for storing materials. The bottom of the storage cavity (10) is formed by a thin-walled bottom plate (11). The thin-walled bottom plate (11) has an upwardly protruding boss (12) in the middle. The thin-walled bottom plate (11) has an annular tear groove (13) around the boss (12). The thin-walled bottom plate (11) also has at least one radial tear groove. The radial tear groove (14) is connected at one end to the annular tear groove (13) and extends outward at the other end. The cover (2) is provided with a deformable pressing part (21) in the middle for pressing by hand. The pressing part (21) is connected to a pressing column (22) that can press against the thin-walled bottom plate (11) when it is pressed down. The lower end of the pressing column (22) is provided with a receiving groove (23) for accommodating the boss (12). The pressing column (22) is provided with a piercing part (24) around the receiving groove (23) for piercing the annular tear groove (13) or the radial tear groove (14).

2. The restorable bottle cap according to claim 1, characterized in that: The top pressure column (22) is composed of several support plates (221) distributed around the circumference of the receiving groove (23), and the lower ends of some or all of the support plates (221) can constitute the piercing part (24).

3. The restorable bottle cap according to claim 2, characterized in that: The lower end of the support plate (221) is provided with a tip located above the annular tear groove (13), which constitutes the piercing part (24).

4. The restorable bottle cap according to claim 3, characterized in that: The thin-walled base plate (11) is a concave shape that gradually slopes downward from the periphery to the center. The lower edge of the support plate (221) is set to gradually slope downward from the periphery to the center, so that the lower end of the support plate (221) forms a pointed tip. Furthermore, the angle of inclination of the lower edge of the support plate (221) is greater than the angle of inclination of the thin-walled base plate (11).

5. The reusable bottle cap according to claim 1, characterized in that: The thin-walled base plate (11) has at least three bending grooves (15). The bending grooves (15) are connected end to end to form a polygonal structure centered on the boss (12). The radial tearing grooves (14) correspond to the number of bending grooves (15). The radial tearing grooves (14) are connected to the annular tearing grooves (13), and the other end is connected to the end of the bending grooves (15).

6. The restorable bottle cap according to claim 5, characterized in that: The bending groove (15) and the radial tear groove (14) are each provided in threes. The radial tear groove (14) is evenly distributed along the circumference, and the puncture part (24) is provided in twos and is evenly distributed along the circumference.

7. The restorable bottle cap according to claim 1, characterized in that: The sealing member (2) has a connecting ring (25) around the opening of the storage chamber (10) and tightly connected to the cap seat (1). The cap seat (1) has an annular mounting surface (16) around the opening of the storage chamber. The connecting ring (25) matches the shape of the annular mounting surface (16). The connecting ring (25) is connected to the annular mounting surface (16) by bonding or hot pressing.

8. The restorable bottle cap according to claim 1, characterized in that: It also includes a protective cap (3), which is fitted onto the cap holder (1) from top to bottom and covers the cap (2).

9. The restorable bottle cap according to claim 8, characterized in that: The protective cap (3) has an operating groove (31) on its outer side wall for human hand operation, the bottle cap seat (1) has a snap ring groove (17) on its outer side wall, and the protective cap (3) has a snap ring (32) on its inner side wall that can snap into the snap ring groove (17).

10. The restorable bottle cap according to claim 8, characterized in that: The pressing part (21) protrudes upward for pressing by hand. The top of the protective cover (3) is provided with a cover part (33) that is corresponding to the pressing part (21) and arches upward. The outer side wall of the bottle cap seat (1) is provided with several vertically arranged locking grooves (18). The inner side wall of the protective cover (3) is provided with vertically arranged locking ribs (34) that can be inserted into the locking grooves (18).

Citation Information

Patent Citations

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