Bottle cap structure

Abstract

The invention discloses a bottle cap structure and relates to the technical field of packaging containers, the bottle cap structure comprises a bottle body and a bottle cap, the bottle cap is connected to a bottle opening of the bottle body and can be fed in the axial direction of the bottle body, a storage bin is arranged in the bottle cap, a breaking end is arranged at the bottom of the storage bin, a protruding part is arranged on the inner side of the bottle opening of the bottle body, and the bottle cap is connected to the bottle opening of the bottle body. The protruding part is used for abutting against the crushing end and enabling the crushing end to be broken. The space of the storage bin is utilized to the maximum extent, meanwhile, the whole operation is convenient and fast, the user experience is improved, and compared with the prior art, remarkable improvement is achieved. The method can be used in the fields of skin care products, food, beverages, health care products, medical treatment and the like.

Description

Technical Field

[0001] This application relates to the technical field of packaging containers, and in particular to a bottle cap structure. Background Technology

[0002] In the production of food, beverages, health products, and medical products, high-temperature sterilization or hot-filling processes can cause irreversible damage to the substances inside the product (such as active ingredients, flavorings, probiotics, etc.), seriously affecting the product's quality, taste, nutritional value, and shelf life. To solve this problem, the industry has developed a separate-filling cap structure, in which substances susceptible to high temperatures are individually packaged in a storage compartment within the cap, isolated from the main ingredient in the bottle. When needed, the substances in the storage compartment are released into the bottle and mixed through a specific operation.

[0003] Currently available bottle caps for refilling typically employ a press-down mechanism on the cap to release the material from the storage compartment, along with a breaking mechanism consisting of a pin or piercing element at the bottom or side of the storage compartment. When the user presses the cap, the pin or piercing element moves downward, piercing the sealing film or weak point of the storage compartment, allowing the material to fall into the bottle.

[0004] However, this traditional refillable bottle cap design requires components such as the ejector pin and pressing spring to be pre-installed inside or closely fitted to the storage hopper, occupying the effective volume of the storage hopper and resulting in a significant reduction in storage space utilization and limited loading capacity. At the same time, the complex internal structure increases the difficulty and cost of the production process.

[0005] Therefore, there is an urgent need for a simple, space-efficient, and easy-to-use dispensing cap structure that can effectively protect heat-sensitive substances, achieve efficient release, and improve the user experience. Summary of the Invention

[0006] In view of the problems existing in the prior art, this application provides a bottle cap structure.

[0007] This application provides a bottle cap structure, which adopts the following technical solution: A bottle cap structure includes a bottle body and a bottle cap. The bottle cap is connected to the bottle mouth of the bottle body and can be fed along the axial direction of the bottle body. A storage bin is provided inside the bottle cap, and a crushing end is provided at the bottom of the storage bin. A protrusion is provided on the inner side of the bottle mouth of the bottle body, and the protrusion is used to abut against the crushing end and break the crushing end.

[0008] Optionally, the crushing end is integrally formed with the bottle cap, and a cutting groove is provided on the crushing end along the circumference of the bottle cap to form a continuous weak end at the bottom of the crushing end. The protrusion is used to abut against the end face of the crushing end located inside the cutting groove.

[0009] Optionally, an inner support platform is provided on the inner side of the bottle mouth of the bottle body, the protrusion is provided on the inner support platform, and a receiving part is also provided on the inner support platform. The receiving part is used to abut the crushed end and lift the crushed end after crushing.

[0010] Optionally, after the protrusion contacts the crushing end, the bottle cap continues to feed along the axial direction of the bottle body, and the bottom end of the storage bin abuts against the end face of the inner support platform.

[0011] Optionally, the receiving part is provided with a flow guiding notch.

[0012] Optionally, a lower edge is provided on the bottle body and below the bottle cap, and an easy-tear limiting strip is provided between the lower edge and the bottle cap. The easy-tear limiting strip is fixedly connected to the bottle cap. Multiple anti-rotation blocks are provided on the side wall of the bottle body along the circumference of the bottle body. Multiple limiting blocks are provided on the inner side wall of the easy-tear limiting strip. The limiting blocks are used to engage between adjacent anti-rotation blocks.

[0013] Optionally, the inner side of the bottle cap is provided with an inner seal and an outer seal respectively. The outer side of the inner seal is provided with an annular pressing part for abutting against the inner side of the bottle mouth of the bottle body, and the annular pressing part is provided with an arc surface. The outer seal is used to abut against the outer side of the bottle mouth of the bottle body.

[0014] Optionally, the top of the bottle cap is provided with an opening communicating with the bottle cap, the bottle cap is provided with a top cover for closing the opening, and a fixing structure is provided between the bottle cap and the top cover for fixing the top cover to the bottle cap.

[0015] Optionally, the fixing structure includes a first annular locking protrusion disposed on the outer side wall of the bottle cap along the circumference of the bottle cap, and a second annular locking protrusion disposed on the inner side wall of the upper cover along the circumference of the upper cover, wherein both the first annular locking protrusion and the second annular locking protrusion are arranged in a smooth, streamlined shape.

[0016] Optionally, the upper cover is provided with a compression sealing ring, which is integrally formed with the upper cover, and an insertion groove is formed between the compression sealing ring and the inner sidewall of the upper cover for the top opening of the bottle cap to be inserted, and the compression sealing ring is used to abut against the inner sidewall of the bottle cap.

[0017] In summary, this application includes at least one of the following beneficial technical effects: 1. This application achieves this by feeding the bottle cap axially along the bottle body and using a protrusion to break the crushing end, allowing the material in the discharge bin to enter the bottle body and mix with the material already inside. This completely eliminates the traditional push-type ejector pin structure, maximizing the utilization of the storage bin space and increasing the bin's loading capacity by 30%-50%. Simultaneously, the entire operation is convenient and quick, improving the user experience and representing a significant improvement over existing technologies.

[0018] 2. This application, through the integrated crushing end and cutting edge groove design, ensures structural strength while precisely controlling weak points, ensuring that the protrusion can break along a predetermined trajectory when it comes into contact, and the release process is stable and reliable, avoiding material residue or splashing problems caused by irregular breakage; 3. This application uses a flow guide notch design to allow materials in the storage bin to flow quickly and smoothly into the bottle, avoiding material accumulation and residue at the receiving part, ensuring uniform mixing, and improving the product user experience.

[0019] 4. This application improves the sealing reliability between the bottle cap and the bottle mouth through a dual sealing structure of internal and external seals, especially the design of the arc-shaped annular pressing part, effectively preventing leakage of liquid inside the bottle or entry of external air, and extending the product's shelf life. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is a structural cross-sectional view of Embodiment 1 of this application; Figure 3 yes Figure 2 Enlarged view of section A; Figure 4 This is a schematic diagram of the bottle cap structure used in Embodiment 1 of this application; Figure 5 This is a schematic diagram of the structure of the protrusion used in Embodiment 2 of this application; Figure 6 This is a schematic diagram of the structure of the protrusion used in Embodiment 3 of this application; Figure 7 This is a schematic diagram of the structure of the protrusion in Embodiment 4 of this application.

[0021] Explanation of reference numerals in the attached drawings: 1. Bottle body; 11. Protrusion; 12. Inner support; 13. Receiving part; 14. Flow guide notch; 15. Lower edge; 16. Anti-rotation block; 2. Bottle cap; 21. Storage bin; 22. Crushing end; 221. Blade groove; 23. Easy-tear limiting strip; 231. Limiting block; 24. Inner seal; 25. Outer seal; 26. First annular protrusion; 27. Hinge; 3. Top cover; 31. Second annular protrusion; 32. Compression sealing ring. Detailed Implementation

[0022] The following will be combined with the appendix Figure 1 -Appendix Figure 7 The technical solutions in the embodiments of the present invention are clearly and completely described herein. The described embodiments are only possible technical implementations of the present invention and not all possible implementations. Those skilled in the art can obtain other embodiments in conjunction with the embodiments of the present invention without creative effort, and these embodiments are also within the protection scope of the present invention.

[0023] This application mainly adopts a design in which a bottle cap that can be fed along the axial direction of the bottle body is combined with a protrusion to break the crushing end, which achieves the effect of improving the space utilization of the storage silo, convenient operation and safety and reliability. The following is a further detailed description of this application.

[0024] Example 1

[0025] This application discloses a bottle cap structure. (Refer to...) Figure 1 and Figure 2 The device includes a bottle body 1 and a bottle cap 2. The bottle cap 2 is connected to the bottle opening of the bottle body 1 and can be fed along the axial direction of the bottle body 1. A storage bin 21 is provided inside the bottle cap 2, and a crushing end 22 is provided at the bottom of the storage bin 21. A protrusion 11 is provided on the inner side of the bottle opening of the bottle body 1. As the bottle cap 2 is fed along the axial direction of the bottle body 1, the protrusion 11 breaks the crushing end 22, allowing the material in the storage bin 21 to enter the bottle body 1 and mix with the material in the bottle body 1. This eliminates the need for the traditional push-type ejector pin structure, improves the space utilization of the storage bin 21, and makes the operation more user-friendly and safer.

[0026] Reference Figure 1 Specifically, the bottle cap 2 is threaded to the bottle opening of the bottle body 1. By rotating the bottle cap 2, it can be fed along the axial direction of the bottle body 1. Alternatively, other connection methods can be used between the bottle cap 2 and the bottle body 1, such as snap-fit, as long as the bottle cap 2 can be fed along the axial direction of the bottle body 1.

[0027] Reference Figure 2 and Figure 3 Specifically, the storage bin 21 is used to store substances susceptible to high temperatures, such as active ingredients, flavoring substances, and probiotics. The crushing end 22 is integrally formed with the bottle cap 2, and this integral design ensures structural strength. A cutting edge groove 221 is provided on the crushing end 22 along the circumference of the bottle cap 2. The cutting edge groove 221 can be formed by die stamping or injection molding. The function of the cutting edge groove 221 is to form a continuous weak end at the bottom of the crushing end 22, so that the crushing end 22 can break along a predetermined trajectory when subjected to external force. For example, the cutting edge groove 221 can be an annular groove, making it easier for the end face of the crushing end 22 located inside the cutting edge groove 221 to be broken. Of course, the shape of the cutting edge groove 221 can also be designed into other continuous shapes, such as a spiral shape, according to actual needs. In addition, in order to prevent the broken end 22 from completely separating from the bottle cap 2 and falling off, the cutting groove 221 is not a complete ring shape in the design, thus forming a hinge 27 between the broken end 22 and the bottle cap 2. In this way, even if the weak end is completely separated from the bottle cap 2, the broken end 22 will not fall off the bottle cap 2.

[0028] Furthermore, the crushing end 22 can also adopt other structures. For example, it can be fixed to the opening at the bottom of the storage bin 21 by means of tin foil or other crushing materials, as long as the protrusion 11 can crush the crushing end 22.

[0029] Reference Figure 2 An inner support platform 12 is provided on the inner side of the bottle mouth of the bottle body 1. The inner support platform 12 can be an annular platform formed by injection molding on the inner side of the bottle mouth of the bottle body 1. The protrusion 11 is integrally formed with the inner support platform 12. It can be of any shape and has a certain height to ensure that it can effectively abut against the end face of the broken end 22 located inside the annular groove. When the bottle cap 2 is fed axially along the bottle body 1, the protrusion 11 contacts the broken end 22 and applies pressure as the bottle cap 2 is fed axially, causing the broken end 22 to break.

[0030] Reference Figure 2 Specifically, the protrusion 11 adopts a block structure, with both side walls of the protrusion 11 inclined and gradually approaching each other in the direction away from the inner support 12. The top of the protrusion 11 adopts an arc-shaped structure. This structural design of the protrusion 11 gives it sufficient structural strength. The arc-shaped top of the protrusion 11 makes it smoother when it comes into contact with and crushes the crushing end 22, and prevents the protrusion 11 from breaking and causing debris to enter the bottle body 1.

[0031] Reference Figure 2 The inner support platform 12 is also provided with a receiving part 13, which is an annular protrusion surrounding the inner support platform 12. The top of the protrusion 11 is higher than the top of the receiving part 13, and the outer wall of the receiving part 13 is chamfered. The function of the receiving part 13 is that after the protrusion 11 breaks the broken end 22, as the bottle cap 2 is fed in, the receiving part 13 abuts against the broken end 22 and pushes the broken end 22 upward, so that the opening at the bottom of the storage bin 21 is enlarged, so that the material in the storage bin 21 can flow out from the bottom and enter the bottle body 1, and prevent the broken end 22 from accidentally falling off the bottle cap 2 completely and entering the bottle body 1. The receiving part 13 is provided with multiple flow guide notches 14, and the protrusion 11 is located at one of the flow guide notches 14. The lower side wall of the flow guide notch 14 adopts a streamlined arc structure design. Its function is to allow the material in the storage bin 21 to flow into the bottle quickly and smoothly, avoid the accumulation and residue of material in the receiving part 13, and ensure the uniformity of mixing.

[0032] Reference Figure 2Furthermore, after the protrusion 11 contacts the crushing end 22, the bottle cap 2 continues to feed along the axial direction of the bottle body 1, and the bottom end of the storage bin 21 abuts against the end face of the inner support platform 12. At this point, the bottle cap 2 cannot continue to feed downwards. By limiting the feeding distance of the bottle cap 2 through the inner support platform 12, it is ensured that the crushing end 22 is fully crushed and the material is completely released, while avoiding overfeeding that would damage the structure of the crushing end 22 and cause it to fall completely off the bottle cap 2. This achieves the best balance between operating stroke and structural reliability.

[0033] Reference Figure 1 and Figure 2 A lower edge 15 is provided on the bottle body 1 and below the bottle cap 2. The lower edge 15 can be an annular protrusion integrally formed on the outer side of the bottle body 1. An easy-tear limiting strip 23 is provided between the lower edge 15 and the bottle cap 2. The easy-tear limiting strip 23 can be a long strip of plastic, with one end fixedly connected to the bottle cap 2, such as by heat fusion welding. The function of the easy-tear limiting strip 23 is to provide intuitive anti-counterfeiting and first-time opening indication functions, while preventing the bottle cap 2 from being accidentally fed in during transportation, thus enhancing the product's sealing and transportation safety.

[0034] Reference Figure 1 and Figure 4 Furthermore, in order to prevent the bottle cap 2 from rotating and feeding along the axial direction of the bottle body 1 without tearing the easy-tear limiting strip 23, multiple anti-rotation blocks 16 are provided on the side wall of the bottle body 1 along the circumference of the bottle body 1, and multiple limiting blocks 231 are provided on the inner side wall of the easy-tear limiting strip 23. The limiting blocks 231 are used to lock into the adjacent anti-rotation blocks 16 to provide a certain rotation limit for the bottle cap 2, thereby further improving the safety during transportation.

[0035] Reference Figure 2 The inner side of the bottle cap 2 is provided with an inner seal 24 and an outer seal 25, which can be annular structures integrally injection molded with the bottle cap 2. The outer part of the inner seal 24 has an annular pressing part with a curved surface. This curved surface design allows for better contact with the inner side of the bottle opening of the bottle body 1, achieving a sealing effect. The outer seal 25 is used to abut against the outer side of the bottle opening of the bottle body 1. The double sealing structure of the inner seal 24 and the outer seal 25 effectively prevents leakage of liquid from the bottle or the entry of external air, extending the product's shelf life.

[0036] Reference Figure 2The bottle cap 2 has an opening at its top that communicates with the bottle cap 2. The opening can be round or square, used to add material into the storage bin 21. The bottle cap 2 also has an upper cover 3 for closing the opening. The upper cover 3 can be a plastic cap. A fixing structure is provided between the bottle cap 2 and the upper cover 3. The fixing structure includes a first annular protrusion 26 arranged circumferentially on the outer wall of the bottle cap 2, and a second annular protrusion 31 arranged circumferentially on the inner wall of the upper cover 3. Both the first annular protrusion 26 and the second annular protrusion 31 have a smooth, streamlined design. When the upper cover 3 is pressed against the top of the bottle cap 2, the first annular protrusion 26 and the second annular protrusion 31 engage with each other, thereby fixing the upper cover 3 to the top of the bottle cap 2. The smooth, streamlined design of the first annular protrusion 26 and the second annular protrusion 31 makes the installation of the upper cover 3 smoother.

[0037] Reference Figure 2 Furthermore, to improve the sealing between the top cover 3 and the bottle cap 2, a compression sealing ring 32 is provided inside the top cover 3. The compression sealing ring 32 is integrally formed with the top cover 3, and an insertion groove is formed between the compression sealing ring 32 and the inner sidewall of the top cover 3 for the top opening of the bottle cap 2 to be inserted. The end of the compression sealing ring 32 is also provided with an angle to facilitate guiding the edge of the top opening of the bottle cap 2 into the insertion groove. When the top cover 3 is fastened to the top of the bottle cap 2, the edge of the top opening of the bottle cap 2 is inserted into the insertion groove formed between the compression sealing ring 32 and the inner sidewall of the top cover 3. At the same time, the inner sidewall of the top of the bottle cap 2 compresses the compression sealing ring 32, causing the compression sealing ring 32 to press tightly against the inner sidewall of the bottle cap 2, further enhancing the sealing effect, preventing the material in the storage bin 21 from getting damp or contaminated, and ensuring the reliability of the secondary seal.

[0038] The implementation principle of the bottle cap structure in this application embodiment is as follows: This application, through the design of a bottle cap 2 that can be fed along the axial direction of the bottle body 1 and the protrusion 11 breaking the crushing end 22, abandons the traditional press-type ejector pin structure, greatly improving the space utilization rate of the storage bin 21, allowing the storage bin 21 to hold more material. The one-piece molded crushing end 22 and the cutting edge groove 221 design ensure the stability and reliability of the crushing process, avoiding material residue or splashing problems. The setting of structures such as the inner support platform 12, the receiving part 13, and the guide notch 14 ensures the smooth release of material and uniform mixing. The easy-tear limiting strip 23, the inner seal 24, the outer seal 25, and the sealing structure of the top cover 3 enhance the product's sealing performance, safety, and anti-counterfeiting. Moreover, the entire operation is convenient and quick, improving the user experience, and has made significant improvements and enhancements compared to the prior art. It can be used in multiple fields such as skin care products, food, beverages, health products, and medical care.

[0039] Example 2

[0040] The difference from Embodiment 1 lies in the different positions of the protrusions 11. Specifically, refer to... Figure 5 In this embodiment, the protrusion 11 is provided at the top of the receiving part 13 and adopts an arc-shaped structural design.

[0041] Example 3

[0042] The difference from Embodiment 1 lies in the specific structure of the protrusion 11. Specifically, refer to... Figure 6 In this embodiment, the protrusion 11 adopts a triangular structure design and is also located at one of the flow guide gaps 14. The triangular structure design of the protrusion 11 makes it easier to crush the crushing end 22. At the same time, in order to ensure the structural strength of the triangular protrusion 11, the tip of the protrusion 11 is polished to make the tip surface of the protrusion 11 smooth.

[0043] Example 4

[0044] The difference from Embodiment 3 lies in the different location of the protrusion 11. Specifically, refer to... Figure 7 In this embodiment, the protrusion 11 is provided at the top of the receiving part 13, and it also adopts a triangular structural design.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bottle cap structure comprising a bottle body (1) and a bottle cap (2), characterized in that: The bottle cap (2) is connected to the bottle mouth of the bottle body (1) and can be fed along the axial direction of the bottle body (1), a storage bin (21) is arranged in the bottle cap (2), a broken end (22) is arranged at the bottom of the storage bin (21), a protruding part (11) is arranged on the inner side of the bottle mouth of the bottle body (1), and the protruding part (11) is used for abutting against the broken end (22) and breaking the broken end (22).

2. A bottle closure structure according to claim 1, wherein: The broken end (22) is integrally formed with the bottle cap (2), and a blade slot (221) is arranged on the broken end (22) along the circumferential direction of the bottle cap (2), so as to form a continuous weak end at the bottom end of the broken end (22), and the protruding part (11) is used for abutting against the broken end (22) and located at the end face inside the blade slot (221).

3. A bottle closure structure according to claim 2, wherein: An inner bearing platform (12) is arranged on the inner side of the bottle mouth of the bottle body (1), the protruding part (11) is arranged on the inner bearing platform (12), and a bearing part (13) is further arranged on the inner bearing platform (12), the bearing part (13) is used for abutting against the broken end (22) and lifting the broken end (22) after being broken.

4. A bottle closure structure according to claim 3, wherein: When the protruding part (11) contacts the broken end (22), the bottle cap (2) continues to be fed along the axial direction of the bottle body (1), and the bottom end of the storage bin (21) abuts against the end face of the inner bearing platform (12).

5. A bottle closure structure according to claim 3, wherein: A flow guide notch (14) is arranged on the bearing part (13).

6. A bottle closure structure according to claim 1 wherein: A lower edge (15) is arranged on the bottle body (1) and below the bottle cap (2), an easy-to-tear limiting strip (23) is arranged between the lower edge (15) and the bottle cap (2), the easy-to-tear limiting strip (23) is fixedly connected with the bottle cap (2), a plurality of anti-rotation blocks (16) are arranged on the side wall of the bottle body (1) along the circumferential direction of the bottle body (1), a plurality of limiting clamping blocks (231) are arranged on the inner side wall of the easy-to-tear limiting strip (23), and the limiting clamping blocks (231) are used for clamping between adjacent anti-rotation blocks (16).

7. A bottle closure structure according to claim 1 wherein: An inner seal (24) and an outer seal (25) are arranged on the inner side of the bottle cap (2), respectively, an annular compression part is arranged on the outer side of the inner seal (24) and used for abutting against the inner side of the bottle mouth of the bottle body (1), the annular compression part is arranged in an arc surface, and the outer seal (25) is used for abutting against the outer side of the bottle mouth of the bottle body (1).

8. A bottle closure structure according to claim 1 wherein: An opening is arranged at the top end of the bottle cap (2) and communicates with the bottle cap (2), an upper cap (3) is arranged on the bottle cap (2) and used for closing the opening, and a fixing structure is arranged between the bottle cap (2) and the upper cap (3) and used for fixing the upper cap (3) on the bottle cap (2).

9. A bottle closure structure according to claim 8, wherein: The fixing structure comprises a first annular clamping convex (26) arranged on the outer side wall of the bottle cap (2) along the circumferential direction of the bottle cap (2) and a second annular clamping convex (31) arranged on the inner side wall of the upper cap (3) along the circumferential direction of the upper cap (3), and the first annular clamping convex (26) and the second annular clamping convex (31) are both arranged in a smooth streamline shape.

10. A bottle closure structure according to claim 8, wherein: The upper cover (3) is provided with an extrusion sealing ring (32), the extrusion sealing ring (32) is integrally formed with the upper cover (3), and an insertion slot for inserting the top opening of the bottle cap (2) is formed between the extrusion sealing ring (32) and the inner side wall of the upper cover (3), and the extrusion sealing ring (32) is used for abutting against the inner side wall of the bottle cap (2).

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