Leak-proof eye cream tube assembly

By using a guide and limiting structure and a multi-seal ring design, the problem of poor sealing of the eye cream tube is solved, achieving efficient sealing and a stable connection, thus improving the user experience.

CN224577113UActive Publication Date: 2026-07-31DONGGUAN YUANHOU LNDUSTRIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN YUANHOU LNDUSTRIAL CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The existing eye cream tubes are prone to loosening or gaps, leading to leakage, which affects the user experience and results in product waste.

Method used

The design employs a guide limiting structure and multiple sealing rings, combined with threaded connections, to ensure precise alignment and secure connection between the cover and the pipe head. This includes the cooperation of the guide block and guide groove, and the limiting protrusion and limiting inclined block, enhancing sealing performance and stability.

Benefits of technology

It achieves a highly efficient seal for the eye cream, preventing leakage, improving ease of use and reliability, and ensuring that the cap is not easily opened during transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a leak-proof eye cream tube assembly, comprising a tube body, a tube head, and a cap. The tube head is integrally formed at the output end of the tube body, and the cap is installed on the outside of the tube head. The cap includes a top cap and a ring cap. The top cap is rotatably mounted on the outside of the ring cap. A plug is integrally formed at the top inner end of the top cap, and a first sealing ring is embedded along the lower outer edge of the plug. Guide blocks are integrally formed on both sides of the inside of the top cap. The output end of the tube head has an opening, and the outside of the tube head has an integrally formed external thread. The inner wall of the ring cap has an integrally formed internal thread, and the lower inner wall of the ring cap has a limiting protrusion evenly distributed along a ring. This utility model enhances the sealing performance and prevents leakage through double sealing, and achieves precise guidance and stable limiting through multiple combinations, making operation convenient, ensuring a firm fit, and solving the problems of leakage and misalignment.
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Description

Technical Field

[0001] This utility model relates to the field of eye cream tubes, specifically to a leak-proof eye cream tube assembly. Background Technology

[0002] Existing eye cream tube assemblies typically consist of a tube body, a tube head, and a cap. The tube head is connected to the tube body, and the cap is used to close the tube head to achieve a seal.

[0003] Currently, most eye cream tubes on the market use simple snap-fit ​​or threaded connections to seal the cap and tube. When using snap-fit ​​connections, the fit between the cap and tube is often not precise enough. After long-term use, the snaps are prone to loosening, leading to a decrease in sealing performance. This allows eye cream to easily leak out from the gaps, resulting in product waste and contamination of the tube's exterior and the user's clothing, bags, etc.

[0004] While caps with ordinary threaded connections improve connection stability to some extent, their sealing structure is relatively simple. They mostly rely on a simple fit between the end of the cap and the end of the tube to achieve a seal. When subjected to external pressure or temperature changes, gaps can easily appear on the mating surface, making it difficult to avoid leakage. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned defects and provide a leak-proof eye cream tube assembly. It improves the connection structure between the cap and the tube head by setting a sealing and guiding limiting structure, which solves the technical problems of leakage caused by poor sealing and unstable connection of the cap in the prior art.

[0006] The objective of this utility model is achieved through the following means:

[0007] A leak-proof eye cream tube assembly includes a tube body, a tube head, and a cap. The tube head is integrally formed at the output end of the tube body. The cap is installed on the outside of the tube head. The cap includes a top cap and a ring cap. The top cap is rotatably mounted on the outside of the ring cap. A plug is integrally formed at the top inner end of the top cap. A first sealing ring is embedded along the lower outer edge of the plug. Guide blocks are integrally formed on both sides of the inside of the top cap. The output end of the tube head has a tube opening, and the plug is adapted to the tube opening. An external thread is integrally formed on the outside of the tube head. An internal thread is integrally formed on the inner wall of the ring cap, and the external thread is adapted to the internal thread. The lower inner wall of the ring cap has a ring-shaped groove evenly distributed along its circumference. The tube head has limiting protrusions, and limiting inclined blocks are provided on both sides of the tube head near the limiting protrusions. The limiting protrusions and limiting inclined blocks are adapted to each other. Guide grooves are opened on both sides of the tube head. The inner wall of the top cover has integrally formed limiting protrusions on both sides, and the limiting protrusions are adapted to the guide grooves. This allows the plug to be accurately inserted into the tube opening, forming a highly efficient sealing structure with the first sealing ring, effectively preventing eye cream leakage. At the same time, the combination of threaded engagement and multiple guiding and limiting structures ensures that the cover will not be misaligned during the closing process. After closing, the connection is firm and stable, greatly improving the overall sealing performance and reliability of the structure, and bringing users a more convenient and clean user experience.

[0008] Furthermore, the upper end of the tube head is integrally formed with a sealing groove, and the inner top of the top cover is integrally formed with a retaining ring, which serves as a second layer of protection to prevent eye cream leakage.

[0009] Furthermore, a second sealing ring is embedded in the lower outer edge of the retaining ring, the retaining ring is adapted to the sealing groove, and the second sealing ring improves the sealing performance between the retaining ring and the sealing groove.

[0010] Furthermore, the outer surface of the ring cover is provided with anti-slip texture, and the anti-slip texture is integrally formed with the ring cover, thereby improving the anti-slip performance of the outer surface of the ring cover.

[0011] Furthermore, an iron ring is installed on the outer end of the ring cover near the tube body, and the iron ring is fixedly connected to the ring cover.

[0012] Furthermore, a magnet is installed on the outer edge of the tube near the tube head, and the magnet is fixedly connected to the tube body. The magnet attracts the iron ring through magnetic force to improve the stability of the cover.

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

[0014] This utility model achieves a seal on the tube opening by fitting a plug inside the top cover to the tube opening, and embedding a first sealing ring on the lower edge of the plug, thus enhancing the sealing performance and preventing eye cream leakage. This solves the problem of leakage caused by poor sealing in existing eye cream tubes. Through the threaded engagement between the ring cap and the tube head, as well as the mutual cooperation between the guide block and the guide groove, and the limiting protrusion and the limiting inclined block, precise guidance and stable positioning are achieved during the cap closing process. This provides the advantages of convenient operation and a firm fit, solving the problem of unstable connection when the cap is closed in existing systems. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a leak-proof eye cream tube assembly according to the present invention;

[0016] Figure 2 This is a perspective view of the cap and tube body of a leak-proof eye cream tube assembly according to the present invention in a separated state.

[0017] Figure 3 This is a perspective view of the cap structure of a leak-proof eye cream tube assembly according to this utility model;

[0018] Figure 4 This is a cross-sectional view of the cap structure of a leak-proof eye cream tube assembly according to this utility model;

[0019] In the diagram, 1. Pipe body; 2. Top cover; 3. Ring cover; 4. Anti-slip texture; 5. Iron ring; 6. Magnet; 7. Pipe head; 8. Guide groove; 9. Pipe opening; 10. Sealing groove; 11. External thread; 12. Limiting wedge; 13. Limiting protrusion; 14. Internal thread; 15. Guide block; 16. Plug; 17. First sealing ring; 18. Retaining ring; 19. Second sealing ring. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. This embodiment refers to... Figures 1-4The present invention relates to a leak-proof eye cream tube assembly, comprising a tube body 1, a tube head 7, and a cap. The tube head 7 is integrally formed at the output end of the tube body 1. The cap is installed on the outside of the tube head 7 and includes a top cap 2 and a ring cap 3. The top cap 2 is rotatably installed on the outside of the ring cap 3. A plug 16 is integrally formed at the top of the inside of the top cap 2, and a first sealing ring 17 is embedded in the lower outer edge of the plug 16. Guide blocks 15 are integrally formed on both sides of the inside of the top cap 2. The output end of the tube head 7 has a tube opening 9, and the plug 16 is adapted to the tube opening 9. The outer surface of the tube head 7 is integrally formed with an external thread 11, and the inner wall of the ring cover 3 is integrally formed with an internal thread 14. The external thread 11 and the internal thread 14 are adapted to each other. The lower end of the inner wall of the ring cover 3 is provided with a limiting protrusion 13 evenly distributed along the ring. The outer sides of the tube head 7 near the limiting protrusion 13 are provided with limiting inclined blocks 12, and the limiting protrusion 13 and the limiting inclined blocks 12 are adapted to each other. The outer sides of the tube head 7 are provided with guide grooves 8. The inner walls of the top cover 2 are integrally formed with limiting protrusions 13, and the limiting protrusions 13 and the guide grooves 8 are adapted to each other.

[0021] like Figure 3 and Figure 4 As shown, the upper end of the tube head 7 has an integrally formed sealing groove 10, and the inner top of the top cover 2 has an integrally formed retaining ring 18. The retaining ring 18 is used to provide a second layer of protection to prevent eye cream from leaking.

[0022] like Figure 3 and Figure 4 As shown, a second sealing ring 19 is embedded in the lower outer edge of the retaining ring 18. The retaining ring 18 is adapted to the sealing groove 10, and the second sealing ring 19 improves the sealing performance between the retaining ring 18 and the sealing groove 10.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the outer surface of the ring cover 3 is provided with anti-slip texture 4, and the anti-slip texture 4 is integrally formed with the ring cover 3. The anti-slip texture 4 improves the anti-slip performance of the outer surface of the ring cover 3.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an iron ring 5 is installed on the outer end of the ring cover 3 near the tube body 1, and the iron ring 5 is fixedly connected to the ring cover 3.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a magnet 6 is installed on the outer edge of the tube body 1 near the tube head 7, and the magnet 6 is fixedly connected to the tube body 1. The magnet 6 attracts the iron ring 5 through magnetic force to improve the stability of the cover.

[0026] In this embodiment, a leak-proof eye cream tube assembly is provided. When closing the cap, the cap is placed on the upper end of the tube head 7. The top cap 2 is held and placed over the tube head 7. The top cap 2 is rotated so that the guide block 15 aligns with the guide groove 8. Then, the ring cap 3 is rotated so that the internal thread 14 of the ring cap 3 and the external thread 11 of the tube head 7 are engaged, converting the rotational motion of the ring cap 3 into linear motion. This causes the top cap 2 to descend under the pull of the ring cap 3 and the engagement of the guide block 15 with the guide groove 8. The plug 16 and the first sealing ring 17 are then inserted. The inlet 9 is sealed, and the retaining ring 18 and the second sealing ring 19 are inserted into the sealing groove 10 for sealing. At this time, as the ring cover 3 rotates and descends, the limiting protrusion 13 contacts the limiting inclined block 12. The limiting protrusion 13 rotates along the inclined surface of the limiting inclined block 12. With the slight inclination of the ring cover 3, the limiting protrusion 13 and the limiting inclined block 12 form a one-way ratchet action, thereby preventing the cover from opening in reverse during transportation or carrying. With the magnetic attraction of the magnet 6 to the iron ring 5, the stability of the cover closure is further improved.

[0027] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A leak-proof eye cream tube assembly, comprising a tube body, a tube head, and a cap, wherein the tube head is integrally formed on the output end of the tube body, and the cap is installed on the outside of the tube head, characterized in that: The cover includes a top cover and a ring cover. The top cover is rotatably mounted on the outside of the ring cover. A plug is integrally formed at the top of the inside of the top cover. A first sealing ring is embedded in the lower outer edge of the plug. Guide blocks are integrally formed on both sides of the inside of the top cover. The output end of the pipe head has a pipe opening, and the plug is adapted to the pipe opening. The outside of the pipe head has an integrally formed external thread. The inner wall of the ring cover has an integrally formed internal thread, and the external thread is adapted to the internal thread. The lower inner wall of the ring cover has a limiting protrusion evenly distributed along the ring. Limiting inclined blocks are provided on both sides of the outside of the pipe head near the limiting protrusions, and the limiting protrusions are adapted to the limiting inclined blocks. Guide grooves are provided on both sides of the outside of the pipe head. Limiting protrusions are integrally formed on both sides of the inner wall of the top cover, and the limiting protrusions are adapted to the guide grooves.

2. The leak-resistant eye cream tube assembly of claim 1, wherein: The upper end of the pipe head has an integrally formed sealing groove, and the inner top of the top cover has an integrally formed retaining ring.

3. The leak resistant eye cream tube assembly of claim 2, wherein: The lower outer edge of the retaining ring is fitted with a second sealing ring, and the retaining ring is adapted to the sealing groove.

4. The leak-resistant eye cream tube assembly of claim 1, wherein: The outer surface of the ring cover is provided with anti-slip texture, and the anti-slip texture is integrally formed with the ring cover.

5. The leak-resistant eye cream tube assembly of claim 1, wherein: An iron ring is installed on the outer end of the ring cover near the tube body, and the iron ring is fixedly connected to the ring cover.

6. The leak resistant eye cream tube assembly of claim 5, wherein: A magnet is installed on the outer edge of the tube near the tube head, and the magnet is fixedly connected to the tube.