A new type of anti-pulling-off bottle cap

Abstract

The utility model relates to a novel anti -pulling -out bottle cap belongs to the technical field of bottle cap design technology. Bottle cap includes outer cover, inner cover, inner plug, wine nozzle and lower pipe sleeve spare, wherein, inner cover is located in the inside of outer cover, wine nozzle is sleeved in the outside of inner plug, the inner wall top of lower pipe sleeve spare is equipped with first retaining table, the outer wall of wine nozzle is equipped with annular card station, and lower pipe sleeve spare and wine nozzle are buckled and are realized clamping through first retaining table and annular card station, the outside of wine nozzle is equipped with outer thread, the inside of inner cover is equipped with inner thread, and inner thread and outer thread are screwed, and the number of meshing teeth of inner thread and outer thread is greater than or equal to 3 teeth, the inner wall of outer cover is equipped with at least one outer cover clamping hook, and the outer wall of inner cover is equipped with a inner cover clamping hook correspondingly, and outer cover clamping hook and inner cover clamping hook correspondingly clamp. The utility model discloses through the structure design of multidimension makes bottle cap each component connection more stable, effectively promotes the anti -pulling -out performance, avoids the problem that the component of bottle cap use separates.

Description

Technical Field

[0001] This utility model relates to the field of bottle cap design technology, and more specifically to a novel anti-pull-out bottle cap. Background Technology

[0002] In today's market, the safety and anti-counterfeiting of bottled products are of paramount importance, leading to the emergence of various combination bottle caps with anti-pull-out functionality. The core anti-pull-out component of these caps is typically a bottle neck assembly. Its working principle involves a plastic clip on the assembly engaging with the outer wall of the bottle lip. When external force is applied to pull the cap outward, the plastic clip is locked in place by the outer wall of the bottle lip. Forcibly pulling out the cap will inevitably damage the plastic clip, rendering the cap irreparable, thus achieving the purpose of verifying authenticity through the bottle cap. However, existing anti-pull-out caps have revealed numerous shortcomings in practical applications.

[0003] Existing anti-pull-out bottle caps generally consist of an outer cap, an inner cap, a spout, a bottle neck, and separate components such as a lower tube and a lower sleeve. During cap assembly, the lower tube is typically installed from bottom to top. First, the lower sleeve is fixed in a specific position, and then the lower tube is inserted from below to complete the assembly. This cap design features a separate lower tube and lower sleeve structure, requiring separate processing and inspection, increasing the number of parts. Assembly requires step-by-step positioning and installation of the lower tube and lower sleeve, reducing production efficiency and demanding higher assembly precision. Furthermore, the separate design of the lower tube and lower sleeve can easily create gaps between them, affecting the sealing effect and potentially causing the connection between the lower tube and lower sleeve to loosen during insertion / removal operations or pouring, compromising long-term structural reliability. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides a new type of anti-pull-out bottle cap to address the technical problem that the anti-pull-out performance of the existing anti-pull-out bottle cap is insufficient.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a novel anti-pull-out bottle cap, including an outer cap, an inner cap, an inner stopper, a spout, and a lower tube assembly; wherein, the inner cap is disposed inside the outer cap; and the spout is sleeved on the outside of the inner stopper;

[0007] The lower tube assembly is an integrally molded structure. The top of the inner wall of the lower tube assembly is provided with a first baffle, and the outer wall of the spout is provided with an annular locking platform. The lower tube assembly and the spout are engaged by the first baffle and the annular locking platform.

[0008] The outer side of the spout is provided with an external thread, and the inner side of the inner cap is provided with an internal thread. The internal thread and the external thread are screwed together, and the number of meshing teeth of the internal thread and the external thread is greater than or equal to 3.

[0009] The inner wall of the outer cover is provided with at least one outer cover hook, and the outer wall of the inner cover is provided with a corresponding inner cover hook, and the outer cover hook and the inner cover hook are engaged accordingly.

[0010] Furthermore, the inner wall of the lower tube assembly is also provided with a limiting plate, which is used to lock the axial position of the spout by engaging with the bottom end of the spout.

[0011] Furthermore, the inner wall of the lower tube assembly is provided with multiple reinforcing ribs, which protrude from the inner wall of the lower tube assembly.

[0012] Furthermore, the inner wall of the spout is provided with multiple bottle neck retainers, which protrude from the inner wall of the spout.

[0013] Furthermore, the top of the lower tube assembly is provided with at least one anti-counterfeiting card block, and the outer side of the outer cover is provided with at least one card slot corresponding to the anti-counterfeiting card block.

[0014] Furthermore, the top of the outer wall of the inner cover is provided with a raised ring, and the top of the inner wall of the outer cover is provided with a positioning groove that matches the raised ring. The raised ring is embedded in the annular positioning groove to achieve positioning of the upper cover and the lower cover.

[0015] Furthermore, a positioning ring is provided at the top of the inner wall of the inner cover.

[0016] Furthermore, the outer wall of the inner cover is provided with anti-rotation teeth, and the inner wall of the outer cover is provided with limiting teeth that cooperate with the anti-rotation teeth.

[0017] Furthermore, the outer wall of the outer cover is provided with anti-slip texture.

[0018] In summary, this utility model has the following beneficial effects:

[0019] This utility model provides a novel anti-pull-out bottle cap. Its lower tube assembly adopts a one-piece molded structure, eliminating the gap in the existing separate lower tube and lower sleeve structures and improving the overall stability of the lower tube structure. Simultaneously, the lower tube assembly is engaged with the annular retaining plate on the outer wall of the spout via a first stop at the top of the inner wall, forming an axial locking limit to prevent the spout from axially disengaging from the lower tube assembly. The spout and inner cap are screwed together by internal and external threads with at least three meshing teeth. This increased number of meshing teeth enhances the strength and friction of the threaded connection, making the threaded fit between the spout and inner cap more secure and less prone to detachment due to external force. Furthermore, the outer cap and inner cap are engaged by corresponding hooks on the outer and inner caps, limiting relative separation between them. This utility model, through its multi-dimensional structural design, makes the connection of each component of the bottle cap more stable, effectively improving the anti-pull-out performance and avoiding the problem of component loosening and separation during use. Attached Figure Description

[0020] Figure 1 This is a three-dimensional assembly drawing of a novel anti-pull-out bottle cap according to this utility model;

[0021] Figure 2 This is a cross-sectional view of a novel anti-pull-out bottle cap according to this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the lower tube assembly of this utility model;

[0023] Figure 4 This is a cross-sectional view of the lower tube assembly of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the spout of this utility model;

[0025] Figure 6 This is a cross-sectional view of the spout of this utility model;

[0026] Figure 7 This is a three-dimensional structural diagram of the inner cover of this utility model;

[0027] Figure 8 This is an isometric structural diagram of the inner cover of this utility model;

[0028] Figure 9 This is a sectional view of the inner cover of this utility model;

[0029] Figure 10 This is a three-dimensional structural diagram of the outer cover of this utility model;

[0030] Figure 11 This is an isometric structural diagram of the outer cover of this utility model;

[0031] Figure 12 This is a sectional view of the outer cover of this utility model;

[0032] Reference numerals: 1. Outer cap; 2. Inner cap; 3. Inner stopper; 4. Spout; 5. Lower tube assembly; 6. First stop; 7. Annular locking platform; 8. Limiting locking platform; 9. Reinforcing rib; 10. Bottle neck locking plate; 11. Anti-counterfeiting locking block; 12. Locking groove; 13. External thread; 14. Internal thread; 15. Outer cap hook; 16. Inner cap hook; 17. Raised ring; 18. Positioning groove; 19. Positioning ring; 20. Anti-rotation tooth; 21. Limiting tooth; 22. Anti-slip texture. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] To make the objectives, solutions, and advantages of this utility model clearer, the following detailed description of this utility model is provided in conjunction with the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0035] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.

[0036] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0037] The following is in conjunction with the appendix of this utility model. Figures 1-12 The embodiments of this utility model will be described in detail below.

[0038] Example 1:

[0039] In this embodiment, refer to Figure 1 and Figure 2 As shown, a novel anti-pull-out bottle cap is provided, which includes an outer cap 1, an inner cap 2, an inner stopper 3, a spout 4, and a lower tube assembly 5. The inner cap 2 is located inside the outer cap 1; the spout 4 is fitted onto the outside of the inner stopper 3.

[0040] The lower tube assembly 5 is a one-piece molded structure. The top of the inner wall of the lower tube assembly 5 is provided with a first baffle 6, and the outer wall of the spout 4 is provided with an annular locking platform 7. The lower tube assembly 5 and the spout 4 are engaged by the first baffle 6 and the annular locking platform 7.

[0041] Reference Figure 5 , Figure 8 and Figure 9 As shown, the outer side of the spout 4 is provided with an external thread 13, and the inner side of the inner cover 2 is provided with an internal thread 14. The internal thread 14 and the external thread 13 are screwed together, and the number of meshing teeth of the internal thread 14 and the external thread 13 is greater than or equal to 3.

[0042] Reference Figure 7 , Figure 9 , Figure 11 and Figure 12 As shown, the inner wall of the outer cover 1 is provided with at least one outer cover hook 15, and the outer wall of the inner cover 2 is provided with a corresponding inner cover hook 16. The outer cover hook 15 and the inner cover hook 16 are engaged with each other.

[0043] Among them, reference Figure 3 As shown, the lower tube assembly 5 in this embodiment adopts an integrated molding structure, which integrates the original lower tube and lower sleeve into one piece, eliminating the gap between the two separate structures and improving the stability of the overall structure.

[0044] Specifically, when assembling the bottle cap, the inner stopper 3 is inserted into the inner cavity of the spout 4, and the spout 4 is fitted onto the bottle neck. Simultaneously, the lower tube assembly 5 is inserted from the top of the spout 4, securing it to the bottle neck. The annular locking post 7 on the spout 4 with the inner stopper 3 engages with the first stop 6 on the lower cap assembly, thus assembling the lower tube assembly 5 with the spout 4 and the inner stopper 3. Then, the inner cap 2 is screwed onto the spout 4, and the outer cap 1 is fitted onto the inner cap 2, secured by the inner cap hook 16 and the outer cap hook 15, completing the bottle cap assembly.

[0045] In this embodiment, refer to Figure 4 As shown, the inner wall of the lower tube assembly 5 is also provided with a limiting plate 8, which engages with the bottom end of the spout 4 to achieve axial limiting of the spout 4. The limiting plate 8 can form a bidirectional axial limiting with the top first stop 6, which more comprehensively restricts the axial movement of the spout 4, further preventing the spout 4 from axially dislodging from the lower tube assembly 5 and improving the reliability of the connection between the two.

[0046] In this embodiment, refer to Figure 4 As shown, the inner wall of the lower tube assembly 5 is also provided with multiple reinforcing ribs 9, which protrude from the inner wall of the lower tube assembly 5. The shape of the reinforcing ribs 9 can be set according to the shape of the bottle mouth and neck, making the lower tube assembly 5 fit the bottle neck structure more closely while also enhancing the structural strength of the lower tube assembly 5. This embodiment, by providing multiple protruding reinforcing ribs 9 on the inner wall of the lower tube assembly 5, enhances the structural strength and rigidity of the lower tube assembly 5, preventing deformation under external force, ensuring the fitting accuracy and connection stability with components such as the spout 4, indirectly assisting in anti-pull-out performance and improving durability.

[0047] In this embodiment, refer to Figure 5 and Figure 6 As shown, the inner wall of the spout 4 is provided with multiple bottle neck retainers 10, which protrude from the inner wall of the spout 4. Specifically, when the spout 4 is assembled with the bottle neck, the bottle neck retainer 10 is located below the bottle lip of the bottle neck. When the spout 4 is to be pulled out, the bottle neck retainer 10 and the bottle lip will form a locking action, increasing the locking force between the spout 4 and the bottle neck, thereby improving the anti-pull-out performance of the spout 4 relative to the bottle neck.

[0048] In this embodiment, by setting multiple protruding bottle mouth retaining plates 10 on the inner wall of the spout 4, the retaining force between the spout 4 and the bottle mouth can be increased, the connection and fixation between the spout 4 and the bottle mouth can be strengthened, the spout 4 can be prevented from shifting or falling off relative to the bottle mouth, the overall anti-pull-out capability of the bottle cap can be further improved, and the sealing performance can be maintained.

[0049] In this embodiment, refer to Figure 3 and Figure 10 As shown, at least one anti-counterfeiting card block 11 is provided at the top of the lower tube assembly 5, and at least one card slot 12 corresponding to the anti-counterfeiting card block 11 is provided on the outer side of the outer cap 1. By engaging the anti-counterfeiting card block 11 at the top of the lower tube assembly 5 with the card slot 12 on the outer side of the outer cap 1, the bottle cap has an anti-counterfeiting function. Forced disassembly can easily damage the card block or card slot 12, which can identify illegal opening and has an anti-counterfeiting effect.

[0050] Example 2:

[0051] In this embodiment, based on Embodiment 1, to further improve the accuracy of the assembly and positioning of the outer cap 1 and inner cap 2 during the bottle cap assembly process and prevent eccentricity, refer to... Figure 7 , Figure 8 , Figure 9 As shown, in this embodiment, a raised ring 17 is provided at the top of the outer wall of the inner cover 2, and a positioning groove 18 matching the raised ring 17 is provided at the top of the inner wall of the outer cover 1. The raised ring 17 is embedded in the annular positioning groove to realize the positioning of the upper cover and the lower cover.

[0052] When the outer cap 1 is fitted onto the inner cap 2, the protruding ring 17 at the top of the outer wall of the inner cap 2 is embedded in the positioning groove 18 at the top of the inner wall of the outer cap 1 to achieve circumferential and axial positioning of the inner cap 2 and the outer cap 1, preventing eccentricity during assembly of the outer cap 1 and the inner cap 2, ensuring precise docking of the outer cap 1 and the inner cap 2, guaranteeing the effective function of each anti-pull-out structure of the bottle cap, thereby improving the assembly accuracy and structural reliability of the bottle cap.

[0053] In this embodiment, refer to Figure 9As shown, a positioning ring 19 is provided at the top of the inner wall of the inner cap 2. The positioning ring 19 can position the spout 4, and the outer diameter of the positioning ring 19 is adapted to the inner diameter of the opening of the spout 4. When assembling the bottle cap, the inner cap 2 positions the spout 4 through the positioning ring 19. When assembled, the positioning ring 19 fits against the inner wall of the opening of the spout 4, thereby positioning the inner cap 2 and the spout 4 while preventing the contents of the bottle from leaking out through the spout 4.

[0054] In this embodiment, by setting a positioning ring 19 at the top of the inner wall of the inner cap 2, the spout 4 can be positioned axially and radially, ensuring that the relative position of the spout 4 and the inner cap 2 is accurate, making the sealing, snap-fit, and threaded fit structures more stable, providing a precise structural positioning basis for the anti-pull-out performance, and also improving the sealing effect of the bottle cap.

[0055] In this embodiment, refer to Figure 7 , Figure 11 and Figure 12 As shown, an anti-rotation tooth 20 is provided on the outer wall of the inner cover 2, and a limiting tooth 21 that cooperates with the anti-rotation tooth 20 is provided on the inner wall of the outer cover 1. The anti-rotation tooth 20 on the outer wall of the inner cover 2 cooperates with the limiting tooth 21 on the inner wall of the outer cover 1 to restrict the relative rotation of the inner cover 2 and the outer cover 1, thereby improving the structural stability of the outer cover 1 and the inner cover 2.

[0056] In this embodiment, the anti-rotation tooth 20 and the limiting tooth 21 cooperate to avoid the problem of the inner cover 2 and the spout 4 becoming loose due to the rotation of the outer cover 1, and the connection between the outer cover hook 15 and the inner cover hook 16 being misaligned. This ensures the stability of the anti-pull-out structure such as the threaded connection and the hook connection, and reduces the risk of pull-out caused by rotation.

[0057] In this embodiment, refer to Figure 10 As shown, anti-slip texture 22 is provided on the outer wall of the outer cover 1. The anti-slip texture 22 can increase the friction of the outer wall of the outer cover 1, making it easier for the user to apply force when screwing the outer cover 1, avoiding slippage and incomplete screwing. It can ensure the effective cooperation of the inner cover 2 and the spout 4 threaded engagement, the outer cover 1 and the inner cover 2 snap-fit ​​structure, and indirectly ensure the realization of the anti-pull-out performance, improving the ease of use.

[0058] The anti-slip texture 22 can be set as vertical stripes or other shapes, such as grid stripes, frosted stripes, etc. The specific shape can be set according to actual needs, and this embodiment does not impose specific limitations.

[0059] In addition, to further improve the anti-pull-out performance of the outer cap 1 and the inner cap 2, multiple outer cap hooks 15 and inner cap hooks 16 can be set. Through the cooperation of multiple outer cap hooks 15 and inner cap hooks 16, the locking force between the outer cap 1 and the inner cap 2 can be further improved, thereby enhancing the overall anti-pull-out performance of the bottle cap.

[0060] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A novel anti-pull-out bottle cap, characterized in that, It includes an outer cap (1), an inner cap (2), an inner plug (3), a spout (4), and a lower tube assembly (5); wherein the inner cap (2) is located inside the outer cap (1); and the spout (4) is fitted on the outside of the inner plug (3); The lower tube assembly (5) is an integrally formed structure, and the top of the inner wall of the lower tube assembly (5) is provided with a first baffle (6), and the outer wall of the spout (4) is provided with an annular locking platform (7). The lower tube assembly (5) and the spout (4) are connected by the first baffle (6) and the annular locking platform (7). The outer side of the spout (4) is provided with an external thread (13), and the inner side of the inner cap (2) is provided with an internal thread (14). The internal thread (14) is screwed into the external thread (13), and the number of meshing teeth of the internal thread (14) and the external thread (13) is greater than or equal to 3 teeth. The inner wall of the outer cover (1) is provided with at least one outer cover hook (15), and the outer wall of the inner cover (2) is provided with a corresponding inner cover hook (16). The outer cover hook (15) and the inner cover hook (16) are engaged in a corresponding manner.

2. The novel anti-pull-out bottle cap according to claim 1, characterized in that: The inner wall of the lower tube assembly (5) is also provided with a limiting plate (8), which is used to achieve axial limiting by engaging with the bottom end of the spout (4).

3. The novel anti-pull-out bottle cap according to claim 1, characterized in that: The inner wall of the lower tube assembly (5) is also provided with multiple reinforcing ribs (9), which protrude from the inner wall of the lower tube assembly (5).

4. The novel anti-pull-out bottle cap according to claim 1, characterized in that: The inner wall of the spout (4) is provided with a plurality of bottle mouth retainers (10), which protrude from the inner wall of the spout (4).

5. A novel anti-pull-out bottle cap according to claim 1, characterized in that: The top of the lower tube assembly (5) is provided with at least one anti-counterfeiting card block (11), and the outer side of the outer cover (1) is provided with at least one card slot (12) corresponding to the anti-counterfeiting card block (11).

6. A novel anti-pull-out bottle cap according to claim 1, characterized in that: The top of the outer wall of the inner cover (2) is provided with a protruding ring (17), and the top of the inner wall of the outer cover (1) is provided with a positioning groove (18) that matches the protruding ring (17). The protruding ring (17) is embedded in the annular positioning groove to realize the positioning of the upper cover and the lower cover.

7. A novel anti-pull-out bottle cap according to claim 1, characterized in that: The inner cover (2) has a positioning ring (19) at the top of its inner wall.

8. A novel anti-pull-out bottle cap according to claim 1, characterized in that: The outer wall of the inner cover (2) is provided with anti-rotation teeth (20), and the inner wall of the outer cover (1) is provided with limiting teeth (21) that cooperate with the anti-rotation teeth (20).

9. A novel anti-pull-out bottle cap according to claim 1, characterized in that: The outer wall of the outer cover (1) is provided with anti-slip texture (22).

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