A transparent, tamper-evident, anti-rotation bottle cap with an in-mold decoration

Abstract

The application discloses a transparent anti-pulling and anti-rotation bottle cap with in-band decoration, which comprises a lower cap, a base and an outer cover. The base is arranged in the lower cap and is buckled with the lower cap. The outer cover is connected with the lower cap through the base. The outer cover is rotationally matched with the base through at least one connecting piece. Before the base is buckled with the lower cap, the connecting piece is separated from the base or the outer cover when the outer cover rotates relative to the base. At least one limiting piece is arranged between the lower cap, the base and the outer cover. The limiting piece is used for limiting the relative rotation between the base and the outer cover after the base is buckled with the lower cap. The components of the bottle cap are assembled and matched through bosses, guide sliding grooves and anti-rotation ribs to achieve the anti-pulling function of the bottle cap. The pulling force is transmitted through the bosses and the guide sliding grooves, the longitudinal pulling force can be dispersed, the anti-pulling strength of the bottle cap can be greatly improved, the buckling structure between the components of the bottle cap is reduced, the mold structure is greatly simplified, and the mold manufacturing cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of bottle cap technology, and in particular to a transparent bottle cap with an inner decorative strip that is pull-out resistant and prevents rotation. Background Technology

[0002] Bottle caps are a crucial component of food and beverage packaging and are the first point of contact consumers have with the product. They maintain the airtightness of the contents, prevent tampering, and ensure safety. Therefore, they are widely used in bottled products, making bottle caps a key product in bottled packaging and an upstream industry for the food, beverage, wine, chemical, and pharmaceutical industries.

[0003] Existing bottle caps (such as patents with publication numbers CN112758506A and CN113353442A) have components that are fastened together. Such bottle caps have complex molding molds, high manufacturing costs, and low tensile strength. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a transparent bottle cap with internal decoration that is resistant to pull-out and anti-rotation. The various components of the bottle cap are assembled and cooperated through bosses, guide grooves, and anti-rotation ribs to achieve the function of preventing pull-out. The pull-out force is transmitted through the bosses and guide grooves, which can disperse the longitudinal pull-out force and greatly improve the tensile strength of the bottle cap. At the same time, by reducing the fastening structure between the various components of the bottle cap, the mold structure is greatly simplified and the mold manufacturing cost is reduced.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A transparent bottle cap with an inner decorative trim that is pull-out resistant and anti-rotation includes a lower cap, a base, and an outer cover. The base is disposed inside the lower cap and is fastened to the lower cap. The outer cover is connected to the lower cap through the base, and the outer cover is rotatably engaged with the base through at least one connector.

[0007] Before the base and the lower cover are fastened together, when the outer cover and the base rotate relative to each other, the connecting piece separates from the base or the outer cover;

[0008] At least one limiting member is provided between the lower cover and the base and the outer cover. The limiting member is used to restrict the relative rotation of the base and the outer cover after the base and the lower cover are fastened together.

[0009] The connector is used to limit the axial displacement of the base and the outer cover after the base and the lower cover are fastened together.

[0010] Furthermore, the connector includes a guide groove and a boss. The guide groove is disposed on the outer cover. The first end of the guide groove is closed, and the second end of the guide groove extends to the bottom of the outer cover to form an opening.

[0011] The boss is mounted on the base and slides in conjunction with the guide groove.

[0012] Furthermore, the guide groove includes a guide portion and a limiting portion, the opening is located at the end of the guide portion away from the limiting portion, and the limiting portion is arranged laterally.

[0013] Furthermore, the base includes a first connecting part, a second connecting part, and a third connecting part whose diameters increase sequentially from top to bottom. The boss is disposed on the second connecting part, and the outer diameter of the third connecting part is adapted to the inner diameter of the lower cover.

[0014] Furthermore, the outer cover includes a first outer shell and a second outer shell with diameters decreasing sequentially from top to bottom. The first outer shell is disposed outside the lower cover, and the second outer shell is disposed inside the lower cover. The guide groove is disposed on the second outer shell, and the second outer shell fits into the second connecting part.

[0015] Furthermore, the inner wall of the lower cover is provided with at least one anti-rotation groove along its axial direction;

[0016] The base is provided with a first anti-rotation rib that cooperates with the anti-rotation groove, and the outer cover is provided with a second anti-rotation rib that cooperates with the anti-rotation groove.

[0017] Furthermore, the first anti-rotation rib is disposed on the outer wall of the third connecting part, and the second anti-rotation rib is disposed on the outer wall of the second outer shell; the second anti-rotation rib is located above the first anti-rotation rib.

[0018] Furthermore, a mounting component is fixedly provided inside the lower cover, and a first fastening platform is provided on the top of the mounting component;

[0019] The base has an arc-shaped ear plate at its bottom, and the inner wall of the arc-shaped ear plate has a second fastening platform that engages with the first fastening platform.

[0020] Furthermore, the lower part of the mounting component is adapted to the inner plug for connecting the inner plug.

[0021] Furthermore, both the outer cover and the base are made of transparent material, and the upper end of the base is provided with a decorative element, which is located inside the outer cover.

[0022] The beneficial effects of this invention are:

[0023] 1) The components of the bottle cap of the present invention are assembled and cooperated with each other through bosses, guide grooves and anti-rotation ribs to achieve the function of anti-pull-out of the bottle cap. The pull-out force is transmitted through the bosses and guide grooves, which can disperse the longitudinal pull-out force and greatly improve the tensile strength of the bottle cap.

[0024] 2) At the same time, by reducing the interlocking structure between the various components of the bottle cap, the mold structure is greatly simplified and the mold manufacturing cost is reduced. Attached Figure Description

[0025] Figure 1 This is a perspective view of the pull-out and anti-rotation bottle cap with transparent inner decoration in an embodiment of the present invention;

[0026] Figure 2 Top view of a pull-out and anti-rotation bottle cap with a transparent inner decorative strip;

[0027] Figure 3 for Figure 2 Sectional view along line AA;

[0028] Figure 4 for Figure 3 Sectional view along the BB direction;

[0029] In the diagram, 1. Lower cover; 2. Base; 3. Outer cover; 4. Connector; 5. Limiting component; 6. Guide groove; 7. Boss; 8. Guide part; 9. Limiting part; 10. First connecting part; 11. Second connecting part; 12. Third connecting part; 13. First outer shell; 14. Second outer shell; 15. Anti-rotation groove; 16. First anti-rotation rib; 17. Second anti-rotation rib; 18. Mounting component; 19. First fastening platform; 20. Second fastening platform; 21. Inner plug; 22. Decorative component; 23. Arc-shaped ear plate. Detailed Implementation

[0030] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] See Figures 1-4 The present invention provides a technical solution:

[0032] Example:

[0033] like Figures 1-4 As shown, a transparent bottle cap with an inner decorative strip that is resistant to pull-out and prevents rotation includes a lower cap 1, a base 2, and an outer cover 3. The base 2 is disposed inside the lower cap 1 and is fastened to the lower cap 1. The outer cover 3 is connected to the lower cap 1 through the base 2, and the outer cover 3 is rotatably engaged with the base 2 through at least one connector 4.

[0034] Before the base 2 and the lower cover 1 are fastened together, when the outer cover 3 rotates relative to the base 2, the connecting piece 4 separates from the base 2 or the outer cover 3.

[0035] At least one limiting member 5 is provided between the lower cover 1, the base 2, and the outer cover 3. The limiting member 5 is used to restrict the relative rotation of the base 2 and the outer cover 3 after the base 2 and the lower cover 1 are fastened together.

[0036] The connector 4 is used to restrict the axial displacement of the base 2 and the outer cover 3 after the base 2 and the lower cover 1 are fastened together.

[0037] The connector 4 includes a guide groove 6 and a boss 7. The guide groove 6 is disposed on the outer cover 3. The first end of the guide groove 6 is closed, and the second end of the guide groove 6 extends to the bottom of the outer cover 3 to form an opening.

[0038] The boss 7 is mounted on the base 2 and slides in cooperation with the guide groove 6.

[0039] like Figure 1 As shown, the guide groove 6 includes a guide part 8 and a limiting part 9. The opening is located at the end of the guide part 8 away from the limiting part 9, and the limiting part 9 is arranged laterally.

[0040] The base 2 includes a first connecting part 10, a second connecting part 11 and a third connecting part 12 whose diameters increase sequentially from top to bottom. The boss 7 is disposed on the second connecting part 11, and the outer diameter of the third connecting part 12 is adapted to the inner diameter of the lower cover 1.

[0041] The outer cover 3 includes a first outer shell 13 and a second outer shell 14 whose diameters decrease sequentially from top to bottom. The first outer shell 13 is disposed outside the lower cover 1, and the second outer shell 14 is disposed inside the lower cover 1. The guide groove 6 is disposed on the second outer shell 14, and the second outer shell 14 is fitted outside the second connecting part 11.

[0042] The inner wall of the lower cover 1 is provided with at least one anti-rotation groove 15 along its axial direction;

[0043] The base 2 is provided with a first anti-rotation rib 16 that cooperates with the anti-rotation groove, and the outer cover 3 is provided with a second anti-rotation rib 17 that cooperates with the anti-rotation groove.

[0044] The first anti-rotation rib 16 is disposed on the outer wall of the third connecting part 12, and the second anti-rotation rib 17 is disposed on the outer wall of the second outer shell 14; the second anti-rotation rib 17 is located above the first anti-rotation rib 16.

[0045] The lower cover 1 is fixedly provided with an installation component 18, and the top of the installation component 18 is provided with a first fastening platform 19;

[0046] The base 2 has an arc-shaped ear plate 23 at its bottom, and the inner wall of the arc-shaped ear plate 23 has a second fastening platform 20 that engages with the first fastening platform 19. Specifically: 1. The mounting member 18 extends along the same circumference as the first fastening platform 19, excluding the portion of the first fastening platform 19, to connect with the inner wall of the lower cover 1; 2. Two first fastening platforms 19 are provided, and two connection portions between the mounting member 18 and the lower cover 1 are provided, with the first fastening platforms 19 spaced apart from the connection portions between the mounting member 18 and the lower cover 1.

[0047] The lower part of the mounting member 18 is adapted to the inner plug 21 for connecting the inner plug 21. The inner plug 21 may be, but is not limited to, an interference fit with the mounting member 18.

[0048] Both the outer cover 3 and the base 2 are made of transparent material. A decorative element 22 is provided on the upper end of the base 2, and the decorative element 22 is located inside the outer cover 3. The decorative element 22 is disposed on the first connecting portion 10.

[0049] Working principle: During assembly, the outer cover 3 is first placed on the base 2, and the boss 7 extends into the guide groove 6 through the opening; then the outer cover 3 is rotated. As the outer cover 3 rotates, the boss 7 enters the end of the guide groove 6 along with it. At this time, the boss 7, together with the upper and lower side walls of the guide groove 6, axially limits the outer cover 3 and the base 2. When the boss 7 enters the end of the guide groove 6, the first anti-rotation rib 16 and the second anti-rotation rib 17 are aligned vertically.

[0050] Then, the outer cover 3 and the base 2 are assembled onto the lower cover 1. During this process, the first anti-rotation rib 16 and the second anti-rotation rib 17 cooperate with the anti-rotation groove 15, and the first latching platform 19 cooperates with the second latching platform 20 to complete the bottle cap assembly.

[0051] When the bottle cap is in use, the engagement of the first latching platform 19 and the second latching platform 20, along with the cooperation of the guide groove 6 and the protrusion 7, prevents the base 2 and the outer cover 3 from separating from the lower cap 1 when pulled by external force. If forcibly pulled, the structure of the first latching platform 19, the second latching platform 20, and / or the guide groove 6 and the protrusion 7 will be damaged, causing the bottle cap to be damaged and irreparable, thus preventing external force from pulling it open and facilitating counterfeiting.

[0052] Meanwhile, the anti-rotation groove 15, the first anti-rotation rib 16 and the second anti-rotation rib 17 can prevent the base 2 and the outer cover 3 from rotating relative to each other, thereby ensuring that the boss 7 is always within the limiting part 9 of the guide groove 6, and ensuring that the guide groove 6 always limits the vertical displacement of the boss 7.

[0053] The simple mold structure reduces the mold manufacturing cost and enhances the aesthetics of the transparent outer cover 3 and transparent base 2 while meeting the functional requirements. It can disperse the longitudinal pulling force, thus greatly improving the tensile strength of the bottle cap. It almost achieves a self-locking and irreversible assembly function. If violently pulled, the cap can be destroyed and cannot be restored.

[0054] The bottle cap components of this invention are assembled and cooperated with bosses, guide grooves and anti-rotation ribs to achieve the function of anti-pull-out of the bottle cap. The bosses and guide grooves realize the transmission of pull-out force, which can disperse the longitudinal pull-out force and significantly improve the tensile strength of the bottle cap. At the same time, by reducing the fastening structure between the bottle cap components, the mold structure is greatly simplified and the mold manufacturing cost is reduced.

[0055] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A transparent bottle cap with an inner decorative trim that resists pull-out and prevents rotation, characterized in that: It includes a lower cover, a base, and an outer cover. The base is disposed inside the lower cover and is fastened to the lower cover. The outer cover is connected to the lower cover through the base. The outer cover is rotatably engaged with the base through at least one connector. Before the base and the lower cover are fastened together, when the outer cover and the base rotate relative to each other, the connecting piece separates from the base or the outer cover; At least one limiting member is provided between the lower cover and the base and the outer cover. The limiting member is used to restrict the relative rotation of the base and the outer cover after the base and the lower cover are fastened together. The connector is used to limit the axial displacement of the base and the outer cover after the base and the lower cover are fastened together; The connector includes a guide groove and a boss. The guide groove is disposed on the outer cover. The first end of the guide groove is closed, and the second end of the guide groove extends to the bottom of the outer cover to form an opening. The boss is mounted on the base and slides in cooperation with the guide groove. The guide groove includes a guide part and a limiting part, the opening is located at the end of the guide part away from the limiting part, and the limiting part is arranged laterally; The base includes a first connecting part, a second connecting part, and a third connecting part whose diameters increase sequentially from top to bottom. The boss is disposed on the second connecting part, and the outer diameter of the third connecting part is adapted to the inner diameter of the lower cover. The outer cover includes a first outer shell and a second outer shell with diameters decreasing from top to bottom. The first outer shell is disposed outside the lower cover, and the second outer shell is disposed inside the lower cover. The guide groove is disposed on the second outer shell, and the second outer shell is fitted to the outside of the second connecting part. The inner wall of the lower cover is provided with at least one anti-rotation groove along its axial direction; The base is provided with a first anti-rotation rib that cooperates with the anti-rotation groove, and the outer cover is provided with a second anti-rotation rib that cooperates with the anti-rotation groove. The first anti-rotation rib is disposed on the outer wall of the third connecting part, and the second anti-rotation rib is disposed on the outer wall of the second outer shell; the second anti-rotation rib is located above the first anti-rotation rib. The lower cover is fixedly provided with an installation component, and the top of the installation component is provided with a first fastening platform; The base has an arc-shaped ear plate at its bottom, and the inner wall of the arc-shaped ear plate has a second fastening platform that engages with the first fastening platform.

2. The anti-pull-out and anti-rotation bottle cap with transparent inner decoration according to claim 1, characterized in that: The lower part of the mounting component is adapted to the inner plug for connecting the inner plug.

3. The anti-pull-out and anti-rotation bottle cap with transparent inner decoration according to claim 1 or 2, characterized in that: Both the outer cover and the base are made of transparent material, and the upper end of the base is provided with a decorative piece, which is located inside the outer cover.

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