A bottle cap connection structure

Abstract

This invention provides a bottle cap connection structure, including a bottle cap with an inner cavity and a container head with an outer peripheral engagement surface. The outer peripheral engagement surface of the container head protrudes outwards to form an annular retaining strip. The inner wall of the bottle cap is recessed inwards to form an annular retaining groove for accommodating the annular retaining strip. At least two stop protrusions are spaced apart around the same circumference on the inner wall of the annular retaining groove. When the bottle cap and the container head move relative to each other axially, the stop protrusions and the annular retaining strip cross over and engage with each other through the elastic deformation of the stop protrusions or the bottle cap. This invention provides phased, clear tactile feedback, replacing the original sliding friction, greatly reducing wear, and ensuring the durability of the tactile feel throughout the product's lifespan. Secondly, it forms an effective sealing barrier, blocking the direct path of evaporation of the contents, solving the problem of content leakage, and better preserving the contents.

Description

Technical Field

[0001] This utility model relates to the technical field of bottle cap connection structures, and in particular to a bottle cap connection structure. Background Technology

[0002] Delicate containers such as perfume bottles and cosmetic bottles are usually equipped with caps to seal and protect their contents. To enhance the user experience, the caps need to provide a clear and comfortable tactile feedback during opening and closing.

[0003] In the prior art, a common practice is to set multiple vertically extending ribs on the inside of the bottle cap, and to generate a tactile feel through the large-area compression and friction between the ribs and the outer wall of the nozzle.

[0004] However, the above solution has obvious flaws:

[0005] First, the tactile feel achieved by continuous friction will quickly diminish due to component wear, leading to loosening of the conveyor and affecting product lifespan. Additionally, the debris generated by wear may contaminate the contents.

[0006] Secondly, the gaps between the vertical ribs can create evaporation channels, causing the liquid or vapor inside the bottle to escape, resulting in waste of contents and a decline in preservation performance.

[0007] Therefore, there is an urgent need for a new type of bottle cap connection structure that can provide a lasting, clear feel while effectively improving sealing performance and preventing contents from escaping.

[0008] In view of this, the inventor has specifically designed a bottle cap connection structure, which leads to this invention. Utility Model Content

[0009] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bottle cap connection structure that not only provides a clear and lasting tactile feel for opening and closing the bottle cap, but also enhances the sealing effect and prevents the contents from evaporating.

[0010] To solve the above problems, the technical solution of this utility model is as follows:

[0011] A bottle cap connection structure includes a bottle cap with an inner cavity and a container head with an outer peripheral mating surface, wherein:

[0012] The outer peripheral joint surface of the container head protrudes outward around its periphery to form an annular retaining strip;

[0013] The inner wall of the bottle cap is recessed inward to form an annular groove for accommodating the annular clip.

[0014] At least two stop protrusions are provided at intervals around the same circumference on the inner side wall of the annular slot;

[0015] When the bottle cap and the container head move relative to each other axially, the stop protrusion and the annular locking strip can pass over each other and engage through the elastic deformation of the stop protrusion or the bottle cap.

[0016] Preferably, the annular groove extends from the opening end of the inner cavity of the bottle cap toward its inner side.

[0017] Preferably, the number of the stop protrusions is three, and they are evenly distributed along the same circumference of the inner sidewall of the annular groove.

[0018] Preferably, the stop protrusion has guide slopes on both sides along the axial movement direction of the bottle cap and the container head to guide the annular retaining strip.

[0019] Preferably, the stop protrusion has a hemispherical or arc-shaped protrusion structure.

[0020] Preferably, the annular strip and the inner wall of the annular groove are fitted together to form a sealing structure.

[0021] Preferably, it also includes a flexible contact element fitted around the outer periphery of the bottle cap.

[0022] Preferably, the outer peripheral wall of the bottle cap is provided with a plurality of first anti-rotation ribs distributed around it in a circumferential direction to restrict the rotation of the flexible contact.

[0023] Preferably, the bottle cap is provided with an upper stop and a lower stop at its top and bottom along its axial direction, respectively, and the upper stop and the lower stop together with the outer peripheral wall of the bottle cap form an annular mounting groove for installing the flexible contact.

[0024] Preferably, the lower stop portion is in the shape of a flared mouth that gradually widens downwards, and it is provided with a plurality of second anti-rotation ribs on the side facing the mounting groove to help limit the rotation of the flexible contact member.

[0025] The beneficial effects of this utility model are as follows:

[0026] First, this invention provides phased and clear tactile feedback through the "overlap-engage" interaction between the stop protrusion and the annular locking strip. This mechanism, based on elastic deformation rather than sliding friction, greatly reduces wear and ensures the durability of the tactile feel throughout the entire product lifecycle.

[0027] Secondly, the combination of the annular card strip and the annular card groove in this invention forms an effective sealing barrier, blocking the direct path of evaporation of the contents, solving the problem of leakage caused by vertical gaps in the prior art, and better preserving the contents.

[0028] Furthermore, this invention enhances the product's grip and aesthetics through the addition of flexible contact components. By incorporating anti-rotation ribs and a special mounting groove structure, the flexible contact components are ensured to be securely installed and will not rotate or shift relative to the bottle cap, maintaining the product's integrity and high-quality appearance.

[0029] In addition, in this invention, the guide slope on the stop protrusion makes the opening and closing process of the cover smoother and less strenuous, improving the user experience. Attached Figure Description

[0030] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0031] in:

[0032] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0033] Figure 2 This is an exploded view of the layout structure of Embodiment 1 of this utility model;

[0034] Figure 3 This is an exploded and cross-sectional structural diagram of Embodiment 1 of this utility model;

[0035] Figure 4 This is a three-dimensional structural diagram of the bottle cap in Embodiment 1 of this utility model;

[0036] Figure 5 This is a schematic cross-sectional view of the middle part of the bottle cap in Embodiment 1 of this utility model;

[0037] Figure 6 This is a cross-sectional structural diagram of Embodiment 2 of this utility model.

[0038] Label Explanation:

[0039] 100. Bottle cap; 110. Inner cavity; 120. Annular groove; 130. Upper stop; 140. Lower stop; 150. Mounting groove; 160. First anti-rotation rib; 170. Second anti-rotation rib; 200. Container head; 210. Outer peripheral mating surface; 220. Annular retaining strip; 300. Flexible contact element; 310. Limiting hole; 320. Guide surface; 400. Stop protrusion; 410. Guide slope. Detailed Implementation

[0040] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Example 1

[0041] Please see Figures 1 to 5 This is a bottle cap connection structure, which is the preferred embodiment of the present utility model. It mainly includes a bottle cap 100, a container head 200 and an optional flexible contact 300.

[0042] The outer periphery of the container head 200 (the container head 200 should be interpreted broadly to refer to any container outlet component that needs to cooperate with the bottle cap 100, specifically a perfume spray nozzle in this embodiment) forms an outer peripheral engagement surface 210 attached to its cylindrical surface, and a ring of outwardly protruding annular retaining strip 220 is provided at a suitable position on the outer peripheral engagement surface 210.

[0043] The bottle cap 100 has an inner cavity 110 with a bottom opening. The wall of the inner cavity 110 is recessed inward to form a ring-shaped groove 120.

[0044] When the bottle cap 100 is closed, the annular retaining strip 220 of the container head 200 is precisely accommodated in the annular retaining groove 120 of the bottle cap 100.

[0045] The core improvement of this embodiment is that three evenly distributed stop protrusions 400 are arranged around the same circumference on the inner sidewall of the annular groove 120.

[0046] The three stop protrusions 400 are preferably hemispherical or arc-shaped structures. In this embodiment, they are specifically ellipsoidal structures, with one half of each protrusion integrally joined to the side wall of the annular groove 120, thereby forming an arc-shaped spherical surface resembling an eyeball or a rugby ball on the side wall of the annular groove 120.

[0047] Therefore, arc-shaped guide slopes 410 are formed on both sides of the stop protrusion 400 along the movement axis of the bottle cap 100, which smoothly guide the contact and elastic deformation process between the stop protrusion 400 and the annular retaining strip 220.

[0048] During the process of closing or opening the cap, when the user applies axial force, the cap 100 and the container head 200 move relative to each other. The annular retaining strip 220 will come into contact with the stop protrusion 400. Under the continued application of force, whether the stop protrusion 400 itself undergoes elastic deformation, or the cap 100 (which is usually made of plastics with a certain degree of elasticity such as PP, PE, ABS, etc.) undergoes local elastic deformation, the annular retaining strip 220 and the stop protrusion 400 can "pass over" each other. At the moment of passing over, the user will feel a distinct "click" or a phased change in resistance, providing clear tactile feedback.

[0049] By designing the position where the bottom of the bottle cap 100 contacts the bottle body, the stop protrusion 400 is positioned appropriately within the annular groove 120 (ideally stopping after passing the annular retaining strip 220). Therefore, once the annular retaining strip 220 and the stop protrusion 400 have passed each other, the locking and positioning are achieved.

[0050] In this embodiment, the cross-sectional shape of the annular strip 220 is semi-circular, thereby forming a complete annular structure with an arc-shaped surface on the outer peripheral joint surface 210. At the same time, the far end of the annular strip 220 away from the container head 200 is fitted with the inner wall of the annular groove 120 with a clearance, forming an effective labyrinth-like sealing structure, which significantly reduces the evaporation of liquids such as perfume.

[0051] To further enhance the user experience, a flexible contact element 300 is also fitted around the outer periphery of the bottle cap 100. This contact element can be made of soft materials such as silicone or TPE to provide a comfortable feel and anti-slip effect. In this embodiment, a limiting hole 310 is formed through the center of the flexible contact element 300 along the axial direction, the lower edge of the flexible contact element 300 is recessed inward to form a guide surface 320 extending to the center of the limiting hole 310, and an arc-shaped surface is formed on the outer side of the flexible contact element 300.

[0052] To ensure that the flexible contact 300 does not rotate during use, several first anti-rotation ribs 160 are provided around the outer peripheral wall of the bottle cap 100.

[0053] Specifically, the top and bottom of the bottle cap 100 are respectively provided with an upper stop 130 and a lower stop 140, which together form a mounting groove 150 to limit the axial displacement of the flexible contact 300. In this embodiment, the mounting groove 150 is generally in the shape of a downwardly expanding frustum, and the shape of the limiting hole 310 is adapted to the mounting groove 150.

[0054] The lower stop 140 is designed in a downwardly flared shape, which is aesthetically pleasing and easy to install. A second anti-rotation rib 170 is added to the annular surface on its upper side, which works in conjunction with the first anti-rotation rib 160 to completely prevent the flexible contact 300 from slipping or rotating.

[0055] In this embodiment, the cross-section of the mounting groove 150 is divided into four equal parts. At two of the dividing points that are radially opposite to each other along the mounting groove 150, first anti-rotation ribs 160 are symmetrically arranged on the circumferential surfaces facing the left and right sides. With these dividing points as boundaries, the first anti-rotation ribs 160 on the left and right sides extend in opposite directions, thereby forming four limiting areas with different orientations and composed of the first anti-rotation ribs 160 on the circumferential surface of the entire mounting groove 150. After the limiting hole 310 is fitted into the mounting groove 150, the inner wall of the limiting hole 310 will press against all the first anti-rotation ribs 160. When the user wants to operate the entire bottle cap 100, he only needs to operate the flexible contact 300. The inner first anti-rotation ribs 160 will prevent relative rotation between the flexible contact 300 and the bottle cap 100 body from all directions, thereby greatly improving the user experience. Example 2

[0056] Please see Figures 1 to 5 This is a bottle cap connection structure as Embodiment 2 of the present invention. The difference from Embodiment 1 is that the three stop protrusions 400 are preferably in the shape of an isosceles trapezoid with cross-section. Therefore, planar guide slopes 410 are formed on both sides of the stop protrusions 400 along the movement axis of the bottle cap 100, which smoothly guides the contact and elastic deformation process between the stop protrusions 400 and the annular retaining strip 220.

[0057] The beneficial effects of this embodiment are as follows:

[0058] The bottle cap 100 connection structure provided by this utility model effectively solves a series of problems caused by reliance on friction and the existence of assembly gaps in the prior art. Its beneficial effects are mainly reflected in the following three aspects:

[0059] 1. It fundamentally solves the contradiction between the durability of the feel and the wear and tear of the parts.

[0060] The technical problem solved: The method of achieving tactile feel by relying on large-area squeezing and friction in the background technology will aggravate the wear of the nozzle surface, resulting in a rapid decline in tactile feel.

[0061] The beneficial effects of this invention are as follows: the "elastic over-engagement" mechanism of the stop protrusion 400 and the annular locking strip 220 replaces the traditional "sliding friction" mechanism. This process only produces slight elastic deformation at the moment they pass each other, rather than continuous friction, greatly reducing wear on the contact surfaces. This ensures that the clear, stepped "click" feel remains stable and durable throughout the entire product lifecycle, improving product durability and the consistency of the user experience.

[0062] 2. Significantly improved sealing performance, effectively preventing contents from escaping.

[0063] The technical problem solved: In the background technology, there are gaps between the vertically distributed limiting strips that cannot be sealed, forming channels for the escape of volatile substances and causing waste of contents.

[0064] The beneficial effects of this invention are as follows: the engagement of the surrounding annular strip 220 and the annular groove 120 forms a continuous and complete 360-degree sealing barrier. This structure fundamentally blocks the longitudinal escape path of the contents (liquid or vapor) directly to the outside of the bottle cap 100, greatly reducing the evaporation and waste of the contents, which is crucial for the preservation of expensive and volatile liquids such as perfumes.

[0065] 3. Improved both the user experience and the overall aesthetic appeal of the product.

[0066] The technical problems addressed include: implicit needs such as the discomfort caused by friction and the easy displacement of external decorative parts, which affects the aesthetics.

[0067] The beneficial effects of this utility model are:

[0068] Smoother operation: The guide slope 410 on the stop protrusion 400 makes the opening and closing of the cover effortless and smooth, and finally the clear locking feeling confirms that the cover is in place, resulting in a better operating experience.

[0069] More reliable appearance: By adding anti-rotation ribs and a special mounting groove 150 structure, the external flexible contact parts 300 (such as silicone sleeves) are ensured to be firmly installed and will not rotate or fall off, maintaining the high-end and exquisite integrated appearance of the product and enhancing its sense of quality.

[0070] In summary, through structural innovation, this utility model simultaneously achieves durable feel, efficient sealing, and high-end experience, with overall performance significantly superior to existing technologies.

[0071] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A bottle cap connection structure, characterized in that, Includes a bottle cap (100) having an inner cavity (110) and a container head (200) having an outer peripheral mating surface (210), wherein: The outer peripheral joint surface (210) of the container head (200) protrudes outward around its periphery to form an annular retaining strip (220); The inner wall of the bottle cap (100) is recessed inward to form an annular groove (120) for accommodating the annular clip (220); At least two stop protrusions (400) are provided at intervals around the same circumference on the inner side wall of the annular groove (120); When the bottle cap (100) and the container head (200) move relative to each other axially, the stop protrusion (400) and the annular retaining strip (220) pass over each other and engage through the elastic deformation of the stop protrusion (400) or the bottle cap (100).

2. The bottle cap connection structure according to claim 1, characterized in that, The annular groove (120) extends from the opening end of the inner cavity (110) of the bottle cap (100) toward its inner side.

3. The bottle cap connection structure according to claim 1, characterized in that, The number of the stop protrusions (400) is three, and they are evenly distributed along the same circumference of the inner sidewall of the annular groove (120).

4. The bottle cap connection structure according to claim 1, characterized in that, The stop protrusion (400) has guide slopes (410) on both sides along the axial movement direction of the bottle cap (100) and the container head (200) for guiding the annular clip (220).

5. The bottle cap connection structure according to claim 1, characterized in that, The stop protrusion (400) has a hemispherical or arc-shaped protrusion structure.

6. The bottle cap connection structure according to claim 1, characterized in that, The annular strip (220) and the inner wall of the annular groove (120) are fitted together to form a sealing structure.

7. The bottle cap connection structure according to claim 1, characterized in that, It also includes a flexible contact element (300) fitted around the outer periphery of the bottle cap (100).

8. The bottle cap connection structure according to claim 7, characterized in that, The outer peripheral wall of the bottle cap (100) is provided with a plurality of first anti-rotation ribs (160) distributed around it in a circumferential direction to restrict the rotation of the flexible contact (300).

9. A bottle cap connecting structure according to claim 7, characterized in that, The bottle cap (100) is provided with an upper stop (130) and a lower stop (140) at its top and bottom along its axial direction, respectively. The upper stop (130), the lower stop (140) and the outer peripheral wall of the bottle cap (100) together form an annular mounting groove (150) for installing the flexible contact (300).

10. A bottle cap connecting structure according to claim 9, characterized in that, The lower stop (140) is in the shape of a flared mouth that gradually expands downward, and a plurality of second anti-rotation ribs (170) are provided on the side facing the mounting groove (150) to help limit the rotation of the flexible contact (300).

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