Beverage bottle having high barrier property

Abstract

A beverage bottle having high barrier property, comprising a bottle cap (100) and a bottle body (200) having a mouth at the top, wherein the bottle cap comprises a top cap (110) used for sealing said mouth of the bottle body, and a side cap (120) that is formed by the edge of the top cap extending in the axial direction and is detachably connected to the bottle body; the outer wall of the bottle body is outwardly protrudingly provided with a sealing protruding ring (210) in the radial direction; the end of the side cap facing the bottle body is provided with a sealing body (130) used for elastically abutting against and sealing with the sealing protruding ring; the outer wall of the bottle body is provided with a first barrier film (220); the outer wall of the bottle cap is provided with a second barrier film (140). A beverage is poured into the bottle body via said mouth of the bottle body, the bottle cap is detachably connected to the bottle body by means of the side cap, then said mouth of the bottle body is sealed by means of the top cap, and the sealing body elastically abuts against and performs sealing with the sealing protruding ring on the side cap, so that a machining error caused by low machining precision is eliminated by means of elastic deformation, thereby reducing a gap between the bottle cap and the bottle body to the maximum extent and even preventing the gap, improving the outer sealing performance between the bottle cap and the bottle body, preventing penetration of external bacteria, and ensuring the drinking safety; moreover, the beverage bottle is covered in all directions by means of the first barrier film and the second barrier film, so that the barrier property of the beverage bottle is improved to the maximum extent, the application range is wide, and the practicability is high.

Description

High barrier beverage bottles Technical Field

[0001] The present invention relates to the technical field of beverage packaging, in particular to a high-barrier beverage bottle. Background Art

[0002] Most beverage bottles are plastic bottles made of high-density polyethylene (HDPCTE) through extrusion blow molding. Compared with glass bottles, plastic bottles have the advantages of being light, easy to carry, low in production cost, and not easy to damage. Therefore, they are widely used in the beverage packaging industry.

[0003] However, with the continuous development of social economy, high-quality but relatively expensive beverages continue to emerge, which puts higher requirements on the performance of plastic bottles, especially for carbonated beverages with high barrier properties. However, although existing plastic bottles are low in price, they have poor barrier properties such as oxygen and water barrier, which is not conducive to long-term storage of beverages, and the external sealing between the bottle cap and the bottle mouth is poor.

[0004] For example, Chinese utility model patent CN206297902U discloses a beverage bottle with a breaking ring connected to the bottom of the bottle cap, which is stuck on the outer peripheral surface of the bottle mouth. The breaking ring prevents the beverage bottle from opening abnormally during use. However, due to the low processing precision of the beverage bottle, there are tiny gaps between the breaking ring, the bottle cap and the bottle mouth. External bacteria or viruses can easily penetrate between the bottle cap and the bottle mouth through these gaps and adhere to the outer wall of the bottle mouth. When people drink beverages, they usually come into contact with the outer wall of the bottle mouth, posing a safety risk.

[0005] Summary of the Invention

[0006] The invention provides a high-barrier beverage bottle to solve the technical problems of poor barrier properties and external sealing properties of existing beverage bottles.

[0007] According to one aspect of the present invention, a high-barrier beverage bottle is provided, comprising a bottle cap and a bottle body with a top opening, the bottle cap comprising a top cover for sealing the top opening of the bottle body and a side cover whose edge extends in an axial direction and is detachably connected to the bottle body, a sealing convex ring is provided on the outer wall of the bottle body protruding radially outward, a sealing body for elastically abutting and sealing with the sealing convex ring is provided on the end of the side cover facing the bottle body, a first barrier film is provided on the outer wall of the bottle body, and a second barrier film is provided on the outer wall of the bottle cap.

[0008] As a further improvement of the above technical solution:

[0009] Furthermore, the sealing body and the side cover are integrally injection-molded.

[0010] Furthermore, a stabilizing groove is concavely provided on the bottom of the bottle body along the axial direction.

[0011] Furthermore, an internal thread structure is provided on the inner wall of the side cover, and an external thread structure threadably connected to the internal thread structure is provided on the outer wall of the bottle body.

[0012] Furthermore, a first sealing ring and a second sealing ring are protruding from the inner wall of the top cover, and the first sealing ring and the second sealing ring are arranged at intervals. The inner wall of the first sealing ring is sealed against the outer wall of the bottle body, and the outer wall of the second sealing ring is sealed against the inner wall of the bottle body.

[0013] Furthermore, a sealing protrusion is provided on the inner wall of the top cover between the first sealing ring and the second sealing ring for sealing against the top wall of the bottle body.

[0014] Furthermore, the corner between the end of the second sealing ring facing the bottle body and the inner wall of the second sealing ring is chamfered.

[0015] Furthermore, a sealing ring is arranged on the inner wall of the top cover and corresponds to the top wall of the bottle body.

[0016] Furthermore, the radial length of the sealing ring is greater than the radial length of the top wall of the bottle body.

[0017] Furthermore, the sealing ring and the top cover are integrally injection-molded.

[0018] The present invention has the following beneficial effects:

[0019] The high-barrier beverage bottle of the present invention, beverage is poured into the bottle body through the top opening of the bottle body, the bottle cap is detachably connected to the bottle body through the side cover, and then the top opening of the bottle body is sealed by the top cover, and the sealing body and the sealing convex ring on the side cover are elastically abutted and sealed, and the processing deviation caused by low processing precision is eliminated through elastic deformation, and the gap between the bottle cap and the bottle body is minimized or even prevented, thereby improving the external sealing between the bottle cap and the bottle body, preventing the infiltration of external bacteria, and ensuring drinking safety. At the same time, the first barrier film and the second barrier film are used to achieve all-round coverage of the beverage bottle, thereby improving the barrier property of the beverage bottle to the greatest extent. Compared with the existing technology, the external sealing and barrier property between the bottle body and the bottle cap are good, the scope of application is wide, the practicality is strong, and it is suitable for wide promotion and application.

[0020] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0022] FIG1 is a schematic structural diagram of a high barrier beverage bottle according to a preferred embodiment of the present invention;

[0023] FIG2 is a schematic cross-sectional view of a high barrier beverage bottle according to a preferred embodiment of the present invention;

[0024] FIG3 is a schematic cross-sectional view of a high barrier beverage bottle according to a preferred embodiment of the present invention.

[0025] Legend: 100, bottle cap; 110, top cover; 111, first sealing ring; 112, second sealing ring; 113, sealing protrusion; 114, sealing ring; 120, side cover; 121, internal thread structure; 130, sealing body; 140, second barrier membrane; 200, bottle body; 210, sealing protrusion; 220, first barrier membrane; 230, stabilizing groove; 240, external thread structure. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0027] Figure 1 is a schematic structural diagram of a high barrier beverage bottle according to a preferred embodiment of the present invention; Figure 2 is a schematic cross-sectional diagram of a high barrier beverage bottle according to a preferred embodiment of the present invention; and Figure 3 is a schematic cross-sectional diagram of a high barrier beverage bottle according to a preferred embodiment of the present invention.

[0028] As shown in Figures 1 and 2, the high-barrier beverage bottle of this embodiment includes a bottle cap 100 and a bottle body 200 with a top opening. The bottle cap 100 includes a top cover 110 for sealing the top opening of the bottle body 200 and a side cover 120 whose edge extends along the axial direction and is detachably connected to the bottle body 200. A sealing convex ring 210 is provided on the outer wall of the bottle body 200 and a sealing body 130 is provided on the end of the side cover 120 facing the bottle body 200 for elastically abutting and sealing with the sealing convex ring 210. A first barrier film 220 is provided on the outer wall of the bottle body 200 and a second barrier film 140 is provided on the outer wall of the bottle cap 100. The bottle cap 100 is detachably connected to the bottle body 200 through the side cover 120, and the top opening of the bottle body 200 is sealed by the top cover 110, and the sealing body 130 is elastically abutted and sealed with the sealing convex ring 210 on the side cover 120. The processing deviation caused by low processing precision is eliminated through elastic deformation, and the gap between the bottle cap 100 and the bottle body 200 is minimized or even prevented, thereby improving the external sealing between the bottle cap 100 and the bottle body 200, preventing the infiltration of external bacteria, and ensuring drinking safety. At the same time, the first barrier film 220 and the second barrier film 140 are used to fully cover the beverage bottle, thereby improving the barrier property of the beverage bottle to the greatest extent. Compared with the prior art, the external sealing and barrier property between the bottle body 200 and the bottle cap 100 are good, and the scope of application is wide, the practicability is strong, and it is suitable for wide promotion and application. It should be understood that the external plating process for a beverage bottle is as follows: first, the bottle cap 100 is externally plated to form a second barrier film 140 on the outer wall of the bottle cap 100, then the bottle cap 100 is assembled onto the bottle body 200, and then the beverage bottle is externally plated to form a first barrier film 220 on the outer wall of the bottle body 200. At this time, the outer walls of the bottle body 200 and the inner wall of the side cover 120 corresponding to the outer wall thereof are not plated with the first barrier film 220 because they are blocked by the side cover 120. If a gap still exists between the side cover 120 and the bottle body 200, external gas may penetrate into the beverage bottle through the outer walls of the bottle body 200 and the side cover 120 corresponding to the outer wall thereof, or gas in the beverage bottle may penetrate out of the beverage bottle through the outer walls of the bottle body 200 and the side cover 120 corresponding to the outer wall thereof, thereby reducing the quality of the beverage. It should be understood that the external plating process for the bottle body 200 or the cap is well known to those skilled in the art and will not be described in detail here. Optionally, the sealing body 130 is arranged in a ring shape and is made of elastic materials such as rubber.

[0029] As shown in Figures 1 to 3, in this embodiment, the sealing body 130 and the side cover 120 are integrally injection molded. It should be understood that the sealing body 130 and the side cover 120 are integrally injection molded using a double-material injection molding process. It should be understood that the double-material injection molding process is a well-known technology for those skilled in the art and will not be described in detail here. Specifically, the sealing body 130 and the side cover 120 are integrally injection molded to prevent a gap from appearing between the sealing body 130 and the side cover 120, thereby ensuring the sealing between the sealing body 130 and the side cover 120. Optionally, in another embodiment, the sealing body 130 and the side cover 120 are bonded.

[0030] As shown in Figures 1-3, in this embodiment, a stabilizing groove 230 is formed along the axial direction of the bottom of the bottle body 200. Specifically, the stabilizing groove 230 is formed along the axial direction of the bottom of the bottle body 200 so that the radial cross-section of the bottom of the bottle body 200 is triangular, thereby improving the stability of the beverage bottle when placed vertically.

[0031] As shown in Figures 1 to 3, in this embodiment, the inner wall of the side cover 120 is provided with an internal thread structure 121, and the outer wall of the bottle body 200 is provided with an external thread structure 240 threadedly connected to the internal thread structure 121. Specifically, the bottle cap 100 is installed on the bottle body 200 by threading the internal thread structure 121 and the external thread structure 240.

[0032] As shown in FIG2 , in this embodiment, a first sealing ring 111 and a second sealing ring 112 are convexly provided on the inner wall of the top cover 110. The first sealing ring 111 and the second sealing ring 112 are arranged at intervals. The inner wall of the first sealing ring 111 is sealed against the outer wall of the bottle body 200, and the outer wall of the second sealing ring 112 is sealed against the inner wall of the bottle body 200. Specifically, the first sealing ring 111, the second sealing ring 112 and the inner wall of the top cover 110 enclose a plug-in cavity to be plugged in with the top of the bottle body 200, and the inner wall of the first sealing ring 111 is sealed against the outer wall of the bottle body 200, and the outer wall of the second sealing ring 112 is sealed against the inner wall of the bottle body 200, thereby improving the internal sealing between the bottle body 200 and the bottle cap 100.

[0033] As shown in Figure 2, in this embodiment, a sealing protrusion 113 is provided on the inner wall of the top cover 110 between the first sealing ring 111 and the second sealing ring 112 for sealing against the top wall of the bottle body 200. Specifically, the sealing protrusion 113 seals against the top wall of the bottle body 200, thereby achieving a three-sided seal, further improving the internal sealing between the bottle body 200 and the bottle cap 100.

[0034] As shown in Figure 2, in this embodiment, the corner between the end of the second sealing ring 112 facing the bottle body 200 and the inner wall of the second sealing ring 112 is chamfered. Specifically, the chamfer guides the bottle body 200 when inserted into the insertion cavity, thereby reducing the difficulty of assembly.

[0035] As shown in Figure 3, in this embodiment, a sealing ring 114 is disposed on the inner wall of the top cover 110, corresponding to the top wall of the bottle body 200. Specifically, after the side cover 120 is connected to the bottle body 200, the sealing ring 114 elastically abuts and seals against the top wall of the bottle body 200, thereby improving the internal seal between the bottle body 200 and the bottle cap 100. Optionally, the sealing ring 114 is made of an elastic material such as rubber.

[0036] As shown in FIG3 , in this embodiment, the radial length of the sealing ring 114 is greater than the radial length of the top wall of the bottle body 200. Specifically, after the sealing ring 114 and the top wall of the bottle body 200 elastically abut, the sealing ring 114 elastically deforms. Moreover, because the radial length of the sealing ring 114 is greater than the radial length of the top wall of the bottle body 200, a semi-wrapped seal is achieved on the top wall of the bottle body 200, further improving the internal sealing between the bottle body 200 and the bottle cap 100.

[0037] As shown in Figure 3, in this embodiment, the sealing ring 114 and the top cover 110 are integrally injection molded. Specifically, by integrally injection molding the sealing ring 114 and the top cover 110, the sealing ring 114 is prevented from being lost, the number of components to be assembled is reduced, and the assembly difficulty of the beverage bottle is reduced. It should be understood that beverage bottles are mass-produced products, so any reduction in assembly difficulty will reduce the overall assembly difficulty.

[0038] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A high-barrier beverage bottle, comprising a bottle cap (100) and a bottle body (200) with a top opening, wherein the bottle cap (100) comprises a top cover (110) for sealing the top opening of the bottle body (200) and a side cover (120) formed by extending the edge of the top cover (110) in an axial direction and detachably connected to the bottle body (200), characterized in that: A sealing convex ring (210) is provided on the outer wall of the bottle body (200) and protrudes radially outward. A sealing body (130) is provided on the end of the side cover (120) facing the bottle body (200) and is used for elastically contacting and sealing with the sealing convex ring (210). A first barrier film (220) is provided on the outer wall of the bottle body (200), and a second barrier film (140) is provided on the outer wall of the bottle cap (100).

2. The high barrier beverage bottle according to claim 1, characterized in that: The sealing body (130) and the side cover (120) are integrally injection-molded.

3. The high barrier beverage bottle according to claim 1, characterized in that: The bottom of the bottle body (200) is provided with a stabilizing groove (230) along the axial direction.

4. The high barrier beverage bottle according to claim 1, characterized in that: An internal thread structure (121) is provided on the inner wall of the side cover (120), and an external thread structure (240) threadably connected to the internal thread structure (121) is provided on the outer wall of the bottle body (200).

5. The high barrier beverage bottle according to claim 1, characterized in that: A first sealing ring (111) and a second sealing ring (112) are convexly provided on the inner wall of the top cover (110), the first sealing ring (111) and the second sealing ring (112) are arranged at intervals, the inner wall of the first sealing ring (111) and the outer wall of the bottle body (200) are fitted and sealed, and the outer wall of the second sealing ring (112) and the inner wall of the bottle body (200) are fitted and sealed.

6. The high barrier beverage bottle according to claim 5, characterized in that: A sealing protrusion (113) is provided on the inner wall of the top cover (110) between the first sealing ring (111) and the second sealing ring (112) for sealing against the top wall of the bottle body (200).

7. The high barrier beverage bottle according to claim 5, characterized in that: The corner between the end of the second sealing ring (112) facing the bottle body (200) and the inner wall of the second sealing ring (112) is chamfered.

8. The high barrier beverage bottle according to claim 1, characterized in that: A sealing ring (114) is arranged on the inner wall of the top cover (110) and corresponds to the top wall of the bottle body (200).

9. The high barrier beverage bottle according to claim 8, characterized in that: The radial length of the sealing ring (114) is greater than the radial length of the top wall of the bottle body (200).

10. The high barrier beverage bottle according to claim 8, characterized in that: The sealing ring (114) and the top cover (110) are integrally injection-molded.

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