High-barrier plastic bottle cap and high-barrier plastic bottle

Abstract

The utility model relates to the technical field of packaging, and discloses a high-barrier plastic bottle cap and a high-barrier plastic bottle, the high-barrier plastic bottle cap comprises a bottle cap and a bottle body installed with the bottle cap, a sealing assembly is arranged between the inner wall of the bottle cap and the bottle body, the sealing assembly comprises a sealing gasket and a sealing clamping groove, the sealing clamping groove is arranged on the inner wall of the top end of the bottle cap, and the sealing gasket is arranged on the sealing clamping groove. The sealing gasket is clamped to the inner wall of the sealing clamping groove, a sealing ring is fixedly connected to the bottom end of the sealing gasket, a first sealing ring is fixedly connected to the bottom end of the sealing ring, and a first sealing circular groove is formed in the inner wall, close to the top end, of the bottle body. According to the bottle cap, the sealing gasket is extruded by the top end of the bottle body to be tightly attached, the first sealing ring is extruded by the inner wall of the bottle body to be clamped into the first sealing circular groove, the second sealing ring and the second sealing circular groove are in triangular design to be deformed and attached, and the sealing performance of the connecting position of the bottle cap and the bottle body is enhanced through a multi-layer sealing structure; and permeation of substances such as gas and water vapor is effectively prevented, and the high-barrier property of the plastic bottle is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, and in particular to a high-barrier plastic bottle cap and a high-barrier plastic bottle. Background Technology

[0002] In the packaging industry, plastic bottles are widely used in food, beverage, and pharmaceutical fields due to their lightweight, low cost, and high plasticity. However, traditional plastic bottles have certain limitations in barrier properties, especially when long-term storage or packaging of sensitive substances such as oxygen and moisture are required, traditional plastic bottles often fail to meet the requirements.

[0003] However, traditional plastic bottle caps and bottles often use a single sealing component, such as a simple sealing ring or thread seal, which results in limited barrier performance. Oxygen, water vapor, and other substances can penetrate into the bottle, causing the contents to become damp, oxidize, and deteriorate, thus shortening the product's shelf life. To address these issues, a high-barrier plastic bottle cap and a high-barrier plastic bottle are proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-barrier plastic bottle cap and a high-barrier plastic bottle, aiming to improve the problem in the prior art that "traditional sealing structures are usually a single sealing ring or threaded seal, resulting in limited barrier performance, allowing substances such as oxygen and water vapor to penetrate into the bottle".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-barrier plastic bottle cap and a high-barrier plastic bottle, comprising a bottle cap and a bottle body installed with the bottle cap, wherein a sealing component is provided between the inner wall of the bottle cap and the bottle body, the sealing component comprising a sealing gasket and a sealing groove, the sealing groove being formed on the inner wall of the top of the bottle cap, the sealing gasket being snapped into the inner wall of the sealing groove, a sealing ring being fixedly connected to the bottom end of the sealing gasket, and a sealing ring being fixedly connected to the bottom end of the sealing ring, a sealing groove being formed on the inner wall of the bottle body near the top, the bottle cap being threadedly installed on the top of the bottle body, and the sealing ring engaging with the sealing groove.

[0006] As a further description of the above technical solution:

[0007] The sealing assembly also includes a second sealing ring and a second sealing groove. A fixing ring is integrally formed and fixedly connected to the outer periphery of the bottle body and its top threaded connection. The top of the fixing ring has a second sealing groove. The second sealing ring is engaged with the second sealing groove. A sealing sleeve is fixedly connected to the top of the second sealing ring. The sealing sleeve is fitted onto the outer wall of the bottle cap near the bottom.

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

[0009] The bottom end of the second sealing ring is set in a triangular shape.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the second sealing groove is set in a triangular shape.

[0012] As a further description of the above technical solution:

[0013] The sealing sleeve is U-shaped with the opening of the U-shape facing inward.

[0014] A high-barrier plastic bottle includes an anti-slip mounting assembly comprising two sets of mounting sleeves and an anti-slip rubber sleeve. The anti-slip rubber sleeve is fitted onto the outer wall of the bottle body and contacts the two sets of mounting sleeves. The two sets of mounting sleeves are respectively fitted onto the top and bottom of the bottle body. A fixing block is fixedly connected to the right side of each set of mounting sleeves, and the two sets of fixing blocks are threaded together by a threaded rod.

[0015] As a further description of the above technical solution:

[0016] An anti-slip knob is fixedly connected to the top of the threaded rod, and the anti-slip knob is rotatably connected to the top of the upper fixed block.

[0017] As a further description of the above technical solution:

[0018] The threaded rod passes through and is rotatably connected to the bottom end of the upper fixed block. The outer wall of the threaded rod is threaded near the bottom end. The threaded rod is threadedly connected to the top end of the lower fixed block.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, the sealing gasket is pressed tightly against the top of the bottle body to form a first seal. At the same time, the sealing ring one is pressed into the sealing groove one by the inner wall of the bottle to form a second seal. In addition, the triangular design of the sealing ring two and the sealing groove two further enhances the sealing performance at the connection between the bottle cap and the bottle body through deformation and fitting, forming a third sealing barrier. The multi-layer sealing structure effectively prevents the penetration of substances such as gas and water vapor, and significantly improves the high barrier performance of the plastic bottle.

[0021] 2. In this utility model, the anti-slip rubber sleeve is fixed by two sets of mounting sleeves. The corrugated shape of the outer wall of the rubber sleeve increases the contact area and friction of the hand, so that the bottle cap can be easily gripped and opened even in wet and slippery environments, solving the problem of traditional plastic bottles being easy to slip. The diameter of the bottom mounting sleeve is larger than that of the bottom of the bottle, which can enhance the stability when placed and prevent tipping. The threaded rod structure not only facilitates the quick fixing of the mounting sleeve, but also makes it convenient to grab and transport in batches. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0023] Figure 2 This is a three-dimensional structural disassembly of the bottle body, anti-slip rubber sleeve, fixing block and threaded rod in this utility model, as well as a cross-sectional view of the mounting sleeve;

[0024] Figure 3 This is a cross-sectional view of the three-dimensional structure of the bottle cap and a schematic diagram showing the disassembly of the three-dimensional structure of the bottle cap and the bottle body in this utility model.

[0025] Figure 4 This is a cross-sectional view of the three-dimensional structure of the bottle cap, sealing sleeve, and sealing ring II in this utility model, as well as a disassembled three-dimensional structure diagram of the bottle cap, sealing gasket, and sealing sleeve.

[0026] Legend:

[0027] 1. Bottle body; 2. Sealing assembly; 3. Anti-slip mounting assembly; 4. Bottle cap; 21. Sealing ring one; 22. Sealing gasket; 23. Sealing groove one; 24. Sealing groove two; 25. Sealing sleeve; 26. Sealing ring two; 27. Sealing slot; 28. Sealing ring; 29. ​​Fixing ring; 31. Mounting sleeve; 32. Anti-slip knob; 33. Threaded rod; 34. Anti-slip rubber sleeve; 35. Fixing block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a high-barrier plastic bottle cap and a high-barrier plastic bottle, comprising a bottle cap 4 and a bottle body 1 installed with the bottle cap 4. A sealing component 2 is provided between the bottle cap 4 and the bottle body 1 to increase the high-barrier effect. The sealing component 2 is provided between the inner wall of the bottle cap 4 and the bottle body 1. The sealing component 2 includes a sealing gasket 22 and a sealing groove 27. The sealing gasket 22 is installed in the sealing groove 27. During installation, the top of the bottle body 1 presses against the sealing gasket 22 to increase the sealing between the sealing gasket 22 and the bottle body 1. The sealing groove 27 is formed on the inner wall of the top of the bottle cap 4. The gasket 22 is snapped into the inner wall of the sealing groove 27. The bottom end of the gasket 22 is fixedly connected to a sealing ring 28 that connects the gasket 22 and the sealing ring 21. The bottom end of the sealing ring 28 is fixedly connected to the sealing ring 21. A sealing groove 23 is provided on the inner wall of the bottle body 1 near the top. During installation, the sealing ring 21 is squeezed by the bottle body 1 and deformed inward to reset and fit into the inner wall of the sealing groove 23, further increasing the sealing performance and high barrier performance between the inner wall of the bottle body 1 and the bottle cap 4. The bottle cap 4 is threaded onto the top of the bottle body 1, and the sealing ring 21 and the sealing groove 23 are snapped into each other.

[0030] Furthermore, the sealing assembly 2 also includes a second sealing ring 26 and a second sealing groove 24. By having the second sealing ring 26 engage with the inner wall of the second sealing groove 24, the sealing performance at the connection between the bottle cap 4 and the bottle body 1 can be increased, further enhancing the high barrier properties. A retaining ring 29, with the second sealing groove 24, is integrally formed and fixedly connected to the outer periphery of the connection between the bottle body 1 and its threaded top. The top of the retaining ring 29 has the second sealing groove 24, and the second sealing ring 26 engages with the second sealing groove 24. The top of the second sealing ring 26 is fixedly connected with… A sealing sleeve 25 is fitted onto the outer wall of the bottom end of the bottle cap 4. The sealing sleeve 25 is fitted onto the outer wall of the bottle cap 4 near the bottom end. The bottom end of the sealing ring 26 is triangular, and the inner wall of the sealing groove 24 is triangular. The triangular shape of the sealing ring 26 presses against the triangular shape of the inner wall of the sealing groove 24, causing them to press and fit together, further increasing the sealing performance and high barrier performance. The sealing sleeve 25 is U-shaped with the opening of the U-shape facing inward, which makes it easy to fit the sealing sleeve 25 onto the outer wall of the bottom end of the bottle cap 4.

[0031] Reference Figure 1 and Figure 2The high-barrier plastic bottle provided by this utility model includes an anti-slip mounting component 3. The anti-slip mounting component 3 includes two sets of mounting sleeves 31 and an anti-slip rubber sleeve 34. The anti-slip rubber sleeve 34 can be limited by the two sets of mounting sleeves 31. The anti-slip rubber sleeve 34 is fitted onto the outer wall of the bottle body 1. The corrugated shape of the outer wall of the anti-slip rubber sleeve 34 can increase the friction and contact area, thereby increasing the anti-slip effect and making it easier to open the bottle cap 4 when hands are wet and slippery. The anti-slip rubber sleeve 34 contacts between the two sets of mounting sleeves 31. The two sets of mounting sleeves 31 are respectively fitted onto the top and bottom of the bottle body 1. A fixing block 35 is fixedly connected to the right side of each set of mounting sleeves 31. The two sets of fixing blocks 35 are threaded together by a threaded rod 33. The anti-slip knob 32 can be rotated to fix the anti-slip rubber sleeve 34. The threaded rod 33 rotates and is threaded onto the lower fixing block 35, allowing two sets of mounting sleeves 31 to be easily installed on the top and bottom of the bottle body 1. The bottom mounting sleeve 31 has a larger diameter than the bottom of the bottle body 1, thus improving stability through support. An anti-slip knob 32 is fixedly connected to the top of the threaded rod 33, and the anti-slip knob 32 is rotatably connected to the top of the upper fixing block 35. The threaded rod 33 passes through and is rotatably connected to the bottom of the upper fixing block 35. The outer wall of the threaded rod 33 is threaded near the bottom. The threaded rod 33 is threaded to the top of the lower fixing block 35. The threaded rod 33 also allows for easy simultaneous handling of multiple threaded rods 33, thus facilitating the handling of multiple bottles 1.

[0032] Working principle: When using the bottle cap 4, screw it onto the top of the bottle body 1. The top of the bottle body 1 compresses the sealing ring 21, causing it to deform inward and then reposition itself into the sealing groove 23 on the inner wall of the bottle body 1, enhancing the seal between the bottle cap 4 and the inside of the bottle body 1. At the same time, the top of the bottle body 1 compresses the sealing gasket 22, causing it to deform under force and fit tightly against the inner wall of the top of the bottle body 1, further enhancing the seal between the inner wall of the bottle body 1 and the bottle cap 4. Meanwhile, the sealing sleeve 25 moves downward with the sealing ring 26. The triangular shape of the sealing ring 26 and the triangular shape of the sealing groove 24 on the fixing ring 29 compress each other, making them fit tightly together and preventing gas and liquid from seeping from the connection between the bottle cap 4 and the bottle body 1, thereby further achieving a high barrier effect.

[0033] By attaching the anti-slip rubber sleeve 34 to the outer wall of the bottle body 1, and attaching two sets of mounting sleeves 31 to the top and bottom of the bottle body 1, the threaded rod 33 is aligned with the threaded hole at the top of the lower fixing block 35. Then, the anti-slip knob 32 is rotated, which drives the threaded rod 33 to rotate. Since the threaded rod 33 is threadedly connected to the lower fixing block 35, as the threaded rod 33 rotates, the two sets of mounting sleeves 31 gradually move closer, thereby firmly installing the anti-slip rubber sleeve 34 on the bottle body 1. The corrugated shape of the outer wall of the anti-slip rubber sleeve 34 increases the friction and contact area with the hand, so that the bottle cap 4 can be opened easily even if the hand is wet and slippery. In addition, the diameter of the mounting sleeve 31 at the bottom is larger than that at the bottom of the bottle body 1, which plays a supporting role and improves the stability when placed. At the same time, the threaded rod 33 allows multiple bottles 1 to be picked up at the same time, which is convenient for handling and storage.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-barrier plastic bottle cap, comprising a cap (4) and a bottle body (1) mounted to the cap (4), characterized in that: A sealing component (2) is provided between the inner wall of the bottle cap (4) and the bottle body (1); The sealing assembly (2) includes a sealing gasket (22) and a sealing groove (27). The sealing groove (27) is opened on the inner wall of the top of the bottle cap (4). The sealing gasket (22) is snapped into the inner wall of the sealing groove (27). A sealing ring (28) is fixedly connected to the bottom end of the sealing gasket (22). A sealing ring (21) is fixedly connected to the bottom end of the sealing ring (28). A sealing groove (23) is opened on the inner wall of the bottle body (1) near the top. The bottle cap (4) is threaded onto the top of the bottle body (1). The sealing ring (21) is snapped into the sealing groove (23).

2. The high-barrier plastic bottle cap according to claim 1, characterized in that: The sealing assembly (2) also includes a second sealing ring (26) and a second sealing groove (24). A fixing ring (29) is integrally formed and fixedly connected to the outer periphery of the bottle body (1) and its top threaded connection. The top of the fixing ring (29) is provided with a second sealing groove (24). The second sealing ring (26) and the second sealing groove (24) are engaged. The top of the second sealing ring (26) is fixedly connected with a sealing sleeve (25). The sealing sleeve (25) is fitted onto the outer wall of the bottle cap (4) near the bottom.

3. The high-barrier plastic bottle cap according to claim 2, characterized in that: The bottom end of the second sealing ring (26) is set in a triangular shape.

4. The high-barrier plastic bottle cap according to claim 2, characterized in that: The inner wall of the sealing groove 2 (24) is set in a triangular shape.

5. The high-barrier plastic bottle cap according to claim 2, characterized in that: The sealing sleeve (25) is configured in a U-shape with the opening of the U-shape facing inward.

6. A high-barrier plastic bottle, comprising the high-barrier plastic bottle cap according to any one of claims 1 to 5, characterized in that: The system includes an anti-slip mounting assembly (3), which includes two sets of mounting sleeves (31) and an anti-slip rubber sleeve (34). The anti-slip rubber sleeve (34) is fitted onto the outer wall of the bottle body (1) and contacts the two sets of mounting sleeves (31). The two sets of mounting sleeves (31) are respectively fitted onto the top and bottom of the bottle body (1). A fixing block (35) is fixedly connected to the right side of each set of mounting sleeves (31). The two sets of fixing blocks (35) are threaded together by a threaded rod (33).

7. The high-barrier plastic bottle according to claim 6, characterized in that: The top end of the threaded rod (33) is fixedly connected to an anti-slip knob (32), which is rotatably connected to the top end of the upper fixed block (35).

8. The high-barrier plastic bottle according to claim 7, characterized in that: The threaded rod (33) passes through and is rotatably connected to the bottom end of the upper fixed block (35). The outer wall of the threaded rod (33) is threaded near the bottom end. The threaded rod (33) is threaded to the top end of the lower fixed block (35).

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