A tear-off type aluminum-plastic combined cover

Abstract

This utility model discloses a tear-off aluminum-plastic composite cap, including a plastic inner cap and an aluminum outer cap. The plastic inner cap can interlock with the inner wall of the bottle mouth, and aluminum foil is fixedly adhered to the lower end of the plastic inner cap. After the bottle is installed, the lower inner wall of the aluminum outer cap is provided with an integrally formed retaining ring, which can interlock with the outer wall of the bottle mouth. After the bottle is sealed, the inner wall of the aluminum outer cap is provided with internal threads that fit with the outer surface of the bottle mouth. A tear opening is provided on the surface of the aluminum outer cap, and a backward-bent tear-off part is fixedly connected to the edge of the tear opening. The tear-off part is bent backward. By providing the backward-bent tear-off part, it can be easily pulled. By pulling the tear-off part, the aluminum outer cap will break along the tear opening, thus facilitating the removal of the aluminum outer cap. After the aluminum outer cap is removed, its original shape structure will be destroyed, thereby achieving a good anti-counterfeiting effect.

Description

Technical Field

[0001] This utility model relates to the field of bottle cap technology, specifically a tear-off aluminum-plastic combination cap. Background Technology

[0002] Combination caps, consisting of an inner cap and an outer cap, are a commonly used technology in beverage packaging. Currently, in combination caps on the market, the inner cap is generally inserted directly into the inside of the bottle opening, while the outer cap is directly threaded onto the outside of the bottle opening.

[0003] However, in actual use, after the inner and outer caps are opened, they can be reinstalled at the bottle mouth, resulting in poor anti-counterfeiting effect of the entire cap. Therefore, we proposed a tear-off aluminum-plastic combination cap. Utility Model Content

[0004] The purpose of this utility model is to provide a tear-off aluminum-plastic composite cover to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tear-off aluminum-plastic composite cap, comprising a plastic inner cap and an aluminum outer cap. The plastic inner cap can be interlocked with the inner wall of the bottle opening, and aluminum foil is fixedly adhered to the lower end of the plastic inner cap. After the upper bottle is sealed, the lower end of the aluminum outer cap forms an integrally formed retaining ring, which can be interlocked with the outer wall of the bottle opening. After the upper bottle is sealed, the aluminum outer cap fits with the outer surface of the bottle opening to form an internal thread. A tear opening is provided on the surface of the aluminum outer cap, and a tear-off part is fixedly connected to the edge of the tear opening.

[0006] Preferably, the tearing portion is bent backward.

[0007] Preferably, the plastic inner cover is a tubular structure with openings at both ends.

[0008] Preferably, the upper outer side of the plastic inner cover is provided with a slot, and the upper end of the plastic inner cover is fitted with a top edge plate that matches the slot.

[0009] Preferably, the upper outer surface of the aluminum shell cover is provided with an inwardly protruding annular ridge, and the top edge plate is engaged between the annular ridge and the inner top of the aluminum shell cover.

[0010] Preferably, the top of the aluminum shell cover is printed with a first QR code.

[0011] Preferably, a second QR code is printed on the outer surface of the edge-sealing top plate.

[0012] Beneficial effects

[0013] This utility model provides a tear-off aluminum-plastic composite cover, which has the following advantages:

[0014] 1. This tear-off aluminum-plastic composite cover features a backward-bending tear section that allows for easy pulling. Pulling the tear section breaks the aluminum outer cover along the tear, making it easy to remove. Furthermore, removing the aluminum outer cover disrupts the original shape and structure, thus providing a good anti-counterfeiting effect.

[0015] 2. This tear-off aluminum-plastic combination cap, by setting a plastic inner cap and aluminum foil, utilizes the interlocking of the plastic inner cap with the inner wall of the bottle mouth to achieve a preliminary seal. After the plastic inner cap is closed, the air pressure inside the bottle will squeeze the aluminum foil, causing the aluminum foil to indent upwards, and the plastic inner cap will expand outwards, thus allowing the plastic inner cap to better fit the inner wall of the bottle mouth, thereby enhancing the sealing effect. Moreover, the aluminum outer cap is threaded to the outer surface of the bottle mouth, further improving the sealing effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front section structure of a tear-off aluminum-plastic composite cover proposed in this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the aluminum shell outer cover of a tear-off aluminum-plastic composite cover proposed in this utility model.

[0018] Figure 3 This is a cross-sectional structural diagram of the plastic inner cover of a tear-off aluminum-plastic composite cover proposed in this utility model.

[0019] Figure 4 This is a bottom view schematic diagram of the aluminum shell outer cover of a tear-off aluminum-plastic composite cover proposed in this utility model.

[0020] In the picture: 1. Plastic inner cover; 2. Aluminum outer cover; 3. Aluminum foil; 4. Snap ring; 5. Internal thread; 6. Tear opening; 7. Tear section; 8. Edge finishing plate; 9. Circular rib; 10. First QR code; 11. Second QR code. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4This utility model provides a technical solution: a tear-off aluminum-plastic combination cap, including a plastic inner cap 1 and an aluminum outer cap 2. The plastic inner cap 1 can be interlocked with the inner wall of the bottle mouth, and aluminum foil 3 is fixedly adhered to the lower end of the plastic inner cap 1. After the upper bottle is sealed, the lower end of the aluminum outer cap 2 forms an integrally formed retaining ring 4. The retaining ring 4 is formed by extrusion and can be interlocked with the outer wall of the bottle mouth. After the upper bottle is sealed, the aluminum outer cap 2 fits with the outer surface of the bottle mouth to form an internal thread 5. A tear 6 is opened on the surface of the aluminum outer cap 2, and a tear-off part 7 is fixedly connected to the edge of the tear 6. The tear-off part 7 is bent backward. This design can effectively prevent the tear-off part 7 from scratching the hand.

[0023] The inner plastic cap 1 is a tubular structure with openings at both ends. By setting the inner plastic cap 1 and the aluminum foil 3, the inner plastic cap 1 interlocks with the inner wall of the bottle mouth, which can achieve a preliminary seal. After the inner plastic cap 1 is closed, the air pressure inside the bottle will squeeze the aluminum foil 3, causing the aluminum foil 3 to indent upwards, and the inner plastic cap 1 will expand outwards. This allows the inner plastic cap 1 to better fit the inner wall of the bottle mouth, thereby enhancing the sealing effect. Furthermore, by setting the internal thread 5, the outer aluminum shell cap 2 is threadedly connected to the outer surface of the bottle mouth, further improving the sealing effect.

[0024] A slot is provided on the outer side of the upper end of the plastic inner cover 1. A top plate 8 that fits into the slot is snapped onto the upper end of the plastic inner cover 1. By setting the top plate 8, liquid can be prevented from flowing out from the inside of the plastic inner cover 1.

[0025] The upper outer surface of the aluminum shell cover 2 is provided with an inwardly protruding annular rib 9, and the edge-retaining top plate 8 is engaged between the annular rib 9 and the inner top of the aluminum shell cover 2. By providing the annular rib 9, the edge-retaining top plate 8 can be limited.

[0026] The top of the aluminum shell cover 2 is printed with a first QR code 10. Scanning the first QR code 10 can display information about the manufacturer and the product.

[0027] The outer surface of the top edge plate 8 is printed with a second QR code 11. Scanning the second QR code 11 can display information to verify authenticity, thus serving as an anti-counterfeiting measure.

[0028] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 tear-off aluminum-plastic composite cover, comprising a plastic inner cover (1) and an aluminum outer cover (2), characterized in that: The plastic inner cap (1) can be snapped into the inner wall of the bottle mouth, and aluminum foil (3) is fixedly glued to the lower end of the plastic inner cap (1). The lower end of the aluminum shell outer cap (2) forms an integrally formed retaining ring (4) after the upper bottle is sealed. The retaining ring (4) can be snapped into the outer wall of the bottle mouth, and the aluminum shell outer cap (2) fits into the outer surface of the bottle mouth to form an internal thread (5) after the upper bottle is sealed. A tear opening (6) is provided on the surface of the aluminum shell outer cap (2), and a tearing part (7) is fixedly connected to the edge of the tear opening (6).

2. The tear-off aluminum-plastic composite cover according to claim 1, characterized in that: The tear section (7) is bent backward.

3. The tear-off aluminum-plastic composite cover according to claim 1, characterized in that: The plastic inner cover (1) is a tubular structure with openings at both ends.

4. The tear-off aluminum-plastic composite cover according to claim 1, characterized in that: The upper outer side of the plastic inner cover (1) is provided with a slot, and the upper end of the plastic inner cover (1) is fitted with a top plate (8) that matches the slot.

5. A tear-off aluminum-plastic composite cover according to claim 4, characterized in that: The upper outer surface of the aluminum shell cover (2) is provided with an inwardly protruding annular rib (9), and the top edge plate (8) is snapped between the annular rib (9) and the inner top of the aluminum shell cover (2).

6. The tear-off aluminum-plastic composite cover according to claim 1, characterized in that: The top of the aluminum shell cover (2) is printed with a first QR code (10).

7. A tear-off aluminum-plastic composite cover according to claim 4, characterized in that: The outer surface of the top edge plate (8) is printed with a second QR code (11).

Images