Neck sleeve with double locking position for preventing removal of bottle cap

Abstract

The utility model discloses a neck cover is two buckle positions and prevents the wine bottle cap, including the bottle cap body and the neck cover of sleeve joint on the bottle mouth, the upper and lower two rows annular buckle positions on the neck cover inner wall are provided with main buckle position and prevent the buckle position of pulling out respectively, and the bottle mouth outer wall is correspondingly provided with the first buckle platform of cooperation with main buckle position, and the bottle mouth outer wall is correspondingly provided with the second buckle platform of cooperation with prevent the buckle position of pulling out, the buckle close face of second buckle platform is provided with the inclined plane to the downward inclination, and the inclination direction of inclined plane is identical with the buckle close angle of prevent the buckle position of pulling out, and the junction of neck cover and bottle cap body is equipped with the fracture groove, the utility model discloses the combination of main buckle position and prevent the buckle position of pulling out, not only realizes normal opening function, but also increases prevent the core locking structure of pulling out, and prevent the cooperation of buckle position and bottle mouth inclined plane, makes the neck cover root fracture when the non - normal cap, prevents the silk line of false and produces the burr - like fracture of irrecoverable simultaneously, provides direct evidence for true and false verification, effectively prevents the counterfeiting and secondary filling.

Description

Technical Field

[0001] This utility model relates to the technical field of product packaging, specifically to a double-locking anti-pull-out bottle cap. Background Technology

[0002] Currently, most anti-counterfeiting bottle caps for alcoholic beverages on the market use a single neck sleeve fastening structure to secure the cap. These caps typically consist of a cap body and a neck sleeve that fits over the outside of the bottle opening. The inner wall of the neck sleeve has a ring-shaped fastening ring, and the outer wall of the bottle opening has a corresponding single fastening platform. When the cap is fastened, the fastening ring and the platform engage to form an anti-opening barrier.

[0003] The structure has a significant defect: when the single buckle structure is heated, the neck sleeve material softens and undergoes elastic deformation, causing the buckle to expand radially and detach from the buckle platform; by using a special pry tool to insert into the buckle gap, the buckle can be forced to undergo plastic deformation, releasing the buckling constraint; all of the above operations can achieve the complete removal of the bottle cap without damaging the integrity of the bottle cap's appearance, thus rendering the packaging ineffective in preventing counterfeiting. Utility Model Content

[0004] The purpose of this utility model is to provide a double-lock anti-pull bottle cap with a neck collar to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a neck sleeve is a double-buckle anti-pull bottle cap, including a bottle cap body and a neck sleeve fitted onto the bottle mouth. The inner wall of the neck sleeve has two rows of annular buckles, one main buckle and one anti-pull buckle, respectively. The outer wall of the bottle mouth is provided with a first buckle platform that cooperates with the main buckle, and the outer wall of the bottle mouth is provided with a second buckle platform that cooperates with the anti-pull buckle.

[0006] The second buckle has a downward-sloping bevel, the direction of which is consistent with the buckling angle of the anti-pull buckle, and a fracture groove is provided at the connection between the neck sleeve and the bottle cap body.

[0007] Preferably, the anti-pull buckle is located below the main buckle and close to the end of the bottle mouth, and the anti-pull buckle is a continuous annular rib.

[0008] Preferably, the fastening surface of the main fastening position is an upwardly inclined guide surface, which forms a detachable fastening with the first fastening platform.

[0009] Preferably, the engagement angle of the anti-pull-out buckle matches the angle of the inclined surface.

[0010] Preferably, the fracture groove is a U-shaped groove, located at the root of the neck sleeve above the anti-pull-out buckle.

[0011] Preferably, the neck sleeve is an integral structure, with the main buckle, anti-pull buckle, and fracture groove formed by injection molding in one piece.

[0012] Preferably, the neck sleeve is a split structure, including an upper neck sleeve and a lower neck sleeve, and the fracture groove is provided at the connection between the upper neck sleeve and the bottle cap body.

[0013] Preferably, the fracture groove is embedded with an anti-counterfeiting thread, and the two ends of the anti-counterfeiting thread are fixed to the bottle cap body and the neck sleeve, respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model, through the combination of the main buckle and the anti-pull buckle, not only achieves the normal opening function, but also adds an anti-pull core locking structure. The cooperation between the anti-pull buckle and the bevel of the bottle mouth causes the neck sleeve to break at the root when the cap is pulled off abnormally. At the same time, the anti-counterfeiting thread is torn and produces an irreversible burr-like fracture, providing direct evidence for authenticity verification and effectively preventing counterfeiting and refilling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the bottle cap body of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the double-buckle anti-pull bottle cap neck sleeve of this utility model.

[0018] Figure 3 This is a schematic diagram of the inclined plane of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the anti-counterfeiting thread of this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the first and second fastening platforms of this utility model.

[0021] Figure 6 This is a schematic diagram of the fracture groove of this utility model.

[0022] In the figure: bottle cap body 1; bottle mouth 2; first buckle platform 21; second buckle platform 22; inclined surface 23; neck sleeve 3; main buckle position 31; anti-pull buckle position 32; upper neck sleeve 33; lower neck sleeve 34; fracture groove 4; anti-counterfeiting thread 41. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 6This utility model provides a technical solution: a neck sleeve is a double-buckle anti-pull bottle cap, including a bottle cap body 1 and a neck sleeve 3 that is sleeved on the bottle mouth 2. The bottle cap body 1 is a sealing cap that covers the top of the bottle mouth 2.

[0025] The inner wall of the neck sleeve 3 has two rows of annular buckles, one above the other, with a main buckle 31 and an anti-pull buckle 32. The outer wall of the bottle mouth 2 has a first buckle platform 21 that cooperates with the main buckle 31, and a second buckle platform 22 that cooperates with the anti-pull buckle 32. The main buckle 31 and the first buckle platform 21 of the bottle mouth 2 form a detachable fastening, realizing the normal opening function. The anti-pull buckle 32 serves as the core anti-pull locking structure. The second buckle platform 22 is inclined in the same direction as the anti-pull buckle 32, forming a self-locking trigger surface.

[0026] The second buckle 22 has a downward-sloping bevel 23 on its fastening surface. The bevel 23 is inclined in the same direction as the fastening angle of the anti-pull buckle 32. A fracture groove 4 is provided at the connection between the neck sleeve 3 and the bottle cap body 1. The fracture groove 4 is a U-shaped groove located at the root of the neck sleeve above the anti-pull buckle 32. The fracture groove 4 is a stress concentration point and controls the fracture position. An anti-counterfeiting thread 41 is embedded in the fracture groove 4. The two ends of the anti-counterfeiting thread 41 are fixed to the bottle cap body 1 and the neck sleeve 3, respectively. After the anti-counterfeiting thread 41 breaks, it produces fiber burrs, providing evidence of authenticity verification.

[0027] The anti-pull buckle 32 is located below the main buckle 31 and close to the end of the bottle mouth. The anti-pull buckle 32 is a continuous annular rib. The buckling surface of the main buckle 31 is an upwardly inclined guide surface, which forms a detachable buckle with the first buckle platform 21. The buckling angle of the anti-pull buckle 32 matches the angle of the inclined surface 23. The neck sleeve 3 is an integral structure. The main buckle 31, the anti-pull buckle 32 and the fracture groove 4 are formed by injection molding in one piece.

[0028] When the axial cap-pulling force is applied to the bottle cap, the anti-pull buckle 32 is squeezed by the inclined surface 23, generating a radially inward constraint force, causing the anti-pull buckle 32 to lose its radial elastic deformation ability, thus achieving mechanical self-locking with the bottle mouth. At the same time, the fracture groove 4 undergoes irreversible fracture.

[0029] In the normal open state, when the bottle cap is unscrewed, the main latch 31 slides off along the vertical surface of the first latch platform 21, the anti-pull latch 32 does not contact the inclined surface 23, and the fracture groove 4 is not subjected to force.

[0030] In an abnormal cap-pulling state, when an axial cap-pulling force is applied to the cap, the anti-pull buckle 32 and the inclined surface 23 come into contact with each other. Because the inclination angles of the two are matched, the inclined surface 23 decomposes the axial force into a radial inward component, forcing the anti-pull buckle 32 to contract toward the center of the bottle mouth, losing the radial elastic deformation space and achieving mechanical self-locking. At the same time, the cap-pulling force is transmitted to the fracture groove 4 through the neck sleeve 3. The stress in the groove exceeds the yield strength of the material, causing the root of the neck sleeve to break. The anti-counterfeiting thread 41 is simultaneously torn off and produces an irreversible burr-like fracture.

[0031] Furthermore, the neck sleeve 3 can also be a split structure, including an upper neck sleeve 33 and a lower neck sleeve 34. The fracture groove 4 is provided at the connection between the upper neck sleeve 33 and the bottle cap body 1. When the cap is not properly removed, the lower neck sleeve 34 can be replaced separately, reducing after-sales costs.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A neck collar for a double-lock anti-pull bottle cap, comprising a bottle cap body (1) and a neck collar (3) fitted onto the bottle mouth (2), characterized in that: The neck sleeve (3) has two rows of annular buckles on the inner wall, with a main buckle (31) and an anti-pull buckle (32) respectively. The outer wall of the bottle mouth (2) is provided with a first buckle platform (21) that cooperates with the main buckle (31), and the outer wall of the bottle mouth (2) is provided with a second buckle platform (22) that cooperates with the anti-pull buckle (32). The second buckle (22) has a downward inclined surface (23) on its fastening surface. The inclined direction of the inclined surface (23) is consistent with the fastening angle of the anti-pull buckle (32). A fracture groove (4) is provided at the connection between the neck sleeve (3) and the bottle cap body (1).

2. A neck sleeve for a double detent tamper-evident wine bottle closure according to claim 1, characterised in that: The anti-pull buckle (32) is located below the main buckle (31) and close to the end of the bottle mouth. The anti-pull buckle (32) is a continuous annular rib.

3. A neck-sleeve for a double-catch tamper-evident wine bottle cap according to claim 1, wherein: The main buckle (31) has an upwardly inclined guide surface that forms a detachable buckle with the first buckle platform (21).

4. A neck sleeve for a double detent tamper-evident bottle cap according to claim 1, wherein: The engagement angle of the anti-pull-out buckle (32) matches the angle of the inclined surface (23).

5. A neck-sleeve for a double-catch tamper-evident wine bottle cap according to claim 1, wherein: The fracture groove (4) is a U-shaped groove, located at the root of the neck sleeve above the anti-pull buckle (32).

6. A neck sleeve for a double detent tamper-evident bottle cap according to claim 1, wherein: The neck sleeve (3) is an integral structure, and the main buckle (31), the anti-pull buckle (32) and the fracture groove (4) are formed by injection molding in one piece.

7. A neck sleeve for a double detent tamper-evident bottle cap according to claim 1, wherein: The neck sleeve (3) is a split structure, including an upper neck sleeve (33) and a lower neck sleeve (34), and a fracture groove (4) is provided at the connection between the upper neck sleeve (33) and the bottle cap body (1).

8. The neck collar as described in claim 1, which is a double-buckle anti-pull bottle cap, is characterized in that: The fracture groove (4) is embedded with an anti-counterfeiting thread (41), and the two ends of the anti-counterfeiting thread (41) are fixed to the bottle cap body (1) and the neck sleeve (3) respectively.

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