A tamper-evident bottle cap for an aluminium cylinder and a container bottle

By designing an aluminum tube anti-pull-out bottle cap, utilizing the negative ring notch and the deformation and fracture of the connecting rib, combined with the rigid engagement of the claw and the slot and the folded edge wrapping structure, the problem of poor anti-counterfeiting effect in the existing technology is solved, achieving a highly efficient anti-counterfeiting effect and structural stability.

CN224349465UActive Publication Date: 2026-06-12LUZHOU LAOJIAO CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LUZHOU LAOJIAO CO LTD
Filing Date
2025-05-15
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

In existing technologies, bottle caps have poor anti-counterfeiting effects and can be easily pulled out by criminals using equipment, making it difficult to effectively prevent counterfeit wine from being bottled.

Method used

Design an aluminum tube anti-pull-out bottle cap, including an inner plug, an inner sleeve, an inner cap, and an aluminum tube. The inner sleeve is composed of a negative ring and a main body along the pull-out direction. The negative ring has a first notch. The connecting rib deforms or breaks under force. The aluminum tube undergoes irreversible deformation during the pull-out process. Combined with the rigid engagement of the claw and the slot and the folded edge wrapping structure, the mechanical resistance and destructive linkage are enhanced.

Benefits of technology

It significantly improves the anti-counterfeiting effect, increases the difficulty of removing the cap and the presence of irreversible damage marks, enhances the recognizability of the anti-counterfeiting label and the stability of the structure, and prevents sealing failure and liquid leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to bottle cap design technical field, concretely relates to a kind of aluminium cylinder anti-pull bottle cap and container bottle. Including inner plug, inner cover, inner cover and aluminium cylinder, the lower end of the inner plug is embedded in bottle mouth, the inner cover is connected on the outer lateral wall of the inner plug and the bottle mouth, the inner cover is sleeved in the outer side end side of the inner cover, the aluminium cylinder is wrapped in the outer side of inner cover and inner cover;Along pull direction, the inner cover includes negative ring and main body in sequence, spacing is left between the main body and negative ring and is connected with connecting rib, the first gap is formed on the negative ring.In the present application, the first gap can weaken the strength of the inner cover. When the illegal elements pull the bottle cap along the pull direction, the connecting rib is deformed or shortened under stress, causing the aluminium cylinder to be extruded and deformed.
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Description

Technical Field

[0001] This utility model relates to the field of bottle cap design technology, specifically to an aluminum cylinder anti-pull-out bottle cap and a container bottle. Background Technology

[0002] To achieve anti-counterfeiting measures, high-end liquor incorporates anti-counterfeiting structures on its packaging and bottle caps, with the bottle cap's anti-counterfeiting structure being particularly important. To prevent the bottle cap from being completely pulled out and used to fill counterfeit liquor, a slot is placed at the bottle opening, and claws are installed on the inner wall of the cap. After the cap is installed on the bottle, the claws engage with the slot, forming an anti-pull-out structure. However, this method only increases the difficulty of preventing cap removal to a certain extent; counterfeiters can still forcefully pull out the cap using equipment, resulting in a relatively poor anti-counterfeiting effect. Utility Model Content

[0003] In view of this, the present invention provides an aluminum tube anti-pull-out bottle cap and a container bottle to solve the problem of poor anti-counterfeiting effect in the prior art.

[0004] In one aspect, this utility model provides an aluminum tube anti-pull-out bottle cap, including an inner plug, an inner sleeve, an inner cap, and an aluminum tube. The lower end of the inner plug is embedded in the bottle mouth, the inner sleeve is connected to the inner plug and the outer side wall of the bottle mouth, the inner cap is fitted on the outer side of the inner sleeve, and the aluminum tube is wrapped around the outer side of the inner sleeve and the inner cap.

[0005] Along the pulling direction, the inner sleeve includes a negative ring and a main body in sequence. A gap is left between the main body and the negative ring, and a connecting rib is provided for connecting them. The negative ring has a first notch.

[0006] In this application, the first notch weakens the strength of the inner sleeve. When criminals pull up the bottle cap along the pulling direction, the connecting ribs deform or shorten under stress, causing the aluminum tube to be squeezed and deformed. The first notch causes uneven stress, making it easy to break at this point during the pulling process, squeezing the aluminum tube and causing irreparable damage. At the same time, after the negative ring breaks through the first notch, the aluminum tube loses the support of the inner sleeve, which will also form irregular deformation, or even crack the aluminum tube, thus preventing counterfeiting and improving the anti-counterfeiting effect.

[0007] In one optional embodiment, a slot is provided on the outer wall of the bottle opening, and the main body has a claw that engages with the slot.

[0008] In this application, the rigid engagement of the claws and the slot directly enhances the resistance to axial pull-out forces. When a criminal attempts to remove the cap, the engagement of the claws and the slot creates initial mechanical resistance, significantly increasing the torque required to remove the cap. The negative ring is connected to the main body by a connecting rib, and the negative ring has a first notch. When removing the cap, the connecting rib is prone to breakage or plastic deformation due to concentrated stress, and the notch becomes a weak point, causing the negative ring to break at the notch. This damage is irreversible, making the cap impossible to restore.

[0009] In one alternative embodiment, the open end of the aluminum cylinder has a folded edge that wraps around the negative ring in the pulling direction.

[0010] In this application, the folded edge's enveloping structure ensures a tight fit between the aluminum tube's open end and the negative ring, creating a physical lock. When a criminal attempts to remove the cap, the force transmitted through the connecting ribs from the negative ring directly acts on the aluminum tube's folded edge, forcing the aluminum tube to twist or tear synchronously with the deformation of the inner sleeve, enhancing the linkage of the damage. The enveloping design of the folded edge and the negative ring creates a lever effect when pulled out. After the negative ring breaks, the aluminum tube's folded edge, losing its inner support, folds outward or curls, causing wrinkles, cracks, or even partial breaks at the aluminum tube's open end. This deformation is directional and irreversible, significantly increasing the visibility of the damage.

[0011] In one optional embodiment, the inner sleeve includes an upper inner sleeve and a lower inner sleeve fixedly connected to the upper inner sleeve. The upper inner sleeve is sealed to the upper end of the inner plug, and the lower inner sleeve is disposed on the outer side wall of the bottle mouth. The negative ring and the main body are disposed on the lower inner sleeve.

[0012] In one alternative embodiment, the body has a locking hole, and the upper inner sleeve has a locking block fused within the locking hole.

[0013] In this application, the connection between the locking block and the locking hole forms a circumferential constraint, effectively preventing relative rotation between the upper and lower inner sleeves during use or cap removal, and connecting the upper and lower inner sleeves. This rigid fit avoids loosening of the threaded connection due to rotation between the sleeves, ensuring the sealing performance of the inner cap and the upper inner sleeve, as well as the overall structural stability.

[0014] In one alternative embodiment, the body has a lower positioning step, and the upper inner sleeve has an upper positioning step that is fused to the lower positioning step.

[0015] In this application, the axial positioning of the upper and lower inner sleeves is achieved through a rigid connection between the lower and upper positioning steps. This double-step design precisely constrains the axial displacement between the two, thereby ensuring accurate engagement of the claws and the bottle neck groove, and improving the reliability of the anti-pull-out structure. The accuracy of axial positioning is directly related to the sealing performance between the inner plug and the bottle neck. If the inner sleeve assembly experiences axial displacement, a gap may form between the inner plug and the bottle neck, causing liquid leakage. The step fit maintains a stable fit of the inner plug by fixing the relative positions of the upper and lower inner sleeves, effectively preventing seal failure.

[0016] In one alternative embodiment, the outer wall of the claw has thickened ribs.

[0017] In this application, the thickened ribs increase the local thickness of the locking claws. During the cap removal process, when the locking claws are pushed outward by the bottle opening, the contact area and pressure between the thickened ribs and the inner wall of the aluminum tube increase, forcing the aluminum tube to undergo more severe irreversible deformation (such as wrinkling, tearing, or cracking). This linked deformation directly undermines the structural integrity of the aluminum tube, forming obvious and visible anti-counterfeiting marks. The thickened ribs enhance the mechanical strength of the locking claws through localized thickening, making them more difficult to undergo plastic deformation or breakage during cap removal.

[0018] In one alternative implementation, the thickened ribs do not protrude from the outer wall of the main body.

[0019] In this application, the thickened ribs do not protrude from the outer wall of the main body, avoiding assembly resistance caused by friction between the protruding ribs and the inner wall of the aluminum cylinder during installation. This allows the capping process to be adapted to existing production lines without additional adjustments, reducing assembly difficulty and preventing the ribs from scratching the inner wall of the aluminum cylinder and affecting the sealing performance. Although the thickened ribs do not protrude, the rigidity of the outer wall of the jaws is still increased through localized thickening. When removing the cap, the point of application of the external support force of the jaws is concentrated on a specific area of ​​the inner wall of the aluminum cylinder, directionally inducing wrinkles or tears in the aluminum cylinder, forming more regular and irreversible damage marks, and improving the recognizability of the anti-counterfeiting mark.

[0020] In one optional embodiment, the lower inner sleeve has a plurality of first anti-rotation teeth, and the outer wall of the bottle mouth has a plurality of second anti-rotation teeth, wherein the first anti-rotation teeth are inserted between two adjacent second anti-rotation teeth.

[0021] In this application, the insertion structure of the first and second anti-rotation teeth forms a circumferential engagement, directly preventing rotation between the bottle cap and the bottle mouth. This rigid fit prevents criminals from disrupting the threaded connection or the engagement of the claws and slots by rotating the bottle cap, thus enhancing the anti-counterfeiting structure's resistance to damage.

[0022] Secondly, this utility model also provides a container bottle, including an aluminum cylinder anti-pull-out cap as described in any of the above claims. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the upper inner sleeve structure;

[0026] Figure 3 Schematic diagram of the lower inner sleeve structure Figure 1 ;

[0027] Figure 4 Schematic diagram of the lower inner sleeve structure Figure 2 ;

[0028] Figure 5 This is a schematic diagram of the bottle opening.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Aluminum cylinder; 101. Inner aluminum cylinder; 102. Outer aluminum cylinder; 103. Pad; 2. Inner cap; 3. Upper inner sleeve; 301. Locking block; 302. Upper positioning step; 4. Lower inner sleeve; 401. Main body; 4011. Second notch; 4012. Claw; 40121. Thickened rib; 4014. Gap; 4015. Lower positioning step; 4016. First anti-rotation tooth; 402. Negative ring; 4021. First notch; 5. Inner plug; 6. Bottle mouth; 601. Locking groove; 602. Second anti-rotation tooth. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] The following is combined with Figures 1 to 5 The following describes embodiments of the present invention.

[0033] Example 1

[0034] This utility model provides an aluminum tube anti-pull-out bottle cap, including an inner plug 5, an inner sleeve, an inner cap 2, and an aluminum tube 1. The lower end of the inner plug 5 is embedded in the bottle mouth 6 and forms a seal between them. The inner sleeve is connected to the outer side wall of the inner plug 5 and the bottle mouth 6. The inner cap 2 is fitted on the outer side of the inner sleeve. The aluminum tube 1 is wrapped around the outer side of the inner sleeve and the inner cap 2.

[0035] Along the pulling direction, the inner sleeve sequentially includes a negative ring 402 and a main body 401. A gap is left between the main body 401 and the negative ring 402, and a connecting rib is provided for connection. The negative ring 402 has a first notch 4021. The first notches 4021 on the negative ring 402 can be arranged in pairs and symmetrically on the negative ring 402, and there can be multiple first notches 4021. The pulling direction is from the bottle body to the bottle mouth 6. Both the main body 401 and the negative ring 402 are annular structures.

[0036] In this application, the first notch 4021 weakens the strength of the inner sleeve. When criminals pull up the bottle cap along the pulling direction, the connecting ribs are deformed or shortened by force, causing the aluminum tube 1 to be squeezed and deformed. The first notch 4021 causes uneven force distribution, making it easy to break at this point during the pulling process, squeezing the aluminum tube 1 and causing irreparable damage. At the same time, after the negative ring 402 breaks from the first notch 4021, the aluminum tube 1 loses the support of the inner sleeve, which will also form irregular deformation, or even crack the aluminum tube 1, thus preventing counterfeiting and improving the anti-counterfeiting effect.

[0037] In one alternative implementation, refer to Figure 1 , Figure 3 as well as Figure 5 The outer wall of the bottle opening 6 is provided with a slot 601, and the main body 401 has a claw 4012 that engages in the slot 601. The main body 401 is provided with a plurality of claws 4012 protruding from its inner wall and engaging in the slot 601 along the circumferential direction.

[0038] In this application, the rigid engagement of the claw 4012 and the slot 601 directly enhances the resistance to axial pull-out forces. When a criminal attempts to remove the cap, the engagement of the claw 4012 and the slot 601 creates initial mechanical resistance, significantly increasing the torque required to remove the cap. The negative ring 402 is connected to the main body 401 by a connecting rib, and the negative ring 402 has a first notch 4021. When removing the cap, the connecting rib is prone to breakage or plastic deformation due to concentrated stress, and the notch becomes a weak point, causing the negative ring 402 to break at the notch. This damage is irreversible, making the cap impossible to restore.

[0039] In one alternative embodiment, in the pulling direction, the open end of the aluminum cylinder 1 has a folded edge that wraps around the negative ring 402.

[0040] In this application, the folded edge's wrapping structure ensures that the open end of the aluminum cylinder 1 is tightly fitted to the negative ring 402, forming a physical lock. When a criminal attempts to remove the cap, the force transmitted through the connecting ribs by the negative ring 402 directly acts on the folded edge of the aluminum cylinder 1, forcing the aluminum cylinder 1 to twist or tear synchronously with the deformation of the inner sleeve, enhancing the linkage of the damage. The wrapping design of the folded edge and the negative ring 402 can create a lever effect when pulled out. After the negative ring 402 breaks, the folded edge of the aluminum cylinder 1 folds outward or curls due to the loss of inner support, causing wrinkles, cracks, or even partial breaks at the open end of the aluminum cylinder 1. This deformation is directional and irreversible, significantly increasing the visibility of the damage.

[0041] In one optional embodiment, the inner sleeve includes an upper inner sleeve 3 and a lower inner sleeve 4 fixedly connected to the upper inner sleeve 3. The upper inner sleeve 3 is sealed to the upper end of the inner plug 5. The lower inner sleeve 4 is disposed on the outer side wall of the bottle mouth 6, wherein the negative ring 402 and the main body 401 are disposed on the lower inner sleeve 4. The upper end of the inner plug 5 is fixedly connected to the inner wall of the upper inner sleeve 3, and the inner plug 5 and the upper inner sleeve 3 should also be sealed. The inner cap 2 is threaded onto the outside of the upper inner sleeve 3. After the inner cap 2 is connected to the upper inner sleeve 3, the upper end of the upper inner sleeve 3 is sealed to the inner cap 2.

[0042] An aluminum cylinder 1 is fitted onto the outside of the inner cover 2 and the lower inner sleeve 4. Alternatively, in this embodiment, the aluminum cylinder 1 includes an inner aluminum cylinder 101, an outer aluminum cylinder 102, and a pad 103. The inner aluminum cylinder 101 is fitted onto the outside of the inner cover 2 and the lower inner sleeve 4, and the outer aluminum cylinder 102 is fitted onto the outside of the inner aluminum cylinder 101, forming a double-layer aluminum cylinder structure. A cavity is provided between the top of the inner aluminum cylinder 101 and the top of the outer aluminum cylinder 102, and the pad 103 is disposed within the cavity, providing support. In other embodiments, a single-layer aluminum cylinder structure is also possible.

[0043] In one optional embodiment, the main body 401 has a locking hole, and the upper inner sleeve 3 has a locking block 301 fused within the locking hole. The main body 401 includes a main ring and a first connecting wall. The first connecting wall is located on the side of the main ring away from the negative ring 402. The locking hole is located on the first connecting wall. The locking claw 4012 and the first connecting wall are located on the same side of the main ring and are spaced apart. A second connecting wall may be provided on the side of the upper inner sleeve 3 near the main body 401. The locking block 301 is located on the second connecting wall. The first connecting wall may be sleeved on the outside of the second connecting wall, and the locking block 301 is engaged within the locking hole. The gap between the first connecting walls is the second notch 4011. The claw 4012 is disposed in the second notch 4011. At least one side of the claw 4012 has a gap 4014 between it and the first connecting wall. In order to reduce the difficulty of the process, in this embodiment the gap 4014 is only disposed on one side of the claw 4012. In other embodiments, the gap 4014 can of course be disposed on both sides of the claw 4012.

[0044] It is worth noting that the gap 4014 increases the elasticity of the claw 4012, which solves the problem of excessive capping force caused by the thickening of the claw 4012. This allows for an increase in the lifting torque (i.e., increasing the difficulty of cap removal) by increasing the wall thickness of the claw 4012 (the thickness of the claw 4012 in the prior art is generally 0.9mm-1.2mm, while in this invention, the claw 4012 is thickened to 1.5mm-2.0mm). In addition, when criminals remove the bottle cap, the bending force of the claw 4012 is transmitted to the gap 4014 during the bending process, forming a shearing force, which makes it easier for the lower edge of the main body 401 to break at the gap 4014 (so that the lower inner sleeve 4 is easily damaged if the cap is forcibly removed), thus improving the anti-counterfeiting effect. Moreover, the gap 4014 makes the claw 4012 deformed more when it passes the bottle mouth 6 during the cap removal process, making the aluminum tube 1 more likely to be deformed or cracked, further improving the anti-counterfeiting effect.

[0045] In this application, the connection between the locking block 301 and the locking hole forms a circumferential constraint, effectively preventing relative rotation between the upper inner sleeve 3 and the lower inner sleeve 4 during use or cap removal, and connecting the upper inner sleeve 3 and the lower inner sleeve 4. This rigid fit can prevent the threaded connection from loosening due to rotation between the aluminum cylinders, ensuring the sealing performance of the inner cap 2 and the upper inner sleeve 3 and the overall structural stability.

[0046] In one alternative embodiment, the main body 401 has a lower positioning step 4015, and the upper inner sleeve 3 has an upper positioning step 302 that is fused to the lower positioning step 4015.

[0047] In this application, the axial positioning of the upper inner sleeve 3 and the lower inner sleeve 4 is achieved through the rigid connection between the lower positioning step 4015 and the upper positioning step 302. This double-step design can precisely constrain the axial displacement between the two, thereby ensuring the precise engagement of the claw 4012 and the bottle mouth 6 slot 601, and improving the reliability of the anti-pull-out structure. The accuracy of axial positioning is directly related to the sealing performance of the inner plug 5 and the bottle mouth 6. If the inner sleeve assembly experiences axial displacement, a gap may form between the inner plug 5 and the bottle mouth 6, causing liquid leakage. The step fit maintains the stable engagement of the inner plug 5 by fixing the relative positions of the upper inner sleeve 3 and the lower inner sleeve 4, effectively preventing sealing failure.

[0048] In one alternative embodiment, the outer wall of the claw 4012 has a thickened rib 40121. It is worth noting that the thickened rib 40121 makes it easier for the claw 4012 to contact the inner wall of the aluminum cylinder 1 when it is pushed outward by the bottle mouth 6 during the process of lifting the bottle cap, thus making the aluminum cylinder 1 more prone to deformation.

[0049] In this application, the thickened rib 40121 increases the local thickness of the claw 4012. During the cap removal process, when the claw 4012 is pushed outward by the bottle mouth 6, the contact area and pressure between the thickened rib 40121 and the inner wall of the aluminum cylinder 1 increase, forcing the aluminum cylinder 1 to undergo more severe irreversible deformation (such as wrinkling, tearing, or cracking). This linked deformation directly destroys the structural integrity of the aluminum cylinder 1, forming obvious and visible anti-counterfeiting marks. The thickened rib 40121 strengthens the mechanical strength of the claw 4012 through local thickening, making it more difficult for it to undergo plastic deformation or breakage during cap removal.

[0050] In one alternative embodiment, the thickened rib 40121 does not protrude from the outer wall of the main body 401.

[0051] In the prior art, the upper inner sleeve 3 and the lower inner sleeve 4 require post-assembly, which easily generates debris. To solve this problem, the connection method of the upper inner sleeve 3 and the lower inner sleeve 4 in this utility model is as follows: the upper inner sleeve 3 and the lower inner sleeve 4 are integrally injection molded from two different materials, avoiding post-assembly. As an option, in this embodiment, the upper inner sleeve 3 is made of PET material, and the lower inner sleeve 4 is made of PC material (PC material has both rigidity and toughness, good thermal stability, and is not easily softened by heating). Of course, materials with similar properties can also be selected in other embodiments.

[0052] In this application, the thickened rib 40121 does not protrude from the outer wall of the main body 401, avoiding assembly resistance caused by friction between the rib protrusion and the inner wall of the aluminum cylinder 1 during installation. This allows the capping process to be adapted to existing production lines without additional adjustments, reducing assembly difficulty, while preventing the rib protrusion from scratching the inner wall of the aluminum cylinder 1 and affecting the sealing performance. Although the thickened rib 40121 does not protrude, the localized thickening still increases the rigidity of the outer wall of the claw 4012. When removing the cap, the point of application of the external support force of the claw 4012 is concentrated in a specific area of ​​the inner wall of the aluminum cylinder 1, directionally inducing wrinkles or tears in the aluminum cylinder 1, forming more regular and irreversible damage marks, and improving the recognizability of the anti-counterfeiting mark.

[0053] In one optional embodiment, the lower inner sleeve 4 has a plurality of first anti-rotation teeth 4016, and the outer wall of the bottle mouth 6 has a plurality of second anti-rotation teeth 602. The first anti-rotation teeth 4016 are inserted between two adjacent second anti-rotation teeth 602. The first anti-rotation teeth 4016 are disposed on the inner wall of the lower inner sleeve 4, and the second anti-rotation teeth 602 are disposed on the outer wall of the bottle mouth 6. That is, after the bottle cap is pressed against the bottle mouth 6, the first anti-rotation teeth 4016 are inserted between the second anti-rotation teeth 602, and the two work together to restrict the relative rotation of the bottle cap and the bottle mouth 6. In addition, as an option, in this embodiment, the first anti-rotation teeth 4016 serve as the aforementioned connecting rib. Of course, in other embodiments, the connecting rib can also be provided independently, or the connecting rib and the first anti-rotation teeth 4016 can be provided simultaneously.

[0054] In this application, the insertion structure of the first anti-rotation tooth 4016 and the second anti-rotation tooth 602 forms a circumferential engagement, directly preventing rotation between the bottle cap and the bottle mouth 6. This rigid fit can prevent criminals from damaging the threaded connection or the engagement between the claw 4012 and the slot 601 by rotating the bottle cap, thus improving the anti-counterfeiting structure's resistance to damage.

[0055] Example 2

[0056] This utility model also provides a container bottle, including an aluminum cylinder anti-pickup cap as described in any of the above claims.

[0057] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An aluminum tube anti-pry bottle cap, characterized in that, The device includes an inner plug (5), an inner sleeve, an inner cap (2), and an aluminum tube (1). The lower end of the inner plug (5) is embedded in the bottle mouth (6). The inner sleeve is connected to the outer side wall of the inner plug (5) and the bottle mouth (6). The inner cap (2) is fitted on the outer side of the inner sleeve. The aluminum tube (1) is wrapped around the outer side of the inner sleeve and the inner cap (2). Along the pulling direction, the inner sleeve includes a negative ring (402) and a main body (401) in sequence. There is a gap between the main body (401) and the negative ring (402) and a connecting rib is provided. The negative ring (402) has a first notch (4021).

2. The aluminum cylinder anti-pry cap according to claim 1, characterized in that, A slot (601) is provided on the outer wall of the bottle mouth (6), and a claw (4012) is provided on the main body (401) to engage in the slot (601).

3. The aluminum cylinder anti-pry cap according to claim 1, characterized in that, In the pulling direction, the open end of the aluminum cylinder (1) has a folded edge that wraps around the negative ring (402).

4. The aluminum cylinder anti-pry cap according to claim 1, characterized in that, The inner sleeve includes an upper inner sleeve (3) and a lower inner sleeve (4) fixedly connected to the upper inner sleeve (3). The upper inner sleeve (3) is sealed to the upper end of the inner plug (5). The lower inner sleeve (4) is disposed on the outer side wall of the bottle mouth (6). The negative ring (402) and the main body (401) are disposed on the lower inner sleeve (4).

5. The aluminum cylinder anti-pry cap according to claim 4, characterized in that, The main body (401) has a card hole, and the upper inner sleeve (3) has a card block (301) fused to the card hole.

6. The aluminum cylinder anti-pry cap according to claim 4, characterized in that, The main body (401) has a lower positioning step (4015), and the upper inner sleeve (3) has an upper positioning step (302) that is fused to the lower positioning step (4015).

7. The aluminum cylinder anti-pry cap according to claim 2, characterized in that, The outer wall of the claw (4012) has thickened ribs (40121).

8. The aluminum cylinder anti-pry cap according to claim 7, characterized in that, The thickened rib (40121) does not protrude from the outer wall of the main body (401).

9. The aluminum cylinder anti-pry cap according to claim 4, characterized in that, The lower inner sleeve (4) has a plurality of first anti-rotation teeth (4016), and the outer wall of the bottle mouth (6) has a plurality of second anti-rotation teeth (602). The first anti-rotation teeth (4016) are inserted between two adjacent second anti-rotation teeth (602).

10. A container bottle, characterized in that, Including the aluminum cylinder anti-pull-out bottle cap as described in any one of claims 1-9.