Anti-pull-off and anti-fake bottle cap

Abstract

The utility model discloses an anti-pull-off anti-fake bottle cap, which comprises an inner plug, an inner sleeve, an inner cap, an upper cap and a lower sleeve, an anti-pull-off piece is arranged between the upper cap and the lower sleeve, the upper cap is clamped and matched with the lower sleeve through the anti-pull-off piece, the inner sleeve comprises a bottle opening part and a bottle neck part, a plurality of easily broken pieces are arranged between the bottle opening part and the bottle neck part, and the bottle opening part and the bottle neck part are matched with each other. The bottle opening part is clamped and matched with the bottle neck part through an easy-to-break piece; the bottle opening part of the inner sleeve is in threaded connection with the inner cover; the inner plug is arranged in the inner sleeve and matched with the bottle opening portion of the inner sleeve in an inserted mode. According to the anti-counterfeiting bottle cap, the anti-counterfeiting blank of the bottle cap structure in the vertical pulling-out stress direction is filled. The anti-counterfeiting blank of the anti-pulling bottle cap structure under the condition of high-temperature water boiling is filled. The adaptability of a bottle cap product to vertical pull-out force is greatly enhanced, pull-out anti-counterfeiting of the bottle cap product under the conditions of boiling in water and high temperature is guaranteed, malicious high-temperature pull-out is prevented, and therefore the anti-counterfeiting function of the product is enhanced. The production cost is reduced, the production process is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle caps, in particular to an anti-pull-off anti-counterfeiting bottle cap. Background Art

[0002] The ordinary liquor bottle caps currently available on the market include inner plugs, inner sleeves (also called bottle mouths, wine pourers, connecting sleeves, etc., hereinafter collectively referred to as inner sleeves), inner covers, upper covers (including top pieces and upper covers, the two accessories are combined by welding or strong pressure, so hereinafter collectively referred to as upper covers), and lower covers. Ordinary liquor bottle caps have these five accessories combined to form a bottle cap, which is the basic product in the current bottle cap industry.

[0003] There are defects in the anti-counterfeiting technology of existing liquor bottle caps, mainly in the following points:

[0004] 1. Under a certain vertical physical pulling force, the bottle cap will be pulled off the bottle or the upper cover will be pulled off the inner cover.

[0005] 2. Under high temperature conditions of boiling water or steam, the bottle cap will be pulled off the bottle and can be easily restored.

[0006] 3. The anti-counterfeiting basis of the liquor bottle caps currently on the market is based on horizontal unscrewing to open, which causes the anti-counterfeiting parts such as anti-counterfeiting teeth or anti-counterfeiting flaps, bursting rings, and connecting pieces to break and damage. This structural design is based on horizontal unscrewing force, but fails to consider vertical force factors, resulting in incomplete anti-counterfeiting.

[0007] 4. Limitations of raw materials used. The inner sleeve that comes into contact with wine is mostly made of PET, which is easily deformed at around 75 degrees, resulting in ordinary bottle caps being unable to withstand high temperatures. The material is not strong enough and has insufficient toughness, which results in the bottle cap being easily pulled off by physical pulling after it is put on the bottle. Under a certain pulling force, the bottle cap will be pulled off the bottle, greatly reducing the anti-counterfeiting performance of the bottle cap.

[0008] 5. Currently, there is also a method of embedding a metal steel ring in the inner sleeve on the market, but the injection molding cost is high, and the injection mold is easily damaged during production. Because the metal steel ring is deformed smaller, it is easy to cause the glass bottle mouth to crack when pressed with the bottle. There are sealing and safety hazards in the transportation and storage of liquor, and in food drinking safety.

[0009] 6. For bottle caps currently on the market, after the anti-counterfeiting points are damaged, there is no obvious visual damage to the overall appearance, and the damage marks are not obvious. After a simple repair and re-bottling, it is not easy for consumers to identify.

[0010] 7. The current assembly method of liquor bottle caps is that the inner sleeve, inner cover and inner plug are assembled and then pressed into the lower sleeve, and then the upper cover is pressed onto the inner cover to form a whole bottle cap. Utility Model Content

[0011] In view of the shortcomings of the existing technology, the purpose of the utility model is to provide an anti-pull-off anti-counterfeiting bottle cap.

[0012] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an anti-pull-off anti-counterfeiting bottle cap, comprising: an inner plug, an inner sleeve, an inner cover, an upper cover and a lower cover, an anti-pull-off piece is provided between the upper cover and the lower cover, and the upper cover is snap-fitted with the lower cover through the anti-pull-off piece; the inner sleeve is an integrally formed structure formed by double-color / double-material injection molding, comprising a bottle mouth portion made of food-grade plastic and a bottle neck portion made of high-temperature resistant and high-strength plastic, the bottle mouth portion is a cap-shaped structure, and the bottom of the bottle mouth portion is annular, the top of the bottle mouth portion is provided with a liquid outlet, the bottle neck portion is a circular tubular structure, and a There are several breakable parts, and the bottle mouth is snap-fitted with the bottle neck through the breakable parts; the outer surface of the bottle mouth of the inner sleeve is provided with a thread, and the inner cavity wall of the inner cover is also provided with a thread, and the bottle mouth of the inner sleeve is threadedly connected to the inner cover; the inner cover is arranged in the inner cavity of the upper cover, and the outer surface of the inner cover is provided with a first step, and correspondingly, the inner cavity wall of the upper cover is provided with a first clamping block that snap-fits with the first step; the bottle neck of the inner sleeve is arranged in the lower sleeve, and the outer surface of the bottle neck is provided with a second step, and correspondingly, the inner wall of the lower sleeve is provided with a second clamping block that snap-fits with the second step; the inner plug is arranged in the inner sleeve, and is plug-fitted with the bottle mouth of the inner sleeve.

[0013] Preferably, the outer surface of the inner cover is provided with a first anti-slip convex tooth, and correspondingly, the inner cavity wall of the upper cover is provided with a second anti-slip convex tooth cooperating with the first anti-slip convex tooth; the outer surface of the bottleneck is provided with a third anti-slip convex tooth, and correspondingly, the inner wall of the lower cover is provided with a fourth anti-slip convex tooth cooperating with the third anti-slip convex tooth.

[0014] Preferably, the anti-pull-out part includes a connecting piece and several anti-counterfeiting toothed belts arranged on one side of the connecting piece, the anti-pull-out part is arranged on the upper edge of the lower cover, and the anti-counterfeiting toothed belt is connected to the upper edge of the lower cover, correspondingly, the lower edge of the upper cover is provided with a first slot for accommodating the anti-pull-out part, the first slot is a blind hole, and a protrusion is provided on one side of the first slot, the outward protrusion length of the protrusion is greater than the thickness of the connecting piece and the anti-counterfeiting toothed belt, correspondingly, there are two anti-counterfeiting toothed belts, and the two anti-counterfeiting toothed belts form a bayonet with the upper edge of the lower cover and one side of the connecting piece. When the anti-pull-out part is installed in the first slot, the protrusion is buckled with the bayonet.

[0015] Preferably, the breakable part is arranged at the bottom of the bottle mouth, and the breakable part includes a first clip and a second clip. The top of the bottle neck is provided with a first clip groove that cooperates with the first clip, and the top of the bottle neck is provided with a second clip groove that cooperates with the second clip.

[0016] Preferably, the number of the first buckles is 2, and they are symmetrically arranged along the axis of the bottle mouth; the number of the second buckles is 2, and they are symmetrically arranged along the axis of the bottle mouth.

[0017] Preferably, the first clip includes three first protrusions arranged at intervals, and correspondingly, the first slot includes three first through holes that can accommodate the first protrusions. When the first clip is engaged with the first slot, the three first protrusions are respectively located in the three first through holes; the second clip includes a second protrusion, and correspondingly, the second slot includes a second through hole that can accommodate the second protrusion. When the second clip is engaged with the second slot, the second protrusion is located in the second through hole.

[0018] Preferably, the breakable part is arranged at the bottom of the bottle mouth, the breakable part includes a third clip, the top of the bottle neck is provided with a third slot that cooperates with the third clip, the bottom of the bottle mouth is provided with an insert block, and correspondingly, the top of the bottle neck is provided with a slot.

[0019] Preferably, the number of the third buckles is 2, and they are symmetrically arranged along the axis of the bottle mouth. The number of the insert blocks is 2, and they are symmetrically arranged along the axis of the bottle mouth.

[0020] Preferably, the third buckle includes a third protrusion, and correspondingly, the third slot includes a third through hole capable of accommodating the third protrusion. When the third buckle is engaged with the third slot, the third protrusion is located in the third through hole.

[0021] The beneficial effects of the utility model are as follows: the utility model utilizes the wall thickness of the upper cover at the connection between the upper cover and the lower cover to open a first notch slightly larger than the anti-pullout piece provided on the lower cover on the outer side of the upper cover, a protrusion is provided at the first notch of the upper cover, and the lower cover is provided with a bayonet formed by a connecting piece, an anti-counterfeiting toothed belt and the upper edge of the lower cover. The anti-pullout piece of the lower cover is in the first notch of the upper cover, and the protrusion of the upper cover is buckled in the bayonet of the anti-pullout piece of the lower cover. With this anti-counterfeiting design, the anti-pullout piece of the lower cover will be destroyed regardless of the horizontal twisting opening force and the vertical physical pullout force, or the high-temperature boiling water pullout, thereby forming an anti-counterfeiting structure that is easy to identify and cannot be restored after destruction.

[0022] The inner sleeve of the bottle cap adopts a double-material injection molding process. Through the double-material mold structure design, the inner sleeve is divided into a bottle mouth part and a bottle neck part, and two different raw materials are used for injection molding respectively. According to the food hygiene standards of the liquor bottle cap and the high-temperature boiling and anti-pull-off anti-counterfeiting function requirements, the bottle mouth part is in contact with the liquor, and the upper part is made of PET food-grade raw materials. The neck of the bottle is not in contact with the liquor and is made of high-temperature resistant and high-strength materials, such as PBT+glass fiber, such as nylon+glass fiber and other materials (not limited to the above materials). Through the above settings, it is ensured that the inner sleeve of the bottle cap meets the requirements of food-grade hygiene conditions, and the anti-deformation force of the bottleneck is enhanced, so that it will not be easily pulled off after being matched with the bottle mouth, thereby achieving the anti-pull-off anti-counterfeiting function requirements and greatly enhancing the high-temperature resistance and physical external force anti-counterfeiting requirements.

[0023] The inner sleeve is an integrated structure formed by double-material injection molding, including a bottle mouth made of food-grade plastic and a bottle neck made of high-temperature resistant and high-strength plastic. The bottle mouth is designed with an interlaced structure and injection-molded with the bottle neck, which not only ensures the functional requirements of the inner sleeve in bottle cap assembly, opening and close fit with the bottle mouth, but also meets various requirements of product production, filling, transportation, storage, etc.; it can also ensure that when the bottle cap is pulled off by strong external force, it will preferentially break from the upper and lower joints of the double-material injection-molded inner sleeve, so that the inner sleeve of the bottle cap is divided into two, forming clearly identifiable and irreversible damage, thereby achieving a new structural anti-counterfeiting of the bottle cap.

[0024] The inner sleeve of the bottle cap adopts double-material injection molding technology, which is conducive to the rapid injection molding of the product on the injection molding machine. The inner sleeve remains as a whole, reducing the assembly cost of the subsequent process and helping to improve production efficiency.

[0025] This is conducive to solving the fatal defect of the current bottle cap that the bottle cap can be pulled off from the bottle mouth or the upper cover can be pulled off from the inner cover by using tools to pull hard or boiling in high temperature water, while the anti-counterfeiting component is not damaged and is difficult to identify. At the same time, it solves the problem that the QR code reward red envelope in the bottle cap can be read by abnormal consumption.

[0026] In addition to the existing anti-counterfeiting structure, a vertical pull-off resistance structure has been added to fill the gap in the structural anti-counterfeiting of liquor bottle caps under vertical pull-off forces. This anti-counterfeiting bottle cap structural design destroys the anti-counterfeiting component regardless of the existing horizontal twist-off or the newly added vertical pull-off, creating an easily identifiable anti-counterfeiting feature.

[0027] In addition to the existing anti-counterfeiting structure, a high-temperature boiling-resistant anti-counterfeiting structure has been added to fill the gap in the structural anti-counterfeiting of liquor bottle caps under high-temperature boiling conditions. This anti-counterfeiting bottle cap structural design will destroy the anti-counterfeiting components under high-temperature boiling conditions, forming an anti-counterfeiting function that is easy to identify.

[0028] In terms of structural anti-counterfeiting measures for bottle caps, it fills the gap in anti-counterfeiting measures for bottle caps in the vertical pull-off direction and in anti-counterfeiting measures for bottle caps that cannot be pulled off under high-temperature boiling conditions. In terms of injection molding and packaging technology for bottle caps, it fills the gap in the application of double-material and double-color injection molding in the industry.

[0029] It greatly improves the anti-counterfeiting function of bottle cap products, and truly achieves the characteristics of irreversibility of the bottle cap after malicious damage and easy identification after damage. It can prevent malicious force and high-temperature boiling to pull it off, malicious claims, and counterfeiting incidents in the market.

[0030] This greatly enhances the adaptability of the bottle cap product to vertical pull-off forces, ensuring the anti-counterfeiting of the bottle cap product under boiling water and high temperature conditions, preventing malicious high-temperature pull-off, and thus enhancing the product's anti-counterfeiting function. Compared with other split inner sleeves or embedded metal steel ring anti-pull-off methods, this reduces production costs, simplifies production processes, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural diagram of the utility model;

[0032] Figure 2 It is a cross-sectional view of the utility model;

[0033] Figure 3 This is an exploded view of the structure of the present utility model;

[0034] Figure 4 It is a structural diagram of the upper cover and the lower cover;

[0035] Figure 5 This is a structural exploded view of the upper cover and lower sleeve;

[0036] Figure 6 This is one of the structural diagrams of the inner sleeve;

[0037] Figure 7 This is one of the structural exploded views of the inner sleeve;

[0038] Figure 8 This is the second structural diagram of the inner sleeve;

[0039] Figure 9 This is the second structural exploded diagram of the inner sleeve;

[0040] Figure 10 Schematic diagram of the structure of the inner cover. DETAILED DESCRIPTION

[0041] like Figures 1-10As shown, an anti-pull-off anti-counterfeiting bottle cap comprises: an inner plug 1, an inner sleeve 2, an inner cover 3, an upper cover 4 and a lower sleeve 5, an anti-pull-off piece 6 is provided between the upper cover 4 and the lower sleeve 5, and the upper cover 4 is snap-fitted with the lower sleeve 5 through the anti-pull-off piece 6; the inner sleeve 2 is an integrally formed structure formed by two-color / two-material injection molding, comprising a bottle mouth 21 made of food-grade plastic and a bottle neck 22 made of high-temperature resistant and high-strength plastic, the bottle mouth 21 is a cap-shaped structure, and the bottom of the bottle mouth 21 is annular, the top of the bottle mouth 21 is provided with a liquid outlet 7, the bottle neck 22 is a circular tubular structure, a plurality of breakable pieces 8 are provided between the bottle mouth 21 and the bottle neck 22, the bottle mouth 21 is through The easy-to-break piece 8 is snap-fitted with the bottleneck portion 22; the outer surface of the bottle mouth 21 of the inner sleeve 2 is provided with a thread, and the inner cavity wall of the inner cover 3 is also provided with a thread, and the bottle mouth 21 of the inner sleeve 2 is threadedly connected to the inner cover 3; the inner cover 3 is arranged in the inner cavity of the upper cover 4, and the outer surface of the inner cover 3 is provided with a first step 9, and correspondingly, the inner cavity wall of the upper cover 4 is provided with a first clamping block 10 that snaps together with the first step 9; the bottleneck portion 22 of the inner sleeve 2 is arranged in the lower sleeve 5, and the outer surface of the bottleneck portion 22 is provided with a second step 11, and correspondingly, the inner wall of the lower sleeve 5 is provided with a second clamping block 12 that snaps together with the second step 11; the inner plug 1 is arranged in the inner sleeve 2, and is plug-fitted with the bottle mouth 21 of the inner sleeve 2.

[0042] The outer surface of the inner cover 3 is provided with a first anti-slip convex tooth 13, and correspondingly, the inner cavity wall of the upper cover 4 is provided with a second anti-slip convex tooth 14 that cooperates with the first anti-slip convex tooth 13; the outer surface of the bottleneck portion 22 is provided with a third anti-slip convex tooth 15, and correspondingly, the inner wall of the lower cover 5 is provided with a fourth anti-slip convex tooth 16 that cooperates with the third anti-slip convex tooth 15.

[0043] The anti-pull-out member 6 includes a connecting piece 61 and several anti-counterfeiting toothed belts 62 arranged on one side of the connecting piece 61. The anti-pull-out member 6 is arranged on the upper edge of the lower sleeve 5, and the anti-counterfeiting toothed belt 62 is connected to the upper edge of the lower sleeve 5. Correspondingly, the lower edge of the upper cover 4 is provided with a first notch 17 for accommodating the anti-pull-out member 6. The first notch 17 is a blind hole, and a protrusion 18 is provided on one side of the first notch 17. The outward protrusion length of the protrusion 18 is greater than the thickness of the connecting piece 61 and the anti-counterfeiting toothed belt 62. Correspondingly, there are two anti-counterfeiting toothed belts 62, and the two anti-counterfeiting toothed belts 62 form a bayonet 19 with the upper edge of the lower sleeve 5 and one side of the connecting piece 61. When the anti-pull-out member 6 is installed in the first notch 17, the protrusion 18 is engaged with the bayonet 19.

[0044] In the above structure, a first slot 17 slightly larger than the anti-pulling-off piece 6 provided on the lower sleeve 5 is opened on the outer side of the upper cover 4 at the connection between the upper cover 4 and the lower sleeve 5 by using the wall thickness of the upper cover 4, a protrusion 18 is provided at the first slot 17 of the upper cover 4, and a clamping opening 19 surrounded by the connecting piece 61, the anti-pseudo tooth belt 62 and the upper edge of the lower sleeve 5 is provided on the lower sleeve 5. The anti-pulling-off piece 6 of the lower sleeve 5 is in the first slot 17 of the upper cover 4, and the protrusion 18 of the upper cover 4 is buckled in the clamping opening 19 of the anti-pulling-off piece 6 of the lower sleeve 5. This anti-pseudo design will damage the anti-pulling-off piece 6 of the lower sleeve 5 no matter the horizontal rotation opening force and the vertical physical pulling-off stress or the high-temperature water boiling pulling-off, thereby forming an easily identifiable anti-pseudo structure that cannot be restored after being damaged.

[0045] The inner sleeve 2 of the bottle cap is formed by double-material injection molding process. The inner sleeve 2 is divided into a bottle mouth part 21 and a bottle neck part 22 by double-material mold structure design, and is formed by injection molding of two different raw materials, respectively. According to the food hygiene standard of white wine bottle cap and the requirement of high-temperature water boiling anti-pulling-off anti-pseudo function, the bottle mouth part 21 contacts with wine, and the upper half part is made of PET food-grade raw material. The bottle neck part 22 does not contact with wine, and is made of high-temperature resistant and high-strength material, such as PBT+glass fiber, nylon+glass fiber and the like (not limited to the above materials). Through the above setting, the bottle cap inner sleeve 2 not only meets the requirement of food-grade sanitary condition, but also enhances the anti-deformation force of the bottle neck part 22, so that it will not be easily pulled off after cooperating with the bottle mouth, thereby achieving the requirement of anti-pulling-off anti-pseudo function, and greatly enhancing the requirement of high-temperature resistance and physical external force anti-pseudo.

[0046] The inner sleeve 2 is integrally formed by double-material injection molding, including the bottle mouth part 21 made of food-grade plastic and the bottle neck part 22 made of high-temperature resistant and high-strength plastic. The bottle mouth part 21 is designed by staggered structure and injection molding with the bottle neck part 22, which not only guarantees the functional requirements of the inner sleeve 2 in bottle cap assembly, opening and close cooperation with the bottle mouth, but also meets various requirements of product production, filling, transportation and storage. In addition, when the bottle cap is pulled off by external force, the inner sleeve 2 is broken at the upper and lower joint, so that the inner sleeve 2 is divided into two parts, which can be obviously identified and cannot be restored, thereby achieving the new anti-pseudo structure of the bottle cap.

[0047] The bottle cap inner sleeve 2 is formed by double-material injection molding technology, which is beneficial to the rapid injection molding of the product on the injection molding machine, and the inner sleeve 2 is still an integral whole, which reduces the assembly cost of the subsequent process and is beneficial to the improvement of production efficiency.

[0048] It is beneficial to solve the fatal defect that the existing bottle cap can be pulled off from the bottle mouth, the upper cover 4 can be pulled off from the inner cover 3 by using tools or high-temperature water boiling, and the anti-pseudo part is not damaged and not easy to identify. At the same time, the problem that the two-dimensional code reward red packet of the bottle cap is abnormally consumed and read is solved.

[0049] In addition to the existing anti-counterfeiting structure, a vertical pull-off resistance structure has been added to fill the gap in the structural anti-counterfeiting of liquor bottle caps under vertical pull-off forces. This anti-counterfeiting bottle cap structural design destroys the anti-counterfeiting component regardless of the existing horizontal twist-off or the newly added vertical pull-off, creating an easily identifiable anti-counterfeiting feature.

[0050] In addition to the existing anti-counterfeiting structure, a high-temperature boiling-resistant anti-counterfeiting structure has been added to fill the gap in the structural anti-counterfeiting of liquor bottle caps under high-temperature boiling conditions. This anti-counterfeiting bottle cap structural design will destroy the anti-counterfeiting components under high-temperature boiling conditions, forming an anti-counterfeiting function that is easy to identify.

[0051] Preferably, the breakable part 8 is arranged at the bottom of the bottle mouth 21, and the breakable part 8 includes a first clip 81 and a second clip 82. The top of the bottleneck part 22 is provided with a first clip groove 20 that cooperates with the first clip 81, and the top of the bottleneck part 22 is provided with a second clip groove 23 that cooperates with the second clip 82.

[0052] Preferably, the number of the first buckles 81 is two, and they are symmetrically arranged along the axis of the bottle mouth 21 ; the number of the second buckles 82 is two, and they are symmetrically arranged along the axis of the bottle mouth 21 .

[0053] Preferably, the first clip 81 includes three first protrusions 24 arranged at intervals, and correspondingly, the first slot 20 includes three first through holes 25 that can accommodate the first protrusions 24. When the first clip 81 is engaged with the first slot 20, the three first protrusions 24 are respectively located in the three first through holes 25; the second clip 82 includes a second protrusion 26, and correspondingly, the second slot 23 includes a second through hole 27 that can accommodate the second protrusion 26. When the second clip 82 is engaged with the second slot 23, the second protrusion 26 is located in the second through hole 27.

[0054] Preferably, the breakable part 8 is arranged at the bottom of the bottle mouth 21, and the breakable part 8 includes a third clip 83. The top of the bottle neck 22 is provided with a third slot 28 that cooperates with the third clip 83. The bottom of the bottle mouth 21 is provided with an insert block 29, and correspondingly, the top of the bottle neck 22 is provided with a slot 30.

[0055] Preferably, the number of the third buckles 83 is two, and they are symmetrically arranged along the axis of the bottle mouth 21 . The number of the inserting blocks 29 is two, and they are symmetrically arranged along the axis of the bottle mouth 21 .

[0056] Preferably, the third buckle 83 includes a third protrusion 31, and correspondingly, the third slot 28 includes a third through hole 32 that can accommodate the third protrusion 31. When the third buckle 83 is engaged with the third slot 28, the third protrusion 31 is located in the third through hole 32. The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, simple changes and substitutions by ordinary technicians in this field are within the scope of protection of the present invention.

Claims

1. An anti-counterfeiting bottle cap, characterized in that: include: The bottle is made of an inner plug, an inner sleeve, an inner cover, an upper cover and a lower cover. An anti-pullout piece is provided between the upper cover and the lower cover, and the upper cover is snap-fitted with the lower cover through the anti-pullout piece. The inner sleeve is an integrally formed structure formed by double-color / double-material injection molding, including a bottle mouth made of food-grade plastic and a bottle neck made of high-temperature resistant and high-strength plastic. The bottle mouth is a cap-shaped structure, and the bottom of the bottle mouth is annular. A liquid outlet is provided on the top of the bottle mouth. The bottle neck is a circular tubular structure. Several breakable pieces are provided between the bottle mouth and the bottle neck. The bottle mouth is connected to the bottle neck through the breakable pieces. The neck is snap-fitted; the outer surface of the bottle mouth of the inner sleeve is provided with a thread, and the inner cavity wall of the inner cover is also provided with a thread, and the bottle mouth of the inner sleeve is threadedly connected to the inner cover; the inner cover is arranged in the inner cavity of the upper cover, and the outer surface of the inner cover is provided with a first step, and correspondingly, the inner cavity wall of the upper cover is provided with a first clamping block that snaps together with the first step; the bottleneck of the inner sleeve is arranged in the lower sleeve, and the outer surface of the bottleneck is provided with a second step, and correspondingly, the inner wall of the lower sleeve is provided with a second clamping block that snaps together with the second step; the inner plug is arranged in the inner sleeve, and is plug-fitted with the bottle mouth of the inner sleeve.

2. The anti-counterfeiting bottle cap according to claim 1, characterized in that: The outer surface of the inner cover is provided with a first anti-slip convex tooth, and correspondingly, the inner cavity wall of the upper cover is provided with a second anti-slip convex tooth that cooperates with the first anti-slip convex tooth; the outer surface of the bottleneck is provided with a third anti-slip convex tooth, and correspondingly, the inner wall of the lower cover is provided with a fourth anti-slip convex tooth that cooperates with the third anti-slip convex tooth.

3. The anti-counterfeiting bottle cap according to claim 1 or 2, characterized in that: The anti-pull-out component includes a connecting piece and several anti-counterfeiting toothed belts arranged on one side of the connecting piece. The anti-pull-out component is arranged on the upper edge of the lower cover, and the anti-counterfeiting toothed belt is connected to the upper edge of the lower cover. Correspondingly, the lower edge of the upper cover is provided with a first notch for accommodating the anti-pull-out component. The first notch is a blind hole, and a protrusion is provided on one side of the first notch. The outward protrusion length of the protrusion is greater than the thickness of the connecting piece and the anti-counterfeiting toothed belt. Correspondingly, there are two anti-counterfeiting toothed belts, and the two anti-counterfeiting toothed belts form a bayonet with the upper edge of the lower cover and one side of the connecting piece. When the anti-pull-out component is installed in the first notch, the protrusion is buckled with the bayonet.

4. The anti-counterfeiting bottle cap according to claim 1, characterized in that: The breakable part is arranged at the bottom of the bottle mouth, and the breakable part includes a first clip and a second clip. The top of the bottle neck is provided with a first clip groove that cooperates with the first clip, and the top of the bottle neck is provided with a second clip groove that cooperates with the second clip.

5. The anti-pull-off anti-counterfeiting bottle cap according to claim 4, characterized in that: The number of the first buckles is two, and they are symmetrically arranged along the axis of the bottle mouth. The number of the second buckles is two, and they are symmetrically arranged along the axis of the bottle mouth.

6. The anti-pull-off anti-counterfeiting bottle cap according to claim 4 or 5, characterized in that: The first clip includes three first protrusions arranged at intervals, and correspondingly, the first slot includes three first through holes that can accommodate the first protrusions. When the first clip is engaged with the first slot, the three first protrusions are respectively located in the three first through holes; the second clip includes a second protrusion, and correspondingly, the second slot includes a second through hole that can accommodate the second protrusion. When the second clip is engaged with the second slot, the second protrusion is located in the second through hole.

7. The anti-counterfeiting bottle cap according to claim 1, characterized in that: The breakable part is arranged at the bottom of the bottle mouth, and the breakable part includes a third buckle. The top of the bottle neck is provided with a third slot that cooperates with the third buckle. The bottom of the bottle mouth is provided with an insert block, and correspondingly, the top of the bottle neck is provided with a slot.

8. The anti-pull-off anti-counterfeiting bottle cap according to claim 7, characterized in that: The number of the third buckles is 2, and they are symmetrically arranged along the axis of the bottle mouth. The number of the insert blocks is 2, and they are symmetrically arranged along the axis of the bottle mouth.

9. The anti-pull-off anti-counterfeiting bottle cap according to claim 7 or 8, characterized in that: The third buckle includes a third protrusion, and correspondingly, the third slot includes a third through hole capable of accommodating the third protrusion. When the third buckle is engaged with the third slot, the third protrusion is located in the third through hole.

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