Anti-fake bottle cap

Abstract

The anti-fake bottle cap is characterized in that an inner cap is arranged on the upper section of a bottle opening in a sleeving mode, and an outer sleeve is arranged on the lower section of the bottle opening in a sleeving mode; the middle cover is rotatably mounted on the outer wall of the inner cover, and the outer cover sleeves the outer wall of the middle cover and drives the middle cover to rotate; a plurality of protruding clamping tables are arranged on the radial outer wall of the inner cover, and a plurality of linkage cavities for containing the clamping tables are formed in the radial outer wall of the middle cover. The linkage cavity is sequentially provided with a containing part, a first rotating part and a second rotating part which communicate with one another in the first circumferential direction. The heights of the storage part, the first rotating part and the second rotating part are sequentially reduced in the first circumferential direction; when the clamping table is located in the containing part, the bottom of the outer cover abuts against the top of the outer sleeve. By means of the inner cap and the middle cap, the situation that the bottle cap cannot be restored and a physical anti-fake gap appears when the bottle cap is opened by a small angle is achieved, the vertical height of the first channel and the vertical height of the second channel are both smaller than the vertical height of the stopping part, and the design effectively prevents the illegal behavior that lawbreakers make a profit after opening a certain angle and then rotating and resetting are conducted.

Description

Technical Field

[0001] The present application relates to the technical field of bottle caps, and in particular to an anti-counterfeiting bottle cap. Background Art

[0002] For companies involved in the alcohol, perfume, and high-end health supplement industries, anti-counterfeiting of packaging bottles is crucial. For example, bottles with inadequate security can easily be recycled into counterfeit liquor. This floods the market with low-priced counterfeit liquor, disrupting the authentic market and significantly damaging the reputation of alcohol manufacturers, hindering their development. Furthermore, consuming counterfeit liquor can cause significant harm to health, especially when mixed with industrial alcohol, which can be life-threatening.

[0003] Currently, many bottle caps on the market are affixed with anti-counterfeiting labels. Their purpose is to indicate that the bottle cap has been opened if the label breaks when the consumer opens it. However, many products have a simple structure and function, resulting in poor anti-counterfeiting effectiveness. In some cases, the anti-counterfeiting label may break but the bottle cap may not open properly, resulting in a poor consumer experience and negative impact on the manufacturer. The present invention is based on a novel design that prevents the bottle cap from being opened at a small angle, creating a physical anti-counterfeiting gap of a certain height. Summary of the Invention

[0004] Based on this, it is necessary to provide an anti-counterfeiting bottle cap to address the problems that traditional bottle cap products have a single structure and function, a general anti-counterfeiting effect, and there is a situation where the anti-counterfeiting label is damaged but the bottle cap cannot be opened normally.

[0005] According to one aspect of the present application, an anti-counterfeiting bottle cap is provided for the bottle mouth, comprising: an inner cap and an outer cap, wherein the inner cap is sleeved on the upper section of the bottle mouth, and the outer cap is sleeved on the lower section of the bottle mouth; a middle cap, wherein the middle cap is rotatably mounted on the outer wall of the inner cap; an outer cap, wherein the outer cap is sleeved on the outer wall of the middle cap and drives the middle cap to rotate; a plurality of raised card platforms are provided on the radial outer wall of the inner cap, and a plurality of linkage cavities for accommodating the card platforms are opened on the radial outer wall of the middle cap; the linkage cavities are sequentially provided with a plurality of protruding card platforms along the first circumference. A storage portion, a first convolute portion and a second convolute portion are interconnected; the heights of the storage portion, the first convolute portion and the second convolute portion decrease successively along the first circumferential direction; when the card platform is located in the storage portion, the bottom of the outer cover abuts against the top of the outer coat; when the card platform is located in the first convolute portion, the bottom of the outer cover is separated from the top of the outer coat and the anti-counterfeiting gap is H1; when the card platform is located in the second convolute portion, the anti-counterfeiting gap between the bottom of the outer cover and the top of the outer coat increases from H1 to H2.

[0006] In one embodiment, the card table includes a stop portion and an extrusion portion, and the extrusion portion is located at one end of the stop portion along the first circumferential direction; the end of the extrusion portion away from the stop portion is provided with two sliding surfaces opposite to each other along the direction from the outer cover to the outer sleeve, and the distance between the two sliding surfaces gradually decreases along the first circumferential direction.

[0007] In one embodiment, a first claw is further provided between the storage portion and the first rotating portion, and the first claw is composed of two first clamping arms that are opposite to each other along the direction from the outer cover to the outer sleeve; an inclined first slope is provided on the outer wall of the first clamping arm away from the first circumferential direction, and the end of the first slope located above and away from the storage portion is inclined toward the direction of gravity relative to the end close to the storage portion, and the end of the first slope located below and away from the storage portion is inclined away from the direction of gravity relative to the end close to the storage portion.

[0008] In one embodiment, a second claw is further provided between the first rotating part and the second rotating part, and the second claw is composed of two second clamping arms that are opposite to each other along the direction from the outer cover to the outer sleeve; an inclined second slope is provided on the outer wall of the second clamping arm away from the first circumferential direction, and the end of the second slope located above and away from the first rotating part is inclined toward the direction of gravity relative to the end close to the first rotating part, and the end of the second slope located below and away from the first rotating part is inclined away from the direction of gravity relative to the end close to the first rotating part.

[0009] In one embodiment, the storage portion includes a first positioning surface, and when the card table is located in the storage portion, the stop portion abuts against the first positioning surface; the first rotating portion includes a second positioning surface, and when the card table is located in the first rotating portion, the stop portion abuts against the second positioning surface; the second rotating portion includes a third positioning surface, and when the card table is located in the second rotating portion, the stop portion abuts against the third positioning surface.

[0010] In one embodiment, the heights of the first positioning surface, the second positioning surface, and the third positioning surface decrease sequentially along the first circumferential direction.

[0011] In one embodiment, a first channel is formed between the first clamping arms, and a height of the first channel along the direction from the outer cover to the outer sleeve is smaller than a height of the stop portion along the direction from the outer cover to the outer sleeve.

[0012] In one embodiment, a second channel is formed between the second clamping arms, and a height of the second channel along the direction from the outer cover to the outer sleeve is smaller than a height of the stop portion along the direction from the outer cover to the outer sleeve.

[0013] In one embodiment, a first groove for accommodating the first clamping arm is formed on the inner wall of the first rotating portion.

[0014] In one embodiment, a second groove for accommodating the second clamping arm is formed on the inner wall of the second rotating portion.

[0015] In one embodiment, a locking portion for accommodating the extrusion portion is provided on an inner wall of the second rotating portion facing one end in the first circumferential direction.

[0016] This application has the following beneficial effects:

[0017] Through the coordinated structure of the inner and middle caps, this application achieves a physical anti-counterfeiting gap of a certain height, preventing the bottle cap from being unable to recover when opened at a small angle. Furthermore, the two sets of first clamping arms increase the opening torque of the outer cap at its initial opening position, preventing accidental opening caused by slight twisting. The vertical heights of the first and second channels are both less than the vertical height of the stop. This design effectively prevents unscrupulous individuals from opening the bottle cap to a certain angle and then reversing to reset it, thereby profiting from complaints against the manufacturer. This design further enhances the practicality and safety of the anti-counterfeiting bottle cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a partial cross-sectional view of an embodiment of the present application.

[0019] Figure 2 This is a three-dimensional structural diagram of the inner cover in one embodiment of the present application.

[0020] Figure 3 This is a three-dimensional structural diagram of the middle cover in one embodiment of the present application.

[0021] Figure 4 for Figure 3 A magnified view of the local structure at point A.

[0022] Figure 5 for Figure 3 A magnified view of the local structure at point B in the middle.

[0023] Figure 6 The three-dimensional structure of the inner cover and the middle cover in one embodiment of the present application Figure 1 .

[0024] Figure 7 The three-dimensional structure of the outer cover and the outer shell in one embodiment of the present application Figure 1 .

[0025] Figure 8 The three-dimensional structure of the inner cover and the middle cover in one embodiment of the present application Figure 2 .

[0026] Figure 9The three-dimensional structure of the outer cover and the outer shell in one embodiment of the present application Figure 2 .

[0027] Figure 10 The three-dimensional structure of the inner cover and the middle cover in one embodiment of the present application Figure 3 .

[0028] Figure 11 The three-dimensional structure of the outer cover and the outer shell in one embodiment of the present application Figure 3 .

[0029] Description of reference numerals:

[0030] 1. Outer cover;

[0031] 2. Middle cover; 201. Linkage cavity; 202. Receiving portion; 203. First rotating portion; 204. Second rotating portion; 205. First clamping claw; 206. Second clamping claw; 207. First inclined surface; 208. First channel; 209. First positioning surface; 210. Second positioning surface; 211. Second clamping arm; 212. Second inclined surface; 213. Second channel; 214. Locking portion; 215. Third positioning surface; 216. First groove; 217. Second groove; 218. First clamping arm;

[0032] 3. Inner cover; 301. Card table; 302. Stopper; 303. Extrusion part; 304. Sliding surface;

[0033] 4. Coat. DETAILED DESCRIPTION

[0034] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0035] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0036] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0037] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0040] See Figures 1-11 , Figure 1-Figure 3The overall structure diagram of the anti-counterfeiting bottle cap of an embodiment of the present application is shown. The device is used for the bottle mouth, including an inner cover 3 and an outer cover 4, the inner cover 3 is sleeved on the upper section of the bottle mouth, and the outer cover 4 is sleeved on the lower section of the bottle mouth; the middle cover 2 is rotatably mounted on the outer wall of the inner cover 3; the outer cover 1 is sleeved on the outer wall of the middle cover 2 and drives the middle cover 2 to rotate; a plurality of protruding card platforms 301 are provided on the radial outer wall of the inner cover 3, and a plurality of linkage cavities 201 for accommodating the card platforms 301 are opened on the radial outer wall of the middle cover 2; the linkage cavities 201 are sequentially provided with mutually connected card platforms along the first circumference. the storage portion 202, the first convolute portion 203 and the second convolute portion 204; the heights of the storage portion 202, the first convolute portion 203 and the second convolute portion 204 decrease successively along the first circumferential direction; when the card platform 301 is located in the storage portion 202, the bottom of the outer cover 1 abuts against the top of the outer coat 4; when the card platform 301 is located in the first convolute portion 203, the bottom of the outer cover 1 is separated from the top of the outer coat 4 and the anti-counterfeiting gap is H1; when the card platform 301 is located in the second convolute portion 204, the anti-counterfeiting gap between the bottom of the outer cover 1 and the top of the outer coat 4 increases from H1 to H2.

[0041] In some embodiments, when the device is in its initial state, the card platform 301 is located in the storage portion 202. At this time, the bottom of the outer cover 1 abuts the top of the outer cover 4 and the anti-counterfeiting label is intact. When the outer cover 1 rotates away from the first circumferential direction to the centering cover 2, the inner cover 3 is stationary but rotates relative to the middle cover 2 along the first circumferential direction. At this time, the card platform 301 enters the first rotating portion 203 and the second rotating portion 204 in sequence. After the card platform 301 enters the first rotating portion 203, the bottom of the card platform 301 abuts the second positioning surface 210, the bottom of the outer cover 1 is separated from the top of the outer cover 4, and the anti-counterfeiting gap is H1. At this time, the label is torn both circumferentially and vertically. After the card platform 301 enters the second rotating portion 204, the bottom of the card platform 301 abuts the third positioning surface 215, and the anti-counterfeiting gap increases from H1 to H2. At this time, the label continues to be torn both circumferentially and vertically and cannot be restored to its original position.

[0042] See Figure 2-Figure 3 The card table 301 includes a stop portion 302 and an extrusion portion 303, and the extrusion portion 303 is located at one end of the stop portion 302 along the first circumferential direction; the end of the extrusion portion 303 away from the stop portion 302 is provided with two sliding surfaces 304 opposite to each other along the direction from the outer cover 1 to the outer sleeve 4, and the distance between the two sliding surfaces 304 gradually decreases along the first circumferential direction.

[0043] In some embodiments, when the outer cover 1 drives the middle cover 2 to rotate, the platform 301 on the inner cover 3 will enter the first rotating part 203 and the second rotating part 204 in sequence from the storage part 202. In this process, in order to reduce the resistance of the platform 301 squeezing the first claw 205 and the second claw 206, an inclined sliding surface 304 structure is designed.

[0044] See Figure 4-Figure 5 A first claw 205 is also provided between the storage portion 202 and the first rotating portion 203, and the first claw 205 includes two opposite first clamping arms 218; an inclined first slope 207 is provided on the outer wall of the first clamping arm 218 away from the first circumferential direction, and the end of the first slope 207 located above and away from the storage portion 202 is inclined toward the direction of gravity relative to the end close to the storage portion 202, and the end of the first slope 207 located below and away from the storage portion 202 is inclined away from the direction of gravity relative to the end close to the storage portion 202.

[0045] In some embodiments, since a relative sliding surface 304 is provided on the extrusion portion 303, when the card platform 301 passes through the first card arm 218 and enters the first rotating portion 203 from the storage portion 202, in order to improve the degree of fit and facilitate the extrusion portion 303 to move the first card arm 218 to the upper and lower sides, a first inclined surface 207 structure is designed.

[0046] See Figure 3 and Figure 5 A second claw 206 is also provided between the first rotating part 203 and the second rotating part 204, and the second claw 206 includes two opposite second clamping arms 211; an inclined second slope 212 is provided on the outer wall of the second clamping arm 211 away from the first circumference, and the end of the second slope 212 located above and away from the first rotating part 203 is inclined toward the direction of gravity relative to the end close to the first rotating part 203, and the end of the second slope 212 located below and away from the first rotating part 203 is inclined away from the direction of gravity relative to the end close to the first rotating part 203.

[0047] In some embodiments, since a relative sliding surface 304 is provided on the extrusion portion 303, when the card platform 301 passes through the second card arm 211 and enters the second rotating portion 203 from the first rotating portion 204, in order to improve the degree of fit and facilitate the extrusion portion 303 to move the second card arm 211 to the upper and lower sides, a second inclined surface 212 structure is designed.

[0048] See Figures 6-11 The storage portion 202 includes a first positioning surface 209. When the card table 301 is located in the storage portion 202, the stop portion 302 abuts against the first positioning surface 209; the first rotating portion 203 includes a second positioning surface 210. When the card table 301 is located in the first rotating portion 203, the stop portion 302 abuts against the second positioning surface 210; the second rotating portion 204 includes a third positioning surface 215. When the card table 301 is located in the second rotating portion 204, the stop portion 302 abuts against the third positioning surface 215.

[0049] In some embodiments, when the card platform 301 is located in the storage portion 202, the stop portion 302 abuts the first positioning surface 209 at the bottom to prevent accidental loosening, thereby limiting its vertical position. When the card platform 301 is located in the first rotating portion 203, the stop portion 302 abuts the second positioning surface 210 at the bottom to prevent accidental loosening, thereby limiting its vertical position. When the card platform 301 is located in the second rotating portion 204, the stop portion 302 abuts the third positioning surface 215 at the bottom to prevent accidental loosening, thereby limiting its vertical position.

[0050] See Figures 6-11 The heights of the first positioning surface 209 , the second positioning surface 210 and the third positioning surface 215 decrease sequentially along the first circumferential direction.

[0051] In some embodiments, anti-counterfeiting labels are affixed to the outer walls of the outer cap 1 and the outer sleeve 4. To prevent unauthorized opening and reuse of the bottle cap, a structure is designed to vertically stretch the outer cap 1 and the outer sleeve 4. When the outer cap 1 drives the middle cap 2 to rotate along the first circumferential direction, the clamping platform 301 will sequentially enter the first positioning surface 209, the second positioning surface 210, and the third positioning surface 215. Due to the height difference, the outer cap 1 drives the middle cap 2 to move upward while rotating, thereby separating from the outer sleeve 4 at the bottom.

[0052] In some embodiments, when the receiving portion 202 , the first rotating portion 203 , and the second rotating portion 204 are sequentially arranged in a clockwise direction, and the first claw 205 and the second claw 206 are inclined in the clockwise direction, the first circumferential direction is the clockwise direction.

[0053] In some embodiments, when the receiving portion 202 , the first rotating portion 203 and the second rotating portion 204 are sequentially arranged in a counterclockwise direction, and the first claw 205 and the second claw 206 are inclined in the counterclockwise direction, the first circumferential direction is the counterclockwise direction.

[0054] See Figure 4 and Figure 10 A first channel 208 is formed between the first clamping arms 218 , and a vertical height of the first channel 208 is smaller than a vertical height of the stop portion 302 .

[0055] In some embodiments, when the platform 301 on the inner cover 3 moves from the receiving portion 202 into the first rotating portion 203, it passes through the first channel 208 between the first clamping arms 218. After the platform 301 passes through the first channel 208, the first clamping arms 218 return to their original positions and limit the side of the stop portion 302 facing away from the first circumferential direction. To prevent the outer cover 1 from driving the platform 301 back into the receiving portion 202, the height of the first channel 208 is smaller than the height of the stop portion 302.

[0056] See Figure 5-Figure 6 A second channel 213 is formed between the second clamping arms 211 , and a vertical height of the second channel 213 is smaller than a vertical height of the stop portion 302 .

[0057] In some embodiments, when the platform 301 on the inner cover 3 moves from the first rotating portion 203 to the second rotating portion 204, it passes through the second channel 213 between the second clamping arms 211. After the platform 301 passes through the second channel 213, the second clamping arms 211 return to their original positions and limit the side of the stop portion 302 facing away from the first circumferential direction. To prevent the outer cover 1 from driving the platform 301 back to the first rotating portion 203, the height of the second channel 213 is smaller than the height of the stop portion 302.

[0058] In some embodiments, one end of the first clamp arm 218 and the second clamp arm 211 are connected to the inner cover 3, and the other end is a free end. After the clamping platform 301 is squeezed, the first clamp arm 218 and the second clamp arm 211 return to their original position by their own elastic force.

[0059] See Figure 4 、 Figure 6 and Figure 8 A first groove 216 for receiving the first clamping arm 218 is defined on the inner wall of the first rotating portion 203 .

[0060] In some embodiments, when the outer cover 1 drives the middle cover 2 to rotate, the clamping platform 301 on the inner cover 3 will enter the first rotating portion 203 from the storage portion 202. During this process, the clamping platform 301 will pass through between the first clamping arms 218.

[0061] In some embodiments, when the first clamping arms 218 are squeezed, the first clamping arms 218 on opposite sides will swing to the sides, with the upper first clamping arm 218 swinging upward and the lower first clamping arm 218 swinging downward. In order to accommodate the first clamping arms 218 and free up space for swinging, the opposing first grooves 216 are designed.

[0062] See Figure 5-Figure 6 A second groove 217 for receiving the second clamping arm 211 is defined on the inner wall of the second rotating portion 204 .

[0063] In some embodiments, when the outer cover 1 drives the middle cover 2 to rotate, the clamping platform 301 on the inner cover 3 will enter the second rotating portion 204 from the first rotating portion 203. During this process, the clamping platform 301 will pass through the second clamping arms 211.

[0064] In some embodiments, when the second clamping arms 211 are squeezed, the second clamping arms 211 on opposite sides will swing to the sides, with the upper second clamping arm 211 swinging upward and the lower second clamping arm 211 swinging downward. In order to store the second clamping arms 211 and make room for swinging, a second groove 217 is designed.

[0065] See Figure 3 A locking portion 214 for accommodating the extrusion portion 303 is provided on the inner wall of the second rotating portion 204 toward one end in the first circumferential direction.

[0066] In some embodiments, when the card platform 301 is located in the second convolute portion 204, the anti-counterfeiting gap between the bottom of the outer cover 1 and the top of the outer cover 4 increases from H1 to H2. To improve the packaging and stability, a locking portion 214 is provided on the inner wall of the second convolute portion 204 to accommodate the extrusion portion 303.

[0067] In some embodiments, the outer cover 1 and the middle cover 2 adopt a detachable connection structure, including but not limited to a snap-on, lock, plug-in and other structures.

[0068] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An anti-counterfeiting bottle cap for a bottle mouth, characterized in that: include: An inner cover (3), the inner cover (3) being sleeved on the upper section of the bottle mouth; A middle cover (2), the middle cover (2) being rotatably mounted on the outer wall of the inner cover (3); An outer cover (1), the outer cover (1) being sleeved on the outer wall of the middle cover (2) and driving the middle cover (2) to rotate; An outer sleeve (4), the outer sleeve (4) being sleeved on the lower section of the bottle mouth; Wherein, a plurality of protruding clamping platforms (301) are provided on the radial outer wall of the inner cover (3), and a plurality of linkage cavities (201) for accommodating the clamping platforms (301) are opened on the radial outer wall of the middle cover (2); The linkage cavity (201) is provided with a receiving portion (202), a first rotating portion (203), and a second rotating portion (204) that are interconnected in sequence along the first circumferential direction; the levels of the receiving portion (202), the first rotating portion (203), and the second rotating portion (204) decrease in sequence along the first circumferential direction; When the card platform (301) is located in the storage portion (202), the bottom of the outer cover (1) abuts against the top of the outer coat (4); when the card platform (301) is located in the first rotating portion (203), the bottom of the outer cover (1) is separated from the top of the outer coat (4) and the anti-counterfeiting gap is H1; when the card platform (301) is located in the second rotating portion (204), the anti-counterfeiting gap between the outer cover (1) and the outer coat (4) is H2, wherein H2 is greater than H1.

2. The anti-counterfeiting bottle cap according to claim 1, characterized in that: The clamping platform (301) comprises a stop portion (302) and an extrusion portion (303), wherein the extrusion portion (303) is located on the stop portion (302) and faces one end in the first circumferential direction; One end of the extrusion portion (303) facing away from the stop portion (302) is provided with two sliding surfaces (304) facing each other along the direction from the outer cover (1) to the outer sleeve (4), and the distance between the two sliding surfaces (304) gradually decreases along the first circumferential direction; A locking portion (214) for fitting with the sliding surface (304) is provided on the inner wall of the second rotating portion (204) facing one end in the first circumferential direction.

3. The anti-counterfeiting bottle cap according to claim 1 or 2, characterized in that: A first clamping claw (205) is further provided between the receiving portion (202) and the first rotating portion (203), and the first clamping claw (205) comprises two first clamping arms (218) that are opposite to each other along the direction from the outer cover (1) to the outer sleeve (4); An inclined first slope (207) is provided on the outer wall of the first clamping arm (218) away from the first circumferential direction, and the end of the first slope (207) located above and away from the storage portion (202) is inclined toward the direction of gravity relative to the end close to the storage portion (202), and the end of the first slope (207) located below and away from the storage portion (202) is inclined away from the direction of gravity relative to the end close to the storage portion (202).

4. The anti-counterfeiting bottle cap according to claim 1 or 2, characterized in that: A second clamping claw (206) is further provided between the first rotating portion (203) and the second rotating portion (204), and the second clamping claw (206) comprises two second clamping arms (211) that are opposite to each other along the direction from the outer cover (1) to the outer sleeve (4); An inclined second slope (212) is provided on the outer wall of the second clamping arm (211) away from the first circumferential direction, and the end of the second slope (212) located above and away from the first rotating part (203) is inclined toward the direction of gravity relative to the end close to the first rotating part (203), and the end of the second slope (212) located below and away from the first rotating part (203) is inclined away from the direction of gravity relative to the end close to the first rotating part (203).

5. The anti-counterfeiting bottle cap according to claim 1 or 2, characterized in that: The receiving portion (202) includes a first positioning surface (209), and when the card platform (301) is located in the receiving portion (202), the bottom of the stop portion (302) abuts against the first positioning surface (209); The first rotating portion (203) includes a second positioning surface (210), and when the clamping platform (301) is located on the first rotating portion (203), the bottom of the stop portion (302) abuts against the second positioning surface (210); The second rotating portion (204) includes a third positioning surface (215), and when the clamping platform (301) is located on the second rotating portion (204), the bottom of the stop portion (302) abuts against the third positioning surface (215).

6. The anti-counterfeiting bottle cap according to claim 5, characterized in that: The heights of the first positioning surface (209), the second positioning surface (210), and the third positioning surface (215) decrease sequentially along the first circumferential direction.

7. The anti-counterfeiting bottle cap according to claim 3, characterized in that: A first channel (208) is formed between the first clamping arms (218), and a height of the first channel (208) along the direction from the outer cover (1) to the outer jacket (4) is less than a height of the stop portion (302) along the direction from the outer cover (1) to the outer jacket (4).

8. The anti-counterfeiting bottle cap according to claim 4, characterized in that: A second channel (213) is formed between the second clamping arms (211), and the height of the second channel (213) along the direction from the outer cover (1) to the outer jacket (4) is smaller than the height of the stop portion (302) along the direction from the outer cover (1) to the outer jacket (4).

9. The anti-counterfeit bottle cap according to claim 3, characterized in that: A first groove (216) for accommodating the first clamping arm (218) is provided on the inner wall of the first rotating portion (203).

10. The anti-counterfeiting bottle cap according to claim 4, characterized in that: A second groove (217) for accommodating the second clamping arm (211) is provided on the inner wall of the second rotating portion (204).

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