Easily-processed multifunctional safety bottle cap

By introducing tearable ribs and cutting teeth into the bottle cap, the problems of difficult-to-distinguish bottle caps and safety issues are solved, simplifying production, improving efficiency and safety, and making it suitable for a variety of bottled products.

CN224171541UActive Publication Date: 2026-04-28程姜仁
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
程姜仁
Filing Date
2025-06-14
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing plastic bottle caps are difficult to distinguish when opening and closing, and are easily confused in multi-person situations, making it impossible to confirm whether the bottle has been opened by someone else, which poses safety risks and waste issues.

Method used

A multifunctional safety bottle cap was designed, featuring a double-layer folding structure with a fixing ring and tearable ribs. Through the cooperation of cutting teeth and blades, the blades are prevented from being damaged during the first opening, and a mark is formed when the bottle is opened a second time, simplifying the production process and improving safety.

Benefits of technology

It simplifies the bottle cap production process, improves production efficiency, reduces costs, ensures bottle safety and personalized labeling, and reduces resource waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an easy-to-process multifunctional safety bottle cap which comprises a bottle cap body and a fixing ring, a plurality of blades are arranged on the inner layer of the fixing ring, and the ends of the blades abut against the inner wall of the bottle cap body. A plurality of cutting teeth are arranged on the inner wall of the bottle cap body, a first bevel edge is arranged on one side of each cutting tooth, and a cutting part is arranged on the other side of each cutting tooth; a tearable rib is wound in the bottle cap body, and when the bottle cap body rotates anticlockwise and the rib is kept, the rib does not scratch the slender connecting rod of the blade anticlockwise; and in the state that the ribs are torn off, the cutting parts of the cutting teeth can cut off the slender connecting rods of the blades. The tearable ribs are arranged on the outer sides of the cutting teeth, and the cutting portions of the cutting teeth are shielded by the ribs, so that when the bottle cap is opened for the first time, the blades are prevented from being damaged by the cutting portions of the cutting teeth, the production process is simplified, and the production process is simpler and more convenient.
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Description

Technical Field

[0001] This utility model relates to the field of bottle cap technology, and in particular to an easy-to-process multifunctional safety bottle cap. Background Technology

[0002] Currently, plastic bottles are the most common containers for liquids. These bottles are sealed with caps, which consist of a cap body and a retaining ring connected by a tiny connection point. To open, the cap body is turned counter-clockwise to break the connection point; to close, it is turned clockwise. However, the break at this connection point is extremely subtle, making the closed cap appear almost indistinguishable from an unopened bottle. Furthermore, in shared settings, if multiple people are drinking the same beverage, the opened bottles can easily become confused when placed back on the table. Users, unable to identify the bottle, are more likely to unnecessarily touch unopened beverages; they also cannot confirm the bottle's ownership from the cap's condition, or even know if the bottle has been tampered with (e.g., accidentally drunk from or having foreign objects added), posing a safety risk and potentially leading to discarded drinks and unnecessary waste.

[0003] The applicant previously applied for a multifunctional safety bottle cap and its usage method (publication number CN113772259A), including a bottle cap body and a fixing ring. The fixing ring has a double-layer structure. The outer layer of the fixing ring is connected to the lower edge of the bottle cap body through several dot-shaped connecting blocks. The inner layer of the fixing ring has multiple thin blades, the ends of which abut against the inner wall of the bottle cap body. The blades have an overall arched structure, and all the blades are stacked in a counterclockwise direction to form a ring. The inner wall of the bottle cap body has multiple cutting teeth, which are located on the outside of the blades. The side of the cutting teeth facing the blades is a sloping surface. One end of the sloping surface is attached to the inner wall of the bottle cap body, and the other end extends inward in a counterclockwise direction with a cutting part. When the bottle cap body is separated from the fixing ring, all the blades on the fixing ring spread outward, and the spread-out blades can be pressed into the bottle cap body. This structure allows the blades to be set as personalized marks for repeatedly marking one's own bottle, ensuring safety during use. However, since all the blades need to be stacked in a counterclockwise direction to form a ring, this step is quite difficult, time-consuming, and labor-intensive, resulting in low bottle cap production efficiency. Utility Model Content

[0004] To address the aforementioned issues, this invention provides an easy-to-process, multi-functional safety bottle cap that can not only create personalized markings and ensure safety, but also reduce processing difficulty and improve production efficiency.

[0005] Therefore, the technical solution of this utility model is: an easy-to-process multifunctional safety bottle cap, including a bottle cap body and a fixing ring. The fixing ring has a double-layer folding structure, including an outer fixing ring and an inner fixing ring folded inward. The outer fixing ring is connected to the lower edge of the bottle cap body through a dotted connection. The inner fixing ring is provided with multiple blades, the ends of which abut against the inner wall of the bottle cap body. The inner wall of the bottle cap body is provided with multiple triangular pyramidal cutting teeth, which are located between the blades and the inner wall of the bottle cap body. The highest point of the protruding cutting teeth faces the blades, and the highest point extends clockwise along the bottle cap body to form a first inclined side, and extends counterclockwise to form a cutting part.

[0006] The blade is set in the inner layer of the fixing ring by a slender connecting rod; a tearable rib is wrapped around the inside of the bottle cap body, and the rib is connected in a dotted manner to the outer contour of the first inclined side of all the cutting teeth and the inner wall of the bottle cap body.

[0007] The rib has a symmetrical first inclined section and a second inclined section. The first inclined section is connected to the first inclined side of the cutting tooth. The intersection of the first inclined section and the second inclined section is located outside the highest point of the cutting tooth. The second inclined section of the rib forms a triangular hollow structure with the cutting part and the inner wall of the bottle cap body. A baffle is provided on the triangular hollow structure.

[0008] When the bottle cap body rotates counterclockwise, there are two states: retaining the ribs or tearing off the ribs; in the state where the ribs are retained, the second inclined section of the ribs passes counterclockwise across the slender connecting rod of the blade; in the state where the ribs are torn off, the cutting part of the cutting teeth can hook onto and destroy the slender connecting rod of the blade.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: when the bottle cap body rotates clockwise, the first inclined segment of the rib or the first inclined edge of the cutting tooth passes clockwise across the slender connecting rod of the blade.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the cutting part is provided with an arc-shaped cutting opening, and the arc-shaped cutting opening is positioned opposite to the slender connecting rod of the blade.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: when the bottle cap body is separated from the fixing ring, all the blades on the fixing ring spread outwards, and the spread-out blades can be pressed back into the bottle cap body.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: all the blades on the fixing ring spread outward to form an opening mark; the blades that are pressed back into the bottle cap body after spreading out form a personalized mark.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme: all blades have the same shape, size, and color, or the blades have different shapes, sizes, and colors; the blades have numbers or patterns.

[0014] Initially, the bottle cap has internal ribs, and the cut area is blocked by the second inclined section of the ribs and the baffle. Upon initial opening, rotating the bottle cap counter-clockwise causes the second inclined section of the ribs to pass over the surface of the slender connecting rod of the blade without damaging it. After opening, the blade will spread outwards, forming an opening indicator. Resealing can proceed in several ways:

[0015] Scenario 1: If the user is using the product in a safe environment or alone (where the marking function is unnecessary), the cutting teeth function can be omitted. In this case, simply rotate the cap back to press several blades back into the cap as personalized markings. Rotating the cap clockwise causes the first inclined segment of the rib to glide clockwise across the surface of the slender connecting rod of the re-pressed blade without damaging it. When opening the bottle again, rotating the cap counterclockwise causes the second inclined segment of the rib to glide across the surface of the slender connecting rod of the re-pressed blade without damaging it.

[0016] Scenario 2: For safety reasons, users can choose to use the cutting teeth function when using the bottle in public environments or in groups. In this case, the ribs inside the bottle cap need to be torn off, along with the retaining plate fixed to the ribs, so that the cutting teeth are fully exposed. Rotating the bottle cap back will press several blades back into the bottle cap as a personalized identifier. Rotating the bottle cap clockwise will cause the first bevel of the cutting teeth to smoothly glide across the slender connecting rod of the re-pressed blade, without damaging the blade. When opening again, rotating the bottle cap counterclockwise will cause the arc-shaped cutting edge on the cutting part of the cutting teeth to directly hook and break the slender connecting rod of the blade, thus damaging the blade and forming a secondary opening identifier. This allows users to determine whether the bottle cap has been opened by someone else, ensuring safety.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] A tearable rib is provided on the outside of the cutting teeth. The second inclined section of the rib and the baffle shield the cutting part of the cutting teeth. When the bottle cap is first opened, the second inclined section of the rib contacts the slender connecting rod of the blade, preventing the cutting part of the cutting teeth from damaging the blade and ensuring that the blade remains intact during the initial opening. At the same time, it avoids the complex blade stacking structure used to prevent damage to the blade during the initial opening, simplifies the production process, makes the production process more convenient, further reduces the production difficulty, helps to improve overall production efficiency, and also helps to reduce production costs and enhance the product's market competitiveness.

[0019] The bottle cap has two states: with the ribs intact and with the ribs removed. Users can choose whether to use the cutting tooth function according to their actual needs. If the cutting tooth function is not needed, simply rotate the bottle cap normally without damaging the blades. If it is necessary to clearly mark whether the bottle has been opened a second time, the ribs can be removed. The operation is simple and convenient, meeting the diverse needs of users for bottle status indication in different scenarios.

[0020] The inner layer of the bottle cap retaining ring can be customized with different shapes, sizes, and colors, or numbers or patterns can be set on the blades. Users can press several blades back into the bottle cap as a personalized identifier, making it easy for users to quickly identify their bottled beverage in multi-person situations. This effectively avoids confusion with others' water / drinks, reduces the occurrence of mis-taking, and thus avoids water waste caused by mis-taking and subsequent disposal.

[0021] When the bottle cap body separates from the retaining ring, all the blades on the retaining ring spread outwards, forming a clear opening mark, allowing users to quickly and intuitively identify whether the bottle has been opened for the first time and understand the initial state of the bottle.

[0022] This bottle cap is applicable to any bottled product, including but not limited to beverages, food, and pharmaceuticals. Its structure can improve product safety, reduce resource waste, and expand the application range of products, making it highly practical. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the initial structure of the present invention after processing;

[0024] Figure 2 This is a schematic diagram of the structure of this utility model when it is unopened;

[0025] Figure 3 A schematic diagram of the structure of this utility model after initial opening;

[0026] Figure 4 This utility model is illustrated in the structural diagram of the re-opening process after the reinforcing strips have been torn off.

[0027] Figure 5 A bottom view of the bottle cap body of this utility model with the ribs retained;

[0028] Figure 6 for Figure 5 A magnified view of a portion of the image;

[0029] Figure 7 This is a bottom view of the bottle cap body of this utility model with the reinforcing ribs torn off;

[0030] Figure 8 for Figure 7 A magnified view of a portion of the image.

[0031] The components in the diagram are labeled as follows: bottle cap body 1, cutting teeth 11, ramp surface 12, cutting part 13, arc-shaped cutting opening 14, fixing ring 2, outer layer of fixing ring 21, inner layer of fixing ring 22, blade 23, slender connecting rod 24, connecting line 3, rib 4, second connecting line 41, first inclined section 42, second inclined section 43, baffle 5. Detailed Implementation

[0032] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0034] See the attached drawings. The bottle cap structure with identification function described in this embodiment includes a bottle cap body 1 and a fixing ring 2. The bottle cap body 1 and the fixing ring 2 can be integrally formed. The fixing ring 2 has a double-layer folding structure, including an outer fixing ring layer and an inner fixing ring layer. The inner and outer layers of the fixing ring can be integrally formed, and then the inner layer is folded inward to form the shape. The outer fixing ring 21 is connected to the lower edge of the bottle cap body 1 by a dotted connection to form a easily breakable connecting line 3. When the bottle cap body 1 is opened, it can be separated from the fixing ring 2.

[0035] To facilitate folding, the inner layer 22 of the fixing ring can be multiple independent sheet-like structures. Each sheet-like structure is then connected to a thin blade 23 by a slender connecting rod 24. The slender connecting rod 24 is higher than the connection position between the outer layer 21 of the fixing ring and the bottle cap body 1, so that the blade 23 can abut against the inner wall of the bottle cap body 1. When the bottle cap body 1 and the fixing ring 2 are separated, the blade 23 has room to spread outward.

[0036] A gap can be set between adjacent blades 23, allowing them to be separated. The number, shape, size, and color of the blades 23 can all be set according to requirements. Figure 1(The number and shape of the leaves shown are for illustrative purposes only.) The leaves can be simple geometric shapes, such as triangles or rhombuses, with the position of the pressed leaf serving as a marker. The leaves can also be various different shapes, such as zodiac animals, flowers, etc., in different shapes and colors. This allows for a wider variety of personalized markings for users, and factories can use different bottle caps when producing the same product. The bottle caps look identical on the outside, but the shapes of the leaves inside are different, creating a blind box effect. Outsiders will not know the shape or color of the pressed leaf, enhancing both security and fun. Furthermore, random numbers or letters can be added to the inside of the leaves. When the bottle cap is opened and the leaves are flipped outwards, the numbers, letters, or other shapes on the leaves are visible. Therefore, only the person opening the cap for the first time will know these numbers or patterns. Similarly, when resealing, only the user will know the information about the leaf pressed into the bottle cap, further enhancing security.

[0037] The inner wall of the bottle cap body 1 is provided with an internal thread structure, and below the internal thread structure are multiple cutting teeth 11. The cutting teeth 11 are triangular prism structures, similar to a pyramid shape. The cutting teeth 11 are located between the blade 23 and the inner wall of the bottle cap body 1, and the highest point of the protrusion of the cutting teeth 11 faces the blade 23. The highest point forms a first inclined side 12 in the clockwise direction towards the bottle cap body 1, and a cutting part 13 in the counterclockwise direction. The cutting part 13 is provided with an arc-shaped cutting opening 14. The arc-shaped cutting opening 14 is positioned opposite to the slender connecting rod 24 of the blade 23, and can hook and cut the slender connecting rod 24 of the blade.

[0038] When the bottle cap body 1 separates from the fixing ring 2, all the blades 23 on the fixing ring 2 spread outwards, and the spread-out blades 23 can be selectively pressed back into the bottle cap body 1. The spread-out blades 23 on the fixing ring 2 form an opening mark; the blades 23 that are pressed back into the bottle cap body 1 after spreading outwards form a personalized mark.

[0039] A tearable rib 4 is wound around the inside of the bottle cap body 1. The rib 4 is connected to the outer contour of the first inclined side of all the cutting teeth 11 and the inner wall of the bottle cap body 1 in a point-like manner, forming an easy-to-tear second connecting line 41. The rib 4 is provided with a symmetrical first inclined section 42 and a second inclined section 43. The first inclined section 42 is connected to the first inclined side 12 of the cutting teeth 11. The intersection of the first inclined section 42 and the second inclined section 43 is located outside the highest point of the cutting teeth 11. The second inclined section 43 of the rib 4 forms a triangular hollow structure with the cutting part 11 and the inner wall of the bottle cap body 1. The triangular hollow structure is provided with a baffle 5, which is a triangular thin sheet used to fill the gap.

[0040] The rib 4 and the baffle 5 are designed to be tearable, and customers can choose whether to retain the rib according to their usage needs.

[0041] If the rib 4 is retained, when the bottle cap body 1 is screwed back clockwise, the first inclined section of the rib passes clockwise across the slender connecting rod of the blade and will not cut the blade 23; when the bottle cap body 1 is rotated counterclockwise to open, the second inclined section of the rib passes counterclockwise across the slender connecting rod of the blade and will also not cut the blade 23.

[0042] If the reinforcing bar 4 is torn off, when the bottle cap body 1 is screwed back clockwise, the first bevel of the cutting tooth will pass over the slender connecting rod of the blade clockwise without cutting the blade 23; when the bottle cap body 1 is rotated counterclockwise to open, the arc-shaped cutting opening 14 on the cutting part 13 can cut the slender connecting rod 24 of the blade 23, thereby destroying the blade 23 and forming a secondary opening mark.

[0043] In its initial state, the bottle cap body 1 has ribs 4 inside, and the cutting part 13 is also blocked by the second inclined section of the ribs 4 and the baffle 5. When opening for the first time, the bottle cap body 1 is rotated counterclockwise, and the second inclined section 43 of the ribs 4 passes over the surface of the slender connecting rod 24 of the blade 23 without damaging the blade 23. After opening, the blade 23 will spread outward to form an opening mark. When resealing, the following situations can be considered:

[0044] Scenario 1: If the user is using the product in a safe environment or alone (where the marking function is not required), the cutting teeth 11 function can be omitted. In this case, simply rotate the bottle cap body 1 back to press the blades 23 back into the bottle cap body 1 as personalized markings. When the bottle cap body 1 is rotated clockwise, the first inclined segment 42 of the rib 4 passes clockwise across the surface of the re-pressed slender connecting rod 24 without damaging the blades 23. When opening the bottle cap again, the bottle cap body 1 is rotated counterclockwise, and the second inclined segment 43 of the rib 4 passes across the surface of the re-pressed blades 23 without damaging the blades 23.

[0045] Scenario 2: If the user is using the product in a public environment or in a group setting, for safety reasons, the cutting teeth function can be selected. In this case, the ribs 4 inside the bottle cap body 1 need to be torn off, and the baffles 5 fixed to the ribs 4 should also be torn off, so that the cutting teeth 11 are fully exposed. Rotating the bottle cap body 1 clockwise will press several blades 23 back into the bottle cap body as a personalized mark. When the bottle cap is rotated clockwise, the first bevel 12 of the cutting teeth 11 smoothly passes over the slender connecting rod 24 of the re-pressed blades 23, without damaging the blades 23. When opening the bottle cap again, rotating the bottle cap body 1 counterclockwise will allow the arc-shaped cutting edge 14 of the cutting part 13 on the cutting teeth 11 to directly hook and break the slender connecting rod 24 of the blades 23, thereby damaging the blades 23 and forming a secondary opening mark, which allows the user to determine whether the bottle cap has been opened by someone else, ensuring safety.

[0046] The bottle cap in this embodiment has a clear structural difference between its unopened and opened states, ensuring that users can quickly and intuitively distinguish the bottle's condition. The blades on the cap can be set as personalized identifiers, allowing users to mark their own bottles multiple times to avoid accidental disposal and save water resources. The blades on the cap can also serve as a barrier during resealing, allowing users to clearly determine whether the bottle has been opened by someone else, ensuring safety. The cap is applicable to any bottled product, has a wide range of uses, greatly improves the safety of various bottled products, and reduces resource waste.

[0047] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A multifunctional safety bottle cap that is easy to process, comprising a bottle cap body and a retaining ring, wherein the retaining ring has a double-layer folding structure, comprising an outer retaining ring and an inner retaining ring folded inward, the outer retaining ring being connected to the lower edge of the bottle cap body by a dotted connection; the inner retaining ring is provided with multiple blades, the ends of which abut against the inner wall of the bottle cap body; the inner wall of the bottle cap body is provided with multiple triangular pyramidal cutting teeth, the cutting teeth being located between the blades and the inner wall of the bottle cap body; the highest point of the protruding cutting teeth faces the blades, the highest point extends clockwise along the bottle cap body to form a first inclined side, and extends counterclockwise to form a cutting part; Its features are: The blade is set in the inner layer of the fixing ring by a slender connecting rod; a tearable rib is wrapped around the inside of the bottle cap body, and the rib is connected in a dotted manner to the outer contour of the first inclined side of all the cutting teeth and the inner wall of the bottle cap body. The rib has a symmetrical first inclined section and a second inclined section. The first inclined section is connected to the first inclined side of the cutting tooth. The intersection of the first inclined section and the second inclined section is located outside the highest point of the cutting tooth. The second inclined section of the rib forms a triangular hollow structure with the cutting part and the inner wall of the bottle cap body. A baffle is provided on the triangular hollow structure. When the bottle cap body rotates counterclockwise, there are two states: retaining the ribs or tearing off the ribs; in the state where the ribs are retained, the second inclined section of the ribs passes counterclockwise across the slender connecting rod of the blade; in the state where the ribs are torn off, the cutting part of the cutting teeth can hook onto and destroy the slender connecting rod of the blade.

2. The easy-to-process multifunctional safety bottle cap as described in claim 1, characterized in that: When the bottle cap body rotates clockwise, the first inclined segment of the rib or the first inclined edge of the cutting tooth passes clockwise across the slender connecting rod of the blade.

3. The easy-to-process multifunctional safety bottle cap as described in claim 1, characterized in that: The cutting section is provided with an arc-shaped cutting opening, which is positioned opposite to the slender connecting rod of the blade.

4. The easy-to-process multifunctional safety bottle cap as described in claim 1, characterized in that: When the bottle cap body separates from the fixing ring, all the blades on the fixing ring spread outwards, and the spread-out blades can be pressed into the bottle cap body.

5. The easy-to-process multifunctional safety bottle cap as described in claim 1, characterized in that: All the blades on the fixing ring spread outwards to form an opening mark; the blades that are pressed back into the bottle cap body after spreading out form a personalized mark.

6. The easy-to-process multifunctional safety bottle cap as described in claim 1, characterized in that: All the blades are the same shape, size and color, or the blades are different shapes, sizes and colors; the blades are decorated with numbers or patterns.

Citation Information

Patent Citations

  • Multifunctional safety bottle cap and using method thereof

    CN113772259A