Novel easily-screwed bottle cap and container comprising same
By designing a new type of easy-twist bottle cap, and utilizing the linkage between the primary and secondary bottle cap components, the problems of difficult-to-open bottle caps and easily disassembled and restored anti-theft rings are solved. This achieves an easy-to-open and irreversible anti-theft design, improving user experience and product anti-counterfeiting performance.
Patent Information
- Application Number
- CN202520022949.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-06
AI Technical Summary
Modern bottle caps, due to their anti-theft rings, are difficult to open and easy to disassemble and reassemble, leading to the production of counterfeit products and affecting food safety.
A novel easy-twist bottle cap has been designed. Through the linkage of the primary and secondary bottle cap components, and by utilizing a folding device and a broken thread, the anti-theft ring is made non-removable and reversible, ensuring that the bottle cap cannot be closed again after being opened.
This design makes the bottle cap easy to open, prevents counterfeit products, improves user experience and product anti-counterfeiting performance, and enhances market competitiveness and consumer trust.
Smart Images

Figure CN223765097U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bottle cap technology, and in particular to a novel easy-twist bottle cap and a container containing the novel easy-twist bottle cap. Background Technology
[0002] Modern bottle cap manufacturing combines various materials and technologies, such as plastics like polyethylene and polypropylene, with advanced processes like injection molding and die casting. Modern bottle cap designs emphasize sealing, anti-counterfeiting features, and user experience, and are widely used in beverage, food, and pharmaceutical industries.
[0003] Modern bottle caps, due to their tamper-evident rings, often make them difficult to open. However, these rings are easily removed and reassembled, rendering them largely ineffective in preventing theft and ensuring authenticity. This has led to the recycling of old wine bottles, medicine bottles, and water bottles to produce counterfeit products for sale, posing a significant food safety problem.
[0004] Therefore, this research aims to find a bottle cap design that combines practicality and anti-counterfeiting features, allowing everyone, regardless of age or physical strength, to easily open the bottle cap; at the same time, it can largely solve the food safety issues caused by the recycling and reuse of bottles. Utility Model Content
[0005] In view of this, in order to solve the technical problems that modern bottle caps are often difficult to open due to their anti-theft rings, and that the anti-theft rings are easy to disassemble and restore, leading to counterfeit products, this utility model provides a new type of easy-twist bottle cap. Through the linkage of the primary bottle cap assembly and the secondary bottle cap assembly, the bottle cap can be easily unscrewed, ensuring that the anti-theft ring cannot be disassembled and restored, thus greatly avoiding the production of counterfeit products.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A novel easy-twist bottle cap includes a primary bottle cap assembly and a secondary bottle cap assembly;
[0008] The primary cap assembly includes:
[0009] A first-level bottle cap, which has a first threaded hole for sealing onto the bottle mouth;
[0010] An anti-theft ring has a second threaded hole with a spiral direction opposite to that of the first threaded hole.
[0011] A folding device, one end of which is connected to the primary bottle cap, and the other end of which is connected to the anti-theft ring;
[0012] The secondary bottle cap assembly includes:
[0013] A two-stage variable torque bottle cap, whose torque can be changed;
[0014] A stud, one end of which is connected to the secondary torque variable cap, and is provided with an external thread for screwing into the first threaded hole and the second threaded hole;
[0015] The external thread is provided with a broken thread. By rotating the secondary torque variable cap, the stud is driven to rotate in the first threaded hole and the second threaded hole, which drives the anti-theft ring to move along the extension direction of the stud, so that the anti-theft ring is stuck into the bottle mouth. By breaking the broken thread, the anti-theft ring is separated from the secondary cap assembly and cannot be returned to its original position, ensuring the irreversible disassembly of the anti-theft ring.
[0016] Preferably, the folding device is a folding arm.
[0017] Preferably, there are four folding arms, evenly distributed between the anti-theft ring and the primary bottle cap.
[0018] Preferably, the secondary torque variable cap includes:
[0019] The base has a rotating groove.
[0020] A knob, which is connected to the base, is used to drive the base to rotate;
[0021] A fixed column is inserted into the rotating groove and can move along the direction of the rotating groove;
[0022] An opening and closing arm is connected to the fixed column;
[0023] Rotating the knob causes the base to rotate, moving the fixed column within the rotating groove and opening the opening arm to increase torque.
[0024] Preferably, the number of opening and closing arms is 6.
[0025] Preferably, the secondary torque variable cap has a non-slip surface.
[0026] Preferably, the anti-slip surface is a surface with grooves, a surface with protrusions, or a surface with particles.
[0027] Preferably, the secondary torque variable cap is shaped to be naturally held in the palm of the hand.
[0028] Preferably, the shape of the palm when naturally gripping has finger grooves or protrusions.
[0029] On the other hand, this utility model also provides a container, including the above-mentioned novel easy-twist bottle cap.
[0030] This utility model provides a novel easy-tight bottle cap that, through the linkage of a primary cap assembly and a secondary cap assembly, allows for easy unscrewing of the cap while ensuring that the anti-theft ring cannot be removed and restored, greatly preventing the production of counterfeit products. Compared with existing technologies, it has the following beneficial effects:
[0031] Interactive design:
[0032] The linkage mechanism between the primary and secondary cap assemblies makes the cap easier to unscrew. This design not only improves the user experience but also ensures that the anti-theft ring is not damaged or restored during the opening process.
[0033] The anti-theft ring cannot be removed and restored:
[0034] The anti-theft ring is designed to ensure that once the bottle cap is opened, the ring cannot be reset, effectively preventing counterfeit products. This feature is crucial for ensuring product quality and consumer safety.
[0035] Strong anti-counterfeiting features:
[0036] Because the anti-theft ring cannot be removed and restored, any attempt to counterfeit or reseal it will leave obvious traces, greatly enhancing the product's anti-counterfeiting performance.
[0037] User-friendliness:
[0038] The easy-twist design allows users to open the bottle cap with ease, providing greater convenience, especially for users with less strength (such as the elderly or children).
[0039] Market competitiveness:
[0040] This innovative design not only enhances the perceived quality of the product itself but also strengthens consumers' trust in the brand, thereby gaining a stronger competitive advantage in the market. Attached Figure Description
[0041] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0042] Figure 2 This is a schematic diagram of the primary bottle cap assembly (with studs);
[0043] Figure 3 This is a front view of a two-stage variable torque bottle cap;
[0044] Figure 4 This is a view of the back of a two-stage variable torque bottle cap;
[0045] Figure 5 A schematic diagram of the opening and closing arm for a two-stage variable torque bottle cap;
[0046] Figure 6This is a schematic diagram showing the connection between the knob and the base;
[0047] In the diagram, 1 is the primary bottle cap assembly; 2 is the secondary bottle cap assembly; 11 is the primary bottle cap; 111 is the first threaded hole; 12 is the tamper-evident ring; 121 is the second threaded hole; 13 is the folding arm; 21 is the secondary variable torque bottle cap; 211 is the base; 2111 is the rotating groove; 212 is the knob; 213 is the fixing post; 214 is the opening and closing arm; and 22 is the stud. Detailed Implementation
[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0049] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0050] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0051] like Figure 1-6 As shown, this utility model provides a novel easy-twist bottle cap, including a primary bottle cap assembly 1 and a secondary bottle cap assembly 2;
[0052] The primary bottle cap assembly 1 includes:
[0053] A first-level bottle cap 11 has a first threaded hole 111 for sealing onto the bottle mouth;
[0054] The anti-theft ring 12 has a second threaded hole 121 that is opposite in spiral direction to the first threaded hole 111;
[0055] A folding device, one end of which is connected to the primary bottle cap 11, and the other end of which is connected to the anti-theft ring 12;
[0056] The secondary bottle cap assembly 2 includes:
[0057] The secondary torque variable cap 21 has a variable torque that can be altered.
[0058] Stud 22, one end of which is connected to the secondary torque variable cap 21, and is provided with external threads for screwing into the first threaded hole 111 and the second threaded hole 121;
[0059] The external thread is provided with a broken thread. By rotating the secondary torque variable cap 21, the stud 22 is driven to rotate in the first threaded hole 111 and the second threaded hole 121, which drives the anti-theft ring 12 to move along the extension direction of the stud 22, so that the anti-theft ring 12 is stuck into the bottle mouth. By breaking the broken thread, the anti-theft ring 12 is separated from the secondary cap assembly 2 and cannot be returned to its original position, ensuring the irreversible disassembly of the anti-theft ring 12.
[0060] The broken-tooth thread design means that the external thread will break or snap at a specific point when unscrewed. Thus, when the secondary cap assembly 2 is unscrewed, the lower half of the external thread (the part connecting to the tamper-evident ring 12) will break off irreversibly, making it impossible to retighten. The broken-tooth thread design ensures that once the lower half of the external thread breaks, it cannot be reassembled, and the tamper-evident ring 12 separates from the secondary cap assembly 2 and cannot return to its original position. This structural design ensures irreversible disassembly of the cap and the tamper-evident ring 12, completely eliminating the possibility of refilling.
[0061] The design of the anti-theft ring 12: After the secondary cap assembly 2 is opened, the folding device and the broken-thread design of the anti-theft ring 12 work together to ensure that the anti-theft ring 12 is locked and cannot be removed. The design of the anti-theft ring 12 requires a tight fit with the bottle neck and the primary cap assembly 1, and when the secondary cap assembly 2 is unscrewed, the structure of the anti-theft ring 12 is forced into the bottle neck and cannot be disassembled. When the secondary cap assembly 2 is unscrewed, the locking structure of the anti-theft ring 12 is pushed and fixed at the bottle neck, so that it automatically locks itself after the secondary cap assembly 2 is removed and cannot be removed by conventional means.
[0062] The novel easy-tight bottle cap provided by this utility model firstly, the rotation of the secondary bottle cap assembly 2 causes the anti-theft ring 12 to engage inside the bottle opening, forming a strong locking point that prevents the anti-theft ring 12 from being removed. The secondary bottle cap assembly 2 is then rotated again until the broken thread breaks, completely separating the anti-theft ring 12 from the secondary bottle cap assembly 2 (separating it from the stud 22 described below; it cannot be restored and cannot be retightened). Because the anti-theft ring 12 is located inside the bottle and engaged inside the bottle opening, even after rotating the secondary bottle cap assembly 2 in the opposite direction, the anti-theft ring 12 cannot be removed, and the secondary bottle cap assembly 2 cannot be separated from the primary bottle cap assembly 1 for use. Therefore, only by breaking the broken thread on the external thread and separating the secondary bottle cap assembly 2 from the primary bottle cap assembly 1 can normal use be guaranteed.
[0063] In this invention, the folding device is a folding arm 13. When the secondary bottle cap assembly 2 rotates, it drives the folding arm 13 to fold towards the bottle opening. The folding arm 13 is designed to be slightly flexible, but possesses a certain strength and elasticity, made of materials such as rubber or silicone, ensuring that the folding arm 13 can smoothly unfold with the rotation of the secondary bottle cap assembly 2. As the secondary bottle cap assembly 2 unscrews, the folding arm 13 gradually conforms to the inside of the bottle opening, forming a strong locking point, making the anti-theft ring 12 impossible to remove.
[0064] In this utility model, there are four folding arms 13, which are evenly distributed between the anti-theft ring 12 and the first-level bottle cap.
[0065] In this utility model, such as Figure 3-5 As shown, the secondary torque variable cap 21 includes:
[0066] The base 211 has a rotating groove 2111 on it. The base 211 is conical, and the rotating groove 2111 is formed on the rotating groove of the conical base.
[0067] A knob 212, which is connected to the base 211, is used to drive the base 211 to rotate;
[0068] The fixed column 213 is inserted into the rotating groove 2111 and can move along the direction of the rotating groove 2111.
[0069] The opening and closing arm 214 is connected to the fixed column 213;
[0070] Rotating the knob 212 causes the base 211 to rotate, which in turn moves the fixed column 213 within the rotating groove 2111, thereby opening the opening arm 214 to increase the torque.
[0071] In this invention, the number of opening and closing arms 214 is six. Alternatively, four, eight, or other options can be selected, depending on actual needs.
[0072] In this invention, the two-stage torque variable cap 21 has an anti-slip surface.
[0073] In this invention, the anti-slip surface is a surface with grooves, a surface with protrusions, or a surface with particles. Anti-slip surface: The top of the secondary bottle cap assembly 2 is designed as an anti-slip surface with a special texture, such as adding fine grooves, wavy or granular protrusions to the surface of the secondary bottle cap assembly 2, making it easier for the user to grip the bottle cap when opening the bottle.
[0074] In this invention, the secondary torque variable cap 21 is shaped for natural hand grip, making the cap easier to hold.
[0075] In this invention, the shape of the palm for natural gripping has finger grooves or protrusions, which is especially friendly to users with weak hand strength.
[0076] The main design concept of the novel easy-twist bottle cap provided by this utility model lies in the design of mechanical assistance (first-stage bottle cap assembly 1 and second-stage bottle cap assembly 2).
[0077] The novel easy-tight bottle cap provided by this utility model can also be improved by reducing thread torque, such as: wide thread design: using a wide and shallow thread reduces friction when opening. The thread pitch can be made larger, thereby reducing the force required for rotation. Different angles for internal and external threads: the angles of the internal and external threads can be designed asymmetrically, making it easier to open when rotating. The external thread uses a smaller pitch, while the internal thread increases the pitch, thereby achieving lower opening resistance.
[0078] On the other hand, this utility model also provides a container, including the aforementioned novel easy-twist bottle cap. The container may be a bottle body, having a bottle mouth and a novel easy-twist bottle cap that fits onto the bottle mouth.
[0079] The novel easy-twist bottle cap provided by this utility model reduces the force required to open it, making it easier to unscrew and suitable for children, the elderly, and other users. Features such as an opening indicator, a grip protrusion, and a one-handed operation design enhance the user experience.
[0080] This invention can also be designed to integrate anti-counterfeiting labels or one-time tamper-evident sealing rings to prevent the product from being opened and then resealed, thereby ensuring the product's safety and authenticity. An integrated tamper-proof structure is added to ensure that it cannot be restored after the first opening, suitable for anti-counterfeiting needs of medicine bottles or food bottles.
[0081] This invention can employ a simplified structure or reduced material design to lower production costs and material consumption, facilitating recycling and reuse. Using a single material (such as PET or PP) allows it to be the same material as the bottle body, making it easy to recycle the entire bottle, thus being both environmentally friendly and recyclable.
[0082] A small storage compartment can also be added inside the secondary cap assembly 2 for storing powders, capsules, etc., making it particularly suitable for nutritional supplements and functional beverages, allowing for quick mixing before consumption. The multi-functional cap can function as a bottle opener when unscrewed, or it can be equipped with a measuring cup and portable storage function, suitable for preparing drinks or medicines.
[0083] This invention can also provide a certain degree of heat preservation through the design of an inner heat-insulating material or a vacuum layer, making it suitable for use in thermos flasks and refrigerators. The special sealing materials and design structure can help extend the shelf life of the contents, making it suitable for easily oxidized products such as juices and sauces.
[0084] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.
Claims
1. A new twist-on bottle cap characterized in that, The application relates to a novel easy-to-twist bottle cap. The first-stage bottle cap assembly comprises: a first-stage bottle cap provided with a first threaded hole for covering a bottle mouth; a theft-proof ring provided with a second threaded hole with a screwing direction opposite to that of the first threaded hole; a folding device with one end connected to the first-stage bottle cap and the other end connected to the theft-proof ring. The second-stage bottle cap assembly comprises: a second-stage variable-torque bottle cap; a stud with one end connected to the second-stage variable-torque bottle cap and provided with external threads for screwing with the first threaded hole and the second threaded hole; the external threads are provided with broken teeth, the second-stage variable-torque bottle cap is rotated to drive the stud to rotate in the first threaded hole and the second threaded hole, the theft-proof ring is driven to move along the extension direction of the stud, the theft-proof ring is clamped into the bottle mouth, the broken teeth are broken to separate the theft-proof ring from the second-stage bottle cap assembly and make the theft-proof ring unable to return to the original position, and the irreversible disassembly of the theft-proof ring is ensured.
2. A new easy-to-twist bottle cap according to claim 1, characterized in that, The folding device is a folding arm.
3. A new easy-to-twist bottle cap according to claim 2, characterized in that, The number of the folding arms is four, and the folding arms are evenly distributed between the theft-proof ring and the first-stage bottle cap.
4. A new easy-to-twist bottle cap according to claim 1, characterized in that, The second-stage variable-torque bottle cap comprises: a base provided with a rotating groove; a knob connected to the base for driving the base to rotate; a fixed column arranged in the rotating groove and capable of moving along the direction of the rotating groove; an opening and closing arm connected to the fixed column; the knob is rotated to drive the base to rotate, the fixed column is moved in the rotating groove, and the opening and closing arm is opened to increase the torque.
5. A new easy-to-twist bottle cap according to claim 4, characterized in that, The number of the opening and closing arms is six.
6. A new easy-to-twist bottle cap according to claim 1, characterized in that, The second-stage variable-torque bottle cap has an anti-slip surface.
7. A new easy-to-twist bottle cap according to claim 6, characterized in that, The anti-slip surface is a surface provided with grooves, a surface provided with protrusions or a surface provided with particles.
8. A new easy-to-twist bottle cap according to claim 1, characterized in that, The second-stage variable-torque bottle cap has a shape that can be naturally held by a palm.
9. A new easy-to-twist bottle cap according to claim 8, characterized in that, The shape that can be naturally held by a palm is provided with finger grooves or protrusions.
10. A container characterized in that, The application further relates to a novel easy-to-twist bottle cap comprising the novel easy-to-twist bottle cap.