A bottle cap and liquid container bottle
By designing a snap-fit structure between the bottle cap and the anti-theft ring, the problem of anti-theft function failure during bottle cap assembly was solved, thereby improving the stability of the anti-theft function and sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGJIANG YANXIN PACKAGING MATERIAL CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-23
AI Technical Summary
In existing technologies, the bottle cap and anti-theft ring are integrally injection molded, which can easily lead to breakage of the connection point due to improper assembly force, resulting in the failure of the anti-theft function.
Design a bottle cap structure in which the anti-theft ring consists of an outer ring and a mounting ring. Through the snap-fit structure of the first and second convex rings, the outer ring is moved and disconnected when the bottle cap is rotated, so that the anti-theft ring is separated from the bottle cap and assembled separately to avoid damage caused by rotation.
It reduces the possibility of anti-theft function failure during assembly, improves the effectiveness and stability of anti-theft function, and enhances the sealing performance and assembly convenience of bottle caps.
Smart Images
Figure CN224393457U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of container bottles and bottle caps, and in particular to a bottle cap and a liquid container bottle. Background Technology
[0002] Liquid packaging bottles are frequently used in daily life, especially in the food industry, where bottle packaging is particularly important. A good sealing effect combined with the design of an anti-theft ring has almost become the standard configuration for liquid packaging bottles. In existing technology, the anti-theft ring is generally directly connected to the bottle cap. The bottle cap is separated from the anti-theft ring by unscrewing the bottle cap for the first time, and the seal is achieved through threads or a compression structure. Both of these functions are relatively simple and singular.
[0003] In existing technologies, bottle caps and tamper-evident rings are often injection molded as a single piece during production, connected by a joint. The bottle cap is typically threaded onto the bottle neck. During assembly, a tightening force is applied to the cap to secure it to the container. During this tightening process, the tamper-evident ring is screwed in downwards along with the joint. To facilitate opening, the joint is often designed to break easily when rotated. Therefore, during assembly, improper force applied while rotating the bottle cap can easily cause the joint to break, rendering the tamper-evident function ineffective. Utility Model Content
[0004] In order to reduce the possibility of anti-theft function failure during assembly and improve the effectiveness of overall anti-theft function, this application provides a bottle cap and a liquid container bottle.
[0005] The bottle cap and liquid container provided in this application adopt the following technical solution:
[0006] A bottle cap and liquid container bottle include a bottle body, a bottle cap, and an anti-theft ring. The bottle body has a bottle mouth, and the bottle cap is fitted onto the bottle mouth and threadedly connected to it. The anti-theft ring includes an outer ring and a mounting ring, which are detachably connected. The mounting ring is fitted onto the bottle mouth and connected to it. The bottle cap has a first convex ring, and the outer ring has a second convex ring. The first convex ring abuts against the second convex ring. The outer ring and the bottle cap are engaged and connected via the first and second convex rings. Rotation of the bottle cap can move the outer ring to disengage the connection between the outer ring and the mounting ring.
[0007] By adopting the above technical solution, when the bottle cap is rotated, the bottle cap rises and gradually moves away from the bottle opening. During this process, the first and second convex rings abut against each other, pushing the outer ring to move away from the mounting ring, thereby contacting the connection between the mounting ring and the outer ring and disconnecting the anti-theft ring. At the same time, during assembly, the outer ring and the mounting ring are integrated, while during installation, the anti-theft ring and the bottle cap are assembled and installed separately. The outer ring as a whole does not need to be rotated, reducing the possibility of the anti-theft function failing during assembly and improving the overall effectiveness of the anti-theft function.
[0008] Preferably, the outer ring is located between the bottle cap and the bottle body, the mounting ring is located between the outer ring and the bottle body, and the first convex ring is inserted between the second convex ring and the mounting ring.
[0009] By adopting the above technical solution, after installing the anti-theft ring, the bottle cap is assembled onto the bottle mouth. During this process, when tightening the bottle cap, the first convex ring moves between the second convex ring and the mounting ring to complete the assembly. The operation is simple and convenient. When the bottle cap is unscrewed, the first convex ring presses against and pushes the second convex ring from below to move away from the mounting ring, thereby improving the stability of disconnecting the first convex ring and the second convex ring.
[0010] Preferably, the outer sidewall of the first convex ring and the inner sidewall of the second convex ring are both inclined and can abut against each other.
[0011] By adopting the above technical solution, the inclined outer wall of the first convex ring and the inner wall of the second convex ring facilitate the insertion of the first convex ring into the second convex ring and the mounting ring during bottle cap assembly, thereby improving the ease of assembly.
[0012] Preferably, the outer wall of the bottle opening is provided with a third convex ring, and the inner wall of the mounting ring is provided with a fourth convex ring. The fourth convex ring abuts against the third convex ring and is inserted between the third convex ring and the bottle body, abutting against the third convex ring.
[0013] By adopting the above technical solution, the installation ring is placed on the bottle mouth and pressed down, so that the fourth convex ring is engaged in the gap between the third convex ring and the bottle body, thereby assembling the anti-theft ring onto the bottle body. The operation is simple and convenient, and the assembly is easy.
[0014] Preferably, the inner wall of the bottle cap is provided with a sealing ring, and the sealing block is inserted into the bottle opening and can abut against the inner wall of the bottle opening.
[0015] By adopting the above technical solution, the sealing ring is inserted into the bottle mouth and seals the bottle mouth, further improving the sealing function of the bottle cap and enhancing its hygienic performance.
[0016] Preferably, the bottle body is provided with an auxiliary ring, which is arranged around the bottle mouth. The mounting ring and the outer ring are both located inside the auxiliary ring. The outer wall of the outer ring is provided with an assembly groove, and the inner wall of the auxiliary ring is provided with an assembly ring. The assembly ring is inserted into the assembly groove and can move in the assembly groove.
[0017] By adopting the above technical solution, during assembly, the anti-theft ring is pressed between the bottle mouth and the auxiliary ring. During this process, the assembly ring is pressed into the assembly groove, thereby completing the assembly. Furthermore, when the connection between the outer ring and the mounting ring is broken, the possibility of the outer ring falling off is reduced.
[0018] Preferably, the first convex ring is composed of multiple elastic sheets, which can abut against the second convex ring. The mounting ring is provided with an abutting ring block, the inner sidewall of which is inclined. The inner sidewall of the abutting ring block can abut against the elastic sheet and push the elastic sheet to compress and deform during the process of the bottle cap rotating and moving away from the bottle mouth.
[0019] By adopting the above technical solution, when the bottle cap is rotated and opened, the outer ring is driven to rise by the elastic sheet pressing against the second convex ring during the rising process. At the same time, the abutting ring block presses against the elastic sheet and pushes the elastic sheet to compress and deform, so that the second convex ring no longer presses against the elastic sheet, thereby separating the bottle cap from the outer ring and opening the bottle cap. The operation is simple and convenient, and there is no need to disassemble the outer ring, which improves the convenience of use.
[0020] Preferably, the second convex ring is made of an elastic material, and the sidewall of the elastic sheet near the abutting ring block is wavy, so that the elastic sheet can resist and push the second convex ring to elastically deform.
[0021] By adopting the above technical solution, during the bottle cap opening process, the abutting ring block abuts against the wavy sidewall of the elastic sheet, and pushes the elastic sheet to deform as the bottle cap rises. During this process, the elastic sheet pushes the second convex ring to deform elastically. The elastic sheet and the second convex ring deform synchronously, so that the second convex ring no longer presses against the elastic sheet, improving the convenience of bottle cap disassembly.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. By setting up a bottle body, bottle cap, bottle mouth, anti-theft ring, outer ring, mounting ring, first convex ring and second convex ring, when the bottle cap is unscrewed for the first time, the first convex ring abuts against the second convex ring on the outer ring of the anti-theft ring. When the bottle cap is rotated and moves away from the bottle body, it drives the outer ring to move, thereby disassembling the connection between the outer ring and the mounting ring, thus realizing the anti-theft function. At the same time, during the reassembly, the mounting ring is put on the bottle mouth and connected to the bottle mouth. No rotation is required during this process, thereby reducing the possibility of the anti-theft function failing during assembly and improving the overall effectiveness of the anti-theft function.
[0024] 2. By setting a third and fourth convex ring, the anti-theft ring is placed on the bottle mouth during assembly, so that the fourth convex ring on the mounting ring is engaged in the gap between the third convex ring on the bottle mouth and the bottle body, thereby assembling the mounting ring on the bottle body. During the assembly process, the outer ring and the mounting ring are integrated and no rotation operation is required, which reduces the possibility of the anti-theft function failing during the assembly process and improves the effectiveness of the overall anti-theft function.
[0025] 3. By setting up an auxiliary ring, an assembly groove, and an assembly ring, when assembling the anti-theft ring, the outer ring and the mounting ring are placed on the bottle mouth and inserted into the auxiliary ring. During this process, the assembly ring is inserted into the assembly groove on the outer ring, and the fourth convex ring is inserted into the gap between the third convex ring and the bottle body. Both sides are engaged, which is more balanced and improves the stability of the two-sided pressing and engaging, thereby reducing the possibility of the connection between the outer ring and the mounting ring breaking during the assembly process. Attached Figure Description
[0026] Figure 1 This is an overall schematic diagram of a bottle cap and liquid container provided in Embodiment 1 of this application.
[0027] Figure 2 This is a cross-sectional view used to illustrate the connection structure between the bottle cap and the bottle mouth in Embodiment 1.
[0028] Figure 3 This is an overall schematic diagram of a bottle cap and liquid container provided in Embodiment 2 of this application.
[0029] Figure 4 This is a cross-sectional view used to illustrate the connection structure between the bottle cap and the bottle mouth in Embodiment 2.
[0030] Explanation of reference numerals in the attached drawings: 1. Bottle body; 11. Bottle mouth; 111. Third convex ring; 2. Bottle cap; 21. First convex ring; 211. Elastic sheet; 22. Sealing ring; 3. Anti-theft ring; 31. Outer ring; 311. Second convex ring; 312. Assembly groove; 32. Mounting ring; 321. Fourth convex ring; 322. Abutment ring block; 4. Auxiliary ring; 41. Assembly ring. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0032] Embodiment 1 of this application discloses a bottle cap and a liquid container bottle. (See also...) Figure 1 and Figure 2The device includes a bottle body 1, a bottle cap 2, and an anti-theft ring 3. The top wall of the bottle body 1 is integrally fixed with an annular opening 11 communicating with the interior of the bottle body 1. The bottle cap 2 is fitted onto the bottle opening 11 and threadedly connected to the outer wall of the bottle opening 11. The anti-theft ring 3 includes an outer ring 31 and a mounting ring 32, which are integrally injection molded. The outer ring 31 and the mounting ring 32 are connected by multiple injection points to form a detachable connection structure. The anti-theft ring 3 is located between the bottle cap 2 and the bottle body 1. The top wall of the outer ring 31 abuts against the bottom wall of the bottle cap 2, and the bottom wall of the mounting ring 32 abuts against the top wall of the bottle body 1. A first protruding ring 21 is fixedly provided on the bottom wall of the bottle cap 2, and the bottom of the first protruding ring 21 abuts against the top of the mounting ring 32. A second protruding ring 311 is fixedly provided on the inner wall of the outer ring 31. The outer ring 31 and the bottle cap 2 are connected by a first protruding ring 21 and a second protruding ring 311. The movement of the bottle cap 2 after rotation can drive the outer ring 31 to move, thereby releasing the connection between the outer ring 31 and the mounting ring 32. The outer ring 31 and the mounting ring 32 are installed as a single unit. Compared with the anti-theft ring 3 which is installed as a single unit with the bottle cap 2, this reduces the possibility of damaging the anti-theft structure by rotating the bottle cap 2 during assembly, and improves the effectiveness of the overall anti-theft function.
[0033] For ease of assembly, refer to Figure 1 and Figure 2 The first protruding ring 21 is inserted between the second protruding ring 311 and the mounting ring 32. The outer sidewall of the first protruding ring 21 and the inner sidewall of the second protruding ring 311 are both inclined and can abut against each other, thus facilitating the insertion of the first protruding ring 21 between the second protruding ring 311 and the mounting ring 32 during assembly. A third protruding ring 111 is fixedly disposed on the outer wall of the bottle mouth 11 below the bottle cap 2. A fourth protruding ring 321 is fixedly disposed on the inner wall of the mounting ring 32, and the fourth protruding ring 321 is inserted between the third protruding ring 111 and the bottle body 1, abutting against the third protruding ring 111. The first protruding ring 21, the second protruding ring 311, the third protruding ring 111, and the fourth protruding ring 321 are all made of elastic plastic material. During assembly, the mounting ring 32 is pressed onto the bottle mouth 11, so that the fourth convex ring 321 is elastically deformed and fits into the gap between the third convex ring 111 and the bottle body 1. Then, the bottle cap 2 is rotated and fitted onto the bottle mouth 11, so that the first convex ring 21 is deformed and fits into the gap between the second convex ring 311 and the mounting ring 32.
[0034] To improve hygiene performance, refer to Figure 1 and Figure 2 A sealing ring 22 is fixedly provided on the inner top wall of the bottle cap 2. The sealing ring 22 is adapted to be inserted into the bottle mouth 11 and abuts against the inner wall of the bottle mouth 11 to seal. The longitudinal section of the sealing ring 22 is barbed. The sealing ring 22 is inserted into the bottle mouth 11 and seals the bottle mouth 11, further improving the sealing function of the bottle cap 2, preventing the possibility of foreign objects entering the bottle mouth 11 when the bottle cap 2 is closed, and improving the hygiene performance of the bottle cap 2.
[0035] Embodiment 2 of this application discloses a bottle cap and a liquid container bottle. (See also...) Figure 3 and Figure 4 Compared with Embodiment 1, the difference lies in that: the first convex ring 21 is composed of multiple elastic sheets 211 made of elastic plastic material. The elastic sheets 211 are folded and can elastically deform. The cross-section of the second convex ring 311 is also folded and can elastically deform. The elastic sheets 211 can resist and push the second convex ring 311 to elastically deform. Both the first convex ring 21 and the second convex ring 311 are arranged in a deformable folded shape, which facilitates the insertion of the first convex ring 21 between the second convex ring 311 and the mounting ring 32 during assembly, improving the convenience of assembly.
[0036] For ease of use, please refer to Figure 3 and Figure 4 A transparent auxiliary ring 4 is fixedly installed around the bottle mouth 11 on the top wall of the bottle body 1 to facilitate the connection between the outer ring 31 and the mounting ring 32. The anti-theft ring 3 is set between the auxiliary ring 4 and the bottle mouth 11. The inner wall of the auxiliary ring 4 is provided with an assembly ring 41 made of elastic material, which is bent towards the bottle body 1. The outer wall of the outer ring 31 is provided with an assembly groove 312, and the assembly ring 41 can slide into the assembly groove 312 and abut against the bottom wall of the assembly groove 312. During assembly, as the outer ring 31 is pressed between the auxiliary ring 4 and the bottle mouth 11, the assembly ring 41 is inserted into the assembly groove 312, thereby limiting the outer ring 31 and reducing the possibility of it falling off after the connection between the outer ring 31 and the mounting ring 32 is broken, making it convenient to use.
[0037] For ease of use, please refer to Figure 3 and Figure 4 A ring of abutting blocks 322 is fixedly installed on the top wall of the mounting ring 32. The inner wall of the abutting block 322 is inclined from top to bottom outwards. The side wall of the elastic piece 211 near the abutting block is wavy and inclined. The inner wall of the abutting block 322 can abut against the elastic piece 211 and push the elastic piece 211 to compress and deform during the rotation and movement of the bottle cap 2 away from the bottle mouth 11. During this process, the elastic piece 211 abuts against and pushes the second convex ring 311 to deform. When the bottle cap 2 is rotated to open, the elastic piece 211 pushes the second convex ring 311 up and disconnects the outer ring 31 from the mounting ring 32. During this process, the side wall of the elastic piece 211 abuts against the inner wall of the abutting block 322 and deforms under the abutment of the abutting block 322. After the second convex ring 311 deforms, the elastic piece 211 no longer abuts against the second convex ring 311, making it easy to remove the bottle cap 2.
[0038] The implementation principle of the bottle cap and liquid container bottle in this application embodiment is as follows: When the bottle cap 2 is unscrewed for the first time, as the bottle cap 2 moves away from the bottle body 1 during the rotation opening process, the first convex ring 21 abuts against the second convex ring 311 on the outer ring 31 of the anti-theft ring 3, driving the outer ring 31 to move and disconnecting the injection point connection between the outer ring 31 and the mounting ring 32, thereby realizing the anti-theft function. At the same time, during the reassembly, the outer ring 31 is integrally pressed onto the bottle mouth 11 along with the mounting ring 32, and the fourth convex ring 321 is inserted into the gap between the third convex ring 111 and the bottle body 1. During this process, no rotation is required, thereby reducing the possibility of the anti-theft function failing during the assembly process and improving the overall effectiveness of the anti-theft function.
[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A bottle cap and a liquid container bottle, comprising a bottle body (1), a bottle cap (2), and an anti-theft ring (3), wherein the bottle body (1) is provided with a bottle mouth (11), and the bottle cap (2) is fitted onto the bottle mouth (11) and threadedly connected to the bottle mouth (11), characterized in that: The anti-theft ring (3) includes an outer ring (31) and a mounting ring (32). The outer ring (31) and the mounting ring (32) are detachably connected. The mounting ring (32) is fitted onto the bottle mouth (11) and connected to the bottle mouth (11). The bottle cap (2) is provided with a first protruding ring (21). The outer ring (31) is provided with a second protruding ring (311). The first protruding ring (21) abuts against the second protruding ring (311). The outer ring (31) and the bottle cap (2) are connected by the first protruding ring (21) and the second protruding ring (311). When the bottle cap (2) rotates, it can drive the outer ring (31) to move to release the connection between the outer ring (31) and the mounting ring (32).
2. The bottle cap and liquid container bottle according to claim 1, characterized in that: The outer ring (31) is located between the bottle cap (2) and the bottle body (1), the mounting ring (32) is located between the outer ring (31) and the bottle body (1), and the first convex ring (21) is inserted between the second convex ring (311) and the mounting ring (32).
3. The bottle cap and liquid container bottle according to claim 2, characterized in that: The outer sidewall of the first convex ring (21) and the inner sidewall of the second convex ring (311) are both inclined and can abut against each other.
4. The bottle cap and liquid container bottle according to claim 1, characterized in that: The outer wall of the bottle mouth (11) is provided with a third protruding ring (111), and the inner wall of the mounting ring (32) is provided with a fourth protruding ring (321). The fourth protruding ring (321) abuts against the third protruding ring (111), and the fourth protruding ring (321) is inserted between the third protruding ring (111) and the bottle body (1) and abuts against the third protruding ring (111).
5. A bottle cap and liquid container bottle according to claim 1, characterized in that: The inner wall of the bottle cap (2) is provided with a sealing ring (22), which is inserted into the bottle mouth (11) and can abut against the inner wall of the bottle mouth (11).
6. The bottle cap and liquid container bottle according to claim 1, characterized in that: The bottle body (1) is provided with an auxiliary ring (4), which is arranged around the bottle mouth (11). The mounting ring (32) and the outer ring (31) are both located inside the auxiliary ring (4). The outer wall of the outer ring (31) is provided with an assembly groove (312), and the inner wall of the auxiliary ring (4) is provided with an assembly ring (41). The assembly ring (41) is inserted into the assembly groove (312) and can move in the assembly groove (312).
7. A bottle cap and liquid container bottle according to claim 6, characterized in that: The first convex ring (21) is composed of multiple elastic pieces (211), which can abut against the second convex ring (311). The mounting ring (32) is provided with an abutting ring block (322), the inner wall of the abutting ring block (322) is inclined, and the inner wall of the abutting ring block (322) can abut against the elastic piece (211) and push the elastic piece (211) to compress and deform during the process of the bottle cap (2) rotating and moving away from the bottle mouth (11).
8. A bottle cap and liquid container bottle according to claim 7, characterized in that: The second convex ring (311) is made of elastic material. The sidewall of the elastic sheet (211) near the abutting ring block (322) is wavy. The elastic sheet (211) can abut against and push the second convex ring (311) to deform elastically.