Anti-failure double-storage beverage bottle cap
By designing a failure-proof dual-storage beverage bottle cap, and utilizing the combination of guide posts and sliding grooves with an easy-tear retaining ring, the problem of sealing failure when water and ingredients are stored separately is solved, thus achieving the stability and safety of the beverage. This design is suitable for beverage production and storage processes.
Patent Information
- Application Number
- CN202423218379.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing beverage production and storage processes, the sealed structure that separates water and ingredients is prone to failure, affecting beverage quality and safety.
Design a failure-proof dual-cap beverage bottle fortification, comprising an upper cap, a middle cap, and a lower cap. The middle cap moves up and down through a guide post and a sliding groove. Combined with an easy-tear retaining ring and multiple sealing rings, it ensures sealing performance and stability.
It effectively prevents beverage leakage during storage and transportation, ensuring beverage quality and safety while providing a good user experience, and is suitable for automated mechanical production.
Smart Images

Figure CN223591424U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to beverage packaging technology, and in particular to a double-storage beverage bottle cap that prevents failure. Background Technology
[0002] The separate storage design for water and ingredients in beverages offers several advantages. Separate storage prevents the ingredients from undergoing prolonged soaking in water, which can alter their taste and ensure consumers can always enjoy the best-tasting beverage. Some ingredients, such as vitamins and minerals, lose some nutritional value when soaked in water for extended periods. The water-ingredient separation design maximizes the retention of these nutrients, making the beverage more nutritious. Because water and ingredients are stored separately, there is no need to add preservatives to extend shelf life. This aligns with today's health-conscious lifestyle, which avoids harmful additives.
[0003] Seal failure can occur when water and ingredients are stored separately during beverage production and storage, negatively impacting beverage quality and safety. Inadequate sealing design, uneven sealing surfaces, excessively large sealing gaps, or structural defects, as well as vibrations and impacts during prolonged storage or transportation, can all negatively affect sealing performance, leading to seal failure. Seal failure when storing water and ingredients separately is a serious issue that requires attention. Selecting high-quality sealing materials and structures to prevent seal failure is crucial to ensuring beverage quality and safety. Summary of the Invention
[0004] In view of the problems mentioned above or existing technologies, this utility model provides a dual-storage beverage bottle cap that prevents failure, ensuring the storage safety of the dual-storage bottle cap.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] A double-cap beverage bottle cap designed to prevent failure includes an upper cap, a middle cap, and a lower cap that interlock with each other; the upper cap is screwed onto the upper part of the middle cap by threads, the middle cap is inserted into the lower cap as a cavity for storing ingredients, and the bottom of the middle cap is provided with a spike for piercing the bottom of the lower cap.
[0007] The inner wall of the upper cover is provided with internal threads that mate with the middle cover. During installation, the top opening of the middle cover is closed by the upper cover. The middle cover is a through-type cylindrical structure composed of an upper cylinder and a lower cylinder with different diameters. The upper cylinder has a larger diameter than the lower cylinder. The lower cylinder is a straight cylindrical structure. The upper cylinder has external threads near the top for connecting with the upper cover. Two guide posts are symmetrically arranged at 180° on the outside of the upper cylinder. The bottom of the lower cylinder is provided with spikes, and gaps are reserved between the spikes.
[0008] The lower cover is a cylindrical structure with an open top. During installation, the top opening of the cylinder is closed by the middle cover, and the bottom of the cylinder is sealed by a sealing film. The cylindrical structure consists of an outer cylinder and an inner cylinder nested together. The inner cylinder is connected to the outer cylinder and forms a gap between them. The inner wall of the outer cylinder is provided with threads for connecting to the mouth of the beverage bottle. The connection between the outer cylinder and the inner cylinder extends upward to form an annular ring. Two spiral grooves are symmetrically provided on the annular ring. When the middle cover is inserted into the lower cover, two guide posts are located in the two grooves respectively. The middle cover moves up and down in the lower cover through the cooperation of the guide posts and the guide grooves. The bottom of the inner cylinder is sealed with a film.
[0009] The top of the annular ring formed by the upward extension of the outer and inner cylinders is connected to an easy-tear retaining ring. Multiple connection points are set between the easy-tear retaining ring and the annular ring. The middle cap is inserted into the lower cap and assembled together. The easy-tear retaining ring restricts the downward movement of the middle cap, preventing the middle cap from puncturing the lower cap when not drinking.
[0010] Preferably, the middle cover is provided with a second protrusion that cooperates with the easy-tear retaining ring. When the middle cover is assembled into the lower cover, the second protrusion is locked at the top of the easy-tear retaining ring, preventing the middle cover from moving further downward.
[0011] Preferably, a retaining ring pull block is provided on one side of the easy-tear retaining ring.
[0012] Preferably, the sealing film has an indentation along a diameter to form a tear area.
[0013] Preferably, the spiked portion includes four vertically arranged triangular spikes, which are distributed in a cross shape along the center of the middle cover, with gaps between the four spikes.
[0014] Preferably, the guide post is a cylindrical structure extending radially outward along the middle cover.
[0015] Preferably, the outer cylinder has a bottom cover buckle on its inner wall near the bottom, and the bottom cover is screwed onto the bottle mouth and engaged with the groove of the bottle mouth by the top cover buckle.
[0016] Preferably, the top of the upper cover is provided with an upper cover sealing ring that is embedded in the middle cover during assembly; the upper cover is provided with an upper cover buckle near the bottom inner wall, and the upper cover is screwed onto the middle cover and engaged with the first protrusion on the outside of the middle cover through the upper cover buckle.
[0017] Preferably, the upper cylinder of the middle cover is provided with two layers of sealing rings to achieve a seal between the middle cover and the easy-tear retaining ring.
[0018] Preferably, the lower cylinder of the middle cover is provided with multiple layers of raised ribs to achieve a seal between the middle cover and the lower cover, and the raised ribs have a semi-circular cross-section.
[0019] The beneficial effects of this novel anti-failure dual-storage beverage bottle cap are as follows:
[0020] This invention utilizes a sealing film at the bottom of the lower lid to form a cavity for storing ingredients between the middle and lower lids. The middle and lower lids cooperate to form a sealed space for storing beverages. An easy-tear retaining ring is provided on the upper part of the lower lid to restrict the downward movement of the middle lid. The easy-tear retaining ring is designed so that users can easily tear it off when needed, allowing the middle lid to move downwards. However, during normal use and storage, the easy-tear retaining ring remains intact, preventing the middle lid from accidentally puncturing the lower lid and causing beverage leakage or damage. Through the tight fit between the middle and lower lids and the effective restriction of the easy-tear retaining ring, this cavity ensures the safety and stability of the beverage during storage and transportation.
[0021] Meanwhile, the easy-tear retaining ring design allows users to easily open the cavity when needed, which not only meets the product protection requirements but also provides a good user experience.
[0022] The upper cylinder of the middle cover has two sealing rings on its outside to achieve a seal between the middle cover and the easy-tear retaining ring. The lower cylinder of the middle cover has multiple layers of raised ridges on its outside to achieve a seal between the middle cover and the lower cover, ensuring a tight seal of the cavity and preventing water from entering the mixing cavity.
[0023] The middle cover is inserted into the lower cover during assembly. The external guide post of the middle cover slides along the guide groove into the slide groove, realizing the rapid assembly of the middle cover and the lower cover. This enables automated mass production. The structural design of this utility model facilitates mechanized and automated assembly, thereby enabling mass production. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structural division of this utility model.
[0025] Figure 2 This is a cross-sectional view of the combined structure of this utility model;
[0026] Figure 3 for Figure 2 Enlarged view at point H;
[0027] Figure 4 This is a schematic diagram of the combined structure of this utility model;
[0028] Figure 5 This is a perspective view of the middle cover of this utility model;
[0029] Figure 6 This is a front view of the middle cover of this utility model;
[0030] Figure 7 This is a bottom view of the middle cover of this utility model;
[0031] Figure 8 This is a perspective view of the lower cover of this utility model;
[0032] Figure 9 This is a front view of the lower cover of this utility model;
[0033] Figure 10 This is a cross-sectional view of the lower cover of this utility model;
[0034] Figure 11 for Figure 10 Enlarged view at point C;
[0035] Figure 12 This is a top view of the lower cover of this utility model;
[0036] Figure 13 This is a bottom view of the lower cover of this utility model;
[0037] In the diagram: 1-Top cover, 101-Top cover sealing ring, 102-Top cover inverted buckle, 2-Easy-tear retaining ring, 201-Retaining ring pull block, 3-Middle cover, 301-First boss, 302-Second boss, 303-Sealing ring, 304-Guide post, 305-Spike part, 4-Lower cover, 401-Slide groove, 402-Threaded cylinder, 403-Raised ridge, 404-Indentation, 405-Lower cover inverted buckle, 5-Bottle mouth. Detailed Implementation
[0038] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0039] like Figures 1-4 As shown, the present invention provides a double-capped beverage bottle for preventing failure, comprising an upper cap 1, a middle cap 3, and a lower cap 4 that interlock with each other; the upper cap 1 is screwed onto the upper part of the middle cap 3 by means of threads, the middle cap 3 is inserted into the lower cap 4 as a cavity for storing ingredients, and the bottom of the middle cap 3 is provided with a spike for piercing the bottom of the lower cap 4.
[0040] like Figure 1 As shown, the inner wall of the upper cover 1 is provided with an internal thread that mates with the middle cover 3. A sealing ring 101, which is embedded in the middle cover 3 during assembly, is provided on the top inner wall of the upper cover 1. An upper cover buckle 102 is provided on the inner wall of the upper cover 1 near the bottom. The upper cover 1 is screwed onto the middle cover 3 and engages with the first protrusion 301 on the outside of the middle cover 3 via the upper cover buckle 102. Once screwed on, it cannot be opened to prevent separation of the upper cover 1 and the middle cover 3. During installation, the top opening of the middle cover 3 is closed by the upper cover 1. The outer surface of the upper cover 1 is provided with anti-slip texture.
[0041] like Figures 5-7 As shown, the middle cover 3 is a through-type cylindrical structure composed of an upper cylinder and a lower cylinder of different diameters connected together. The upper cylinder has a larger diameter than the lower cylinder, and the lower cylinder has a straight cylindrical structure. Near the top of the upper cylinder, there is a [feature / feature] for...
[0042] The upper cylinder 202 has an external thread connecting to the upper cover 1. Two guide posts 304 are symmetrically arranged at 180° on the outside of the upper cylinder. The lower cylinder 202 has a spiked portion 305 at its bottom, comprising four vertically arranged triangular spikes distributed in a cross shape along the center of the middle cover, with gaps between them. The guide posts 304 are cylindrical structures extending radially outward from the middle cover 3. When the middle cover 3 is inserted into the lower cover 4, the two guide posts 304 engage with the two sliding grooves 401 of the lower cover 4, thus assembling the middle cover and the lower cover together.
[0043] like Figures 8-13 As shown, the lower cover 4 is a cylindrical structure with an open top. The bottom of the cylinder is sealed by a sealing film. During installation, the top opening of the cylinder is sealed by the middle cover 3. The cylindrical structure consists of an outer cylinder and an inner cylinder nested together. The inner cylinder is connected to the outer cylinder and forms a gap between them. The inner wall of the outer cylinder is provided with threads for connecting to the bottle mouth 5. The inner wall of the outer cylinder near the bottom is provided with a lower cover buckle 405. The lower cover 4 is screwed onto the bottle mouth 5 and is engaged with the groove of the bottle mouth 5 by the upper cover buckle 102. After being screwed on, it cannot be opened to prevent the lower cover 4 from separating from the bottle mouth 5.
[0044] like Figure 9 As shown, the connecting part of the outer and inner cylinders of the lower cover 4 extends upward to form an annular ring. Two spirally ascending grooves 401 are symmetrically opened on the annular ring. When the middle cover is inserted into the lower cover 4, two guide posts 304 are respectively located in the two grooves 401. The middle cover 3 moves up and down in the lower cover 4 through the cooperation of the guide posts and guide grooves. The bottom of the inner cylinder is a sealing film. An indentation 404 is set on the sealing film along a diameter to form a breaking area. The outer circumference of the outer cylinder is provided with anti-slip texture. Through the action of the guide posts and guide grooves, rotating the middle cover causes the middle cover to move downward, and its bottom spike 305 pierces the bottom sealing film of the lower cover 4. The ingredients stored in the middle cover 3 enter the bottle through the gap.
[0045] The outer and inner cylinders extend upwards to form an annular ring, with an easy-tear retaining ring 2 connected to the top. A retaining ring pull block 201 is provided on one side of the easy-tear retaining ring 2. Multiple connection points are provided between the easy-tear retaining ring 2 and the annular ring. The middle cover 3 is inserted into the lower cover 4 and assembled together. The easy-tear retaining ring 2 restricts the downward movement of the middle cover, preventing it from puncturing the lower cover when not in use. A second protrusion 302 is provided on the middle cover 3 to cooperate with the easy-tear retaining ring 2. When the middle cover is assembled into the lower cover 4, the second protrusion 302 is engaged at the top of the easy-tear retaining ring 2, preventing the middle cover from moving further downwards. Two sealing rings 303 are provided on the outer side of the upper cylinder of the middle cover 3 to achieve a seal between the middle cover and the easy-tear retaining ring 2.
[0046] like Figure 1 and Figure 2 As shown, the lower cylinder of the middle cover has multiple layers of raised ribs on its outside to achieve a seal between the middle cover and the lower cover. The raised ribs have a semi-circular cross-section.
Claims
1. A malfunction-resistant dual-storage beverage bottle cap, characterized in that: It includes an upper cover (1), a middle cover (3) and a lower cover (4) that are interlocked with each other; the upper cover (1) is screwed onto the upper part of the middle cover (3) by a thread, the middle cover (3) is inserted into the lower cover (4) as a cavity for storing ingredients, and the bottom of the middle cover (3) is provided with a spike for piercing the bottom of the lower cover (4); The inner wall of the upper cover (1) is provided with an internal thread that mates with the middle cover (3). During installation, the top opening of the middle cover (3) is closed by the upper cover (1). The middle cover (3) is a through-type cylindrical structure formed by connecting an upper cylinder and a lower cylinder with different diameters. The upper cylinder has a larger diameter than the lower cylinder. The lower cylinder is a straight cylinder structure. The upper cylinder has an external thread near the top for connecting with the upper cover (1). The upper cylinder has two guide posts (304) symmetrically arranged at 180° on the outside. The bottom of the lower cylinder (202) is provided with spikes (305), and a gap is reserved between the spikes (305). The lower cover (4) is a cylindrical structure with an open top. When installed, the top opening of the cylinder is closed by the middle cover (3), and the bottom of the cylinder is sealed by a sealing film. The cylindrical structure consists of an outer cylinder and an inner cylinder nested together. The inner cylinder is connected to the outer cylinder and forms a gap with the outer cylinder. The inner wall of the outer cylinder is provided with a thread for connecting to the bottle mouth (5). The connection between the outer cylinder and the inner cylinder extends upward to form an annular ring. Two spirally rising grooves (401) are symmetrically provided on the annular ring. When the middle cover is inserted into the lower cover (4), the two guide posts (304) are located in the two grooves (401) respectively. The middle cover (3) moves up and down in the lower cover (4) through the cooperation of the guide posts and the guide grooves. The bottom of the inner cylinder is a sealing film. The top of the annular ring formed by the upward extension of the outer cylinder and the inner cylinder is connected to an easy-tear retaining ring (2). Multiple connection points are provided between the easy-tear retaining ring (2) and the annular ring. The middle cover (3) is inserted into the lower cover (4) and assembled together. The easy-tear retaining ring (2) restricts the middle cover from moving downward, so as to prevent the middle cover from puncturing the lower cover when not drinking.
2. The anti-failure dual-storage beverage bottle cap as described in claim 1, characterized in that: The middle cover (3) is provided with a second protrusion (302) that cooperates with the easy-tear retaining ring (2). When the middle cover is assembled into the lower cover (4), the second protrusion (302) is stuck on the top of the easy-tear retaining ring (2) to prevent the middle cover from moving downward.
3. The anti-failure dual-storage beverage bottle cap as described in claim 2, characterized in that: A retaining ring pull block (201) is provided on one side of the easy-tear retaining ring (2).
4. The anti-failure dual-storage beverage bottle cap as described in claim 3, characterized in that: An indentation (404) is provided along a diameter on the sealing film to form a tear area.
5. The anti-failure dual-storage beverage bottle cap as described in claim 4, characterized in that: The spiked portion (305) includes four vertically arranged triangular spikes, which are distributed in a cross shape along the center of the middle cover, and a gap is formed between the four spikes.
6. The anti-failure dual-storage beverage bottle cap as described in any one of claims 1-5, characterized in that: The guide post (304) is a cylindrical structure that extends radially outward along the middle cover (3).
7. The anti-failure dual-storage beverage bottle cap as described in any one of claims 1-5, characterized in that: The outer cylinder is provided with a lower cover buckle (405) near the bottom inner wall. The lower cover (4) is screwed onto the bottle mouth (5) and engaged with the groove of the bottle mouth (5) by the upper cover buckle (102).
8. The anti-failure dual-storage beverage bottle cap as described in any one of claims 1-5, characterized in that: The top of the upper cover (1) is provided with an upper cover sealing ring (101) that is embedded in the middle cover (3) during assembly; the upper cover (1) is provided with an upper cover buckle (102) near the bottom inner wall, and the upper cover (1) is screwed onto the middle cover (3) and fastened to the first protrusion (301) on the outside of the middle cover (3) through the upper cover buckle (102).
9. The anti-failure dual-storage beverage bottle cap as described in any one of claims 1-5, characterized in that: The upper cylinder of the middle cover (3) is provided with two sealing rings (303) to achieve a seal between the middle cover and the easy-tear retaining ring (2).
10. The anti-failure dual-storage beverage bottle cap as described in any one of claims 1-5, characterized in that: The lower cylinder of the middle cover is provided with multiple layers of raised ribs to achieve a seal between the middle cover and the lower cover. The raised ribs have a semi-circular cross-section.