A beer bottle cap

By using a multi-layered sealing structure and a removable stopper design, the problem of insufficient sealing of beer bottle caps is solved, enabling good storage and secondary sealing of beer, and improving the taste and convenience of beer.

CN224676837UActive Publication Date: 2026-08-25BEIJING BREWING (SHANDONG) BEER CO LTD
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Patent Information

Application Number
CN202522286491.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-29
Publication Date
2026-08-25
Estimated Expiration
2035-10-29

AI Technical Summary

Technical Problem

Existing beer bottle caps have insufficient sealing, causing carbon dioxide gas to escape, affecting the taste of the beer, and they cannot achieve secondary sealing.

Method used

A beer bottle cap has been designed, comprising a stepped shell, a sealing ring, a gasket, and a top cap. Through a multi-layer sealing structure and a removable stopper, it achieves multiple seals and can be resealed after opening.

Benefits of technology

It effectively prevents carbon dioxide gas from escaping, ensuring the taste of beer, reducing the difficulty of opening, and enabling secondary storage of beer to ensure a good taste when drinking it again.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to beer packaging technical field discloses a beer bottle cap, including with the bottle mouth thread connection's ladder shell cover, set up the sealing washer between ladder shell cover and bottle mouth, the inside detachable of ladder shell cover is provided with the bottle plug, set up the rubber pad between bottle plug and ladder shell cover, the outside thread connection of ladder shell cover has the top cap, the first seal is formed between sealing washer and ladder shell cover, realizes the second seal through the rubber pad between bottle plug and ladder shell cover, the third seal is formed between top cap and ladder shell cover, and the triple seal design ensures that beer in the storage process bottle in carbon dioxide gas does not escape, maintains the good taste of beer.
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Description

Technical Field

[0001] This utility model relates to the field of beer packaging technology, and in particular to a beer bottle cap. Background Technology

[0002] Beer is a popular alcoholic beverage made by fermenting the sugars in grains such as malt with yeast. Beer brewing usually takes place in sealed fermentation tanks, where the carbon dioxide produced during fermentation cannot escape and dissolves in the beer. Food-grade carbon dioxide is also injected into the beer during bottling because it is an important component that ensures the taste of beer. When a drinker opens the bottle and takes a sip, the rising ambient temperature and pressure cause countless tiny bubbles of carbon dioxide to burst in the mouth, creating a slight tingling and popping sensation, commonly known as the "killer mouthfeel." This sensation brings a refreshing, stimulating, and thirst-quenching feeling. At the same time, the bursting of carbon dioxide bubbles releases the aroma of the beer, and the sense of smell assists the sense of taste in enhancing the flavor of the beer.

[0003] During the storage of bottled beer, temperature changes, physical impacts and vibrations, and stacking pressure can cause carbon dioxide gas to escape, affecting the taste of the beer. When the beer cannot be finished at once, improper resealing can also cause carbon dioxide gas to escape, affecting the taste when drinking it again. This requires the bottle cap to have a good seal with the bottle opening.

[0004] However, in current technology, beer bottle caps only have one sealing structure, which cannot guarantee a good seal for carbon dioxide gas inside the bottle. Furthermore, once opened, they cannot be restored to their original state and cannot reseal the bottle opening, causing carbon dioxide gas to escape and affecting the taste of the beer when consumed again. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this invention is to provide a beer bottle cap that solves the problem of low sealing performance of existing beer bottle caps, which causes carbon dioxide gas to escape from the bottle during transportation and affects the taste of the beer. (II) Utility Model Content To achieve the above objectives, the present invention provides the following technical solution: a beer bottle cap, comprising a stepped shell sleeve threadedly connected to the bottle mouth, a sealing ring provided between the stepped shell sleeve and the bottle mouth, a bottle stopper detachably provided inside the stepped shell sleeve, a rubber gasket provided between the bottle stopper and the stepped shell sleeve, and a top cap threadedly connected to the outer side of the stepped shell sleeve.

[0007] Preferably, the stepped shell is divided into upper and lower steps, with the diameter of the lower step being larger than that of the upper step. The lower step of the stepped shell is divided into inner and outer layers. The inner wall of the outer layer of the lower step is threadedly connected to the outer wall of the bottle mouth. The outer wall of the inner layer of the lower step presses the sealing ring against the inner wall of the bottle mouth. The outer wall of the upper step of the stepped shell is threadedly connected to the top cap. An annular platform is integrally connected inside the upper step of the stepped shell. Two symmetrical stop posts are integrally connected to the inner wall of the annular platform. The stop posts are slidably connected to the bottle stopper.

[0008] Preferably, the stopcock is a two-section cylindrical stopcock, the diameter of the upper section of the stopcock is larger than the diameter of the lower section, the outer diameter of the upper section of the stopcock is slightly smaller than the inner diameter of the upper step of the stepped shell, the outer diameter of the lower section of the stopcock is slightly smaller than the inner diameter of the ring, and two symmetrically distributed sliding grooves are provided on the outer side of the lower section of the stopcock. Each sliding groove includes two sections, the first section is inclined upward and the second section is straight. A limit stop is integrally provided near the end of the straight section of each sliding groove. The width of the two sliding grooves is adapted to the stop post, and the stop post can slide in the sliding groove.

[0009] Preferably, the bottom of the rubber pad is in support contact with the top of the ring platform, and the top of the rubber pad abuts against the bottom annular surface of the upper section of the bottle stopper.

[0010] Preferably, the top cover includes an outer anti-slip layer and an inner connecting layer. The anti-slip layer has outwardly protruding anti-slip ribs evenly distributed circumferentially, and the inner side of the connecting layer is threadedly connected to the outer side of the upper step of the stepped shell.

[0011] Preferably, the top of the top cover is integrally connected with two torsion protrusions, and a groove is formed between the two torsion protrusions. The top of the upper section of the bottle stopper is provided with two semi-circular grooves, and a transmission plate is formed between the two semi-circular grooves. The transmission plate is adapted to the groove.

[0012] (III) Beneficial Effects The advantages of the beer bottle cap provided by this utility model are as follows: 1. By setting up a sealing ring, a rubber gasket, and a top cap, the sealing ring seals the gap between the lower inner layer of the stepped shell and the inner wall of the bottle neck, forming the first sealing layer. The rubber gasket seals the gap between the top of the ring platform and the bottom annular surface of the upper section of the stopper, forming the second sealing layer. The top cap connecting layer is threaded to the outer side of the upper step of the stepped shell, forming the third sealing layer. These three sealing layers prevent carbon dioxide gas from escaping from the beer bottle during storage, ensuring the good taste of the beer. 2. By setting a stopper, when there is beer left, the stopper is screwed into the upper step of the stepped shell. The downward pressure generated by the downward rotation of the top cap on the stopper presses the rubber gasket against the top of the ring platform, forming an end face seal. This achieves secondary sealing of the beer, preventing carbon dioxide gas from escaping and ensuring the good taste of the beer when it is drunk again.

[0013] 3. By setting up a slot and a transmission plate, the locking mechanism between the slot and the transmission plate amplifies the torque applied by the hand to the bottle stopper, thereby opening the bottle stopper with less force and reducing the difficulty of opening the bottle stopper.

[0014] 4. By setting anti-slip ribs, the raised parts of the anti-slip ribs increase the friction between the hand and the top cover, making it easier to open the top cover and reducing the difficulty of opening the top cover. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the stepped shell structure of this utility model; Figure 4 This is a schematic diagram of the sealing ring in this utility model; Figure 5 This is a schematic diagram of the bottle stopper structure in this utility model; Figure 6 This is a schematic diagram of the structure of the rubber pad in this utility model; Figure 7 This is a schematic diagram of the torsion protrusion in this utility model.

[0016] In the diagram: 1. Stepped shell; 11. Ring platform; 12. Stop post; 2. Sealing ring; 3. Bottle stopper; 31. Slide groove; 32. Limiting block; 33. Semi-circular groove; 34. Transmission plate; 4. Rubber pad; 5. Top cover; 51. Anti-slip layer; 511. Anti-slip rib; 52. Connecting layer; 53. Torque protrusion; 54. Slot. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0019] Please see Figures 1-2 A beer bottle cap includes a stepped shell 1 threadedly connected to the bottle neck, a sealing ring 2 provided between the stepped shell 1 and the bottle neck, a bottle stopper 3 detachably provided inside the stepped shell 1, a rubber gasket 4 provided between the bottle stopper 3 and the stepped shell 1, and a top cap 5 threadedly connected to the outside of the stepped shell 1.

[0020] Furthermore, to achieve a seal between the stepped shell 1 and the bottle opening, such as... Figures 2-4 As shown, the stepped shell 1 is divided into upper and lower steps, with the lower step having a larger diameter than the upper step. A rope loop can be integrally set on the top ring surface of the lower step, through which a rope passes to connect to the top cap 5 or the bottle stopper 3 to prevent loss. The lower step of the stepped shell 1 is divided into inner and outer layers. The inner wall of the outer layer of the lower step of the stepped shell 1 is threadedly connected to the outer wall of the bottle mouth, fixing the stepped shell 1 at the bottle mouth. The outer wall of the inner layer of the lower step of the stepped shell 1 presses the sealing ring 2 tightly against the inner wall of the bottle mouth. The sealing ring 2 seals the gap between the inner layer of the lower step of the stepped shell 1 and the bottle mouth, preventing the escape of carbon dioxide gas from the beer bottle and ensuring the taste of the beer. The outer wall of the upper step of the stepped shell 1 is threadedly connected to the top cap 5. An integrated ring platform 11 is integrally connected inside the upper step of the stepped shell 1. Two symmetrical baffles 12 are integrally connected to the inner wall of the ring platform 11, and the baffles 12 are slidably connected to the bottle stopper 3.

[0021] Furthermore, such as Figure 2 , Figure 5As shown, the bottle stopper 3 is a two-section cylindrical bottle stopper 3. The diameter of the upper section of the bottle stopper 3 is larger than that of the lower section. The outer diameter of the upper section of the bottle stopper 3 is slightly smaller than the inner diameter of the upper step of the stepped shell 1. The outer diameter of the lower section of the bottle stopper 3 is slightly smaller than the inner diameter of the ring platform 11. Two symmetrically distributed sliding grooves 31 are provided on the outer side of the lower section of the bottle stopper 3. Each sliding groove 31 includes two sections. The first section is inclined upward at about 45 degrees, and the second section is straight. A limit stop 32 is integrally provided near the end of the straight section of each sliding groove 31. The two sliding grooves... The width of the groove 31 is adapted to the stop post 12, and the stop post 12 can slide in the groove 31. When the bottle stopper 3 is rotated downward, the stop post 12 enters the inclined part of the first section of the groove 31. When the bottle stopper 3 is rotated further, the stop post 12 enters the straight part of the second section along the inclined part of the first section of the groove 31. When the stop post 12 slides into the tail of the groove 31, it is obstructed by the limiting block 32, and the hand generates resistance tactile feedback. After the stop post 12 passes the limiting block 32, the resistance disappears, realizing the tactile positioning of the stop post 32.

[0022] Furthermore, in order to achieve a seal between the stopper 3 and the stepped sleeve, such as Figure 2 , Figure 6 As shown, the bottom of the rubber pad 4 is in contact with the top of the ring platform 11, and the top of the rubber pad 4 abuts against the bottom ring surface of the upper section of the bottle stopper 3. The top cap 5 rotates downward, generating downward pressure on the bottle stopper 3. This pressure is transmitted to the rubber pad 4 through the bottom ring surface of the upper section of the bottle stopper 3, and finally presses the rubber pad 4 tightly against the top of the ring platform 11 to form an end face seal, preventing gas from escaping and ensuring the taste of the beer.

[0023] Furthermore, such as Figure 2 As shown, the top cover 5 includes an outer anti-slip layer 51 and an inner connecting layer 52. The anti-slip layer 51 has outwardly protruding anti-slip ribs 511 evenly distributed around its circumference. The anti-slip ribs 511 increase the friction between the hand and the top cover 5, making it easier to open the top cover 5. The inner side of the connecting layer 52 is threadedly connected to the outer side of the upper step of the stepped shell 1. The threaded inclined surfaces achieve a surface seal through the threaded locking force, preventing gas from escaping and ensuring the taste of the beer.

[0024] Furthermore, to facilitate the opening of the bottle cap 3, as follows... Figures 6-7 As shown, the top of the top cover 5 is integrally connected with two torque protrusions 53, and a slot 54 is formed between the two torque protrusions 53. The top of the upper section of the bottle stopper 3 has two semi-circular grooves 33, and a transmission plate 34 is formed between the two semi-circular grooves 33. The transmission plate 34 is adapted to the slot 54. When the top cover 5 is turned upside down, the transmission plate 34 is inserted into the slot 54, which amplifies the torque of the hand on the bottle stopper 3, so that the bottle stopper 3 can be unscrewed with less force, avoiding the pain caused by excessive resistance when the fingers directly rotate the transmission plate 34, and reducing the difficulty of opening the bottle stopper 3.

[0025] Working principle: During beer transportation, when the gas in the bottle tends to escape due to temperature changes and vibration, the outer wall of the lower inner layer of the stepped shell 1 presses the sealing ring 2 tightly against the inner wall of the bottle mouth. The sealing ring 2 seals the gap between the lower inner layer of the stepped shell 1 and the bottle mouth. The top cap 5 exerts downward pressure on the bottle stopper 3. This pressure is transmitted to the rubber gasket 4 through the bottom ring face of the upper section of the bottle stopper 3, and finally presses the rubber gasket 4 tightly against the top of the ring platform 11 to form an end face seal. The inner side of the connecting layer 52 of the top cap 5 is threadedly connected to the outer side of the upper step of the stepped shell 1. The threaded bevels achieve a surface seal through the thread locking force. The three sealing structures prevent the escape of carbon dioxide gas and ensure the taste of the beer.

[0026] When it is necessary to open the beer bottle, the anti-slip ribs of the top cap increase the friction between the hand and the top cap, making it easier to open the top cap. Turn the top cap 5 upside down and insert the transmission plate 34 into the slot 54, amplifying the torque of the hand on the bottle stopper 3 and reducing the difficulty of opening the bottle stopper 3.

[0027] When the beer cannot be finished in one go, screw the bottle stopper 3 back into the upper step of the stepped shell 1. Use the downward pressure generated by the downward rotation of the top cap 5 on the bottle stopper 3 to press the rubber gasket 4 tightly against the top of the ring platform 11, forming an end face seal, realizing secondary sealing of the beer, preventing carbon dioxide gas from escaping, and ensuring the good taste of the beer when it is drunk again.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A beer bottle cap, characterized in that: It includes a stepped shell sleeve (1) that is threaded to the bottle mouth, a sealing ring (2) is provided between the stepped shell sleeve (1) and the bottle mouth, a bottle plug (3) is detachably provided inside the stepped shell sleeve (1), a rubber gasket (4) is provided between the bottle plug (3) and the stepped shell sleeve (1), and a top cover (5) is threaded to the outside of the stepped shell sleeve (1).

2. A beer bottle cap according to claim 1, characterized in that: The stepped shell (1) is divided into upper and lower steps, with the diameter of the lower step being larger than that of the upper step. The lower step of the stepped shell (1) is divided into inner and outer layers. The inner wall of the outer layer of the lower step of the stepped shell is threaded to the outer wall of the bottle mouth. The outer wall of the inner layer of the lower step of the stepped shell (1) presses the sealing ring (2) against the inner wall of the bottle mouth. The outer wall of the upper step of the stepped shell (1) is threaded to the top cover (5). The upper step of the stepped shell (1) is integrally connected with an annular platform (11). The inner wall of the annular platform (11) is integrally connected with two symmetrical baffles (12). The baffles (12) are slidably connected to the bottle stopper (3).

3. A beer bottle cap according to claim 2, characterized in that: The bottle stopper (3) is a two-section cylindrical bottle stopper (3). The diameter of the upper section of the bottle stopper (3) is larger than that of the lower section. The outer diameter of the upper section of the bottle stopper (3) is slightly smaller than the inner diameter of the upper step of the stepped shell (1). The outer diameter of the lower section of the bottle stopper (3) is slightly smaller than the inner diameter of the ring platform (11). Two symmetrically distributed sliding grooves (31) are provided on the outer side of the lower section of the bottle stopper (3). Each sliding groove (31) includes two sections. The first section is inclined upward and the second section is straight. A limit stop (32) is integrally provided on the straight section of each sliding groove (31) near the end of the groove. The width of the two sliding grooves (31) is adapted to the stop post (12). The stop post (12) can slide in the sliding groove (31).

4. A beer bottle cap according to claim 3, characterized in that: The bottom of the rubber pad (4) is in support contact with the top of the ring platform (11), and the top of the rubber pad (4) abuts against the bottom ring surface of the upper section of the bottle stopper (3).

5. A beer bottle cap according to claim 4, characterized in that: The top cover (5) includes an outer anti-slip layer (51) and an inner connecting layer (52). The anti-slip layer (51) has outwardly protruding anti-slip ribs (511) evenly distributed around its circumference. The inner side of the connecting layer (52) is threadedly connected to the outer side of the upper step of the stepped shell (1).

6. A beer bottle cap according to claim 5, characterized in that: The top of the top cover (5) is integrally connected with two torsion protrusions (53), and a slot (54) is formed between the two torsion protrusions (53). The top of the upper section of the bottle stopper (3) has two semi-circular grooves (33), and a transmission plate (34) is formed between the two semi-circular grooves (33). The transmission plate (34) is adapted to the slot (54).