Simple puncture cap and puncture bottle
By rolling the aluminum outer shell with the bottle mouth to form a seal, combined with the design of the puncture component and inner plug assembly, the problem of complex structure and poor sealing of existing puncture caps is solved, providing a simple way to separate powder and liquid and drink it, ensuring sealing and convenient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIBIN PLASTIC PACKAGING MATERIALS CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-09
AI Technical Summary
The existing puncture cap has a complex structure, is inconvenient to operate, and has poor sealing performance.
The aluminum outer shell is rolled to form a sealed fit with the bottle mouth. Combined with the piercing element, inner plug assembly and limiting structure, it can separate powdered or liquid food from liquid. The design of tear ring and limiting plate provides two opening methods for easy use.
It achieves the separation of powdered or liquid food from liquid, providing a convenient drinking option, ensuring good sealing performance and simple structure, preventing the puncture element from moving when not opened, and has good sealing and connection effects.
Smart Images
Figure CN224336169U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bottle cap technology, and more specifically to the field of a simple puncture cap and puncture bottle technology. Background Technology
[0002] A puncture cap is a detachable component used to seal medicine bottles (such as vials or infusion bottles) or food bottles, and typically includes a puncture point. Existing patents disclose the following:
[0003] The patent with publication number CN113800116A and patent name "Piercing Bottle Cap and Bottle" discloses the following: It includes an upper cap and a lower cap. A sealing boss is provided on the top inner wall of the upper cap. A cutting blade is provided below the sealing boss. The root of the cutting blade is connected to the inner wall of the sealing boss. A sealing piece is provided inside the lower cap. The upper cap is fixedly and can be screwed down and moved down on top of the lower cap. The upper inner wall of the lower cap is sealed to the outer wall of the sealing boss. A storage chamber for holding basic raw materials is formed between the inner wall of the sealing boss, the inner wall of the lower cap located above the sealing piece, the top of the sealing piece, and the top inner wall of the upper cap. The end of the cutting blade extends downward to above the edge of the sealing piece. When the upper cap is in a screwed down and moved down state, the cutting blade moves down to a position that abuts against the sealing piece, and the cutting blade cuts the sealing piece along the edge of the sealing piece. This invention solves the technical problems of poor sealing performance of bottle caps with separate sealed storage spaces and inconvenience in opening the sealed chambers.
[0004] Patent CN112353687B, entitled "A Puncture-Free Infusion Bottle Cap," discloses the following: A bottle cap body and a flexible handle mounted on the bottle cap body are included. The bottle cap body contains a rubber stopper and a clip to hold the stopper. The flexible handle includes a connecting part directly connected to the bottle cap body and a rotatable rotating part sleeved above the connecting part. The rotating part has a receiving cavity for accommodating a telescopic rod. The inner wall of the receiving cavity has internal threads, and the head of the telescopic rod is located on an external thread that mates with the inner wall of the receiving cavity. The lower part of the rubber stopper has several first oblique teeth, and the upper surface of the clip has several second oblique teeth that match the first oblique teeth of the rubber stopper. When the first oblique teeth are pressed downwards by an external force, causing the clip to rotate, the notch aligns with the fluid flow channel, allowing the medication to flow freely through the channel. Compared to existing infusion bottle caps containing rubber stoppers, this invention allows medication to be obtained without puncture, avoiding contamination of the medication by debris during puncture.
[0005] The aforementioned puncture cap has a complex structure, making it inconvenient to operate. Utility Model Content
[0006] The purpose of this utility model is to provide a simple puncture cap in order to solve the above-mentioned technical problems.
[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0008] One aspect of this utility model provides a simplified puncture cap, comprising an aluminum shell, a puncture component, an inner plug assembly, and a bottle opening; the hollow space inside the puncture component contains powdered or liquid food, the lower part of the puncture component is sealed within the inner plug assembly, the lower part of the inner plug assembly is sealed within the bottle opening, and the puncture component, the inner plug assembly, and the bottle opening, when assembled, are all fitted inside the aluminum shell; the bottom of the aluminum shell is at the bottle opening, and they are in a tight fit.
[0009] Specifically, this solution enables the separation of powdered or liquid food from liquid. When drinking, you can choose whether to add the powdered or liquid food from the bottle cap into the bottle: if not, you can directly unscrew the cap to drink; if you want to add, you need to first tear off the tear ring on the aluminum shell, pull out the top cap, rotate the piercing piece at a certain angle, and then press down on the piercing piece to pierce the thin-walled ring of the inner stopper. At this time, the powdered or liquid food in the hollow part of the piercing piece enters the bottle, and shake the bottle to fully mix it with the liquid in the bottle. Finally, unscrew the bottom cap to drink the fully mixed beverage in the bottle.
[0010] This solution uses an aluminum shell. When assembling the aluminum shell with the bottle neck, a rolling device is used to roll the unthreaded aluminum shell onto the bottle neck to form the lower cover of the aluminum shell, thus completing the sealing and fit between the aluminum shell and the bottle neck. This method has the advantages of good sealing performance and simple cap structure.
[0011] In one embodiment, the aluminum casing includes an upper cover, a tear ring, a threaded portion, a lower cover, and an anti-theft ring that are sequentially and sealed together. The lower cover and the anti-theft ring are detachably connected, and both the lower cover and the anti-theft ring are rolled onto the bottle mouth by a rolling device to form a sealed fit.
[0012] In one embodiment, the puncture device includes a puncture cylinder, multiple sets of puncture alignment ribs evenly distributed around the top of the puncture cylinder, a puncture limiting plate disposed below the puncture alignment ribs, and a cutting blade disposed at the bottom of the puncture cylinder.
[0013] In one embodiment, the inner plug assembly includes a support cylinder disposed at the top and a connecting cylinder connected to the bottom of the support cylinder. The support cylinder and the connecting cylinder are coaxially arranged, and the diameter of the support cylinder is larger than the diameter of the connecting cylinder. A sealing ring plate is provided between the inner wall of the bottom of the support cylinder and the outer wall of the top of the connecting cylinder. Multiple sets of inner plug limiting ribs, each corresponding to a set of multiple sets of puncture alignment ribs, are evenly distributed on the inner wall of the support cylinder. An inner plug alignment gap that cooperates with the puncture limiting plate is provided on the inner wall of the support cylinder. An inner plug bottom disc is sealed at the bottom of the outer wall of the connecting cylinder.
[0014] In one embodiment, the top of the outer wall of the bottle opening is provided with an upper thread, and the bottom of the outer wall of the bottle opening is provided with a retaining ring.
[0015] In one embodiment, the upper thread engages with the upper cover thread, and the anti-theft ring and the retaining ring are in an upper and lower engagement state, serving as a connection.
[0016] In one embodiment, the puncture outer wall protrusion ring on the puncture cylinder located between the puncture limiting plate and the cutting blade is in an interference fit with the inner wall of the connecting cylinder, thus serving a sealing function.
[0017] In one embodiment, an inner plug outer wall protrusion ring is provided on the outer wall of the connecting cylinder, and the inner plug outer wall protrusion ring is in an interference fit with the inner wall of the bottle mouth, which serves as a seal.
[0018] Specifically, after the bottle cap is assembled, the puncture limiting plate and the inner plug limiting rib are in an upper and lower limiting state, which plays a limiting role and prevents the puncture part from moving downward when the bottle cap is not opened; the outer wall protrusion ring of the puncture part and the inner wall of the inner plug are in an interference fit state, which plays a sealing role; the outer wall protrusion ring of the inner plug and the inner wall of the bottle mouth are in an interference fit state, which plays a sealing role; the anti-theft ring and the retaining ring are in an upper and lower fitting state, which plays a connecting role.
[0019] Another aspect of this utility model provides a puncture bottle, including the aforementioned simplified puncture cap.
[0020] The assembly of the simplified puncture cap involves the following steps:
[0021] The first step is to fill the hollow part of the piercing device with powdered or liquid food, and then assemble the piercing device with the inner plug assembly. The piercing limiting plate and the inner plug limiting rib should be in the upper and lower limiting state.
[0022] The second step, based on the first step, is to attach the aluminum outer shell to the outside of the puncture component and the inner plug assembly to complete the bottle cap assembly.
[0023] The third step is to attach the bottle cap assembled in the second step to the bottle mouth, and then use a rolling device to press the aluminum shell onto the outer surface of the bottle mouth, thus completing the assembly of the simple puncture cap and the bottle mouth.
[0024] There are two opening methods to choose from when opening the puncture cover:
[0025] First method of opening the puncture cap:
[0026] The puncture cap opening method allows for the mixing and consumption of powdered or liquid food products from the bottle without adding them to the cap.
[0027] The opening method involves directly rotating the aluminum outer cap, causing the upper part of the aluminum outer cap to move upward and separate from the anti-theft ring, and the piercing part and inner plug assembly to move upward with the aluminum outer shell and separate from the bottle mouth, thus completing the opening of the bottle cap.
[0028] The second method for opening the puncture cap:
[0029] The puncture cap opening method involves adding the powdered or liquid food from the cap into the bottle for mixing and consumption. This opening method consists of the following steps:
[0030] First, tear open the tear ring on the aluminum outer cover and pull the top cover of the aluminum outer shell upwards;
[0031] The second step is to rotate the puncture piece at a certain angle so that the puncture limiting plate and the inner plug are aligned, and at the same time, the puncture piece alignment rib is located in the gap between the inner plug limiting rib.
[0032] Third step, press the piercing piece firmly. At this time, the thin-walled ring inside the inner wall is pierced by the cutting blade, the direction of the bottom circular piece of the inner plug changes, and the powdery or liquid food in the hollow part of the piercing piece enters the bottle. At this time, shake the bottle to make it fully mix with the liquid in the bottle.
[0033] Fourth step: Rotate the aluminum outer cover to move the lower cover upwards and separate it from the anti-theft ring.
[0034] The piercing element and inner plug assembly move upward with the aluminum outer shell and separate from the bottle opening, thus opening the bottle cap.
[0035] The beneficial effects of this utility model are as follows:
[0036] 1. This utility model can separate powdered or liquid food from liquid. When drinking, you can choose whether to add the powdered or liquid food from the bottle cap into the bottle: if not, you can directly unscrew the bottle cap to drink; if you want to add, you need to first tear off the tear ring on the aluminum shell, pull out the top cap, rotate the piercing part at a certain angle, and then press down on the piercing part to pierce the thin-walled ring of the inner stopper. At this time, the powdered or liquid food in the hollow part of the piercing part enters the bottle, and shake the bottle to make it fully mixed with the liquid in the bottle. Finally, unscrew the bottom cap to drink the fully mixed beverage in the bottle.
[0037] 2. This utility model uses an aluminum shell. When assembling the aluminum shell with the bottle mouth, the unthreaded aluminum shell is rolled onto the bottle mouth using a rolling device to form the lower cover of the aluminum shell, thus completing the sealing and fit between the aluminum shell and the bottle mouth. This method has the advantages of good sealing performance and simple bottle cap structure.
[0038] 3. After the bottle cap is assembled, the puncture limiting plate and the inner plug limiting rib are in the upper and lower limiting state, which plays a limiting role and prevents the puncture part from moving downward when the bottle cap is not opened; the outer wall protrusion ring of the puncture part and the inner wall of the inner plug are in an interference fit state, which plays a sealing role; the outer wall protrusion ring of the inner plug and the inner wall of the bottle mouth are in an interference fit state, which plays a sealing role; the anti-theft ring and the retaining ring are in an upper and lower fitting state, which plays a connecting role. Attached Figure Description
[0039] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0040] Figure 1 This is a schematic diagram of the structure of this utility model;
[0041] Figure 2 yes Figure 1 Detailed structural diagram;
[0042] Figure 3 yes Figure 2 A partial sectional view;
[0043] Figure 4 This is a schematic diagram of the second method of opening the puncture cap in the embodiment;
[0044] Figure 5 This is a schematic diagram of the first method of opening the puncture cap in the embodiment;
[0045] Figure 6 It is an external outline diagram of the opening process of opening method one;
[0046] Figure 7 yes Figure 1 External outline view after assembly;
[0047] Reference numerals: 1. Aluminum outer shell; 2. Puncture element; 3. Inner plug assembly; 4. Bottle neck;
[0048] 11. Top cover; 12. Tear ring; 13. Threaded part; 14. Bottom cover; 15. Anti-theft ring;
[0049] 21. Piercing the alignment rib; 22. Piercing the limiting plate; 23. Cutting disc; 24. Hollow area; 25. Piercing the outer wall protruding ring;
[0050] 31. Inner plug limiting rib; 32. Inner plug alignment gap; 33. Inner plug bottom disc; 34. Inner plug outer wall convex ring;
[0051] 41. Top thread; 42. Snap ring. Detailed Implementation
[0052] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0053] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0054] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0055] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0056] Example 1
[0057] like Figures 1 to 7 As shown, this embodiment provides a simple puncture cap, including an aluminum shell 1, a puncture component 2, an inner plug assembly 3, and a bottle opening 4; the hollow space 24 inside the puncture component 2 contains powdered or liquid food, the lower part of the puncture component 2 is sealed inside the inner plug assembly 3, the lower part of the inner plug assembly 3 is sealed inside the bottle opening 4, and the puncture component 2, the inner plug assembly 3, and the bottle opening 4 are all fitted inside the aluminum shell 1; the bottom of the aluminum shell 1 is at the bottle opening 4, and they are in a tight fit.
[0058] Specifically, this solution can separate powdered or liquid food from liquid. When drinking, you can choose whether to add the powdered or liquid food from the bottle cap into the bottle: if not, you can directly unscrew the bottle cap to drink; if you want to add, you need to first tear off the tear ring 12 on the aluminum outer shell 1, pull out the top cap 11, rotate the piercing piece 2 at a certain angle, and then press down on the piercing piece 2 to pierce the thin-walled ring of the inner stopper. At this time, the powdered or liquid food in the hollow part 24 of the piercing piece 2 enters the bottle, and shake the bottle to make it fully mixed with the liquid in the bottle. Finally, unscrew the bottom cap 14 to drink the fully mixed beverage in the bottle.
[0059] This solution uses an aluminum outer shell 1. When assembling the aluminum outer shell 1 with the bottle mouth 4, the unthreaded aluminum outer shell 1 is rolled onto the bottle mouth 4 using a rolling device to form the lower cover 14 of the aluminum outer shell 1, thus completing the sealing and fit between the aluminum outer shell 1 and the bottle mouth 4. This method has the advantages of good sealing performance and simple bottle cap structure.
[0060] In one embodiment, the aluminum outer casing 1 includes an upper cover 11, a tear ring 12, a threaded portion 13, a lower cover 14, and an anti-theft ring 15 that are sequentially and sealed together. The lower cover 14 and the anti-theft ring 15 are connected in a detachable manner. Both the lower cover 14 and the anti-theft ring 15 are rolled onto the bottle mouth 4 by a rolling device to form a sealed fit.
[0061] In one embodiment, the puncture component 2 includes a puncture cylinder, multiple sets of puncture alignment ribs 21 evenly distributed around the top of the puncture cylinder, a puncture limiting plate 22 disposed below the puncture alignment ribs 21, and a cutting blade 23 disposed at the bottom of the puncture cylinder.
[0062] In one embodiment, the inner plug assembly 3 includes a support cylinder disposed at the top and a connecting cylinder connected to the bottom of the support cylinder. The support cylinder and the connecting cylinder are coaxially arranged, and the diameter of the support cylinder is larger than the diameter of the connecting cylinder. A sealing ring plate is provided between the inner wall of the bottom of the support cylinder and the outer wall of the top of the connecting cylinder. Multiple sets of inner plug limiting ribs 31 corresponding to multiple sets of puncture alignment ribs 21 are evenly distributed on the inner wall of the support cylinder. An inner plug alignment gap 32 that cooperates with the puncture limiting plate 22 is provided on the inner wall of the support cylinder. An inner plug bottom disc 33 is sealed at the bottom of the outer wall of the connecting cylinder.
[0063] In one embodiment, the top of the outer wall of the bottle mouth 4 is provided with an upper thread 41, and the bottom of the outer wall of the bottle mouth 4 is provided with a retaining ring 42.
[0064] In one embodiment, the upper thread 41 is threadedly engaged with the upper cover 11, and the anti-theft ring 15 and the retaining ring 42 are in an upper and lower engagement state, serving as a connection.
[0065] In one embodiment, the puncture outer wall protrusion 25 on the puncture cylinder located between the puncture limiting plate 22 and the cutting blade 23 is in an interference fit with the inner wall of the connecting cylinder, and plays a sealing role.
[0066] In one embodiment, an inner plug outer wall protrusion ring 34 is provided on the outer wall of the connecting cylinder. The inner plug outer wall protrusion ring 34 is in an interference fit with the inner wall of the bottle mouth 4, which serves as a seal.
[0067] Specifically, after the bottle cap is assembled, the puncture limiting plate 22 and the inner plug limiting rib 31 are in an upper and lower limiting state, which plays a limiting role and prevents the puncture part 2 from moving downward when the bottle cap is not opened; the outer wall protrusion ring of the puncture part 2 and the inner wall of the inner plug are in an interference fit state, which plays a sealing role; the outer wall protrusion ring 34 of the inner plug and the inner wall of the bottle mouth 4 are in an interference fit state, which plays a sealing role; the anti-theft ring 15 and the retaining ring 42 are in an upper and lower fitting state, which plays a connecting role.
[0068] Another aspect of this utility model provides a puncture bottle, including the aforementioned simplified puncture cap.
[0069] The assembly of the simplified puncture cap involves the following steps:
[0070] The first step is to fill the hollow 24 of the piercing part 2 with powdered or liquid food, and then assemble the piercing part 2 with the inner plug assembly 3. The piercing limiting plate 22 and the inner plug limiting rib 31 should be in the upper and lower limiting state.
[0071] The second step, based on the first step, is to attach the aluminum outer shell 1 to the outside of the puncture part 2 and the inner plug assembly 3 to complete the bottle cap assembly.
[0072] The third step is to attach the bottle cap assembled in the second step to the bottle mouth 4, and then use a rolling device to press the aluminum outer shell 1 onto the outer surface of the bottle mouth 4, thus completing the assembly of the simple puncture cap and the bottle mouth 4.
[0073] There are two opening methods to choose from when opening the puncture cover:
[0074] First method of opening the puncture cap:
[0075] The puncture cap opening method allows for the mixing and consumption of powdered or liquid food products from the bottle without adding them to the cap.
[0076] The opening method involves directly rotating the aluminum outer cap, causing the portion above the lower cover 14 of the aluminum outer cap to move upward and separate from the anti-theft ring 15, and the piercing part 2 and the inner plug assembly 3 to move upward with the aluminum outer shell 1 and separate from the bottle mouth 4, thus completing the opening of the bottle cap.
[0077] The second method for opening the puncture cap:
[0078] The puncture cap opening method involves adding the powdered or liquid food from the cap into the bottle for mixing and consumption. This opening method consists of the following steps:
[0079] First, tear open the tear ring 12 of the aluminum outer cover and pull the top cover 11 of the aluminum outer shell 1 upwards;
[0080] The second step is to rotate the puncture piece 2 by a certain angle so that the puncture limiting plate 22 and the inner plug are aligned in the alignment gap.
[0081] At the same time, the puncture piece 2 is positioned in the gap between the inner plug limiting rib 31;
[0082] Third step, press the puncture piece 2 firmly. At this time, the thin-walled inner ring is punctured by the cutting piece 23, the direction of the bottom circular piece 33 of the inner plug changes, and the powdered or liquid food in the hollow part 24 of the puncture piece 2 enters the bottle. At this time, shake the bottle to make it fully mix with the liquid in the bottle.
[0083] Fourth step: Rotate the aluminum outer cap so that the lower cover 14 of the aluminum outer cap moves upward and separates from the anti-theft ring 15, and the piercing part and inner plug assembly 3 move upward with the aluminum outer shell 1 and separate from the bottle mouth 4, thus completing the opening of the bottle cap.
Claims
1. A simple puncture cap, characterized in that, The device includes an aluminum shell (1), a piercing element (2), an inner plug assembly (3), and a bottle opening (4). The hollow part (24) inside the piercing element (2) contains powdered or liquid food. The lower part of the piercing element (2) is sealed inside the inner plug assembly (3), and the lower part of the inner plug assembly (3) is sealed inside the bottle opening (4). The piercing element (2), the inner plug assembly (3), and the bottle opening (4) are all fitted inside the aluminum shell (1). The bottom of the aluminum shell (1) is at the bottle opening (4), and they fit tightly together.
2. The simplified puncture cap according to claim 1, characterized in that, The aluminum outer shell (1) includes an upper cover (11), a tear ring (12), a threaded part (13), a lower cover (14), and an anti-theft ring (15) that are sequentially sealed together. The lower cover (14) and the anti-theft ring (15) are connected in a detachable manner. The lower cover (14) and the anti-theft ring (15) are both rolled on the bottle mouth (4) by a rolling device to form a sealed fit.
3. The simplified puncture cap according to claim 2, characterized in that, The puncture component (2) includes a puncture cylinder, multiple sets of puncture alignment ribs (21) evenly distributed around the top of the puncture cylinder, a puncture limiting plate (22) located below the puncture alignment ribs (21), and a cutting blade (23) located at the bottom of the puncture cylinder.
4. A simplified puncture cap according to claim 3, characterized in that, The inner plug assembly (3) includes a support cylinder disposed at the top and a connecting cylinder connected to the bottom of the support cylinder. The support cylinder and the connecting cylinder are coaxially arranged. The diameter of the support cylinder is larger than the diameter of the connecting cylinder. A sealing ring plate is provided between the inner wall of the bottom of the support cylinder and the outer wall of the top of the connecting cylinder. Multiple sets of inner plug limiting ribs (31) are evenly distributed on the inner wall of the support cylinder, corresponding one-to-one with multiple sets of puncture alignment ribs (21). An inner plug alignment gap (32) that cooperates with the puncture limiting plate (22) is provided on the inner wall of the support cylinder. An inner plug bottom disc (33) is sealed at the bottom of the outer wall of the connecting cylinder.
5. A simplified puncture cap according to claim 4, characterized in that, The top of the outer wall of the bottle mouth (4) is provided with an upper thread (41), and the bottom of the outer wall of the bottle mouth (4) is provided with a retaining ring (42).
6. A simplified puncture cap according to claim 5, characterized in that, The upper thread (41) is threadedly engaged with the upper cover (11), and the anti-theft ring (15) and the retaining ring (42) are in an upper and lower engagement state, serving as a connection.
7. A simplified puncture cap according to claim 6, characterized in that, The puncture outer wall protrusion ring (25) is located on the puncture cylinder between the puncture limiting plate (22) and the cutting blade (23). The puncture outer wall protrusion ring (25) is in an interference fit with the inner wall of the connecting cylinder and plays a sealing role.
8. A simplified puncture cap according to claim 6, characterized in that, The outer wall of the connecting cylinder is provided with an inner plug outer wall protrusion ring (34), which is in an interference fit with the inner wall of the bottle mouth (4) and plays a sealing role.
9. A puncture bottle, characterized in that, Includes a simplified puncture cap as described in any one of claims 1 to 8.