Penicillin bottle compression molding cover

By designing a vial compression cap, using a claw to snap the connection between the vial body and an interference fit to clamp the rubber stopper, the problems of unstable aluminum capping and the need for sterilization of the rubber stopper were solved, achieving simple sealing and aseptic capping.

CN224184886UActive Publication Date: 2026-05-01WU XI DA CHENG HIGH-TECH MATERIALS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WU XI DA CHENG HIGH-TECH MATERIALS TECH CO LTD
Filing Date
2025-02-26
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional aluminum capping of vials is cumbersome and inconsistent, posing a risk of leaks. The puncture surface of the rubber stopper requires additional sterilization, making the process complicated.

Method used

Design a vial compression cap, including a first shell and a second shell. The shell is provided with a claw and an opening valve. The claw is connected to the vial body by snapping. The second shell is interference-fitted with the first shell to clamp the rubber stopper, so as to realize manual compression capping. The opening valve ensures the sterility of the rubber stopper.

Benefits of technology

Simplify the capping process, improve sealing and assembly reliability, avoid metal shavings contamination, ensure sterility of the rubber stopper puncture surface, and reduce operational difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of penicillin bottle packaging, and discloses a penicillin bottle compression molding cover which covers a penicillin bottle body, the penicillin bottle compression molding cover comprises a first shell, a second shell and a rubber plug, a clamping jaw is arranged on the inner wall of the first shell, and the clamping jaw is used for clamping a bottle neck of the penicillin bottle body; the first shell is sleeved with the opening end of the second shell in an interference mode, a puncture opening is formed in the closed end of the second shell, an opening valve is arranged on the puncture opening, and the opening valve is used for sealing the puncture opening before opening; the rubber plug is clamped between the first shell and the second shell and used for sealing a bottle opening of the penicillin bottle body. According to the penicillin bottle compression molding cover, the clamping jaw of the first shell is connected with the penicillin bottle body in a buckled mode, the second shell and the first shell are in interference fit to clamp the rubber plug, simple manual compression molding capping of the penicillin bottle is achieved, the opening valve on the second shell guarantees the sterile state of the puncture face of the rubber plug, and the use requirement is met.
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Description

Technical Field

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

[0002] Traditional aluminum caps for vials require crimping equipment to seal the vial opening, which is inconvenient. While existing molded caps for vials solve the drawbacks of cumbersome crimping, inconsistent results, and aluminum shavings contaminating the cleanroom environment, they still have the following problems: 1) The crimping connection between the molded cap and the vial body is not always secure, and some products may even be rotatable due to dimensional tolerance issues, leading to potential sealing risks; 2) The puncture surface of the vial stopper is a non-sterile seal with gaps, requiring sterilization of the puncture surface before puncturing the stopper, which is cumbersome. Utility Model Content

[0003] The purpose of this utility model is to provide a vial compression cap to solve the problems mentioned in the background art, optimize the structure of the vial cap, realize manual compression capping, and ensure assembly reliability and sealing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A vial compression-molded cap is affixed to the vial body. The vial compression-molded cap includes a first shell, a second shell, and a rubber stopper, wherein:

[0006] The first shell is a double-opening cylindrical shape, and the inner wall of the first shell is provided with claws, which are used to hold the neck of the vial body;

[0007] The second housing is a single-opening cylindrical shape. The open end of the second housing is interference-fitted onto the first housing. A puncture port is provided on the closed end of the second housing. An opening valve is provided on the puncture port. The opening valve is used to close the puncture port before opening.

[0008] A rubber stopper is sandwiched between the first housing and the second housing, and is used to seal the mouth of the vial.

[0009] As an alternative, the claw is integrally formed with the first housing, and the claw is in the shape of an annular plate and is arranged at a 45° angle toward the side of the rubber stopper.

[0010] As an alternative, the diameter of the clamp is smaller than the diameter of the mouth of the vial body but larger than the diameter of the neck of the vial body.

[0011] As an alternative, the rubber stopper has a raised portion on the surface near the vial body, which contacts and seals the vial opening.

[0012] As an alternative, one end of the opening valve is embedded in the puncture port, while the other end of the opening valve extends beyond the edge of the second housing.

[0013] As an alternative, the material of the first housing can be any one of ABS, PC, COC, COP, and CBC.

[0014] As an optional option, the second shell can be made of any one of COC, COP, CBC, or PP.

[0015] The beneficial effects of this utility model are:

[0016] The vial compression cap is connected to the vial body via a latch on the first housing, and the rubber stopper is clamped by an interference fit between the second housing and the first housing. This enables simple manual compression capping of the vial body, reducing the difficulty of capping and bringing more convenience to the use of the vial. In addition, the opening valve on the second housing ensures the sterility of the puncture surface of the rubber stopper, meeting the usage requirements. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the vial compression cap provided in this embodiment of the utility model.

[0018] In the attached image:

[0019] 1. Vial body; 2. First shell; 3. Second shell; 4. Rubber stopper; 5. Claw; 6. Puncture port; 7. Opening valve; 8. Protrusion. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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.

[0024] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.

[0025] Please see Figure 1 As shown, this embodiment provides a vial compression cap, which is affixed to the vial body 1. The vial compression cap includes a first housing 2, a second housing 3, and a rubber stopper 4, wherein:

[0026] The first housing 2 is a double-opening cylindrical shape. The inner wall of the first housing 2 is provided with a claw 5, which is used to hold the neck of the vial body 1.

[0027] The second housing 3 is a single-opening cylindrical shape. The open end of the second housing 3 is interference-fitted onto the first housing 2. A puncture port 6 is provided on the closed end of the second housing 3. An opening valve 7 is provided on the puncture port 6. The opening valve 7 is used to close the puncture port 6 before opening.

[0028] The rubber stopper 4 is sandwiched between the first housing 2 and the second housing 3, and is used to seal the mouth of the vial body 1.

[0029] Thus, by using the claws 5 of the first housing 2 to snap onto the vial body 1, and by using the interference fit between the second housing 3 and the first housing 2 to clamp the rubber stopper 4, simple manual compression capping of the vial body 1 is achieved, reducing the difficulty of capping and bringing more convenience to the use of the vial; in addition, the opening valve 7 on the second housing 3 ensures the sterility of the puncture surface of the rubber stopper 4, meeting the usage requirements.

[0030] Optionally, the claw 5 is integrally formed with the first housing 2, and the claw 5 is in the shape of an annular plate and is arranged at an angle of 45° toward one side of the rubber stopper 4.

[0031] Therefore, the 45° tilted claw 5 facilitates the insertion and fixation of the vial body 1, while ensuring even force distribution on the rubber stopper 4, thus improving the sealing effect. The vial compression cap has a compact overall structure, is easy to operate, and is suitable for various sizes of vials, greatly improving efficiency and safety.

[0032] Furthermore, the diameter of the claw 5 is smaller than the mouth diameter of the vial body 1 but larger than the neck diameter of the vial body 1.

[0033] This ensures that the claw 5 can tightly grip the neck of the vial body 1 without damaging the mouth of the vial body 1, guaranteeing that the claw 5 accurately fixes the vial body 1 and preventing leakage of the contents due to vibration or tilting during transportation and use, thereby further improving the overall sealing performance and safety of use.

[0034] Optionally, a protrusion 8 is provided on the surface of the rubber stopper 4 near the vial body 1, and the protrusion 8 contacts and seals the vial body 1.

[0035] Therefore, the rubber protrusion 8 can be adapted to the mouth of various sizes of vial body 1, thereby enhancing the sealing effect and preventing leakage of the contents of the vial.

[0036] Optionally, one end of the opening valve 7 is embedded in the puncture port 6, and the other end of the opening valve 7 extends beyond the edge of the second housing 3, thereby facilitating manual opening of the opening valve 7.

[0037] Optionally, the material of the first housing 2 is ABS, PC, COC, COP, CBC, etc. These materials can greatly increase the strength of the claw 5 in engaging with the vial and greatly improve the sealing performance of the vial's molded cap.

[0038] Optionally, the second shell 3 can be made of materials such as COC, COP, CBC, or PP. These materials have good heat resistance and impact resistance, ensuring stable performance under high temperature or high pressure conditions, and further improving the durability and safety of the overall structure.

[0039] In summary, the vial compression cap has the following advantages:

[0040] 1) The crimped cap does not shed any aluminum shavings, thus avoiding contamination of the cleanroom environment and the vial body;

[0041] 2) Uniformity and stability of capping are achieved by relying on the product's size design, eliminating the need for capping equipment;

[0042] 3) The manual compression molding and capping process is simple, bringing more convenience to small-batch drug production;

[0043] 4) The presence of valve 7 ensures that the puncture surface of the rubber stopper 4 is sterile.

[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A push-on cap for a vial, the cap being arranged on a vial body (1), characterized in that The vial compression cap includes a first housing (2), a second housing (3), and a rubber stopper (4), wherein: The first housing (2) is a double-opening cylindrical shape, and a claw (5) is provided on the inner wall of the first housing (2). The claw (5) is used to hold the bottleneck of the vial body (1). The second housing (3) is a single-opening cylindrical shape. The open end of the second housing (3) is interference-fitted onto the first housing (2). A puncture port (6) is provided on the closed end of the second housing (3). An opening valve (7) is provided on the puncture port (6). The opening valve (7) is used to close the puncture port (6) before opening. The rubber stopper (4) is sandwiched between the first housing (2) and the second housing (3), and the rubber stopper (4) is used to seal the mouth of the vial body (1).

2. The vial compression cap according to claim 1, characterized in that, The claw (5) is integrally formed with the first housing (2), and the claw (5) is in the shape of an annular piece and is arranged at an angle of 45° toward one side of the rubber stopper (4).

3. The vial compression cap according to claim 2, characterized in that, The diameter of the claw (5) is smaller than the mouth diameter of the vial body (1) and larger than the bottleneck diameter of the vial body (1).

4. The press-on cap for a Schlenk flask according to claim 1, wherein The rubber stopper (4) has a protrusion (8) on the surface near the vial body (1), and the protrusion (8) contacts and seals the vial body (1).

5. The press-on bottle cap of claim 1 wherein, One end of the opening valve (7) is embedded in the puncture port (6), and the other end of the opening valve (7) extends beyond the edge of the second housing (3).

6. The press-on bottle cap of claim 1 wherein, The material of the first housing (2) is any one of ABS, PC, COC, COP, and CBC.

7. The press-on bottle cap of claim 1 wherein, The material of the second shell (3) is any one of COC, COP, CBC, and PP.