High-strength rubber plug

By setting a groove and shell structure inside the rubber stopper body, the problem of difficult rubber stopper penetration is solved, enabling convenient penetration and sealing of the syringe, and improving the service life of the rubber stopper.

CN224198298UActive Publication Date: 2026-05-05TAIZHOU KANGLONG PHARMA PACKAGING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIZHOU KANGLONG PHARMA PACKAGING
Filing Date
2025-06-17
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing rubber stoppers are difficult to penetrate efficiently when using a syringe.

Method used

A shell with a groove is provided inside the rubber stopper body, and an injection hole and a slide are provided. A sealing plate and a toggle block are rotatably installed in the slide. By providing a shell with a groove inside the rubber stopper body, the difficulty of syringe penetration is reduced, and the injection hole is sealed when the syringe is not in use.

Benefits of technology

It reduces the difficulty of penetrating the rubber stopper with a syringe and prevents foreign objects from entering when the syringe is not in use, thereby improving the sealing performance and service life of the rubber stopper.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a high-strength rubber plug, and belongs to the technical field of rubber plugs. The rubber plug solves the problems that the interior of an existing rubber plug is in an extruded tight state, but when an injector needs to penetrate through the rubber plug, the injector is difficult to penetrate through due to the fact that the interior of the rubber plug is extruded. The high-strength rubber plug comprises a rubber plug body, a shell is fixedly arranged in the rubber plug body, an empty groove is formed in the shell, an injection hole communicated with the empty groove is formed in the shell, a sliding groove communicated with the injection hole is formed in the inner wall of the shell, a sealing plate is rotationally arranged on the inner wall of the sliding groove, and the sealing plate makes close contact with the sliding groove. The rubber plug has the advantages that the thickness of the rubber plug body which needs to be penetrated by an injector is reduced, and the penetrating difficulty of the injector is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of rubber stopper technology and relates to a high-strength rubber stopper. Background Technology

[0002] Most existing bottled medicines are sealed with rubber stoppers. However, most existing rubber stoppers are solid. During sealing, due to the characteristics of rubber stoppers, the inside of the rubber stopper is in a tightly compressed state. However, when using a syringe to penetrate the rubber stopper, the syringe will have difficulty penetrating because the inside of the rubber stopper is compressed. Therefore, designing a high-strength rubber stopper is of great significance. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the prior art by providing a high-strength rubber stopper.

[0004] The objective of this utility model can be achieved through the following technical solution: a high-strength rubber stopper, characterized in that it includes a rubber stopper body, a shell is fixedly disposed inside the rubber stopper body, a hollow groove is opened inside the shell, an injection hole communicating with the hollow groove is opened on the shell, a sliding groove communicating with the injection hole is opened on the inner wall of the shell, a sealing plate is rotatably disposed on the inner wall of the sliding groove, and the sealing plate is in close contact with the sliding groove, and a toggle block is fixedly disposed on the sealing plate.

[0005] In the aforementioned high-strength rubber stopper, the main body of the rubber stopper is made of neoprene material.

[0006] In the aforementioned high-strength rubber stopper, a separating membrane is provided on the surface of the rubber stopper body, and the separating membrane is a polymer inert film.

[0007] Compared with existing technologies, this high-strength rubber stopper reduces the thickness of the rubber stopper body that the syringe needs to penetrate when using a syringe to penetrate the rubber stopper body by setting a shell with a hollow groove inside the rubber stopper body. This reduces the difficulty of syringe penetration. Attached Figure Description

[0008] Figure 1 This is a three-dimensional schematic diagram of a high-strength rubber stopper.

[0009] Figure 2 This is a schematic diagram of the injection hole structure of this high-strength rubber stopper.

[0010] Figure 3 This is a schematic diagram of the hollow groove structure of this high-strength rubber stopper.

[0011] In the diagram, 1 is the rubber stopper body; 2 is the shell; 3 is the groove; 4 is the injection hole; 5 is the slide; 6 is the sealing plate; 7 is the actuating block; and 8 is the isolation membrane. Detailed Implementation

[0012] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0013] like Figure 1-3 As shown, this high-strength rubber stopper includes a rubber stopper body 1, a housing 2 fixedly disposed inside the rubber stopper body 1, a groove 3 formed inside the housing 2, an injection hole 4 communicating with the groove 3 on the housing 2, a sliding groove 5 communicating with the injection hole 4 on the inner wall of the housing 2, a sealing plate 6 rotatably disposed on the inner wall of the sliding groove 5, and the sealing plate 6 in close contact with the sliding groove 5, and a toggle block 7 fixedly disposed on the sealing plate 6. By setting a housing 2 with a groove 3 inside the rubber stopper body 1, the amount of rubber that the syringe needs to penetrate when penetrating the rubber stopper body 1 is reduced. The thickness of the rubber stopper body 1 reduces the difficulty of syringe penetration. The shell 2 and the rubber stopper body 1 can be fixed by material bonding. When the rubber stopper body 1 is subjected to lateral pressure, the shell 2 can also provide a good support effect for the rubber stopper body 1. When the rubber stopper body 1 is not needed for the use of syringe, the moving toggle block 7 can rotate the sealing plate 6 to seal the injection hole 4 and prevent foreign objects from entering the interior of the rubber stopper body 1. The sealing plate 6 and the shell 2 are in close contact and have a certain friction force. It will not rotate on its own without manual operation.

[0014] Preferably, the rubber stopper body 1 is made of neoprene material, which has good aging resistance and improves the service life of the rubber stopper body 1.

[0015] Preferably, the surface of the rubber stopper body 1 is provided with a separating membrane 8, which is a polymer inert film that can prevent the medicine in the medicine bottle from contacting the rubber stopper body 1 and causing contamination to the rubber stopper body 1.

[0016] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0017] Although this document uses a number of technical terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A high-strength rubber stopper, characterized in that, The device includes a rubber stopper body (1), a housing (2) is fixedly installed inside the rubber stopper body (1), a hollow groove (3) is opened inside the housing (2), an injection hole (4) is opened on the housing (2) and communicates with the hollow groove (3), a sliding groove (5) is opened on the inner wall of the housing (2) and communicates with the injection hole (4), a sealing plate (6) is rotatably installed on the inner wall of the sliding groove (5), and the sealing plate (6) is in close contact with the sliding groove (5), and a toggle block (7) is fixedly installed on the sealing plate (6).

2. The high-strength rubber stopper according to claim 1, characterized in that, The rubber stopper body (1) is made of neoprene.

3. The high-strength rubber stopper according to claim 1, characterized in that, The surface of the rubber stopper body (1) is provided with an isolation membrane (8), which is a polymer inert film.