Novel special-shaped anti-jumping freeze-dried rubber plug

Abstract

This utility model discloses a novel irregular-shaped anti-jump freeze-dried rubber stopper, relating to the field of rubber stopper anti-jump technology, including a rubber cap; the rubber cap is provided with multiple positioning grooves; multiple fan-shaped walls are provided on the side of the rubber cap away from the positioning grooves, wherein a U-shaped notch is opened between two adjacent fan-shaped walls; two sealing strips are provided on the outer side of each of the multiple fan-shaped walls, and an anti-jump positioning ball is provided in the middle of the sealing strip on each fan-shaped wall; in use, the contact between the sealing strip and the inner wall of the bottle mouth by the anti-jump positioning ball effectively prevents the rubber stopper from jumping during use, effectively ensuring the seal of the rubber stopper on the bottle mouth.

Description

Technical Field

[0001] This utility model specifically relates to the field of anti-jumping rubber stopper technology, and more specifically to a novel irregular-shaped anti-jumping freeze-dried rubber stopper. Background Technology

[0002] With the continuous development of biomedical technology, freeze-drying technology has been increasingly widely used in the pharmaceutical industry. Freeze-drying can effectively maintain the activity and stability of drugs and extend their shelf life. In the freeze-drying process, drugs are frozen to extremely low temperatures, and then the water is directly sublimated in a vacuum environment to obtain dried drugs. As a key component of freeze-dried drug packaging, the performance of freeze-dried rubber stoppers directly affects the quality and safety of drugs.

[0003] Traditional rubber stoppers are prone to jumping during use, especially in freeze-drying equipment. This may be due to insufficient friction between the stopper and the container, or uneven pressure on the stopper under vacuum. Jumping not only affects the freeze-drying effect of the drug but may also lead to contamination. Furthermore, the sealing performance between the stopper and container in traditional freeze-drying stoppers is not ideal, allowing air and moisture to enter and affecting drug quality. Especially during transportation and storage, factors such as vibration and temperature changes can cause the stopper to loosen, further reducing the sealing effect. Traditional stoppers are typically made of a single type of rubber, whose performance is insufficient to meet the high requirements of the modern pharmaceutical industry.

[0004] A search revealed that Chinese Patent Publication No. CN201720885224.4 discloses an anti-jumping freeze-dried powder stopper; it includes a crown and a neck, with an exhaust groove on the neck, an anti-jumping rib on the outer wall of the neck, a pre-compression positioning rib on the outer wall of the neck above the anti-jumping rib, and an anti-jumping groove on the wall of the exhaust groove; the anti-jumping groove is located above the pre-compression positioning rib; and a chamfer is provided on the outer wall of the neck below the anti-jumping rib;

[0005] Although the freeze-dried rubber stopper in the aforementioned patent has anti-jumping ribs and pre-compression positioning ribs in the neck, the neck will generate a large elasticity when the rubber stopper comes into contact with the bottle mouth. The greater the elasticity of the neck, the easier it is to jump. When the friction between the anti-jumping ribs and pre-compression positioning ribs and the bottle mouth is small, the rubber stopper will jump, which cannot effectively guarantee the sealing treatment of the medicine inside the bottle. Utility Model Content

[0006] The purpose of this invention is to provide a novel irregular-shaped anti-jump freeze-dried rubber stopper. In this structure, a fan-shaped wall is inserted into the bottle mouth, and the fan-shaped wall is contracted through the U-shaped groove between two adjacent fan-shaped walls. After the rubber stopper is installed, the fan-shaped wall rebounds elastically, causing the anti-jump positioning ball and sealing strip to contact the inner wall of the bottle mouth, increasing the friction between the rubber stopper and the bottle mouth, effectively preventing the rubber stopper from jumping, and greatly increasing the sealing effect of the rubber stopper on the medicine inside the bottle; thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A novel irregular-shaped anti-jump freeze-drying rubber stopper includes a rubber cap; the rubber cap is provided with multiple positioning grooves; multiple fan-shaped walls are provided on the side of the rubber cap away from the positioning grooves, wherein a U-shaped notch is opened between two adjacent fan-shaped walls;

[0009] Two sealing strips are provided on the outer side of each of the aforementioned fan-shaped walls, and an anti-jump positioning ball is provided in the middle of the sealing strip on each fan-shaped wall; this increases the friction between the rubber stopper and the container and prevents the rubber stopper from jumping.

[0010] As a further technical solution of this utility model, the rubber cap and the fan-shaped wall are integrally formed, and the materials halogenated butyl rubber, polytetrafluoroethylene, antioxidant, vulcanizing agent and filler are mixed in a mass ratio of 70-90:35-60:50-70:40-70:25-40 and co-extruded. This makes the rubber stopper have excellent chemical stability, airtightness and low air permeability, which can effectively protect the medicine from the influence of the external environment.

[0011] As a further technical solution of this utility model, the end of the fan-shaped wall away from the glue cap is chamfered, and the fan-shaped wall and the sealing strip are rounded with a radius of 1.

[0012] As a further technical solution of this utility model, each of the aforementioned sector walls is provided with three anti-jump positioning balls, and the angle between two adjacent anti-jump positioning balls is 60°.

[0013] As a further technical solution of this utility model, the end of the anti-jump positioning ball away from the fan-shaped wall is treated with anti-slip treatment; the surface of the anti-slip end is coated with a special coating.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In use, this utility model effectively prevents the rubber stopper from jumping during use by contacting the sealing strip with the inner wall of the anti-jump positioning ball, thus effectively ensuring the seal of the rubber stopper on the bottle mouth;

[0016] 2. In this utility model, the rubber stopper body is formed by mixing and molding various materials in a certain proportion. The materials have excellent chemical stability, airtightness and low air permeability, which can effectively protect the medicine from the influence of the external environment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This utility model Figure 1 Side view.

[0019] Figure 3 This utility model Figure 1 Bottom view of the structure.

[0020] In the diagram: 1-Plastic cap, 2-Positioning groove, 3-Sealing strip, 4-Anti-jump positioning ball, 5-Sector wall. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 In this embodiment of the present invention, a novel irregular-shaped anti-jump freeze-drying rubber stopper includes a substrate 1; a rubber cap 1; a plurality of positioning grooves 2 are provided on the rubber cap 1; a plurality of fan-shaped walls 5 are provided on the side of the rubber cap 1 away from the positioning grooves 2, wherein a U-shaped notch is provided between two adjacent fan-shaped walls 5.

[0023] Two sealing strips 3 are provided on the outer side of each of the aforementioned fan-shaped walls 5, and an anti-jump positioning ball 4 is provided in the middle of the sealing strip 3 on each fan-shaped wall 5;

[0024] The rubber cap 1 and the fan-shaped wall 5 are integrally formed, and the materials halogenated butyl rubber, polytetrafluoroethylene, antioxidant, vulcanizing agent and filler are mixed in a mass ratio of 70-90:35-60:50-70:40-70:25-40 and are processed by co-extrusion.

[0025] By adopting the above technical solution, during use, the contact between the sealing strip 3 and the anti-jump positioning ball 4 on the inner wall of the bottle mouth effectively prevents the rubber stopper from jumping during use, thus effectively ensuring the seal of the rubber stopper on the bottle mouth.

[0026] The end of the fan-shaped wall 5 away from the glue cap 1 is chamfered, and the fan-shaped wall 5 and the sealing strip 3 are rounded with a radius of 1.

[0027] In this embodiment, each of the fan-shaped walls 5 is provided with three anti-jump positioning balls 4, and the two adjacent anti-jump positioning balls 4 form a 60° angle.

[0028] The anti-jump positioning ball 4 has an anti-slip treatment at the end away from the fan-shaped wall 5; the surface of this anti-slip end is coated with a special coating; this coating has good chemical corrosion resistance and low surface energy characteristics, which can effectively prevent the medicine from sticking to the rubber stopper, and also help improve the sealing performance of the rubber stopper.

[0029] By adopting the above technical solution, the rubber stopper body is formed by mixing and molding various materials in a certain proportion. The materials have excellent chemical stability, airtightness and low air permeability, which can effectively protect the medicine from the influence of the external environment.

[0030] The working principle of this invention is as follows: During use, pressing the rubber cap 1 causes the fan-shaped wall 5 to enter the bottle mouth. Through the contact between the sealing strip 3 and the anti-jump positioning ball 4 on the inner wall of the bottle mouth, the rubber stopper is effectively prevented from jumping during use, thus ensuring a tight seal between the rubber stopper and the bottle mouth.

[0031] The rubber stopper body is formed by mixing various materials in a certain proportion. The materials have excellent chemical stability, airtightness and low air permeability, which can effectively protect the medicine from the influence of the external environment.

[0032] 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.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A new profiled anti-popping lyophilized stopper, characterized in that: Includes a rubber cap (1); the rubber cap (1) is provided with multiple positioning grooves (2); the side of the rubber cap (1) away from the positioning grooves (2) is provided with multiple fan-shaped walls (5), wherein a U-shaped notch is opened between two adjacent fan-shaped walls (5); Two sealing strips (3) are provided on the outer side of each of the aforementioned fan-shaped walls (5), and an anti-jump positioning ball (4) is provided in the middle of the sealing strip (3) on each fan-shaped wall (5).

2. A novel shaped anti-popping lyophilized rubber stopper according to claim 1, characterized in that: The rubber cap (1) and the fan-shaped wall (5) are integrally formed and are co-extruded.

3. A novel shaped anti-popping lyophilized stopper according to claim 2, characterized in that: The end of the fan-shaped wall (5) away from the cap (1) is chamfered, and the fan-shaped wall (5) and the sealing strip (3) are rounded with a radius of 1.

4. A novel shaped anti-popping lyophilized stopper according to claim 3, characterized in that: Each of the aforementioned sector walls (5) is provided with three anti-jump positioning balls (4), with a 60° angle between two adjacent anti-jump positioning balls (4).

5. A novel shaped anti-popping lyophilized rubber stopper according to claim 4, characterized in that: The anti-jump positioning ball (4) is made with anti-slip treatment at the end away from the fan-shaped wall (5); the anti-slip end of the anti-jump positioning ball (4) is coated with a layer of coating.

Images