Medicinal polyethylene bottle cap with double-layer structure

Abstract

The utility model discloses a medicinal polyethylene bottle cap with a double-layer structure, which relates to the technical field of pharmaceutical engineering, and comprises a cap body, a cavity is arranged inside the cap body, a filling inner layer is fixedly arranged on the inner wall of the cavity, a bottle body is arranged below the cap body, a protective outer layer is fixedly arranged at the lower end of the cap body, and the protective outer layer is arranged on the inner wall of the cavity. The medical polyethylene bottle cap with the double-layer structure is characterized in that the outer protection layer is fixedly arranged at the upper end of the bottle body, the sealing ring groove is arranged in the outer protection layer, the inner surface of the outer protection layer is attached to the outer surface of the upper end of the bottle body, and an inner plug body is fixedly arranged at the lower end of the cap body and located in the outer protection layer. According to the medicine storage box, medicine leakage and invasion of external substances are effectively prevented, the safety and stability of medicine storage are greatly improved, operation is convenient through a threaded fit connection mode, convenience is provided in the medicine production, use and storage processes, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical engineering, and particularly relates to a double-layer structure medicinal polyethylene bottle cap. Background Art

[0002] In the field of pharmaceutical packaging, medicinal polyethylene bottle caps play an important role. With the development of the pharmaceutical industry, the requirements for drug packaging are increasing day by day. Traditional bottle caps gradually expose deficiencies in some aspects. For example, there are limitations in protecting the stability, sealing performance, and safety of drugs. In order to meet the various needs of drugs during storage, transportation, and use, medicinal polyethylene bottle caps are constantly improved and innovated. Polyethylene materials have become one of the commonly used materials for making bottle caps due to their good chemical stability, corrosion resistance, and relatively low cost.

[0003] However, the existing technology still has the following problems:

[0004] First of all, for the medicinal polyethylene bottle caps in the existing technology, most of them have limited sealing and protection effects. Medicinal bottle caps often adopt a single-layer sealing structure, and may only rely on the simple contact between the bottle cap and the bottle mouth to achieve sealing. This design is relatively weak in sealing effect and cannot effectively cope with the intrusion of substances such as water vapor, oxygen, and dust in the external environment, easily leading to drug leakage, moisture absorption, deterioration, or contamination, thereby reducing the safety and stability of drug preservation.

[0005] Secondly, for the medicinal polyethylene bottle caps in the existing technology, the connection method of the bottle cap may be relatively complex and not firm. It may adopt a snap connection, but the snap is easy to be damaged or loosened, affecting the sealing effect; or it may adopt methods such as gluing. Not only is it difficult to disassemble, but also harmful substances may remain at the gluing position, affecting the quality of drugs. In addition, some existing connection methods may not be conducive to the rapid operation of the production line, reducing the efficiency during the production, use, and storage of drugs.

[0006] In view of the above problems, the inventor proposes a double-layer structure medicinal polyethylene bottle cap to solve the above problems. Content of the Utility Model

[0007] In order to solve the problems of limited sealing and protection effects and the relatively complex and not firm connection method of the bottle cap; the purpose of the utility model is to provide a double-layer structure medicinal polyethylene bottle cap.

[0008] To solve the above technical problems, the present utility model adopts the following technical solutions: A double-layer structure medicinal polyethylene bottle cap, including a cap body, a cavity is provided inside the cap body, a filling inner layer is fixedly provided on the inner wall of the cavity, a bottle body is provided below the cap body, and the bottle body is a drug storage bottle used in combination with the bottle cap. A protective outer layer is fixedly provided at the lower end of the cap body, the inner surface of the protective outer layer is attached to the outer surface of the upper end of the bottle body, an inner plug body is fixedly provided at the lower end of the cap body, the inner plug body is located inside the protective outer layer, and a sealing disc is fixedly provided at the lower end of the inner plug body. The outer surface of the sealing disc is attached to the inner surface of the bottle body. A sealing tube is fixedly sleeved on the outer surface of the inner plug body, and the lower end of the sealing tube is fixedly connected to the sealing disc. The setting of the sealing tube further strengthens the sealing performance and effectively prevents the leakage of drugs and the penetration of external gases.

[0009] Preferably, connection blocks are fixedly provided on both sides of the outer surface of the cap body. A connection column is movably penetrated through the upper end of the connection block. A rotating column is fixedly provided at the upper end of the connection column. The design of the rotating column enables the user to easily perform a rotating operation. A threaded column is fixedly provided at the lower end of the connection column. The radii of the rotating column and the threaded column are both larger than the radius of the connection column. Threaded tubes are fixedly provided on both sides of the upper end of the bottle body. A threaded groove for cooperating with the threaded column is provided at the upper end of the threaded tube. This threaded connection method is not only firm and reliable but also easy to operate.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. Through the multi-layer design of the outer protective layer, the sealing ring groove, and the inner plug body, the present utility model forms multiple sealing lines of defense, effectively preventing the leakage of drugs and the intrusion of external substances, and greatly improving the safety and stability of drug preservation.

[0012] 2. Through the connection method of threaded cooperation, the present utility model is convenient to operate and firmly connected, providing convenience during the production, use, and storage of drugs, improving the operation efficiency, and effectively ensuring the quality and safety of drugs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2This is an exploded view of the cross-section and part of the structure of the bottle body of the present utility model.

[0016] Figure 3 This is an exploded view of the cross-section and part of the structure of one of the connecting blocks of the present utility model.

[0017] In the figure: 1. Cap body; 11. Protective outer layer; 12. Inner plug body; 13. Sealing disc; 14. Sealing tube; 15. Sealing ring groove; 16. Cavity; 17. Filling inner layer; 2. Bottle body; 3. Connecting block; 31. Connecting column; 32. Rotating column; 33. Threaded column; 34. Threaded tube; 35. Threaded groove. Specific implementation mode

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present utility model.

[0019] Embodiment 1: As Figure 1-2 shown, the present utility model provides a double-layer structure medicinal polyethylene bottle cap, including a cap body 1. A bottle body 2 is provided below the cap body 1. A protective outer layer 11 is fixedly provided at the lower end of the cap body 1. The inner surface of the protective outer layer 11 is attached to the outer surface of the upper end of the bottle body 2. A sealing ring groove 15 is fixedly provided at the lower end of the cap body 1, and the upper end of the bottle body 2 is attached to the inner wall of the sealing ring groove 15. An inner plug body 12 is fixedly provided at the lower end of the cap body 1. The inner plug body 12 is located inside the protective outer layer 11, and a sealing disc 13 is fixedly provided at the lower end of the inner plug body 12. The outer surface of the sealing disc 13 is attached to the inner surface of the bottle body 2. The cap body 1 is the polyethylene bottle cap body, and the bottle body 2 is a matching medicine bottle. When the cap body 1 is covered, the bottle mouth on the bottle body 2 is inserted into the sealing ring groove 15. At this time, the protective outer layer 11 contacts the outer surface of the bottle mouth, serving as the outermost protective sealing structure, while the inner plug body 12 plugs the bottle mouth, and the sealing disc 13 can block the medicine in the bottle, forming multiple sealing lines of defense, effectively preventing medicine leakage and the intrusion of external substances, and greatly improving the safety and stability of medicine storage.

[0020] A sealing tube 14 is fixedly sleeved on the outer surface of the inner plug body 12, and the lower end of the sealing tube 14 is fixedly connected to the sealing disc 13. The outer surface of the sealing tube 14 is attached to the inner surface of the bottle body 2. The materials of both the sealing tube 14 and the sealing disc 13 are butyl rubber. The contact of the butyl rubber sealing disc 14 and sealing tube 13 with the inner wall of the bottle mouth can effectively prevent the penetration of gas, creating a relatively stable storage environment for the medicine. For some medicines that are prone to oxidation, the butyl rubber stopper can reduce the entry of oxygen and extend the shelf life of the medicine.

[0021] The interior of the cover body 1 is provided with a cavity 16. The inner wall of the cavity 16 is fixedly provided with a filling inner layer 17. The material of the filling inner layer 17 is polyvinylidene chloride. And the outer surface of the filling inner layer 17 is closely attached and connected with aluminum foil. The aluminum foil has good barrier performance and can effectively block the penetration of light, oxygen, water vapor, etc., maintaining the stability of the medicine. In the packaging of some medicines sensitive to light and oxygen, the aluminum foil sandwich board can well protect the medicine components from being oxidized and degraded. And the filling inner layer 17 composed of polyvinylidene chloride in the cavity 16 has excellent gas barrier and moisture-proof performance, which can effectively improve the shelf life of the medicine. For some medicines that are prone to getting damp and deteriorating, the double-layer design of the sandwich board can greatly reduce the penetration of water vapor and extend the validity period of the medicine.

[0022] Example Two: As Figure 3 shown, both sides of the outer surface of the cover body 1 are fixedly provided with connecting blocks 3. The upper ends of the connecting blocks 3 are movably penetrated with connecting columns 31. The upper ends of the connecting columns 31 are fixedly provided with rotating columns 32. The connecting blocks 3 on both sides are mirror-symmetrically distributed. And the outer surface of the rotating column 32 is roughened. The lower ends of the connecting columns 31 are fixedly provided with threaded columns 33. Both sides of the upper end of the bottle body 2 are fixedly provided with threaded tubes 34. The upper ends of the threaded tubes 34 are provided with threaded grooves 35 for cooperating with the threaded columns 33. After the cover body 1 is covered, by rotating the rotating column 32, the connecting column 31 is driven to rotate in the connecting block 3, so that the threaded column 33 is in threaded connection with the threaded groove 35 on the threaded tube 34, thereby firmly installing the cover body 1 on the bottle body 2, improving the stability of the cover body 1 when it is covered. The threaded connection method is convenient for operation and provides convenience during the production, use, and storage of medicines, improving the operation efficiency and effectively ensuring the quality and safety of medicines.

[0023] Working principle: The cover body 1 is a polyethylene bottle cap body, and the bottle body 2 is a matching medicine bottle. When the cover body 1 covers, the bottle mouth on the bottle body 2 is inserted into the sealing ring groove 15. At this time, the protective outer layer 11 contacts the outer surface of the bottle mouth. As the outermost protective sealing structure, and the inner plug body 12 plugs the bottle mouth. The sealing disc 13 can block the medicine in the bottle, forming multiple sealing defenses, effectively preventing the leakage of medicines and the intrusion of external substances, greatly improving the safety and stability of medicine storage;

[0024] The contact of the butyl rubber sealing disc 14 and the sealing tube 13 with the inner wall of the bottle mouth can effectively prevent the penetration of gas, creating a relatively stable storage environment for the medicine. For some medicines that are prone to oxidation, the butyl rubber stopper can reduce the entry of oxygen and extend the shelf life of the medicine;

[0025] Aluminum foil has good barrier properties, can effectively block the penetration of light, oxygen, water vapor, etc., and maintain the stability of drugs. In the packaging of some drugs sensitive to light and oxygen, the aluminum foil sandwich panel can well protect the drug components from oxidation and degradation. The inner filling layer 17 made of polyvinylidene chloride in the cavity 16 has excellent gas barrier and moisture-proof properties, and can effectively improve the shelf life of drugs. For some drugs that are prone to moisture and deterioration, the double-layer design of the sandwich panel can greatly reduce the penetration of water vapor and extend the validity period of drugs;

[0026] After the cover body 1 is covered, by rotating the rotating column 32, the connecting column 31 is driven to rotate in the connecting block 3, so that the threaded column 33 is in threaded connection with the threaded groove 35 on the threaded tube 34, thereby firmly installing the cover body 1 on the bottle body 2, improving the stability of the cover body 1 when it is covered. The connection method of threaded fit is convenient for operation and provides convenience during the production, use and storage of drugs, improves the operation efficiency, and can effectively guarantee the quality and safety of drugs.

[0027] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these changes and modifications.

Claims

1. A double-layer structure pharmaceutical polyethylene bottle cap, comprising a cap body (1), characterized in that: A bottle body (2) is provided below the cover body (1). A protective outer layer (11) is fixedly provided at the lower end of the cover body (1). The inner surface of the protective outer layer (11) is in fit with the outer surface of the upper end of the bottle body (2). An inner plug body (12) is fixedly provided at the lower end of the cover body (1). The inner plug body (12) is located inside the protective outer layer (11), and a sealing disc (13) is fixedly provided at the lower end of the inner plug body (12). The outer surface of the sealing disc (13) is in fit with the inner surface of the bottle body (2).

2. The double-layer structure pharmaceutical polyethylene bottle cap according to claim 1, characterized in that: Connection blocks (3) are fixedly provided on both sides of the outer surface of the cover body (1). A connection column (31) is movably penetrated through the upper end of the connection block (3). A rotating column (32) is fixedly provided at the upper end of the connection column (31). A threaded column (33) is fixedly provided at the lower end of the connection column (31). Threaded tubes (34) are fixedly provided on both sides of the upper end of the bottle body (2). A threaded groove (35) for cooperating with the threaded column (33) is provided at the upper end of the threaded tube (34).

3. The double-layer structured pharmaceutical polyethylene bottle cap according to claim 1, wherein: A sealing tube (14) is fixedly sleeved on the outer surface of the inner plug body (12), and the lower end of the sealing tube (14) is fixedly connected to the sealing disc (13).

4. The double-layered medicinal polyethylene bottle cap according to claim 3, characterized in that: The outer surface of the sealing tube (14) is in fit with the inner surface of the bottle body (2), and the materials of both the sealing tube (14) and the sealing disc (13) are butyl rubber.

5. The double-layer structured pharmaceutical polyethylene bottle cap according to claim 1, characterized in that: A cavity (16) is formed inside the cover body (1), and a filling inner layer (17) is fixedly provided on the inner wall of the cavity (16).

6. The double-layer structure medicinal polyethylene bottle cap according to claim 5, wherein: The material of the filling inner layer (17) is polyvinylidene chloride, and an aluminum foil is tightly and fittingly connected to the outer surface of the filling inner layer (17).

7. A double-layer structured pharmaceutical polyethylene bottle cap as claimed in claim 1, wherein: A sealing ring groove (15) is fixedly provided at the lower end of the cover body (1), and the upper end of the bottle body (2) is in fit with the inner wall of the sealing ring groove (15).

8. The double-layer structure pharmaceutical polyethylene bottle cap according to claim 2, characterized in that: The connection blocks (3) on both sides are mirror-image distributed, and the outer surface of the rotating column (32) is roughened.

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