Double-color injection molding and film pasting combined cover

Abstract

The utility model relates to the technical field of infusion covers, in particular to a double-color injection molding film combined cover which comprises an inner cover and an outer cover which are designed into an inner-layer structure and an outer-layer structure, an exposed opening is formed in the top of the outer cover, a detachable elastic body plug is installed in the outer cover, and the elastic body plug is sealed and protected through a hand tearing film; meanwhile, the protective film is additionally arranged at the connecting part of the outer cover and the inner cover to realize double sealing, so that the safety of the product in transportation and storage is ensured. In addition, the design of the pull ring, the pull cover and the easy-to-tear part is optimized, and the cover opening convenience and the user experience feeling are improved. The technical effects that the efficient dustproof and antifouling level is achieved, and the opening operation is simplified are achieved.

Description

Technical Field

[0001] This application relates to the field of infusion cap technology, and in particular to a two-color injection-molded film combination cap. Background Technology

[0002] Combination caps for veterinary drug infusion containers are widely used in the animal medical field. Their main function is to seal and protect the infusion bottle while facilitating drug extraction and use. With the development of animal husbandry and technological advancements, the packaging of veterinary drug products is constantly being optimized and upgraded. Traditional combination caps for veterinary drug infusion containers mostly adopt a split design, consisting of an outer cap, a middle cap, and an inner cap, with a gasket used to achieve a sealing effect. While this design can meet basic sealing requirements, it has many inconveniences in practical applications.

[0003] Currently, the commonly used combination cap designs in the veterinary drug industry mainly include the following methods: one is to use adhesive to fix the components together to ensure sealing performance; the other is to introduce additional sealing rings or gaskets to enhance overall airtightness. These methods are widely used to solve similar problems, aiming to improve the sealing effect while facilitating operation by medical personnel.

[0004] However, the aforementioned traditional solutions generally have some shortcomings, such as high production costs due to complex components and low assembly efficiency. Particularly in scenarios requiring secondary use or multiple purposes, the existing combination caps, due to their complex structure, force medication transfer to be done only with a syringe, making the process extremely cumbersome, significantly increasing workload and reducing convenience. Furthermore, the complex component composition can easily lead to a decrease in hygiene standards. Therefore, simplifying the design of the combination cap to improve dust and dirt protection and usage efficiency has become a crucial issue that urgently needs to be addressed. Utility Model Content

[0005] To overcome the above-mentioned technical problems, this application provides a two-color injection molded film combination cover.

[0006] This application provides a two-color injection-molded film-coated combination cap, which adopts the following technical solution:

[0007] A two-color injection-molded film-coated cap includes an inner cap and an outer cap. The outer cap is installed outside the inner cap, and the top of the outer cap is recessed downward to form an opening. An elastomer plug is disposed within the opening. A tear-off film is fixedly disposed on the top of the outer cap, completely covering the top surface of the elastomer plug and fixing the elastomer plug within the opening. The bottom of the outer cap has an outer edge, and the bottom of the inner cap has an inner edge. When the outer cap is installed outside the inner cap, the bottom of the outer edge of the outer cap abuts against the top of the outer edge of the inner cap. A protective film for sealing is fixedly disposed at the junction of the outer edge of the outer cap and the outer edge of the inner cap.

[0008] By adopting the above technical solution, a simplified design of the veterinary drug infusion container cap has been achieved, reducing the number of components and assembly complexity. The fit between the outer and inner caps and the protective film effectively improve the overall sealing performance, avoiding the risk of contaminants entering due to the cumbersome structure of traditional cap combinations. The two-color injection molding design ensures the elastomeric plug is firmly fixed in the opening. Meanwhile, the tear-off film design facilitates one-time opening, improving ease of use. This design not only saves material costs but also optimizes the operational experience during medication preparation, meeting the needs of veterinary infusion drugs for multiple uses.

[0009] Preferably, the bottom wall of the exposed opening is narrowed and has an annular engagement platform, and the bottom of the elastic plug engages with the engagement platform.

[0010] By adopting the above technical solution, a stable connection between the elastomeric plug and the exposed bottom wall is achieved. Specifically, the annular locking platform design effectively prevents the elastomeric plug from loosening during use, improves the overall sealing performance of the combined cap, simplifies the assembly process, and reduces material waste caused by poor fit of the combined cap components.

[0011] Preferably, the outer cover has an anti-slip textured pattern in a ring along its outer side.

[0012] By adopting the above technical solution, the addition of annular anti-slip texture on the outer side of the cover effectively increases friction, thus providing a more stable grip when twisting the cover and avoiding inconvenience caused by slipping hands. This design significantly improves the ease of use for users, especially in situations where the cover needs to be opened and closed frequently, further optimizing the user experience.

[0013] Preferably, the inner wall of the inner cover is provided with a pull ring and a pull cover, and the pull ring is integrally provided on the top of the pull cover.

[0014] By adopting the above technical solution, an integrated design of the inner cover's pull ring and the pull cap is achieved. This design allows for convenient opening of the pull cap during use, while ensuring the integrity and stability of the structure, avoiding the cumbersome operation problems caused by too many parts in traditional combined caps. Specifically, in the technical means of this claim, the pull ring and pull cap are integrated into the inner wall of the inner cover, simplifying the assembly process, reducing material waste, and improving production efficiency. Furthermore, this integrated design enables an efficient method of drug pouring, making it more convenient and efficient in the practical application of veterinary drug infusion containers.

[0015] Preferably, the pull ring includes a fixing part directly connected to the pull cover, and the pull ring also includes a pulling part located at the top of the fixing part, the pulling part being annular in shape.

[0016] By adopting the above technical solution, the pull ring design makes the combination cap easier to open. Specifically, the fixing part is connected to the pull cap, ensuring the stability of the structure, while the circular pull part located at the top of the fixing part provides a convenient handhold for applying force. Users can easily open the combination cap by pulling the pull part, which significantly improves the ease of operation, especially suitable for veterinary infusion scenarios where frequent opening and closing are required.

[0017] Preferably, a first tear-off portion is provided at the connection between the pull tab and the inner cover, and a second tear-off portion is provided near the middle of the pull tab, with both the first and second tear-off portions being circumferentially formed.

[0018] By adopting the above technical solution, convenient separation between the pull cap and the inner cap is achieved. Specifically, the first easy-tear section allows users to easily tear open one end of the pull cap along the annular area, while the addition of a second easy-tear section further reduces the force required for the tearing process, facilitating quick opening of the combined cap during medication preparation and improving operational efficiency. Combined with the overall design of the two-color injection-molded film combined cap, this solution effectively simplifies the operation process of veterinary drug infusion containers, avoiding the inconvenience caused by the complex structure of traditional combined caps.

[0019] Preferably, the top of the outer cover has a circular hole forming a fastening groove.

[0020] By adopting the above technical solution, the slot formed by the round hole on the top of the outer cover allows users to easily hook and apply force with their fingers or other tools, making it easier to open the combination cover. This design significantly improves ease of operation, especially in situations requiring frequent opening, effectively reducing operational difficulty and time costs.

[0021] Preferably, the outer side of the inner cover is provided with external threads, and the inner wall of the outer cover is provided with internal threads.

[0022] By adopting the above technical solution, the inner cover and the outer cover are connected by threads, making the assembly of the two more stable and reliable, while facilitating disassembly and assembly, and simplifying the installation process of the combined cover.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The outer and inner covers are quickly assembled through threaded connection and protective film sealing, which reduces the number of parts, simplifies the structure, and effectively reduces production costs and material waste;

[0025] 2. The tear-off film completely covers the elastomer plug and fixes it in the opening, which not only ensures good sealing performance, but also allows it to be opened by a simple tearing action, improving the convenience of use.

[0026] 3. The inner and outer covers are connected by their outer edges to form a stable support, preventing loosening or falling off, thus enhancing the overall reliability and durability of the combined cover.

[0027] 4. The protective film does not reduce the sealing and dustproof effect between the structural parts, thus maintaining a high level of hygiene. The gap between the outer and inner covers is sealed by the protective film, effectively improving the overall anti-fouling performance and avoiding the risk of contaminants entering due to the complicated structure of traditional combination covers. Attached Figure Description

[0028] Figure 1 This is a perspective view of an embodiment of this application;

[0029] Figure 2 This is an exploded view of an embodiment of this application;

[0030] Figure 3 This is a structural view of the inner cover;

[0031] Figure 4 This is a cross-sectional view of an embodiment of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Tear-off film; 2. Outer cover; 21. Internal thread; 22. Opening; 221. Engaging platform; 23. Anti-slip texture; 24. Outer edge of the outer cover; 25. Snap groove; 3. Elastomer plug; 4. Inner cover; 41. External thread; 42. Pull ring; 421. Fixing part; 422. Pulling part; 43. Pull cover; 431. First easy-tear part; 432. Second easy-tear part; 44. Outer edge of the inner cover; 5. Protective film. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0034] This application discloses a two-color injection-molded film composite cover, referring to... Figure 1 , Figure 2 and Figure 3The system includes an inner cover 4 and an outer cover 2. The outer cover 2 is installed outside the inner cover 4. The outer side of the inner cover 4 has an external thread 41, and the inner wall of the outer cover 2 has an internal thread 21. The outer cover 2 and the inner cover 4 can be connected by threads, increasing the ease of assembly and disassembly. The top of the outer cover 2 is recessed downwards, forming an opening 22. An elastomer plug 3 is placed inside the opening 22. A tear-off film 1 is fixedly installed on the top of the outer cover 2. The tear-off film completely covers the top surface of the elastomer plug 3 and fixes the elastomer plug 3 inside the opening 22, ensuring the cleanliness and hygiene of the elastomer plug 3. To enhance the sealing performance, an outer edge 24 is provided at the bottom of the outer cover 2, and a corresponding outer edge 44 is provided at the bottom of the inner cover 4. When the outer cover 2 is fitted onto the outer cover 4, the bottom of the outer edge 24 of the outer cover and the top of the outer edge 44 of the inner cover are tightly abutted, thereby ensuring the stability of the overall structure. Of particular note is the addition of a protective film 5 as an auxiliary seal at the junction of the outer edge 24 of the outer cover and the outer edge 44 of the inner cover. This design improves the sealing performance of the entire combination cover.

[0035] Reference Figure 1 and Figure 4 Specifically, the elastomer 3 can be made of TPE or silicone, both of which have good elasticity and chemical corrosion resistance, making them suitable for long-term storage of veterinary drug solutions. The bottom wall of the exposed opening 22 narrows and is provided with a circular locking platform 221. The bottom of the elastomer plug 3 engages with the locking platform 221, which not only enhances the positioning reliability of the elastomer plug 3 but also facilitates the smooth completion of subsequent sampling needle puncture operations.

[0036] A ring of regularly arranged small protrusions 23 forms an anti-slip texture along the outer surface of the outer cover 2. These protrusions are approximately 0.5 mm to 1 mm high, about 2 mm wide, and spaced approximately 3 mm apart. This design effectively increases friction to prevent slippage without affecting the aesthetic appearance and weight balance. Furthermore, the use of a mold-forming process completes the entire manufacturing process in one go, giving it a high cost-performance advantage for mass production.

[0037] A small circular opening, known as the snap-on groove 25, is created by hollowing out the center of the top of the outer cover 2. This modification provides users with a clear operational guide point, allowing them to gently press this area with their fingers to peel off the hand-tear film 1. It also indirectly strengthens the local area and reduces the risk of deformation or damage due to improper force.

[0038] Reference Figure 3 and Figure 4The inner wall of the inner cover 4 is provided with a pull ring 42 and a pull cover 43, with the pull ring 42 integrally mounted on the top of the pull cover 43. The pull ring 42 includes a fixing part 421 directly connected to the pull cover 43, and the fixing part 421 and the pulling part 422 together form a pull ring 42 system. The pull ring 42 also includes a pulling part 422 located on top of the fixing part 421. The pulling part 422 is ring-shaped, specifically presenting as a slender ring in a fully closed state, facilitating manual pulling and lifting. Meanwhile, a clearly visible first easy-tear section 431 is pre-planned and arranged at the periphery of the connection between the pull cap 43 and the inner cap 4, and a second easy-tear section 432 is provided near the middle of the pull cap 43. Both the first easy-tear section 431 and the second easy-tear section 432 are arranged in a ring shape, forming a closed path layout, which precisely controls the direction of breakage and ultimately facilitates easy separation. This design is particularly suitable for directly pouring powdered drugs from the medicine bottle into the infusion bag to dissolve in the infusion bag, or pouring the solution from the infusion bag into the medicine bottle to dissolve in the medicine bottle, and then pouring it into the infusion bag, eliminating the step of transferring the dissolved medicine with a syringe, making the operation convenient.

[0039] The implementation principle of this application embodiment is as follows: This application provides a two-color injection-molded film combination cap that improves the user's cap-opening experience and reduces unnecessary reliance on tools, especially in emergency situations. By pulling open the pull ring 42 to open the cap 43, it is easy to directly pour the powdered medicine from the medicine bottle into the infusion bag, speeding up the medication preparation process and improving the work efficiency of medical staff. In addition, the tear-off film 1 facilitates quick medication dispensing using a syringe. The combination of these two different medication dispensing methods provides medical staff with more options. The protective film 5 does not reduce the sealing and dustproof effect between the various structural parts, ensuring a high level of hygiene. The gap between the outer cap 2 and the inner cap 4 is sealed by the protective film 5, effectively improving the overall anti-fouling performance and avoiding the risk of contaminants entering due to the cumbersome structure of traditional combination caps.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A two-color injection-molded film-coated combination cap, characterized in that: It includes an inner cover (4) and an outer cover (2). The outer cover (2) is installed outside the inner cover (4). The top of the outer cover (2) is recessed downward and forms an opening (22). An elastic plug (3) is provided inside the opening (22). A tear-off film (1) is fixedly installed on the top of the outer cover (2). The tear-off film completely covers the top surface of the elastomer plug (3) and fixes the elastomer plug (3) in the opening (22). The outer cover (2) has an outer edge (24) at the bottom, and the inner cover (4) has an inner edge (44) at the bottom. When the outer cover (2) is installed outside the inner cover (4), the bottom of the outer edge (24) abuts against the top of the inner edge (44). A protective film (5) for sealing is fixedly provided at the junction of the outer edge (24) of the outer cover and the outer edge (44) of the inner cover.

2. The two-color injection-molded film-coated combination cap according to claim 1, characterized in that: The bottom wall of the opening (22) narrows and is provided with an annular locking platform (221), and the bottom of the elastic plug (3) is engaged with the locking platform (221).

3. The two-color injection-molded film-coated combination cap according to claim 1, characterized in that: Anti-slip texture (23) is provided in a ring along the outer side of the outer cover (2).

4. The two-color injection-molded film-coated combination cap according to claim 1, characterized in that: The inner wall of the inner cover (4) is provided with a pull ring (42) and a pull cover (43), and the pull ring (42) is integrally provided on the top of the pull cover (43).

5. A two-color injection-molded film-coated composite cap according to claim 4, characterized in that: The pull ring (42) includes a fixing part (421) directly connected to the pull cover (43), and the pull ring (42) also includes a pulling part (422) located on top of the fixing part (421), the pulling part (422) being ring-shaped.

6. The two-color injection-molded film-coated combination cap according to claim 4, characterized in that: A first tear-off portion (431) is provided at the connection between the pull cover (43) and the inner cover (4), and a second tear-off portion (432) is provided near the middle of the pull cover (43). Both the first tear-off portion (431) and the second tear-off portion (432) are circumferentially formed.

7. The two-color injection-molded film-coated combination cap according to claim 1, characterized in that: The top of the outer cover (2) has a round hole forming a buckle groove (25).

8. The two-color injection-molded film-coated combination cap according to claim 1, characterized in that: The outer side of the inner cover (4) is provided with an external thread (41), and the inner wall of the outer cover (2) is provided with an internal thread (21).

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