A moisture-proof bottle cap

Abstract

This invention provides a moisture-proof bottle cap that solves the problems of poor moisture-proof sealing, low adaptability, and complex structure of existing bottle caps. It includes an inner cap; a storage box is located in the center of the inner cap, and the interior of the storage box has a cavity for storing desiccant. The bottom surface of the storage box has several through holes communicating with the cavity. An elastic flange is provided along the outer periphery of the inner cap and can be detachably connected to the inner wall of a medicine bottle. Symmetrical elastic connecting blocks are arranged between the inner wall of the elastic flange and the outer wall of the storage box, with at least two elastic connecting blocks. This invention has wide applications in the field of moisture-proof bottle cap technology.

Description

Technical Field

[0001] This application relates to the field of moisture-proof bottle cap technology, and more specifically, to a moisture-proof bottle cap. Background Technology

[0002] In the production and packaging of pharmaceuticals, moisture-proofing is usually necessary to extend shelf life and ensure quality. As a crucial component of the medicine bottle, the moisture-proof performance of the bottle cap directly affects the storage effectiveness of the medicine. Currently, many moisture-proofing issues exist with pharmaceutical bottle caps on the market:

[0003] 1. Some bottle caps lack a dedicated moisture-proof structure, relying solely on their fit with the bottle body for sealing. This is insufficient to effectively block external moisture, causing the medicine to easily absorb moisture and deteriorate. Other bottle caps, while containing desiccants, have simply sealed desiccants that can easily come into contact with the medicine, causing contamination.

[0004] 2. Most existing bottle caps are of fixed size and can only be matched with specific sizes of medicine bottles. When the type of medicine or packaging specifications change, bottle caps of corresponding sizes must be replaced, which increases the production and inventory costs for pharmaceutical companies and also causes inconvenience to users.

[0005] 3. To achieve the moisture-proof function, some moisture-proof bottle caps often have complex structures and many parts, which increases the difficulty of production and manufacturing costs. During long-term use, the parts are prone to wear and loosening, which affects the stability of the overall structure and service life. Utility Model Content

[0006] To address the aforementioned problems, the present invention provides a moisture-proof bottle cap that solves the issues of poor moisture-proof sealing, low adaptability, and complex structure of existing medicine bottle caps. The cap includes an inner cap; a storage box is located in the center of the inner cap, with a cavity inside the storage box for storing desiccant; the bottom surface of the storage box has several through holes communicating with the cavity; the inner cap has an elastic flange along its outer periphery that is detachably connected to the inner wall of the medicine bottle; symmetrical elastic connecting blocks are arranged between the inner wall of the elastic flange and the outer wall of the storage box, with at least two elastic connecting blocks.

[0007] Preferably, the elastic flange is interference-fitted with the inner wall of the medicine bottle.

[0008] Preferably, the elastic connecting block is provided with a compression spring inside, and the length of the elastic connecting block is less than the natural length of the compression spring.

[0009] Preferably, the elastic connecting block and the compression spring are arranged along the radial direction of the inner cover.

[0010] Preferably, a storage lid is detachably connected to the top surface of the storage box.

[0011] Preferably, the storage lid is made of a transparent material.

[0012] Preferably, the elastic flange is provided with a handle.

[0013] Preferably, it also includes an outer cap that is threaded to the outer wall of the medicine bottle. The top surface of the outer cap is covered with an outer cover plate. The inner side of the outer cover plate is connected with a planar barrier that matches the inner cap. A medicine dispensing chamber is formed between the outer cover plate and the planar barrier. The planar barrier is provided with a medicine dispensing hole, and the inner cap is provided with a medicine outlet hole that matches the medicine dispensing hole.

[0014] The beneficial effects of this utility model are as follows: The inner cap has an elastic flange along its outer periphery that is detachably connected to the inner wall of the medicine bottle. Symmetrical elastic connecting blocks are provided between the inner wall of the elastic flange and the outer wall of the storage box. Through the cooperation of the elastic connecting blocks and the elastic flange, the elastic flange fits tightly against the inner wall of the medicine bottle, achieving a radial seal and preventing external moisture from entering the medicine bottle. Simultaneously, due to the elastic deformation capability of the elastic material, the elastic flange can adapt and adjust itself through elastic deformation, tightly connecting with the inner walls of various sizes of medicine bottles within a certain size range, thus improving the applicability and versatility of the inner cap. Pharmaceutical manufacturers do not need to design separate moisture-proof caps for specific sized medicine bottles, and users do not need to replace moisture-proof caps due to changes in medicine bottle specifications. The inner cap reduces the adaptation cost for different medicine bottles and improves ease of use. This device has a simple structure, few parts, and is easy to manufacture, process, and assemble. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0018] Figure 3 This is a schematic diagram of the structure of the present invention with the storage cover removed.

[0019] Symbols in the diagram: 1. Inner cover; 2. Storage box; 3. Through hole; 4. Flexible flange; 5. Flexible connecting block; 6. Storage lid; 7. Handle. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0021] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0022] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] The present application will now describe a moisture-proof bottle cap provided in an embodiment.

[0024] Please see Figures 1 to 3 The moisture-proof bottle cap includes an inner cap 1, which is an internal cap placed inside the medicine bottle and connected to the inner wall of the medicine bottle. A storage box 2 is located in the center of the inner cap 1. The storage box 2 has a cavity for storing desiccant, and the bottom surface of the storage box 2 has several through holes 3 communicating with the cavity. The desiccant is used to absorb moisture from the air inside the medicine bottle, preventing the medicine from getting damp. The through holes 3 on the bottom surface of the storage box 2 provide a channel for moisture absorption, ensuring that the desiccant can continuously absorb moisture inside the medicine bottle and avoiding direct contact between the desiccant and the medicine, thus meeting the hygiene requirements of the medicine. The inner cap 1 has an elastic flange 4 along its outer periphery that is detachably connected to the inner wall of the medicine bottle. Elastic connecting blocks 5 are symmetrically arranged between the inner wall of the elastic flange 4 and the outer wall of the storage box 2, with at least two elastic connecting blocks 5. In this embodiment, there are two elastic connecting blocks 5, symmetrically arranged along the center of the inner cap 1. Through the cooperation of the elastic connecting block 5 and the elastic flange 4, the elastic flange 4 fits tightly against the inner wall of the medicine bottle, achieving radial sealing and preventing external moisture from entering the medicine bottle; at the same time, because the elastic material has elastic deformation capability, the elastic flange 4 can adapt and adjust itself through elastic deformation, and fit tightly against the inner wall of various specifications of medicine bottles within a certain size range, improving the applicability and versatility of the inner cap 1.

[0025] Furthermore, the elastic flange 4 is interference-fitted with the inner wall of the medicine bottle. The interference fit creates continuous radial pressure between the elastic flange 4 and the inner wall of the medicine bottle, forcing the elastic flange 4 to undergo elastic deformation to fill the gaps in the inner wall of the medicine bottle, blocking the penetration of moisture and improving the moisture-proof and sealing effect of the inner cap 1.

[0026] Furthermore, a compression spring is installed inside the elastic connecting block 5, and the length of the elastic connecting block 5 is less than the natural length of the compression spring. Because the length of the elastic connecting block 5 is less than the natural length of the compression spring, the compression spring is always in a compressed state after assembly, and the elastic restoring force it generates continuously acts on the elastic connecting block 5, and is then transmitted to the elastic flange 4 through the elastic connecting block 5, so that the elastic flange 4 is always subjected to outward radial pressure. Under the action of this pressure, the elastic flange 4 always maintains a tight fit with the inner wall of the medicine bottle, ensuring the stability of the sealing effect of the inner cap 1.

[0027] Furthermore, the elastic connecting block 5 and the compression spring are arranged along the radial direction of the inner cover 1, which can directly provide radial pressure to the elastic flange 4 to ensure that it fits tightly against the inner wall of the medicine bottle and improve the sealing effect; at the same time, the force is evenly distributed along the circumference to prevent the inner cover 1 from tilting.

[0028] Specifically, a storage lid 6 is detachably connected to the top surface of the storage box 2. This allows for convenient and quick opening and replacement of the desiccant. In this embodiment, the top surface of the storage box 2 is closed to the storage lid 6, and the closing structure can seal the cavity to prevent desiccant leakage or medicine entry.

[0029] In this embodiment, the storage cover 6 is made of transparent material, which allows direct observation of the desiccant's state and simplifies the structure of the storage cover 6. The overall structure is simple, with few parts, making it easy to manufacture, process, and assemble.

[0030] In this embodiment, a handle 7 is provided on the elastic flange 4 to facilitate the quick removal of the inner cap 1 and reduce the difficulty of operation. When using the medicine, the user opens the bottle cap (i.e., the outer cap), pulls the handle 7 to remove the inner cap 1, and then pours out the medicine.

[0031] In another embodiment, a moisture-proof bottle cap further includes an outer cap, which is threadedly connected to the outer wall of the medicine bottle. An outer cap plate is attached to the top surface of the outer cap, and a planar barrier that mates with the inner cap 1 is connected to the inner side of the outer cap plate. A medicine dispensing compartment is formed between the outer cap plate and the planar barrier. The inner cap 1 is housed inside the medicine bottle and is tightly fitted to the inner wall of the bottle via an elastic flange 4. A medicine dispensing hole is provided on the planar barrier, and a medicine outlet hole that mates with the medicine dispensing hole is provided on the inner cap 1. In use, the user rotates the outer cap, causing the planar barrier to rotate. When the medicine dispensing hole rotates to the medicine outlet hole, the medicine enters the medicine dispensing compartment from inside the medicine bottle through the medicine outlet hole and the medicine dispensing hole. The user then rotates the outer cap again to offset the medicine dispensing hole and the medicine outlet hole, and then opens the outer cap plate to retrieve the medicine from the medicine dispensing compartment. Compared to directly opening the outer cap to take the medicine, this method of taking medicine only briefly connects the inside of the medicine bottle with the medicine dispensing compartment when the dispensing hole and the medicine outlet are aligned. After taking the medicine, the dispensing hole can be closed by misaligning the dispensing hole, which reduces the probability of external moisture entering the medicine bottle during the medicine taking process and reduces the risk of the medicine getting damp.

[0032] The method of using this utility model is as follows: When installing the inner cover 1, first fill the cavity of the storage box 2 with desiccant, then close the storage cover 6, and then place the inner cover 1 into the medicine bottle. The elastic flange 4 is compressed and fits against the bottle wall. When the user observes through the storage cover 6 that the desiccant has failed, open the storage cover 6 to replace the desiccant. The inner cover 1 can be reused. When it is necessary to take out the medicine, the user can pull out the inner cover 1 through the handle 7 and take the medicine directly from the mouth of the medicine bottle; alternatively, the user can use the outer cover that matches the inner cover 1, and rotate the outer cover to align the medicine dispensing hole and the medicine outlet to take out the medicine from the medicine dispensing compartment.

[0033] In this invention, the inner cap 1 has an elastic flange 4 along its outer periphery that is detachably connected to the inner wall of the medicine bottle. Elastic connecting blocks 5 are symmetrically arranged between the inner wall of the elastic flange 4 and the outer wall of the storage box 2. Through the cooperation of the elastic connecting blocks 5 and the elastic flange 4, the elastic flange 4 fits tightly against the inner wall of the medicine bottle, achieving a radial seal and preventing external moisture from entering the medicine bottle. Simultaneously, due to the elastic deformation capability of the elastic material, the elastic flange 4 can adapt and adjust itself through elastic deformation, tightly connecting with the inner walls of various sizes of medicine bottles within a certain size range, thus improving the applicability and versatility of the inner cap 1. Pharmaceutical manufacturers do not need to design separate moisture-proof caps for specific sized medicine bottles, and users do not need to replace moisture-proof caps due to changes in medicine bottle specifications. The inner cap 1 reduces the adaptation cost for different medicine bottles and improves ease of use. This device has a simple structure, few parts, and is easy to manufacture, process, and assemble.

[0034] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A moisture-proof bottle cap, comprising an inner cap; characterized in that: The inner cover has a storage box in the middle, and the storage box has a cavity for storing desiccant. The bottom surface of the storage box has several through holes communicating with the cavity. The inner cover has an elastic flange along its outer periphery that can be detachably connected to the inner wall of the medicine bottle. The inner wall of the elastic flange and the outer wall of the storage box are symmetrically provided with elastic connecting blocks, and the number of elastic connecting blocks is at least two.

2. The moisture-proof bottle cap as described in claim 1, characterized in that: The elastic flange is interference-fitted to the inner wall of the medicine bottle.

3. A moisture-proof bottle cap as described in claim 2, characterized in that: The elastic connecting block is equipped with a compression spring inside, and the length of the elastic connecting block is less than the natural length of the compression spring.

4. A moisture-proof bottle cap as described in claim 3, characterized in that: The elastic connecting block and the compression spring are arranged along the radial direction of the inner cover.

5. A moisture-proof bottle cap as described in claim 1, characterized in that: The top surface of the storage box is detachably connected to a storage lid.

6. A moisture-proof bottle cap as described in claim 5, characterized in that: The storage lid is made of transparent material.

7. A moisture-proof bottle cap as described in claim 1, characterized in that: The elastic flange is provided with a handle.

8. A moisture-proof bottle cap as described in claim 1, characterized in that: It also includes an outer cap that is threaded to the outer wall of the medicine bottle. The top surface of the outer cap is covered with an outer cap plate. The inner side of the outer cap is connected with a planar barrier that cooperates with the inner cap. A medicine dispensing compartment is formed between the outer cap plate and the planar barrier. The planar barrier is provided with a medicine dispensing hole, and the inner cap is provided with a medicine outlet hole that cooperates with the medicine dispensing hole.

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