Medicine bottle screw cap locking mechanism
By designing a screw cap locking mechanism for medicine bottles, and utilizing the combination of annular protrusions and limiting grooves, along with spring support, the problem of loose traditional medicine bottle caps has been solved. This achieves stability and sealing of the medicine bottle cap, improving the safety and ease of use of medicines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-06
AI Technical Summary
Traditional medicine bottles lack an effective locking mechanism, which makes the caps prone to loosening or falling off during transportation and use, affecting the sealing and safety of the medicines.
Design a medicine bottle cap locking mechanism, including an outer shell and an inner shell. Through the cooperation of an annular protrusion and a limiting groove, combined with the elastic support of a spring, ensure that the inner shell rotates stably and locks within the outer shell, preventing it from coming off.
It improves the stability and sealing of the medicine bottle cap, prevents loosening caused by external contact, and ensures the safety and ease of use of medicines.
Smart Images

Figure CN223973075U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of capping technology, specifically a medicine bottle capping and locking mechanism. Background Technology
[0002] In the medical and pharmaceutical industries, the sealing and locking of medicine bottles is a crucial step in ensuring drug safety and quality. Traditional medicine bottles typically use simple screw caps or flip-top designs, lacking effective locking mechanisms. This design presents several problems in practical use, limiting its application in terms of efficiency and safety.
[0003] Lack of locking mechanism:
[0004] Traditional medicine bottles typically lack a dedicated locking mechanism; the cap is secured to the bottle with a simple screw or clip. This design makes the bottle susceptible to external friction and vibration during transportation and use, causing the cap to loosen or even detach, thus compromising the seal and safety of the medicine.
[0005] Therefore, a screw cap locking mechanism for medicine bottles is needed to improve the above-mentioned problems. Utility Model Content
[0006] The purpose of this invention is to provide a medicine bottle cap locking mechanism to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A medicine bottle cap locking mechanism includes an outer shell and an inner shell. The inner side of the outer shell is fixedly provided with an annular protrusion, and the upper end of the inner side of the outer shell is fixedly provided with an insert block. The upper end of the inner shell is provided with a groove, and the upper end of the groove is fixedly provided with a spring. The upper surface of the inner shell is provided with a limiting groove.
[0009] As a preferred embodiment of this utility model, an annular protrusion 1 is fixedly provided on the outer surface of the inner shell, and the lower surface of the annular protrusion 1 fits against the upper surface of the annular protrusion 2.
[0010] As a preferred embodiment of this utility model, both the limiting groove and the insert block are arranged in a ring shape, and the limiting groove and the insert block are compatible with each other.
[0011] As a preferred embodiment of this utility model, the limiting groove and the insert block are arranged correspondingly on the top and bottom.
[0012] As a preferred embodiment of this utility model, the lower inner surface of the inner shell is provided with a swirl groove.
[0013] As a preferred embodiment of this utility model, the upper end of the spring is fitted and connected to the inner upper surface of the outer casing.
[0014] As a preferred embodiment of this utility model, the outer surface of the outer shell is provided with anti-slip protrusions.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention uses a spring to disengage the insert and limiting groove of the outer shell and inner shell, thereby blocking the first annular protrusion and preventing the inner shell from detaching from the outer shell. At this time, external contact and friction will cause the outer shell to rotate, but will not affect the connection between the inner shell and the medicine bottle. When in use, press the outer shell to insert the insert into the limiting groove and then rotate to open. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0018] Figure 2 This is a three-dimensional bottom view of the inner shell structure of this utility model;
[0019] Figure 3 This is a three-dimensional top view of the inner shell structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the front structure of the inner shell of this utility model;
[0021] Figure 5 This is a three-dimensional bottom view of the outer shell structure of this utility model;
[0022] Figure 6 This is a schematic diagram of the overall bottom view of the present invention;
[0023] Figure 7 This is a schematic diagram of the overall front view of the present invention.
[0024] In the diagram: 1. Outer shell; 2. Inner shell; 3. Annular protrusion one; 4. Rotary groove; 5. Groove; 6. Limiting groove; 7. Spring; 8. Insert block; 9. Annular protrusion two. Detailed Implementation
[0025] 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.
[0026] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0027] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0028] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0029] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0030] Please see Figure 1-7 This utility model provides a technical solution:
[0031] A medicine bottle capping and locking mechanism includes an outer shell 1 and an inner shell 2. An annular protrusion 9 is fixedly provided on the inner side of the outer shell 1, and an insert block 8 is fixedly provided on the upper end of the inner side of the outer shell 1. A groove 5 is provided on the upper end of the inner shell 2, and a spring 7 is fixedly provided on the upper end of the groove 5. A limiting groove 6 is provided on the upper surface of the inner shell 2. Through the engagement of the annular protrusion 9 and the annular protrusion 3, and the cooperation of the limiting groove 6 and the insert block 8, the inner shell 2 can rotate stably within the outer shell 1. Simultaneously, the spring 7 provides elastic support, ensuring smooth capping and reliable locking.
[0032] As an example of this utility model, an annular protrusion 3 is fixedly provided on the outer surface of the inner shell 2, and the lower surface of the annular protrusion 3 fits against the upper surface of the annular protrusion 9. This design allows the inner shell 2 to move stably up and down within the outer shell 1 while maintaining good coaxiality, ensuring the accuracy of the capping action.
[0033] As an example of this utility model, both the limiting groove 6 and the insert block 8 are arranged in a ring shape, and the limiting groove 6 and the insert block 8 are compatible with each other. The design of the ring-shaped limiting groove 6 and the insert block 8 allows the inner shell 2 to rotate smoothly within the outer shell 1, while preventing the inner shell 2 from moving axially during rotation, thus ensuring the stability and reliability of the cap.
[0034] As an example of this utility model, the limiting groove 6 and the insert block 8 are arranged correspondingly on the top and bottom. This corresponding arrangement ensures a precise fit between the inner shell 2 and the outer shell 1, so that the capping mechanism can remain stable during operation and prevent capping failure due to component misalignment.
[0035] As an example of this utility model, a spiral groove 4 is provided on the lower inner surface of the inner shell 2. The design of the spiral groove 4 allows the capping mechanism to fit tightly with the cap of the medicine bottle, and the cap is locked by rotating the inner shell 2, ensuring the sealing of the cap.
[0036] As an example of this utility model, the upper end of the spring 7 is fitted and connected to the inner upper surface of the outer casing 1. The elastic action of the spring 7 provides an upward supporting force to the inner casing 2, so that the inner casing 2 can remain in its initial position when no external force is applied, while providing appropriate elastic cushioning during the capping process to ensure the smoothness of the capping action.
[0037] As an example of this utility model, the outer surface of the outer shell 1 is provided with anti-slip ridges. The design of the anti-slip ridges increases the friction when the operator holds the outer shell 1, preventing operational errors caused by slipping during the capping process, and improving the safety and convenience of use.
[0038] Working principle: When in use, the spring 7 drives the insert 8 and the limiting groove 6 of the outer shell 1 and the inner shell 2 to disengage, so that the second annular protrusion 9 blocks the first annular protrusion 3, thereby preventing the inner shell 2 from disengaging from the outer shell 1. At this time, external contact and friction on the outer shell 1 will cause the outer shell 1 to rotate, which will not affect the connection between the inner shell 2 and the medicine bottle. When in use, press the outer shell 1 to insert the insert 8 into the limiting groove 6 and then rotate to open.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cap screwing and locking mechanism for a medicine bottle comprising an outer casing (1) and an inner casing (2), characterized in that: The outer shell (1) is internally fixed with annular convex rib two (9), the outer shell (1) is internally fixed with plug (8) on the upper end, the inner shell (2) is provided with recess (5) on the upper end, the recess (5) is fixed with spring (7) on the upper end, the surface of the inner shell (2) is provided with limiting slot (6).
2. The vial cap screwing and locking mechanism according to claim 1, characterized in that: The inner shell (2) is fixed with annular convex rib one (3) on the outer surface, and the lower surface of annular convex rib one (3) is attached to the upper surface of annular convex rib two (9).
3. The vial cap screwing and locking mechanism according to claim 2, characterized in that: The limiting slot (6) and the plug (8) are both annularly arranged, and the limiting slot (6) and the plug (8) are adapted to each other.
4. The vial cap screwing and locking mechanism according to claim 3, characterized in that: The limiting slot (6) and the plug (8) are correspondingly arranged.
5. The vial cap screwing and locking mechanism according to claim 4, characterized in that: The inner shell (2) is internally fixed with annular convex rib two (9), the outer shell (1) is internally fixed with plug (8) on the upper end, the inner shell (2) is provided with recess (5) on the upper end, the recess (5) is fixed with spring (7) on the upper end, the surface of the inner shell (2) is provided with limiting slot (6).
6. A vial cap screwing and locking mechanism according to claim 5, characterized in that: The spring (7) is attached to the inner surface of the outer shell (1) on the upper end.
7. A pill bottle cap screwing and locking mechanism according to claim 6, characterized in that: The outer surface of the outer shell (1) is provided with anti-skid convex rib.