Solid-liquid separation bottle cap assembly and liquid storage bottle with same
By designing a solid-liquid separation bottle cap assembly, solid-liquid mixing is achieved through threaded transmission and mechanical linkage. This solves the problems of easy deactivation of premixed liquids and cumbersome solid-liquid separation drug preparation, and realizes simplified mixing operations in a closed environment.
Patent Information
- Application Number
- CN202423204281.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Premixed liquid formulations are easily affected by external factors and lose their activity. Solid formulations need to be isolated from oxygen when mixed with injections, which makes the drug preparation process cumbersome.
Design a solid-liquid separation bottle cap assembly, including an upper cap, a lower cap, and a cutting sleeve. Through threaded transmission and mechanical linkage, it enables the mixing of solid preparations and liquid oral liquids in a closed environment, and the mixture can be sealed and removed after mixing.
This technology enables the mixing of solid formulations and liquid oral solutions in a closed environment, simplifying the operation process, preventing air from affecting the activity of the drugs, and reducing environmental requirements.
Smart Images

Figure CN223560253U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid packaging technology, specifically to a solid-liquid separation bottle cap assembly and a liquid storage bottle having the same. Background Technology
[0002] In the food and health product industry, common oral liquids and beverages are usually in the form of premixed liquids. However, the biggest problem with premixed liquids is that they are easily affected by external factors and lose their activity and deteriorate, such as light, heat, oxygen, and ultraviolet rays. Therefore, some preservatives, freshness preservers, and stabilizers need to be added. Even so, compared with solid dosage forms, the stability and shelf life of premixed liquids are still significantly reduced.
[0003] Furthermore, the quality of premixed liquid preparations can change due to time and environmental factors during storage, thus limiting the development of various products such as anthocyanin-based, vitamin-based, and probiotic-based preparations. To avoid the impact of pre-mixing with water on the product's activity and shelf life for consumption, common injectable antibiotics, vaccines, and bacterial strains are sold in a solid-liquid separation manner, preparing the product as a solid dosage form. When used, the solid dosage form is diluted with the injection solution in a specific ratio. However, because the solid dosage form and injection solution are packaged separately, and most anthocyanin-based and vitamin-based drugs are easily oxidized by air, the mixing environment needs to be isolated from oxygen to prevent the solid dosage form from being exposed to air during mixing. This makes the mixing process cumbersome and requires stringent environmental conditions. Utility Model Content
[0004] In view of this, the present invention provides a solid-liquid separation bottle cap assembly and a storage bottle having the same, to solve the problem of the cumbersome process of mixing solid preparations and injection solutions.
[0005] In a first aspect, this utility model provides a solid-liquid separation bottle cap assembly, comprising:
[0006] The lower cap has a cylindrical structure and is suitable for connecting with the bottle body. A first sealing element is provided at the joint between the lower cap and the bottle mouth. A closed external thread is provided on the outer side wall of the lower cap, and a cutting internal thread is provided on the inner side wall of the lower cap.
[0007] The top cover has an inner cavity suitable for containing solid dosage forms. The inner side wall of the top cover is provided with a closed internal thread, which mates with a closed external thread. A drive unit is provided inside the top cover.
[0008] A cutting sleeve is installed inside the lower cover. The cutting sleeve has a cutting part on the side facing the first seal. The outer wall of the cutting sleeve has a cutting external thread, which mates with the cutting internal thread. The cutting sleeve has a mating part, and the driving part is adapted to abut against the mating part in the circumferential direction so that when the upper cover is opened and rotated relative to the lower cover, the cutting sleeve is driven to rotate relative to the lower cover to move toward the first seal.
[0009] A solid-liquid separation bottle cap assembly is installed on the bottle opening and works with the bottle to seal and store both solid dosage forms and liquid oral liquids. The liquid oral liquid is contained within the bottle body, while the solid dosage form is contained within the inner cavity of the upper cap. The liquid and solid dosage forms are separated by a first sealing element. During use, the solid dosage form and liquid oral liquid are mixed. By rotating the upper cap, it opens relative to the lower cap. Simultaneously, the driving part on the upper cap abuts against the mating part on the cutting sleeve, thereby driving the cutting sleeve to rotate. Under the action of the external and internal cutting threads, the cutting sleeve moves towards the first sealing element. When the cutting part contacts the first sealing element, the upper cap continues to rotate, driving the cutting sleeve to continue rotating towards the first sealing element. Under the downward pressure and rotational shearing force, the first sealing element is broken, and the solid dosage form in the upper cap falls into the bottle body under gravity and mixes with the liquid oral liquid. Throughout the mixing process, the bottle and cap remain sealed, allowing the solid dosage form and liquid oral solution to mix in a closed environment. After mixing, the cap can be rotated back to its initial position, and the mixed solution can be extracted by piercing the cap with a syringe needle. The mixing of the solid dosage form and liquid oral solution, as well as the extraction of the solution, are all conducted in a closed environment, preventing air from affecting the medication. Furthermore, the mixing process is simple, requiring no special environmental conditions; the solid dosage form and liquid oral solution can be mixed simply by rotating the cap.
[0010] In one alternative embodiment, the driving part is provided with a driving surface on one side of the upper cover in the circumferential direction, and the driving surface is parallel to the axial direction of the upper cover.
[0011] The mating part has an abutment surface on one side of the cutting sleeve along the circumferential direction, and the abutment surface is parallel to the axial direction of the cutting sleeve;
[0012] When the upper cover is opened and rotated relative to the lower cover, the driving surface is adapted to abut against the contact surface.
[0013] By setting parallel driving surfaces and contact surfaces, when the top cover is opened and rotated, the driving surfaces and contact surfaces engage with each other, thereby causing the top cover to drive the cutting sleeve to rotate together, thus destroying the first seal and ensuring the stability of the top cover driving the cutting sleeve to rotate together.
[0014] In one optional embodiment, the drive unit has a clearance ramp on the side of the upper cover facing away from the drive surface in the circumferential direction; the mating part has a relief ramp on the side of the cutting sleeve facing away from the abutment surface in the circumferential direction. The clearance ramp and the relief ramp have the same inclination direction, so that when the upper cover is closed and rotated relative to the lower cover, the clearance ramp and the relief ramp can be set as far apart as possible, so that the upper cover can only make the clearance ramp and the relief ramp come into contact with each other after rotating a large angle. This ensures that when the upper cover is rotated back onto the lower cover, it will not drive the cutting sleeve to rotate, or will only drive the cutting sleeve to rotate a small angle, reducing the resistance to the upper cover rotating back onto the lower cover and facilitating operation.
[0015] In one optional embodiment, the mating part is located at the end of the cutting sleeve; and / or, the mating part is located on the inner sidewall of the cutting sleeve. The mating part being located at the end of the cutting sleeve facilitates the mating part's engagement with the driving part to apply force. The mating part being located on the inner sidewall of the cutting sleeve facilitates the mating part applying the thrust of the driving part to the cutting sleeve, causing the cutting sleeve to rotate and improving the stability of the upper cover driving the cutting tower to rotate.
[0016] In one optional embodiment, a mounting member is provided in the inner cavity of the upper cover, extending axially along the upper cover, and a drive unit is disposed on the mounting member. By providing the mounting member, the drive unit is driven to extend toward the cutting sleeve, facilitating the interaction between the drive unit and the mating part.
[0017] In one alternative embodiment, the mounting component is a tubular structure, and the driving part is located on the outer wall of the mounting component.
[0018] In one alternative embodiment, the outer wall of the mounting component is fitted against the inner wall of the cutting sleeve. During rotation, the upper cover and the cutting sleeve rotate together, and the tubular mounting component provides support inside the cutting sleeve, improving the stability of the cutting sleeve when it rotates to cut the first seal.
[0019] In one alternative embodiment, the lower cap is adapted to be threadedly connected to the bottle body; or, the lower cap is adapted to be snap-fitted to the bottle body.
[0020] Secondly, this utility model also provides a liquid storage bottle having the solid-liquid separation cap assembly described in this utility model. Since the liquid storage bottle includes the solid-liquid separation cap assembly and has the same effect as the solid-liquid separation cap assembly, it will not be described further here.
[0021] In one optional embodiment, the system further includes a bottle body with a second seal at the bottle opening. By providing a second seal at the bottle opening, the solid reagent and the liquid oral solution are separated together using the first and second seals. This prevents accidental damage to the first seal during movement of the storage bottle, which could lead to premature mixing of the solid reagent and the liquid oral solution, and ensures that the solid reagent and the liquid oral solution are sealed in different cavity spaces during storage. Attached Figure Description
[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 A cross-sectional view of the solid-liquid separation bottle cap assembly provided in an embodiment of this utility model.
[0024] Figure 2 A perspective view of the top cover provided for an embodiment of this utility model.
[0025] Figure 3 A perspective view of the lower cover provided for an embodiment of this utility model.
[0026] Figure 4 A perspective view of the cutting sleeve provided in an embodiment of this utility model.
[0027] Figure 5 A perspective view of the liquid storage bottle provided for an embodiment of this utility model.
[0028] Figure 6 An exploded view of the liquid storage bottle provided for an embodiment of this utility model.
[0029] Explanation of reference numerals in the attached drawings: 1. Top cover; 2. Bottom cover; 3. Cutting sleeve; 4. Drive unit; 5. Fitting unit; 6. Cutting unit; 7. Mounting component; 8. Bottle body; 9. First seal; 10. Second seal. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0031] The following is combined Figures 1 to 4 The following describes embodiments of the present invention.
[0032] According to an embodiment of the present invention, a solid-liquid separation bottle cap assembly is provided, including an upper cap 1, a lower cap 2, and a cutting sleeve 3. The upper cap 1, the lower cap 2, and the cutting sleeve 3 are all cylindrical structures and are coaxially arranged after being fitted together. The upper cap 1 is located on the upper side of the lower cap 2, and the cutting sleeve 3 is located on the inner side of the lower cap 2.
[0033] The lower cover 2 is adapted to mate with the bottle body 8. An aluminum foil film serving as a first sealing element 9 is provided at the interface between the lower cover 2 and the bottle mouth of the bottle body 8. The outer wall of the lower cover 2 has a closed external thread, and the inner wall of the lower cover 2 has a cutting internal thread. The closed external thread and the cutting internal thread have opposite thread directions. The inner cavity of the upper cover 1 is adapted to contain solid preparations. The inner wall of the upper cover 1 has a closed internal thread that mates with the closed external thread. A driving part 4 is provided inside the upper cover 1. A serrated cutting part 6 is provided on the side of the cutting sleeve 3 facing the first sealing element 9. Multiple cutting parts 6 are spaced circumferentially along the bottom of the cutting sleeve 3. The outer wall of the cutting sleeve 3 has a cutting external thread that mates with the cutting internal thread. A mating part 5 is provided on the cutting sleeve 3. The driving part 4 is adapted to abut against the mating part 5 circumferentially, so that when the upper cover 1 is opened and rotated relative to the lower cover 2, it drives the cutting sleeve 3 to rotate relative to the lower cover 2 and move towards the first sealing element 9. In some other embodiments, to prevent debris from falling into the bottle body 8 after the first seal 9 is cut and damaged, the first seal 9 can also be made of organic material elastic membrane such as medical rubber membrane.
[0034] A solid-liquid separation bottle cap assembly is installed on the bottle mouth of bottle body 8 and works with bottle body 8 to seal and store solid dosage forms and liquid oral liquids together. The liquid oral liquid is contained inside bottle body 8, and the solid dosage form is contained in the inner cavity of upper cap 1. The liquid oral liquid and solid dosage form are separated by a first sealing element 9. During use, the solid dosage form and liquid oral liquid are mixed. By rotating upper cap 1, upper cap 1 opens and rotates relative to lower cap 2. Simultaneously, the driving part 4 on upper cap 1 abuts against the mating part 5 on the cutting sleeve, thereby driving the cutting sleeve 3 to rotate. Under the action of the cutting external thread and the cutting internal thread, the cutting sleeve 3 moves towards the first sealing element 9. When the cutting part 6 moves to contact the first sealing element 9, upper cap 1 continues to rotate, driving the cutting sleeve 3 to continue rotating towards the first sealing element 9. Under the downward pressure and the rotational shearing force, the first sealing element 9 is broken, and the solid dosage form in upper cap 1 falls into bottle body 8 under gravity and mixes with the liquid oral liquid. Throughout the mixing process, both the bottle 8 and the cap 1 remain sealed, allowing the solid dosage form and the liquid oral solution to mix in a closed environment. After mixing, the cap 1 can be rotated back to its initial position, and the mixed solution can be extracted by piercing the cap 1 with a syringe needle. The mixing of the solid dosage form and the liquid oral solution, as well as the extraction of the solution, are all conducted in a closed environment, preventing air from affecting the medication. Furthermore, the mixing of the solid dosage form and the liquid oral solution is achieved simply by rotating the cap 1, making the operation simple and requiring no special environmental conditions.
[0035] In one embodiment, a driving surface is provided on the driving part 4 along one side of the circumferential edge of the upper cover 1, and this driving surface is parallel to the axial direction of the upper cover 1. Simultaneously, an abutment surface is provided on the mating part 5 along one side of the circumferential edge of the cutting sleeve 3, and this abutment surface is also parallel to the axial direction of the cutting sleeve 3. When the upper cover 1 is opened and rotated relative to the lower cover 2, the driving surface is designed to engage with the abutment surface. By providing two parallel driving surfaces and an abutment surface that can align and abut against each other, the principle of mechanical transmission is cleverly utilized. When the upper cover 1 rotates during opening, the driving surface smoothly contacts the abutment surface and generates force. This force ensures that the upper cover 1 effectively drives the cutting sleeve 3 to rotate simultaneously. This linked rotation not only achieves successful destruction of the first seal 9 but also greatly ensures the stability and reliability of the upper cover 1 during the rotation of the cutting sleeve 3. This makes the transmission between the upper cover 1 and the cutting sleeve 3 smoother and more fluid, reducing the potential risk of failure due to transmission instability. Ensure the reliability of the transmission between the upper cover 1 and the cutting sleeve 3.
[0036] Furthermore, a clearance ramp is designed on the drive unit 4 along the circumferential side of the upper cover 1 opposite to the drive surface. Similarly, a clearance ramp is provided on the mating part 5 along the circumferential side of the cutting sleeve 3 opposite to the contact surface. The clearance ramp and the clearance ramp are in the same direction of inclination. This arrangement ensures that when the upper cover 1 is closed and rotated relative to the lower cover 2, the clearance ramp and the clearance ramp are positioned as far apart as possible from each other. This ensures that the clearance ramp and the clearance ramp only come into contact with each other after the upper cover 1 has rotated a large angle. During the process of the upper cover 1 rotating back to the lower cover 2, it will not immediately or easily drive the cutting sleeve 3 to rotate together, or even if the upper cover 1 can drive the cutting sleeve 3 to rotate, it will only drive the cutting sleeve 3 to rotate a small angle, rather than driving the cutting sleeve 3 to rotate continuously from beginning to end. This reduces the resistance from the cutting sleeve 3 experienced by the upper cover 1 during the rotation process, making the entire operation smoother.
[0037] Specifically, in this embodiment, a pair of driving parts 4 and mating parts 5 are provided. The pair of driving parts 4 are evenly distributed circumferentially on the upper cover 1, and the pair of mating parts 5 are evenly distributed circumferentially on the cutting sleeve 3. A relatively wide gap is provided between the pair of driving parts 4 and between the pair of mating parts 5 along the circumferential direction. The driving parts 4 and mating parts 5 are arranged alternately, with the mating parts 5 located between two driving parts 4 and the driving parts 4 located between two mating parts 5. Only two turns of the closed external thread and closed internal thread are provided, so that the upper cover 1 can be opened or closed with as few turns as possible relative to the lower cover 2.
[0038] In one embodiment, the mating part 5 is located at the end of the cutting sleeve 3, which facilitates the mating part 5 to cooperate with the driving part 4 to apply force. In some other embodiments, the mating part 5 is located on the inner wall of the cutting sleeve 3. The mating part 5 is located on the inner wall of the cutting sleeve 3, which facilitates the mating part 5 to apply the thrust of the driving part 4 to the cutting sleeve 3, causing the cutting sleeve 3 to rotate and improving the stability of the upper cover 1 driving the cutting tower to rotate.
[0039] In one embodiment, a mounting member 7 is provided in the inner cavity of the upper cover 1, extending axially along the upper cover 1, and a driving part 4 is disposed on the mounting member 7. By providing the mounting member 7, the driving part 4 is driven to extend towards the cutting sleeve 3, facilitating the interaction between the driving part 4 and the mating part 5. Specifically, the mounting member 7 is a tubular structure, and the driving part 4 is disposed on the outer side wall of the mounting member 7. The outer side wall of the mounting member 7 is fitted against the inner side wall of the cutting sleeve 3. During rotation, the upper cover 1 and the cutting sleeve 3 rotate together, and the tubular mounting member 7 provides support inside the cutting sleeve 3, improving the stability of the cutting sleeve 3 when rotating to cut the first sealing member 9.
[0040] In one embodiment, to facilitate the connection and disassembly of the lower cap 2 and the bottle body 8, the lower cap 2 is threadedly connected to the bottle body 8. In some other embodiments, the lower cap 2 can also be snap-fitted to the bottle body 8, or the lower cap 2 and the bottle body 8 can be configured as an integrally formed structure.
[0041] The solid-liquid separation cap provided in this embodiment is assembled from three parts: an upper cap 1, a lower cap 2, and a cutting sleeve 3. The solid powder raw material is filled into the central cavity of the upper cap 1, with a capacity of 0.85 ml. Sealing films are affixed to the inner end faces of the upper cap 1 and lower cap 2 to ensure the powder is sealed. A sealing film is also affixed to the bottle opening for the liquid oral solution. The lower cap 2 is screwed tightly onto the bottle body 8 without any break-bridge points. During the opening of the upper cap 1, the lower cap 2 does not rotate relative to the bottle body 8, and the lower cap 2 does not separate from the bottle body 8. The upper cap 1 and lower cap 2 are screwed together with break-bridge points, so that when the solid reagent and liquid oral solution are mixed, the upper cap 1 and lower cap 2 rotate relative to each other but do not completely separate. The lower end of the cutting sleeve 3 is provided with a serrated cutting part 6, and the cutting sleeve 3 is installed in the lower cover 2. When the upper cover 1 is opened, the driving part 4 drives the cutting sleeve to move downward in the lower cover 2, so that the cutting part 6 cuts the sealing film, allowing the solid reagent to fall into the bottle 8 and mix with the liquid oral liquid.
[0042] According to an embodiment of the present invention, on the other hand, as... Figure 5 and Figure 6 As shown, a liquid storage bottle is also provided, which has the solid-liquid separation cap assembly described in this utility model. Since the liquid storage bottle includes the solid-liquid separation cap assembly and has the same effect as the solid-liquid separation cap assembly, it will not be described again here. In this embodiment, the liquid storage bottle is used as a container for medicines such as anthocyanins, vitamins, and probiotics. In some other embodiments, the liquid storage bottle can also be used as a beverage bottle for tea, coffee, and other drinks.
[0043] In one embodiment, the storage bottle further includes a bottle body 8, with an aluminum foil film serving as a second sealing element 10 at the bottle opening. The medicine compartment in the upper cover 1 is sealed separately, and the liquid in the lower bottle opening is also sealed separately, providing two sealing layers. This ensures that both the upper solid layer and the liquid portion in the lower bottle are isolated from air and do not come into contact with air after mixing. By providing the second sealing element 10 at the bottle opening, the solid reagent and the liquid oral solution are separated using the first sealing element 9 and the second sealing element 10 together. This prevents accidental damage to the first sealing element 9 during movement of the storage bottle, which could lead to premature mixing of the solid reagent and the liquid oral solution, ensuring that the solid reagent and the liquid oral solution are sealed in different cavity spaces during storage.
[0044] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A solid-liquid separation bottle cap assembly, characterized in that, include: The lower cover (2) has a cylindrical structure. The lower cover (2) is suitable for connecting with the bottle body (8). A first sealing element (9) is provided at the bottle mouth of the lower cover (2) and the bottle body (8). A closed external thread is provided on the outer side wall of the lower cover (2), and a cutting internal thread is provided on the inner side wall of the lower cover (2). The upper cover (1) has an inner cavity suitable for containing solid preparations. The inner side wall of the upper cover (1) is provided with a closed internal thread, which is engaged with the closed external thread. The upper cover (1) is provided with a drive part (4). A cutting sleeve (3) is installed inside the lower cover (2). The cutting sleeve (3) has a cutting part (6) on the side facing the first seal (9). The outer wall of the cutting sleeve (3) is provided with a cutting external thread, which is engaged with the cutting internal thread. The cutting sleeve (3) is provided with a mating part (5). The driving part (4) is adapted to abut against the mating part (5) in the circumferential direction so as to drive the cutting sleeve (3) to rotate relative to the lower cover (2) when the upper cover (1) is opened and rotated relative to the lower cover (2) so as to move towards the first seal (9).
2. The solid-liquid separation bottle cap assembly according to claim 1, characterized in that, The driving part (4) has a driving surface on one side of the upper cover (1) along the circumferential direction, and the driving surface is parallel to the axial direction of the upper cover (1); The mating part (5) has an abutting surface on one side of the circumferential direction of the cutting sleeve (3), and the abutting surface is parallel to the axial direction of the cutting sleeve (3). When the upper cover (1) is opened and rotated relative to the lower cover (2), the driving surface is adapted to abut against the contact surface.
3. The solid-liquid separation bottle cap assembly according to claim 2, characterized in that, The drive unit (4) is provided with a clearance ramp on the side away from the drive surface along the circumference of the upper cover (1); the mating part (5) is provided with a clearance ramp on the side away from the abutment surface along the circumference of the cutting sleeve (3).
4. The solid-liquid separation bottle cap assembly according to any one of claims 1 to 3, characterized in that, The mating part (5) is provided at the end of the cutting sleeve (3); and / or, the mating part (5) is provided on the inner side wall of the cutting sleeve (3).
5. The solid-liquid separation bottle cap assembly according to any one of claims 1 to 3, characterized in that, An installation component (7) is provided in the inner cavity of the upper cover (1). The installation component (7) extends along the axial direction of the upper cover (1), and the driving part (4) is provided on the installation component (7).
6. The solid-liquid separation bottle cap assembly according to claim 5, characterized in that, The mounting component (7) is a tubular structure, and the driving part (4) is located on the outer side wall of the mounting component (7).
7. The solid-liquid separation bottle cap assembly according to claim 6, characterized in that, The outer wall of the mounting component (7) is fitted to the inner wall of the cutting sleeve (3).
8. The solid-liquid separation bottle cap assembly according to any one of claims 1 to 3, characterized in that, The lower cover (2) is adapted to be threadedly connected to the bottle body (8); or, the lower cover (2) is adapted to be snap-fitted to the bottle body (8).
9. A liquid storage bottle, characterized in that, A solid-liquid separation bottle cap assembly as described in any one of claims 1 to 8.
10. The liquid storage bottle according to claim 9, characterized in that, It also includes a bottle body (8), and a second sealing element (10) is provided at the bottle mouth of the bottle body (8).