Liquid medicine preparation device for eyedrop production
By designing a rotatable filter screen and an arc-shaped scraper, magnetic attraction is used to clean the waste residue on the surface of the filter screen, solving the problem of low filter screen cleaning efficiency in existing devices and improving the efficiency and quality of drug preparation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-03-06
AI Technical Summary
In the waste separation stage of existing eye drop production equipment, the filter screen is difficult to clean effectively, which affects the cleaning efficiency and the quality of eye drop preparation.
By designing a rotatable filter screen and an arc-shaped scraper, the magnetic attraction is used to drive the scraper to clean the waste residue on the surface of the filter screen, and the mixing efficiency of the medicine solution is improved in conjunction with the stirring structure.
It achieves efficient cleaning of the filter screen and stirring of the medicine, improving the efficiency of waste residue cleaning and the speed of medicine preparation.
Smart Images

Figure CN223969856U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of eye drop production, and more specifically, to an eye drop preparation device for eye drop production. Background Technology
[0002] Eye drops are one of the most commonly used drug dosage forms for ophthalmic diseases. For many eye conditions, eye drops offer direct and rapid treatment. Patent publication number CN214437146U discloses a drug preparation device for eye drop production; belonging to the field of eye drop production technology. Its key technical features include an outer cylinder with an inner cylinder installed inside. Both the outer and inner cylinders have feed inlets at their tops. A drive motor is fixedly connected to the top of the inner cylinder. A slag discharge mechanism is installed inside the inner cylinder, comprising a vertical frame with a lifting block slidably connected inside. Multiple connecting rods are fixedly connected around the lifting block. This invention utilizes an air pump, which inflates a telescopic air bladder through an air pipe. The inflated air bladder pushes the lifting block upwards, causing the elastic filter screen to move upwards, separating the waste residue from the clear liquid. The waste residue is then lifted upwards to the upper part of the inner cylinder, where it can be removed through the feed inlet. Overall, this invention effectively improves the convenience of cleaning.
[0003] In existing technologies, during the final stage of waste separation, the aforementioned device requires the filter screen to be moved upwards, causing the waste to be removed from the feed inlet. This process presents several problems. First, when the filter screen is raised to the top, workers need to manually clean the waste from the feed inlet. Due to the fixed position and limited size of the feed inlet, the efficiency of waste cleaning is greatly affected, making it even more difficult to clean the waste on the filter screen surface away from the feed inlet. Even using suction to clean it is quite troublesome, thus reducing the overall practicality of the device during the cleaning process. Second, residue remains on the filter screen surface, which is difficult to clean thoroughly, affecting the next preparation of the medicine and reducing the quality of the prepared medicine. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a solution preparation device for eye drop production. It can change the position of the cleaning brush by raising and lowering the filter screen, thereby changing its control state. The brush can rotate with the inner cylinder or with the toothed ring, which facilitates the cleaning and scraping of the filter screen surface. This allows waste residue to be moved to the bottom of the feed inlet for easy cleaning by the staff. It can also improve the liquid stirring rate during the solution preparation process and improve the preparation efficiency.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] An eye drop preparation apparatus includes a preparation tank. A cover is detachably installed on the top of the preparation tank. A second motor is fixedly installed in the middle of the cover. An inner cylinder is fixedly sleeved on the output shaft of the second motor. A vertical frame is arranged in the middle inside the inner cylinder. A limit ring is fixedly installed on the outer wall of the top of the vertical frame. A filter screen is slidably installed inside the vertical frame. A fixing ring is fixedly installed on the bottom surface of the top of the inner cylinder. A sliding groove is opened inside the fixing ring. A protruding rod is movably sleeved inside the sliding groove. A connecting ring is fixedly installed at the bottom end of the protruding rod.
[0009] Furthermore, a motor is fixedly installed on the outer wall of the preparation barrel, and a gear is fixedly sleeved on the output shaft of the motor. A fitting ring is rotatably installed inside the outer wall of the preparation barrel, and a toothed ring is integrally formed on the outer wall of the fitting ring. The surface of the toothed ring and the surface of the gear mesh with each other.
[0010] Furthermore, a guide groove is provided on the top surface of the toothed ring, a guide rod is fixedly installed inside the guide groove, a slide rod is slidably installed on the surface of the guide rod, a magnetic block is fixedly installed at the top of the slide rod, a spring is fixedly connected to the side of the slide rod, and the other end of the spring is fixedly connected to the inside of the guide groove.
[0011] Furthermore, the side of the first magnetic block is in contact with the outer wall of the preparation barrel, and the spring is movably sleeved on the surface of the guide rod.
[0012] Furthermore, a connecting shaft and a plug are fixedly installed at the bottom end of the connecting ring, an arc-shaped scraper is fixedly connected to the bottom end of the connecting shaft, and a magnetic block is fixedly connected to the outer end of the arc-shaped scraper.
[0013] Furthermore, the outer wall of the second magnetic block is attached to the inner wall surface of the inner cylinder and attracts the first magnetic block.
[0014] Furthermore, the size of the insertion rod is compatible with the size of the limiting ring, and the number of both is the same.
[0015] 3. Beneficial Effects
[0016] Compared with existing technologies, the advantages of this utility model are:
[0017] (1) This scheme utilizes the toothed ring to drive the magnetic block to rotate during rotation, and the magnetic attraction of the two magnetic blocks drives the arc scraper to rotate, scraping and cleaning the waste residue on the surface of the filter screen, improving the cleaning efficiency of the filter screen, and moving the waste residue to the lower end of the feed inlet for easy cleaning and recycling, thus improving the overall cleaning efficiency of the device.
[0018] (2) This scheme utilizes the insertion rod in conjunction with the limiting ring to allow the arc-shaped scraper to rotate together with the drive shaft of the cover during the cleaning process, thereby stirring the mixture inside the preparation tank, thus improving the overall stirring efficiency, accelerating the drug preparation speed, and improving the working efficiency of the equipment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic cross-sectional view of the internal structure of the preparation barrel in this utility model;
[0021] Figure 3 This is a schematic diagram of the toothed ring structure in this utility model;
[0022] Figure 4 This is a schematic diagram of the magnetic block structure in this utility model;
[0023] Figure 5 This is a schematic diagram of the connecting ring structure in this utility model;
[0024] Figure 6 This is a schematic diagram of the internal structure of the fixing ring in this utility model.
[0025] Explanation of the labels in the diagram:
[0026] 1. Preparation barrel; 2. Motor 1; 3. Gear; 4. Gear ring; 5. Cover; 6. Motor 2; 7. Inner cylinder; 8. Fixing ring; 9. Connecting ring; 101. Stand; 102. Filter screen; 103. Limiting ring; 401. Fitting ring; 402. Guide groove; 403. Magnetic block 1; 404. Sliding rod; 405. Guide rod; 406. Spring; 801. Sliding groove; 901. Protruding rod; 902. Connecting shaft; 903. Arc-shaped scraper; 904. Magnetic block 2; 905. Insert rod. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] Example 1:
[0031] Please see Figure 1-6 An eye drop preparation device includes a preparation tank 1, a cover 5 detachably mounted on the top of the preparation tank 1, a motor 6 fixedly mounted in the middle of the cover 5, an inner cylinder 7 fixedly sleeved on the output shaft of the motor 6, a support frame 101 arranged in the middle inside the inner cylinder 7, a limit ring 103 fixedly mounted on the outer wall of the top of the support frame 101, a filter screen 102 slidably mounted inside the support frame 101, a fixing ring 8 fixedly mounted on the bottom surface of the top of the inner cylinder 7, a sliding groove 801 opened inside the fixing ring 8, a protruding rod 901 movably sleeved inside the sliding groove 801, and a connecting ring 9 fixedly mounted on the bottom end of the protruding rod 901.
[0032] It should be noted that the frame 101, filter screen 102, and inner cylinder 7 in this application have the same structure and function as the same components in the prior art. Therefore, the specific connection method and structural construction between such components are all existing mature technologies, so they will not be described in detail in this application.
[0033] A motor 2 is fixedly installed on the outer wall of the preparation barrel 1. A gear 3 is fixedly sleeved on the output shaft of the motor 2. A fitting ring 401 is rotatably installed inside the outer wall of the preparation barrel 1. A toothed ring 4 is integrally formed on the outer wall of the fitting ring 401. The surface of the toothed ring 4 meshes with the surface of the gear 3. A guide groove 402 is opened on the top surface of the toothed ring 4. A guide rod 405 is fixedly installed inside the guide groove 402. A slide rod 404 is slidably installed on the surface of the guide rod 405. A magnetic block 403 is fixedly installed at the top of the slide rod 404. A spring 406 is fixedly connected to the side of the slide rod 404. The other end of the spring 406 is fixedly connected to the inside of the guide groove 402. The side of the magnetic block 403 is in contact with the outer wall of the preparation barrel 1. The spring 406 is movably sleeved on the surface of the guide rod 405.
[0034] Specifically, the spring 406 allows the magnetic block 403 to lose its magnetic attraction when it is not attracted, and move outward so that it does not stick to the outer wall of the preparation barrel 1 to prevent scratching. The inner wall of the magnetic block 403 is attached to the outer wall of the preparation barrel 1. The matching shape of the two is to make it easier for the magnetic block 403 to stay attached to the outer wall of the preparation barrel 1 during the rotation process, so as to ensure the magnetic attraction area. Finally, the fitting ring 401 ensures the rotation limit of the entire gear ring 4 and prevents the displacement from affecting the transmission with the gear 3.
[0035] The bottom end of the connecting ring 9 is fixedly installed with a connecting shaft 902 and a plug rod 905. The bottom end of the connecting shaft 902 is fixedly connected with an arc-shaped scraper 903. The outer end of the arc-shaped scraper 903 is fixedly connected with a magnetic block 904. The outer wall of the magnetic block 904 is attached to the inner wall surface of the inner cylinder 7 and attracts each other with the magnetic block 403. The size of the plug rod 905 is compatible with the size of the limiting ring 103, and the number of the two is the same.
[0036] Specifically, the protruding rod 901 and sliding groove 801 allow the fixed ring 8 and connecting ring 9 to be movably connected without affecting their rotation. Secondly, the insertion rod 905, in conjunction with the limiting ring 103, locks the connecting ring 9 when it is in a low position, allowing it to rotate with the whole structure to achieve the stirring purpose. Finally, the magnetic block 904, which adheres to the inner wall of the inner cylinder 7, attracts the magnetic block 403 on the outer wall of the preparation tank 1, causing it to rotate passively. This allows the arc-shaped scraper 903 to scrape and clean the top surface of the filter screen 102. This eliminates the need for additional internal structures that could affect the internal preparation capacity, improves the mixing rate and waste removal rate, and ultimately enhances the equipment's preparation efficiency.
[0037] The working principle of this utility model is as follows: When the inner cylinder 7 rotates with the drive shaft of motor 6, the rod 905 inside the support frame 101, filter screen 102, and limiting ring 103 drives the arc-shaped scraper 903 to rotate together, thereby mixing and stirring the internal liquid and accelerating the mixing rate. When the waste residue is separated inside, the filter screen 102 is lifted, causing the waste residue to move upward. When it comes into contact with the arc-shaped scraper 903, it is driven to rise together. When it moves to a high position, the rod 905 is released from the binding of the limiting ring 103. At this time, the second magnetic block 904 is in a position level with the first magnetic block 403, and the two attract each other. Then, motor 2 is started to drive the gear 3 to rotate, which, together with the gear ring 4, drives the first magnetic block 403 to rotate on the outer wall of the preparation barrel 1. At the same time, the second magnetic block 904 inside the inner cylinder 7 rotates, causing the arc-shaped scraper 903 to scrape the top surface of the filter screen 102, moving the waste residue in sections to the bottom of the feed inlet of the cover 5, where workers can then clean it in sequence.
[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A solution preparation device for eye drop production, comprising a preparation barrel (1), characterized in that: The top of the preparation barrel (1) is detachably installed with a cover (5), the middle part of the cover (5) is fixedly installed with a motor two (6), the output shaft of the motor two (6) is fixedly sleeved with an inner cylinder (7), the middle of the inner cylinder (7) is provided with a stand (101), the top end outer wall of the stand (101) is fixedly installed with a limiting ring (103), the inner part of the stand (101) is slidably installed with a filter screen (102), the bottom surface of the top end of the inner cylinder (7) is fixedly installed with a fixed ring (8), the inner part of the fixed ring (8) is provided with a sliding groove (801), the inner part of the sliding groove (801) is movably sleeved with a convex rod (901), the bottom end of the convex rod (901) is fixedly installed with a connecting ring (9).
2. The eye drop preparation device for eye drop production according to claim 1, characterized in that: The outer wall of the preparation barrel (1) is fixedly installed with a motor one (2), the output shaft of the motor one (2) is fixedly sleeved with a gear (3), the inner part of the outer wall of the preparation barrel (1) is rotatably installed with an embedded ring (401), the outer wall of the embedded ring (401) is integrally formed with a tooth ring (4), the surface of the tooth ring (4) and the surface of the gear (3) are mutually engaged.
3. The device for producing eye drops according to claim 2, characterized in that: The top surface of the tooth ring (4) is provided with a guide groove (402), the inner part of the guide groove (402) is fixedly installed with a guide rod (405), the surface of the guide rod (405) is slidably installed with a sliding rod (404), the top end of the sliding rod (404) is fixedly installed with a magnetic block one (403), the side surface of the sliding rod (404) is fixedly connected with a spring (406), the other end of the spring (406) is fixedly connected in the inner part of the guide groove (402).
4. The device for producing eye drops according to claim 3, characterized in that: The side surface of the magnetic block one (403) and the outer wall of the preparation barrel (1) are mutually attached, the spring (406) is movably sleeved on the surface of the guide rod (405).
5. The eye drop preparation device for eye drop production according to claim 1, characterized in that: The bottom end of the connecting ring (9) is fixedly installed with a connecting shaft (902) and an insertion rod (905) respectively, the bottom end of the connecting shaft (902) is fixedly connected with an arc-shaped scraping strip (903), the outer end of the arc-shaped scraping strip (903) is fixedly connected with a magnetic block two (904).
6. The device for producing eye drops according to claim 5, characterized in that: The outer wall of the magnetic block two (904) is attached to the inner wall surface of the inner cylinder (7), and is mutually attracted with the magnetic block one (403).
7. The device for producing eye drops according to claim 5, characterized in that: The size of the insertion rod (905) and the size of the limiting ring (103) are matched, and the number of the two is the same.
Citation Information
Patent Citations
Eyedrop preparation device for eyedrop production
CN214437146U