A pharmaceutical compounding jar
By employing a bidirectional stirring rod and filtration mechanism in the pharmaceutical preparation tank, the problem of uneven stirring was solved, achieving uniform stirring and efficient filtration of the drug solution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DANDONG KANGFU PHARM CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-24
AI Technical Summary
The existing pharmaceutical preparation tank stirring devices have a simple structure, which leads to uneven mixing.
It adopts a two-way stirring rod design, which improves the stirring effect by rotating the inner and outer stirring rods in both directions. Combined with the filtration mechanism, the medicine is filtered through the filter screen, and the filtration effect is improved by the reciprocating motion of the spring and the wheel.
It achieves uniform stirring and efficient filtration of the drug solution, improving the stirring and filtration effects.
Smart Images

Figure CN224541495U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of pharmaceutical preparation tanks, and particularly relates to a pharmaceutical preparation tank. Background Technology
[0002] A preparation tank, also known as a liquid preparation tank or mixing tank, is a mixing and stirring container used to mix one or more materials according to a process ratio. Preparation tanks are manufactured and accepted according to modern GMP standards, conforming to pharmaceutical industry hygiene standards. Depending on their purpose, preparation tanks have different names, such as liquid preparation tanks, concentrated preparation tanks, diluted preparation tanks, stainless steel liquid preparation tanks, hygiene-grade liquid preparation tanks, injection liquid preparation tanks, and pharmaceutical hygiene-grade liquid preparation tanks. Based on whether they are movable, they can be divided into fixed preparation tanks and mobile preparation tanks; some are also detachable. Based on the stirring method, there are magnetic stirring preparation tanks and impeller stirring preparation tanks, as well as buffer preparation tanks. Based on the structure, they can be divided into single-layer preparation tanks, insulated stirring preparation tanks, and triple-layer insulated preparation tanks. However, existing pharmaceutical preparation tank stirring devices have simple structures, which easily lead to uneven mixing. Utility Model Content
[0003] In view of the shortcomings of the prior art, this utility model provides a pharmaceutical preparation tank, which solves the technical problem that the existing pharmaceutical preparation tank stirring device has a simple structure and is prone to uneven stirring.
[0004] To achieve the above objectives, the main technical solutions adopted by this utility model include: A pharmaceutical preparation tank includes a tank body, a gearbox fixedly mounted on the top surface of the tank body, an outer shaft rotatably mounted inside the gearbox on the upper wall of the tank body, an inner shaft rotatably mounted on the top surface of the gearbox, the inner shaft being located inside the outer shaft, the side surface of the inner shaft rotatably connected to the lower end of the outer shaft, a plurality of positive stirring rods fixedly mounted on the lower side surface of the inner shaft, a plurality of negative stirring rods fixedly mounted on the side surface of the outer shaft, a rotating shaft rotatably mounted inside the gearbox, a first driving gear and a second driving gear fixedly mounted on the side surface of the rotating shaft, a first driven gear fixedly mounted on the upper side surface of the inner shaft, an idler gear rotatably mounted on the top surface of the gearbox, the first driving gear meshing with the idler gear, the idler gear meshing with the first driven gear, a second driven gear fixedly mounted on the upper side surface of the outer shaft, the second driven gear meshing with the second driving gear, a discharge pipe fixedly mounted on the bottom surface of the tank body, and a filter mechanism provided at the bottom of the preparation tank.
[0005] Furthermore, the filtration mechanism includes a support box, the preparation tank is fixedly installed inside the upper wall of the support box, two slide rods are fixedly installed inside the support box, two sliders are slidably installed on the side surface of each slide rod, a box is fixedly installed between the four sliders, a filter screen is installed on the bottom surface of the box, and the box is located below the discharge pipe.
[0006] Furthermore, a spring is fitted on the side surface of the slide bar, one end of the spring is fixedly connected to the inner surface of the support box, and the other end of the spring is fixedly connected to the side surface of the slider. A second motor is fixedly connected to the inner surface of the support box, and a rotating arm is fixedly mounted on the drive shaft of the second motor. A rotating wheel is rotatably mounted on the outer side of the bottom surface of the rotating arm, and the rotating wheel contacts the side surface of the box.
[0007] Furthermore, a first motor is fixedly mounted on the top surface of the gearbox, and the upper end of the rotating shaft is fixedly connected to the drive shaft of the first motor.
[0008] Furthermore, a solenoid valve is installed on the discharge pipe.
[0009] Furthermore, a discharge pipe is connected to the bottom surface of the support box, and a valve is installed on the discharge pipe.
[0010] Furthermore, the upper part of the configured tank is provided with a feed inlet.
[0011] Furthermore, the bottom surface of the support box is fixedly provided with multiple support legs.
[0012] The beneficial effects of this utility model are: The forward rotation of the first driven gear drives the inner shaft to rotate in the same direction, which in turn drives the forward stirring rod to rotate in the same direction. The reverse rotation of the second driven gear drives the outer shaft to rotate in the opposite direction, which in turn drives the reverse stirring rod to rotate in the opposite direction. This makes the stirring direction of the reverse stirring rod opposite to that of the forward stirring rod, thus improving the stirring effect. The filter screen can filter the medicine liquid, leaving impurities in the medicine liquid inside the box. The reciprocating motion of the rotating wheel and the action of the spring can make the box and the filter screen reciprocate, and the reciprocating motion of the filter screen can improve the filtration effect. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a top view of the internal structure of the support box in this utility model; Figure 3 for Figure 1 A magnified structural diagram of A in the middle; Figure 4 for Figure 1 A magnified structural diagram of B in the diagram.
[0014] In the diagram: 1. Preparation tank; 2. Feed inlet; 3. Outer shaft; 4. Reverse stirring rod; 5. Inner shaft; 6. Positive stirring rod; 7. Discharge pipe; 8. Solenoid valve; 9. Slide rod; 10. Spring; 11. Box; 12. Filter screen; 13. Valve; 14. Discharge pipe; 15. Support leg; 16. First motor; 17. Rotating shaft; 18. First driving gear; 19. Second driving gear; 20. Idler gear; 21. First driven gear; 22. Gearbox; 23. Second driven gear; 24. Second motor; 25. Rotating arm; 26. Rotating wheel; 27. Support box; 28. Sliding block. Detailed Implementation
[0015] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.
[0016] like Figures 1-4As shown, this utility model provides a pharmaceutical preparation tank, including a tank body 1. A gearbox 22 is fixedly mounted on the top surface of the tank body 1. An outer shaft 3 is rotatably mounted inside the gearbox 22 on the upper wall of the tank body 1. An inner shaft 5 is rotatably mounted on the top surface of the gearbox 22, located inside the outer shaft 3. The side surface of the inner shaft 5 is rotatably connected to the lower end of the outer shaft 3. A plurality of positive stirring rods 6 are fixedly mounted on the lower side surface of the inner shaft 5. A plurality of negative stirring rods 4 are fixedly mounted on the side surface of the outer shaft 3. A rotating shaft 17 is rotatably mounted inside the gearbox 22. A first driving gear 18 and a second driving gear 19 are fixedly mounted on the side surface of shaft 17. A first driven gear 21 is fixedly mounted on the upper side surface of inner shaft 5. An idler gear 20 is rotatably mounted on the top surface of gearbox 22. The first driving gear 18 meshes with the idler gear 20, and the idler gear 20 meshes with the first driven gear 21. A second driven gear 23 is fixedly mounted on the upper side surface of outer shaft 3. The second driven gear 23 meshes with the second driving gear 19. A discharge pipe 7 is fixedly mounted on the bottom surface of the preparation tank 1. A filter mechanism is provided at the bottom of the preparation tank. The system includes a support box 27, with a preparation tank 1 fixedly mounted inside the upper wall of the support box 27. Two sliding rods 9 are fixedly mounted inside the support box 27, and two sliders 28 are slidably mounted on the side surface of each sliding rod 9. A box 11 is fixedly mounted between the four sliders 28, and a filter screen 12 is installed on the bottom surface of the box 11. The box 11 is located below the discharge pipe 7. Springs 10 are fitted onto the side surfaces of the sliding rods 9, with one end of the springs 10 fixedly connected to the inner surface of the support box 27 and the other end fixedly connected to the side surface of the sliders 28. The inner surface of the support box 27 is also fixedly connected to... A second motor 24 is provided, and a rotating arm 25 is fixedly mounted on the drive shaft of the second motor 24. A rotating wheel 26 is rotatably mounted on the outer side of the bottom surface of the rotating arm 25, and the rotating wheel 26 contacts the side surface of the box 11. A first motor 16 is fixedly mounted on the top surface of the gearbox 22, and the upper end of the rotating shaft 17 is fixedly connected to the drive shaft of the first motor 16. A solenoid valve 8 is installed on the discharge pipe 7. A discharge pipe 14 is connected to the bottom surface of the support box 27, and a valve 13 is installed on the discharge pipe 14. A feed inlet 2 is provided on the upper part of the configuration tank 1. Multiple support legs 15 are fixedly mounted on the bottom surface of the support box 27.
[0017] Those skilled in the art should electrically connect all electrical components in this case to their compatible power supplies, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working sequence of each electrical component in the following working principle to complete the electrical connection. The detailed connection methods are well-known technologies in the art. The following mainly introduces the working principle and process, and will not explain the electrical control.
[0018] In use, the raw materials are fed into the mixing tank through the inlet. Starting the first motor drives the rotating shaft to rotate forward. This forward rotation of the shaft drives both the first and second drive gears to rotate forward simultaneously. The forward rotation of the first drive gear drives the idler gear to rotate in the opposite direction. The reverse rotation of the idler gear drives the first driven gear to rotate forward. This forward rotation of the first driven gear drives the inner shaft to rotate forward. This forward rotation of the inner shaft drives the positive stirring rod to rotate forward. The forward rotation of the second drive gear drives the second driven gear to rotate in the opposite direction. This reverse rotation of the second driven gear drives the outer sleeve shaft... Reverse rotation, via the outer sleeve shaft, drives the anti-stirring rod to rotate in the opposite direction, thus improving the stirring effect. Opening the solenoid valve allows the stirred medicine to flow into the tank through the discharge pipe. The medicine is filtered through the filter screen, leaving impurities inside. Starting the second motor drives the rotating arm to rotate, which in turn drives the rotating wheel to revolve. The revolve of the wheel and the action of the spring cause the tank and filter screen to reciprocate. This reciprocating motion of the filter screen improves the filtration effect. Opening the valve allows the filtered medicine to be discharged through the discharge pipe.
[0019] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any modifications, alterations, substitutions, and variations made by those skilled in the art to the above embodiments are within the scope of the present invention.
Claims
1. A pharmaceutical preparation vessel, comprising a preparation vessel body (1), characterized in that, A gearbox (22) is fixedly mounted on the top surface of the preparation tank (1). An outer shaft (3) is rotatably mounted inside the gearbox (22) on the upper wall of the preparation tank (1). An inner shaft (5) is rotatably mounted on the top surface of the gearbox (22). The inner shaft (5) is located inside the outer shaft (3). The side surface of the inner shaft (5) is rotatably connected to the lower end of the outer shaft (3). Several positive stirring rods (6) are fixedly mounted on the lower side surface of the inner shaft (5). Several negative stirring rods (4) are fixedly mounted on the side surface of the outer shaft (3). A rotating shaft (17) is rotatably mounted inside the gearbox (22). A rotating shaft (17) is fixedly mounted on the side surface of the rotating shaft (17). There is a first driving gear (18) and a second driving gear (19). The upper side surface of the inner shaft (5) is fixedly provided with a first driven gear (21). The top surface of the gearbox (22) is rotatably provided with an idler wheel (20). The first driving gear (18) meshes with the idler wheel (20). The idler wheel (20) meshes with the first driven gear (21). The upper side surface of the outer shaft (3) is fixedly provided with a second driven gear (23). The second driven gear (23) meshes with the second driving gear (19). The bottom surface of the preparation tank (1) is fixedly provided with a discharge pipe (7). The bottom of the preparation tank is provided with a filter mechanism.
2. A pharmaceutical preparation vessel according to claim 1, characterized in that, The filtration mechanism includes a support box (27), the preparation tank (1) is fixedly installed inside the upper wall of the support box (27), two slide rods (9) are fixedly installed inside the support box (27), two sliders (28) are slidably installed on the side surface of each slide rod (9), and a box (11) is fixedly installed between the four sliders (28). A filter screen (12) is installed on the bottom surface of the box (11), and the box (11) is located below the discharge pipe (7).
3. A pharmaceutical preparation vessel according to claim 2, characterized in that, A spring (10) is fitted on the side surface of the slide rod (9). One end of the spring (10) is fixedly connected to the inner surface of the support box (27), and the other end of the spring (10) is fixedly connected to the side surface of the slider (28). A second motor (24) is fixedly connected to the inner surface of the support box (27). A rotating arm (25) is fixedly mounted on the drive shaft of the second motor (24). A rotating wheel (26) is rotatably mounted on the outer side of the bottom surface of the rotating arm (25). The rotating wheel (26) contacts the side surface of the box body (11).
4. A pharmaceutical preparation vessel according to claim 1, characterized in that, The gearbox (22) is fixedly equipped with a first motor (16) on its top surface, and the upper end of the rotating shaft (17) is fixedly connected to the drive shaft of the first motor (16).
5. A pharmaceutical preparation vessel according to claim 1, characterized in that, A solenoid valve (8) is installed on the discharge pipe (7).
6. A pharmaceutical preparation vessel according to claim 2, characterized in that, The bottom surface of the support box (27) is connected to the discharge pipe (14), and a valve (13) is installed on the discharge pipe (14).
7. A pharmaceutical preparation vessel according to claim 1, characterized in that, The preparation tank (1) is provided with a feed inlet (2) at the top.
8. A pharmaceutical preparation vessel according to claim 2, characterized in that, The bottom surface of the support box (27) is fixed with multiple support legs (15).