A microbial separation device for pharmaceutical microbiological testing
By combining the mixing and stirring components and designing limiting parts, the problems of wrinkles and curling of filter cloth in pharmaceutical microbial testing are solved, achieving high efficiency and accuracy in the separation of pharmaceutical microorganisms.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ALXA LEAGUE FOOD & DRUG INSPECTION & RES CENT
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-24
Smart Images

Figure CN224548411U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of separation device technology, and in particular to a microbial separation device for pharmaceutical microbial testing. Background Technology
[0002] In existing pharmaceutical microbiology testing, microbial separation devices typically use a method of directly laying filter cloth on a fixed filter plate to complete the filtration operation. This method is simple and direct, and can separate the drug solution from the microorganisms. The filter cloth can be replaced as needed to ensure that the filtration effect is not affected.
[0003] However, if the filter cloth is laid directly on the filter plate, the filter cloth may not be able to adhere smoothly to the surface of the filter plate due to its own elasticity or the buoyancy caused by the flow of the medicine. This can result in wrinkles or curled edges, which not only reduces the filtration efficiency but may also lead to incomplete separation of microorganisms and affect the accuracy of the detection. Utility Model Content
[0004] The purpose of this invention is to provide a microbial separation device for pharmaceutical microbial testing in order to solve the problem of existing filter cloths having wrinkles or curled edges.
[0005] To achieve the above objectives, the present invention employs the following technology: a microbial separation device for pharmaceutical microbial testing, comprising a base on which a mixing component capable of mixing pharmaceuticals with water is mounted;
[0006] The mixing assembly includes a material cylinder and a separation chamber fixedly installed on the base. Two feed pipes are connected to the top of the material cylinder. A conveying pipe and a return pipe are respectively connected between the material cylinder and the separation chamber. A rotating component capable of stirring the medicine and water is installed on the material cylinder. A separation component capable of separating microorganisms in the diluted medicine solution is installed on the separation chamber.
[0007] As a further description of the above technical solution: the rotating assembly includes a servo motor fixedly installed at the top of the material cylinder, a rotating rod rotatably installed inside the material cylinder, and several stirring blades fixedly installed on the rotating rod.
[0008] As a further description of the above technical solution: the separation assembly includes several sieve plates that are slidably installed inside the separation box. The top of the sieve plate is provided with a slot, and several vertical plates are fixedly installed on the top of the sieve plate. The slot is set between the several vertical plates by a first spring.
[0009] As a further description of the above technical solution: the size of the card plate is adapted to the card slot, the card plate is slidably mounted on the vertical plate, and the first spring is fixedly mounted between the card plate and the vertical plate.
[0010] As a further description of the above technical solution: the separation box is also equipped with a limiting component;
[0011] The limiting component includes cylinders symmetrically arranged on the inner wall of the separation box, each cylinder having a slidably connected insertion rod, and the outer wall of the insertion rod having a circular plate and a second spring.
[0012] As a further description of the above technical solution: the circular plate is fixedly installed on the insert rod, the second spring is disposed between the circular plate and the cylinder, and the second spring is located on the surface of the insert rod, and one end of the insert rod extending to the outside of the cylinder engages with the top of the clamping plate.
[0013] As a further description of the above technical solution: an L-shaped groove is provided on one side of the cylinder, and the cylinder is fixedly installed on the circular plate, with the cylinder located inside the L-shaped groove.
[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0015] The coordinated operation of the mixing and stirring components ensures uniform mixing of the medicine and dilution water, creating favorable conditions for microbial separation. Simultaneously, the sieve plate and filter cloth in the separation component effectively filter microorganisms from the medicine solution, improving separation accuracy. The design of the reflux pipe and delivery pipe allows for the recycling of the separated medicine solution, ensuring thorough separation of microorganisms. The ingenious combination of the insert rod, circular plate, second spring, and L-shaped groove in the limiting component allows the clamping plate to descend into the groove and press and fix the edge of the filter cloth, enabling the filter cloth to lie flat on the sieve plate. This further enhances the stability of the filter cloth fixation. When the filter cloth is impacted by the flow of medicine, the limiting component effectively restricts the displacement of the filter cloth, ensuring its flatness. Attached Figure Description
[0016] Figure 1 An overall schematic diagram according to an embodiment of the present utility model is shown;
[0017] Figure 2 The present invention provides an embodiment of the present invention. Figure 1 Another perspective view;
[0018] Figure 3 A cross-sectional view of a barrel provided according to an embodiment of the present invention is shown;
[0019] Figure 4 A schematic diagram of the detachable components according to an embodiment of the present invention is shown;
[0020] Figure 5 A diagram showing the positional relationship between the card slot and the card plate according to an embodiment of the present invention is shown;
[0021] Figure 6 A schematic diagram of a limiting component provided according to an embodiment of the present invention is shown.
[0022] Legend:
[0023] 10. Base;
[0024] 20. Mixing component; 21. Material cylinder; 22. Separation box; 23. Feed pipe; 24. Conveying pipe; 25. Return pipe; 26. Rotating component; 261. Servo motor; 262. Rotating rod; 263. Stirring blade;
[0025] 30. Separation component; 31. Screen plate; 32. Slot; 33. Vertical plate; 34. Slot plate; 35. First spring; 36. Limiting component; 361. Cylinder; 362. Insert rod; 363. Circular plate; 364. Second spring; 365. L-shaped groove; 366. Column. Detailed Implementation
[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0027] Reference Figure 1 - Figure 6 The microbial separation device for drug microbial testing provided in this embodiment includes a base 10, on which a mixing component 20 capable of mixing drugs with water is assembled.
[0028] The mixing assembly 20 includes a material cylinder 21 and a separation chamber 22 fixedly mounted on the base 10. Two feed pipes 23 are connected to the top of the material cylinder 21, through which medicine and water for dilution can be injected into the material cylinder 21 in sequence. A delivery pipe 24 and a return pipe 25 are respectively connected between the material cylinder 21 and the separation chamber 22. Water pumps are respectively installed on the delivery pipe 24 and the return pipe 25. The diluted medicine can be delivered to the separation chamber 22 through the delivery pipe 24, so that the microorganisms in the medicine can be separated inside the separation chamber 22. The separated medicine will flow back into the material cylinder 21 through the return pipe 25, thus circulating and ensuring that the microorganisms in the medicine can be fully separated. The material cylinder 21 is equipped with a rotating assembly 26 that can stir the medicine and water, and the separation chamber 22 is equipped with a separation assembly 30 that can separate the microorganisms in the diluted medicine.
[0029] Reference Figure 1 - Figure 3Specifically, in order to ensure that the medicine is fully mixed with the diluted water, a rotating assembly 26 is provided. The rotating assembly 26 includes a servo motor 261 fixedly installed at the top of the barrel 21, a rotating rod 262 rotatably installed inside the barrel 21, and the rotating rod 262 is fixedly installed on the output end of the servo motor 261. The servo motor 261 can drive the rotating rod 262 to start rotating. Several stirring blades 263 are fixedly installed on the rotating rod 262. The rotating rod 262 can drive the stirring blades 263 to start rotating, thereby ensuring that the medicine inside the barrel 21 is fully mixed with the diluted water.
[0030] Reference Figure 4 - Figure 5 Specifically, in order to separate microorganisms in the medicine solution, a separation component 30 is provided. The separation component 30 includes several sieve plates 31 that are slidably installed inside the separation box 22. Filter cloth is laid on the sieve plates 31. The filter cloth laid on the sieve plates 31 can filter the microorganisms in the medicine solution, thereby separating them. A slot 32 is opened at the top of the sieve plate 31. Several vertical plates 33 are fixedly installed at the top of the sieve plate 31. A locking plate 34 is set between the vertical plates 33 by a first spring 35. The reaction force of the first spring 35 causes the locking plate 34 to rise and reset. In the initial state, the locking plate 34 engages with the slot 32, thereby pressing and fixing the edge of the filter cloth, so that the filter cloth can be tightly attached to the sieve plate 31, separating the microorganisms from the medicine solution.
[0031] In more detail, the size of the card plate 34 is adapted to the card slot 32, so the card plate 34 can engage with the card slot 32. The card plate 34 is slidably mounted on the vertical plate 33, and the first spring 35 is fixedly mounted between the card plate 34 and the vertical plate 33. In use, the two feed pipes 23 can sequentially inject medicine and water for dilution into the material cylinder 21. Then, the servo motor 261 is started, which drives the rotating rod 262 to rotate several stirring blades 263, so that the medicine in the material cylinder 21 can be fully mixed with the diluted water. Then, by starting the water pump on the conveying pipe 24, the conveying pipe 24 can transport the diluted medicine to the separation tank 22. When the medicine passes through several sieve plates 31, the filter cloth on the sieve plate 31 plays a filtering role, so that the microorganisms in the medicine can remain on the filter cloth. The separated medicine will flow back into the material cylinder 21 through the return pipe 25 to circulate, so that the microorganisms in the medicine can be fully separated.
[0032] Reference Figure 6 Specifically, in order to lay the filter cloth flat on the sieve plate 31, a limiting component 36 is also installed on the separation box 22;
[0033] The limiting component 36 includes cylinders 361 symmetrically arranged on the inner wall of the separation box 22. Each cylinder 361 is slidably connected with a rod 362. The outer wall of the rod 362 is provided with a circular plate 363 and a second spring 364.
[0034] In more detail, the circular plate 363 is fixedly mounted on the insert rod 362, and the insert rod 362 can drive the circular plate 363 to move. The second spring 364 is disposed between the circular plate 363 and the cylinder 361, and the second spring 364 is located on the surface of the insert rod 362. The reaction force of the second spring 364 enables the circular plate 363 to drive the insert rod 362 to reset. One end of the insert rod 362 extending to the outside of the cylinder 361 is engaged with the top of the clamping plate 34, and the insert rod 362 can rotate at the connection of the clamping plate 34.
[0035] In more detail, an L-shaped groove 365 is provided on one side of the cylinder 361. The cylinder 366 is fixedly installed on the circular plate 363 and is located in the L-shaped groove 365. After separation, the door on the separation box 22 is opened, and the insertion rod 362 is rotated. The insertion rod 362 drives the circular plate 363 and the cylinder 366 to start rotating, so that the cylinder 366 moves from the horizontal groove of the L-shaped groove 365 to the vertical groove, thereby releasing the restriction on the cylinder 366. Then, the reaction force of the second spring 364 and the first spring 35 allows the insertion rod 362 and the clamping plate 34 to rise and reset, so that the clamping plate 34 disengages from the clamping groove 32, thereby releasing the fixation of the filter cloth. Then the filter cloth can be removed to remove the microorganisms.
[0036] When the filter cloth needs to be laid, simply lay the filter cloth on the sieve plate 31, and then press down the insert rod 362 to push the clamping plate 34 down into the clamping groove 32, thereby pressing and fixing the edge of the filter cloth. Then rotate the insert rod 362 to make the circular plate 363 drive the cylinder 366 to rotate into the transverse groove of the L-shaped groove 365, so that the circular plate 363 cannot be reset by the reaction force of the second spring 364, thereby limiting the clamping plate 34.
[0037] If the sieve plate 31 needs to be removed for cleaning, simply pull the insert rod 362 upwards to disengage it from the clamping plate 34, and then pull the sieve plate 31 out.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A microbial separation device for pharmaceutical microbial testing, comprising a base (10), characterized in that, The base (10) is equipped with a mixing component (20) capable of mixing the medicine with water; The mixing component (20) includes a material cylinder (21) and a separation box (22) fixedly installed on the base (10). Two feed pipes (23) are connected to the top of the material cylinder (21). A conveying pipe (24) and a return pipe (25) are respectively connected between the material cylinder (21) and the separation box (22). A rotating component (26) capable of stirring the medicine and water is installed on the material cylinder (21). A separation component (30) capable of separating microorganisms in the diluted medicine solution is installed on the separation box (22).
2. The microbial separation device for pharmaceutical microbial testing according to claim 1, characterized in that, The rotating assembly (26) includes a servo motor (261) fixedly installed at the top of the barrel (21), a rotating rod (262) rotatably installed inside the barrel (21), and several stirring blades (263) fixedly installed on the rotating rod (262).
3. The microbial separation device for pharmaceutical microbial testing according to claim 1, characterized in that, The separation assembly (30) includes several sieve plates (31) that are slidably installed inside the separation box (22). The top of the sieve plate (31) is provided with a slot (32). Several vertical plates (33) are fixedly installed on the top of the sieve plate (31). The slot plate (34) is set between the several vertical plates (33) by a first spring (35).
4. The microbial separation device for pharmaceutical microbial testing according to claim 3, characterized in that, The size of the card plate (34) is adapted to the card slot (32), the card plate (34) is slidably mounted on the vertical plate (33), and the first spring (35) is fixedly mounted between the card plate (34) and the vertical plate (33).
5. The microbial separation device for pharmaceutical microbial testing according to claim 3, characterized in that, The separation box (22) is also equipped with a limiting component (36); The limiting component (36) includes cylinders (361) symmetrically arranged on the inner wall of the separation box (22), and each cylinder (361) is slidably connected with a rod (362). The outer wall of the rod (362) is provided with a circular plate (363) and a second spring (364).
6. The microbial separation device for pharmaceutical microbial testing according to claim 5, characterized in that, The circular plate (363) is fixedly installed on the insert rod (362), and the second spring (364) is disposed between the circular plate (363) and the cylinder (361), and the second spring (364) is located on the surface of the insert rod (362). One end of the insert rod (362) extending to the outside of the cylinder (361) engages with the top of the clamping plate (34).
7. The microbial separation device for pharmaceutical microbial testing according to claim 6, characterized in that, The cylinder (361) has an L-shaped groove (365) connected to one side, and the cylinder (366) is fixedly installed on the circular plate (363), with the cylinder (366) located in the L-shaped groove (365).