Pretreatment device for medicine inspection

Abstract

The utility model discloses a pretreatment device for medicine inspection. The pretreatment device comprises a medicine dissolving tank, a filtering tank and a medicine dissolving solution collecting tank which are communicated with one another, the medicine dissolving tank is also communicated with a solvent storage tank; a stirring device is arranged in the medicine dissolving tank, the stirring device comprises a stirring shaft rotationally arranged in the medicine dissolving tank and a stirring motor connected with the stirring shaft, a plurality of crushing teeth are arranged on the stirring shaft, and the medicine dissolving tank is sleeved with a grinding cylinder on the outer side of the stirring device; a plurality of filtering holes are formed in the side wall of the grinding cylinder, a plurality of first grinding teeth are further arranged on the side wall of the grinding cylinder, and the first grinding teeth and the smashing teeth are arranged in a staggered mode; and an electric heating sheet is arranged in the solvent storage tank. The device can effectively grind and crush medicines, can also control the dissolving temperature, and greatly improves the crushing and grinding effect and dissolving efficiency of the medicines.

Description

Technical Field

[0001] The utility model relates to the technical field of drug detection, in particular to a pretreatment device for drug inspection. Background Art

[0002] The purpose of drug testing is to prevent substandard drugs from entering the market and ensure drug safety. Drug testing covers a wide range of inspection items, including drug quality inspection, drug ingredient inspection, drug heavy metal inspection, drug adverse reaction inspection, drug sealing inspection, biopharmaceutical inspection, drug appearance inspection, drug routine inspection, drug physical and chemical inspection, drug safety inspection, and drug defect inspection.

[0003] When testing solid medicines, they need to be dissolved. In order to improve the dissolution effect, the medicines need to be crushed so as to compare the drug ingredients and test their properties. The patent with application number 202021200676.2 provides a food and drug inspection and dissolution device, including a workbench, a concave table is provided in the middle of the upper surface of the workbench, a beaker is built into the concave table, a rotating rod is built into the beaker, a medicine discharging rod is fixedly provided at the bottom end of the rotating rod, and both the rotating rod and the medicine discharging rod are hollow structures, and the outer wall of the medicine discharging rod is provided with several groups of evenly arranged through holes, and the rotating rod is fixedly provided with a cover body near the upper side of the beaker. This device crushes the tablets by squeezing the pressure rod through the setting of the pressure rod and the medicine discharging rod, and the broken tablets fall into the beaker through the through hole of the medicine discharging rod. Although the above-mentioned device can crush the medicine to improve the dissolution effect to a certain extent, the crushing effect and dissolution efficiency of the medicine need to be further improved. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in view of the deficiencies in the existing technology, a pretreatment device for drug inspection is provided, which can effectively grind and crush the drugs and control the dissolution temperature, thereby greatly improving the crushing and grinding effect and dissolution efficiency of the drugs.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] A pretreatment device for drug testing, comprising a drug dissolving tank, a filtering tank and a drug dissolving liquid collecting tank connected to each other; the drug dissolving tank is also connected to a solvent storage tank;

[0007] A stirring device is provided in the drug dissolution tank, and the stirring device includes a stirring shaft rotatably arranged in the drug dissolution tank and a stirring motor connected to the stirring shaft, and a plurality of crushing teeth are provided on the stirring shaft. The drug dissolution tank is provided with a grinding cylinder sleeved on the outside of the stirring device, and a plurality of filter holes are provided on the side wall of the grinding cylinder. A plurality of first grinding teeth are also provided on the side wall of the grinding cylinder, and the first grinding teeth are staggered with the crushing teeth; an electric heating plate is provided in the solvent storage tank.

[0008] Preferably, the drug dissolving tank is provided with a feeding port connected to the grinding cylinder, and a sealing cover is provided at the feeding port.

[0009] Preferably, an electric valve is provided on the connecting pipe between the solvent storage tank and the drug dissolution tank, a liquid level sensor is provided in the solvent storage tank, and the liquid level sensor is interlocked with the electric valve.

[0010] Preferably, a grinding plate is provided at the lower end of the stirring shaft, and a plurality of second grinding teeth are provided at the bottom of the grinding plate to abut against the bottom of the drug dissolution tank.

[0011] Preferably, the bottom of the grinding cylinder and the bottom of the cavity formed by the medicine dissolving tank and the grinding cylinder are both provided with discharge ports, and the discharge ports are communicated with the filter tank.

[0012] Preferably, a driving gear is sleeved on the output shaft of the motor, and a plurality of driven gears meshing with the driving gear are circumferentially provided on the top of the drug dissolution tank. The driven gear is also connected to a stirring rod, and the stirring rod is arranged in the cavity formed by the drug dissolution tank and the grinding cylinder.

[0013] Preferably, a filter screen is provided in the filter tank.

[0014] Preferably, a pushing mechanism is provided in the filter tank, and the pushing mechanism includes a telescopic rod provided in the filter tank and a cylinder connected to the telescopic rod. A pushing plate is provided at one end of the telescopic rod, and the bottom of the pushing plate is against the filter screen.

[0015] Preferably, the cylinder is fixed by a mounting bracket provided on the side wall of the filter tank.

[0016] Preferably, a slag cleaning port is provided on the side wall of the filter tank at the filter screen, a sealing plug is provided at the slag cleaning port, and a knob is provided at the end of the sealing plug.

[0017] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] The utility model provides a pretreatment device for drug inspection, comprising a connected drug dissolution tank, a filtering tank and a drug dissolution liquid collection tank; the drug dissolution tank is also connected to a solvent storage tank; the device can not only crush and grind the drug and then dissolve it with a solvent, but also filter the drug dissolution liquid to filter out undissolved drug particles.

[0019] The drug dissolution tank of this device is equipped with a stirring device and a grinding cylinder. The two work together to fully grind the drug entering the grinding cylinder. Part of the drug powder pulverized during the grinding process enters the cavity formed by the grinding cylinder and the drug dissolution tank through the filter holes in the grinding cylinder. This arrangement improves the contact efficiency between the drug and the crushing teeth and the first grinding teeth, thereby improving the crushing efficiency and the drug dissolution efficiency. In addition, this device also has an electric heating plate installed in the solvent storage tank to heat the solvent, thereby controlling the dissolution temperature and ensuring that the drug is fully dissolved.

[0020] An electric valve is provided on the connecting pipe between the solvent storage tank and the drug dissolving tank of this device, and a liquid level sensor is provided in the solvent storage tank. The liquid level sensor and the electric valve are interlocked. The above setting monitors the liquid level in the solvent storage tank, thereby controlling the solvent added to the drug dissolving tank, and effectively controlling the amount of solvent and drug used.

[0021] A grinding plate is provided at the lower end of the stirring shaft of the device, and a plurality of second grinding teeth are provided at the bottom of the grinding plate, which abut against the bottom of the medicine dissolving tank, thereby further improving the crushing and grinding efficiency of the medicine.

[0022] The device's motor output shaft is fitted with a driving gear. Multiple driven gears are positioned around the top of the drug dissolving tank, meshing with the driving gear. These driven gears are also connected to a stirring rod, which is located within the cavity formed by the drug dissolving tank and the grinding cylinder. The combined arrangement of the stirring device and stirring rod significantly improves the mixing efficiency of the drug and solvent, thereby enhancing dissolution efficiency.

[0023] The device's filter tank is equipped with a pusher mechanism. This mechanism comprises a telescopic rod mounted within the tank and a cylinder connected to the rod. A pusher plate is located at one end of the rod, the bottom of which abuts against the filter screen. A slag removal port is located on the sidewall of the tank, adjacent to the filter screen. This port is sealed with a knob at the end of a sealing plug. This arrangement prevents undissolved drug particles from clogging the filter screen and facilitates removal of undissolved drug particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model;

[0026] In the figure, 1. Drug dissolution tank; 2. Filter tank; 3. Drug dissolution liquid collection tank; 4. Solvent storage tank; 5. Stirring shaft; 6. Stirring motor; 7. Crushing teeth; 8. Grinding cylinder; 9. Filter hole; 10. First grinding teeth; 11. Discharge port; 12. Electric heating plate; 13. Filter screen; 14. Sealing cover; 15. Electric valve; 16. Liquid level sensor; 17. Grinding plate; 18. Second grinding teeth; 19. Driving gear; 20. Driven gear; 21. Stirring rod; 22. Telescopic rod; 23. Cylinder; 24. Push plate; 25. Mounting frame; 26. Sealing plug; 27. Knob. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] like Figure 1 As shown, a pretreatment device for drug inspection includes a drug dissolving tank 1, a filtering tank 2 and a drug dissolving liquid collecting tank 3 connected to each other; the drug dissolving tank 1 is also connected to a solvent storage tank 4;

[0030] A stirring device is provided in the drug dissolution tank 1, and the stirring device includes a stirring shaft 5 rotatably arranged in the drug dissolution tank 1 and a stirring motor 6 connected to the stirring shaft 5, and a plurality of crushing teeth 7 are provided on the stirring shaft 5. The drug dissolution tank 1 is provided with a grinding cylinder 8 on the outside of the stirring device, and a plurality of filter holes 9 are provided on the side wall of the grinding cylinder 8. A plurality of first grinding teeth 10 are also provided on the side wall of the grinding cylinder 8, and the first grinding teeth 10 are staggered with the crushing teeth 7; a discharge port 11 is provided at the bottom of the grinding cylinder 8 and the bottom of the cavity formed by the drug dissolution tank 1 and the grinding cylinder 8, and the discharge port 11 is connected to the filter tank 2; an electric heating plate 12 is provided in the solvent storage tank 4; and a filter screen 13 is provided in the filter tank 2.

[0031] Due to the adoption of the above technical solution, when dissolving the medicine, the solid medicine is added to the grinding cylinder 8, a certain amount of solvent is added to the medicine dissolution tank 1 through the solvent storage tank 4, the stirring motor 6 is started, and the stirring motor 6 drives the stirring shaft 5 and the crushing teeth 7 to rotate. The crushing teeth 7, the first grinding teeth 10 and the grinding cylinder 8 cooperate to fully grind the medicine. A part of the small particles of medicine produced during the grinding process enters the cavity formed by the medicine dissolution tank 1 and the grinding cylinder 8 through the filter holes 9 on the grinding cylinder 8, a part of it remains in the grinding cylinder 8, and the large particles of medicine continue to be ground in the grinding cylinder 8, which greatly improves the grinding efficiency and dissolution efficiency of the medicine.

[0032] In this embodiment, the medicine dissolving tank 1 is provided with a feeding port (not shown in the figure) connected to the grinding cylinder 8, and a sealing cover 14 is provided at the feeding port.

[0033] In this embodiment, an electric valve 15 is provided on the connecting pipe between the solvent storage tank 4 and the drug dissolving tank 1 , and a liquid level sensor 16 is provided in the solvent storage tank 4 . The liquid level sensor 16 is interlocked with the electric valve 15 .

[0034] In this embodiment, a grinding plate 17 is provided at the lower end of the stirring shaft 5 , and a plurality of second grinding teeth 18 are provided at the bottom of the grinding plate 17 to abut against the bottom of the medicine dissolving tank 1 .

[0035] In this embodiment, a driving gear 19 is also sleeved on the output shaft of the motor, and a plurality of driven gears 20 meshing with the driving gear 19 are provided on the top circumference of the drug dissolution tank 1. The driven gear 20 is also connected to a stirring rod 21, and the stirring rod 21 is arranged in the cavity formed by the drug dissolution tank 1 and the grinding cylinder 8.

[0036] In this embodiment, the filter tank 2 is provided with a pushing mechanism. The pushing mechanism includes a telescopic rod 22 disposed within the filter tank 2 and a cylinder 23 connected to the telescopic rod 22. A pushing plate 24 is provided at one end of the telescopic rod 22, the bottom of which abuts against the filter screen. The cylinder 23 is secured by a mounting bracket 25 disposed on the side wall of the filter tank 2.

[0037] In this embodiment, a slag cleaning port (not shown in the figure) is provided on the side wall of the filter tank 2 at the filter screen, and a sealing plug 26 is provided at the slag cleaning port, and a knob 27 is provided at the end of the sealing plug 26.

[0038] The working principle of this device is as follows:

[0039] A certain amount of solid medicine is added to the grinding cylinder 8 through the feeding port, and a certain amount of solvent at a certain temperature is added to the medicine dissolution tank 1 through the solvent storage tank 4. The stirring motor 6 is started, and the stirring motor 6 drives the stirring shaft 5, the crushing teeth 7 and the stirring rod 21 to rotate. The crushing teeth 7, the first grinding teeth 10, the second grinding teeth 18 and the grinding cylinder 8 cooperate with each other to fully grind the medicine. Grinding and stirring and dissolving are carried out simultaneously, which improves the processing efficiency of the medicine. The dissolved medicine solution is filtered through the filter tank 2 to remove undissolved large particles of medicine to obtain a uniform medicine solution; after the filtration is completed, the sealing plug 26 is pulled out by the knob 27, and an external cleaning tool, such as a soft brush or a scraper, is manually used to clean out the undissolved medicine particles accumulated on the filter screen 13 through the residue cleaning port.

[0040] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pretreatment device for drug testing, characterized in that: It includes a drug dissolving tank, a filtering tank and a drug dissolving liquid collecting tank which are connected; the drug dissolving tank is also connected to a solvent storage tank; A stirring device is provided in the drug dissolution tank, and the stirring device includes a stirring shaft rotatably arranged in the drug dissolution tank and a stirring motor connected to the stirring shaft, and a plurality of crushing teeth are provided on the stirring shaft. The drug dissolution tank is provided with a grinding cylinder sleeved on the outside of the stirring device, and a plurality of filter holes are provided on the side wall of the grinding cylinder. A plurality of first grinding teeth are also provided on the side wall of the grinding cylinder, and the first grinding teeth are staggered with the crushing teeth; an electric heating plate is provided in the solvent storage tank.

2. A drug testing pretreatment device according to claim 1, characterized in that: The medicine dissolving tank is provided with a feeding port which is communicated with the grinding cylinder, and a sealing cover is provided at the feeding port.

3. A drug testing pretreatment device according to claim 1, characterized in that: An electric valve is provided on the connecting pipe between the solvent storage tank and the drug dissolution tank, and a liquid level sensor is provided in the solvent storage tank. The liquid level sensor is interlocked with the electric valve.

4. A drug testing pretreatment device according to claim 1, characterized in that: A grinding plate is provided at the lower end of the stirring shaft, and a plurality of second grinding teeth are provided at the bottom of the grinding plate, which abut against the bottom of the medicine dissolving tank.

5. A drug testing pretreatment device according to claim 1, characterized in that: The bottom of the grinding cylinder and the bottom of the cavity formed by the medicine dissolving tank and the grinding cylinder are both provided with discharge ports, and the discharge ports are communicated with the filter tank.

6. A drug testing pretreatment device according to claim 1, characterized in that: A driving gear is also sleeved on the output shaft of the motor, and a plurality of driven gears meshing with the driving gear are circumferentially provided on the top of the medicine dissolving tank. The driven gear is also connected to a stirring rod, and the stirring rod is arranged in the cavity formed by the medicine dissolving tank and the grinding cylinder.

7. A drug testing pretreatment device according to claim 1, characterized in that: A filter screen is provided in the filter tank.

8. A drug testing pretreatment device according to claim 7, characterized in that: A pushing mechanism is provided in the filter tank, and the pushing mechanism includes a telescopic rod provided in the filter tank and a cylinder connected to the telescopic rod. A pushing plate is provided at one end of the telescopic rod, and the bottom of the pushing plate abuts against the filter screen.

9. A drug testing pretreatment device according to claim 8, characterized in that: The cylinder is fixed by a mounting bracket arranged on the side wall of the filter tank.

10. A drug testing pretreatment device according to claim 7, characterized in that: A slag cleaning port is provided on the side wall of the filter tank at the filter screen, a sealing plug is provided at the slag cleaning port, and a knob is provided at the end of the sealing plug.

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