Laboratory medicine crushing and mixing device

Abstract

The utility model discloses a laboratory medicine crushing and mixing device, which comprises a mixing cylinder body (1) and a driving motor (7), the top of the mixing cylinder body (1) is provided with a crushing device (2) and a liquid storage tank (3), the liquid storage tank (3) is internally and fixedly provided with a mounting pipe (4) which is coaxially arranged, the mounting pipe (4) is internally and rotatably provided with a first rotating shaft (5), the mixing cylinder body (1) is internally provided with a stirring assembly, and the stirring assembly is internally provided with a second rotating shaft (6). And the lower end of the first rotating shaft (5) is connected with the upper end of the stirring assembly through a toothed belt (6). The medicine crushing and stirring device can quickly crush medicines, quickly and uniformly stir the medicines, and occupies a small space.

Description

Technical Field

[0001] The utility model relates to a crushing and mixing device, in particular to a laboratory medicine crushing and mixing device. Background Art

[0002] In the prior art, when testing drugs in the laboratory, it is necessary to use a drug crusher to first crush the drugs into powder, and then mix the drugs with liquids in the required proportions, and then manually stir them evenly so that the drug powder and liquid are fully mixed to form a solution for testing. At present, a crusher is required to crush drugs, and a flask and a stirring rod are required for mixing. Of course, an electric stirrer can also be used. There are several problems with following the above steps: 1. The crusher, flask and electric stirrer need to occupy a large space; 2. The crushed drug powder is not convenient to take out, and it is not convenient to pour it into the flask. Some of the drug powder will be scattered outside the flask, affecting the accuracy of the test; 3. The stirring efficiency is low when using a stirring rod for stirring. Although the stirring efficiency is improved by using an electric stirrer for stirring, it requires manual hand-held operation, and the staff cannot do other things. Utility Model Content

[0003] The utility model aims to provide a laboratory medicine crushing and mixing device to solve the technical problems in the prior art. The utility model can quickly crush medicines, quickly mix them evenly, and occupies less space.

[0004] The utility model provides a laboratory medicine crushing and mixing device, comprising a mixing cylinder and a driving motor. A crushing device and a liquid storage tank are installed on the top of the mixing cylinder. A coaxially arranged mounting tube is fixed in the liquid storage tank. A first rotating shaft is rotatably mounted in the mounting tube. A stirring assembly is arranged in the mixing cylinder, and the lower end of the first rotating shaft is connected to the upper end of the stirring assembly through a toothed belt.

[0005] In the aforementioned laboratory medicine crushing and mixing device, preferably, a top plate is rotatably mounted on the top of the mixing cylinder, and a baffle is fixedly provided on the inner wall of the mixing cylinder, and the top surface of the baffle is in contact with the bottom surface of the top plate.

[0006] In the aforementioned laboratory medicine crushing and mixing device, preferably, the bottom of the mixing cylinder is provided with supporting legs and a first liquid outlet pipe, and the first liquid outlet pipe is provided with a manual valve.

[0007] In the aforementioned laboratory drug crushing and mixing device, preferably, the crushing device includes a crushing cylinder, a second rotating shaft, a crushing blade and a filter screen, the crushing cylinder is fixedly mounted on the top plate, a filter screen is fixedly mounted on the bottom of the crushing cylinder, two rotating shaft limiting rings are arranged in the crushing cylinder, the second rotating shaft is rotatably connected to the two rotating shaft limiting rings, the lower end of the second rotating shaft is fixedly mounted with the two crushing blades, and a first hexagonal connecting hole is opened at the top end of the second rotating shaft.

[0008] In the aforementioned laboratory drug crushing and mixing device, preferably, a through hole is opened on the top plate, the through hole is located directly below the filter screen, the diameter of the through hole is equal to the diameter of the filter screen, and the diameter of the baffle is larger than the diameter of the through hole.

[0009] In the aforementioned laboratory drug crushing and mixing device, preferably, a limit plate is fixedly provided on the upper part of the liquid storage tank, the upper end of the mounting tube is fixedly connected to the limit plate, the lower end of the mounting tube is fixedly connected to the bottom plate of the liquid storage tank, a liquid inlet pipe and a cover are provided on the limit plate, an air inlet hole is provided on the cover, a liquid outlet pipe is provided at the bottom of the liquid storage tank, the liquid outlet pipe passes through the top plate and extends into the mixing cylinder, and an electric valve is provided on the liquid outlet pipe.

[0010] In the aforementioned laboratory drug crushing and mixing device, preferably, the first rotating shaft is rotatably mounted in the mounting tube through a plurality of bearings, a second hexagonal connecting hole is opened at the top end of the first rotating shaft, and a first pulley is fixedly provided at the lower end of the first rotating shaft.

[0011] In the aforementioned laboratory drug crushing and mixing device, preferably, the stirring assembly includes a third rotating shaft, a spiral blade and a second pulley. A first shaft seat is provided at the center position of the bottom plate in the mixing cylinder, and the lower end of the third rotating shaft is rotatably mounted in the first shaft seat through a bearing. The spiral blade is fixed on the third rotating shaft, and a third hexagonal connecting hole is provided at the top end of the third rotating shaft. A second shaft seat is fixed at the bottom center position of the top plate, and a connecting shaft is rotatably mounted on the second shaft seat. The second pulley is fixed on the connecting shaft, and the second pulley is connected to the first pulley through the toothed belt. A first hexagonal connecting rod is fixed at the lower end of the connecting shaft, and the first hexagonal connecting rod is plug-connected to the third hexagonal connecting hole.

[0012] In the aforementioned laboratory drug pulverizing and mixing device, preferably, a threaded connection portion is formed on the drive motor, a second hexagonal connecting rod is fixedly provided on the output shaft of the drive motor, and a control switch is provided on the top of the drive motor.

[0013] Compared with the prior art, the utility model includes a mixing cylinder and a driving motor, a crushing device and a liquid storage tank are installed on the top of the mixing cylinder, a coaxially arranged mounting tube is fixed in the liquid storage tank, a first rotating shaft is rotatably mounted in the mounting tube, a stirring assembly is arranged in the mixing cylinder, and the lower end of the first rotating shaft is connected to the upper end of the stirring assembly through a toothed belt. The utility model realizes the crushing and stirring functions through a driving motor, effectively reducing the purchase cost of the equipment, and the utility model also has the functions of drug crushing, liquid storage and mixing, which are combined together, not only fully functional, but also occupying a small space, and can free the hands of the staff, improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an axonometric drawing of the utility model;

[0015] Figure 2 is the axonometric view of the drive motor;

[0016] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the liquid storage tank and the stirring assembly;

[0018] Figure 5 It is an axonometric view of the mixing cylinder;

[0019] Figure 6 It is a schematic diagram of the internal structure of the crushing device.

[0020] Explanation of the reference numerals: mixing cylinder 1, crushing device 2, liquid storage tank 3, mounting tube 4, first rotating shaft 5, toothed belt 6, driving motor 7, top plate 8, supporting leg 9, first liquid outlet pipe 10, manual valve 11, crushing cylinder 12, second rotating shaft 13, crushing blade 14, filter screen 16, rotating shaft limiting ring 17, first hexagonal connecting hole 18, through hole 19, limiting plate 20, cover 21, cover 21, liquid outlet pipe 22, electric valve 23, second hexagonal connecting hole 24, first pulley 25, third rotating shaft 26, spiral blade 27, second pulley 28, first shaft seat 29, third hexagonal connecting hole 30, second shaft seat 31, connecting shaft 32, first hexagonal connecting rod 33, threaded connection part 34, second hexagonal connecting rod 35, control switch 36, baffle 37, alignment mark 38, dust cover 39. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0022] Embodiments of the present utility model: Figure 1-Figure 6 As shown, a laboratory medicine crushing and mixing device includes a mixing cylinder 1 and a driving motor 7. A crushing device 2 and a liquid storage tank 3 are installed on the top of the mixing cylinder 1. A coaxially arranged mounting tube 4 is fixed in the liquid storage tank 3. A first rotating shaft 5 is rotatably installed in the mounting tube 4. A stirring assembly is arranged in the mixing cylinder 1. The lower end of the first rotating shaft 5 is connected to the upper end of the stirring assembly through a toothed belt 6.

[0023] The driving motor 7 is used to provide power for the rotation of the crushing device 2 and the stirring assembly. When the driving motor 7 is installed on the crushing device 2, it is used to drive the crushing device 2 to work. When the driving motor 7 is installed on the first rotating shaft 5, it is used to drive the stirring assembly to work. In this embodiment, a dust cover 39 is also provided. When the driving motor 7 is installed on the crushing device 2, the dust cover 39 covers the liquid storage tank 3 to prevent dust. When the driving motor 7 is installed on the liquid storage tank 3 and connected to the first rotating shaft 5, the dust cover 39 covers the crushing device 2 to prevent dust.

[0024] In a specific embodiment, the mixing cylinder 1 is a cylindrical cylinder, a top plate 8 is rotatably mounted on the top of the mixing cylinder 1, the top plate 8 is coaxially arranged with the mixing cylinder 1, a baffle 37 is fixedly arranged on the inner wall of the mixing cylinder 1, and the top surface of the baffle 37 contacts the bottom surface of the top plate 8. A support leg 9 and a first liquid outlet pipe 10 are arranged at the bottom of the mixing cylinder 1, and a manual valve 11 is arranged on the first liquid outlet pipe 10.

[0025] The first liquid outlet pipe 10 is used to release the mixed solution, and the manual valve 11 is provided to facilitate the staff to control the amount of solution released. The mixing cylinder 1 and the liquid storage tank 3 are made of transparent materials such as glass and plastic. In this embodiment, glass is preferred. The outer wall of the liquid storage tank 3 is marked with scale lines (not shown in the figure). The scale lines can accurately control the amount of solution put into the mixing cylinder 1 to ensure the detection accuracy.

[0026] Furthermore, the crushing device 2 includes a crushing cylinder 12, a second rotating shaft 13, a crushing blade 14 and a filter 16. The crushing cylinder 12 is fixed on the top plate 8. The filter 16 is fixed at the bottom of the crushing cylinder 12. Two rotating shaft limit rings 17 are arranged in the crushing cylinder 12. The second rotating shaft 13 is rotatably connected to the two rotating shaft limit rings 17. Two crushing blades 14 are fixedly installed at the lower end of the second rotating shaft 13. A first hexagonal connecting hole 18 is opened at the top of the second rotating shaft 13.

[0027] Specifically, the grinding cylinder 12 is made of transparent plastic material, and the grinding cylinder 12 is also a cylindrical cylinder. The outer diameter of the grinding cylinder 12 is smaller than half of the outer diameter of the mixing cylinder 1. The two rotating shaft limit rings 17 are fixedly connected to the inner wall of the grinding cylinder 12 through four connecting rods respectively. The two rotating shaft limit rings 17 are coaxial with the grinding cylinder 12. Ball bearings (not shown in the figure) are fixedly installed in the two rotating shaft limit rings 17. The outer wall of the second rotating shaft 13 is interference fit with the inner ring of the ball bearing. The second rotating shaft 13 can only make rotational motion, and cannot produce axial displacement.

[0028] A threaded connection portion 34 is formed on the drive motor 7, a second hexagonal connection rod 35 is fixedly disposed on the output shaft of the drive motor 7, and a control switch 36 is disposed on the top of the drive motor 7. In this embodiment, there are two control switches 36 on the top of the drive motor 7, one is a height switch, and the other is a low speed switch, which respectively control the high speed rotation and low speed rotation of the drive motor 7.

[0029] The inner wall of the upper end of the grinding cylinder 12 has threads, and the threaded connection part 34 of the drive motor 7 can be threadedly connected to the upper end of the grinding cylinder 12. During installation, first insert the second hexagonal connecting rod 35 into the first hexagonal connecting hole 18, and then rotate the drive motor 7 to tighten it.

[0030] Furthermore, the top plate 8 is a circular plate, and a through hole 19 is formed on the top plate 8 . The through hole 19 is located directly below the filter screen 16 . The diameter of the through hole 19 is equal to the diameter of the filter screen 16 , and the diameter of the baffle 37 is larger than the diameter of the through hole 19 .

[0031] The top plate 8 can rotate on the top of the mixing cylinder 1. When the through hole 19 on the top plate 8 is located directly above the baffle 37, the crushed drug powder cannot pass through the filter screen 16 and fall into the mixing cylinder 1. When the drug powder needs to be transferred into the mixing cylinder 1, the top plate 8 is rotated to stagger the position of the through hole 19 and the position of the baffle 37.

[0032] In order to ensure the accuracy of the alignment between the through hole 19 and the baffle 37, it is preferred to provide an alignment mark 38 on the top of the mixing cylinder 1 and the outer wall of the crushing cylinder 12. When the two alignment marks 38 are aligned, it means that the through hole 19 is aligned with the baffle 37, and the drug powder cannot fall into the mixing cylinder 1.

[0033] Furthermore, a limit plate 20 is fixedly provided on the upper part of the liquid storage tank 3, the upper end of the mounting tube 4 is fixedly connected to the limit plate 20, and the lower end of the mounting tube 4 is fixedly connected to the bottom plate of the liquid storage tank 3. A liquid inlet pipe and a cover 21 are provided on the limit plate 20, and an air inlet hole (not shown in the figure) is opened on the cover 21. A liquid outlet pipe 22 is provided at the bottom of the liquid storage tank 3, and the liquid outlet pipe 22 passes through the top plate 8 and extends into the mixing cylinder 1, and an electric valve 23 is provided on the liquid outlet pipe 22.

[0034] In this embodiment, the outer diameter of the liquid storage tank 3 is equal to the outer diameter of the crushing cylinder 12, the limit plate 20 is left at a distance from the top of the liquid storage tank 3, and the inner wall of the upper end of the liquid storage tank 3 is also formed with threads, and the threaded connection part 34 of the drive motor 7 can be threadedly connected with the upper end of the liquid storage tank 3. It should be noted that the upper end of the mounting tube 4 passes through the limit plate 20, and the lower end of the mounting tube 4 passes through the bottom plate of the liquid storage tank 3. A plurality of ball bearings (not shown in the figure) are arranged in the mounting tube 4, and the first rotating shaft 5 is interference fit with the inner ring of the ball bearing. The top of the first rotating shaft 5 is provided with a second hexagonal connection hole 24, and the lower end of the first rotating shaft 5 is fixed with a first pulley 25. The first pulley 25 can only rotate, but cannot generate axial displacement. The second hexagonal connecting rod 35 on the drive motor 7 can be plug-connected with the second hexagonal connection hole 24, and the size of the second hexagonal connection hole 24 is exactly the same as the size of the first hexagonal connection hole 18. A switch (not shown in the figure) for controlling the electric valve 23 is provided on the top plate 8 , and the electric valve 23 can be controlled to be opened or closed by the switch.

[0035] Furthermore, the stirring assembly includes a third rotating shaft 26, a spiral blade 27 and a second pulley 28. A first shaft seat 29 is arranged at the center position of the bottom plate in the mixing cylinder 1. The lower end of the third rotating shaft 26 is rotatably mounted in the first shaft seat 29 through a bearing. The spiral blade 27 is fixed on the third rotating shaft 26. A third hexagonal connecting hole 30 is opened at the top of the third rotating shaft 26. A second shaft seat 31 is fixed at the bottom center position of the top plate 8. A connecting shaft 32 is rotatably mounted on the second shaft seat 31. The second pulley 28 is fixed on the connecting shaft 32. The second pulley 28 is connected to the first pulley 25 through a toothed belt 6. A first hexagonal connecting rod 33 is fixed at the lower end of the connecting shaft 32. The first hexagonal connecting rod 33 is plug-connected to the third hexagonal connecting hole 30.

[0036] The working principle of the utility model is as follows: when testing the medicine, the medicine is weighed first, and then the weighed medicine is placed in the crushing cylinder 12, and then the second hexagonal connecting rod 35 on the driving motor 7 is inserted into the first hexagonal connecting hole 18 on the second rotating shaft 13, and then the driving motor 7 is turned first, and the driving motor 7 and the crushing cylinder 12 are screwed together, and then the two alignment marks 38 are checked to see if they are aligned. After confirming the alignment, the driving motor 7 is rotated at a high speed by the control switch 36, and the driving motor 7 drives the second rotating shaft 13 to rotate through the second hexagonal connecting rod 35, and the crushing blade 14 at the bottom of the second rotating shaft 13 crushes the medicine into powder. After the preset crushing time, the staff turns off the driving motor 7 and rotates the top plate 8 so that the through hole 19 on the top plate 8 is staggered with the baffle 37, so that the medicine powder passes through the filter screen 16 and the through hole 19 and falls into the mixing cylinder 1, and then the top plate 8 is rotated in the opposite direction so that the through hole 19 returns to the top of the baffle 37 to prevent the liquid from entering the crushing cylinder 12 during stirring, which will cause the filter screen to be blocked. Then control the electric valve 23 to open, judge whether the amount of solution entering the mixing cylinder 1 meets the standard according to the scale on the outer wall of the liquid storage tank 3, and close the electric valve 23 after adding enough solution. Remove the drive motor 7 from the crushing cylinder 12, remove the dust cover 39 covering the liquid storage tank 3 and cover it on the crushing cylinder 12, install the drive motor 7 on the top of the liquid storage tank 3, open the low speed gear of the drive motor 7, and make the drive motor 7 rotate at a low speed. The second hexagonal connecting rod 35 drives the first rotating shaft 5 to rotate, and the first pulley 25 at the bottom of the first rotating shaft 5 drives the second pulley 28 to rotate through the toothed belt 6. The second pulley 28 drives the connecting shaft 32 and the first hexagonal connecting rod 33 to rotate, and the first hexagonal connecting rod 33 drives the third rotating shaft 26 to rotate. The third rotating shaft 26 mixes the drug powder and the liquid through the spiral blade 27. During the mixing process, the staff can do other things without guarding. After the required time is reached, come and turn off the drive motor 7. The mixed solution can be discharged through the first liquid outlet pipe 10 at the bottom of the mixing cylinder 1.

[0037] The above describes in detail the structure, features and effects of the utility model based on the embodiments shown in the drawings. The above is only a preferred embodiment of the utility model, but the utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the utility model, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and the drawings, should be within the protection scope of the utility model.

Claims

1. A laboratory medicine crushing and mixing device, comprising a mixing cylinder (1), characterized in that: The mixing cylinder (1) further comprises a driving motor (7). A pulverizing device (2) and a liquid storage tank (3) are mounted on the top of the mixing cylinder (1). A coaxially arranged mounting tube (4) is fixedly disposed in the liquid storage tank (3). A first rotating shaft (5) is rotatably mounted in the mounting tube (4). A stirring assembly is disposed in the mixing cylinder (1). The lower end of the first rotating shaft (5) is connected to the upper end of the stirring assembly via a toothed belt (6).

2. The laboratory medicine crushing and mixing device according to claim 1 is characterized in that: A top plate (8) is rotatably mounted on the top of the mixing cylinder (1), and a baffle (37) is fixedly provided on the inner wall of the mixing cylinder (1), the top surface of the baffle (37) being in contact with the bottom surface of the top plate (8).

3. The laboratory medicine crushing and mixing device according to claim 2 is characterized in that: The bottom of the mixing cylinder (1) is provided with supporting legs (9) and a first liquid outlet pipe (10), and the first liquid outlet pipe (10) is provided with a manual valve (11).

4. The laboratory medicine crushing and mixing device according to claim 2 is characterized in that: The pulverizing device (2) comprises a pulverizing cylinder (12), a second rotating shaft (13), a pulverizing blade (14) and a filter screen (16); the pulverizing cylinder (12) is fixedly mounted on the top plate (8); a filter screen (16) is fixedly mounted at the bottom of the pulverizing cylinder (12); two rotating shaft limiting rings (17) are arranged in the pulverizing cylinder (12); the second rotating shaft (13) is rotatably connected to the two rotating shaft limiting rings (17); the lower end of the second rotating shaft (13) is fixedly mounted with the two pulverizing blades (14); and a first hexagonal connecting hole (18) is provided at the top end of the second rotating shaft (13).

5. The laboratory medicine crushing and mixing device according to claim 4 is characterized in that: A through hole (19) is provided on the top plate (8), the through hole (19) is located directly below the filter screen (16), the diameter of the through hole (19) is equal to the diameter of the filter screen (16), and the diameter of the baffle (37) is greater than the diameter of the through hole (19).

6. The laboratory medicine crushing and mixing device according to claim 2 is characterized in that: A limit plate (20) is fixedly provided at the upper part of the liquid storage tank (3); the upper end of the mounting tube (4) is fixedly connected to the limit plate (20); the lower end of the mounting tube (4) is fixedly connected to the bottom plate of the liquid storage tank (3); a liquid inlet pipe and a cover (21) are provided on the limit plate (20); an air inlet hole is provided on the cover (21); a liquid outlet pipe (22) is provided at the bottom of the liquid storage tank (3); the liquid outlet pipe (22) passes through the top plate (8) and extends into the mixing cylinder (1); an electric valve (23) is provided on the liquid outlet pipe (22).

7. The laboratory medicine crushing and mixing device according to claim 6, characterized in that: The first rotating shaft (5) is rotatably mounted in the mounting tube (4) via a plurality of bearings; a second hexagonal connecting hole (24) is provided at the top end of the first rotating shaft (5); and a first pulley (25) is fixedly mounted at the lower end of the first rotating shaft (5).

8. The laboratory medicine crushing and mixing device according to claim 7, characterized in that: The stirring assembly comprises a third rotating shaft (26), a spiral blade (27) and a second pulley (28); a first shaft seat (29) is arranged at the center of the bottom plate in the mixing cylinder (1); the lower end of the third rotating shaft (26) is rotatably mounted in the first shaft seat (29) via a bearing; the spiral blade (27) is fixedly mounted on the third rotating shaft (26); a third hexagonal connecting hole (30) is provided at the top end of the third rotating shaft (26); a second shaft seat (31) is fixedly mounted at the center of the bottom of the top plate (8); a connecting shaft (32) is rotatably mounted on the second shaft seat (31); the second pulley (28) is fixedly mounted on the connecting shaft (32); the second pulley (28) is connected to the first pulley (25) via the toothed belt (6); a first hexagonal connecting rod (33) is fixedly mounted at the lower end of the connecting shaft (32); the first hexagonal connecting rod (33) is plug-connected to the third hexagonal connecting hole (30).

9. The laboratory medicine crushing and mixing device according to claim 1, characterized in that: A threaded connection portion (34) is formed on the drive motor (7), a second hexagonal connection rod (35) is fixedly arranged on the output shaft of the drive motor (7), and a control switch (36) is arranged on the top of the drive motor (7).

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