Biological medicine extraction device

Abstract

The invention belongs to the technical field of biological extraction, particularly relates to a biological medicine extraction device, and aims to solve the problems that the sampling amount is inconvenient to control in the existing sampling process, and the sampling amount is too much or too little easily; in order to solve the problems that in the prior art, after extraction, solid and liquid need to be separated independently, and the workload is increased, according to the scheme, the device comprises a workbench, an extraction cylinder is fixedly arranged at the top of the workbench in a penetrating mode, a filter cylinder is fixedly arranged at the top of the extraction cylinder in a penetrating mode, and a bottom cover corresponding to the filter cylinder is arranged at the bottom of the extraction cylinder in a threaded mode; the bottom seal is used for sealing the bottom of the filter cartridge; through integrated design, automation of the whole process from automatic feeding, mashing, stirring and extracting of materials to sampling of liquid at different depths is achieved, the extraction efficiency and accuracy are remarkably improved, particularly, due to the design of the sampling mechanism, the liquid at different depths can be flexibly sampled, the requirement for accurate control in biological medicine extraction is met, and the application prospect is wide. And liquid can be driven to flow, so that the extraction effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of biological extraction, and in particular to a biological medicine extraction device. Background Art

[0002] The extraction of Chinese herbal medicine is the process of extracting its active ingredients from Chinese herbal medicine to ensure the quality and therapeutic effect of Chinese herbal medicine preparations. Traditional extraction methods include water decoction, maceration, percolation, modified gelatin method, reflux method, solvent extraction, steam distillation and sublimation, among which water decoction is the most commonly used method.

[0003] After searching, the application with the publication number CN110917651B discloses a biopharmaceutical extraction device, which has the following disadvantages during use: 1. It is not easy to control the amount of sampling during the sampling process, which may lead to too much or too little sampling; 2. After extraction, solid and liquid need to be separated separately, which increases the workload. Summary of the invention

[0004] 3. The purpose of the present invention is to solve the shortcomings of the prior art that it is difficult to control the sampling amount during the sampling process, which is easy to be too much or too little; after extraction, the solid and liquid need to be separated separately, which increases the workload, and a biomedical extraction device is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A biomedical extraction device comprises a workbench, an extraction cylinder is fixedly provided on the top of the workbench, a filter cartridge is fixedly provided on the top of the extraction cartridge, and a bottom cover corresponding to the filter cartridge is threadedly provided on the bottom of the extraction cartridge for sealing the bottom of the filter cartridge; A rotating disk is fixedly provided on the top of the extraction cylinder, a feeding cylinder is rotatably provided in the rotating disk, a conical cylinder for guiding the material is fixedly provided in the feeding cylinder, and a feeding hole corresponding to the conical cylinder and the filter cylinder is opened on the top of the rotating disk for feeding the material; A mounting seat, the mounting seat is fixedly arranged at the bottom of the extraction cylinder, a liquid discharge pipe for discharging materials is fixedly arranged through the top of the mounting seat, the liquid discharge pipe is rotatably connected to the stirring shaft, and a plurality of first liquid discharge holes connected to the liquid discharge pipe are opened on the outer wall of the bottom end of the stirring shaft; A stirring shaft, the stirring shaft is rotatably arranged on the top of the extraction cylinder, a double-shaft motor is fixedly arranged on the top of the extraction cylinder, one of the output ends of the double-shaft motor is fixedly connected to the stirring shaft, and a plurality of stirring spoons for stirring are fixedly arranged on the outer wall of the stirring shaft; The sampling mechanism is arranged in the extraction cylinder and is used in conjunction with the stirring shaft to sample liquids at different depths.

[0006] In a possible design, the sampling mechanism includes a sleeve that passes through and rotates on the top of the extraction cylinder, a sampling tube is rotatably arranged in the sleeve, the bottom of the sampling tube is fixedly arranged on the bottom wall of the extraction cylinder, the top of the sampling tube is sealed, and an extension tube is connected to one side of the sampling tube, a first reciprocating screw is rotatably arranged on the top of the sampling tube, a lifting box is threadedly sleeved on the outer wall of the first reciprocating screw, a corresponding fourth liquid inlet hole and a second liquid discharge hole are provided on the outer wall of the lifting box, a plurality of third liquid inlet holes are provided on the outer wall of the sampling tube, a plurality of second liquid inlet holes used in conjunction with the third liquid inlet holes are provided on the outer wall of the sleeve, and the plurality of second liquid inlet holes are set in a spiral step shape for sampling liquids of different depths, a limiting member for limiting the sleeve is provided on the extraction cylinder, and the first reciprocating screw is connected to the stirring shaft through a transmission member for driving the lifting box to move up and down.

[0007] In a possible design, the limit member includes a fixing ring fixedly sleeved on the outer wall of the sleeve, a fixing block is fixedly provided on the top of the extraction cylinder, a pin is slidably provided through one side of the fixing block, a first spring is sleeved on the outer wall of the pin, and the two ends of the first spring are respectively fixedly connected to one side of the fixing block and the outer wall of the pin, and a plurality of sockets for use with the pin are opened on the outer wall of the fixing ring.

[0008] In a possible design, the number of the plug holes corresponds to the second liquid inlet holes, and is used to accurately adjust the second liquid inlet holes to correspond to the third liquid inlet holes.

[0009] In a possible design, the transmission member includes two synchronous wheels, which are respectively fixedly mounted on the outer wall of the bottom end of the stirring shaft and the first reciprocating screw, and the two synchronous wheels are transmission-connected by a same synchronous belt.

[0010] In a possible design, two groups of first liquid inlet holes are formed on the outer wall of the sleeve, and the two groups of first liquid inlet holes are used in conjunction with two upper and lower third liquid inlet holes respectively to pump liquid flow.

[0011] In a possible design, the rotating disk, the feed barrel and the top of the conical barrel are provided with a same inner screw that rotates through them. The inner thread of the inner screw is provided with a second reciprocating screw. A connecting strip is fixedly provided on the top of the second reciprocating screw. A tamping rod corresponding to the feed hole is fixedly provided on the bottom of the connecting strip for tamping the material into the filter barrel. The bottom end of the inner screw is fixedly connected to the other output end of the dual-axis motor.

[0012] In a possible design, a guide rod is fixedly provided through the top of the conical cylinder, and the connecting strip is slidably sleeved on the guide rod for guiding the connecting strip.

[0013] In one possible design, a rotating seat is fixedly provided on the inner wall of one side of the feed barrel, and a knocking block is rotatably provided inside the rotating seat and used in conjunction with a connecting strip. A torsion spring is sleeved on the rotating shaft of the knocking block, and the two ends of the torsion spring are respectively fixedly connected to one side of the rotating seat and the outer wall of the rotating shaft, so as to knock on the feed barrel to generate vibration and accelerate the movement of materials.

[0014] In a possible design, a wedge block is slidably provided on one side of the knocking block for use with a connecting strip, and two second springs are provided in the knocking block. The two ends of the second springs are respectively fixedly connected to the wedge block and the side of the knocking block close to each other to prevent the connecting strip from getting stuck with the knocking block during the descent.

[0015] Beneficial effects: In the present invention, the biomedical extraction device is driven by a dual-axis motor to rotate the stirring shaft, and the stirring spoon fully stirs the material in the extraction cylinder to ensure that the material and the extraction solvent are fully mixed, thereby improving the extraction efficiency. At the same time, a drainage hole is provided at the bottom of the stirring shaft to facilitate the discharge of the extraction liquid during the stirring process, thereby realizing continuous extraction. In the present invention, the design of the sampling mechanism of the biomedical extraction device allows sampling of liquids at different depths, and samples at multiple depths can be obtained without interrupting the extraction process, which is convenient for subsequent analysis and quality control. The first reciprocating screw is connected to the stirring shaft through a transmission member, so that sampling and stirring are performed synchronously, thereby improving sampling efficiency and accuracy. In the present invention, the biomedical extraction device realizes automatic feeding and crushing of materials through the coordinated use of the inner screw and the second reciprocating screw, reducing manual operation. At the same time, the design of the knocking block and the wedge block further accelerates the movement and crushing effect of the materials, improves the extraction efficiency, and can avoid the connection bar and the knocking block from getting stuck. In the present invention, the biomedical extraction device drives the lifting box to move up and down by the first reciprocating screw, which can not only perform sampling, but also drive the liquid in the extraction cylinder to flow when no sampling is performed, thereby improving the mixed extraction effect; In the present invention, through integrated design, the whole process automation from automatic material loading, crushing, stirring extraction to liquid sampling at different depths is realized, which significantly improves the extraction efficiency and accuracy. In particular, the design of the sampling mechanism can flexibly sample liquids at different depths, meeting the demand for precise control in biomedical extraction, and can also drive the liquid to flow, thereby improving the extraction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a biomedical extraction device proposed by the present invention; Figure 2A schematic cross-sectional view of a biomedical extraction device proposed by the present invention; Figure 3 This is a schematic diagram of the connection structure between a sampling tube and a sleeve of a biomedical extraction device proposed by the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of a sampling tube and a sleeve of a biomedical extraction device proposed by the present invention; Figure 5 This is a schematic cross-sectional view of the feed barrel of a biomedical extraction device proposed by the present invention; Figure 6 This is a schematic diagram of the knocking block structure of a biomedical extraction device proposed by the present invention.

[0017] In the figure: 1, workbench; 2, extraction cylinder; 3, rotating disk; 4, feed cylinder; 5, sampling tube; 6, extension tube; 7, double-axis motor; 8, first reciprocating screw; 9, stirring shaft; 10, stirring spoon; 11, mounting seat; 12, drainage pipe; 13, first drainage hole; 14, synchronous wheel; 15, synchronous belt; 16, filter cartridge; 18, bottom cover; 19, sleeve; 20, first liquid inlet hole; 21, second liquid inlet hole; 22, fixing block ; 23. Pin; 24. Fixed ring; 25. Socket; 26. First spring; 27. Third liquid inlet; 28. Lifting box; 29. ​​Fourth liquid inlet; 30. Second liquid discharge hole; 36. Internal screw; 37. Feed hole; 38. Second reciprocating screw; 39. Guide rod; 40. Connecting strip; 41. Ramming rod; 42. Knocking block; 43. Conical cylinder; 44. Rotating seat; 45. Wedge block; 46. Second spring; 47. Torsion spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Example 1 Reference Figure 1-Figure 6 A biomedical extraction device is used in the field of biological extraction, comprising: a workbench 1, an extraction cartridge 2 is fixedly provided on the top of the workbench 1, a filter cartridge 16 is fixedly provided on the top of the extraction cartridge 2 for filtering materials. A bottom cover 18 is threadedly provided on the bottom of the extraction cartridge 2, and the bottom cover 18 corresponds to the filter cartridge 16 and is used to seal the bottom of the filter cartridge 16.

[0020] A rotating disk 3 is fixedly provided on the top of the extraction cylinder 2, and a feed cylinder 4 is rotatably provided in the rotating disk 3. A conical cylinder 43 is fixedly provided in the feed cylinder 4, and the conical cylinder 43 is used to guide the material so that it can smoothly enter the filter cylinder 16. A feed hole 37 is opened on the top of the rotating disk 3, and the feed hole 37 corresponds to the conical cylinder 43 and the filter cylinder 16, and is used for feeding.

[0021] A mounting seat 11 is fixedly provided at the bottom of the extraction cylinder 2, and a drain pipe 12 is fixedly provided through the top of the mounting seat 11, and the drain pipe 12 is used for discharging materials. The drain pipe 12 is rotatably connected to the stirring shaft 9, and a plurality of first drain holes 13 are provided on the outer wall of the bottom end of the stirring shaft 9, and these first drain holes 13 are connected to the drain pipe 12 for discharging the extracted liquid.

[0022] The stirring shaft 9 is rotatably arranged on the top of the extraction cylinder 2, and a dual-shaft motor 7 is fixedly arranged on the top of the extraction cylinder 2. One output end of the dual-shaft motor 7 is fixedly connected to the stirring shaft 9, and is used to drive the stirring shaft 9 to rotate. A plurality of stirring spoons 10 are fixedly arranged on the outer wall of the stirring shaft 9, and the stirring spoons 10 are used to stir the material in the extraction cylinder 2.

[0023] In addition, the present embodiment also provides a sampling mechanism in the extraction cylinder 2, which is used in conjunction with the stirring shaft 9 to sample liquids at different depths. The sampling mechanism includes a sleeve 19 that is rotatably provided at the top of the extraction cylinder 2, and a sampling tube 5 is rotatably provided in the sleeve 19. The bottom of the sampling tube 5 is fixedly provided on the bottom wall of the extraction cylinder 2, and the top of the sampling tube 5 is sealed, and one side thereof is connected to an extension tube 6 for taking out samples. A first reciprocating screw 8 is rotatably provided at the top of the sampling tube 5, and a lifting box 28 is threadedly sleeved on the outer wall of the first reciprocating screw 8. A fourth liquid inlet 29 and a second liquid discharge hole 30 are provided on the outer wall of the lifting box 28, and a plurality of third liquid inlet holes 27 are provided on the outer wall of the sampling tube 5. A plurality of second liquid inlet holes 21 used in conjunction with the third liquid inlet holes 27 are provided on the outer wall of the sleeve 19, and these second liquid inlet holes 21 are set in a spiral step shape for sampling liquids at different depths.

[0024] In order to limit the position of the sleeve 19, a limiter is provided on the extraction cylinder 2. The limiter includes a fixing ring 24 fixedly sleeved on the outer wall of the sleeve 19, and a fixing block 22 is fixedly provided on the top of the extraction cylinder 2. A pin 23 is slidably provided through one side of the fixing block 22, and a first spring 26 is sleeved on the outer wall of the pin 23. The two ends of the first spring 26 are respectively fixedly connected to one side of the fixing block 22 and the outer wall of the pin 23, and are used to reset the pin 23. The outer wall of the fixing ring 24 is provided with a plurality of jacks 25 used in conjunction with the pin 23, and is used to limit the position of the sleeve 19.

[0025] In order to accurately adjust the corresponding relationship between the second liquid inlet hole 21 and the third liquid inlet hole 27, the number of the plug holes 25 corresponds to the second liquid inlet hole 21. In this way, when the pin 23 is inserted into different plug holes 25, the corresponding relationship between the second liquid inlet hole 21 and the third liquid inlet hole 27 can be accurately adjusted, thereby achieving sampling of liquids of different depths.

[0026] In order to realize the transmission connection between the stirring shaft 9 and the first reciprocating screw 8, a transmission member is provided. The transmission member includes two synchronous wheels 14, which are respectively fixedly sleeved on the outer wall of the bottom end of the stirring shaft 9 and the first reciprocating screw 8. The same synchronous belt 15 is transmission-connected between the two synchronous wheels 14 to realize the synchronous rotation of the stirring shaft 9 and the first reciprocating screw 8.

[0027] In order to further improve the sampling effect of the sampling mechanism, two groups of first liquid inlet holes 20 are also opened on the outer wall of the sleeve 19. The two groups of first liquid inlet holes 20 are used in conjunction with the upper and lower third liquid inlet holes 27 to pump the liquid when the lifting box 28 moves up and down, thereby further stirring and mixing the liquid.

[0028] Example 2 refer to Figure 1-Figure 6 , improved on the basis of Example 1: In order to tamp the material into the filter cartridge 16, the same internal screw 36 is rotatably provided through the top of the rotating disk 3, the feed cylinder 4 and the conical cylinder 43. The internal thread of the internal screw 36 is provided with a second reciprocating screw 38, and a connecting bar 40 is fixedly provided on the top of the second reciprocating screw 38. A tamping rod 41 corresponding to the feed hole 37 is fixedly provided at the bottom of the connecting bar 40, which is used to tamp the material into the filter cartridge 16. The bottom end of the internal screw 36 is fixedly connected to the other output end of the dual-axis motor 7, which is used to drive the internal screw 36 to rotate.

[0029] In order to guide the connecting strip 40, a guide rod 39 is fixedly provided through the top of the conical cylinder 43. The connecting strip 40 is slidably sleeved on the guide rod 39 to guide and limit the connecting strip 40.

[0030] In order to speed up the movement of materials, a rotating seat 44 is fixedly provided on the inner wall of one side of the feed barrel 4, and a knocking block 42 used in conjunction with the connecting strip 40 is rotatably provided in the rotating seat 44. A torsion spring 47 is sleeved on the rotating shaft of the knocking block 42, and the two ends of the torsion spring 47 are respectively fixedly connected to one side of the rotating seat 44 and the outer wall of the rotating shaft. When the connecting strip 40 rises, it will push the knocking block 42 to rotate and compress the torsion spring 47. When the connecting strip 40 is separated from the knocking block 42, the torsion spring 47 will release energy and drive the knocking block 42 to rotate, thereby knocking the feed barrel 4 to generate vibration and speed up the movement of materials.

[0031] In order to prevent the connection bar 40 from getting stuck with the knocking block 42 during the descent process, a wedge block 45 used in conjunction with the connection bar 40 is slidably provided on one side of the knocking block 42. Two second springs 46 are provided in the knocking block 42, and the two ends of the second spring 46 are respectively fixedly connected to the wedge block 45 and the side of the knocking block 42 that are close to each other. In this way, when the connection bar 40 descends, the wedge block 45 will be pushed to move and compress the second spring 46. When the connection bar 40 passes the knocking block 42, the second spring 46 will release energy and drive the wedge block 45 to reset, thereby preventing the connection bar 40 from getting stuck with the knocking block 42.

[0032] In the present application, when in use, the device is powered on, and the material is poured into the feed barrel 4. At this time, the material is located on the conical barrel 43, and then enters the filter barrel 16 in the extraction barrel 2 through the feed hole 37. At the same time, the dual-axis motor 7 is started to drive the inner screw 36 to rotate. The rotation of the inner screw 36 can drive the second reciprocating screw 38 to move up and down. The lifting and moving of the second reciprocating screw 38 can drive the connecting bar 40 to move up and down. The lifting and moving of the connecting bar 40 can push the material blocked in the conical barrel 43 into the filter barrel 16. At the same time, in the process of the connecting bar 40 moving downward, it can drive the wedge 45 to move upward. The knocking block 42 approaches, and when the connecting bar 40 moves to below the knocking block 42, the wedge block 45 can be reset and moved under the action of the second spring 46. When the connecting bar 40 moves upward, the knocking block 42 can be driven to rotate through the wedge block 45 and compress the torsion spring 47. When the connecting bar 40 is separated from the wedge block 45, the knocking block 42 can be reset and moved under the action of the torsion spring 47, knocking the inner wall of the feed barrel 4, causing the conical barrel 43 to vibrate and accelerate the movement of the material until the material is completely moved into the filter barrel 16, and then the feed barrel 4 is rotated to make the bottom end of the conical barrel 43 misaligned with the feed hole 37. Then, a proper amount of extractant is added into the extraction cylinder 2 to carry out the extraction work. During the startup of the dual-axis motor 7, the stirring shaft 9 can be driven to rotate. The rotation of the stirring shaft 9 can drive the stirring spoon 10 to stir the liquid. At the same time, the first reciprocating screw 8 can be driven to rotate through the synchronous wheel 14 and the synchronous belt 15. The rotation of the first reciprocating screw 8 can drive the lifting box 28 to move downward. The downward movement of the lifting box 28 can squeeze out the liquid in the sampling tube 5. When the lifting box 28 moves upward, the liquid in the extraction cylinder 2 can be pumped upward in the sampling tube 5. Suction is performed in sequence, which can make the liquid mixing more uniform. When the lifting box 28 drops to the lowest point, the fourth liquid inlet hole 29 is higher than the third liquid inlet hole 27 at the bottom, so it will not drive the liquid to be discharged from the extension tube 6. When sampling is required, the fixing ring 24 is rotated. The rotation of the fixing ring 24 can drive the sleeve 19 to rotate, so that the second liquid inlet hole 21 on the sleeve 19 corresponds to the corresponding third liquid inlet hole 27. At this time, the fourth liquid inlet hole 29 can correspond to the corresponding second liquid inlet hole 21 and the third liquid inlet hole 27 during the downward movement of the lifting box 28, and the liquid can enter the lifting box 28. The lifting box 28 continues to move upward so that the second liquid discharge hole 30 corresponds to the extension tube 6. At this time, the liquid in the lifting box 28 can be discharged to perform sampling. The fixing ring 24 can be rotated according to different sampling depths to adjust different second liquid inlet holes 21 to correspond to the first liquid inlet hole 20, so that liquids at different depths can be sampled; After the extraction is completed, the valve on the drain pipe 12 is opened, and the liquid in the extraction cylinder 2 can enter the drain pipe 12 through the first drain hole 13 and be discharged. Finally, the bottom cover 18 is opened, and the material in the filter cartridge 16 is automatically discharged.

[0033] However, as is well known to those skilled in the art, the working principle and wiring method of the dual-axis motor 7 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A biomedical extraction device, characterized in that: It comprises a workbench (1), wherein an extraction cartridge (2) is fixedly provided through the top of the workbench (1), a filter cartridge (16) is fixedly provided through the top of the extraction cartridge (2), and a bottom cover (18) corresponding to the filter cartridge (16) is threadedly provided at the bottom of the extraction cartridge (2) for sealing the bottom of the filter cartridge (16); A rotating disk (3) is fixedly provided on the top of the extraction cylinder (2), a feeding cylinder (4) is rotatably provided inside the rotating disk (3), a conical cylinder (43) for guiding materials is fixedly provided inside the feeding cylinder (4), and a feeding hole (37) corresponding to the conical cylinder (43) and the filter cylinder (16) is opened on the top of the rotating disk (3) for feeding materials; A mounting seat (11), the mounting seat (11) being fixedly arranged at the bottom of the extraction cylinder (2), a liquid discharge pipe (12) for discharging material being fixedly arranged through the top of the mounting seat (11), the liquid discharge pipe (12) being rotatably connected to the stirring shaft (9), and a plurality of first liquid discharge holes (13) being connected to the liquid discharge pipe (12) being formed on the outer wall of the bottom end of the stirring shaft (9); a stirring shaft (9), the stirring shaft (9) being rotatably disposed on the top of the extraction cylinder (2), a double-shaft motor (7) being fixedly disposed on the top of the extraction cylinder (2), one of the output ends of the double-shaft motor (7) being fixedly connected to the stirring shaft (9), and a plurality of stirring spoons (10) for stirring being fixedly disposed on the outer wall of the stirring shaft (9); The sampling mechanism is arranged in the extraction cylinder (2) and is used in conjunction with the stirring shaft (9) to sample liquids at different depths.

2. A biomedical extraction device according to claim 1, characterized in that: The sampling mechanism comprises a sleeve (19) which is rotatably provided on the top of the extraction cylinder (2), a sampling tube (5) being rotatably provided in the sleeve (19), the bottom of the sampling tube (5) being fixedly provided on the bottom wall of the extraction cylinder (2), the top of the sampling tube (5) being sealed, one side of which is connected to an extension tube (6), a first reciprocating screw (8) being rotatably provided on the top of the sampling tube (5), a lifting box (28) being threadedly sleeved on the outer wall of the first reciprocating screw (8), and a corresponding fourth liquid inlet hole (28) being provided on the outer wall of the lifting box (28) 9) and a second liquid discharge hole (30), the outer wall of the sampling tube (5) is provided with a plurality of third liquid inlet holes (27), the outer wall of the sleeve (19) is provided with a plurality of second liquid inlet holes (21) for use with the third liquid inlet holes (27), the plurality of second liquid inlet holes (21) being arranged in a spiral step shape for sampling liquids at different depths, the extraction cylinder (2) is provided with a limiter for limiting the position of the sleeve (19), the first reciprocating screw (8) is connected to the stirring shaft (9) via a transmission member, and is used to drive the lifting box (28) to move upward and downward.

3. A biomedical extraction device according to claim 2, characterized in that: The limiting member comprises a fixing ring (24) fixedly sleeved on the outer wall of the sleeve (19); a fixing block (22) is fixedly provided on the top of the extraction cylinder (2); a pin (23) is slidably provided through one side of the fixing block (22); a first spring (26) is sleeved on the outer wall of the pin (23); two ends of the first spring (26) are respectively fixedly connected to one side of the fixing block (22) and the outer wall of the pin (23); and a plurality of insertion holes (25) for use with the pin (23) are provided on the outer wall of the fixing ring (24).

4. A biomedical extraction device according to claim 3, characterized in that: The number of the plug holes (25) corresponds to the second liquid inlet holes (21), and is used to accurately adjust the second liquid inlet holes (21) to correspond to the third liquid inlet holes (27).

5. A biomedical extraction device according to claim 2, characterized in that: The transmission member comprises two synchronous wheels (14), the two synchronous wheels (14) being fixedly sleeved on the outer wall of the bottom end of the stirring shaft (9) and the first reciprocating screw (8) respectively, and the two synchronous wheels (14) being transmission-connected by a same synchronous belt (15).

6. A biomedical extraction device according to claim 5, characterized in that: Two groups of first liquid inlet holes (20) are formed on the outer wall of the sleeve (19), and the two groups of first liquid inlet holes (20) are used in conjunction with two upper and lower third liquid inlet holes (27) respectively to pump liquid to flow.

7. A biomedical extraction device according to claim 1, characterized in that: The top of the rotating disk (3), the feed cylinder (4) and the conical cylinder (43) are provided with a same internal screw (36) for rotation, the internal thread of the internal screw (36) is provided with a second reciprocating screw (38), a connecting strip (40) is fixedly provided at the top of the second reciprocating screw (38), a tamping rod (41) corresponding to the feed hole (37) is fixedly provided at the bottom of the connecting strip (40) for tamping the material into the filter cylinder (16), and the bottom end of the internal screw (36) is fixedly connected to the other output end of the dual-axis motor (7).

8. A biomedical extraction device according to claim 7, characterized in that: A guide rod (39) is fixedly provided through the top of the conical cylinder (43), and the connecting strip (40) is slidably sleeved on the guide rod (39) to guide the connecting strip (40).

9. A biomedical extraction device according to claim 7, characterized in that: A rotating seat (44) is fixedly provided on the inner wall of one side of the feed barrel (4), and a knocking block (42) is rotatably provided inside the rotating seat (44) and is used in conjunction with the connecting strip (40). A torsion spring (47) is sleeved on the rotating shaft of the knocking block (42), and the two ends of the torsion spring (47) are respectively fixedly connected to one side of the rotating seat (44) and the outer wall of the rotating shaft, and are used to knock the feed barrel (4) to generate vibration and accelerate the movement of materials.

10. A biomedical extraction device according to claim 9, characterized in that: A wedge block (45) for use with the connecting strip (40) is slidably disposed on one side of the knocking block (42), and two second springs (46) are disposed inside the knocking block (42). Two ends of the second springs (46) are respectively fixedly connected to the wedge block (45) and the knocking block (42) on one side close to each other, so as to prevent the connecting strip (40) from getting stuck with the knocking block (42) during the process of descending.

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