Detection equipment assembly for drug residual components

By designing detection equipment components that integrate crushing and extrusion functions, the complex detection process of fresh Chinese herbal pesticide residues is solved, and efficient and low-cost detection results are achieved.

CN120446412AInactive Publication Date: 2025-08-08WEST ANHUI UNIV
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Patent Information

Application Number
CN202510610041.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2025-08-08
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The pesticide residue detection process of fresh Chinese herbal medicines is complicated, resulting in low detection efficiency, high cost and high detection intensity.

Method used

Design a detection equipment component for drug residue components, including bottle body, sealing cap, crushing shaft, crushing knife, pressing plate, coarse filter plate, fine filter plate and drive assembly. The driving assembly drives the crushing shaft to lift and lower the rotation movement, and the crushing knife and coarse filter plate to lift and lower the movement, realizing the integration of crushing and screening, and integrating crushing and extrusion functions.

Benefits of technology

The detection process is simplified, the detection accuracy and efficiency are improved, and the detection cost and intensity are reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a detection equipment assembly for drug residual components. The detection equipment assembly comprises a bottle body, a sealing cover, a crushing shaft, a crushing cutter, a pressing plate, a coarse filter plate, a fine filter plate and a driving assembly, the driving assembly drives the crushing shaft to do lifting rotary motion, the crushing shaft drives the crushing cutter to do lifting rotary motion and the coarse filter plate to do lifting motion, the crushing cutter rotating in the lifting mode crushes fresh Chinese herbal medicine, and the coarse filter plate moving in the lifting mode screens the fresh Chinese herbal medicine. The fresh Chinese herbal medicines meeting the particle size requirement after being smashed can timely penetrate through the coarse filter plate to fall on the fine filter plate, the ascending and descending coarse filter plate intermittently extrudes the fresh Chinese herbal medicines on the fine filter plate in the ascending and descending process, juice of the fresh Chinese herbal medicines can penetrate through the fine filter plate to fall on the bottom of the bottle body, smashing and extruding are integrated, use is convenient, operability is high, and practicability is high. The whole detection process is simple, the precision and efficiency of pesticide residue detection of fresh Chinese herbal medicines are improved, and the detection cost and the detection intensity are reduced.
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Description

Technical Field

[0001] The present invention relates to the technical field of drug residue detection, in particular to a detection equipment component for drug residue components. Background Art

[0002] Fresh Chinese medicine primarily refers to the natural juices of fresh botanical herbs and fresh animal or insect medicines. After harvesting according to the season, the herbs are immediately preserved by juicing or refrigeration, and then incorporated into prescriptions. Fresh herbs are the starting point of traditional Chinese medicine practice. The saying "Shennong tasted hundreds of herbs and encountered seventy poisons in one day" suggests that the earliest use of herbal medicine for treatment involved fresh herbs, harvested and used immediately. It was through this extensive tasting of fresh herbs that many effective herbal remedies were discovered.

[0003] Fresh Chinese herbal medicines, treasures of traditional Chinese medicine, have a direct impact on people's health due to their quality and safety. Pesticide residues have long been a concern during the production and distribution of these herbs. During the cultivation process, pesticides may be used to control pests and diseases. However, excessive or inappropriate use of pesticides can lead to pesticide residues in freshly grown herbs. These residues not only affect the efficacy of these herbs but also pose potential risks to human health. Therefore, pesticide residue testing of fresh Chinese herbal medicines is a crucial measure to ensure their quality and safety.

[0004] Based on this, testing for pesticide residues in fresh Chinese herbal medicines has become a top priority in quality testing of Chinese herbal medicines. When testing for pesticide residues, the fresh Chinese herbal medicines must first be crushed and squeezed, and the squeezed juice or residue is extracted for component testing. Currently, people generally place the fresh Chinese herbal medicines to be tested in a crusher for crushing, then squeeze the crushed residue through an extrusion device, collect the squeezed juice, and test the juice. This pre-test processing method requires two independent operations, making the entire testing process more complicated, reducing testing efficiency, and increasing testing costs and intensity. Summary of the Invention

[0005] The embodiment of the present invention provides a detection equipment component for drug residue components, which can solve the problems in the prior art of complicated pesticide residue detection process of fresh Chinese herbal medicines, resulting in low detection efficiency, high detection cost and high detection intensity.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solution: a device assembly for detecting drug residues, comprising:

[0007] The processing bottle comprises: a bottle body, which is a container with an upper end open and is used to hold fresh Chinese herbal medicine to be processed; and a sealing cover, which is detachably connected to the upper end opening of the bottle body;

[0008] A crushing and extruding assembly, the crushing and extruding assembly comprising: a crushing shaft, the crushing shaft being rotatably connected to the lower end of the sealing cover; a plurality of crushing knives, the plurality of crushing knives being arranged on the crushing shaft; a pressing plate, the pressing plate being rotatably connected to the lower end of the crushing shaft; the coarse filter plate and the fine filter plate, the coarse filter plate being arranged on the pressing plate, and when the bottle body is connected to the sealing cover, the pressing plate and the fine filter plate are vertically slidably connected to the inner side of the bottle body, and the fine filter plate is located below the pressing plate;

[0009] A driving assembly is connected to the crushing shaft, and is used to drive the crushing shaft to perform lifting and rotating movements.

[0010] Preferably, a scraper is provided at the lower end of the pulverizing shaft, and the scraper contacts the upper surface of the coarse filter plate.

[0011] Preferably, a guide groove extending to the upper opening of the bottle body is provided on the inner wall of the bottle body, and guide blocks adapted to the guide groove are provided at the edges of the pressure plate and the fine filter plate.

[0012] Preferably, a guide column is provided on the lower surface of the fine filter plate, a sliding sleeve is provided on the lower part of the guide column, an elastic member is provided between the inner bottom wall of the sliding sleeve and the lower end of the guide column, and when the fine filter plate is installed inside the bottle body, the lower end of the sliding sleeve contacts the inner bottom wall of the bottle body.

[0013] Preferably, a screw sleeve is provided on the lower surface of the fine filter plate, the lower end of the screw sleeve is spirally connected to a screw rod, and a stirring blade is provided at the lower part of the screw rod. When the fine filter plate is installed inside the bottle body, the lower end of the screw rod contacts the inner bottom wall of the bottle body.

[0014] Preferably, the driving assembly includes a transmission box arranged at the upper end of the sealing cover, the transmission box is provided with a driving part, and the output end of the driving part is provided with a vertical shaft fixedly connected to the crushing shaft.

[0015] Preferably, the driving assembly also includes a spline arranged on the vertical shaft, the outside of the spline is vertically slidably connected to a sleeve, the inner wall of the sleeve is provided with a spline groove adapted to the spline, the lower end of the sleeve is provided with a hollow shaft fixedly connected to the crushing shaft, and also includes a lifting assembly for driving the sleeve to rise and fall.

[0016] Preferably, two convex rings are provided at the upper and lower ends of the sleeve, and the lifting assembly includes a horizontal shaft rotatably connected to the inside of the transmission box, a worm gear and a cam are provided on the horizontal shaft, an annular sleeve is rotatably connected to the annular surface of the cam, a rocker arm is provided on the annular sleeve, the lower end of the rocker arm is rotatably connected to a connecting rod, the right end of the connecting rod is hinged to the inner wall of the transmission box, a U-shaped frame is provided at the left end of the connecting rod, and the inner side of the left end of the U-shaped frame is rotatably connected to two driving blocks located between the two convex rings, and a worm connected to the worm gear is provided on the vertical shaft.

[0017] Compared with the prior art, the present invention cooperates with the bottle body, the sealing cover, the crushing shaft, the crushing knife, the pressing plate, the coarse filter plate, the fine filter plate and the driving component. The fresh Chinese herbal medicine to be tested is placed in the bottle body and then sealed with the sealing cover. The driving component drives the crushing shaft to perform lifting and rotating motion, and the crushing shaft drives the crushing knife to perform lifting and rotating motion, and drives the coarse filter plate to perform lifting and rotating motion. The lifting and rotating crushing knife is beneficial to improving the crushing effect of the fresh Chinese herbal medicine. The lifting and moving coarse filter plate has the effect of bumpy screening and preventing the sieve holes of the coarse filter plate from being blocked, which is beneficial to improving the screening efficiency of the fresh Chinese herbal medicine, so that the fresh Chinese herbal medicine that meets the particle size requirements after crushing passes through the coarse filter plate in time and falls on the fine filter plate. The lifting and lowering pressing plate intermittently squeezes the fresh Chinese herbal medicine on the fine filter plate during the lifting process, so that the juice of the fresh Chinese herbal medicine passes through the fine filter plate and falls on the bottom of the bottle body. It integrates crushing and squeezing, is easy to use, and has strong operability, making the entire detection process relatively simple, improving the accuracy and efficiency of pesticide residue detection of fresh Chinese herbal medicines, and reducing detection cost and detection intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of the processing bottle of the present invention;

[0020] Figure 3 This is a schematic diagram of the top view of the coarse filter plate of the present invention;

[0021] Figure 4 This is a schematic diagram of the top view of the fine filter plate of the present invention;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the sliding sleeve of the present invention;

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the transmission box of the present invention;

[0024] Figure 7 This is a schematic diagram of the top view of the shaft sleeve of the present invention;

[0025] Figure 8 This is a schematic diagram of the main cross-sectional structure of the connection between the shaft sleeve and the convex ring of the present invention;

[0026] Figure 9 It is a schematic diagram of the vertical shaft and spline connection structure of the present invention.

[0027] In the figure: 1. spline groove; 2. bottle body; 3. sealing cover; 4. crushing shaft; 5. crushing knife; 6. coarse filter plate; 7. fine filter plate; 8. scraper; 9. guide groove; 10. guide block; 11. guide column; 12. sliding sleeve; 13. elastic member; 14. screw rod; 15. stirring blade; 16. screw sleeve; 17. pressing plate; 18. transmission box; 19. driving part; 20. vertical shaft; 21. horizontal shaft; 22. worm gear; 23. cam; 24. annular sleeve; 25. rocker arm; 26. connecting rod; 27. U-shaped frame; 28. driving block; 29. worm; 30. spline; 31. shaft sleeve; 32. hollow shaft; 33. convex ring. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] like Figures 1 to 9 As shown, a device assembly for detecting drug residues includes:

[0030] The processing bottle comprises: a bottle body 2, which is a container with an upper end open and is used to hold fresh Chinese herbal medicine to be processed; a sealing cover 3, which is detachably connected to the upper end opening of the bottle body 2;

[0031] Specifically, the connection between the bottle body 2 and the sealing cover 3 is a threaded connection, a snap connection or other detachable connection methods.

[0032] The crushing and extrusion assembly includes: a crushing shaft 4, which is rotatably connected to the lower end of the sealing cover 3; a plurality of crushing knives 5, which are arranged on the crushing shaft 4; a pressing plate 17, which is rotatably connected to the lower end of the crushing shaft 4; a coarse filter plate 6 and a fine filter plate 7, which are arranged on the pressing plate 17. When the bottle body 2 is connected to the sealing cover 3, the pressing plate 17 and the fine filter plate 7 are vertically slidably connected to the inner side of the bottle body 2, and the fine filter plate 7 is located below the pressing plate 17;

[0033] The driving assembly is connected to the crushing shaft 4 and is used to drive the crushing shaft 4 to perform lifting and rotating movements.

[0034] During specific use, the fresh Chinese herbal medicine to be tested is placed in the bottle body 2 and sealed with a sealing cover 3. The driving component drives the crushing shaft 4 to perform lifting and rotating movements. The crushing shaft 4 drives the crushing knife 5 to perform lifting and rotating movements, and drives the coarse filter plate 6 to perform lifting and rotating movements. The lifting and rotating crushing knife 5 crushes the fresh Chinese herbal medicine. The lifting and moving coarse filter plate 6 has a bumpy screening effect, which efficiently screens the fresh Chinese herbal medicine, so that the fresh Chinese herbal medicine that meets the particle size requirements after crushing passes through the coarse filter plate 6 in time and falls on the fine filter plate 7. The lifting and lowering pressure plate 17 intermittently squeezes the fresh Chinese herbal medicine on the fine filter plate 7 during the lifting process, so that the juice of the fresh Chinese herbal medicine passes through the fine filter plate 7 and falls on the bottom of the bottle body 2.

[0035] In order to improve the detection accuracy, preferably, a scraper 8 is provided at the lower end of the crushing shaft 4 , and the scraper 8 contacts the upper surface of the coarse filter plate 6 .

[0036] Specifically, the scraper 8 rotates with the crushing shaft 4, scraping up the fresh Chinese herbal medicines on the coarse filter plate 6, so that the fresh Chinese herbal medicines that are not completely crushed are crushed for the second time, thereby improving the crushing effect, avoiding the accumulation of fresh Chinese herbal medicines on the coarse filter plate 6, and improving the screening efficiency on the coarse filter plate 6.

[0037] In order to improve the detection accuracy, preferably, a guide groove 9 extending to the upper end opening of the bottle body 2 is opened on the inner wall of the bottle body 2, and a guide block 10 adapted to the guide groove 9 is provided at the edge of the pressure plate 17 and the fine filter plate 7.

[0038] Specifically, after the inspection is completed, the bottle body 2 and the sealing cover 3 are disassembled, the coarse filter plate 6 is taken out together with the sealing cover 3, the bottle body 2 is inverted, and the fine filter plate 7 is taken out, which is convenient for disassembly, cleaning, and secondary use, and helps to avoid cross contamination.

[0039] In order to achieve the purpose of improving detection accuracy, preferably, a guide column 11 is provided on the lower surface of the fine filter plate 7, and a sliding sleeve 12 is provided on the lower part of the guide column 11. An elastic member 13 is provided between the inner bottom wall of the sliding sleeve 12 and the lower end of the guide column 11. The elastic member 13 is a stainless steel spring or a stainless steel spring. When the fine filter plate 7 is installed inside the bottle body 2, the lower end of the sliding sleeve 12 contacts the inner bottom wall of the bottle body 2.

[0040] Specifically, when the coarse filter plate 6 is squeezed downward, the fine filter plate 7 is squeezed downward by the extrusion force to squeeze the elastic member 13. When the coarse filter plate 6 rises, the fine filter plate 7 vibrates up and down under the action of the elastic potential energy of the elastic member 13, causing the fresh Chinese herbal medicines on the fine filter plate 7 to flip over, changing the hierarchical structure of the fresh Chinese herbal medicines, improving the squeezing and juicing effect, and completely separating the juice.

[0041] In order to achieve the purpose of improving detection accuracy, preferably, a screw sleeve 16 is provided on the lower surface of the fine filter plate 7, the lower end of the screw sleeve 16 is spirally connected to the screw rod 14, and the lower part of the screw rod 14 is provided with a stirring blade 15. When the fine filter plate 7 is installed inside the bottle body 2, the lower end of the screw rod 14 contacts the inner bottom wall of the bottle body 2.

[0042] Specifically, when the fine filter plate 7 descends, the screw sleeve 16 will be squeezed downward, and the screw sleeve 16 will drive the stirring blade 15 to rotate through the screw rod 14. When the fine filter plate 7 rises, under the action of the elastic potential energy of the elastic member 13, the screw sleeve 16 rises, and the stirring blade 15 rotates in the opposite direction, stirring the juice at the bottom of the bottle body 2 to mix the juice evenly. In the process of the fine filter plate 7 vibrating up and down, the screw rod 14 will be driven to move up and down, causing the stirring blade 15 to perform a compound motion of lifting and rotating, thereby achieving a better mixing effect.

[0043] In order to achieve the purpose of improving detection accuracy, preferably, the driving assembly includes a transmission box 18 arranged at the upper end of the sealing cover 3, and the transmission box 18 is provided with a driving part 19, the driving part 19 is a motor, and the output end of the driving part 19 is provided with a vertical shaft 20 fixedly connected to the crushing shaft 4.

[0044] The driving assembly also includes a spline 30 arranged on the vertical shaft 20, and the outside of the spline 30 is vertically slidably connected to a sleeve 31. A spline groove 1 adapted to the spline 30 is provided on the inner wall of the sleeve 31. The lower end of the sleeve 31 is provided with a hollow shaft 32 fixedly connected to the crushing shaft 4, and also includes a lifting assembly for driving the sleeve 31 to rise and fall.

[0045] Two convex rings 33 are provided at the upper and lower ends of the sleeve 31. The lifting assembly includes a horizontal shaft 21 rotatably connected to the inside of the transmission box 18. A worm gear 22 and a cam 23 are provided on the horizontal shaft 21. An annular sleeve 24 is rotatably connected to the annular surface of the cam 23. A rocker arm 25 is provided on the annular sleeve 24. The lower end of the rocker arm 25 is rotatably connected to a connecting rod 26. The right end of the connecting rod 26 is hinged to the inner wall of the transmission box 18. A U-shaped frame 27 is provided at the left end of the connecting rod 26. The inner side of the left end of the U-shaped frame 27 is rotatably connected to two driving blocks 28 located between the two convex rings 33. A worm 29 connected to the worm gear 22 for transmission is provided on the vertical shaft 20.

[0046] Specifically, the driving part 19 drives the vertical shaft 20 to rotate, and the vertical shaft 20 drives the crushing shaft 4 to rotate through the shaft sleeve 31 and the hollow shaft 32. The vertical shaft 20 drives the worm wheel 22 to rotate through the worm 29, and the worm wheel 22 drives the cam 23 to rotate eccentrically through the horizontal shaft 21. The cam 23 drives the annular sleeve 24 to rotate eccentrically. The annular sleeve 24 drives the connecting rod 26 to swing up and down through the rocker arm 25, so that the connecting rod 26 drives the driving block 28 to move up and down through the U-shaped frame 27. The driving block 28 drives the shaft sleeve 31 to move up and down through the two convex rings 33, thereby driving the crushing shaft 4 to move up and down, so that the crushing shaft 4 can move up and down and rotate. The composite motion of rotation drives the crushing knife 5 to do lifting and rotating motion, while the coarse filter plate 6 does lifting motion. The lifting and rotating crushing knife 5 crushes the fresh Chinese herbal medicine, and the lifting coarse filter plate 6 has a bumpy screening effect, which efficiently screens the fresh Chinese herbal medicine, so that the fresh Chinese herbal medicine that meets the particle size requirements after crushing passes through the coarse filter plate 6 in time and falls on the fine filter plate 7. The lifting pressing plate 17 intermittently squeezes the fresh Chinese herbal medicine on the fine filter plate 7 during the lifting process, so that the juice of the fresh Chinese herbal medicine passes through the fine filter plate 7 and falls on the bottom of the bottle body 2. After the stirring blade 15 stirs the juice evenly, the juice is tested for pesticide residues.

[0047] Compared with the prior art, the present invention is provided with the bottle body 2, the sealing cover 3, the crushing shaft 4, the crushing knife 5, the pressing plate 17, the coarse filter plate 6, the fine filter plate 7 and the driving assembly. The fresh Chinese herbal medicine to be tested is placed in the bottle body 2 and sealed with the sealing cover 3. The driving assembly drives the crushing shaft 4 to perform lifting and rotating motion. The crushing shaft 4 drives the crushing knife 5 to perform lifting and rotating motion, and drives the coarse filter plate 6 to perform lifting and rotating motion. The lifting and rotating crushing knife 5 is beneficial to improving the crushing effect of the fresh Chinese herbal medicine. The lifting and rotating coarse filter plate 6 has the functions of bump screening and preventing the coarse filter plate 6 from vibrating. The effect of sieve hole blocking is conducive to improving the screening efficiency of fresh Chinese herbal medicines, so that the fresh Chinese herbal medicines that meet the particle size requirements after crushing can pass through the coarse filter plate 6 in time and fall on the fine filter plate 7. The lifting pressure plate 17 intermittently squeezes the fresh Chinese herbal medicines on the fine filter plate 7 during the lifting process, so that the juice of the fresh Chinese herbal medicines passes through the fine filter plate 7 and falls on the bottom of the bottle body 2. It integrates crushing and squeezing into one, is easy to use, and has strong operability, making the entire detection process relatively simple, improving the accuracy and efficiency of pesticide residue detection of fresh Chinese herbal medicines, and reducing detection costs and detection intensity.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device assembly for detecting drug residues, characterized in that: include: A processing bottle, comprising: a bottle body (2), the bottle body (2) being a container with an upper end open, the bottle body (2) being used to hold fresh Chinese herbal medicine to be processed; a sealing cap (3), the sealing cap (3) being detachably connected to the upper end opening of the bottle body (2); A crushing and extruding assembly, the crushing and extruding assembly comprising: a crushing shaft (4), the crushing shaft (4) being rotatably connected to the lower end of the sealing cover (3); a plurality of crushing knives (5), the plurality of crushing knives (5) being arranged on the crushing shaft (4); a pressing plate (17), the pressing plate (17) being rotatably connected to the lower end of the crushing shaft (4); the coarse filter plate (6) and the fine filter plate (7), the coarse filter plate (6) being arranged on the pressing plate (17), and when the bottle body (2) is connected to the sealing cover (3), the pressing plate (17) and the fine filter plate (7) are vertically slidably connected to the inner side of the bottle body (2), and the fine filter plate (7) is located below the pressing plate (17); A driving assembly is connected to the crushing shaft (4), and is used to drive the crushing shaft (4) to perform lifting and rotating movements.

2. The device assembly for detecting drug residues according to claim 1, characterized in that: A scraper (8) is provided at the lower end of the pulverizing shaft (4), and the scraper (8) is in contact with the upper surface of the coarse filter plate (6).

3. The device assembly for detecting drug residues according to claim 1, characterized in that: A guide groove (9) extending to the upper opening of the bottle body (2) is provided on the inner wall of the bottle body (2), and guide blocks (10) adapted to the guide groove (9) are provided at the edges of the pressure plate (17) and the fine filter plate (7).

4. The device assembly for detecting drug residues according to claim 3, characterized in that: A guide column (11) is provided on the lower surface of the fine filter plate (7), a sliding sleeve (12) is provided on the lower part of the guide column (11), an elastic member (13) is provided between the inner bottom wall of the sliding sleeve (12) and the lower end of the guide column (11), and when the fine filter plate (7) is installed inside the bottle body (2), the lower end of the sliding sleeve (12) contacts the inner bottom wall of the bottle body (2).

5. The device assembly for detecting drug residues according to claim 4, characterized in that: The lower surface of the fine filter plate (7) is provided with a screw sleeve (16), the lower end of the screw sleeve (16) is spirally connected to a screw rod (14), and the lower part of the screw rod (14) is provided with a stirring blade (15). When the fine filter plate (7) is installed inside the bottle body (2), the lower end of the screw rod (14) contacts the inner bottom wall of the bottle body (2).

6. The device assembly for detecting drug residues according to claim 1, characterized in that: The driving assembly comprises a transmission box (18) arranged at the upper end of the sealing cover (3); a driving part (19) is arranged on the transmission box (18); and a vertical shaft (20) fixedly connected to the crushing shaft (4) is arranged at the output end of the driving part (19).

7. The device assembly for detecting drug residues according to claim 6, characterized in that: The driving assembly further comprises a spline (30) arranged on the vertical shaft (20); the outer portion of the spline (30) is vertically slidably connected to a shaft sleeve (31); a spline groove (1) adapted to the spline (30) is provided on the inner wall of the shaft sleeve (31); a hollow shaft (32) fixedly connected to the crushing shaft (4) is provided at the lower end of the shaft sleeve (31); and a lifting assembly for driving the shaft sleeve (31) to be lifted and lowered.

8. The device assembly for detecting drug residues according to claim 7, characterized in that: Two convex rings (33) are provided at the upper and lower ends of the shaft sleeve (31); the lifting assembly comprises a transverse shaft (21) rotatably connected to the inside of the transmission box (18); a worm gear (22) and a cam (23) are provided on the transverse shaft (21); an annular sleeve (24) is rotatably connected to the annular surface of the cam (23); a rocker arm (25) is provided on the annular sleeve (24); a connecting rod (26) is rotatably connected to the lower end of the rocker arm (25); the right end of the connecting rod (26) is hinged to the inner wall of the transmission box (18); a U-shaped frame (27) is provided at the left end of the connecting rod (26); two driving blocks (28) located between the two convex rings (33) are rotatably connected to the inner side of the left end of the U-shaped frame (27); a worm (29) connected to the worm gear (22) is provided on the vertical shaft (20).