Pesticide residue detection equipment for traditional Chinese medicinal materials

Abstract

The invention belongs to the technical field of pesticide detection, and particularly relates to traditional Chinese medicine pesticide residue detection equipment which comprises a machine body, a grabbing mechanism is mounted in the machine body, a positioning mechanism is rotatably connected to the inner wall, located above the grabbing mechanism, of the machine body, and a sampling mechanism is slidably connected to the inner wall, located above the positioning mechanism, of the machine body. The grabbing mechanism is used for grabbing the traditional Chinese medicinal materials to the positioning mechanism, and the sampling mechanism is used for conducting multi-layer sampling on the traditional Chinese medicinal materials on the positioning mechanism from outside to inside. When traditional Chinese medicinal materials are sampled through the sampling mechanism, sampling can be carried out from outside to inside, sampling detection can be carried out on different parts of the traditional Chinese medicinal materials, sampling is more comprehensive, and therefore the integrity of the detection result is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pesticide detection, in particular to a traditional Chinese medicinal material pesticide residue detection device. BACKGROUND

[0002] Traditional Chinese medicinal materials are an important part of traditional medicine, and the quality and safety thereof are directly related to clinical efficacy and medication safety. Pesticides are used in the planting of traditional Chinese medicinal materials, and pesticide residues exist. Pesticide residues can not only affect the efficacy of traditional Chinese medicinal materials, but also potentially harm human health. Therefore, it is crucial to establish an efficient and accurate method for detecting pesticide residues in traditional Chinese medicinal materials. Currently, pesticide residue detection techniques mainly include chromatography, chromatography-mass spectrometry, and spectroscopic analysis, among others. Detection techniques based on optical principles, such as ultraviolet-visible spectrophotometry and fluorescence analysis, have certain application value in pesticide residue screening due to their ease of operation and relatively low cost.

[0003] According to the search, the Chinese patent with the publication number CN115931810B provides a grain crop pesticide residue detection device. The device randomly samples potatoes through the random material taking assembly and the sampling and detection assembly, and then separates the randomly obtained sample and mixes it with the detection solution for detection, making the detection results random, representative, and accurate.

[0004] However, when using the above detection device for sampling, only the fixed part of the detection object can be sampled and detected once. Since the pesticide residues in different parts of the detection object are different, when sampling and detecting pesticide residues in blocky or rhizomatous traditional Chinese medicinal materials (such as ginseng, astragalus, fritillaria, etc.) with a certain volume and hardness, it is not possible to sample and detect different parts of the traditional Chinese medicinal materials, and the detection results have limitations. SUMMARY

[0005] The present application aims to provide a traditional Chinese medicinal material pesticide residue detection device to solve the problems raised in the background.

[0006] To achieve the above-mentioned application purposes, the present application adopts the following technical solutions: The traditional Chinese medicinal material pesticide residue detection device provided by the present application comprises a machine body, a grabbing mechanism is installed inside the machine body, a positioning mechanism is rotatably connected to the inner wall above the grabbing mechanism, and a sampling mechanism is slidably connected to the inner wall above the positioning mechanism. The grabbing mechanism is used to grab traditional Chinese medicinal materials onto the positioning mechanism, and the sampling mechanism is used to sample the traditional Chinese medicinal materials on the positioning mechanism from the outside to the inside in multiple layers.

[0007] Further, the sampling mechanism comprises a first rack slidably connected to the inner wall of the body, a connecting gear slidably connected to the inner wall of the body close to the first rack, a center plate fixedly connected to one side of the connecting gear, a second rack meshingly and drivingly connected to the other side of the connecting gear away from the first rack, the second rack being fixedly connected to the inner wall of the body, a driving push rod fixedly connected to one end of the first rack, an installation plate fixedly connected to the other end of the first rack away from the second rack through a connecting rod, a first sampling tube slidably connected to the installation plate, a second sampling tube slidably sleeved in the first sampling tube, and a third sampling tube slidably sleeved in the second sampling tube, sliding grooves being formed in the inner walls of the first sampling tube, the second sampling tube and the third sampling tube, and blades being slidably connected in the sliding grooves, one end of each blade fixedly connected to a connecting rod in the sliding groove, and a pushing assembly fixedly connected to the side surface of each of the first sampling tube, the second sampling tube and the third sampling tube.

[0008] Further, the pushing assembly comprises a first contact plate slidably connected to the side wall of the first sampling tube, a spring fixedly connected between the first contact plate and the first sampling tube, a limiting rack fixedly connected to one side of the installation plate, a first pawl hingedly connected to the first contact plate, an electric push rod fixedly connected to the upper end of the installation plate, a driving plate fixedly connected to the output end of the electric push rod, a pushing groove formed in the driving plate, pushing conical blocks slidably connected in the pushing groove at intervals, a first conical block fixedly connected to one end of the first pawl close to the pushing groove, the first conical block abutting against the pushing conical block, the first pawl meshing with the limiting rack when the first conical block is separated from the pushing groove, and the electric push rod fixedly connected to one side of the third sampling tube.

[0009] Further, the limiting assembly comprises a first rotating tube rotatably connected to the center plate, a first opening formed in one side of the first rotating tube close to the first contact plate, a second rotating tube threadedly connected in the first rotating tube, a second opening formed in one side of the second rotating tube close to the first contact plate, a rotating ring rotatably connected to the bottom end of the second rotating tube, a first limiting rod fixedly connected to one side of the rotating ring close to the first contact plate, a third rotating tube threadedly connected in the second rotating tube, a second limiting rod rotatably connected to the bottom end of the third rotating tube, the second limiting rod slidably connected in the second opening, the first limiting rod slidably connected in the first opening, limiting plates fixedly and symmetrically connected to the center plate, the first limiting rod and the second limiting rod located between the two limiting plates, and a rotating motor fixedly connected to one end of the first rotating tube.

[0010] Further, the positioning mechanism comprises a rotating roller rotatably connected to the inner wall of the body, a transmission belt is drivingly connected to the rotating roller, a baffle is fixedly connected to the inner wall of the body and extends above the transmission belt, and the rotating roller is driven by a driving motor.

[0011] Further, the first limiting rod and the second limiting rod both extend to the pushing conical block.

[0012] Further, the second sampling tube is slidably connected with a second contact plate, springs are fixedly connected between the second contact plate and the second sampling tube, a second pawl is hingedly connected to the second contact plate, a second conical block is fixedly connected to one end of the second pawl close to the pushing groove, the third sampling tube is slidably connected with a third contact plate, springs are fixedly connected between the third contact plate and the third sampling tube, a third pawl is hingedly connected to the third contact plate, and a third conical block is fixedly connected to one end of the third pawl close to the pushing groove.

[0013] Further, the bottom end of the first rack is flush with the upper surface of the transmission belt, the second rack and the first rack are engaged with the connecting gear, and the second rack and the first rack are located on the two sides of the connecting gear.

[0014] Further, the grabbing mechanism is a mechanical hand structure.

[0015] Compared with the prior art, the present application has the following beneficial effects: When the sampling mechanism samples traditional Chinese medicinal materials, the sampling is performed from the outside to the inside, different parts of the traditional Chinese medicinal materials are sampled and detected, the sampling is more comprehensive, and the integrity of the detection result is improved.

[0016] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the exemplary embodiments of the present application and their description, explain the present application, and do not limit the present application.

[0018] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the structure of the sampling mechanism of the present application; Figure 3 is a schematic diagram of the local structure of the pushing assembly of the present application; Figure 4It is a partial cross-section structure schematic diagram of the pushing assembly of the present application; Figure 5 It is a partial structure schematic diagram of the limiting assembly of the present application; Figure 6 It is a bottom structure schematic diagram of the limiting assembly of the present application.

[0019] In the figure: 1, body; 2, positioning mechanism; 3, sampling mechanism; 4, first rack; 5, connecting gear; 6, center plate; 7, second rack; 8, driving push rod; 9, mounting plate; 10, first sampling pipe; 11, second sampling pipe; 12, third sampling pipe; 13, sliding groove; 14, blade; 15, connecting rod; 16, first contact plate; 17, limiting rack; 18, first pawl; 19, electric push rod; 20, driving plate; 21, pushing groove; 22, pushing conical block; 23, first conical block; 24, first rotating pipe; 25, first opening; 26, second rotating pipe; 27, second opening; 28, rotating ring; 29, first limiting rod; 30, third rotating pipe; 31, second limiting rod; 32, limiting plate; 33, rotating motor; 34, rotating roller; 35, transmission belt; 36, baffle. DETAILED DESCRIPTION

[0020] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0021] Please refer to Figures 1 to 6 The present application provides a kind of Chinese herbal medicine pesticide residue detection equipment, including body 1, grabbing mechanism is installed in body 1, positioning mechanism 2 is rotationally connected to the inner wall of body 1 above grabbing mechanism, sampling mechanism 3 is slidably connected to the inner wall of body 1 above positioning mechanism 2, grabbing mechanism is used to grab Chinese herbal medicine to positioning mechanism 2, sampling mechanism 3 is used to sample Chinese herbal medicine on positioning mechanism 2 from outside to inside.

[0022] Chinese herbal medicine is driven to positioning mechanism 2 by grabbing mechanism, positioning mechanism 2 drives Chinese herbal medicine to the lower end of sampling mechanism 3, to facilitate sampling mechanism 3 to sample Chinese herbal medicine, sampling mechanism 3 samples Chinese herbal medicine, which can be sampled from outside to inside, and different parts of Chinese herbal medicine are sampled and detected, so that sampling is more comprehensive, thereby improving the integrity of detection results.

[0023] Please refer to Figures 2 to 4The sampling mechanism 3 includes a first rack 4 slidably connected to the inner wall of the body 1. A connecting gear 5 is slidably connected to the inner wall of the body 1 near the first rack 4. A center plate 6 is fixedly connected to one side of the connecting gear 5. A second rack 7 is meshed and driven to the side of the connecting gear 5 away from the first rack 4. The second rack 7 is fixedly connected to the inner wall of the body 1. A drive push rod 8 is fixedly connected to one end of the first rack 4. A mounting plate 9 is fixedly connected to the end of the first rack 4 away from the second rack 7 via a connecting rod. A first sampling tube 10 is slidably connected to the mounting plate 9. A second sampling tube 11 is slidably connected inside the tube 10, and a third sampling tube 12 is slidably connected inside the second sampling tube 11. The inner walls of the first sampling tube 10, the second sampling tube 11, and the third sampling tube 12 are all provided with sliding grooves 13. A blade 14 is slidably connected inside the sliding groove 13. A connecting rod 15 is fixedly connected to one end of the blade 14 located inside the sliding groove 13. Pushing components are fixedly connected to the sides of the first sampling tube 10, the second sampling tube 11, and the third sampling tube 12. A limit component is rotatably connected to the inner wall of the first sampling tube 10.

[0024] When sampling Chinese medicinal herbs, the drive push rod 8 is activated, which moves the first rack 4. The movement of the first rack 4 causes the connecting gear 5 to rotate, and simultaneously moves the connecting gear 5 downwards. When the first sampling tube 10 contacts the top of the Chinese medicinal herb, the drive push rod 8 stops moving. During its movement, the connecting gear 5 meshes with the second rack 7. The distance the connecting gear 5 moves is half the distance the first rack 4 moves, and the connecting gear 5 is always positioned between the bottom of the first sampling tube 10 and the bottom of the second rack 7. When the first sampling tube 10 contacts the top of the Chinese medicinal herb, the connecting gear 5 is located at the middle plane of the Chinese medicinal herb, that is, the center plate 6 is located at the center of the Chinese medicinal herb, thus enabling sampling of the Chinese medicinal herb. Sampling is performed at the center. During sampling, the limiting component moves, dividing the distance between the center plate 6 and the first sampling tube 10 into three equal parts. This causes the pushing component to drive the first sampling tube 10, the second sampling tube 11, and the third sampling tube 12 to each take one-third of the sample. When they reach the corresponding positions, the blade 14 cuts the Chinese medicinal material, breaking it to obtain a sample. The samples taken from each part are added to the detection solution for testing. The obtained samples include the outer, middle, and inner layers, making the sampling more comprehensive and improving the integrity of the test results. Furthermore, it can sample Chinese medicinal materials of different thicknesses from the outer, middle, and inner layers, increasing the applicability of the equipment.

[0025] Please see Figure 2 and Figure 4The pushing assembly includes a first contact plate 16 slidably connected to the side wall of the first sampling tube 10, a spring fixedly connected between the first contact plate 16 and the first sampling tube 10, a limiting rack 17 fixedly connected to one side of the mounting plate 9, a first pawl 18 hinged on the first contact plate 16, a first conical block 23 fixedly connected to one end of the first pawl 18 near the pushing groove 21, an electric push rod 19 fixedly connected to the upper end of the mounting plate 9, a drive plate 20 fixedly connected to the output end of the electric push rod 19, a pushing groove 21 opened on the drive plate 20, a pushing conical block 22 slidably connected in the pushing groove 21 at intervals, the first conical block 23 abutting against the pushing conical block 22, when the first conical block 23 disengages from the pushing groove 21, the first pawl 18 meshes with the limiting rack 17, and the electric push rod 19 is fixedly connected to one side of the third sampling tube 12.

[0026] Please see Figure 5 and Figure 6 The limiting assembly includes a first rotating tube 24 rotatably connected to the center plate 6. The first rotating tube 24 has a first opening 25 on the side near the first contact plate 16. A second rotating tube 26 is internally threaded to the first rotating tube 24. A second opening 27 is opened on the side of the second rotating tube 26 near the first contact plate 16. A rotating ring 28 is rotatably connected to the bottom end of the second rotating tube 26. A first limiting rod 29 is fixedly connected to the side of the rotating ring 28 near the first contact plate 16. A third rotating tube 30 is internally threaded to the second rotating tube 26. A second limiting rod 31 is rotatably connected to the bottom end of the third rotating tube 30. The second limiting rod 31 is slidably connected to the second opening 27. The first limiting rod 29 is slidably connected to the first opening 25. Limiting plates 32 are symmetrically fixedly connected on the center plate 6. The first limiting rod 29 and the second limiting rod 31 are located between the two limiting plates 32. A rotating motor 33 is fixedly connected to one end of the first rotating tube 24.

[0027] When the center plate 6 is located in the middle part of the Chinese medicinal material, the rotating motor 33 is started. The rotating motor 33 drives the first rotating tube 24 to rotate, and the rotation of the first rotating tube 24 drives the second rotating tube 26 to rotate. When the second rotating tube 26 rotates, the first limiting rod 29 abuts against the limiting plate 32, so that the rotating ring 28 and the first limiting rod 29 rotate relative to the second rotating tube 26. When the second rotating tube 26 rotates, it will drive the rotating ring 28 to rise. Similarly, when the second rotating tube 26 rotates, the third rotating tube 30 rotates accordingly and drives the second limiting rod 31 to rise. When the second limiting rod 31 abuts against the lower end of the first sampling tube 10, the rotating motor 33 stops working. The bottom ends of the first limiting rod 29, the second limiting rod 31 and the first rotating tube 24 will divide the distance of half the thickness of the Chinese medicinal material into three equal parts, so that the subsequent sampling of the Chinese medicinal material can be carried out from the outer surface, middle layer and the inside, and the sampling and testing of different parts of the Chinese medicinal material can be carried out, making the sampling more comprehensive.

[0028] The electric push rod 19 is activated, which drives the drive plate 20 to move. The drive plate 20 moves the conical block 22, which in turn moves the first conical block 23. The first conical block 23 moves the first pawl 18, which in turn moves the first contact plate 16. The first contact plate 16 moves the first sampling tube 10, which is then inserted into the Chinese medicinal material for sampling. When the pushing conical block 22 contacts the center plate 6, the center plate 6 moves the pushing conical block 22, which in turn moves the first sampling tube 10. The first conical block 23 moves, which drives the first pawl 18 to move. The first pawl 18 engages with the limiting rack 17, and the first sampling tube 10 stops moving. At the same time, when the first contact plate 16 moves, the first contact plate 16 drives the connecting rod 15 to move. The connecting rod 15 drives the blade 14 to move, and the blade 14 cuts and samples the Chinese medicinal material. After sampling is completed, the process is reversed. The first sampling tube 10 returns to the initial position, and the sample is taken out from the first sampling tube 10 and placed in the detection solution for testing to obtain pesticide residue data.

[0029] Please see Figure 1 The positioning mechanism 2 includes a rotating roller 34 rotatably connected to the inner wall of the machine body 1. A transmission belt 35 is driven to the rotating roller 34. A baffle 36 is fixedly connected to the inner wall of the machine body 1 and extends above the transmission belt 35. The rotating roller 34 is driven by a drive motor. The gripping mechanism grips the Chinese medicinal materials and places them on the transmission belt 35. The drive motor drives the rotating roller 34 to rotate, which in turn drives the transmission belt 35 to rotate. The transmission belt 35 moves the Chinese medicinal materials to the baffle 36, so that the Chinese medicinal materials are in a fixed position each time they are sampled, which is convenient for sampling.

[0030] A second contact plate is slidably connected to the second sampling tube 11, and a spring is fixedly connected between the second contact plate and the second sampling tube 11. A second pawl is hinged to the second contact plate, and a second conical block is fixedly connected to one end of the second pawl near the pushing groove 21. A third contact plate is slidably connected to the third sampling tube 12, and a spring is fixedly connected between the third contact plate and the third sampling tube 12. A third pawl is hinged to the third contact plate, and a third conical block is fixedly connected to one end of the third pawl near the pushing groove 21. The bottom of the first limiting rod 29, the second limiting rod 31, and the first rotating tube 24... The end will divide the thickness of the Chinese medicinal material into three equal parts. During the descent of the third sampling tube 12 and the second sampling tube 11, the third and second conical blocks will successively contact the second limiting rod 31 and the first limiting rod 29, thereby stopping the third sampling tube 12 and the second sampling tube 11 from moving to taking one-third of the Chinese medicinal material from the outside to the inside. When returning to the initial position, the second contact plate will drive the second pawl to move under the action of the spring. The second pawl will drive the second conical block to move, so that the second conical block will again abut against the pushing conical block 22 for the next sampling.

[0031] Please see Figure 2 The first limiting rod 29 and the second limiting rod 31 both extend to the pushing cone block 22. When the pushing cone block 22 moves to the first limiting rod 29 and the second limiting rod 31, the first limiting rod 29 and the second limiting rod 31 respectively drive the pushing cone block 22 to move.

[0032] Please see Figure 1 The bottom end of the first rack 4 is flush with the upper surface of the transmission belt 35. Both the second rack 7 and the first rack 4 mesh with the connecting gear 5. The second rack 7 and the first rack 4 are located on both sides of the connecting gear 5. When the second rack 7 moves, the connecting gear 5 is always located in the middle position between the bottom end of the first sampling tube 10 and the bottom end of the second rack 7, ensuring that the first sampling tube 10 can take samples from the inner layer of the Chinese medicinal material.

[0033] The gripping mechanism is a robotic arm structure.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A traditional Chinese medicinal material pesticide residue detection device, characterized in that, Including the body (1), the body (1) inside installation has the grabbing mechanism, the body (1) is located above the inner wall of the grabbing mechanism rotationally connected with the positioning mechanism (2), the body (1) is located above the inner wall of the positioning mechanism (2) slidingly connected with the sampling mechanism (3), the grabbing mechanism is used to grab traditional Chinese medicinal materials to the positioning mechanism (2), the sampling mechanism (3) is used for the traditional Chinese medicinal materials on the positioning mechanism (2) from outside to inside multilayer sampling.

2. The traditional Chinese medicinal material pesticide residue detection device according to claim 1, characterized in that, The sampling mechanism (3) includes a first rack (4) slidingly connected to the inner wall of the body (1), a connecting gear (5) slidingly connected to the inner wall of the body (1) near the first rack (4), a center plate (6) fixedly connected to one side of the connecting gear (5), a second rack (7) meshingly and drivingly connected to the side of the connecting gear (5) away from the first rack (4), the second rack (7) is fixedly connected to the inner wall of the body (1), a drive push rod (8) is fixedly connected to one end of the first rack (4), an installation plate (9) is fixedly connected to the end of the first rack (4) away from the second rack (7) through a connecting rod, a first sampling tube (10) is slidingly connected to the installation plate (9), a second sampling tube (11) is slidingly sleeved in the first sampling tube (10), a third sampling tube (12) is slidingly sleeved in the second sampling tube (11), sliding grooves (13) are formed in the inner walls of the first sampling tube (10), the second sampling tube (11) and the third sampling tube (12), blades (14) are slidingly connected in the sliding grooves (13), connecting rods (15) are fixedly connected to one end of the blades (14) in the sliding grooves (13), push assemblies are fixedly connected to the sides of the first sampling tube (10), the second sampling tube (11) and the third sampling tube (12), and a limiting assembly is rotatably connected to the inner wall of the body (1) near the first sampling tube (10).

3. The traditional Chinese medicinal material pesticide residue detection device according to claim 2, characterized in that, The push assembly includes a first contact plate (16) slidingly connected to the side wall of the first sampling tube (10), springs are fixedly connected between the first contact plate (16) and the first sampling tube (10), a limiting rack (17) is fixedly connected to one side of the installation plate (9), a first pawl (18) is hingedly connected to the first contact plate (16), a first tapered block (23) is fixedly connected to one end of the first pawl (18) near a push groove (21), an electric push rod (19) is fixedly connected to the upper end of the installation plate (9), a drive plate (20) is fixedly connected to the output end of the electric push rod (19), a push groove (21) is formed in the drive plate (20), push tapered blocks (22) are slidingly connected in the push groove (21) at intervals, the first tapered block (23) abuts against the push tapered blocks (22), when the first tapered block (23) is separated from the push groove (21), the first pawl (18) meshes with the limiting rack (17), and the electric push rod (19) is fixedly connected to one side of the third sampling tube (12).

4. The traditional Chinese medicinal material pesticide residue detection device according to claim 2, characterized in that, The limiting assembly comprises a first rotating pipe (24) rotatably connected to the center plate (6), a first opening (25) is formed on one side of the first rotating pipe (24) close to the first contact plate (16), a second rotating pipe (26) is threadedly connected in the first rotating pipe (24), a second opening (27) is formed on one side of the second rotating pipe (26) close to the first contact plate (16), a rotating ring (28) is rotatably connected to the bottom end of the second rotating pipe (26), a first limiting rod (29) is fixedly connected to one side of the rotating ring (28) close to the first contact plate (16), a third rotating pipe (30) is threadedly connected in the second rotating pipe (26), a second limiting rod (31) is rotatably connected to the bottom end of the third rotating pipe (30), the second limiting rod (31) is slidably connected in the second opening (27), the first limiting rod (29) is slidably connected in the first opening (25), the center plate (6) is fixedly connected with limiting plates (32) in symmetry, the first limiting rod (29) and the second limiting rod (31) are located between the two limiting plates (32), and one end of the first rotating pipe (24) is fixedly connected with a rotating motor (33).

5. The traditional Chinese medicinal material pesticide residue detection device according to claim 1, characterized in that, The positioning mechanism (2) comprises a rotating roller (34) rotatably connected to the inner wall of the machine body (1), a transmission belt (35) is drivenly connected to the rotating roller (34), a baffle (36) is fixedly connected to the inner wall of the machine body (1), the baffle (36) extends above the transmission belt (35), and the rotating roller (34) is driven by a driving motor.

6. The pesticide residue detection device for traditional Chinese medicinal materials according to claim 4, characterized in that, The first limiting rod (29) and the second limiting rod (31) extend to the pushing conical block (22).

7. The traditional Chinese medicinal material pesticide residue detection device according to claim 2, characterized in that, The second sampling pipe (11) is slidably connected with a second contact plate, springs are fixedly connected between the second contact plate and the second sampling pipe (11), a second pawl is hingedly connected to the second contact plate, a second conical block is fixedly connected to one end of the second pawl close to the pushing groove (21), the third sampling pipe (12) is slidably connected with a third contact plate, springs are fixedly connected between the third contact plate and the third sampling pipe (12), a third pawl is hingedly connected to the third contact plate, and a third conical block is fixedly connected to one end of the third pawl close to the pushing groove (21).

8. The traditional Chinese medicinal material pesticide residue detection device according to claim 2, characterized in that, The bottom end of the first rack (4) is flush with the upper surface of the transmission belt (35), the second rack (7) and the first rack (4) are engaged with the connecting gear (5), and the second rack (7) and the first rack (4) are located on the two sides of the connecting gear (5).

9. The traditional Chinese medicinal material pesticide residue detection device according to claim 1, characterized in that, The grabbing mechanism is a mechanical hand structure.

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