Device and method for detecting pesticide residues of agricultural products

Abstract

The invention belongs to the technical field of agricultural product detection, and particularly relates to an agricultural product pesticide residue detection device and method.The agricultural product pesticide residue detection device comprises a material collecting box, a detector, a material conveying barrel, a driving assembly, a cutting assembly and a smashing assembly; the conveying barrel is composed of a feeding hopper and a conveying pipeline, the upper end of the conveying pipeline communicates with the feeding hopper, and the lower end of the conveying pipeline communicates with the collecting box; the rotating shaft is inserted into the conveying barrel, the cutting assembly comprises a plurality of rotating blades and fixed blades, the rotating blades are spirally distributed in the axis direction of the rotating shaft, and the fixed blades are evenly distributed on the inner wall of the feeding hopper; the smashing assembly comprises a grinding disc and a grinding cylinder, the grinding disc is sleeved with the grinding cylinder, the upper end of the grinding disc communicates with the material conveying pipeline, the lower end of the grinding disc communicates with a feeding port of the material collecting box, the lower end of the rotating shaft is fixedly connected with the grinding disc, and a plurality of first grinding teeth are distributed on the inner wall of the grinding cylinder. The device can fully and uniformly crush agricultural products, and ensures the accuracy of pesticide residue detection results of the agricultural products.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural product detection, and particularly relates to a device and method for detecting drug residues in agricultural products. Background Art

[0002] The agricultural product quality and safety inspection center plays a crucial role in ensuring the safety of agricultural products. It is responsible for comprehensively inspecting the quality and safety of agricultural products, including but not limited to pesticide residues, heavy metals, veterinary drug residues, and aquatic product drug residues, etc. Through these inspections, it can ensure that agricultural products meet national and international safety standards, thereby protecting the health of consumers and maintaining fair competition in the market. The detection of drug residues in agricultural products is an important part of the agricultural product quality and safety inspection. It mainly detects the possible pesticide and other chemical drug residues in agricultural products. The inspection center usually adopts various advanced detection technologies, such as gas chromatography, high performance liquid chromatography, etc., to detect the drug residues in agricultural products. These technologies can accurately and quickly identify and quantify the drug residues in agricultural products, thereby helping the inspection center to determine whether the agricultural products are safe. When detecting the drug residues in agricultural products, it is generally necessary to cut and homogenize the agricultural products until they are in a homogeneous state to ensure that the test samples can represent the whole.

[0003] Some existing devices for detecting drug residues in agricultural products, although equipped with a crushing structure, it is difficult to ensure that agricultural products can be fully crushed during use or after long-term use, which affects the detection accuracy. For example, the Chinese patent with the publication number CN116793795B discloses a device for detecting pesticide residues in agricultural products, including a box body. An adaptive crushing mechanism is provided inside the box body. Through the cooperation of the first electromagnet, inclined guide rod, inclined collar, compression spring and elastic support ring, the applicability of the bending angle of the elastic support ring is changed according to the volume of different crops, so as to facilitate the crushing of different volume crops. However, in its application, the way of driving the inclined collar to move and compress the compression spring by the adsorption force of the first electromagnet to make the inclined guide rod move to realize the deformation of the elastic support ring is likely to cause the problem of incomplete reset due to the deflection of the compression spring, resulting in the failure to achieve the expected purpose of controlling the deformation of the elastic support ring, reducing the adaptability to the volume of agricultural products, affecting the crushing uniformity, and leading to low accuracy of the subsequent drug content detection results. Another example is the Chinese patent with the publication number CN220231677U, which discloses a device for detecting pesticide and veterinary drug residues in food. When in use, the food to be detected is initially cut and crushed by a cutting mechanism, and then the crushed food can be further extruded and crushed by a crushing motor, a push rod, a moving frame, a crushing roller, a sliding rod, a guide block, a tooth groove, a driving gear and a moving frame, and the juice in the food is squeezed out and screened out through a sieve. However, the cutting mechanism in this device is horizontally arranged. During the cutting and crushing process, the cutting blade is restricted by the position of the cutting groove, making it easy for small pieces of agricultural products to get stuck in the gap between adjacent cutting blades. And when the crushed agricultural products fall onto the sieve where the crushing roller is located, some crushed materials are likely to fall at positions close to the edge of the box body, resulting in difficulty for the crushing roller to extrude, thus causing incomplete crushing and a relatively reduced amount of collected juice, affecting the accuracy of the drug content detection results. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a device and method for detecting drug residues in agricultural products, which can realize the full and uniform crushing treatment of agricultural products, ensure that the detection samples can more accurately represent the whole, and guarantee the accuracy of the drug content detection results.

[0005] The technical solution of the present invention is as follows:

[0006] A device and method for detecting drug residues in agricultural products, including an aggregate box, a detector and an agricultural product crushing unit arranged on the aggregate box. The agricultural product crushing unit includes:

[0007] A feeding cylinder, the lower end of which is communicated with the feeding port of the aggregate box, and the feeding cylinder is divided into a feeding hopper and a transmission pipeline from top to bottom;

[0008] A driving assembly is mounted above the material collection box, the driving assembly has a vertically arranged rotating shaft, the lower end of the rotating shaft passes through the feed hopper and the transmission pipeline in sequence and extends into the material collection box;

[0009] A segmentation assembly is disposed in the feed hopper, comprising a plurality of staggered rotating blades and fixed blades, wherein the plurality of rotating blades are fixed on a rotating shaft and are spirally distributed along the axis of the rotating shaft, and the plurality of fixed blades are fixed on an inner wall of the feed hopper;

[0010] The crushing assembly is arranged between the transmission pipeline and the aggregate box, and includes a grinding disc and a grinding cylinder. The grinding disc is mounted on the rotating shaft, and the grinding cylinder is mounted on the grinding disc with a grinding gap between the two. The upper end of the grinding cylinder is connected to the transmission pipeline, and the lower end is connected to the feed port of the aggregate box. The inner wall of the grinding cylinder is evenly distributed with a plurality of first grinding teeth along the axial direction, and the spacing of the grinding gap gradually decreases from the feed hopper to one side of the aggregate box.

[0011] Preferably, a plurality of second grinding teeth are evenly distributed on the side wall of the grinding disc, and the second grinding teeth are staggered with the first grinding teeth.

[0012] Preferably, a conveying blade is fixed on the rotating shaft, the conveying blade is arranged in a spiral winding manner along the axial direction of the rotating shaft, and the conveying blade is located in the transmission pipeline, and a plurality of serrated crushing knives are evenly distributed on the spiral blade surface of the conveying blade.

[0013] Preferably, a plurality of cutting blades are spaced apart on the side wall of the rotating shaft located in the transmission pipe, and the plurality of cutting blades are spirally distributed along the rotation direction of the conveying blades.

[0014] Preferably, the pitch of the conveying blades gradually decreases from the feed hopper to the grinding cylinder.

[0015] Preferably, a crushing structure is fixedly connected to the end of the transmission pipe connected to the grinding cylinder, and the crushing structure is formed by interlacing and weaving a plurality of steel wires, and the diameter of the steel wires is 0.3mm-1mm.

[0016] Preferably, the driving assembly further comprises:

[0017] A rotary driver, fixedly connected to the material collecting box via a frame, wherein the rotary driver has an output shaft;

[0018] A first bevel gear, sleeved and fixed on the output shaft;

[0019] A second bevel gear meshes with the first bevel gear, is sleeved on the rotating shaft and is rotatably connected to the frame via a rotating drum;

[0020] Preferably, a chute is formed in the side wall of the rotating shaft along the axial direction, a slider is slidably connected in the chute, the slider is fixedly connected to the inner wall of the second bevel gear, a push plate is fixedly connected to the upper end of the rotating shaft, an eccentric wheel abutting against the push plate is sleeved on the output rotating shaft, a spring is further sleeved on the rotating shaft, one end of the spring is fixedly connected to the machine frame, and the other end is fixedly connected to the rotating shaft through a limiting plate.

[0021] Preferably, the lower end of the rotating shaft passes through the grinding disc and extends into the aggregate box, and a plurality of stirring rods are fixedly connected to the side wall of the rotating shaft in the aggregate box.

[0022] Preferably, the usage method of the above-mentioned agricultural product drug residue detection device includes the following steps:

[0023] Deliver the agricultural products to be detected into the feed hopper;

[0024] Start the driving component to drive the rotating shaft to rotate. The rotation of the rotating shaft drives the rotating blade and the grinding disc to rotate synchronously. When the rotating blade rotates, it cooperates with the fixed blade in the feed hopper to realize the preliminary segmentation of the agricultural products in the feed hopper, forming small pieces and entering the grinding cylinder. When the grinding disc rotates, it performs step-by-step grinding, extrusion and crushing on the agricultural products with the grinding cylinder and the first grinding teeth, realizing the gradual crushing of the small pieces of agricultural products. The qualified crushed agricultural product powder enters the aggregate box in sequence;

[0025] After the crushing is completed, turn on the detector on the side wall of the aggregate box to detect the agricultural products.

[0026] Compared with the prior art, an agricultural product drug residue detection device and method of the present invention have the following beneficial effects:

[0027] When the present device performs the detection of agricultural product drug residues, the driving component provides rotational power for the rotating shaft. At this time, the rotating shaft drives the rotating blade and the grinding disc to rotate synchronously. The rotating blade rotates and cooperates with the fixed blade in the feed hopper to be able to perform preliminary segmentation on the agricultural products to be detected put into the feed hopper. And the spirally arranged rotating blade can generate a rotational motion, so that the material is subjected to multiple impacts, shears and frictions in the feed hopper, thereby improving the crushing efficiency, helping the material to be evenly segmented in the feed hopper, reducing dead angles, and improving the uniformity of crushing. Thus, it is convenient to enter the grinding cylinder in the form of small pieces by crushing in the feed hopper. And the material entering the grinding cylinder utilizes the extrusion and grinding action of the gradually narrowing grinding gap, as well as the step-by-step crushing action formed by the plurality of first grinding teeth and the grinding disc, so that the material can be fully and evenly crushed into a powder state, ensuring that the agricultural products to be detected can be completely and evenly broken into the aggregate box, making the detection sample extracted from the aggregate box can more accurately represent the whole, and ensuring the accuracy of the detection result of the agricultural product drug residue content. Description of the Drawings

[0028] Figure 1 It is a schematic diagram of the overall structure from the first perspective in the embodiment of the present invention;

[0029] Figure 2 It is a schematic diagram of the overall structure from the second perspective in the embodiment of the present invention;

[0030] Figure 3 It is a longitudinal sectional view of the overall structure in the embodiment of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the splitting component in the embodiment of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the crushing component in the embodiment of the present invention;

[0033] Figure 6 It is a schematic diagram of the structure of the spiral conveying blade in the embodiment of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the crushing structure in the embodiment of the present invention;

[0035] Figure 8 is Figure 2 an enlarged schematic diagram of the structure at A in;

[0036] Figure 9 It is a schematic diagram of the structure of the driving component in the embodiment of the present invention;

[0037] Figure 10 It is a schematic diagram of the structure of the second bevel gear in the embodiment of the present invention.

[0038] Description of the Reference Numerals:

[0039] 1, aggregate bin; 2, detector; 3, driving component; 31, rotating shaft; 32, rotating driver; 33, first bevel gear; 34, second bevel gear; 35, drum; 4, splitting component; 41, feed hopper; 42, rotating blade; 43, fixed blade; 5, crushing component; 51, grinding disc; 52, grinding cylinder; 53, first grinding tooth; 54, second grinding tooth; 6, conveying pipeline; 7, conveying blade; 8, crushing knife; 9, cutting blade; 10, crushing structure; 11, chute; 12, slider; 13, push plate; 14, eccentric wheel; 15, spring; 16, stirring rod; 17, frame. Detailed Description of the Invention

[0040] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0043] See Figures 1 to 10 As shown, in order to fully and evenly crush agricultural products, ensure that the test samples can more accurately represent the whole, and guarantee the accuracy of the drug content test results, this embodiment provides a device for detecting drug residues in agricultural products, including a frame 17. A collecting box 1 and a crushing unit for crushing agricultural products are arranged on the frame 17. A detector 2 is arranged on the collecting box 1. Preferably, the detector 2 has a detection sensor or an insertable detection terminal, and the detection sensor and the detection terminal are arranged inside the collecting box 1. The bottom of the collecting box 1 has a discharge pipe, and a valve is arranged on the discharge pipe to facilitate sample extraction. The agricultural product crushing unit includes a feeding cylinder, a driving assembly 3, a dividing assembly 4, and a crushing assembly 5. The feeding cylinder is vertically arranged and is divided into a feeding hopper 41 and a transmission pipeline 6 from top to bottom. The upper end of the transmission pipeline 6 is communicated with the feeding hopper, and the lower end is communicated with a grinding cylinder 52 in the crushing assembly 5. The driving assembly 3 is installed on the upper side of the collecting box 1 through the frame 17, and the driving assembly 3 has a vertically arranged rotating shaft 31. The lower end of the rotating shaft 31 sequentially passes through the feeding hopper 41, the transmission pipeline 6, and the grinding cylinder 52 and extends into the collecting box 1. The dividing assembly 4 includes a plurality of rotating blades 42 and fixed blades 43. The plurality of rotating blades 42 are spirally distributed along the axis direction of the rotating shaft 31. Preferably, the plurality of rotating blades 42 can be continuously spirally arranged or equally spaced spirally arranged. Then, the plurality of fixed blades 43 are evenly distributed on the inner wall of the feeding hopper 41, and the plurality of fixed blades 43 are staggered with the rotating blades 42 in the vertical direction. The crushing assembly 5 includes a conical grinding disc 51 and a cylindrical grinding cylinder 52. The grinding cylinder 52, the grinding disc 51, and the rotating shaft 31 are coaxial. The grinding disc 51 is sleeved and fixed on the rotating shaft 31. The grinding cylinder 52 is sleeved on the grinding disc 51 and there is a grinding gap between them. The upper end of the grinding cylinder 52 is communicated with the transmission pipeline 6, and the lower end is communicated with the feeding port of the collecting box 1. A plurality of first grinding teeth 53 are evenly distributed on the inner wall of the grinding cylinder 52 along the axis direction, and the grinding gap gradually decreases from the feeding hopper 41 to the side of the collecting box 1.

[0044] Specifically, when the device is used for detecting the drug residues in agricultural products, first, the agricultural products to be detected are put into the feed inlet. Then, the driving component 3 is started, so that the driving component 3 provides rotational power for the rotating shaft 31. At this time, the rotating shaft 31 drives the rotating blade 42 and the grinding disc 51 to rotate synchronously. The rotating blade 42 cooperates with the fixed blade 43 in the feed hopper 41 through rotation, which can initially divide the agricultural products and is convenient for cutting agricultural products of different sizes. Moreover, the spiral-arranged rotating blade can generate a rotational motion, so that the material is subjected to multiple impacts, shears and frictions in the feed hopper 41, thereby improving the crushing efficiency, helping the material to be evenly divided in the feed hopper 41, reducing dead corners and improving the uniformity of crushing. As a result, the material is broken into small pieces in the feed hopper 41 and is convenient to enter the grinding cylinder 52. The material entering the grinding cylinder 52 is subjected to the extrusion and grinding action of the gradually narrowing grinding gap, and the stepped crushing action formed by the multiple first grinding teeth 53 and the grinding disc 51, so that the material can be fully and evenly crushed into a powder state, ensuring that the agricultural products to be detected can be completely and evenly broken into the collection box 1, making the detection sample extracted from the collection box 1 more accurately represent the whole, and ensuring the accuracy of the detection result of the drug residue content in the agricultural products.

[0045] See Figure 5 As shown, further, in order to ensure the accuracy of the detection result of the drug residue content in the agricultural products. A plurality of second grinding teeth 54 are evenly distributed on the side wall of the grinding disc 51, and the second grinding teeth 54 are arranged staggered with the first grinding teeth 53. Preferably, the plurality of first grinding teeth 53 can be set as an annular tooth coaxial with the grinding cylinder 52, or can be a plurality of scattered serrated structures evenly distributed on the inner wall of the grinding cylinder 52. In order to ensure the stable downward flow of the material, all the second grinding teeth 54 can be set as serrated structures. Thus, the first grinding teeth 53 and the second grinding teeth 54 driven by the grinding disc 51 can quickly tear and crush the small pieces of agricultural products entering the grinding gap, with a better crushing effect, more refined and uniform crushing, which is convenient for subsequent sample extraction to have a highly accurate overall representativeness and ensure the accuracy of the detection result.

[0046] See Figure 1 、 Figure 3 and Figure 6As shown, further, in order to ensure the accuracy of the detection results of the drug residue content of agricultural products. A conveying blade 7 is arranged in the transmission pipeline 6, and the conveying blade 7 is fixed on the rotating shaft 31, and the conveying blade 7 is distributed in a spiral winding manner along the axial direction of the rotating shaft 31. A plurality of sawtooth crushing knives 8 are evenly distributed on the spiral blade surface of the conveying blade 7, and the pitch of the conveying blade 7 gradually decreases from the feed hopper 41 to the grinding cylinder 52. In addition, a plurality of cutting blades 9 are also arranged at intervals on the side wall of the rotating shaft 31 located in the transmission pipeline 6, and the plurality of cutting blades 9 are distributed in a spiral along the rotation direction of the conveying blade 7. First, the conveying blades 7 form a structure similar to the dragon blades in the conveying pipe 6. The conveying effect of the conveying blades 7 can play a certain pushing effect on the material, so that the material extends the longitudinal thrust when it is input into the grinding gap, which can be more continuous and smooth. Then, during the transmission process, the crushing knife 8 and the cutting knife can be used to further crush and divide the material, so that the material can be crushed more fully before reaching the grinding gap, which is convenient for entering the grinding gap to achieve finer crushing. At the same time, the conveying blades use the gradually decreasing pitch characteristics to enhance the thrust on the material and enable the material to produce a step-by-step crushing effect during the transmission process, thereby achieving a better crushing effect, thereby enabling the material to be fully and evenly crushed, so as to ensure the accuracy of subsequent test results.

[0047] See also Figure 3 , Figure 5 and Figure 7 As shown, further, in order to ensure the accuracy of the detection results of the drug residue content in agricultural products. The end of the transmission pipeline 6 connected to the grinding cylinder 52 is fixedly connected with a crushing structure 10, and the crushing structure 10 is made of a plurality of steel wire ropes interlaced and woven. Generally, in order to improve the cutting effect, the diameter of the steel wire rope is 0.3mm-1mm. In addition, the crushing structure 10 can also be welded with a plurality of staggered dividing blades. When cutting different agricultural products, the crushing structure 10 of different materials or structures can be replaced, and the size of the grid can be changed according to the model. Therefore, when in use, the thrust generated by the conveying blades 7 during the material conveying process is utilized, so that the material can be more finely divided when it contacts the crushing structure 10, so that it is easier and faster to grind and crush, and ensure that the material can be fully and thoroughly crushed and evenly.

[0048] See also Figure 8 and Figure 9As shown in the figure, further, in order to realize the movement of the rotary blade 42, the conveying blade 7 and the grinding disc 51, facilitating the crushing treatment of agricultural product materials. The drive assembly 3 further includes a rotary driver 32, a first bevel gear 33 and a second bevel gear 34. The rotary driver 32 is preferably a servo motor and is fixed on the top wall of the frame 17. The rotary driver 32 has an output rotating shaft; the first bevel gear 33 is sleeved and fixed on the output rotating shaft; the second bevel gear 34 meshes with the first bevel gear 33, and the second bevel gear 34 is rotatably connected to the top wall of the frame 17 through a rotating cylinder 35. Moreover, the upper end of the rotating shaft 31 passes through the top wall of the frame 17, and both the second bevel gear 34 and the rotating cylinder 35 are sleeved on the rotating shaft 31. Starting the rotary driver 32 provides driving force for the first bevel gear 33. Then, by the meshing action of the first bevel gear 33 and the second bevel gear 34, the second bevel gear 34 drives the rotating shaft 31 to rotate, so as to realize that the rotating shaft 31 synchronously drives the rotary blade 42, the conveying blade 7 and the grinding disc 51 to rotate synchronously, realizing the multi-stage crushing treatment of agricultural product materials.

[0049] See Figure 9 and Figure 10 As shown in the figure, further, in order to improve the crushing effect of agricultural product materials and ensure the accuracy of subsequent detection results. A chute 11 is axially formed on the side wall of the rotating shaft 31. A slider 12 is slidably connected in the chute 11. The slider 12 is fixedly connected to the inner wall of the second bevel gear 34. A push plate 13 is fixedly connected to the upper end of the rotating shaft 31. An eccentric wheel 14 abutted against the push plate 13 is sleeved on the output rotating shaft. A spring 15 is also sleeved on the rotating shaft 31. One end of the spring 15 is fixedly connected to the frame 17, and the other end is fixedly connected to the rotating shaft 31 through a limiting plate. During use, first, through the limiting cooperation between the chute 11 on the rotating shaft 31 and the slider 12 on the second bevel gear 34, the horizontal movement of the rotating shaft 31 can be limited, ensuring that the rotating shaft 31 is in a stable rotating state. At the same time, under the combined action of the spring 15, the eccentric wheel 14 rotates to squeeze the push plate 13, enabling the rotating shaft 31 to generate continuous reciprocating motion in the axial direction, that is, under the high-frequency rotation of the rotating shaft 31, continuous vibration effects can be generated, making the material transmission downward smoother. At the same time, under the reciprocating motion of the rotating shaft 31, the material can be crushed more thoroughly and evenly during the crushing process. The whole device plays a vibration effect under the cooperation of the eccentric wheel 14, the spring 15 and the rotating shaft 31, and the crushed material can fully enter the aggregate box 1, reducing the residue of the material, thereby ensuring the accuracy of subsequent detection results.

[0050] See Figure 3 and Figure 5As shown, further, in order to improve the accuracy of the detection results, the lower end of the rotating shaft 31 is designed to pass through the grinding disc 51 and extend into the aggregate bin 1, and a plurality of stirring rods 16 are fixedly connected to the side wall of the rotating shaft 31 inside the aggregate bin 1. Thus, during the rotation of the rotating shaft 31, the materials that have completed the crushing process and entered the aggregate bin 1 can be further stirred evenly, so that the samples extracted during the subsequent detection stage or the samples contacted by the detection terminals can be more representative, improving the accuracy of the detection results.

[0051] For the agricultural product drug residue detection device designed according to the above, its usage method during the detection of the drug residue content in agricultural products includes the following steps:

[0052] Deliver the agricultural products to be detected into the feed hopper 41.

[0053] Start the driving component 3 to drive the rotation of the rotating shaft 31. The rotation of the rotating shaft 31 will drive the synchronous rotation of the rotating blade 42, the conveying blade 7, the grinding disc 51, and the stirring rod 16. The rotating blade 42 rotates in the feed hopper 41 and cooperates with the fixed blade 43 to achieve the preliminary segmentation of the agricultural products, forming small pieces and entering the transmission pipeline 6. At this time, the conveying blade 7 will further crush the small pieces of agricultural products by using the crushing knife 8 and the cutting blade 9 through rotation. Meanwhile, the conveying blade 7 provides a certain longitudinal thrust to the materials through rotation, so that the agricultural products that have been crushed in two stages can smoothly enter the grinding cylinder 52, and before entering the grinding cylinder 52, the materials are further crushed and refined by the crushing structure 10, so that the materials can smoothly enter the grinding gap between the grinding cylinder 52 and the grinding disc 51. After the materials enter the grinding gap, the grinding disc 51 forms a stepped crushing state with the first grinding teeth 53 in the grinding gap through the second grinding teeth 54, gradually finely crushing the materials, and realizing the gradual crushing of the small pieces of agricultural products into qualified fine powder. The qualified crushed agricultural product fine powder enters the aggregate bin 1. And the materials entering the aggregate bin 1 can be more evenly stirred under the stirring of the stirring rod 16.

[0054] After the crushing is completed, open the detector 2 on the side wall of the aggregate bin 1 and directly insert the detection terminal into the aggregate bin 1 for residual drug detection, or extract an appropriate amount of sample through the discharge pipe at the bottom of the aggregate bin 1 for detection. In addition, when it is necessary to dilute the crushed materials with water during the detection, high-pressure water can be injected into the feed hopper 41 during the crushing process. Under the impact of the water flow, the materials can enter the aggregate bin 1 more thoroughly, and are more evenly diluted through the stirring action of the stirring rod 16, ensuring the accuracy of the detection. After the detection, all the remaining materials are discharged through the discharge at the lower side of the aggregate bin 1, and the inside of the device is cleaned by using high-pressure water.

[0055] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. An agricultural product drug residue detection device, comprising an aggregate box (1), a detector (2) provided on the aggregate box (1), and an agricultural product crushing unit, characterized in that, The agricultural product crushing unit includes: A feeding cylinder, the lower end of which is communicated with the feeding port of the aggregate bin (1), and the feeding cylinder is divided into a feeding hopper (41) and a transmission pipeline (6) from top to bottom; A driving assembly (3), erected above the aggregate bin (1), the driving assembly (3) has a vertically arranged rotating shaft (31), and the lower end of the rotating shaft (31) sequentially passes through the feeding hopper (41) and the transmission pipeline (6) and extends into the aggregate bin (1); A dividing assembly (4), arranged in the feeding hopper (41), includes a plurality of rotating blades (42) and fixed blades (43) arranged staggeredly, a plurality of the rotating blades (42) are fixed on the rotating shaft (31), and are spirally distributed along the axis direction of the rotating shaft (31), and a plurality of the fixed blades (43) are fixed on the inner wall of the feeding hopper (41); A crushing assembly (5), arranged between the transmission pipeline (6) and the aggregate bin (1), includes a grinding disc (51) and a grinding cylinder (52), the grinding disc (51) is sleeved on the rotating shaft (31), the grinding cylinder (52) is sleeved on the grinding disc (51) and there is a grinding gap between the two, the upper end of the grinding cylinder (52) is communicated with the transmission pipeline (6), the lower end is communicated with the feeding port of the aggregate bin (1), and a plurality of first grinding teeth (53) are evenly distributed on the inner wall of the grinding cylinder (52) along the axis direction, and the spacing of the grinding gap gradually decreases from the feeding hopper (41) to the side of the aggregate bin (1).

2. The agricultural product drug residue detection device according to claim 1, wherein A plurality of second grinding teeth (54) are also evenly distributed on the side wall of the grinding disc (51), and the second grinding teeth (54) are arranged staggeredly with the first grinding teeth (53).

3. An agricultural product drug residue detection device according to claim 1, characterized in that, A conveying blade (7) is fixed on the rotating shaft (31), the conveying blade (7) is arranged in a spiral winding manner along the axis direction of the rotating shaft (31), and the conveying blade (7) is located in the transmission pipeline (6), and a plurality of serrated crushing blades (8) are evenly distributed on the spiral blade surface of the conveying blade (7).

4. An agricultural product drug residue detection device according to claim 3, characterized in that, A plurality of cutting blades (9) are also spacedly arranged on the side wall of the rotating shaft (31) located in the transmission pipeline (6), and a plurality of the cutting blades (9) are spirally distributed along the rotation direction of the conveying blade (7).

5. The agricultural product drug residue detection device according to claim 3, characterized in that, The pitch of the conveying blade (7) gradually decreases from the feeding hopper (41) to the direction of the grinding cylinder (52).

6. The agricultural product drug residue detection device according to claim 3, characterized in that, A crushing structure (10) is fixedly connected to the end of the transmission pipeline (6) connected to the grinding cylinder (52), the crushing structure (10) is formed by intersecting and weaving a plurality of steel wires, and the diameter of the steel wires is 0.3 mm - 1 mm.

7. An agricultural product drug residue detection device according to claim 1, characterized in that, The driving assembly (3) further includes: A rotary driver (32), fixedly connected to the aggregate bin (1) through a frame (17), and the rotary driver (32) has an output rotating shaft; A first bevel gear (33), sleeved and fixed on the output rotating shaft; A second bevel gear (34), meshing with the first bevel gear (33), sleeved on the rotating shaft (31) and rotatably connected to the frame (17) through a rotating cylinder (35).

8. An agricultural product drug residue detection device according to claim 7, characterized in that, A chute (11) is axially formed on the side wall of the rotating shaft (31). A slider (12) is slidably connected in the chute (11). The slider (12) is fixedly connected to the inner wall of the second bevel gear (34). A push plate (13) is fixedly connected to the upper end of the rotating shaft (31). An eccentric wheel (14) abutted against the push plate (13) is sleeved on the output rotating shaft. A spring (15) is also sleeved on the rotating shaft (31). One end of the spring (15) is fixedly connected to the frame (17), and the other end is fixedly connected to the rotating shaft (31) through a limiting plate.

9. The agricultural product drug residue detection device according to claim 1, characterized in that The lower end of the rotating shaft (31) passes through the grinding disc (51) and extends into the aggregate box (1). A plurality of stirring rods (16) are fixedly connected to the side wall of the rotating shaft (31) inside the aggregate box (1).

10. The usage method of an agricultural product drug residue detection device according to any one of claims 1-9, characterized in that, It includes the following steps: Deliver the agricultural products to be detected into the feed hopper (41); Start the driving assembly (3) to drive the rotating shaft (31) to rotate. The rotation of the rotating shaft (31) drives the rotating blade (42) and the grinding disc (51) to rotate synchronously. When the rotating blade (42) rotates, it cooperates with the fixed blade (43) to initially divide the agricultural products in the feed hopper (41) into small pieces and enter the grinding cylinder (52). When the grinding disc (51) rotates, it performs stepped grinding, extrusion and crushing on the agricultural products with the grinding cylinder (52) and the first grinding teeth (53), so as to gradually crush the small pieces of agricultural products. The crushed qualified agricultural product powder enters the aggregate box (1) in sequence; After the crushing is completed, open the detector (2) on the side wall of the aggregate box (1) to detect the agricultural products.

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