Agricultural product pesticide residue detecting and sampling device

Abstract

The invention discloses an agricultural product pesticide residue detecting and sampling device, and relates to the technical field of agricultural product detecting and sampling devices.The agricultural product pesticide residue detecting and sampling device comprises a smashing box, a smashing mechanism is arranged in the smashing box and used for smashing agricultural products, and the lower portion of the smashing box is fixedly connected with a disintegrating slag collecting box used for receiving the smashed agricultural products; a disintegrating slag collecting box is arranged on one side of the crushing box, a first material conveying pipe is arranged on the lower portion of the disintegrating slag collecting box, an extrusion box is fixedly connected to one side of the crushing box, the side, away from the disintegrating slag collecting box, of the first material conveying pipe is fixedly connected with the extrusion box, and a first material suction pump is arranged at the joint of the first material conveying pipe and the extrusion box. An extrusion plate is driven by a reciprocating mechanism to slide in the extrusion box in a reciprocating manner, so that crushed agricultural products can be repeatedly extruded, crushed agricultural product particles can be more compact, pesticide residues in the stirring barrel in the stirring and mixing process can be effectively extracted, and the uniformity of detection and sampling is improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural product detection and sampling devices, and in particular to an agricultural product pesticide residue detection and sampling device. Background Art

[0002] With the improvement of people's living standards and the enhancement of health awareness, food safety issues have received increasing public attention. As an important part of people's daily diet, the quality and safety of agricultural products are directly related to the physical health and life safety of the people. Therefore, strict pesticide residue testing of agricultural products is one of the important measures to ensure food safety. Pesticides are widely used in agricultural production to prevent and control pests and diseases and increase crop yields. However, excessive or improper use of pesticides can lead to pesticide residue problems. These residual pesticides may enter the human body through the food chain, posing a potential threat to human health, such as causing poisoning, carcinogenesis, teratogenesis and other serious consequences.

[0003] After searching, the Chinese patent number CN219798807U discloses a sampling device for detecting pesticide residues in agricultural products, which belongs to the technical field of agricultural product detection sampling equipment, and aims to solve the problem that the existing agricultural product detection sampling device needs to be weighed before use, which has a large workload and is inconvenient to control the same amount of detection samples. The device comprises a crushing box, the bottom of which is connected to the sampling box through a connecting frame, the interior of the sampling box is connected to the interior of the crushing box, and the sides of the sampling box are respectively provided with a liquid injection port and a sampling port, an inner barrel is slidingly arranged in the crushing box, a crushing mechanism is arranged in the inner barrel, a movable rod is arranged on the top of the inner barrel, and the movable rod passes through the top of the crushing box and is connected to a pressure ring; a leak plate is arranged below the crushing mechanism in the inner barrel, and a storage cavity is formed between the leak plate and the inner barrel, sealing plates are hinged on both sides of the connecting frame, and the two sealing plates form a sealing door to block the leak at the bottom of the inner barrel, and a torsion spring is arranged at the hinge between the sealing plate and the connecting frame.

[0004] However, in the actual use of the above patent, it is difficult to make the crushed sample particles more compact and to improve the uniformity of the sample. If the crushed sample is directly mixed with a buffer solution, there may still be uneven distribution of particles, which may make it difficult to effectively extract some pesticide residues during the stirring and mixing process. Therefore, it is necessary to propose a sampling device for detecting pesticide residues in agricultural products. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that it is difficult to make the particles of the crushed sample more compact and to improve the uniformity of the sample. When the crushed sample is directly mixed with a buffer solution, there may still be uneven particle distribution, which may make it difficult to effectively extract some pesticide residues during the stirring and mixing process. A sampling device for detecting pesticide residues in agricultural products is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A sampling device for detecting pesticide residues in agricultural products comprises a crushing box, wherein a crushing mechanism is arranged inside the crushing box, wherein the crushing mechanism is used to crush the agricultural products, wherein a debris collection box for receiving the crushed agricultural products is fixedly connected to the lower part of the crushing box, wherein a first feeding pipe is arranged at the lower part of the debris collection box, wherein an extrusion box is fixedly connected to one side of the crushing box, wherein a side of the first feeding pipe away from the debris collection box is fixedly connected to the extrusion box, wherein a first suction pump is arranged at the connection between the first feeding pipe and the extrusion box, wherein an extrusion plate for extruding the crushed agricultural products is slidably connected to the inside of the extrusion box, A reciprocating mechanism is provided on one side of the crushing box close to the extrusion box, and the reciprocating mechanism is used to control the extrusion plate to reciprocate and extrude the crushed agricultural products inside the extrusion box. A second feeding pipe is provided at the lower part of the extrusion box, and a second suction pump is provided at the connection between the extrusion box and the second feeding pipe. A stirring barrel for receiving the crushed agricultural products after extrusion and stirring the inside is provided on one side of the second feeding pipe away from the extrusion box, and a buffer addition port for adding a buffer to be mixed with the agricultural products is provided on one side of the stirring barrel, and a sampling port for sampling is provided on the side of the stirring barrel close to the buffer addition port;

[0008] The stirring barrel can evenly mix the added buffer with the crushed and squeezed agricultural products.

[0009] The above technical solution further includes:

[0010] The reciprocating mechanism includes a fourth rotating shaft arranged on one side of the crushing box, the fourth rotating shaft is rotatably connected to the crushing box, a rotating frame is fixedly connected to the side of the fourth rotating shaft away from the crushing box, the rotating frame is rotatably connected to a fixing ring, and the fixing ring is fixedly connected to the crushing box.

[0011] The edge of the rotating frame is rotatably connected to a first rotating shaft, the first rotating shaft is fixedly connected to a first gear, the first gear is meshingly connected to an annular rack, and the annular rack is fixedly connected to a fixed ring.

[0012] The first rotating shaft is fixedly connected to a first connecting plate, a side of the first connecting plate away from the first rotating shaft is rotatably connected to a second connecting plate, and a side of the second connecting plate away from the first connecting plate is fixedly connected to a sliding rod.

[0013] The sliding rod is slidably connected to the fixed ring, the sliding rod passes through the extrusion box and extends to the inside of the extrusion box, the sliding rod is slidably connected to the extrusion box, and the side of the sliding rod away from the second connecting plate is fixedly connected to the extrusion plate.

[0014] The pulverizing device comprises a third rotating shaft arranged inside the pulverizing box, the third rotating shaft is rotatably connected to the pulverizing box, and the third rotating shaft penetrates the pulverizing box and extends to both sides of the pulverizing box.

[0015] The third rotating shaft is fixedly connected to a plurality of second crushing knives for crushing agricultural products, and the third rotating shaft is fixedly connected to a second gear.

[0016] The second gear is meshedly connected with the third gear, the third gear is fixedly connected with the second rotating shaft, the second rotating shaft is rotationally connected to the crushing box, and the second rotating shaft is fixedly connected with a plurality of first crushing knives for crushing agricultural products.

[0017] A plurality of guide plates for guiding agricultural products are fixedly connected to the inside of the crushing box, and a motor for controlling the rotation of the third rotating shaft is fixedly installed on one side of the crushing box close to the second gear;

[0018] The guide plate facilitates the feeding of the added agricultural products into the space between the second crushing knife and the first crushing knife for crushing.

[0019] The third rotating shaft is transmission-connected with a belt, and the belt is transmission-connected to the fourth rotating shaft.

[0020] The present invention has the following beneficial effects:

[0021] 1. In the present invention, the agricultural products are placed in the crushing box, and the agricultural products are sent between the first crushing knife and the second crushing knife through the function of the guide plate, so as to facilitate the crushing of the agricultural products and preliminarily improve the uniformity during the detection and sampling.

[0022] 2. In the present invention, the crushed agricultural products are fed into the extrusion box, and the extrusion plate is driven by the reciprocating mechanism to slide back and forth inside the extrusion box, so that the crushed agricultural products can be repeatedly extruded, which makes the crushed agricultural product particles more compact, so that the pesticide residues can be effectively extracted during the stirring and mixing process inside the stirring barrel, thereby improving the uniformity of detection sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a sampling device for detecting pesticide residues in agricultural products proposed by the present invention;

[0024] Figure 2 It is a schematic diagram of the first structure in the present invention;

[0025] Figure 3 It is a second structural schematic diagram of the present invention;

[0026] Figure 4 It is a schematic diagram of the third structure of the present invention;

[0027] Figure 5 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0028] Figure 6 for Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0029] Figure 7 for Figure 3 Enlarged schematic diagram of the structure at point C in the middle.

[0030] In the figure: 1. crushing box; 2. debris collection box; 3. first feed pipe; 4. extrusion box; 5. stirring barrel; 6. first suction pump; 7. buffer addition port; 8. sampling port; 9. fixing ring; 10. sliding rod; 11. guide plate; 12. extrusion plate; 13. annular rack; 14. first gear; 15. first rotating shaft; 16. first connecting plate; 17. second connecting plate; 18. first crushing knife; 19. second suction pump; 20. second feed pipe; 21. motor; 22. second gear; 23. third gear; 24. second rotating shaft; 25. third rotating shaft; 26. belt; 27. fourth rotating shaft; 28. rotating frame; 29. ​​second crushing knife. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] like Figure 1 - Figure 7As shown, a sampling device for detecting pesticide residues in agricultural products comprises a crushing box 1, wherein a crushing mechanism is arranged inside the crushing box 1, and the crushing mechanism is used to crush the agricultural products, and a debris collection box 2 for receiving the crushed agricultural products is fixedly connected to the lower part of the crushing box 1, and a first feeding pipe 3 is arranged at the lower part of the debris collection box 2, and an extrusion box 4 is fixedly connected to one side of the crushing box 1, and a side of the first feeding pipe 3 away from the debris collection box 2 is fixedly connected to the extrusion box 4, and a first suction pump 6 is arranged at the connection between the first feeding pipe 3 and the extrusion box 4, and an extrusion plate 12 for extruding the crushed agricultural products is slidably connected inside the extrusion box 4, and the crushing box 4 is provided with a plurality of feeding pipes 3, 4 and 6. A reciprocating mechanism is provided on one side of the box 1 close to the extrusion box 4, and the reciprocating mechanism is used to control the extrusion plate 12 to reciprocate and extrude the crushed agricultural products inside the extrusion box 4. A second feeding pipe 20 is provided at the lower part of the extrusion box 4, and a second suction pump 19 is provided at the connection between the extrusion box 4 and the second feeding pipe 20. A stirring barrel 5 for receiving the crushed agricultural products after extrusion and stirring the inside is provided on the side of the second feeding pipe 20 away from the extrusion box 4, and a buffer addition port 7 for adding a buffer to be mixed with the agricultural products is provided on one side of the stirring barrel 5, and a sampling port 8 for sampling is provided on the side of the stirring barrel 5 close to the buffer addition port 7;

[0034] The reciprocating mechanism includes a fourth rotating shaft 27 arranged on one side of the crushing box 1, the fourth rotating shaft 27 is rotatably connected to the crushing box 1, a rotating frame 28 is fixedly connected to the side of the fourth rotating shaft 27 away from the crushing box 1, the rotating frame 28 is rotatably connected to the fixing ring 9, and the fixing ring 9 is fixedly connected to the crushing box 1;

[0035] The edge of the rotating frame 28 is rotatably connected to the first rotating shaft 15, the first rotating shaft 15 is fixedly connected to the first gear 14, the first gear 14 is meshedly connected to the annular rack 13, and the annular rack 13 is fixedly connected to the fixed ring 9;

[0036] The first rotating shaft 15 is fixedly connected to a first connecting plate 16, a side of the first connecting plate 16 away from the first rotating shaft 15 is rotatably connected to a second connecting plate 17, and a side of the second connecting plate 17 away from the first connecting plate 16 is fixedly connected to a sliding rod 10;

[0037] The sliding rod 10 is slidably connected to the fixing ring 9 , the sliding rod 10 passes through the extrusion box 4 and extends to the inside of the extrusion box 4 , the sliding rod 10 is slidably connected to the extrusion box 4 , and the side of the sliding rod 10 away from the second connecting plate 17 is fixedly connected to the extrusion plate 12 .

[0038] In this embodiment, when in use, the agricultural product sample is placed and added to the inside of the crushing box 1, and the crushing mechanism inside the crushing box 1 crushes the sample agricultural product, and the crushed agricultural product will fall into the inside of the debris collection box 2. At this time, starting the first suction pump 6 will make the crushed agricultural product inside the debris collection box 2 enter the inside of the extrusion box 4 through the first feed pipe 3. At this time, when the fourth rotating shaft 27 rotates, it will drive the fixedly connected rotating frame 28 to rotate, and the rotation of the rotating frame 28 will drive the first rotating shaft 15 connected to the edge to rotate in a circular manner, and the first rotating shaft 15 will cause the fixedly connected first gear 14 to rotate in a circular manner;

[0039] The annular rack 13 meshing with the first gear 14 is fixedly connected to the fixed ring 9, and the fixed ring 9 is fixedly connected to the crushing box 1, that is, the first gear 14 rotates in a circle while rotating under the action of the annular rack 13, and the annular rack 13 drives the first rotating shaft 15 to rotate, and the rotation of the first rotating shaft 15 causes the fixedly connected first connecting plate 16 to rotate, and the first connecting plate 16 causes the rotatably connected second connecting plate 17 to remain stable when sliding on the fixed ring 9, and the sliding of the sliding rod 10 drives the lower fixedly connected extrusion plate 12 to slide inside the extrusion box 4, that is, the crushed agricultural products inside the extrusion box 4 can be squeezed, so that the crushed agricultural product particles are more compact, the gaps between the particles are reduced, and the uniformity of the crushed agricultural product samples is improved;

[0040] After the extrusion is completed, the second suction pump 19 is started to allow the agricultural products after the extrusion to enter the interior of the stirring barrel 5 through the second delivery pipe 20. At this time, the buffer solution that needs to be mixed with the agricultural products is added to the stirring barrel 5 through the buffer solution adding port 7 set on one side of the stirring barrel 5. The buffer solution and the agricultural product sample inside are then stirred and mixed evenly through the stirring barrel 5, so that the pesticide residues can be effectively extracted, and finally sampling can be carried out through the sampling port 8.

[0041] Embodiment 2

[0042] like Figure 1 - Figure 7 As shown, the pulverizing device includes a third rotating shaft 25 disposed inside the pulverizing box 1. The third rotating shaft 25 is rotatably connected to the pulverizing box 1. The third rotating shaft 25 penetrates the pulverizing box 1 and extends to both sides of the pulverizing box 1.

[0043] The third rotating shaft 25 is fixedly connected to a plurality of second crushing knives 29 for crushing agricultural products, and the third rotating shaft 25 is fixedly connected to a second gear 22;

[0044] The second gear 22 is meshedly connected with the third gear 23, the third gear 23 is fixedly connected with the second rotating shaft 24, the second rotating shaft 24 is rotatably connected to the crushing box 1, and the second rotating shaft 24 is fixedly connected with a plurality of first crushing knives 18 for crushing agricultural products;

[0045] A plurality of guide plates 11 for guiding agricultural products are fixedly connected inside the crushing box 1, and a motor 21 for controlling the rotation of the third rotating shaft 25 is fixedly installed on one side of the crushing box 1 close to the second gear 22;

[0046] The third rotating shaft 25 is in transmission connection with a belt 26 , and the belt 26 is in transmission connection with the fourth rotating shaft 27 .

[0047] In this embodiment, when the agricultural product sample needs to be crushed, the motor 21 is started to rotate the third rotating shaft 25 set at its output end. The rotation of the third rotating shaft 25 will drive the multiple second crushing knives 29 fixedly connected to rotate. At the same time, the third rotating shaft 25 will also cause the fixedly connected second gear 22 to rotate. The rotation of the second gear 22 will cause the meshing third gear 23 to rotate. The third gear 23 will drive the first crushing knife 18 to rotate through the second rotating shaft 24. At this time, the agricultural product sample is placed in the crushing box 1. Under the action of the guide plates 11 set on both sides of the crushing box 1, the agricultural product sample is sent between the first crushing knife 18 and the second crushing knife 29, which is convenient for crushing the agricultural product sample. The rotation of the third rotating shaft 25 will also drive the fourth rotating shaft 27 to rotate through the transmission connected belt 26, so that the reciprocating mechanism can operate simultaneously.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for detecting pesticide residues in agricultural products, comprising a crushing box (1), characterized in that: The crushing box (1) is provided with a crushing mechanism inside, and the crushing mechanism is used to crush the agricultural products. The lower part of the crushing box (1) is fixedly connected to a debris collection box (2) for receiving the crushed agricultural products. The lower part of the debris collection box (2) is provided with a first feed pipe (3). One side of the crushing box (1) is fixedly connected to an extrusion box (4). The side of the first feed pipe (3) away from the debris collection box (2) is fixedly connected to the extrusion box (4). A first suction pump (6) is provided at the connection between the first feed pipe (3) and the extrusion box (4). The interior of the extrusion box (4) is slidably connected to an extrusion plate (12) for extruding the crushed agricultural products. The crushing box (1) is close to the extrusion box (4). A reciprocating mechanism is provided on one side of the extrusion box (4), the reciprocating mechanism is used to control the extrusion plate (12) to reciprocate and extrude the crushed agricultural products inside the extrusion box (4), a second feed pipe (20) is provided at the lower part of the extrusion box (4), a second suction pump (19) is provided at the connection between the extrusion box (4) and the second feed pipe (20), a stirring barrel (5) is provided on the side of the second feed pipe (20) away from the extrusion box (4) for receiving the crushed agricultural products after extrusion and stirring the inside, a buffer addition port (7) is provided on one side of the stirring barrel (5) for adding a buffer to be mixed with the agricultural products, and a sampling port (8) is provided on the side of the stirring barrel (5) close to the buffer addition port (7) for sampling.

2. The agricultural product pesticide residue detection sampling device according to claim 1, characterized in that: The reciprocating mechanism comprises a fourth rotating shaft (27) arranged on one side of the crushing box (1), the fourth rotating shaft (27) being rotatably connected to the crushing box (1), a rotating frame (28) being fixedly connected to the side of the fourth rotating shaft (27) away from the crushing box (1), the rotating frame (28) being rotatably connected to a fixing ring (9), and the fixing ring (9) being fixedly connected to the crushing box (1).

3. The agricultural product pesticide residue detection sampling device according to claim 2, characterized in that: The edge of the rotating frame (28) is rotatably connected to a first rotating shaft (15), the first rotating shaft (15) is fixedly connected to a first gear (14), the first gear (14) is meshingly connected to an annular rack (13), and the annular rack (13) is fixedly connected to a fixing ring (9).

4. The agricultural product pesticide residue detection sampling device according to claim 3, characterized in that: The first rotating shaft (15) is fixedly connected to a first connecting plate (16); a side of the first connecting plate (16) away from the first rotating shaft (15) is rotatably connected to a second connecting plate (17); a side of the second connecting plate (17) away from the first connecting plate (16) is fixedly connected to a sliding rod (10).

5. The agricultural product pesticide residue detection sampling device according to claim 4, characterized in that: The sliding rod (10) is slidably connected to the fixing ring (9), the sliding rod (10) passes through the extrusion box (4) and extends into the interior of the extrusion box (4), the sliding rod (10) is slidably connected to the extrusion box (4), and the side of the sliding rod (10) away from the second connecting plate (17) is fixedly connected to the extrusion plate (12).

6. The agricultural product pesticide residue detection sampling device according to claim 1, characterized in that: The pulverizing device comprises a third rotating shaft (25) arranged inside the pulverizing box (1), the third rotating shaft (25) being rotatably connected to the pulverizing box (1), and the third rotating shaft (25) passing through the pulverizing box (1) and extending to both sides of the pulverizing box (1).

7. The agricultural product pesticide residue detection sampling device according to claim 6, characterized in that: The third rotating shaft (25) is fixedly connected to a plurality of second crushing knives (29) for crushing agricultural products, and the third rotating shaft (25) is fixedly connected to a second gear (22).

8. The agricultural product pesticide residue detection sampling device according to claim 7, characterized in that: The second gear (22) is meshedly connected with a third gear (23), the third gear (23) is fixedly connected with a second rotating shaft (24), the second rotating shaft (24) is rotationally connected to the crushing box (1), and the second rotating shaft (24) is fixedly connected with a plurality of first crushing knives (18) for crushing agricultural products.

9. The agricultural product pesticide residue detection sampling device according to claim 1, characterized in that: A plurality of guide plates (11) for guiding agricultural products are fixedly connected inside the crushing box (1), and a motor (21) for controlling the rotation of the third rotating shaft (25) is fixedly installed on one side of the crushing box (1) close to the second gear (22).

10. The agricultural product pesticide residue detection sampling device according to claim 6, characterized in that: The third rotating shaft (25) is transmission-connected with a belt (26), and the belt (26) is transmission-connected with the fourth rotating shaft (27).

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