Sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products

Abstract

The utility model relates to the technical field of vegetables and fruits, and discloses a sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products, which comprises a workbench, the rear side of the top of the workbench is fixedly connected with a square box, the interior of the square box is fixedly connected with a driving assembly, and the exterior of the driving assembly is in threaded connection with a sliding plate. A cover body is fixedly connected to the front side of the sliding plate, a second motor is fixedly connected to the top of the cover body, a first rotating shaft is fixedly connected to the driving end of the second motor, a plurality of hollow rings are detachably connected to the outer portion of the first rotating shaft, and a plurality of blades are fixedly connected to the outer portions of the hollow rings; and a cavity is formed in the front side of the hollow ring. According to the utility model, the disassembly of the crushing cutter group is realized, so that people can conveniently clean the cutter group, cross contamination among different samples is prevented, and the accuracy and reliability of the samples are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vegetables and fruits, in particular to a sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products. Background Art

[0002] Testing vegetables and fruits refers to testing vegetables and fruits to determine whether they contain harmful substances such as pesticide residues or whether they meet food safety standards. When it is necessary to monitor and detect pesticide residues in vegetables, fruits and other agricultural products, sample preparation devices will be used to extract pesticide residues from samples and send them to analytical instruments for quantitative analysis.

[0003] After searching, the Chinese patent document announcement number: CN218121550U discloses a sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products, including a workbench and a frame arranged on the top of the workbench, a detection box is arranged on the top of the workbench, a liquid collecting chamber is opened inside the detection box, a motor is connected to the top of the frame, a stirring rod is arranged at the output end of the motor, and a crushing knife is arranged on the surface of the stirring rod; the vegetable and fruit agricultural products of the utility model are liquid after being crushed, and the crushing knife is convenient for crushing the vegetable and fruit agricultural products, so that the vegetable and fruit agricultural products become liquid and fruit cores, which is convenient to use and simpler to operate; the position of the liquid inlet is flush with the connecting hole, and the liquid will flow from the connecting hole and the liquid inlet at different heights to the liquid storage tank, and liquids of different heights will be obtained. When collecting pesticide residues in vegetable and fruit agricultural products, the operation is simple and easy to operate.

[0004] The beneficial effects of the above patent specification mention that "the output end of the motor will drive the stirring rod to rotate, and the stirring rod will drive the crushing knife to rotate, and the crushing knife will crush the vegetables, fruits and agricultural products in the liquid collection chamber, so that the vegetables, fruits and agricultural products are liquid after being crushed. The crushing knife is convenient for crushing the vegetables, fruits and agricultural products, so that the vegetables, fruits and agricultural products become liquid and fruit cores, which are convenient to use and simpler to operate." Although the above patent can solve the problem of vegetables, fruits and agricultural products becoming liquids and fruit cores, some crushing knife groups in the prior art are connected by bolts and nuts, which makes the knife groups difficult to disassemble and very difficult to clean, which can easily lead to cross-contamination between different samples, affecting the accuracy and reliability of the samples. The knife group is easy to break and difficult to disassemble, which will lead to frequent replacement or repair of the knife group, thereby increasing the maintenance cost of the equipment. Therefore, in view of the above shortcomings, a sample preparation device for detecting pesticide residues in vegetables, fruits and agricultural products is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products, aiming to improve the problem that some knife groups in the prior art are difficult to disassemble and clean.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products, comprising a workbench, a square box is fixedly connected to the top rear side of the workbench, a driving assembly is fixedly connected to the inside of the square box, a sliding plate is threadedly connected to the outside of the driving assembly, a cover is fixedly connected to the front side of the sliding plate, a motor 2 is fixedly connected to the top of the cover, a rotating shaft 1 is fixedly connected to the driving end of the motor 2, a plurality of hollow rings are detachably connected to the outside of the rotating shaft 1, a plurality of blades are fixedly connected to the outside of the hollow rings, a cavity is provided inside the front side of the hollow ring, a spring 1 is fixedly connected to the front inner wall of the cavity, a connecting block is fixedly connected to the rear side of the spring 1, a pull rod is fixedly connected to the left side of the connecting block, grooves are provided on the upper and lower sides of the rotating shaft 1, a connecting plate is fixedly connected to the upper and lower sides of the right part of the rotating shaft 1, a plurality of wall scraping assemblies are fixedly connected to the right side of the connecting plates, a fixing assembly is fixedly connected to the right inner wall of the workbench, and a crushing barrel is provided on the top of the workbench;

[0008] As a further description of the above technical solution:

[0009] The driving assembly includes a motor 1, a driving end of the motor 1 is fixedly connected to a threaded rod, an outer thread of the threaded rod is connected to the inner rear side of the sliding plate, and an outer portion of the sliding plate is slidably connected to the inner wall of the square box;

[0010] As a further description of the above technical solution:

[0011] The scraper assembly comprises a square block, an inner cavity is opened inside the right side of the square block, a square plate is slidably connected to the inner wall of the inner cavity, a fixed column is fixedly connected to the upper and lower sides of the left part of the square plate, a rotating column is rotatably connected to the left side of the fixed column, a sliding column is rotatably connected to the left side of the rotating column, two springs are respectively fixedly connected to the adjacent sides of the two sliding columns, and a scraper is fixedly connected to the right side of the square plate;

[0012] As a further description of the above technical solution:

[0013] The fixing assembly includes an electric push rod, the upper and lower sides of the workbench are internally rotatably connected with a rotating shaft 2, the outside of the rotating shaft 2 is fixedly connected with a rotating plate 1, the left and right sides of the rotating plate 1 are both rotatably connected with rotating plates 2, and the two sides of the rotating plates 2 that are far away are respectively rotatably connected with square slides, the top of the workbench is provided with square openings on the left and right sides, the inside of the square openings is slidably connected with a sliding block, the top of the sliding block is fixedly connected with a clamping plate, and the driving end of the electric push rod is fixedly connected to the right side of the square slide on the right side;

[0014] As a further description of the above technical solution:

[0015] The bottom of the workbench is provided with long strip openings on both sides, the inner wall of the long strip opening is slidably connected with a long strip block, and the bottom of the square slide is fixedly connected to the top of the long strip block;

[0016] As a further description of the above technical solution:

[0017] The bottom of the clamping plate is slidably connected to the left and right sides of the top of the workbench, and the outer side of the square sliding plate is slidably connected to the left and right sides of the inner side of the workbench;

[0018] As a further description of the above technical solution:

[0019] The outside of the scraper is in contact with the inner wall of the crushing barrel, and the outside of the sliding column is slidably connected to the upper and lower sides of the inside of the square block;

[0020] As a further description of the above technical solution:

[0021] The outside of the connection block is slidably connected to the inner wall of the cavity, the outside of the pull rod is slidably connected to the inside of the front side of the hollow ring, and the outside of the connection block is engaged with the inner wall of the groove.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the disassembly of the crushing knife group is realized through the mutual cooperation of the hollow ring, the blade, the spring, the connecting block, the pull rod and other structures, which makes it convenient for people to clean the knife group, prevents cross contamination between different samples, and improves the accuracy and reliability of the samples.

[0024] 2. In the utility model, by the cooperation of the square block, the square plate, the fixed column, the rotating column, the sliding column, the spring 2, the scraper and other structures, the wall of the crushing barrel is scraped, and then the pesticide residues remaining on the inner wall of the sample container can be effectively extracted, so that the pesticide residues in the sample can be fully extracted, and the extraction efficiency is improved.

[0025] 3. In the utility model, the crushing barrel is fixed by the mutual cooperation of the electric push rod, the second rotating shaft, the first rotating plate, the second rotating plate, the square slide plate, the sliding block, the clamping plate and other structures, thereby ensuring that the crushing barrel remains stable during the operation of the equipment, reducing the risk of accidental movement or tilting, thereby improving the safety of operators and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a stereoscopic diagram of a sample preparation device for detecting pesticide residues in vegetable, fruit and agricultural products proposed by the utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of a crushing barrel of a sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products proposed by the utility model;

[0028] Figure 3 This is a schematic diagram of the internal structure of a hollow ring of a sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products proposed by the utility model;

[0029] Figure 4 This is a schematic diagram of the square block structure of a sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products proposed by the utility model;

[0030] Figure 5 for Figure 4 A in the enlarged view;

[0031] Figure 6 The utility model discloses a schematic diagram of the internal structure of a working table of a sample preparation device for detecting pesticide residues in vegetable, fruit and agricultural products.

[0032] Legend:

[0033] 1. Workbench; 2. Square box; 3. Motor 1; 4. Threaded rod; 5. Sliding plate; 6. Cover; 7. Motor 2; 8. Rotating shaft 1; 9. Hollow ring; 10. Blade; 11. Cavity; 12. Spring 1; 13. Connecting block; 14. Pull rod; 15. Groove; 16. Connecting plate; 17. Square block; 18. Inner cavity; 19. Square plate; 20. Fixed column; 21. Rotating column; 22. Sliding column; 23. Spring 2; 24. Scraper; 25. Crushing barrel; 26. Electric push rod; 27. Rotating shaft 2; 28. Rotating plate 1; 29. ​​Rotating plate 2; 30. Square slide plate; 31. Square opening; 32. Sliding block; 33. Clamp; 34. Long strip mouth; 35. Long strip block. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Reference Figures 1 to 3 The utility model provides an embodiment: a sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products, comprising a workbench 1, a square box 2 is fixedly connected to the top and rear side of the workbench 1, a driving assembly is fixedly connected to the inside of the square box 2, a sliding plate 5 is threadedly connected to the outside of the driving assembly, a cover 6 is fixedly connected to the front side of the sliding plate 5, a motor 2 is fixedly connected to the top of the cover 6, a rotating shaft 1 8 is fixedly connected to the driving end of the motor 2 7, the motor 2 7 drives the rotating shaft 1 8 to rotate, a plurality of hollow rings 9 are detachably connected to the outside of the rotating shaft 1 8, a plurality of blades 10 are fixedly connected to the outside of the hollow rings 9, a cavity 11 is opened inside the front side of the hollow rings 9, a spring 12 is fixedly connected to the front inner wall of the cavity 11, a connecting block 13 is fixedly connected to the rear side of the spring 12, and the connecting block 13 It drives the compression of spring 12, and the left side of the connecting block 13 is fixedly connected with a pull rod 14, which drives the sliding of the connecting block 13. Grooves 15 are provided on the upper and lower sides of the interior of the rotating shaft 8, which realizes the disassembly of the crushing knife group, and then facilitates people to clean the knife group, prevents cross contamination between different samples, and improves the accuracy and reliability of the samples. The upper and lower sides of the right part of the rotating shaft 8 are fixedly connected with connecting plates 16, and the right sides of multiple connecting plates 16 are fixedly connected with scraping components. The right inner wall of the workbench 1 is fixedly connected with a fixing component, and a crushing barrel 25 is arranged on the top of the workbench 1. The outside of the connecting block 13 is slidably connected to the inner wall of the cavity 11, and the outside of the pull rod 14 is slidably connected to the front side of the hollow ring 9. The outside of the connecting block 13 is engaged with the inner wall of the groove 15.

[0036] The driving assembly includes a motor 3, a driving end of the motor 3 is fixedly connected to a threaded rod 4, the motor 3 drives the threaded rod 4 to rotate, the external thread of the threaded rod 4 is connected to the inside of the rear side of the sliding plate 5, the threaded rod 4 drives the movement of the sliding plate 5, and the external sliding of the sliding plate 5 is connected to the inner wall of the square box 2, thereby improving the stability of the sliding plate 5.

[0037] Reference Figure 2 , Figure 4 , Figure 5The scraping assembly includes a square block 17, an inner cavity 18 is opened inside the right side of the square block 17, and a square plate 19 is slidably connected to the inner wall of the inner cavity 18. The upper and lower sides of the left part of the square plate 19 are fixedly connected to fixed columns 20. The square plate 19 drives the movement of the fixed column 20. The left side of the fixed column 20 is rotatably connected to a rotating column 21. The fixed column 20 drives the rotation of the rotating column 21. The left side of the rotating column 21 is rotatably connected to a sliding column 22. The rotating column 21 drives the movement of the sliding column 22. The adjacent sides of the two sliding columns 22 are divided A spring 23 is fixedly connected to the square plate 19, and the sliding column 22 drives the compression of the spring 23. A scraper 24 is fixedly connected to the right side of the square plate 19, and the outside of the scraper 24 contacts the inner wall of the crushing barrel 25. The crushing barrel 25 drives the sliding of the square plate 19. The outside of the sliding column 22 is slidably connected to the upper and lower sides of the inside of the square block 17, thereby scraping the wall of the crushing barrel 25, and then the pesticide residues remaining on the inner wall of the sample container can be effectively extracted, so that the pesticide residues in the sample can be fully extracted, thereby improving the extraction efficiency.

[0038] Reference Figure 1 , Figure 6 The fixed component includes an electric push rod 26. The upper and lower sides of the workbench 1 are internally rotatably connected with a rotating shaft 27. The outside of the rotating shaft 27 is fixedly connected with a rotating plate 1 28. The rotating plate 1 28 drives the rotation of the rotating shaft 27. The left and right sides of the rotating plate 1 28 are rotatably connected with rotating plates 29. The rotating plate 29 drives the rotation of the rotating plate 1 28. The far sides of the two rotating plates 29 are respectively rotatably connected with square slide plates 30. The square slide plates 30 drive the rotation of the rotating plates 29. The top of the workbench 1 is provided with square openings 31 on both sides. The square opening 31 is internally slidably connected with a sliding block 32, and the square slide 30 drives the movement of the sliding block 32. The top of the sliding block 32 is fixedly connected with a clamping plate 33, and the sliding block 32 drives the sliding of the clamping plate 33. The driving end of the electric push rod 26 is fixedly connected to the right side of the right square slide 30. The electric push rod 26 drives the square slide 30 to slide, thereby fixing the crushing barrel 25, and then ensuring that the crushing barrel 25 remains stable during the operation of the equipment, reducing the risk of accidental movement or tilting, thereby improving the safety of operators and equipment.

[0039] The left and right sides of the bottom of the workbench 1 are provided with long strip openings 34, and the inner walls of the long strip openings 34 are slidably connected with long strip blocks 35. The bottom of the square slide 30 is fixedly connected to the top of the long strip block 35. The square slide 30 drives the long strip block 35 to move, thereby improving the stability of the splint 33. The bottom of the splint 33 is slidably connected to the left and right sides of the top of the workbench 1, thereby improving the stability of the square slide 30. The outside of the square slide 30 is slidably connected to the left and right sides of the inside of the workbench 1, thereby improving the stability of the square slide 30.

[0040] Working principle: when the crushing knife group needs to be disassembled, first start the motor 3, so that the motor 3 drives the threaded rod 4 to rotate, and the threaded rod 4 drives the sliding plate 5 to move, so that the sliding plate 5 drives the cover body 6 to move. At this time, the cover body 6 will be separated from the crushing barrel 25, and then pull the pull rod 14, so that the pull rod 14 drives the sliding of the connecting block 13, and the connecting block 13 drives the compression of the spring 12, thereby realizing the disassembly of the crushing knife group, and then facilitating people to clean the knife group, preventing cross contamination between different samples, and improving the accuracy and reliability of the samples.

[0041] When the scraper 24 contacts the crushing barrel 25, the crushing barrel 25 drives the square plate 19 to slide, and the square plate 19 drives the fixed column 20 to move, so that the fixed column 20 drives the rotation of the rotating column 21, and then the rotating column 21 drives the movement of the sliding column 22, and the sliding column 22 drives the compression of the spring 23 to achieve the scraping of the crushing barrel 25, and then the pesticide residues remaining on the inner wall of the sample container can be effectively extracted, so that the pesticide residues in the sample can be fully extracted, thereby improving the extraction efficiency.

[0042] The electric push rod 26 is started, so that the electric push rod 26 drives the square slide plate 30 to slide, and the square slide plate 30 drives the rotation of the rotating plate 29, so that the rotating plate 29 drives the rotation of the rotating plate 1 28, and then the rotating plate 1 28 drives the rotation of the rotating shaft 27, and the square slide plate 30 drives the movement of the sliding block 32, so that the sliding block 32 drives the sliding of the clamping plate 33, so as to fix the crushing barrel 25, and then it can ensure that the crushing barrel 25 remains stable during the operation of the equipment, reducing the risk of accidental movement or tilting, thereby improving the safety of operators and equipment.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products, comprising a workbench (1), characterized in that: The top rear side of the workbench (1) is fixedly connected to a square box (2), the interior of the square box (2) is fixedly connected to a driving assembly, the exterior of the driving assembly is threadedly connected to a sliding plate (5), the front side of the sliding plate (5) is fixedly connected to a cover body (6), the top of the cover body (6) is fixedly connected to a second motor (7), the driving end of the second motor (7) is fixedly connected to a rotating shaft (8), the exterior of the rotating shaft (8) is detachably connected to a plurality of hollow rings (9), the exterior of each of the hollow rings (9) is fixedly connected to a plurality of blades (10), and a cavity is provided inside the front side of the hollow ring (9). The body (11) is provided with a spring (12) fixedly connected to the front inner wall of the cavity (11), a connecting block (13) fixedly connected to the rear side of the spring (12), a pull rod (14) fixedly connected to the left side of the connecting block (13), grooves (15) are provided on the upper and lower sides of the interior of the rotating shaft (8), connecting plates (16) are fixedly connected to the upper and lower sides of the right part of the rotating shaft (8), a plurality of connecting plates (16) are fixedly connected to the right side of a wall scraping assembly, a fixing assembly is fixedly connected to the right inner wall of the workbench (1), and a crushing barrel (25) is provided on the top of the workbench (1).

2. A sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products according to claim 1, characterized in that: The driving assembly comprises a motor 1 (3), the driving end of the motor 1 (3) is fixedly connected to a threaded rod (4), the outer thread of the threaded rod (4) is connected to the inner rear side of the sliding plate (5), and the outer part of the sliding plate (5) is slidably connected to the inner wall of the square box (2).

3. A sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products according to claim 1, characterized in that: The wall scraping assembly comprises a square block (17), an inner cavity (18) is provided inside the right side of the square block (17), the inner wall of the inner cavity (18) is slidably connected to a square plate (19), the upper and lower sides of the left part of the square plate (19) are fixedly connected to fixed columns (20), the left side of the fixed column (20) is rotatably connected to a rotating column (21), the left side of the rotating column (21) is rotatably connected to a sliding column (22), the adjacent sides of the two sliding columns (22) are respectively fixedly connected to springs 2 (23), and the right side of the square plate (19) is fixedly connected to a scraper (24).

4. A sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products according to claim 1, characterized in that: The fixing assembly comprises an electric push rod (26), the upper and lower sides of the workbench (1) are internally rotatably connected with a second rotating shaft (27), the outside of the second rotating shaft (27) is fixedly connected with a first rotating plate (28), the left and right sides of the first rotating plate (28) are both rotatably connected with a second rotating plate (29), and the two sides of the second rotating plates (29) are respectively rotatably connected with a square slide plate (30), the left and right sides of the top of the workbench (1) are both provided with a square opening (31), the inside of the square opening (31) is slidably connected with a sliding block (32), the top of the sliding block (32) is fixedly connected with a clamping plate (33), and the driving end of the electric push rod (26) is fixedly connected to the right side of the square slide plate (30) on the right side.

5. A sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products according to claim 4, characterized in that: The bottom left and right sides of the workbench (1) are both provided with long strip openings (34), the inner wall of the long strip opening (34) is slidably connected with a long strip block (35), and the bottom of the square slide plate (30) is fixedly connected to the top of the long strip block (35).

6. A sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products according to claim 4, characterized in that: The bottom of the clamping plate (33) is slidably connected to the left and right sides of the top of the workbench (1), and the outside of the square slide plate (30) is slidably connected to the left and right sides of the inside of the workbench (1).

7. A sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products according to claim 3, characterized in that: The outside of the scraper (24) contacts the inner wall of the crushing barrel (25), and the outside of the sliding column (22) is slidably connected to the upper and lower sides of the inside of the square block (17).

8. A sample preparation device for detecting pesticide residues in vegetable and fruit agricultural products according to claim 1, characterized in that: The outside of the connecting block (13) is slidably connected to the inner wall of the cavity (11), the outside of the pull rod (14) is slidably connected to the inside of the front side of the hollow ring (9), and the outside of the connecting block (13) is engaged with the inner wall of the groove (15).

Images