Accelerated dissolution device for pesticide residue detection of agricultural products

Abstract

The utility model discloses an agricultural product pesticide residue detection and dissolution acceleration device which comprises a supporting frame, a motor is fixedly installed at the top end of the supporting frame, the output end of the motor is in transmission connection with a rotating shaft, a gear is fixedly installed at the bottom end of the rotating shaft, racks are arranged on the two sides of the gear, and the rack is in transmission connection with the rotating shaft. The two racks are meshed with the gear, connecting rods are fixedly installed at the bottom ends of the two racks, moving plates are fixedly connected to the bottom ends of the two connecting rods, a fixed cylinder and a pressing cylinder are fixedly installed on the side walls of the two moving plates respectively, and an extraction barrel is arranged between the fixed cylinder and the pressing cylinder; the fixed cylinder is arranged in the extraction barrel and is in sliding connection with the extraction barrel. Extrusion operation is carried out through the fixing cylinder and the pressing cylinder at the two ends, the extraction barrel can be protected against damage caused by long-time extrusion, residues in the extraction barrel can flow out and fall into the material collecting groove through the lower sealing plate, and the residues in the extraction barrel can be conveniently cleaned and collected.

Description

Technical Field

[0001] The utility model relates to the technical field of pesticide residue detection, in particular to an accelerated dissolution device for detecting pesticide residues in agricultural products. Background Art

[0002] Pesticide residue testing is a vital quality control measure. It uses advanced scientific technology and methods to accurately measure and analyze the pesticide residues in samples such as food, agricultural and sideline products, and Chinese herbal medicines. The core purpose of this test is to ensure that the food we consume daily is safe and harmless, and to promptly detect and control the risk of excessive pesticide residues, thereby effectively protecting consumers' dietary health. At the same time, pesticide residue testing also plays a supervisory and guiding role. It encourages and promotes agricultural producers to use pesticides more scientifically and rationally, and is committed to reducing the potential harm of pesticides to the ecological environment and human health, and achieving sustainable development of agriculture.

[0003] In the process of pesticide residue detection, the introduction of accelerated dissolution technology is particularly critical. This technology can effectively improve the extraction efficiency of pesticide residues and ensure more accurate quantitative analysis of pesticide components in samples. By accelerating dissolution, it can not only shorten the detection time and improve the detection efficiency, but also make the results more accurate and reliable. This further strengthens the role of pesticide residue detection in ensuring food safety.

[0004] Patent document CN211697157U discloses a rapid extraction device for agricultural product pesticide detection, including an extraction tank, a top cover fixedly connected to the top of the extraction tank, a threaded rod rotatably connected inside the top cover, an extrusion plug fixedly connected to the bottom of the threaded rod, a bottom cover fixedly connected to the bottom of the extraction tank, filter plates fixedly connected to the left and right sides of the bottom of the inner wall of the extraction tank, connecting pipes fixedly connected to the left and right sides of the extraction tank, three-way pipes fixedly connected to the back of the two connecting pipes, a liquid inlet pipe fixedly connected to the back of the three-way pipe, a separation tank fixedly connected to the back of the liquid inlet pipe, and a liquid outlet pipe fixedly connected to the bottom of the back of the separation tank; the utility model can avoid detection deviation caused by crops absorbing solvents during extraction operations, and can release pesticides absorbed inside the crops to fully mix with the solvent.

[0005] As in the prior art of the above-mentioned patent, the above-mentioned device is used for accelerating dissolution of pesticide detection, and relies on the squeezing plug on the top to squeeze the crops. The squeezed liquid contains pesticide components, and the components of the pesticide can be detected later. However, the above-mentioned device has two disadvantages. One is that during the squeezing process, the pesticide is only squeezed from the top, and the squeezing plug on the top needs to exert a certain amount of downward pressure to achieve smooth squeezing. However, long-term squeezing will cause continuous pressure on the bottom of the extraction tank, making the bottom of the extraction tank fragile and the service life short. Secondly, the crop residues after squeezing will remain at the bottom of the extraction tank, which is not easy to clean. If the cleaning process is too long, it will affect the dissolution operation of the next batch. Utility Model Content

[0006] The utility model aims to provide an accelerated dissolution device for detecting pesticide residues in agricultural products to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an accelerated dissolution device for detecting pesticide residues in agricultural products, comprising a support frame, a motor is fixedly installed on the top of the support frame, the output end of the motor is transmission-connected with a rotating shaft, a gear is fixedly installed on the bottom end of the rotating shaft, racks are arranged on both sides of the gear, two of the racks are meshed with the gear, a connecting rod is fixedly installed on the bottom ends of the two racks, a movable plate is fixedly connected to the bottom ends of the two connecting rods, a fixed cylinder and a pressing cylinder are respectively fixedly installed on the side walls of the two movable plates, an extraction barrel is arranged between the fixed cylinder and the pressing barrel, the fixed cylinder is arranged inside the extraction barrel and is slidably connected to the extraction barrel, an upper sealing plate and a lower sealing plate are respectively clamped and installed on the top and bottom ends of the extraction barrel, a plurality of filter holes are arranged on the side walls of the extraction barrel, and a second filter screen is arranged inside the plurality of filter holes.

[0008] As a further description of the above technical solution: the side walls of the two movable plates are fixedly installed with limiting columns, and the limiting columns are slidably connected to the support frame.

[0009] As a further description of the above technical solution: two compression cylinders are fixedly installed on the side walls of the two movable plates, a fixing rod is slidably installed between the two compression cylinders, springs are fixedly installed at both ends of the fixing rod, and one end of the two springs is fixedly connected to the compression cylinder.

[0010] As a further description of the above technical solution: a limit bar is fixedly installed on the top of the fixed cylinder, and a limit groove is provided on the inner wall of the extraction barrel, and the limit groove is slidably connected to the limit bar.

[0011] As a further description of the above technical solution: a material receiving trough is fixedly connected between the support frames, and the material receiving trough is arranged just below the lower sealing plate.

[0012] As a further description of the above technical solution: a slope is arranged inside the receiving trough, a discharge trough is opened at the bottom end of the slope, and a first filter is arranged inside the discharge trough.

[0013] The utility model provides an accelerated dissolution device for detecting pesticide residues in agricultural products. It has the following beneficial effects: when a batch of crops needs to be tested for pesticide residues, the upper sealing plate is opened, and after opening, the crop residues soaked in the extraction solvent are placed inside the extraction barrel, and then the upper sealing plate is tightly closed, and at this time, the motor is rotated, the motor drives the rotating shaft and the gear to rotate, the gear drives the rack to move, and the two racks drive the moving plate to move toward the middle, so that the pressing cylinder and the fixed cylinder at both ends of the extraction barrel move toward the middle, clamping the crops inside the extraction barrel, so that the pesticide residues and the extractant extracted from the crops are filtered out through the filter holes, enter the receiving trough below, and flow out through the lower trough, so as to achieve the effect of accelerated dissolution, and the fixed cylinder and the pressing cylinder at both ends are squeezed to protect the extraction barrel from being damaged by long-term squeezing, and the lower sealing plate below can make the residue inside the extraction barrel flow out and fall into the inside of the receiving trough, so as to facilitate the cleaning and collection of the residue inside the extraction barrel.

[0014] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an accelerated dissolution device for detecting pesticide residues in agricultural products proposed by the utility model;

[0017] Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;

[0018] Figure 3 It is a schematic diagram of the three-dimensional explosion structure of the extraction barrel 11, the fixing barrel and the pressing barrel of the utility model;

[0019] Figure 4 It is a schematic diagram of the three-dimensional explosion structure of the extraction barrel 11, the upper sealing plate and the lower sealing plate of the utility model;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of a filter mesh arranged inside the filter hole of the utility model.

[0021] Legend:

[0022] 1. Support frame; 2. Motor; 3. Rotating shaft; 4. Gear; 5. Rack; 6. Connecting rod; 7. Moving plate; 8. Limiting column; 9. Fixed cylinder; 10. Limiting bar; 11. Extraction barrel; 12. Filter hole; 13. Limiting groove; 14. Compression cylinder; 15. Spring; 16. Fixed rod; 17. Pressing cylinder; 18. Slope; 19. First filter screen; 20. Discharge trough; 21. Upper sealing plate; 22. Second filter screen; 23. Lower sealing plate; 24. Receiving trough. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-5 , an accelerated dissolution device for detecting pesticide residues in agricultural products, comprising a support frame 1, a motor 2 is fixedly installed on the top of the support frame 1, a rotating shaft 3 is transmission-connected to the output end of the motor 2, a gear 4 is fixedly installed on the bottom end of the rotating shaft 3, racks 5 are arranged on both sides of the gear 4, two of the racks 5 are meshed with the gear 4, a connecting rod 6 is fixedly installed on the bottom ends of the two racks 5, a moving plate 7 is fixedly connected to the bottom ends of the two connecting rods 6, a fixed cylinder 9 and a pressing cylinder 17 are fixedly installed on the side walls of the two moving plates 7, respectively, an extraction barrel 11 is arranged between the fixed cylinder 9 and the pressing cylinder 17, the fixed cylinder 9 is arranged inside the extraction barrel 11 and is slidably connected to the extraction barrel 11, an upper sealing plate 21 and a lower sealing plate 23 are respectively engaged and installed on the top and bottom ends of the extraction barrel 11, a plurality of filter holes 12 are arranged on the side walls of the extraction barrel 11, and a second filter screen 22 is arranged inside the plurality of filter holes 12; when a batch of agricultural products needs to be eluted, the extraction barrel 11 is subjected to the elution test, and the extraction barrel 11 is subjected to the elution test. When the crop residue is detected, the upper sealing plate 21 is opened, and the crop residues soaked with the extraction solvent are placed inside the extraction barrel 11, and then the upper sealing plate 21 is closed, and the motor 2 is rotated at this time, and the motor 2 drives the rotating shaft 3 and the gear 4 to rotate, and the gear 4 drives the rack 5 to move, and the two racks 5 drive the moving plate 7 to move toward the middle, so that the pressing cylinder 17 and the fixed cylinder 9 at both ends of the extraction barrel 11 move toward the middle, clamping the crops inside the extraction barrel 11, so that the agricultural residues and the extractant extracted from the crops are filtered out through the filter hole 12, enter the receiving trough 24 below, and flow out through the lower trough, so as to achieve the effect of accelerating dissolution, and the fixed cylinder 9 and the pressing cylinder 17 at both ends are squeezed to protect the extraction barrel 11 from being damaged by long-term squeezing, and the lower sealing plate 23 below can make the residue inside the extraction barrel 11 flow out and fall into the inside of the receiving trough 24, so as to facilitate the cleaning and collection of the residue inside the extraction barrel 11.

[0025] As the preferred technical solution of this embodiment, the side walls of the two movable plates 7 are fixedly installed with limiting columns 8, and the limiting columns 8 are slidably connected to the support frame 1; the setting of the limiting columns 8 ensures that the movable plate 7 remains stable during the movement toward the middle, and limits the rack 5, so that the rack 5 can stably engage with the gear 4 without tooth disengagement.

[0026] As the preferred technical solution of this embodiment, two compression cylinders 14 are fixedly installed on the side walls of the two movable plates 7, and a fixed rod 16 is slidably installed between the two compression cylinders 14. Springs 15 are fixedly installed at both ends of the fixed rod 16, and one end of the two springs 15 is fixedly connected to the compression cylinder 14; in the process of the two movable plates 7 moving toward the middle, the compression cylinders 14 at both ends can be compressed toward the middle and squeeze the springs 15. This process increases the stability of the compression of the fixed cylinder 9 and the compression cylinder 17, and increases the dissolution efficiency.

[0027] As a preferred technical solution of this embodiment, a limiting strip 10 is fixedly installed on the top of the fixed cylinder 9, and a limiting groove 13 is provided on the inner wall of the extraction barrel 11, and the limiting groove 13 is slidably connected to the limiting strip 10; the setting of the limiting strip 10 and the limiting groove 13 can make the fixing between the fixed cylinder 9 and the extraction barrel 11 more stable, and no relative rotation will occur, thereby increasing the dissolution efficiency.

[0028] As a preferred technical solution of this embodiment, a material receiving trough 24 is fixedly connected between the support frames 1, and the material receiving trough 24 is arranged directly below the lower sealing plate 23; after the dissolution is completed, the filter residue can be opened by opening the lower sealing plate 23, so that the filter residue naturally falls into the interior of the material receiving trough 24, which is convenient for collection.

[0029] As a preferred technical solution of this embodiment, a slope 18 is provided inside the receiving trough 24, a discharge trough 20 is provided at the bottom end of the slope 18, and a first filter screen 19 is provided inside the discharge trough 20; the liquid flowing out from the extraction barrel 11 flows out to the discharge trough 20 at one end of the receiving trough 24 through the slope 18, thereby realizing the dissolution and collection of the pesticide residue solution, and the first filter screen 19 can prevent the filter residue of the receiving trough 24 from mixing into the finished product through the discharge trough 20.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An accelerated dissolution device for detecting pesticide residues in agricultural products, comprising a support frame (1), characterized in that: A motor (2) is fixedly mounted on the top of the support frame (1); the output end of the motor (2) is drivingly connected to a rotating shaft (3); a gear (4) is fixedly mounted on the bottom end of the rotating shaft (3); racks (5) are arranged on both sides of the gear (4); two racks (5) are meshed with the gear (4); connecting rods (6) are fixedly mounted on the bottom ends of the two racks (5); the bottom ends of the two connecting rods (6) are fixedly connected to a moving plate (7); the side walls of the two moving plates (7) are A fixed cylinder (9) and a pressing cylinder (17) are respectively fixedly installed, an extraction barrel (11) is arranged between the fixed cylinder (9) and the pressing cylinder (17), the fixed cylinder (9) is arranged inside the extraction barrel (11) and is slidably connected to the extraction barrel (11), an upper sealing plate (21) and a lower sealing plate (23) are respectively engaged and installed at the top and bottom ends of the extraction barrel (11), a plurality of filter holes (12) are arranged on the side wall of the extraction barrel (11), and a second filter screen (22) is arranged inside the plurality of filter holes (12).

2. The accelerated dissolution device for detecting pesticide residues in agricultural products according to claim 1, characterized in that: Limiting columns (8) are fixedly mounted on the side walls of the two movable plates (7), and the limiting columns (8) are slidably connected to the support frame (1).

3. The accelerated dissolution device for detecting pesticide residues in agricultural products according to claim 1, characterized in that: Two compression cylinders (14) are fixedly installed on the side walls of the two movable plates (7), a fixing rod (16) is slidably installed between the two compression cylinders (14), springs (15) are fixedly installed at both ends of the fixing rod (16), and one end of the two springs (15) is fixedly connected to the compression cylinder (14).

4. The accelerated dissolution device for detecting pesticide residues in agricultural products according to claim 1, characterized in that: A limiting strip (10) is fixedly mounted on the top of the fixed cylinder (9), and a limiting groove (13) is provided on the inner wall of the extraction barrel (11), wherein the limiting groove (13) is slidably connected to the limiting strip (10).

5. The accelerated dissolution device for detecting pesticide residues in agricultural products according to claim 1, characterized in that: A material receiving trough (24) is fixedly connected between the support frames (1), and the material receiving trough (24) is arranged directly below the lower sealing plate (23).

6. The accelerated dissolution device for detecting pesticide residues in agricultural products according to claim 5, characterized in that: A slope (18) is arranged inside the receiving trough (24), a discharge trough (20) is provided at the bottom end of the slope (18), and a first filter screen (19) is arranged inside the discharge trough (20).

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