Surface residue high-efficiency elution machine for detection of pesticide residues in fruits and vegetables

Abstract

The utility model relates to the technical field of agricultural residue detection, especially surface residue high -efficient elution machine for fruit and vegetable agricultural residue detection. Its technical scheme includes base and cleaning cylinder, is fixedly installed with cleaning cylinder and fixed frame on the base upper surface, the both sides position place of fixed frame upper surface is fixedly installed with hydraulic cylinder symmetry, and the hydraulic cylinder output end is fixedly connected with lifting plate, the lifting plate upper surface is fixedly installed with transmission case, the transmission case upper surface is fixedly installed with rotation motor, the lifting plate lower surface rotatory mounting has hollow shaft, and the hollow shaft penetrates lifting plate and transmission case, the hollow shaft top is rotatably connected with water pipe through swivel joint, the hollow shaft outer surface is fixedly installed with net cylinder through the connecting frame and is installed in the position department below the lifting plate, the cleaning cylinder rear surface is fixedly installed with reagent box near the upper surface position department. The utility model can wash off the agricultural residue on the surface of fruit and vegetable efficiently, and the water consumption is less, saves water resource.

Description

Technical Field

[0001] This utility model relates to the field of pesticide residue detection technology, specifically to a high-efficiency washing machine for surface residue detection in fruits and vegetables. Background Technology

[0002] Pesticide residue testing in fruits and vegetables is a process of qualitative or quantitative analysis of pesticide components and contents in fruits and vegetables using professional technical means. The core purpose is to determine whether they meet safety standards and prevent food safety risks. During testing, pesticide residues are usually separated through pretreatment steps such as elution and extraction. Then, instruments such as gas chromatography, liquid chromatography, and mass spectrometry, or rapid test strips (cards) are used to accurately identify the types and contents of common pesticides such as organophosphates and pyrethroids. It is widely used in agricultural product procurement, market supervision, food processing and other links, providing key evidence for consumers' food safety and agricultural product quality control.

[0003] Currently, surface elution before pesticide residue testing of fruits and vegetables mostly relies on conventional methods such as water washing, soaking, and rinsing. On the one hand, this method has limited effectiveness in removing stubborn pesticide residues, which are easily left on the surface of fruits and vegetables. This may lead to surface residues being mixed into the sample during subsequent testing, interfering with the accuracy of internal pesticide residue test results. On the other hand, the process requires continuous or large amounts of water, resulting in significant water consumption and waste. Therefore, we propose a high-efficiency surface residue elution machine for pesticide residue testing of fruits and vegetables. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency washing machine for surface residues in fruit and vegetable pesticide residue testing. It has the advantages of efficiently washing away pesticide residues on the surface of fruits and vegetables with low water consumption, thus saving water resources. It solves the problem that current surface washing methods for fruit and vegetable pesticide residue testing mainly rely on conventional methods such as water washing, soaking, and rinsing. On the one hand, these methods have limited effectiveness in removing stubborn pesticide residues, which are easy to remain on the surface of fruits and vegetables. This may lead to surface residues being mixed into the sample during subsequent testing, interfering with the accuracy of internal pesticide residue test results. On the other hand, the process requires continuous or large amounts of water, which will cause significant water consumption and waste.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency washing and desiccant for detecting pesticide residues on fruits and vegetables, comprising a base and a washing cylinder. The washing cylinder and a fixing frame are fixedly installed on the upper surface of the base. Hydraulic cylinders are symmetrically fixedly installed on both sides of the upper surface of the fixing frame, and the output end of the hydraulic cylinder is fixedly connected to a lifting plate. A transmission box is fixedly installed on the upper surface of the lifting plate, and a rotating motor is fixedly installed on the upper surface of the transmission box. A hollow shaft is rotatably installed on the lower surface of the lifting plate, and the hollow shaft passes through the lifting plate and the transmission box. A clean water pipe is rotatably connected to the top of the hollow shaft through a rotary joint. A mesh cylinder is fixedly installed on the outer surface of the hollow shaft below the lifting plate through a connecting frame. A reagent box is fixedly installed on the rear surface of the washing cylinder near the upper surface.

[0006] Preferably, a motor gear is fixedly connected to the end of the output shaft of the rotating motor, and a transmission gear is fixedly sleeved on the outer surface of the hollow shaft. Both the motor gear and the transmission gear are located inside the transmission box, and the motor gear and the transmission gear mesh with each other.

[0007] Preferably, a water valve is fixedly connected to the end of the water purification pipe.

[0008] Preferably, a nozzle is fixedly connected to the bottom end of the hollow shaft.

[0009] Preferably, a connecting valve is fixedly connected to the lower surface of the medicine tank, and a flow meter is fixedly connected to the end of the connecting valve, with the end of the flow meter fixedly connected to the rear surface of the cleaning cylinder via a connecting pipe.

[0010] Preferably, an overflow pipe is fixedly connected at the middle position of the front surface of the cleaning cylinder, and an air vent valve is fixedly connected at the position of the front surface of the cleaning cylinder near the lower surface.

[0011] Preferably, sliding rods are symmetrically fixedly connected to both sides of the upper surface of the lifting plate, and sliding sleeves are fixedly installed on the upper surface of the fixing frame at the positions outside the two hydraulic cylinders, with the sliding rods passing through the sliding sleeves.

[0012] Preferably, a plurality of uprights are uniformly fixedly connected to the bottom of the inner wall of the mesh cylinder, and a layer of fleece is fixedly installed on both the uprights and the outer surface of the mesh cylinder.

[0013] Preferably, a multi-stage telescopic rod is fixedly connected at the axial position of the lower surface of the mesh cylinder, and the ends of the multi-stage telescopic rod are rotatably connected to the bottom of the inner wall of the cleaning cylinder through bearings.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting up a washing cylinder, a reagent tank, a fixing frame, a hydraulic cylinder, a lifting plate, a hollow shaft, a mesh cylinder, a rotary joint, a clean water pipe, a transmission box, and a rotating motor, achieves the effect of efficiently washing away pesticide residues on the surface of fruits and vegetables, while using less water and saving water resources. Fruits and vegetables are placed inside the mesh cylinder, and the output end of the hydraulic cylinder drives the lifting plate to descend, so that the mesh cylinder and the fruits and vegetables inside are immersed in the washing water inside the washing cylinder. Meanwhile, pesticide residue cleaning agent from the reagent tank is added to the washing cylinder, and the rotating motor drives the hollow shaft... The shaft drives the mesh cylinder to rotate, causing the fruits and vegetables inside to rotate in the washing water. Combined with pesticide cleaning agents, this effectively removes pesticide residues from the surface of the fruits and vegetables. After washing, the hydraulic cylinder output drives the lifting plate to rise, raising the mesh cylinder above the washing water surface. At this point, clean water is then transported to the hollow shaft through a clean water pipe and sprayed onto the fruits and vegetables inside the mesh cylinder to remove any remaining washing water from their surfaces. Finally, the motor drives the mesh cylinder to rotate through the hollow shaft, using centrifugal force to dry the surface of the fruits and vegetables.

[0015] 2. By setting an overflow pipe, this utility model can drain excess washing water from inside the washing cylinder, ensuring a constant liquid level inside the washing cylinder. This allows the mesh cylinder to remain inside the washing cylinder even when it rises above the washing water surface, facilitating water collection through the washing cylinder during the process of drying the surface moisture of fruits and vegetables.

[0016] 3. The uprights and the fleece layer of this utility model, when the fruits and vegetables are rotated and washed in the washing water along with the net cylinder, the fleece on the outer surface of the uprights and the net cylinder comes into contact with and rubs against the outer surface of the fruits and vegetables, which helps to remove pesticide residues from the outer surface of the fruits and vegetables. At the same time, the fleece layer also plays a protective role for the fruits and vegetables, effectively preventing damage to the surface of the fruits and vegetables caused by bumps. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial three-dimensional structural diagram of the medicine box of this utility model; Figure 3 This is a partial three-dimensional structural diagram of the lifting plate of this utility model; Figure 4 This is a partial three-dimensional structural diagram of the transmission box of this utility model; Figure 5 This is a partial three-dimensional structural diagram of the mesh cylinder of this utility model.

[0018] Reference numerals: 1. Base; 2. Cleaning cylinder; 3. Fixing frame; 4. Chemical tank; 5. Hydraulic cylinder; 6. Lifting plate; 7. Overflow pipe; 8. Drain valve; 9. Flow meter; 10. Connecting valve; 11. Sliding rod; 12. Sliding sleeve; 13. Transmission box; 14. Mesh cylinder; 15. Multi-stage telescopic rod; 16. Hollow shaft; 17. Nozzle; 18. Transmission gear; 19. Rotary motor; 20. Rotary joint; 21. Clean water pipe; 22. Water valve; 23. Connecting frame; 24. Column; 25. Fleece layer. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example 1

[0020] like Figures 1-5 As shown, the high-efficiency washing machine for detecting pesticide residues on fruits and vegetables proposed in this utility model includes a base 1 and a washing cylinder 2. The washing cylinder 2 and a fixing frame 3 are fixedly installed on the upper surface of the base 1. The fixing frame 3 is shaped like an "n" in front of the main view, and the washing cylinder 2 is located inside the fixing frame 3. The two sides of the inner wall of the fixing frame 3 are fixedly connected to the two sides of the outer surface of the washing cylinder 2. Hydraulic cylinders 5 are symmetrically fixedly installed on both sides of the upper surface of the fixing frame 3, and lifting plates 6 are fixedly connected to the output ends of the hydraulic cylinders 5. Sliding rods 11 are symmetrically fixedly connected to both sides of the upper surface of the lifting plate 6. The upper surface of the fixing frame 3 is located on both sides of the lifting plate 6. Each hydraulic cylinder 5 has a sliding sleeve 12 fixedly installed on its outer side, and the sliding rod 11 passes through the sliding sleeve 12. A transmission box 13 is fixedly installed on the upper surface of the lifting plate 6, and a rotating motor 19 is fixedly installed on the upper surface of the transmission box 13. A hollow shaft 16 is rotatably installed on the lower surface of the lifting plate 6, and the hollow shaft 16 passes through the lifting plate 6 and the transmission box 13. A motor gear is fixedly connected to the end of the output shaft of the rotating motor 19. A transmission gear 18 is fixedly sleeved on the outer surface of the hollow shaft 16. Both the motor gear and the transmission gear 18 are located inside the transmission box 13, and the motor gear and the transmission gear 18 mesh with each other.

[0021] A water purification pipe 21 is rotatably connected to the top of the hollow shaft 16 via a rotary joint 20. A water valve 22 is fixedly connected to the end of the water purification pipe 21. A nozzle 17 is fixedly connected to the bottom of the hollow shaft 16. Clean water is sprayed downwards evenly through the water purification pipe 21, the hollow shaft 16, and the nozzle 17. A mesh cylinder 14 is fixedly installed on the outer surface of the hollow shaft 16 below the lifting plate 6 via a connecting frame 23. The connecting frame 23 is shaped like an "n" in front of the main view, and the upper surface of the mesh cylinder 14 is open. Fruits and vegetables are placed inside the mesh cylinder 14 through this opening or removed. A multi-stage telescopic rod 15 is fixedly connected to the axis position on the lower surface of the mesh cylinder 14, and the end of the multi-stage telescopic rod 15 is rotatably connected to the bottom of the inner wall of the washing cylinder 2 via a bearing. The setting of the multi-stage telescopic rod 15 can improve the stability of the mesh cylinder 14 when it rotates.

[0022] A pesticide tank 4 is fixedly installed on the rear surface of the cleaning cylinder 2 near the upper surface. A connecting valve 9 is fixedly connected to the lower surface of the pesticide tank 4, and a flow meter 10 is fixedly connected to the end of the connecting valve 9. The end of the flow meter 10 is fixedly connected to the rear surface of the cleaning cylinder 2 via a connecting pipe. The pesticide tank 4 stores pesticide residue cleaning agent, which is discharged into the cleaning cylinder 2 after the connecting valve 9. The amount of pesticide residue cleaning agent added can be measured by the flow meter 10. An overflow pipe 7 is fixedly connected to the middle of the front surface of the cleaning cylinder 2. The overflow pipe 7 can drain excess cleaning water from the cleaning cylinder 2 to ensure a constant liquid level inside the cleaning cylinder 2. This ensures that when the net cylinder 14 rises above the surface of the washing water, it remains inside the washing cylinder 2, allowing water to be collected through the washing cylinder 2 during the process of drying the surface moisture of the fruits and vegetables. The agent tank 4 is located above the overflow pipe 7, allowing pesticide residue cleaning agent to flow into the washing cylinder 2. The overflow pipe 7 and the water valve 22 are both fixedly connected to quick-connect pipe fittings, facilitating quick connection between the overflow pipe 7 and the drain pipe to drain the overflowed washing water. It also facilitates quick connection between the water valve 22 and the clean water supply pipe. An air drain valve 8 is fixedly connected to the front surface of the washing cylinder 2 near the lower surface.

[0023] In use, fruits and vegetables are placed inside the mesh cylinder 14. The output end of the hydraulic cylinder 5 drives the lifting plate 6 to descend, so that the mesh cylinder 14 and the fruits and vegetables inside are immersed in the washing water inside the washing cylinder 2. The pesticide residue cleaning agent inside the pesticide tank 4 is added to the washing cylinder 2. The rotating motor 19 drives the mesh cylinder 14 to rotate through the hollow shaft 16, so that the fruits and vegetables inside the mesh cylinder 14 rotate in the washing water. With the help of the pesticide cleaning agent, the pesticide residues on the surface of the fruits and vegetables can be effectively removed. After the washing is completed, the output end of the hydraulic cylinder 5 drives the lifting plate 6 to rise, so that the mesh cylinder 14 rises above the surface of the washing water. At this time, clean water is transported to the hollow shaft 16 through the clean water pipe 21 and sprayed onto the fruits and vegetables inside the mesh cylinder 14 through the nozzle 17 to wash away the residual washing water on the surface of the fruits and vegetables. Then, the rotating motor 19 drives the mesh cylinder 14 to rotate through the hollow shaft 16, and the water on the surface of the fruits and vegetables is spun dry by centrifugal force. Example 2

[0024] like Figure 1 , Figure 3 and Figure 5 As shown, the high-efficiency washing machine for detecting pesticide residues on fruits and vegetables proposed in this utility model, compared with Embodiment 1, further includes several columns 24 uniformly fixedly connected to the bottom of the inner wall of the mesh cylinder 14, and a velvet layer 25 fixedly installed on both the columns 24 and the outer surface of the mesh cylinder 14. The side walls and inner bottom walls of the mesh cylinder 14 are both mesh-like.

[0025] In this embodiment, when the fruits and vegetables are rotated and cleaned inside the washing water along with the mesh cylinder 14, the fibers of the velvet layer 25 on the outer surface of the column 24 and the mesh cylinder 14 come into contact with and rub against the outer surface of the fruits and vegetables, which helps to remove pesticide residues from the outer surface of the fruits and vegetables. At the same time, the velvet layer 25 also protects the fruits and vegetables, effectively preventing them from being damaged by bumps.

[0026] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A high-efficiency washing and desiccant for detecting pesticide residues on fruits and vegetables, comprising a base (1) and a washing cylinder (2), characterized in that: The base (1) is fixedly mounted with a cleaning cylinder (2) and a fixing frame (3). Hydraulic cylinders (5) are symmetrically fixedly mounted on both sides of the upper surface of the fixing frame (3), and the output end of the hydraulic cylinders (5) is fixedly connected to a lifting plate (6). A transmission box (13) is fixedly mounted on the upper surface of the lifting plate (6). A rotating motor (19) is fixedly mounted on the upper surface of the transmission box (13). A hollow shaft (16) is rotatably mounted on the lower surface of the lifting plate (6), and the hollow shaft (16) passes through the lifting plate (6) and the transmission box (13). A clean water pipe (21) is rotatably connected to the top of the hollow shaft (16) through a rotary joint (20). A mesh cylinder (14) is fixedly mounted on the outer surface of the hollow shaft (16) below the lifting plate (6) through a connecting frame (23). A medicine box (4) is fixedly mounted on the rear surface of the cleaning cylinder (2) near the upper surface.

2. The high-efficiency washing and desiccant for detecting pesticide residues on fruits and vegetables according to claim 1, characterized in that: The output shaft of the rotating motor (19) is fixedly connected to a motor gear, and the outer surface of the hollow shaft (16) is fixedly sleeved with a transmission gear (18). The motor gear and the transmission gear (18) are both located inside the transmission box (13), and the motor gear and the transmission gear (18) mesh with each other.

3. The high-efficiency washing and desiccant for detecting pesticide residues on fruits and vegetables according to claim 1, characterized in that: A water valve (22) is fixedly connected to the end of the water purification pipe (21).

4. The high-efficiency washing and desiccant for detecting pesticide residues on fruits and vegetables according to claim 1, characterized in that: The bottom end of the hollow shaft (16) is fixedly connected to a nozzle (17).

5. The high-efficiency washing and desiccant for detecting pesticide residues on fruits and vegetables according to claim 1, characterized in that: A connecting valve (9) is fixedly connected to the lower surface of the medicine tank (4), and a flow meter (10) is fixedly connected to the end of the connecting valve (9), and the end of the flow meter (10) is fixedly connected to the rear surface of the cleaning cylinder (2) through a connecting pipe.

6. The high-efficiency washing and desiccant for detecting pesticide residues on fruits and vegetables according to claim 1, characterized in that: An overflow pipe (7) is fixedly connected to the middle position of the front surface of the cleaning cylinder (2), and an air vent valve (8) is fixedly connected to the position of the front surface of the cleaning cylinder (2) near the lower surface.

7. The high-efficiency washing and desiccant for detecting pesticide residues on fruits and vegetables according to claim 1, characterized in that: The lifting plate (6) has symmetrical sliding rods (11) fixedly connected on both sides of the upper surface. The upper surface of the fixing frame (3) is fixedly installed with sliding sleeves (12) at the positions outside the two hydraulic cylinders (5), and the sliding rods (11) pass through the sliding sleeves (12).

8. The high-efficiency washing and desiccant for detecting pesticide residues on fruits and vegetables according to claim 1, characterized in that: Several columns (24) are uniformly fixedly connected to the bottom of the inner wall of the mesh cylinder (14), and a velvet layer (25) is fixedly installed on the outer surface of both the columns (24) and the mesh cylinder (14).

9. The high-efficiency washing and desiccant for detecting pesticide residues on fruits and vegetables according to claim 1, characterized in that: The lower surface of the mesh cylinder (14) is fixedly connected to the axial position of a multi-stage telescopic rod (15), and the end of the multi-stage telescopic rod (15) is rotatably connected to the bottom of the inner wall of the cleaning cylinder (2) through a bearing.

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