Quantitative sampling machine for fruit and vegetable pesticide detection

Abstract

The utility model relates to the technical field of fruit and vegetable pesticide detection, and discloses a fruit and vegetable pesticide detection quantitative sampling machine which comprises an equipment box, the right lower end of the equipment box is fixedly connected with an L-shaped fixing rod, the top end of the L-shaped fixing rod is fixedly connected with a supporting plate, and the left side of the supporting plate is fixedly connected with a glass tube barrel. A glass tube fixing block is fixedly connected to the bottom of the right side of the glass tube barrel, square blocks are fixedly connected to the interior of the glass tube barrel, a spherical stop block is slidably connected to the top of the cross-shaped fixing block, and a floating baffle is fixedly connected to the bottom of the spherical stop block. According to the utility model, the motor transmission gear drives the piston column to move back and forth on the supporting plate, so that the front-back moving distance of the piston column is fixed, the floating baffle plate is driven to lift to suck a sample liquid to be measured into the glass tube barrel and inject the sample liquid into the sample tube, and the effect of quantitatively obtaining and measuring the sample to be measured is realized.

Description

Technical Field

[0001] This utility model relates to the field of pesticide detection technology for fruits and vegetables, and in particular to a quantitative sampling machine for pesticide detection in fruits and vegetables. Background Technology

[0002] Pesticides in fruits and vegetables are mainly used to control pests and diseases in order to improve crop yield and quality. These include insecticides, fungicides, and herbicides. By controlling pests, diseases, and weeds, they reduce losses of fruits and vegetables, thereby increasing yield. However, they can also harm our health, pollute soil and water sources, and damage ecosystems. Quantitative sampling machines for pesticide testing in fruits and vegetables are devices used to accurately obtain a certain amount of fruit and vegetable samples during the pesticide residue testing process. They can accurately measure the pesticide content in fruits and vegetables, thereby screening out unqualified products for rejection.

[0003] Before using the quantitative sampling machine for pesticide testing of fruits and vegetables, carefully inspect all parts of the machine to ensure they are intact. Select representative fruit and vegetable samples. Adjust the sampling volume using the machine's adjustment device according to the testing requirements and the characteristics of the fruits and vegetables. After sampling, carefully remove the sample from the fruit or vegetable to avoid spillage or contamination. Place the sample in a clean, sealed container. The sampled fruit and vegetable samples should be tested for pesticide residues as soon as possible to avoid prolonged storage, which could lead to sample deterioration or changes in pesticide residues.

[0004] Quantitative sampling machines for pesticide testing in fruits and vegetables are widely used in agricultural production, market circulation, and food safety supervision. Through accurate and efficient sampling and testing, pesticide residue problems in fruits and vegetables can be detected in a timely manner, preventing fruits and vegetables with excessive pesticide residues from entering the market and protecting consumers' health. However, the amount of sample taken during the sampling process can also affect the test results. Traditional quantitative sampling machines for pesticide testing in fruits and vegetables are difficult to select samples quantitatively. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a quantitative sampling machine for pesticide detection in fruits and vegetables, aiming to improve the problem in the existing technology that it is difficult to quantitatively select the sample to be measured, resulting in inaccurate pesticide residues in fruits and vegetables and incorrect experimental results.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a quantitative sampling machine for pesticide detection in fruits and vegetables, comprising an equipment box, an L-shaped fixing rod fixedly connected to the lower right end of the equipment box, a support plate fixedly connected to the top end of the L-shaped fixing rod, a glass tube fixedly connected to the left side of the support plate, a glass tube fixing block fixedly connected to the bottom right side of the glass tube, square blocks fixedly connected inside the glass tube, cross-shaped fixing blocks fixedly connected to the inner wall of the square blocks, a spherical stop block slidably connected to the top of the cross-shaped fixing block, a floating baffle fixedly connected to the bottom of the spherical stop block, a piston frame fixedly connected to the top of the support plate, and a multi-sample rotation mechanism fixedly connected to the lower end of the equipment box, the multi-sample rotation mechanism being used for multi-sample rotation sampling.

[0007] As a further description of the above technical solution:

[0008] The multi-sample rotation mechanism includes a motor fixing block, a motor fixedly connected to the top of the motor fixing block, a circular rotating wheel fixedly connected to the top of the motor, a circular groove on the top surface of the circular rotating wheel, a circular block fixedly connected to the top of the circular groove, a pentagonal grooved gear slidably connected to the top of the circular block, a bearing fixedly connected inside the pentagonal grooved gear, a turntable fixedly connected to the top of the bearing, a fixing column fixedly connected to the middle of the turntable, sample tubes fixedly connected to the top of each turntable, and a cylindrical support column fixedly connected to the bottom of the turntable.

[0009] As a further description of the above technical solution:

[0010] The piston frame includes a second motor, a second motor fixing block is fixedly connected to the rear side of the second motor, a second gear is fixedly connected to the output end of the second motor, a first gear meshes with the front end of the second gear, a connecting rod is fixedly connected to the top of the first gear, a piston column is fixedly connected to the other end of the connecting rod, a protective cylinder is slidably connected to the outer wall of the middle part of the piston column, and a circular base plate is fixedly connected to the right side of the piston column.

[0011] As a further description of the above technical solution:

[0012] A circular hole is provided on the top right side of the equipment box, and foot pads are fixedly connected to the bottom of the equipment box.

[0013] As a further description of the above technical solution:

[0014] Each of the protective cylinders has a piston fixing block fixedly connected to its bottom, and a slot is fixedly connected to the middle of the bottom of the protective cylinder.

[0015] As a further description of the above technical solution:

[0016] A front baffle is fixedly connected to the top left side of the support plate, and the front baffle is slidably connected to one end of the piston rod.

[0017] As a further description of the above technical solution:

[0018] A desktop is fixedly connected to the top of the equipment box, and a control screen is provided on the top left side of the desktop.

[0019] As a further description of the above technical solution:

[0020] The top of the glass tube is fixedly connected to a liquid inlet, and the top middle of the support plate is fixedly connected to a rear baffle.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the motor drives gear two, which in turn drives gear one to rotate. Gear one is connected to the piston rod by a connecting rod, which causes the piston rod to move back and forth on the support plate. Because one end of the piston rod is connected to a circular base plate between the front baffle and the rear baffle, the piston rod moves back and forth a fixed distance, which drives the floating baffle to rise and fall to draw the liquid sample to be tested into the glass tube and inject it into the sample tube, thereby achieving the effect of quantitative acquisition and measurement of the sample to be tested.

[0023] 2. In this utility model, a motor drives a circular rotating wheel to rotate, causing a cylindrical block on the circular rotating wheel to rotate in the groove of a pentagonal grooved gear, which in turn drives a turntable to rotate. This causes multiple sample tubes on the turntable to rotate to a designated position to replenish the liquid sample to be tested, thus achieving the effect of simultaneous measurement of multiple liquid samples. Attached Figure Description

[0024] Figure 1 This is a front perspective view of a quantitative sampling machine for detecting pesticides in fruits and vegetables proposed in this utility model;

[0025] Figure 2 This is a partial structural diagram of the turntable of a quantitative sampling machine for detecting pesticides in fruits and vegetables proposed in this utility model;

[0026] Figure 3 This is a partial exploded view of the circular rotor of a quantitative sampling machine for pesticide detection in fruits and vegetables proposed in this utility model;

[0027] Figure 4 This is a partial structural diagram of the piston column of a quantitative sampling machine for pesticide detection in fruits and vegetables proposed in this utility model;

[0028] Figure 5 This is a partial sectional view of the glass tube of a quantitative sampling machine for detecting pesticides in fruits and vegetables proposed in this utility model;

[0029] Figure 6This is a diagram illustrating the square block structure of a quantitative sampling machine for pesticide detection in fruits and vegetables proposed in this utility model.

[0030] Legend:

[0031] 1. Equipment box; 2. Multi-sample rotation mechanism; 201. Turntable; 202. Cylindrical support column; 203. Fixing column; 204. Sample tube; 205. Circular rotating wheel; 206. Circular groove; 207. Motor 1; 208. Motor fixing block 1; 209. Circular block; 210. Pentagonal grooved gear; 211. Bearing; 3. Desktop; 4. Control panel; 5. Foot pads; 6. Circular hole; 7. Glass tube; 8. Liquid inlet 9. Protective cylinder; 10. Support plate; 11. Piston column; 12. L-shaped fixing rod; 13. Glass tube fixing block; 14. Piston fixing block; 15. Slot; 16. Circular base plate; 17. Front baffle; 18. Rear baffle; 19. Connecting rod; 20. Gear one; 21. Motor two; 22. Gear two; 23. Motor fixing block two; 24. Square block; 25. Cross-shaped fixing block; 26. Spherical stop block; 27. Floating baffle. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 An embodiment of this utility model provides a quantitative sampling machine for pesticide detection in fruits and vegetables, comprising an equipment box 1, characterized in that: an L-shaped fixing rod 12 is fixedly connected to the lower right end of the equipment box 1, a support plate 10 is fixedly connected to the top end of the L-shaped fixing rod 12, a glass tube 7 is fixedly connected to the left side of the support plate 10, a glass tube fixing block 13 is fixedly connected to the bottom right side of the glass tube 7, square blocks 24 are fixedly connected inside the glass tube 7, cross-shaped fixing blocks 25 are fixedly connected to the inner wall of the square blocks 24, a spherical stop block 26 is slidably connected to the top of the cross-shaped fixing block 25, a floating baffle 27 is fixedly connected to the bottom of the spherical stop block 26, a piston frame is fixedly connected to the top of the support plate 10, and a multi-sample rotation mechanism 2 is fixedly connected to the lower end of the inside of the equipment box 1, the multi-sample rotation mechanism 2 being used for multi-sample rotation sampling;

[0034] Specifically, an L-shaped fixing rod 12 is connected to the lower right end of the equipment box 1. A support plate 10 is fixedly connected to the top of the L-shaped fixing rod 12 to ensure the stability of the equipment. A glass tube 7 is fixedly connected to the left side of the support plate 10. A glass tube fixing block 13 is designed at the bottom right side of the glass tube 7 to prevent it from shifting or falling off during use. Multiple square blocks 24 are fixedly connected inside the glass tube 7. These square blocks 24 not only provide support, but also have a cross-shaped fixing block 25 fixedly connected to the inner wall of the square blocks 24. The top of the cross-shaped fixing block 25 has a sliding connection structure to connect to the spherical stop block 26, ensuring that the spherical stop block 26 stays stably in a specific position. A floating baffle 27 is fixedly connected to the bottom of the spherical stop block 26. The design of the floating baffle 27 allows it to float freely within a certain range. A piston frame is fixedly connected to the top of the support plate 10.

[0035] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The multi-sample rotation mechanism 2 includes a motor fixing block 208, a motor 207 fixedly connected to the top of the motor fixing block 208, a circular rotating wheel 205 fixedly connected to the output end of the motor 207, a circular groove 206 opened on the top surface of the circular rotating wheel 205, a circular block 209 fixedly connected to the top of the circular groove 206, a pentagonal groove gear 210 slidably connected to the top of the circular block 209, a bearing 211 fixedly connected inside the pentagonal groove gear 210, a turntable 201 fixedly connected to the top of the bearing 211, a fixing column 203 fixedly connected to the middle of the turntable 201, sample tubes 204 fixedly connected to the top of the turntable 201, and a cylindrical support column 202 fixedly connected to the bottom of the turntable 201.

[0036] Specifically, the multi-sample rotation mechanism 2 includes a motor fixing block 208, on the top of which a motor 207 is fixedly connected. The output end of the motor 207 is tightly connected to a circular rotating wheel 205 to ensure efficient power transmission. The top surface of the circular rotating wheel 205 is carefully designed with a circular groove 206. A circular block 209 is fixedly connected to the top of this groove. A pentagonal groove gear 210 is slidably connected to the top of the circular block 209. This connection method allows the gear to be finely adjusted under specific conditions. Inside the pentagonal groove gear 210, a bearing 211 is fixedly connected. A turntable 201 is fixedly connected to the top of the bearing 211. The turntable 201 is fixedly connected to multiple sample tubes 204, so that each sample tube 204 can obtain consistent processing conditions during the experiment. A fixed column 203 is fixedly connected to the middle of the turntable 201, which serves as a support.

[0037] Please see the appendix Figure 1 Appendix Figure 5 and attached Figure 6 The piston frame includes a second motor 21, a second motor fixing block 23 is fixedly connected to the rear side of the second motor 21, a second gear 22 is fixedly connected to the output end of the second motor 21, a first gear 20 is meshed at the front end of the second gear 22, a connecting rod 19 is fixedly connected to the top of the first gear 20, a piston column 11 is fixedly connected to the other end of the connecting rod 19, a protective cylinder 9 is slidably connected to the outer wall of the middle part of the piston column 11, a circular base plate 16 is fixedly connected to the right side of the piston column 1, a circular hole 6 is opened on the top right side of the equipment box 1, and foot pads 5 are fixedly connected to the bottom of the equipment box 1.

[0038] Specifically, the piston frame assembly includes a second motor 21, which is designed to be fixedly connected to a second motor fixing block 23 at the rear to ensure its stability during operation. The output end of the second motor 21 is fixedly connected to a second gear 22 to achieve efficient power transmission. The front end of the second gear 22 meshes with a first gear 20 to ensure the accuracy and synchronization of movement. A connecting rod 19 is fixedly connected to the top of the first gear 20. The connecting rod 19 serves as a transmission component, transmitting power to the piston rod 11. The piston rod 11 serves as an actuator, with one end connected to the connecting rod 19 and the other end slidingly connected to the protective cylinder 9. In addition, the equipment box 1, as the load-bearing structure of the entire frame assembly, has a circular hole 6 on its top right side. The bottom of the equipment box 1 is fixedly connected with foot pads 5, which serve to support the equipment box 1.

[0039] Please see the appendix Figure 1 and attached Figure 5 Piston fixing blocks 14 are fixedly connected to the bottom of the protective cylinder 9, and a slot 15 is fixedly connected to the middle of the bottom of the protective cylinder 9. A front baffle 17 is fixedly connected to the top left of the support plate 10, and the front baffle 17 is slidably connected to one end of the piston column 11. A desktop 3 is fixedly connected to the top of the equipment box 1, and a control panel 4 is provided on the top left of the desktop 3. An inlet 8 is fixedly connected to the top of the glass tube 7, and a rear baffle 18 is fixedly connected to the middle of the top of the support plate 10.

[0040] Specifically, the bottom of the protective cylinder 9 is equipped with a piston fixing block 14 by a fixed connection. At the center of the bottom of the protective cylinder 9, a slot 15 is fixedly connected, which provides additional support and positioning functions. On the top left side of the support plate 10, a front baffle 17 is fixedly connected. The front baffle 17 is slidably connected to one end of the piston column 11. The top of the equipment box 1 is fixedly connected to a desktop 3. A control panel 4 is set on the top left side of the desktop 3. The control panel 4 is the interface for user interaction with the equipment, which facilitates various settings and monitoring by the operator. The top of the glass tube 7 is fixedly connected to a liquid inlet 8. At the center of the top of the support plate 10, a rear baffle 18 is fixedly connected.

[0041] Working principle: The sample liquid is poured into the inlet 8, and the motor 21 is started, which drives the gear 22 to rotate. The transmission gear 20 rotates, and the gear 20 is connected to the piston 11 through the connecting rod 19, causing the piston 11 to move back and forth. Because there is a circular base plate 16 on the piston 11, it moves between the front baffle 17 and the rear baffle 18. When the piston 11 moves backward in the glass tube 7, the floating baffle 27 at the top of the tube moves downward due to the pressure inside the tube. However, a spherical block 26 is fixed on the top of the floating baffle 27. When it descends to a certain height, the spherical block... 26 is blocked by the cross-shaped fixing block 25. At this time, the liquid in the inlet 8 flows into the glass tube 7 through the gap between the floating baffle 27 and the square block 24. Due to the suction of the piston column 11, the floating baffle 27 below the glass tube 7 is tightly attached to the square block 24, and the liquid will not leak out. Since the piston column 11 moves along the same trajectory, the liquid volume in the glass tube 7 is the same. Similarly, when the piston column 11 is pushed, the upper floating baffle 27 closes and the lower floating baffle 27 opens, and the liquid flows out, thus achieving the effect of quantitative detection of the liquid sample.

[0042] The motor 207 is started, which drives the circular wheel 205 to rotate. There is a circular block 209 in the circular groove 206 inside the circular wheel 205. When the circular block 209 rotates into the groove of the pentagonal groove gear 210, it drives the pentagonal groove gear 210 to rotate. Then the circular block 209 rotates out and rotates into the next groove. The pentagonal groove gear 210 drives the turntable 201 to rotate, which rotates the sample tube 204 on the turntable 201 to the corresponding position until it is filled with sample, thus achieving the effect of detecting multiple samples at one time.

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

Claims

1. A fruit and vegetable pesticide detection and quantitative sampling machine comprising a device box (1), characterized in that: The lower right end of the equipment box (1) is fixedly connected with an L-shaped fixed rod (12), the top end of the L-shaped fixed rod (12) is fixedly connected with a support plate (10), the left side of the support plate (10) is fixedly connected with a glass tube barrel (7), the right side bottom of the glass tube barrel (7) is fixedly connected with a glass tube fixed block (13), the inside of the glass tube barrel (7) is fixedly connected with a square block (24), the inner wall of the square block (24) is fixedly connected with a cross-shaped fixed block (25), the top of the cross-shaped fixed block (25) is slidably connected with a spherical stop block (26), the bottom of the spherical stop block (26) is fixedly connected with a floating baffle (27), the top of the support plate (10) is fixedly connected with a piston frame, the inside lower end of the equipment box (1) is fixedly connected with a multi-sample rotating mechanism (2), and the multi-sample rotating mechanism (2) is used for multi-sample rotating sampling.

2. The fruit and vegetable pesticide detection and quantitative sampling machine according to claim 1, characterized in that: The multi-sample rotating mechanism (2) comprises a motor fixed block one (208), the top end of the motor fixed block one (208) is fixedly connected with a motor one (207), the output end of the motor one (207) is fixedly connected with a circular rotating wheel (205), the top end surface of the circular rotating wheel (205) is provided with a circular groove (206), the top of the circular groove (206) is fixedly connected with a circular block (209), the top of the circular block (209) is slidably connected with a five-edged groove gear (210), the inside of the five-edged groove gear (210) is fixedly connected with a bearing (211), the top of the bearing (211) is fixedly connected with a rotating disc (201), the middle part of the rotating disc (201) is fixedly connected with a fixed column (203), the top of the rotating disc (201) is fixedly connected with a sample tube (204), and the bottom of the rotating disc (201) is fixedly connected with a cylindrical support column (202).

3. The fruit and vegetable pesticide detection and quantitative sampling machine according to claim 1, characterized in that: The piston frame comprises a motor two (21), the rear side of the motor two (21) is fixedly connected with a motor fixed block two (23), the output end of the motor two (21) is fixedly connected with a gear two (22), the front end of the gear two (22) is engaged with a gear one (20), the top of the gear one (20) is fixedly connected with a connecting rod (19), the other end of the connecting rod (19) is fixedly connected with a piston column (11), the middle outer wall of the piston column (11) is slidably connected with a protection cylinder (9), and the right side of the piston column (11) is fixedly connected with a circular bottom plate (16).

4. The fruit and vegetable pesticide detection and quantitative sampling machine according to claim 1, characterized in that: The top right side of the equipment box (1) is provided with a circular hole (6), and the bottom of the equipment box (1) is fixedly connected with a foot pad (5).

5. The fruit and vegetable pesticide detection and quantitative sampling machine according to claim 3, characterized in that: The bottom of the protection cylinder (9) is fixedly connected with a piston fixed block (14), and the bottom middle of the protection cylinder (9) is fixedly connected with a clamping groove (15).

6. The fruit and vegetable pesticide detection and quantitative sampling machine according to claim 1, characterized in that: The top left side of the support plate (10) is fixedly connected with a front baffle (17), and one end of the piston column (11) is slidably connected with the front baffle (17).

7. The fruit and vegetable pesticide detection and quantitative sampling machine according to claim 1, characterized in that: The top of the equipment box (1) is fixedly connected with a desktop (3), and the top left side of the desktop (3) is provided with a control screen (4).

8. The fruit and vegetable pesticide detection and quantitative sampling machine according to claim 1, characterized in that: The top of the glass tube (7) is fixedly connected with a liquid inlet (8), and the top middle of the support plate (10) is fixedly connected with a back baffle (18).

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