A system and method for testing the toxicity of a whitefly control agent

Abstract

The application discloses a kind of whitefly control agent virulence determination test system and method, dispensing mechanism and test mechanism, dispensing mechanism is used to adjust drug and delivery to test mechanism, test mechanism includes support arm, annular test box with support arm fixed cooperation, medicine bottle, atomizing nozzle, fan-shaped collection box, collection drive module and intermittent worm module, annular test box includes multiple fan-shaped test boxes, and multiple fan-shaped test boxes are spliced to form annular test box, the top end in fan-shaped test box is fixedly connected with medicine bottle, the design of the present application by fan-shaped test box, atomizing nozzle and control valve, so that test personnel can simultaneously determine the virulence of different concentrations of the same agent, improve the virulence determination efficiency, shorten the test cycle, so as to solve the problem that different concentrations of control agent cannot be automatically mass virulence determination in the prior art, different agents can also be configured for virulence determination, increase the practicability of equipment.

Description

Technical Field

[0001] This invention relates to the field of toxicity testing technology, specifically to a toxicity testing system and method for a whitefly control agent. Background Technology

[0002] Whiteflies are a global plant pest and an important research subject in plant protection. In my country, chemical control is the primary method for controlling whiteflies. The development of pesticides often requires activity testing and resistance monitoring. Furthermore, toxicity testing is involved in all research processes related to pesticides. Different concentrations of pesticides show significant differences in their effectiveness against whiteflies. To compare the control effects of different concentrations, numerous experiments are needed to determine the optimal concentration. However, for a long time, existing toxicity testing equipment has relied heavily on manual operation, resulting in low efficiency, long testing cycles, and an inability to accurately measure different concentrations. Automated, large-scale toxicity testing of pesticides for whiteflies is currently underway. However, intermittently placing collected whiteflies into the test chamber during toxicity testing is inconvenient, and manual placement poses safety risks. Adding too many pesticides at once can lead to inaccurate results and hinders the observation and analysis of whitefly responses to different pesticide concentrations. Furthermore, toxicity testing typically involves manual preparation of pesticides, which are powders requiring solvent dissolution. This process suffers from insufficient mixing, is time-consuming and labor-intensive, complex, and prone to confusion due to varying concentration gradients. Therefore, we propose a toxicity testing system and method for whitefly control pesticides. Summary of the Invention

[0003] The purpose of this invention is to provide a toxicity testing system and method for whitefly control agents, which solves the problem in the prior art that it is impossible to conduct automated, large-scale toxicity testing of control agents of different concentrations.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a toxicity testing system for a whitefly control agent, comprising:

[0005] A drug dispensing unit and a testing unit, wherein the drug dispensing unit is used to dispense drugs and deliver them to the testing unit;

[0006] The testing mechanism includes a support arm, a ring-shaped test box fixedly fitted with the support arm, a medicine bottle, an atomizing nozzle, a fan-shaped collection box, a collection drive module, and an intermittent insect supply module. The ring-shaped test box includes multiple fan-shaped test boxes, which are spliced ​​together to form the ring-shaped test box. A medicine bottle is fixedly connected to the top of the fan-shaped test box, and a fan-shaped collection box is slidably arranged at the bottom of the fan-shaped test box. A spray pipe is connected to the medicine bottle's dispensing end, and an atomizing nozzle is connected to the end of the spray pipe. A control valve is provided on the outside of each spray pipe.

[0007] The bottom of the fan-shaped collection box is provided with a collection drive module for controlling the opening and closing of the fan-shaped collection box, and the top of the annular test box is provided with an intermittent insect supply module for intermittently supplying insects into the fan-shaped test box.

[0008] The drug dispensing mechanism includes a drug dispensing box, a mixing module, and a delivery and proportioning module. The side wall of the drug dispensing box is provided with a feeding port. The mixing module is provided inside the drug dispensing box. The delivery and proportioning module is provided outside the drug dispensing box for conveying the drug mixed by the mixing module in the drug dispensing box to the medicine bottle.

[0009] Preferably, the collection drive module includes a support disk, a rotating shaft, a long gear, a rack, a first gear, and a collection drive component that are fixedly fitted to the support arm. The first gear is rotatably mounted on the top of the support arm, the rotating shaft is rotatably mounted at equal intervals on the top of the support disk, and a collection drive component for controlling the rotation of the rotating shaft is mounted on the bottom of the support disk. The long gear is fixedly connected to the top of the rotating shaft, and the rack is fixedly connected to the bottom of the annular test box. The top and bottom ends of the long gear are respectively meshed with the rack and the first gear.

[0010] Preferably, the intermittent insect supply module includes an annular block, an insect box, a first retaining ring, a first baffle, a second retaining ring, a second baffle, a switch assembly, and an intermittent drive assembly. The annular block is fixedly connected to the top of the annular test box, and the insect box is fixedly connected to the top of the annular block. The end of the support arm is rotatably connected to the first retaining ring, and the outer side of the first retaining ring is equidistantly provided with first baffles. The outer side of the support arm away from the first retaining ring is rotatably provided with a second retaining ring, and the inner wall of the second retaining ring is equidistantly provided with second baffles. A control mechanism is provided on the outer side of the support arm. The device includes a switch assembly for opening and closing the insect-controlling box and an intermittent drive assembly for controlling the rotation of the second retaining ring. The annular block comprises multiple sector blocks, which are spliced ​​together to form the annular block. The sector blocks, the second retaining ring, and the central axis of the support arm are collinear. The bottom of the sector block is provided with a first sliding groove for the sliding of the first baffle. The top of the sector block is provided with an insect release groove that communicates with the annular test box and the insect box. The inner wall of the insect release groove is provided with an insect-attracting lamp. The bottom of the inner wall of the insect box is provided with a second sliding groove, and the second baffle is slidably disposed in the second sliding groove.

[0011] Preferably, the switch assembly includes a 7-shaped blocking plate, an elastic element, a blocking groove, and a pin. The 7-shaped blocking plate is provided inside the insect box. An elastic element is provided on the outside of the support arm to reset the 7-shaped blocking plate away from the support arm. A blocking groove that cooperates with the 7-shaped blocking plate is opened on the surface of the insect box. A pin is provided on the top of the 7-shaped blocking plate, and the top two ends of the 7-shaped blocking plate are rotatably connected to the inner wall of the blocking groove through the pin.

[0012] Preferably, the intermittent drive assembly includes a rotating disk, a figure-7 shaped frame, a second gear, a rotating column, a disc, an arc-shaped rack, an internal gear ring, and an intermittent drive component. The rotating disk is rotatably mounted on the top of the support arm, and the figure-7 shaped frame is fixedly connected to the outer side of the rotating disk at equal intervals. The internal gear ring is fixedly connected to the bottom end of the figure-7 shaped frame. The second gear is fixedly mounted on the outer side of the support arm and is located inside the internal gear ring. The arc-shaped rack is meshed with both the internal gear ring and the second gear.

[0013] Preferably, the mixing module includes a large turntable, a small turntable, a rotating shaft, a third gear, a rotating cylinder, a stirring column, and a mixing drive component. The large turntable and the small turntable are rotatably connected to the outer side of the support arm, with the large turntable located above the small turntable. A rotating shaft is rotatably mounted on the outer side of the support arm, and the rotating shaft is perpendicular to the support arm. A third gear is fixedly connected to the outer side of the rotating shaft. A rotating cylinder is located at the bottom of the small turntable on the outer side of the support arm, and the rotating cylinder is fixedly connected to the bottom of the small turntable. A mixing drive component is located outside the support arm, and the output shaft end of the mixing drive component is fixedly connected to the third gear. Both the large turntable and the small turntable have ring teeth on their surfaces. The third gear meshes with both the large turntable and the small turntable. Stirring columns are fixedly mounted at equal intervals at the bottom of the large turntable. Stirring plates are mounted at equal heights on the outer sides of the rotating cylinder and the stirring columns.

[0014] Preferably, one end of the support arm is provided with an opening, and the other end of the support arm is in a closed state. The cavity inside the support arm forms a conveying channel, and the side wall of the support arm at the closed end is provided with a flow structure that communicates with the inside of the medicine dispensing box.

[0015] The delivery and proportioning module includes a water tank, a water pump, a concentration proportioning component, a liquid pump, and pipelines. Pipelines are installed outside the water tank. A water pump is installed at the open end of the support arm, and the outlet of the water pump is connected to the open end of the support arm. The inlet of the water pump is connected to the pipelines. A liquid pump is installed at the bottom of the support arm, and the inlet of the liquid pump is connected to the inside of the support arm. The outlet of the liquid pump is connected to a medicine bottle via the concentration proportioning component. The concentration proportioning component is used to mix the medicine inside the medicine tank with the water in the water tank to prepare a medicine of the specified concentration.

[0016] Preferably, the flow structure includes at least one through hole, and the flow structure is arranged in at least one group along the axial direction of the support arm.

[0017] Preferably, the concentration mixing component includes a first baffle, a second baffle, a water supply pipe, a drug delivery pipe, a preparation pipe, an electric valve, a water flow meter, and a drug delivery flow meter. The first baffle and the second baffle are fixedly arranged in the delivery channel, with the first baffle located above the second baffle. Water supply pipes are equidistantly arranged at the bottom of the first baffle and pass through the first baffle to communicate with the top end of the support arm. Drug delivery pipes are equidistantly arranged at the top of the second baffle and pass through the second baffle to communicate with the bottom end of the support arm. The drug delivery pipes and water supply pipes are arranged correspondingly. A preparation pipe is installed on the outside of the medicine bottle. The outlet ends of both the water supply pipe and the drug delivery pipe are connected to the preparation pipe. Each preparation pipe communicates with the inside of the medicine bottle. A water flow meter and a drug delivery flow meter are respectively arranged on the outside of the water supply pipe and the drug delivery pipe. An electric valve is arranged on the outside of the preparation pipe.

[0018] A method for determining the toxicity of a whitefly control agent according to any one of the above claims includes the following steps:

[0019] S. Configure concentration gradient: Select the test drug, place the test drug into the dosing tank from the feed port, add an appropriate amount of water to dissolve it, start the mixing module, stir the test drug thoroughly to prepare the reagent, and then start the delivery and proportioning module to configure the required reagent concentration and deliver it to each of the dosing bottles in order to accurately assess the toxicity of the reagent.

[0020] S. Preparation of test materials: Place healthy adult or nymphal whiteflies into the intermittent insect supply module to ensure that there are enough whiteflies to conduct toxicity testing. The test materials are placed into the fan-shaped collection boxes by controlling the opening and closing of multiple fan-shaped collection boxes through the collection drive module.

[0021] S. Toxicity determination test: The intermittent insect supply module is activated to supply insects into the fan-shaped test box. Adult or nymph whiteflies are placed on the test material. The control valve is activated, and a set amount of pesticide is sprayed into the fan-shaped test box through the atomizing nozzle. Before the next insect supply, the survival status of the test insects from the previous test is observed and recorded through the fan-shaped test box.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The present invention, through the design of the fan-shaped test chamber, atomizing nozzle and control valve, enables testers to simultaneously conduct toxicity tests on different concentrations of the same agent, thereby improving the efficiency of toxicity testing and shortening the test cycle. This solves the problem in the prior art that it is impossible to conduct automated large-scale toxicity testing of different concentrations of control agents. It can also be configured with different agents for toxicity testing, increasing the practicality of the equipment.

[0024] 2. The present invention collects a drive component that drives a rotating shaft to rotate, which in turn drives a long gear that is coaxially fixed with the same rotating shaft to rotate. The rotation of the long gear drives the first gear to rotate, and the first gear drives the other long gears to rotate. The long gears mesh with the rack and pinion to drive multiple fan-shaped collection boxes to slide out or slide in simultaneously. This not only improves the convenience of use, but also keeps the position relatively fixed and avoids confusion.

[0025] 3. In the initial working state of the intermittent insect supply module of the present invention, the first baffle blocks the bottom of the insect release trough, preventing the insect release trough from connecting with the fan-shaped test box. The second baffle does not block the insect release trough and connects it with the insect box. By opening the switch assembly, enough whiteflies required for the experiment are placed into the insect box. The switch assembly is then closed, and the insect-attracting lamp on the inner side wall of the insect release trough is turned on. By controlling the intermittent drive assembly, the second baffle ring is driven to rotate, causing the second baffle to block the bottom of the insect box, preventing the insect release trough from connecting with the insect box. The intermittent drive assembly continues to rotate, causing the first baffle ring to rotate and causing the first baffle to not block the bottom of the insect release trough. At this time, the insect-attracting lamp... In the closed state, whiteflies are fed into the fan-shaped test chamber. The intermittent drive component rotates in reverse, sequentially causing the first baffle to block the bottom of the insect release trough, and the second baffle to not block the bottom of the insect chamber. At this time, the control valve opens and sprays the prepared agent through the atomizing nozzle, so that the collected whiteflies can be continuously and intermittently fed into the fan-shaped test chamber in batches. This ensures the continuity of toxicity testing, eliminates the need for manual intervention and reduces safety risks, and also solves the problem that putting too many in at once can lead to inaccurate test results and make it difficult to observe and analyze the whiteflies' response and changes to different concentrations of the agent.

[0026] 4. This invention drives the third gear to rotate by controlling the mixing drive component. The third gear meshes with the gear rings on the large turntable and the small turntable. At this time, the large turntable and the small turntable rotate in opposite directions, driving the drum and multiple stirring columns to rotate in different directions. This can stir the raw material evenly in a short time, improving stirring efficiency and enhancing mixing effect. By simultaneously starting the water pump and the liquid pump, the water pump draws water from the tank into the delivery channel through pipelines, while the liquid pump delivers the drug from the dosing tank into the delivery structure. The concentration ratio component mixes the drug and water to achieve the required concentration gradient for the experiment, and then delivers them to the drug containers in each of the sector-shaped test chambers. Each electric valve on each dosing pipe is opened. Based on the instructions from the flow meters on each water and drug delivery pipes, the flow rates of the water and drug in the water and drug delivery pipes are controlled to achieve the required concentration gradient and deliver the drugs to the respective drug containers. During the dosing process, the electric valves in each dosing pipe automatically close according to the actual situation, ensuring a precise concentration gradient and solving the problem of confusion caused by multiple concentration gradients in the dosing process. Attached Figure Description

[0027] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0028] Figure 2 The image shown is an enlarged view of part A of the present invention.

[0029] Figure 3 The diagram shown is an exploded view of the test mechanism of this invention.

[0030] Figure 4 The diagram shown is an exploded view of the intermittent drive module of the present invention.

[0031] Figure 5 The diagram shown is an exploded view of the dispensing module of this invention.

[0032] Figure 6 The diagram shown is a three-dimensional structural schematic of the concentration ratio component of the present invention.

[0033] In the diagram: 1. Dispensing mechanism; 11. Dispensing box; 111. Feed inlet; 12. Mixing module; 121. Large turntable; 1211. Ring gear; 122. Small turntable; 123. Rotating shaft; 124. Third gear; 125. Rotary drum; 1251. Stirring plate; 126. Stirring column; 127. Mixing drive component; 13. Conveying and proportioning module; 131. Water tank; 132. Water pump; 133. Concentration proportioning component; 1331. First stop block; 1332. Second stop; 1333. Water delivery pipe; 1334. Medicine delivery pipe; 1335. Preparation pipe; 1336. Electric valve; 1337. Water flow meter; 1338. Medicine flow meter; 134. Liquid pump; 135. Pipeline; 2. Testing mechanism; 21. Support arm; 211. Delivery channel; 212. Flow structure; 22. Annular test chamber; 221. Fan-shaped test chamber; 23. Medicine container; 24. Atomizing nozzle; 25. Fan-shaped collector Box; 26. Collection drive module; 261. Support plate; 262. Rotating shaft; 263. Long gear; 264. Rack; 265. First gear; 266. Collection drive component; 27. Intermittent insect supply module; 271. Annular block; 2711. Sector block; 27111. First chute; 27112. Insect release trough; 272. Insect box; 2721. Second chute; 273. First retaining ring; 274. First baffle; 275. Second retaining ring; 2 76. Second baffle; 277. Switch assembly; 2771. L-shaped baffle; 2772. Elastic element; 2773. Baffle groove; 2774. Pin; 278. Intermittent drive assembly; 2781. Rotating disk; 2782. L-shaped frame; 2783. Second gear; 2784. Rotating column; 2785. Disc; 2786. Arc rack; 2787. Internal gear ring; 2788. Intermittent drive assembly; 28. Nozzle; 29. ​​Control valve. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-6 This invention provides a technical solution: a toxicity testing system for a whitefly control agent, comprising:

[0036] The drug dispensing unit 1 is used to dispense drugs and deliver them to the testing unit 2.

[0037] The testing mechanism 2 includes a support arm 21, a ring-shaped test box 22 fixedly fitted with the support arm 21, a medicine bottle 23, an atomizing nozzle 24, a fan-shaped collection box 25, a collection drive module 26, and an intermittent insect supply module 27. The ring-shaped test box 22 includes multiple fan-shaped test boxes 221, and the multiple fan-shaped test boxes 221 are spliced ​​to form the ring-shaped test box 22. Both the fan-shaped collection box 25 and the fan-shaped test box 221 can be made of borosilicate glass. Borosilicate glass has properties such as high transparency, easy cleaning, oil resistance, and acid and alkali resistance, and it is also convenient to observe the test situation at any time. The medicine bottle 23 is fixedly connected to the top of the fan-shaped test box 221, and the fan-shaped collection box 25 is slidably set at the bottom of the fan-shaped test box 221. The medicine bottle 23 is connected to the medicine outlet end of the medicine bottle 23, and the atomizing nozzle 24 is connected to the end of the nozzle 28. A control valve 29 is set on the outside of the nozzle 28.

[0038] It should be noted that the design of the fan-shaped test chamber 221, the atomizing nozzle 24 and the control valve 29 enables the test personnel to simultaneously conduct toxicity tests on different concentrations of the same agent, which improves the efficiency of toxicity testing and shortens the test cycle. This solves the problem that existing technologies cannot automatically conduct large-scale toxicity tests on different concentrations of control agents. It also allows for the configuration of different agents for toxicity testing, increasing the practicality of the equipment.

[0039] The bottom of the fan-shaped collection box 25 is provided with a collection drive module 26 for controlling the opening and closing of the fan-shaped collection box 25, and the top of the annular test box 22 is provided with an intermittent insect supply module 27 for intermittently supplying insects into the fan-shaped test box 221.

[0040] It should be noted that the collection drive module 26 controls the opening and closing of multiple fan-shaped collection boxes 25. The design of the collection drive module 26 not only improves the ease of use, but also maintains the relative fixation of the positions to avoid confusion. The intermittent insect supply module 27 intermittently supplies insects into the fan-shaped test box 221, which can continuously and intermittently send the collected whiteflies into the fan-shaped test box 221 in batches. This ensures the continuity of toxicity determination, eliminates the need for manual intervention, reduces safety risks, and solves the problem that putting too many in at once can lead to inaccurate test results and make it difficult to observe and analyze the whiteflies' response and changes to different concentrations of pesticides.

[0041] The dispensing mechanism 1 includes a dispensing box 11, a mixing module 12, and a conveying and proportioning module 13. The side wall of the dispensing box 11 is provided with an inlet 111. The mixing module 12 is provided inside the dispensing box 11. The outside of the dispensing box 11 is provided with a conveying and proportioning module 13 for conveying the medicine mixed by the mixing module 12 in the dispensing box 11 to the medicine bottle 23.

[0042] It should be noted that, through the design of the mixing module 12 and the delivery ratio module 13, the original drug can be mixed evenly in the drug mixing box 11 and automatically configured into the concentration gradient required for the test, thereby solving the problem of multiple drug concentration gradients that are easy to cause confusion.

[0043] Please see Figures 1-3 The collection drive module 26 includes a support disk 261, a rotating shaft 262, a long gear 263, a rack 264, a first gear 265, and a collection drive component 266, which are fixedly engaged with the support arm 21. The first gear 265 is rotatably mounted on the top of the support arm 21. The rotating shaft 262 is rotatably mounted on the top of the support disk 261 at equal intervals. The collection drive component 266 for controlling the rotation of the rotating shaft 262 is mounted on the bottom of the support disk 261. The long gear 263 is fixedly connected to the top of the rotating shaft 262. The rack 264 is fixedly connected to the bottom of the annular test box 22. The top and bottom ends of the long gear 263 are respectively meshed with the rack 264 and the first gear 265.

[0044] It should be noted that the collecting drive unit 266 includes a motor, which can be wirelessly controlled. By using a wireless communication module to send control signals to the motor, the motor can be controlled to operate, making motor control more flexible and convenient. During operation, the collecting drive unit 266 drives a rotating shaft 262 to rotate, which in turn drives a long gear 263 that is coaxially fixed with the same rotating shaft 262. The rotation of the long gear 263 drives the first gear 265 to rotate, and the first gear 265 drives the other long gears 263 to rotate. The long gears 263 mesh with the rack 264 to drive multiple fan-shaped collecting boxes 25 to slide out or slide in simultaneously. This not only improves the convenience of use, but also maintains the relative fixation of the position and avoids confusion.

[0045] Please see Figure 3 and Figure 4The intermittent insect supply module 27 includes an annular block 271, an insect box 272, a first retaining ring 273, a first baffle 274, a second retaining ring 275, a second baffle 276, a switch assembly 277, and an intermittent drive assembly 278. The annular block 271 is fixedly connected to the top of the annular test box 22, and the insect box 272 is fixedly connected to the top of the annular block 271. The end of the support arm 21 is rotatably connected to the first retaining ring 273, and the first baffle 274 is equidistantly arranged on the outer side of the first retaining ring 273. The outer side of the support arm 21 away from the first retaining ring 273 is rotatably arranged with a second retaining ring 275, and the inner wall of the second retaining ring 275 is equidistantly arranged with second baffles 276. The outer side of the support arm 21 is provided with a switch assembly 277 for controlling the opening and closing of the insect box 272 and an intermittent drive assembly 278 for controlling the rotation of the second retaining ring 275. The annular block 271 includes multiple sector blocks 2711, and the multiple sector blocks... 2711 are spliced ​​to form a ring block 271. The fan-shaped block 2711, the second baffle ring 275 and the central axis of the support arm 21 are collinear. Both the fan-shaped block 2711 and the insect box 272 can be made of borosilicate glass. Borosilicate glass has high transparency, is easy to clean, oil-resistant and acid and alkali-resistant. It is also convenient to observe the survival of whiteflies at any time. Each fan-shaped block 2711 has a first groove 27111 at the bottom for each first baffle 274 to slide. Each fan-shaped block 2711 has an insect release groove 27112 that connects the fan-shaped test box 221 and the insect box 272. Each insect release groove 27112 has an insect-attracting lamp on its inner side wall. The insect-attracting lamp is turned on only when the insect release groove 27112 is connected to the insect box 272. The insect box 272 has a second groove 2721 on its bottom side wall. The second groove 2721 slides and corresponds one-to-one with the second baffle 276.

[0046] The bottom of the sector block 2711 is provided with a first groove 27111 for sliding the first baffle 274. The top of the sector block 2711 is provided with an insect release groove 27112 that communicates with the annular test box 22 and the insect box 272. An insect-attracting lamp is provided on the inner wall of the insect release groove 27112. The bottom of the inner wall of the insect box 272 is provided with a second groove 2721. The second baffle 276 is slidably disposed in the second groove 2721.

[0047] It should be noted that in the initial working state of the intermittent insect supply module 27, the first baffle 274 blocks the bottom of the insect release trough 27112, preventing the insect release trough 27112 from connecting with the fan-shaped test box 221. The second baffle 276 does not block the insect release trough 27112 from connecting with the insect box 272. By opening the switch assembly 277, enough whiteflies required for the experiment are placed into the insect box 272. After closing the switch assembly 277, the insect-attracting lamp on the inner side wall of the insect release trough 27112 is turned on. By controlling the intermittent drive assembly 278, the second baffle ring 275 is driven to rotate, causing the second baffle 276 to block the bottom of the insect box 272, preventing the insect release trough 27112 from connecting with the insect box 272. The intermittent drive assembly 278 continues to rotate, causing the first baffle ring 273 to rotate, which in turn drives the second baffle ring 276 to connect with the insect box 272. When the first baffle 274 fails to block the bottom of the insect release trough 27112, the insect-attracting lamp is off, and the whiteflies are sent into the fan-shaped test chamber 221. The intermittent drive component 278 rotates in the opposite direction, causing the first baffle 274 to block the bottom of the insect release trough 27112 and the second baffle 276 to fail to block the bottom of the insect box 272. At this time, the control valve 29 opens and sprays the prepared agent through the atomizing nozzle 24, so that the collected whiteflies can be continuously and intermittently sent into the fan-shaped test chamber 221 in batches. This ensures the continuity of toxicity testing, eliminates the need for manual intervention, reduces safety risks, and solves the problem that putting too many in at once can lead to inaccurate test results and make it difficult to observe and analyze the whiteflies' reactions and changes to different concentrations of the agent.

[0048] Please see Figure 4 The switch assembly 277 includes a 7-shaped blocking plate 2771, an elastic element 2772, a blocking groove 2773, and a pin 2774. The 7-shaped blocking plate 2771 is provided inside the insect box 272. An elastic element 2772 is provided on the outside of the support arm 21 for resetting the 7-shaped blocking plate 2771 away from the support arm 21. A blocking groove 2773 that cooperates with the 7-shaped blocking plate 2771 is provided on the surface of the insect box 272. A pin 2774 is provided on the top of the 7-shaped blocking plate 2771, and the two ends of the top of the 7-shaped blocking plate 2771 are rotatably connected to the inner wall of the blocking groove 2773 through the pin 2774.

[0049] It should be noted that the elastic element 2772 includes two springs. One end of each spring is fixedly connected to the bottom of the vertical part of the 7-shaped baffle 2771 and to the side of the support arm. The other end of each spring is fixedly connected to the inner wall of the insect box 272. When the whitefly is placed into the insect box 272, the 7-shaped baffle 2771 is pushed towards the support arm 21 to place the whitefly. At this time, the spring is in a stretched state. After placement, the 7-shaped baffle 2771 can quickly return to its initial position due to the elastic force of the spring, which can effectively prevent the whitefly from escaping and reduce the workload of the test personnel.

[0050] Please see Figure 4The intermittent drive assembly 278 includes a rotating disk 2781, a 7-shaped frame 2782, a second gear 2783, a rotating column 2784, a disc 2785, an arc-shaped rack 2786, an internal gear ring 2787, and an intermittent drive component 2788. The rotating disk 2781 is rotatably mounted on the top of the support arm 21, and the 7-shaped frame 2782 is fixedly connected to the outer side of the rotating disk 2781 at equal intervals. The internal gear ring 2787 is fixedly connected to the bottom end of the 7-shaped frame 2782. The second gear 2783 is fixedly mounted on the outer side of the support arm 21, and the second gear 2783 is located inside the internal gear ring 2787. The arc-shaped rack 2786 is meshed with the internal gear ring 2787 and the second gear 2783.

[0051] It should be noted that during operation, the intermittent drive component 2788 drives the disc 2785 to rotate. The arc-shaped rack 2786, coaxially fixed to the outer wall of the disc 2785, drives the internal gear ring 2787 to rotate. The internal gear ring 2787 drives the second retaining ring 275 to rotate. The second baffle 276 slides in the second groove 2721 to block the insect release trough 27112 and the insect box 272. The intermittent drive component 2788 continues to rotate. The arc-shaped rack 2786, coaxially fixed to the outer wall of the disc 2785, meshes with the second gear 2783 for transmission. The rotation of the second gear 2783 drives the rotating column 2784 to rotate. The rotation of the rotating column 2784 drives the first retaining ring 273 to rotate. Plate 274 slides within the first groove 27111 to connect the insect release trough 27112 with the fan-shaped test box 221. At this time, whiteflies enter the fan-shaped test box 221 from the insect release trough 27112. The intermittent drive component 2788 reverses, causing the first baffle 274 to block the bottom of the insect release trough 27112 and the second baffle 276 to not block the bottom of the insect box 272. The whiteflies in the insect box 272 then enter the insect release trough 27112, preparing for repeated experiments. This ensures the continuity of toxicity testing, eliminates the need for manual intervention, reduces safety risks, and solves the problem that putting too many whiteflies in at once can lead to inaccurate test results and make it difficult to observe and analyze the whiteflies' reactions and changes to different concentrations of pesticides.

[0052] Please see Figure 5The mixing module 12 includes a large turntable 121, a small turntable 122, a rotating shaft 123, a third gear 124, a rotating drum 125, a stirring column 126, and a mixing drive component 127. The large turntable 121 and the small turntable 122 are rotatably connected to the outer side of the support arm 21, with the large turntable 121 located above the small turntable 122. The rotating shaft 123 is rotatably mounted on the outer side of the support arm 21 and is perpendicular to the support arm 21. The third gear 124 is fixedly connected to the outer side of the rotating shaft 123. The rotating drum 125 is located at the bottom of the small turntable 122 on the outer side of the support arm 21 and is fixedly connected to the bottom of the small turntable 122. The mixing drive component is located outside the support arm 21. 127, and the output shaft end of the adjustment drive 127 is fixedly connected to the third gear 124. The adjustment drive 127 includes a motor, which can be wirelessly controlled. Both the large turntable 121 and the small turntable 122 are provided with ring teeth 1211. The third gear 124 is meshed with the large turntable 121 and the small turntable 122 respectively. Both the large turntable 121 and the small turntable 122 are provided with ring teeth 1211 that mesh with the third gear 124 for transmission. The rotation of the third gear 124 drives the large turntable 121 and the small turntable 122 to rotate in opposite directions on the same axis. The bottom of the large turntable 121 is fixedly connected with stirring columns 126 at equal intervals. The outer sides of the rotating drum 125 and the stirring columns 126 are provided with stirring plates 1251 at equal heights.

[0053] It should be noted that during operation, the control and dispensing drive component 127 drives the third gear 124 to rotate. The third gear 124 meshes with the gear rings on the large turntable 121 and the small turntable 122. At this time, the large turntable 121 and the small turntable 122 rotate in opposite directions, causing the rotating drum 125 and multiple stirring columns 126 to rotate in different directions. This can quickly and evenly mix the raw materials, improving the stirring efficiency and enhancing the mixing effect.

[0054] Please see Figure 1 , Figure 3 and 6 One end of the support arm 21 is provided with an opening, and the other end of the support arm 21 is in a closed state. The cavity inside the support arm 21 forms a conveying channel 211. The side wall of the support arm 21 at the closed end is provided with a flow structure 212 that communicates with the inside of the medicine box 11.

[0055] The delivery and proportioning module 13 includes a water tank 131, a water pump 132, a concentration proportioning component 133, a liquid pump 134, and a pipeline 135. The water tank 131 is externally connected to the pipeline 135. The water pump 132 is installed at the open end of the support arm 21, and the outlet end of the water pump 132 is connected to the open end of the support arm 21. The inlet end of the water pump 132 is connected to the pipeline 135. The liquid pump 134 is installed at the bottom of the support arm 21. The inlet end of the liquid pump 134 is connected to the inside of the support arm 21. The outlet end of the liquid pump 134 is connected to the medicine bottle 23 through the concentration proportioning component 133. The concentration proportioning component 133 is used to mix the medicine inside the medicine box 11 with the water in the water tank 131 to prepare a concentrated medicine.

[0056] It should be noted that during operation, the water pump 132 and the liquid pump 134 are started simultaneously. The water pump 132 draws water from the water tank 131 into the delivery channel 211 through the pipe 135, and the liquid pump 134 delivers the medicine from the dosing tank 11 into the delivery structure. After passing through the concentration ratio component 133, the medicine and water are configured into the concentration gradient required for the test and delivered to the medicine bottles 23 in each sector test box 221. This solves the problem of confusion caused by multiple concentration gradients in the dosing.

[0057] Please see Figure 3 The flow structure 212 includes at least one through hole, and at least one set of the flow structure 212 is axially upward along the support arm 21, which helps the drug to flow quickly and smoothly into the delivery channel 211, improves flow efficiency, and avoids local blockage or unevenness.

[0058] Please see Figure 6 The concentration mixing component 133 includes a first stop 1331, a second stop 1332, a water delivery pipe 1333, a drug delivery pipe 1334, a preparation pipe 1335, an electric valve 1336, a water flow meter 1337, and a drug delivery flow meter 1338. The first stop 1331 and the second stop 1332 are fixedly installed within the delivery channel 211, with the first stop 1331 located above the second stop 1332. Water delivery pipes 1333 are equidistantly arranged at the bottom of the first stop 1331, passing through the first stop 1331 and communicating with the top of the support arm 21. The second stop 1332... The top is equidistantly provided with drug delivery tubes 1334, and the end of the drug delivery tube 1334 passes through the second stop 1332 and is connected to the bottom of the support arm 21. The drug delivery tubes 1334 and water delivery tubes 1333 are arranged accordingly. A preparation tube 1335 is installed on the outside of the medicine bottle 23. The liquid outlets of the water delivery tubes 1333 and drug delivery tubes 1334 are connected to the preparation tubes 1335. Each preparation tube 1335 is connected to the inside of the medicine bottle 23. A water flow meter 1337 and a drug flow meter 1338 are respectively installed on the outside of the water delivery tubes 1333 and drug delivery tubes 1334. An electric valve 1336 is installed on the outside of the preparation tube 1335.

[0059] It should be noted that during operation, all electric valves 1336 on each configuration pipe are opened. According to the instructions of the water flow meter 1337 on each water pipe 1333 and the drug flow meter 1338 on each drug delivery pipe 1334, the water flow in the water pipe 1333 and the drug flow in the drug delivery pipe 1334 are controlled to achieve the required concentration gradient ratio for the experiment and deliver it to each drug bottle 23. During the configuration process, the electric valves 1336 in each configuration pipe automatically close according to the actual situation, which can obtain a precise concentration gradient ratio, thereby solving the problem of confusion caused by multiple drug concentration gradients.

[0060] Please see Figures 1-6 A method for determining the toxicity of a whitefly control agent according to any one of the above methods, comprising the following steps:

[0061] S1. Configure concentration gradient: Select the test drug, place the test drug into the dosing tank 11 through the feed port 111, add an appropriate amount of water to dissolve it, start the mixing module 12, and fully stir the test drug to prepare the reagent. Then start the delivery and proportioning module 13, configure the required reagent concentration and deliver it to each dosing bottle 23 in order to accurately assess the toxicity of the reagent.

[0062] S2. Preparation of test materials: Place healthy adult or nymphal whiteflies into the intermittent insect supply module 27 to ensure that there are enough whiteflies to conduct the toxicity test. The test materials are placed into the fan-shaped collection box 25 by controlling the opening and closing of multiple fan-shaped collection boxes 25 through the collection drive module 26.

[0063] S3. Toxicity test: Start the intermittent insect supply module 27 to supply insects into the fan-shaped test box 221. Adult or nymph whiteflies are placed on the test material. Start the control valve 29 and spray the set amount of agent into the fan-shaped test box 221 through the atomizing nozzle 24. Before the next insect supply, observe and record the survival status of the test insects from the previous test through the fan-shaped test box 221.

[0064] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0065] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A toxicity testing system for a whitefly control agent, characterized in that, include: The drug dispensing unit (1) and the testing unit (2) are provided, wherein the drug dispensing unit (1) is used to dispense drugs and deliver them to the testing unit (2). The testing mechanism (2) includes a support arm (21), an annular test box (22) fixedly fitted with the support arm (21), a medicine bottle (23), an atomizing nozzle (24), a fan-shaped collection box (25), a collection drive module (26), and an intermittent insect supply module (27). The annular test box (22) includes multiple fan-shaped test boxes (221), and the multiple fan-shaped test boxes (221) are spliced ​​to form the annular test box (22). The top of the fan-shaped test box (221) is fixedly connected to a medicine bottle (23), and the bottom of the fan-shaped test box (221) is slidably provided with a fan-shaped collection box (25). The medicine bottle (23) is connected to a spray pipe (28) at the medicine outlet end, and the end of the spray pipe (28) is connected to an atomizing nozzle (24). The outside of the spray pipe (28) is provided with a control valve (29). The bottom of the fan-shaped collection box (25) is provided with a collection drive module (26) for controlling the opening and closing of the fan-shaped collection box (25), and the top of the annular test box (22) is provided with an intermittent insect supply module (27) for intermittently supplying insects into the fan-shaped test box (221). The drug dispensing mechanism (1) includes a drug dispensing box (11), a dispensing module (12) and a delivery and proportioning module (13). The side wall of the drug dispensing box (11) is provided with an inlet (111). The dispensing module (12) is provided inside the drug dispensing box (11). The outside of the drug dispensing box (11) is provided with a delivery and proportioning module (13) for conveying the drug that the dispensing module (12) has mixed in the drug dispensing box (11) to the medicine bottle (23). The intermittent insect supply module (27) includes an annular block (271), an insect box (272), a first retaining ring (273), a first baffle (274), a second retaining ring (275), a second baffle (276), a switch assembly (277), and an intermittent drive assembly (278). The annular block (271) is fixedly connected to the top of the annular test box (22), and the insect box (272) is fixedly connected to the top of the annular block (271). The end of the support arm (21) is rotatably connected to the first retaining ring (273), and the first baffle (274) is equidistantly arranged on the outer side of the first retaining ring (273). The outer side of the support arm (21) away from the first retaining ring (273) is rotatably arranged with a second retaining ring (275), and the inner wall of the second retaining ring (275) is equidistantly arranged with second baffles (276). The outer side of the support arm (21) is provided with a control for opening the insect box (272). The ring block (271) includes a closed switch assembly (277) and an intermittent drive assembly (278) for controlling the rotation of the second retaining ring (275). The ring block (271) includes multiple sector blocks (2711), and the multiple sector blocks (2711) are spliced ​​together to form the ring block (271). The central axis of the ring block (271), the second retaining ring (275) and the support arm (21) are collinear. The bottom of the sector block (2711) is provided with a first slide groove (27111) for the sliding of the first baffle (274). The top of the sector block (2711) is provided with an insect release groove (27112) that communicates with the ring test box (22) and the insect box (272). The inner wall of the insect release groove (27112) is provided with an insect-attracting lamp. The bottom of the inner wall of the insect box (272) is provided with a second slide groove (2721). The second baffle (276) is slidably disposed in the second slide groove (2721). The switch assembly (277) includes a 7-shaped blocking plate (2771), an elastic element (2772), a blocking groove (2773), and a pin (2774). The insect box (272) is provided with a 7-shaped blocking plate (2771). The support arm (21) is provided with an elastic element (2772) for resetting the 7-shaped blocking plate (2771) away from the support arm (21). The insect box (272) is provided with a blocking groove (2773) that cooperates with the 7-shaped blocking plate (2771) on its surface. The top of the 7-shaped blocking plate (2771) is provided with a pin (2774), and the top two ends of the 7-shaped blocking plate (2771) are rotatably connected to the inner wall of the blocking groove (2773) through the pin (2774). The intermittent drive assembly (278) includes a rotating disk (2781), a 7-shaped frame (2782), a second gear (2783), a rotating column (2784), a disc (2785), an arc-shaped rack (2786), an internal gear ring (2787), and an intermittent drive component (2788). The rotating disk (2781) is rotatably mounted on the top of the support arm (21), and the 7-shaped frame (2782) is fixedly connected at equal intervals to the outer side of the rotating disk (2781). The internal gear ring (2787) is fixedly connected to the bottom end of the 7-shaped frame (2782). The second gear (2783) is fixedly mounted on the outer side of the support arm (21), and the second gear (2783) is located inside the internal gear ring (2787). The arc-shaped rack (2786) is meshed with the internal gear ring (2787) and the second gear (2783).

2. The toxicity testing system for a whitefly control agent according to claim 1, characterized in that: The collection drive module (26) includes a support disk (261), a rotating shaft (262), a long gear (263), a rack (264), a first gear (265), and a collection drive component (266) that are fixedly fitted to the support arm (21). The first gear (265) is rotatably provided on the top of the support arm (21), and the rotating shaft (262) is equidistantly rotatably provided on the top of the support disk (261). The collection drive component (266) for controlling the rotation of the rotating shaft (262) is provided at the bottom of the support disk (261). The long gear (263) is fixedly connected to the top of the rotating shaft (262), and the rack (264) is fixedly connected to the bottom of the annular test box (22). The top and bottom ends of the long gear (263) are respectively meshed with the rack (264) and the first gear (265).

3. The toxicity testing system for a whitefly control agent according to claim 1, characterized in that: The mixing module (12) includes a large turntable (121), a small turntable (122), a rotating shaft (123), a third gear (124), a rotating drum (125), a stirring column (126), and a mixing drive component (127). The large turntable (121) and the small turntable (122) are rotatably connected to the outer side of the support arm (21), and the large turntable (121) is located above the small turntable (122). The rotating shaft (123) is rotatably arranged on the outer side of the support arm (21), and the rotating shaft (123) is perpendicular to the support arm (21). The third gear (124) is fixed to the outer side of the rotating shaft (123). The outer side of the support arm (21) is located on the small turntable (125). A rotating drum (125) is provided at the bottom of the small turntable (122), and the rotating drum (125) is fixed to the bottom of the small turntable (122). An adjustment drive (127) is provided on the outside of the support arm (21), and the output shaft end of the adjustment drive (127) is fixed to the third gear (124). The surfaces of the large turntable (121) and the small turntable (122) are provided with ring teeth (1211). The third gear (124) is meshed with the large turntable (121) and the small turntable (122) respectively. Stirring columns (126) are fixed at equal distances at the bottom of the large turntable (121). Stirring plates (1251) are provided at equal heights on the outer sides of the rotating drum (125) and the stirring columns (126).

4. The toxicity testing system for a whitefly control agent according to claim 3, characterized in that: One end of the support arm (21) is provided with an opening, and the other end of the support arm (21) is in a closed state. The cavity inside the support arm (21) forms a conveying channel (211). The side wall of the support arm (21) at the closed end is provided with a flow structure (212) that communicates with the inside of the medicine box (11). The delivery and proportioning module (13) includes a water tank (131), a water pump (132), a concentration proportioning component (133), a liquid pump (134), and a pipe (135). The water tank (131) is provided with a pipe (135) on its exterior. The water pump (132) is installed at the open end of the support arm (21), and the water outlet of the water pump (132) is connected to the open end of the support arm (21). The water inlet of the water pump (132) is connected to the pipe (135). The liquid pump (134) is installed at the bottom of the support arm (21). The liquid inlet of the liquid pump (134) is connected to the inside of the support arm (21). The liquid outlet of the liquid pump (134) is connected to the medicine bottle (23) through the concentration proportioning component (133). The concentration proportioning component (133) is used to mix the medicine inside the medicine box (11) with the water in the water tank (131) to prepare the medicine of the specified concentration.

5. The toxicity testing system for a whitefly control agent according to claim 4, characterized in that: The flow structure (212) includes at least one through hole, and the flow structure (212) is arranged in at least one group along the axial direction of the support arm (21).

6. The toxicity testing system for a whitefly control agent according to claim 5, characterized in that: The concentration mixing component (133) includes a first stop (1331), a second stop (1332), a water supply pipe (1333), a medicine supply pipe (1334), a preparation pipe (1335), an electric valve (1336), a water flow meter (1337), and a medicine flow meter (1338). The first stop (1331) and the second stop (1332) are fixedly arranged in the delivery channel (211), with the first stop (1331) located above the second stop (1332). The bottom of the first stop (1331) is equidistantly provided with water supply pipes (1333), and the water supply pipes (1333) pass through the first stop (1331) and communicate with the top end of the support arm (21). The top of the second stop (1332) is... Equally spaced drug delivery tubes (1334) are provided, and the end of the drug delivery tube (1334) passes through the second stop (1332) and communicates with the bottom of the support arm (21). The drug delivery tube (1334) is correspondingly provided with the water delivery tube (1333). A preparation tube (1335) is installed on the outside of the medicine bottle (23). The liquid outlet of the water delivery tube (1333) and the drug delivery tube (1334) are both connected to the preparation tube (1335). Each preparation tube (1335) is connected to the inside of the medicine bottle (23). A water flow meter (1337) and a drug flow meter (1338) are respectively provided on the outside of the water delivery tube (1333) and the drug delivery tube (1334). An electric valve (1336) is provided on the outside of the preparation tube (1335).

7. The method for determining the toxicity of a whitefly control agent according to any one of claims 1-6, characterized in that, Includes the following steps: S1. Configure concentration gradient: Select the test drug, place the test drug into the dosing box (11) from the feed port (111), add an appropriate amount of water to dissolve, start the mixing module (12), mix the test drug thoroughly to prepare the drug, then start the delivery and proportioning module (13), configure the required drug concentration and deliver it to each of the drug bottles (23) so as to accurately assess the toxicity of the drug; S2. Preparation of test materials: Place healthy adult or nymphal whiteflies into the intermittent insect supply module (27) to ensure that there are enough whiteflies to conduct a toxicity test. The test materials are placed into the fan-shaped collection box (25) by controlling the opening and closing of multiple fan-shaped collection boxes (25) through the collection drive module (26). S3. Toxicity test: Start the intermittent insect supply module (27) to supply insects into the fan-shaped test box (221). Adult or nymph whiteflies are placed on the test material. Start the control valve (29) and spray the set amount of agent into the fan-shaped test box (221) through the atomizing nozzle (24). Before the next insect supply, observe and record the survival status of the previous test insects through the fan-shaped test box (221).

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