Multi-channel pesticide residue rapid detection device

Abstract

The utility model discloses a multichannel pesticide residue rapid detection device, and relates to the technical field of pesticide detection. The device comprises a detection table, the top of the detection table is provided with an inclined plane, the inclined plane of the detection table is provided with a plurality of detection channels for placing test paper in an array manner, the detection table is provided with a pressing part for fixing the test paper, and a liquid injection pipe is arranged on the detection table and located at the higher end of the inclined plane through a supporting rod; different pieces of test paper are pressed in different detection channels, a stock solution can be distributed into the multiple detection channels and matched with the different pieces of test paper for detection of different components, the stock solution can be detected in multiple directions at the same time, the detection efficiency is effectively improved, and after detection is completed, a first valve is opened, so that the detection efficiency is improved. Clear water can be used for flushing the liquid injection pipe, the branch pipes and the detection channel, and waste water generated by flushing flows into the collecting shell, so that the part of the whole detection device, which is in contact with the stock solution, can be quickly cleaned, the cleaning is convenient, and the practicability is improved.

Description

Technical Field

[0001] This application relates to the field of pesticide detection technology, specifically to a multi-channel rapid pesticide residue detection device. Background Technology

[0002] Pesticide residues refer to the total amount of pesticide parent material, derivatives, metabolites, degradation products, and impurities that remain in the environment, organisms, and food after pesticide use. The main pesticides causing excessive pesticide residues in vegetables are organophosphorus pesticides and carbamate pesticides that are banned from use in vegetable production in some countries, such as methamidophos, dimethoate, phorate, parathion, and methyl parathion. One of the most effective ways to control the harm of pesticide residues to the human body is to strengthen the detection of pesticide residues in food.

[0003] Existing pesticide residue detection devices typically employ rapid test strips, which combine enzyme inhibition or immunoassay methods to detect the presence of a specific type of pesticide in a sample through a specific chemical reaction. This method is simple and convenient to use. However, existing detection devices usually use only one test strip, allowing for single-component detection of the stock solution at a time. To detect other components, a waiting period is required (one set of components is tested before another test strip is placed for testing another component). Furthermore, the device needs to be cleaned after each test. The single-test-strip setup requires cleaning after each test to avoid affecting subsequent tests, making cleaning inconvenient. Therefore, this application proposes a multi-channel rapid pesticide residue detection device. Utility Model Content

[0004] The purpose of this application is to provide a multi-channel rapid detection device for pesticide residues in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application specifically adopts the following technical solution:

[0006] A multi-channel rapid pesticide residue detection device includes:

[0007] The testing platform has a sloping top, and the sloping surface of the testing platform has several testing channels for placing test strips. The testing platform is equipped with a holding member for fixing the test strips. A liquid injection tube is installed on the testing platform at the higher end of the sloping surface via a support rod. The bottom end of the liquid injection tube is connected to several branch tubes, and each branch tube corresponds to one of the several testing channels. A cleaning tank is installed on the top of the testing platform via a support rod. The bottom of the cleaning tank is connected to a cleaning tube coaxial with the liquid injection tube. A first valve is installed on the cleaning tube. A collection shell is installed on the testing platform at the lower end of the sloping surface.

[0008] Furthermore, the top of the injection tube is connected to a conical connector.

[0009] Furthermore, a sleeve is slidably fitted at the bottom end of the cleaning tube, and a conical shell is connected to the bottom end of the sleeve. The inner wall of the conical shell is connected to a conical diversion shell through a support rod.

[0010] Furthermore, a ring plate is fixed on the cleaning tube, and an abutment spring sleeved on the cleaning tube is installed between the ring plate and the sleeve. A sealing ring is provided between the conical shell and the conical sleeve.

[0011] Furthermore, the pressing component includes a portal frame mounted on the testing table, with a plurality of sliding rods slidingly passing through the portal frame and each of the sliding rods corresponding to a plurality of testing channels. A pressing frame is provided at one end of each sliding rod, and a limiting spring sleeved on the sliding rod is installed between the pressing frame and the portal frame.

[0012] Furthermore, the inner bottom wall of the detection channel is provided with an insert groove, and the test paper is embedded in the insert groove.

[0013] Furthermore, a second valve is installed on each of the aforementioned branch pipes.

[0014] Furthermore, a slot is provided on one side of the testing platform, and the collection shell is movably inserted into the slot.

[0015] The beneficial effects of this application are as follows: In this application, different test strips are pressed in different detection channels, and the stock solution can be diverted to several detection channels. Different components can be detected by different test strips. The stock solution can be detected in multiple directions at the same time, which effectively improves the detection efficiency. After the detection is completed, the first valve is opened, and clean water can be used to rinse the injection tube, the branch tube and the detection channel. The wastewater generated by rinsing flows back into the collection shell, which can quickly clean the parts of the detection device that come into contact with the stock solution, making cleaning convenient and thus improving practicality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of this application;

[0017] Figure 2 This is a three-dimensional structural sectional view of this application;

[0018] Figure 3 This is yet another three-dimensional structural sectional view of this application;

[0019] Figure 4 This is a partial three-dimensional structural diagram of this application;

[0020] Figure 5 This is a partial three-dimensional structural sectional view of this application;

[0021] Figure 6 This application Figure 2Enlarged view of point A in the middle;

[0022] Figure 7 This application Figure 5 Enlarged view at point B in the middle;

[0023] Reference numerals in the attached diagram: 1. Testing platform; 2. Testing channel; 3. Injection pipe; 4. Branch pipe; 5. Cleaning tank; 6. Cleaning pipe; 7. First valve; 8. Collection shell; 9. Holding component; 10. Conical receiving shell; 11. Sleeve; 12. Conical sleeve; 13. Conical diverter shell; 14. Ring plate; 15. Contact spring; 16. Sealing ring; 17. Insert groove; 18. Second valve; 19. Slot; 901. Portal frame; 902. Slide rod; 903. Pressure frame; 904. Limiting spring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figures 1-7 As shown, one embodiment of this application proposes a multi-channel rapid pesticide residue detection device, comprising:

[0026] The testing platform 1 has a sloping top. The sloping surface of the testing platform 1 has several testing channels 2 for placing test strips. These channels 2 not only hold the test strips but also facilitate the flow of the test solution. Different test strips (for detecting different types of pesticides or different components of pesticides) are placed within the channels 2. The testing platform 1 is equipped with a holding member 9 to secure the test strips. Once the test strip is placed in a testing channel 2, the holding member 9 presses and secures it to prevent it from slipping. A liquid injection tube 3 is mounted on the testing platform 1 at the higher end of the sloping surface via a support rod. The bottom end of the liquid injection tube 3 is connected to several branch tubes 4. Several branch pipes 4 correspond one-to-one with several detection channels 2. A cleaning tank 5 is installed on the top of the detection platform 1 via a support rod. The cleaning tank 5 is used to hold clean water or water mixed with disinfectant. The bottom of the cleaning tank 5 is connected to a cleaning pipe 6 coaxial with the injection pipe 3. The cleaning pipe 6 is located above the injection pipe 3 and is equipped with a first valve 7. A collection shell 8 is installed on the detection platform 1 at the lower end of the slope. When conducting pesticide residue testing, the first valve 7 on the cleaning pipe 6 is closed, and several test strips for detecting different components are placed in several detection channels 2. Then, the holding member 9 is used to hold the test strips in place. The paper is held in place within the detection channel 2. The raw liquid to be tested is added to the injection tube 3. The raw liquid is then distributed through several branch tubes 4 into several detection channels 2. Since the detection channel 2 is located on an inclined surface, the raw liquid flows downwards along the detection channel 2. The raw liquid flows through the test paper and then into the collection shell 8. After the raw material flows through the test paper, the test paper displays the result of its corresponding component. By placing test papers for different components in several detection channels 2, the raw liquid can be simultaneously distributed into several detection channels 2, allowing for simultaneous detection of the raw liquid in multiple directions, effectively improving detection efficiency and reducing detection costs. During the test, after the test is completed, release the pressure of the holding member 9 on the test paper and remove the test paper. Then open the first valve 7, and the water in the cleaning tank 5 is added to the injection pipe 3 through the cleaning pipe 6. The clean water is diverted from the injection pipe 3 to several branch pipes 4, and then to several detection channels 2. This makes the flow of the cleaning water the same as that of the original liquid. The injection pipe 3, branch pipes 4 and detection channels 2 can be rinsed. The wastewater generated by rinsing flows back to the collection shell 8. This can quickly clean the parts of the detection device that come into contact with the original liquid, which is convenient for subsequent detection of other original liquids with different components, thereby improving practicality.

[0027] In this scheme, different test strips are pressed in different detection channels 2, and the stock solution can be diverted to several detection channels 2. Different components can be detected by different test strips. The stock solution can be detected in multiple directions at the same time, which effectively improves the detection efficiency. After the detection is completed, the first valve 7 is opened, and clean water can be used to rinse the injection pipe 3, the branch pipe 4 and the detection channel 2. The wastewater generated by rinsing flows back into the collection shell 8, which can quickly clean the parts of the detection device that come into contact with the stock solution, making cleaning convenient and thus improving practicality.

[0028] like Figure 4 and Figure 5 As shown, this application discloses a further technical solution for adding the stock solution to the injection tube 3. The top of the injection tube 3 is connected to a conical receiving shell 10. Since the stock solution is usually placed in a test tube, the conical receiving shell 10 connected to the top of the injection tube 3 is used to increase the pouring receiving interface, so as to better pour the stock solution in the test tube into the injection tube 3, avoid the stock solution from dripping outwards during pouring, and prevent the stock solution from spilling to the outside (outside the injection tube 3 or the branch tube 4), thereby improving cleanliness.

[0029] like Figure 4 and Figure 5 As shown, this application discloses a further technical solution for cleaning. A sleeve 11 is slidably fitted onto the bottom end of the cleaning pipe 6. A conical shell 12 is connected to the bottom end of the sleeve 11. A conical diverter shell 13 is connected to the inner wall of the conical shell 12 via a support rod. In the initial state, under the action of gravity, the conical shell 12 and the conical receiving shell 10 overlap. See reference [link / reference needed] for details. Figure 4 and Figure 5 When the stock solution needs to be added, slide the sleeve 11 upwards to add the stock solution in the test tube into the conical shell 10 for testing. After the test is completed, the conical sleeve 12 and the conical shell 10 are still in an overlapping state. The conical diverter shell 13 is connected to the conical sleeve 12 through a support rod. The top of the conical diverter shell 13 is in a blocked state, but there is a flow gap between the outer wall of the conical diverter shell 13 and the inner wall of the conical sleeve 12. The conical diverter shell 13 is used to guide the flow. When the clean water in the cleaning tube 6 flows downwards, the conical diverter shell 13 guides the flow of clean water, so that the clean water diffuses in a conical shape, which can effectively rinse and clean the inner wall of the conical shell 10, ensuring the cleaning effect.

[0030] like Figure 4 and Figure 7As shown, this application discloses a further technical solution for cleaning. A ring plate 14 is fixed on the cleaning pipe 6. An abutment spring 15 is installed between the ring plate 14 and the sleeve 11 and is sleeved on the cleaning pipe 6. A sealing ring 16 is provided between the conical shell 10 and the conical sleeve 12. By setting the abutment spring 15, the normal upward sliding of the sleeve 11 is not affected, nor is the normal addition of the original solution. When cleaning is performed, the conical sleeve 12 and the conical shell 10 effectively abut and overlap under the elastic force of the abutment spring 15. The sealing ring 16 between the two makes the sealing effect better after the conical shell 12 and the conical shell 10 overlap under the elastic force of the abutment spring 15. When the conical diversion shell 13 guides the flow of clean water, it can ensure effective rinsing and cleaning of the conical shell 10 and prevent clean water from seeping out from the overlapping end of the conical shell 12 and the conical shell 10, thereby improving practicality.

[0031] like Figure 6 As shown, the specific structure of the holding member 9 of this application is disclosed to achieve the holding and fixing of the test strip. The holding member 9 includes a portal frame 901 set on the detection table 1. A plurality of slide rods 902 slide through the portal frame 901, and the plurality of slide rods 902 correspond one-to-one with a plurality of detection channels 2. A pressure frame 903 is provided at one end of the slide rod 902. A limiting spring 904 sleeved on the slide rod 902 is installed between the pressure frame 903 and the portal frame 901. When placing the test strip, the slide rod 902 is first pulled upward, which drives the pressure frame 903 to move upward and squeeze the limiting spring 904. Then the test strip is laid flat on the table. Inside the detection channel 2, the slide bar 902 is then loosened. Under the elastic force of the limit spring 904, the pressure frame 903 presses and fixes the test strip to prevent the test strip from slipping when the original solution is transported, thus ensuring effective detection of the original solution. Preferably, the pressure frame 903 is constructed as follows: it has two vertical plates and one horizontal plate. The horizontal plate is connected to the slide bar 902. The two vertical plates press and fix the test strip, which can ensure effective pressing and fixing of the test strip without occupying too much of the test strip surface and not affecting the viewing of the test results. The pressing or releasing method is relatively simple and convenient, only requiring the slide bar 902 to slide.

[0032] like Figure 6As shown, a further technical solution for fixing the test strip is disclosed in this application. The inner bottom wall of the detection channel 2 is provided with an insert groove 17, and the test strip is embedded in the insert groove 17. Preferably, the insert groove 17 includes a first groove and a second groove that are connected. When the test strip is placed, it is placed in the first groove. The depth of the first groove is slightly greater than the thickness of the test strip, which is used to pre-position the test strip. After the test strip is placed in the first groove, with the pressure of the pressure frame 903, the surface of the test strip is slightly lower than the inner bottom surface of the detection channel 2, so that when the original liquid flows along the detection channel 2, it can effectively flow to the surface of the test strip, which is more conducive to detection. The structure of the first groove and the second groove of the insert groove 17 ensures that there is not too much residual liquid in it during cleaning. The waste liquid generated during cleaning can be effectively flowed and discharged into the collection shell 8, thereby improving the cleaning effect.

[0033] like Figure 5 As shown, this application discloses a further technical solution for test strip detection. Each of the several branch tubes 4 is equipped with a second valve 18. In actual testing, the amount of the components to be detected in the original solution varies. Different test strips can be placed according to the detection of different components. The detection channel 2 is not completely occupied. The second valve 18 on the branch tube 4 can be closed according to the amount of the components to be detected, so that the original solution will not flow into the empty detection channel 2 during the testing process. At the same time, during the cleaning process, clean water will not flow into the empty detection channel 2, thereby improving practicality.

[0034] like Figure 2 As shown, this application discloses a further technical solution for the removal and removal of the collection shell 8. A slot 19 is provided on one side of the testing platform 1, and the collection shell 8 is movably inserted into the slot 19. Preferably, the top opening of the collection shell 8 is lower than the lowest end of the testing channel 2. By opening the slot 19 on the testing platform 1 and inserting the collection shell 8 into the slot 19, the collection shell 8 can not only effectively receive the original liquid or the waste liquid generated during cleaning, but also the collection shell 8 can be detached from the testing platform 1, which is convenient for dumping and treating the waste liquid, thereby improving its practicality.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-channel pesticide residue rapid detection device, characterized in that, include: The detection platform (1) has a sloping top. The sloping array of the detection platform (1) has several detection channels (2) for placing test strips. The detection platform (1) is provided with a pressure member (9) for fixing the test strips. The detection platform (1) is provided with an injection tube (3) through a support rod at the higher end of the sloping surface. The bottom end of the injection tube (3) is connected to several branch tubes (4), and the several branch tubes (4) correspond one-to-one with several detection channels (2). The top of the detection platform (1) is provided with a cleaning box (5) through a support rod. The bottom of the cleaning box (5) is connected to a cleaning tube (6) coaxial with the injection tube (3). The cleaning tube (6) is provided with a first valve (7). The detection platform (1) is provided with a collection shell (8) at the lower end of the sloping surface.

2. The multi-channel pesticide residue rapid detection device according to claim 1, characterized in that, The top of the injection tube (3) is connected to a conical housing (10).

3. The multi-channel pesticide residue rapid detection device according to claim 2, characterized in that, The bottom end of the cleaning pipe (6) is slidably fitted with a sleeve (11), the bottom end of the sleeve (11) is connected to a conical shell (12), and the inner wall of the conical shell (12) is connected to a conical diversion shell (13) by a support rod.

4. The multi-channel pesticide residue rapid detection device according to claim 3, characterized in that, A ring plate (14) is fixed on the cleaning pipe (6), and an abutment spring (15) sleeved on the cleaning pipe (6) is installed between the ring plate (14) and the sleeve (11). A sealing ring (16) is provided between the conical shell (10) and the conical sleeve (12).

5. The multi-channel pesticide residue rapid detection device according to claim 1, characterized in that, The pressing member (9) includes a portal frame (901) set on the testing table (1). Several slide rods (902) slide through the portal frame (901) and the slide rods (902) correspond one-to-one with several testing channels (2). A pressing frame (903) is set at one end of the slide rod (902). A limiting spring (904) sleeved on the slide rod (902) is installed between the pressing frame (903) and the portal frame (901).

6. The multi-channel pesticide residue rapid detection device according to claim 1, characterized in that, The inner bottom wall of the detection channel (2) is provided with a slot (17), and the test paper is embedded in the slot (17).

7. The multi-channel rapid pesticide residue detection device according to claim 1, characterized in that, Each of the aforementioned branch pipes (4) is equipped with a second valve (18).

8. The multi-channel pesticide residue rapid detection device according to claim 1, characterized in that, A slot (19) is provided on one side of the testing station (1), and the collection shell (8) is movably inserted into the slot (19).

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