A pesticide residue detection card

Abstract

The utility model relates to a kind of pesticide residue detection card applied to detection device field, the integrated detection of the present scheme realizes sample processing, time control and result determination, convenient and efficient operation, after the uniform penetration of the sample to be detected by the liquid drop ring block flow guide, diffuse to reaction area by capillary effect, without complex operation can complete sample processing, in terms of timing, with the stable combination of auxiliary timing component and detection box body component, start timing by up and down rotation orientation, sealing control structure ensures that liquid flows according to demand, two independent channels are respectively adapted to different reaction length, without additional timing tool, timing is accurate and controllable, during detection process, detection card can be tightly attached after folding, without manual holding, a person can operate multiple detection cards, result determination is intuitive, by the standard color comparison on the color and vertical color comparison bar of reaction area, pesticide residue condition can be quickly judged, and detection efficiency and accuracy can be improved.

Description

Technical Field

[0001] This utility model relates to a detection card, and more particularly to a pesticide residue detection card used in the field of detection devices. Background Technology

[0002] A pesticide residue test card is a portable tool used to quickly detect pesticide residues in agricultural products (such as vegetables and fruits). Its basic detection logic is to use a colorimetric reagent in the reaction area of ​​the test card that is sensitive to pesticide residues to react chemically with the sample to be tested.

[0003] Chinese patent CN210108958U discloses a pesticide residue detection card, including a cabinet, a sample application area, an observation area, a sample plate, and a detection plate. The sample application area and the observation area are arranged side-by-side from left to right on the top surface of the cabinet. This invention employs a drawer-type contact detection method, and the detection plate is always covered with an insulating film, greatly protecting the detection card from external influences and preventing damage to its detection properties. A roughened section is provided at the front end of the sample plate, which only scratches the absorbent part when the detection plate is inserted, without affecting the detection part, thus greatly improving the detection effect and reducing errors.

[0004] Chinese patent CN203414413U discloses a pesticide residue detection percolation card, comprising a top cover, a bottom plate, a colorimetric reagent sheet, and a sponge pad. The lower surface of the top cover and the upper surface of the bottom plate are interlocked to form a closed shell. A through hole is provided on the top cover. The sponge pad and the colorimetric reagent sheet are placed inside the closed shell and secured between the top cover and the bottom plate. The colorimetric reagent sheet is placed above the sponge pad, and its position corresponds to the position of the through hole. This utility model of a pesticide residue detection percolation card features a simple detection procedure, low error, and can be performed at room temperature, allowing for quantitative reading of results.

[0005] Currently, most testing cards require external clocks or mobile phones to keep track of the timing during sample processing. This is not only cumbersome but also prone to timing errors due to human negligence. In particular, when multiple tests are performed simultaneously, it is difficult to accurately control the duration of different reaction stages. Utility Model Content

[0006] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is that the timing of the sample processing of most existing test cards often requires the use of an external clock or mobile phone for timing, which is not only cumbersome to operate, but also prone to timing errors due to human negligence. Especially when multiple sets of tests are carried out simultaneously, it is difficult to accurately control the duration of different reaction stages.

[0007] To address the aforementioned problems, this utility model provides a pesticide residue detection card, comprising a detection box assembly, an auxiliary timing component placed at the inner end of the detection box assembly, an auxiliary clamping component at the inner end of the detection box assembly, and a result comparison component outside the auxiliary timing component. The detection box assembly includes an outer box, with a folding plate fixedly connected to the opening of the outer box, and a detection card body placed at the inner end of the outer box. A dripping ring block and an adhesion ring block are respectively provided on the left and right sides of the upper end of the detection card body. The auxiliary timing component includes a vertical strip, with a transparent hourglass block fixedly connected to the front end of the vertical strip. A three-minute expanding channel is opened at the right end of the middle of the transparent hourglass block, and a ten-minute narrow channel is opened at the left end of the middle of the transparent hourglass block. A raised inner ring is fixedly connected to the openings of the ten-minute narrow channel and the three-minute expanding channel at their respective ends. Two springs are fixedly connected to the ends of the two raised inner rings at their respective ends, and sealing plugs are fixedly connected to the ends of the springs at their respective ends. The two sealing plugs are respectively matched with the inner diameters of the corresponding strip-shaped insertion holes and the conical insertion plates.

[0008] In the aforementioned pesticide residue detection card, this solution achieves integrated detection of sample processing, time control, and result determination, making it convenient and efficient to operate.

[0009] As a further improvement of this application, a strip-shaped insertion hole is provided at the upper center of the outer box, and a removable cover is provided at the inner end of the strip-shaped insertion hole.

[0010] As a further improvement of this application, a tapered insert plate is fixedly connected to the lower end of the vertical strip, and the tapered insert plate engages with the corresponding strip-shaped insertion hole.

[0011] As a further improvement of this application, the inner end of the transparent hourglass block is filled with a certain amount of red liquid, and the auxiliary clamping component includes an inner protruding clamping strip fixedly connected to the inner wall of the outer box.

[0012] As another improvement of this application, the lower end of the inner protruding clamping strip is fixedly connected with a textured surface, and the left and right ends of the detection card body are symmetrically fixedly connected with outwardly expanding protruding pieces.

[0013] As a further improvement to this application, the extended protruding piece engages between the folded plate and the textured surface, resulting in a contrasting component including a vertical color contrast bar.

[0014] As another improvement of this application, the vertical color contrast strip is fixedly connected to the right side of the front end of the vertical strip, and the upper and lower sides of the front end of the vertical color contrast strip are respectively fixedly connected with the color layer.

[0015] In summary, this solution achieves integrated detection of sample processing, time control, and result determination. It is convenient and efficient to operate. The sample to be tested is uniformly permeated after being guided by the droplet ring and diffuses to the reaction area through capillary action. Sample processing can be completed without complex operations. For timing, the stable combination of the auxiliary timing component and the detection box component allows timing to be started by rotating the device up and down. The sealed control structure ensures that the liquid flows as needed. Two independent channels are adapted to different reaction times, eliminating the need for additional timing tools. Timing is accurate and controllable. During detection, the test card folds tightly and fits without manual handling, allowing a single person to operate multiple test cards. Result determination is intuitive; by comparing the color of the reaction area with the standard color on the vertical color contrast bar, pesticide residue levels can be quickly determined, and the results are reliable. The overall design is compact, and the components work together to improve detection efficiency and accuracy. Attached Figure Description

[0016] Figure 1 This is an isometric view of the detection housing assembly according to the first embodiment of this application; Figure 2 This is a structural diagram of the detection card body according to the first and second embodiments of this application; Figure 3 This is a structural diagram of the auxiliary timing component according to the first embodiment of this application; Figure 4 This is a structural diagram of the vertical strip plate according to the first embodiment of this application; Figure 5 This is a front cross-sectional view of the transparent hourglass block according to the first embodiment of this application; Figure 6 This is the first embodiment of the present application. Figure 5 Enlarged structural diagram of a partially truncated transparent hourglass block; Figure 7 This is a structural diagram of a transparent hourglass block according to the second embodiment of this application.

[0017] Explanation of the labels in the diagram: 1. Test Box Components; 100. Outer Box; 102. Folding Plate; 104. Test Card Body; 1040. Adhesive Ring Block; 1041. Dropping Ring Block; 2. Auxiliary Timing Components; 200. Vertical Strip Plate; 201. Transparent Hourglass Block; 202. Conical Insert Plate; 203. Strip Insertion Hole; 204. Removable Cover Sheet; 205. Spring; 206. Sealing Plug; 207. Ten-Minute Narrow Channel; 208. Three-Minute Expanding Channel; 209. Protruding Inner Ring; 3. Auxiliary Clamping Components; 300. Inner Protruding Clamping Strip; 301. Embossed Texture; 302. Outer Expanding Protruding Sheet; 4. Result Comparison Components; 400. Vertical Color Comparison Strip; 401. Color Coating Layer. Detailed Implementation

[0018] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0019] First implementation method: Figures 1-6 A pesticide residue detection card is shown, including a detection box assembly 1, an auxiliary timing component 2 placed inside the detection box assembly 1, an auxiliary clamping component 3 provided inside the detection box assembly 1, and a result comparison component 4 provided outside the auxiliary timing component 2. The detection box assembly 1 includes an outer box 100, a folding plate 102 fixedly connected to the opening of the outer box 100, and a detection card body 104 placed inside the outer box 100. A dripping ring block 1041 and an adhesion ring block 1040 are respectively provided on the left and right sides of the upper end of the detection card body 104. The auxiliary timing component 2 includes a vertical strip 200, and the front of the vertical strip 200... A transparent hourglass block 201 is fixedly connected to the end. A three-minute expanding channel 208 is opened at the right end of the middle of the transparent hourglass block 201, and a ten-minute narrow channel 207 is opened at the left end of the middle of the transparent hourglass block 201. A raised inner ring 209 is fixedly connected to the openings of the ten-minute narrow channel 207 and the three-minute expanding channel 208 at their respective far ends. Two springs 205 are fixedly connected to the ends of the two raised inner rings 209 at their respective far ends. A sealing plug 206 is fixedly connected to the end of the spring 205 away from the raised inner ring 209. The two sealing plugs 206 are respectively matched with the inner diameters of the corresponding strip-shaped insertion hole 203 and the conical insertion plate 202.

[0020] The upper middle part of the outer box 100 has a strip-shaped insertion hole 203. The inner end of the strip-shaped insertion hole 203 is provided with a detachable cover piece 204. The lower end of the vertical strip 200 is fixedly connected to a conical insertion plate 202. The conical insertion plate 202 is engaged into the corresponding strip-shaped insertion hole 203. The inner end of the transparent hourglass block 201 is filled with a certain amount of red liquid.

[0021] The result comparison component 4 includes a vertical color contrast bar 400, which is fixedly connected to the right front end of the vertical strip 200. The upper and lower front ends of the vertical color contrast bar 400 are respectively fixedly connected to the color layer 401.

[0022] Figures 1-6 This scheme demonstrates an integrated detection process that achieves sample processing, time control, and result determination through the collaborative action of multiple components. The sample to be tested is dropped onto the dropper ring 1041 of the test card body 104. The sample is uniformly permeated into the detection area through the guiding structure of the dropper ring 1041 and held still for ten minutes. Then, the test card body 104 is folded in half and the bonding ring 1040 is tightly bonded and held for three minutes. The sample dropped onto the dropper ring 1041 is uniformly diffused into the reaction area of ​​the test card body 104 through capillary action. This area contains a colorimetric reagent that is sensitive to pesticide residues.

[0023] Align and engage the tapered insert 202 at the lower end of the vertical strip 200 with the strip-shaped insert 203 at the upper end of the outer box 100, so that the auxiliary timing component 2 and the detection box component 1 form a whole. At the ten-minute and three-minute timing nodes, rotate their positions up and down. The red liquid flows in from the upper opening of the three-minute expanding channel 208. Because the channel diameter is large, the liquid flows to the lower end within 3 minutes, completing the three-minute reaction timing. The red liquid flows in from the upper opening of the ten-minute narrow channel 207. Because the channel diameter is small, the liquid flow rate is slowed down, and it takes 10 minutes to flow to the lower end, meeting the ten-minute reaction requirement. The two channels inside the transparent hourglass block 201 are independent of each other to prevent liquid turbulence from interfering with the results. The plate 202 cooperates with the strip-shaped socket 203. In the auxiliary timing component 2 of the pesticide residue detection card, the raised inner ring 209, the spring 205, and the sealing plug 206 form a one-way sealing control structure. When the transparent hourglass block 201 is rotated up and down at the ten-minute and three-minute timing nodes, the corresponding sealing plug 206 will compress the spring 205 and move towards the raised inner ring 209. The corresponding channel opening is opened, and the red liquid can flow along the narrow channel 207 of the ten-minute timer or the expanded channel 208 of the three-minute timer. The timing process officially begins, realizing the rapid and accurate positioning of the auxiliary timing component 2. The same timing component can achieve accurate timing of two independent reaction stages, avoiding the need for additional timing tools.

[0024] After the test is completed, the reaction area of ​​the test card body 104 will change color. At this time, the result can be judged by the result comparison component 4. The vertical color comparison bar 400 is fixed on the right side of the front end of the vertical bar 200. The color layer 401 on it is the standard color corresponding to different pesticide residue concentrations. By comparing the color of the reaction area of ​​the test card body 104 with the color layer 401 on the vertical color comparison bar 400, the pesticide residue status in the sample can be determined.

[0025] Second implementation method: Figure 2 , Figure 7This invention illustrates a pesticide residue detection card. An auxiliary clamping assembly 3 includes an inner protruding clamping strip 300 fixedly connected to the inner wall of an outer casing 100. The lower end of the inner protruding clamping strip 300 is fixedly connected to a textured surface 301. The left and right ends of the detection card body 104 are symmetrically fixedly connected to outwardly expanding protruding pieces 302. The outwardly expanding protruding pieces 302 engage with the folding plate 102 and the textured surface 301. The textured surface 301 at the lower end of the inner protruding clamping strip 300 has a wavy design, which interacts with the outwardly expanding protruding pieces 302. The serrated edges form a mechanical interlock, ensuring that the test card body 104 remains stable during folding. The fitting ring 1040 can fit tightly without manual pressing. At the same time, the auxiliary clamping component 3 can be used as an optional accessory. In scenarios where a single person operates multiple test cards, it can completely free the operator's hands, eliminating the need to focus on fixing individual test cards, greatly improving operational efficiency, avoiding problems such as poor fit and uneven reaction caused by unstable manual grip, and ensuring the accuracy of test results.

[0026] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A pesticide residue detection card, characterized in that: The system includes a detection box assembly (1), an auxiliary timing assembly (2) placed inside the detection box assembly (1), an auxiliary clamping assembly (3) provided inside the detection box assembly (1), and a result comparison assembly (4) provided outside the auxiliary timing assembly (2). The detection box assembly (1) includes an outer box (100), a folding plate (102) fixedly connected to the opening of the outer box (100), a detection card body (104) placed inside the outer box (100), and a dripping ring block (1041) and a bonding ring block (1040) respectively provided on the left and right sides of the upper end of the detection card body (104). The auxiliary timing assembly (2) includes a vertical strip (200), and the front of the vertical strip (200) is... A transparent hourglass block (201) is fixedly connected to the end of the transparent hourglass block (201). A three-minute expanding channel (208) is opened at the right end of the middle part of the transparent hourglass block (201), and a ten-minute narrow channel (207) is opened at the left end of the middle part of the transparent hourglass block (201). A raised inner ring (209) is fixedly connected to the opening of the ten-minute narrow channel (207) and the three-minute expanding channel (208) at their respective far apart ends. Two springs (205) are fixedly connected to the ends of the two raised inner rings (209) at their respective far apart ends. A sealing plug (206) is fixedly connected to the end of the spring (205) away from the raised inner ring (209). The two sealing plugs (206) are respectively matched with the inner diameter of the corresponding strip-shaped insertion hole (203) and the conical insertion plate (202).

2. The pesticide residue detection card according to claim 1, characterized in that: The upper middle part of the outer box (100) is provided with a strip-shaped insertion hole (203), and the inner end of the strip-shaped insertion hole (203) is provided with a removable cover plate (204).

3. A pesticide residue detection card according to claim 2, characterized in that: The lower end of the vertical strip (200) is fixedly connected to a tapered insert (202), which engages with the corresponding strip-shaped insertion hole (203).

4. The pesticide residue detection card according to claim 1, characterized in that: The inner end of the transparent hourglass block (201) is filled with a certain amount of red liquid, and the auxiliary clamping assembly (3) includes an inner protruding clamping strip (300) fixedly connected to the inner wall of the outer box (100).

5. A pesticide residue detection card according to claim 4, characterized in that: The lower end of the inner protruding clamping strip (300) is fixedly connected with a textured surface (301), and the left and right ends of the detection card body (104) are symmetrically fixedly connected with outwardly expanding protruding pieces (302).

6. A pesticide residue detection card according to claim 5, characterized in that: The outwardly protruding piece (302) engages between the folded plate (102) and the textured surface (301), and the result comparison component (4) includes a vertical color contrast bar (400).

7. A pesticide residue detection card according to claim 6, characterized in that: The vertical color contrast strip (400) is fixedly connected to the right front end of the vertical strip (200), and the upper and lower sides of the front end of the vertical color contrast strip (400) are respectively fixedly connected with the color layer (401).

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