A leafy vegetable pesticide residue determination tool
By designing a replaceable inner hopper and a servo motor-controlled pressure head replacement, the problem of frequent cleaning in leafy vegetable pesticide residue testing tools has been solved, improving detection efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HUASHUBIAO TESTING & CERTIFICATION TECH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-31
AI Technical Summary
In existing technologies, pesticide residue testing tools for leafy vegetables require frequent cleaning of the crushing dish during multiple tests, resulting in low testing efficiency.
A pesticide residue testing tool was designed, comprising a positioning base, an inner hopper, and a crushing structure. The inner hopper can be directly replaced after each test. Combined with the servo motor-controlled quick replacement of the pressure head and the crushing structure design, the operation process is simplified and the testing efficiency is improved.
This allows for subsequent testing without the need to clean the grinding dish, improving measurement efficiency and accuracy while simplifying the operation process.
Smart Images
Figure CN224581402U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pesticide detection technology, specifically a tool for determining pesticide residues in leafy vegetables. Background Technology
[0002] Leafy vegetables refer to vegetables such as spinach, lettuce, bok choy, romaine lettuce, and celery. These vegetables are characterized by short growth cycles, shallow root systems, large leaf surface areas, and high water content. They are a fundamental component of the human diet, serving multiple functions including nutritional supply, ecological regulation, economic development, and social health. During the cultivation of leafy vegetables, pesticides are usually sprayed for prevention or control to reduce the threat of pests and diseases. Due to their short growth cycle, pesticide residues are easily found in the crops at harvest. To improve food safety, food safety agencies usually use testing tools to detect pesticide residues in vegetables.
[0003] When conducting the test, the staff first add the extract to the vegetable leaves and then crush them in a crushing dish. After the crushing is completed, the juice is dripped onto the test tablet and left to stand for ten minutes. Finally, the reaction tablet and the test tablet are pressed together to react, causing the test tablet to change color. The intensity of the color indicates the degree of pesticide residue.
[0004] Currently, when measuring pesticide residues in leafy vegetables, the grinding dish is cleaned to ensure the accuracy of the results. However, cleaning the grinding dish takes a lot of time when conducting multiple tests, which reduces the efficiency of pesticide residue measurement. Utility Model Content
[0005] The purpose of this invention is to provide a tool for determining pesticide residues in leafy vegetables, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a tool for determining pesticide residues in leafy vegetables, comprising: a detection seat; a support fixedly mounted on the detection seat; a pressure rod slidably mounted on the support, the pressure rod moving axially; a positioning seat fixedly mounted on the top of the detection seat, the positioning seat communicating with the interior of the detection seat; an inner hopper inserted into the positioning seat, the inner hopper consisting of a round tube and a bottom cover fixedly mounted at its bottom end; a plurality of filter holes penetrating through the bottom cover of the inner hopper, the plurality of filter holes being evenly distributed on the bottom cover; and a crushing structure located at the bottom end of the pressure rod, which, through cooperation with the inner hopper, obtains leafy vegetable juice.
[0007] Preferably, the crushing structure includes: a rotating disk rotatably disposed at the bottom end of the pressure rod; a plurality of threaded columns fixedly disposed on the outer surface of the rotating disk, the threaded columns being evenly distributed on the surface of the rotating disk; a plurality of pressure heads fixedly disposed on the threaded columns, one of the pressure heads being slidably disposed inside the inner sleeve hopper; and a servo motor fixedly disposed on the pressure rod, the output end of the servo motor being drively connected to the shaft end of the rotating disk, the servo motor driving the rotating disk to rotate, thereby changing the position of the pressure head.
[0008] Preferably, it further includes: a plurality of positioning grooves formed on the inner surface of the positioning seat; a plurality of positioning blocks fixedly disposed on the outer surface of the inner sleeve, the outer surface of the positioning blocks being slidably disposed with the inner surface of the positioning grooves; a plurality of guide grooves formed on the hollow funnel of the inner sleeve, the leafy vegetable juice flowing and converging along the guide grooves when squeezed out; and a baffle ring fixedly disposed on the top of the inner sleeve, the inner sleeve being limited and supported when the baffle ring is configured to cooperate with the positioning seat.
[0009] Preferably, it further includes: a detection tablet disposed on the inner bottom surface of the detection seat, the detection tablet being located directly below the inner sleeve; a rotating plate rotatably disposed on the detection seat, the rotating plate rotating at an angle of 180°; a reaction tablet fixedly disposed on the rotating plate, the reaction tablet being pressed against the detection tablet when the rotating plate is horizontally disposed inside the detection seat; and a cylinder fixedly disposed on the top of the support, the cylinder's telescopic end penetrating through the top of the support, one end of the pressure rod being fixedly disposed with the cylinder's telescopic end, the pressure rod moving axially along the cylinder when the cylinder is in operation.
[0010] Preferably, it further includes: a limiting sleeve, fixedly mounted on the detection seat, the limiting sleeve being located on the same side of the rotating plate; a limiting groove, formed in the inner sidewall of the detection seat; and a limiting rod, slidably mounted on the rotating plate, one end of the limiting rod being able to be inserted into the limiting sleeve and the inside of the limiting sleeve.
[0011] Preferably, it further includes: a first slot, fixedly disposed on the bottom surface inside the detection seat, wherein the detection tablet is inserted into the first slot; and a second slot, fixedly disposed on one side of the rotating plate, wherein the reaction tablet is inserted into the second slot.
[0012] Preferably, it further includes: a limiting sleeve, fixedly mounted on the bracket, wherein the outer surface of the pressure rod is slidably disposed with respect to the inner surface of the limiting sleeve; and the pressure head and the inner sleeve are in clearance fit.
[0013] This utility model provides a tool for determining pesticide residues in leafy vegetables, which has the following beneficial effects:
[0014] (1) By setting up a positioning seat, an inner sleeve and a crushing structure, this utility model can directly pull out the inner sleeve from the positioning sleeve for replacement after one test, thereby avoiding the cleaning operation in the experimental process. It is simple to operate, convenient to measure, and improves the measurement efficiency.
[0015] (2) This utility model controls the rotation of the rotating disk by a servo motor, so that the used pressure head is replaced by a new pressure head. After that, the used pressure head is rotated so that it can be removed from the threaded column and cleaned. This not only avoids the impact of repeated use of the pressure head on the experimental accuracy, but also facilitates the quick replacement of the pressure head and improves the detection efficiency. Attached Figure Description
[0016] Figure 1 This is a first schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a second schematic diagram of the overall structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the overall structure of the reaction tablet and the detection tablet of this utility model when they are attached together;
[0019] Figure 4 This is an exploded view of the internal structure of the testing seat in this practical application;
[0020] Figure 5 This is a schematic diagram showing the crushing structure of this utility model.
[0021] Figure 6 This is a schematic diagram of the inner hopper structure of this practical application.
[0022] In the diagram: 1. Detector seat; 2. Bracket; 3. Cylinder; 4. Pressure rod; 5. Crushing structure; 51. Rotating disk; 52. Threaded column; 53. Pressure head; 54. Servo motor; 6. Positioning seat; 7. Inner sleeve; 8. Guide groove; 9. Positioning block; 10. Positioning groove; 11. Detection tablet; 12. Rotating plate; 13. Reaction tablet; 14. Limiting sleeve; 15. Limiting groove; 16. Limiting rod; 17. No. 1 slot; 18. No. 2 slot; 19. Restricting sleeve; 20. Filter hole; 21. Retaining ring. Detailed Implementation
[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0024] This utility model provides a technical solution: Referring to 1-6, in this embodiment, a tool for determining pesticide residues in leafy vegetables includes: a detection seat 1; a support 2, fixedly mounted on the detection seat 1; a pressure rod 4, slidably mounted on the support 2, and the pressure rod 4 moves axially; a positioning seat 6, fixedly mounted on the top of the detection seat 1, and the positioning seat 6 is connected to the interior of the detection seat 1; an inner hopper 7, inserted into the positioning seat 6, the inner hopper 7 consisting of a round tube and a bottom cover fixedly mounted at its bottom end; a plurality of filter holes 20, which are evenly distributed on the bottom cover of the inner hopper 7; and a crushing structure 5, located at the bottom end of the pressure rod 4, which, through the inner hopper... The inner hopper 7 is used to obtain vegetable juice. The positioning seat 6 supports and positions the inner hopper 7, ensuring its stability during the crushing process. The inner hopper 7 is easy to replace; after one use, it can be quickly removed and a new inner hopper 7 can be installed, improving the overall detection efficiency and ensuring the accuracy of the measurement. The bottom cover is shaped like an inverted frustum, which facilitates the collection of juice at the center, ensuring that the juice falls accurately onto the detection tablet 11. The filter hole 20 isolates the crop during the crushing process, ensuring that only the vegetable juice that has been mixed with the extract flows out.
[0025] The crushing structure 5 includes: a rotating disk 51, rotatably mounted on the bottom end of the pressure rod 4; several threaded posts 52, fixedly mounted on the outer surface of the rotating disk 51, with the threaded posts 52 evenly distributed on the surface of the rotating disk 51; several pressure heads 53, fixedly mounted on the threaded posts 52, one of which is slidably mounted inside the inner hopper 7; and a servo motor 54, fixedly mounted on the pressure rod 4, with its output end connected to the shaft end of the rotating disk 51. The servo motor 54 drives the rotating disk 51 to rotate, thereby changing the position of the pressure head 53. By setting the rotating disk 51, the position of the threaded posts 52 can be adjusted by rotation, enabling rapid replacement of the pressure head 53 and improving the replacement efficiency of the pressure head 53. By setting the servo motor 54, the rotation calibration of the rotating disk 51 can be precisely positioned to ensure that the replacement pressure head 53 can accurately enter the inner hopper 7.
[0026] It also includes: several positioning grooves 10, formed on the inner surface of the positioning seat 6; several positioning blocks 9, fixedly set on the outer surface of the inner sleeve 7, with the outer surface of the positioning blocks 9 slidingly set with the inner surface of the positioning grooves 10; several guide channels 8, formed on the hollow funnel of the inner sleeve 7, where the vegetable juice flows and converges along the guide channels 8 when squeezed out; and a retaining ring 21, fixedly set on the top of the inner sleeve 7. When the retaining ring 21 is set to cooperate with the positioning seat 6, the inner sleeve 7 is limited and supported. By setting the positioning grooves 10 and the positioning blocks 9, the stability of the inner sleeve 7 in the positioning seat 6 can be ensured. By setting the retaining ring 21, the inner sleeve 7 can be positioned to prevent it from being pressed out of the positioning seat 6 by the pressure head 53 during use.
[0027] It also includes: a detection tablet 11, which is set on the bottom surface inside the detection seat 1 and is located directly below the inner sleeve 7; a rotating plate 12, which is rotatably set on the detection seat 1 and has a rotation angle of 180°; a reaction tablet 13, which is fixedly set on the rotating plate 12. When the rotating plate 12 is horizontally set inside the detection seat 1, the reaction tablet 13 and the detection tablet 11 are pressed together; and a cylinder 3, which is fixedly set on the top of the bracket 2. The telescopic end of the cylinder 3 passes through the top of the bracket 2, and one end of the pressure rod 4 is fixedly set to the telescopic end of the cylinder 3. When the cylinder 3 is set to run, the pressure rod 4 moves along the axial direction of the cylinder 3. By setting the detection tablet 11, the color can be displayed by cooperating with the reaction tablet 13. The depth of the color indicates the degree of pesticide residue.
[0028] It also includes: a limiting sleeve 14, which is fixedly installed on the detection seat 1 and is located on the same side of the rotating plate 12; a limiting groove 15, which is opened on the inner side wall of the detection seat 1; and a limiting rod 16, which is slidably installed on the rotating plate 12. One end of the limiting rod 16 can be inserted into the limiting sleeve 14 and the inside of the limiting sleeve 14 to fix the rotating plate 12.
[0029] It also includes: a first slot 17, which is fixedly installed on the bottom surface inside the detection seat 1, and the detection tablet 11 is inserted into the first slot 17; a second slot 18, which is fixedly installed on one side of the rotating plate 12, and the reaction tablet 13 is inserted into the second slot 18, which can facilitate the replacement and installation of the detection tablet 11 and the reaction tablet 13, thereby improving the detection efficiency.
[0030] It also includes: a limiting sleeve 19, which is fixedly installed on the bracket 2, and the outer surface of the pressure rod 4 is slidably installed with the inner surface of the limiting sleeve 19; the pressure head 53 and the inner sleeve 7 are in clearance fit. By setting the limiting sleeve 19, the pressure rod 4 can be positioned to prevent it from tilting. By setting the pressure head 53 and the inner sleeve 7 in clearance fit, the pressure head 53 can be easily moved in and out of the inner sleeve 7.
[0031] This utility model provides a tool for determining pesticide residues in leafy vegetables, and its working principle is as follows:
[0032] When testing pesticide residues in leafy vegetables, staff cut the sample into small pieces and place them inside the inner sleeve 7. Then, cylinder 3 is activated, causing pressure rod 4 to drive pressure head 53 to squeeze out the crop juice. The squeezed juice collects under the action of guide groove 8 and falls onto the test tablet 11 under gravity. After waiting ten minutes, staff remove the limiting rod 16 from the limiting sleeve 14 to release the restriction of rotating plate 12, rotate it into the test seat 1, and insert the limiting rod 16 into the limiting groove 15 for fixation, allowing the reverse... The reaction tablet 13 and the detection tablet 11 are pressed together. Then, under the action of the reaction tablet 13, the color of the detection tablet 11 changes, thus determining the degree of pesticide residue in the crop. After the experiment on one side is completed, the cylinder 3 is reset, and the operator starts the servo motor 54. (At this time, only the used pressure head 53 and the pressure head 53 to be replaced are installed on the rotating disk 51). The servo motor 54 controls the rotating disk 51 to rotate, realizing the replacement of the old and new pressure heads 53. At the same time, the used inner sleeve 7 is pulled out and replaced for the next test.
[0033] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A tool for determining pesticide residues in leafy vegetables, characterized in that: include: Detection seat (1); The bracket (2) is fixedly mounted on the testing seat (1); The pressure rod (4) is slidably mounted on the bracket (2), and the pressure rod (4) moves axially. A positioning seat (6) is fixedly installed on the top of the detection seat (1), and the positioning seat (6) is connected to the inside of the detection seat (1); The inner sleeve (7) is inserted inside the positioning seat (6). The inner sleeve (7) consists of a round tube and a bottom cover fixedly installed at its bottom end. A plurality of filter holes (20) are provided through the bottom cover of the inner sleeve (7), and the plurality of filter holes (20) are evenly distributed on the bottom cover; The crushing structure (5) is located at the bottom of the pressure rod (4) and obtains leafy vegetable juice by cooperating with the inner sleeve (7).
2. The leafy vegetable pesticide residue determination tool according to claim 1, characterized in that: The crushing structure (5) includes: Rotating disk (51) is rotatably mounted at the bottom end of pressure rod (4); A plurality of threaded posts (52) are fixedly disposed on the outer surface of the rotating disk (51), and the threaded posts (52) are evenly distributed on the surface of the rotating disk (51); Several pressure heads (53) are fixedly mounted on the threaded column (52), and one of the pressure heads (53) is slidably mounted inside the inner sleeve (7); A servo motor (54) is fixedly mounted on the pressure rod (4). The output end of the servo motor (54) is connected to the shaft end of the rotating disk (51) for transmission. The servo motor (54) drives the rotating disk (51) to rotate so that the position of the pressure head (53) is changed.
3. The tool for determining pesticide residues in leafy vegetables according to claim 1, characterized in that: Also includes: Several positioning grooves (10) are formed on the inner surface of the positioning seat (6); Several positioning blocks (9) are fixedly disposed on the outer surface of the inner sleeve (7), and the outer surface of the positioning blocks (9) is slidably disposed with the inner surface of the positioning groove (10); Several guide channels (8) are opened on the hollow funnel of the inner sleeve (7). When the leafy vegetable juice is squeezed out, it flows and converges along the guide channels (8). A retaining ring (21) is fixedly installed at the top of the inner sleeve (7). When the retaining ring (21) is configured to cooperate with the positioning seat (6), the inner sleeve (7) is limited and supported.
4. The leafy vegetable pesticide residue determination tool according to claim 3, characterized in that: Also includes: The detection tablet (11) is placed on the bottom surface inside the detection seat (1), and the detection tablet (11) is located directly below the inner sleeve (7); A rotating plate (12) is rotatably mounted on the detection seat (1), and the rotating plate (12) rotates at an angle of 180°. The reaction tablet (13) is fixedly mounted on the rotating plate (12). When the rotating plate (12) is horizontally mounted inside the detection seat (1), the reaction tablet (13) and the detection tablet (11) are pressed together. The cylinder (3) is fixedly installed at the top of the bracket (2). The telescopic end of the cylinder (3) passes through the top of the bracket (2). One end of the pressure rod (4) is fixedly installed with the telescopic end of the cylinder (3). When the cylinder (3) is set to run, the pressure rod (4) moves along the axial direction of the cylinder (3).
5. The leafy vegetable pesticide residue determination tool according to claim 4, characterized in that: Also includes: A limiting sleeve (14) is fixedly installed on the detection seat (1), and the limiting sleeve (14) is located on the same side of the rotating plate (12); A limiting groove (15) is provided on the inner side wall of the detection seat (1); The limiting rod (16) is slidably disposed on the rotating plate (12), and one end of the limiting rod (16) can be inserted into the limiting sleeve (14) and the inside of the limiting sleeve (14).
6. The leafy vegetable pesticide residue measuring tool according to claim 4, wherein: Also includes: The first slot (17) is fixedly installed on the bottom surface inside the detection seat (1), and the detection tablet (11) is inserted into the first slot (17); The second slot (18) is fixedly installed on one side of the rotating plate (12), and the reaction tablet (13) is inserted into the second slot (18).
7. The leafy vegetable pesticide residue measuring tool according to claim 2, characterized in that: Also includes: A limiting sleeve (19) is fixedly mounted on a bracket (2), and the outer surface of the pressure rod (4) is slidably mounted on the inner surface of the limiting sleeve (19); The pressure head (53) and the inner sleeve (7) are fitted with a clearance.