Food pesticide residue detection machine based on food safety

Abstract

The utility model discloses a food pesticide residue detection machine based on food safety, and relates to the technical field of pesticide residue detection machines, the food pesticide residue detection machine comprises a base, the upper surface of the base is provided with a plurality of groups of jacks; the disinfection part comprises a mounting frame and a plurality of groups of alcohol cotton swabs; according to the utility model, the designed self-adaptive fixing mechanism is combined with the driving assembly, so that reagent tubes with different diameters and sizes can be clamped and fixed after being put into the corresponding insertion holes in the base in the detection process; a plurality of Z-shaped plates on the table plate rotate to drive a limiting barrel on a rotating rod to rotate so as to clamp and fix the reagent tubes, and the applicability of the detection machine for fixing the reagent tubes with different diameters is improved; and through the disinfection part, after detection is completed, an alcohol cotton swab on the disinfection part can move downwards into the reagent tube and rotate to wipe and disinfect the mixed liquid on the inner wall, the condition that the reagent tube is taken out independently for cleaning and disinfection is not needed, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of pesticide residue detection machines, specifically a food pesticide residue detection machine based on food safety. Background Technology

[0002] Pesticide residues in food refer to the residues of pesticides that remain in organisms, harvested products, etc., after a period of time following pesticide application and are not decomposed. Pesticide residues in agricultural products are generally detected by pesticide residue testing machines.

[0003] Chinese patent application number 201811363935.0 discloses a rapid pesticide residue detection instrument for food safety. This patent involves placing a reagent tube containing a mixture of food slices or juice and solvent into a socket in the detector, with a stopper covering the top of the tube. A spring-loaded mechanism moves a plate back and forth, causing the reagent tube to move back and forth, thus thoroughly agitating and mixing the solution to ensure accurate subsequent testing. However, the socket requires reagent tubes of uniform diameter, which vary. When testing mixtures in reagent bottles with larger or smaller diameters, the tubes cannot be inserted, limiting the detector's applicability to mixtures in tubes of different diameters. Furthermore, after each test, the reagent tubes need to be removed for cleaning and disinfection, slowing down the testing process. Therefore, we propose a food pesticide residue detection instrument based on food safety principles. Utility Model Content

[0004] The purpose of this invention is to provide a food pesticide residue detection machine based on food safety, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a food pesticide residue detection machine based on food safety, including a base, the upper surface of which is provided with multiple sets of insertion holes, the inside of which is provided with reagent tubes, and the base is provided with an adaptive fixing mechanism for fixing reagent tubes of different diameters.

[0006] The adaptive fixing mechanism includes a base column fixed inside the socket and a platform installed on the top of the base column. Multiple sets of upper discs are evenly distributed on the outer side of the platform and along the circumference of the platform. A T-shaped rotating column is rotatably arranged inside the upper disc, and a Z-shaped plate is arranged on the outer side of the T-shaped rotating column.

[0007] The Z-shaped plate has a rotating rod rotatably mounted at its end, and a limiting sleeve is fixedly fitted around the rotating rod.

[0008] Preferably, a placement platform is fixedly provided on the top of the platform, and the bottom of the reagent tube is in contact with the top of the placement platform.

[0009] Preferably, the limiting cylinder has multiple sets of through holes inside, and a movable column is slidably arranged inside the through holes. One end of the movable column is fixedly provided with a limiting rubber head.

[0010] A telescopic spring is fixedly installed at the other end of the movable column, and the telescopic spring is fixedly connected to the inner wall of the through hole.

[0011] Preferably, the base is provided with a drive assembly, which includes two sets of racks slidably disposed inside the base. A bottom disc is fixedly disposed at the bottom of the T-shaped rotating column. A support bearing is fixedly sleeved on the outside of the bottom column. A lower ring is fixedly sleeved on the outside of the support bearing.

[0012] Preferably, a connecting bearing is also fitted and fixed to the outside of the bottom column, and three sets of connecting rods are fixedly arranged between the connecting bearing and the lower ring. A gear is fixedly arranged on the outside of the connecting bearing, and the gear meshes with the rack.

[0013] Preferably, a cross plate is fixedly provided at the ends of the two sets of racks, a mounting block is fixedly provided on one side of the base, and a hydraulic cylinder is provided between the mounting block and the cross plate.

[0014] Preferably, the top of the base is provided with a disinfection component for wiping and disinfecting the inner wall of the reagent tube. The disinfection component includes a mounting frame and multiple sets of alcohol swabs. Two sets of T-shaped sliding frames are slidably arranged inside the mounting frame. An upper loop frame is fixedly arranged at the end of the T-shaped sliding frame. Two sets of lifting rods are fixedly arranged on the upper loop frame. A lower loop frame is fixedly arranged at the working end of the lifting rod. Multiple sets of upper columns are fixedly arranged at the bottom of the lower loop frame.

[0015] The bottom of the upper column is provided with an upper magnet, and the bottom of the upper magnet is magnetically attracted to an iron sheet. The top of the upper magnet is rotatably connected to the upper column through a rotating shaft.

[0016] A rotating collar is fixedly fitted around the upper magnet, and a horizontal hydraulic rod is fixedly installed at the bottom of the lower circular frame. A moving bar is fixedly installed at the working end of the horizontal hydraulic rod.

[0017] Preferably, a support plate is fixedly provided on one side of the base, a fixing plate is provided on the support plate, and a rubber plate is fixedly provided at the bottom of the fixing plate.

[0018] Preferably, a main unit is fixedly mounted on the front of the base, and multiple sets of detection slots are opened inside the main unit. Detection dishes are set inside the detection slots. A cover is rotatably connected to the top of the main unit via two sets of rotating rods, and an operation screen is fixedly mounted on the top of the main unit.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] (1) This utility model combines an adaptive fixing mechanism and a drive component to clamp and fix reagent tubes of different diameters into the corresponding holes in the base during the testing process. The reagent tubes are clamped and fixed by rotating multiple Z-shaped plates on the platform and driving the limiting cylinder on the rotating rod to rotate. This increases the applicability of the testing machine to fixing reagent tubes of different diameters. The movement of the rack and pinion driven by the hydraulic cylinder can simultaneously drive multiple sets of gears and the limiting cylinder to rotate and automatically clamp and fix the reagent tubes placed on the platform. No manual operation of fixing the reagent tubes is required. The operation is convenient, time-saving and labor-saving.

[0021] (2) The present invention has a disinfection component designed so that after the test is completed, the alcohol swab on the disinfection component can be moved down into the reagent tube and rotated to wipe and disinfect the mixture on the inner wall. There is no need to take out the reagent tube separately for cleaning and disinfection, which reduces the operation steps and allows the next batch of mixture to be tested again quickly, thus improving the efficiency of the test. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the right side of the base structure of this utility model;

[0024] Figure 3 This is a bottom view schematic diagram of the adaptive fixing mechanism of this utility model;

[0025] Figure 4 This is a schematic diagram of the platform structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the limiting cylinder structure of this utility model;

[0027] Figure 6 This is a partial cross-sectional view of the limiting cylinder of this utility model;

[0028] Figure 7 This is a schematic diagram of the gear structure of this utility model;

[0029] Figure 8 This is a bottom view schematic diagram of the lower ring structure of this utility model;

[0030] Figure 9 This is a schematic diagram of the mounting frame structure on the right side of this utility model;

[0031] Figure 10 This is a schematic diagram of the structure of the alcohol swab of this utility model;

[0032] Figure 11 This is a schematic diagram of the host structure of this utility model;

[0033] In the diagram: 100, base; 101, socket; 102, support plate; 103, rubber plate; 104, fixing plate; 105, reagent tube; 106, buffer pad; 107, lower plate; 108, lid; 109, main unit; 110, operation panel; 111, detection dish; 112, detection slot; 200, platform; 201, Z-shaped plate; 202, limiting cylinder; 203, upper disc; 205, bottom column; 206, T-shaped rotating column; 207, bottom disc; 208, lower ring; 209, rotating rod; 210, moving column; 211, limiting rubber head. ; 212, Telescopic spring; 213, Through hole; 214, Placement platform; 215, Support bearing; 216, Connecting rod; 300, Horizontal plate; 301, Rack; 302, Hydraulic cylinder; 303, Mounting block; 304, Gear; 305, Connecting bearing; 400, Mounting frame; 401, Alcohol swab; 402, Upper column; 403, Lower loop frame; 404, Upper loop frame; 405, Lifting rod; 406, T-shaped sliding frame; 407, Moving bar; 408, Rotating collar; 409, Iron sheet; 410, Upper magnet; 411, Horizontal hydraulic rod. Detailed Implementation

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

[0035] Example 1

[0036] Please see Figures 1-8 This utility model provides a technical solution: a food pesticide residue detection machine based on food safety, including a base 100, with multiple sets of insertion holes 101 on the upper surface of the base 100, and a reagent tube 105 inside the insertion hole 101. The reagent tube 105 contains a mixture of solvent and agricultural product slices or juice. The base 100 is provided with an adaptive fixing mechanism for fixing reagent tubes 105 of different diameters.

[0037] The adaptive fixing mechanism includes a base post 205 fixed inside the socket 101 and a platform 200 installed on top of the base post 205. Multiple upper discs 203 are evenly distributed on the outer side of the platform 200 and along the circumference of the platform 200. A T-shaped rotating column 206 is rotatably arranged inside the upper disc 203. When the T-shaped rotating column 206 rotates, it will drive the Z-shaped plate 201 to rotate. The Z-shaped plate 201 is fixedly arranged on the outside of the T-shaped rotating column 206.

[0038] A rotating rod 209 is rotatably provided at the end of the Z-shaped plate 201. The rotating rod 209 moves with the rotation of the Z-shaped plate 201, and a limiting sleeve 202 is fixedly sleeved on the outside of the rotating rod 209.

[0039] A placement platform 214 is fixedly installed on the top of the platform 200. The reagent tube 105 to be tested is placed on the placement platform 214, and the bottom of the reagent tube 105 is in contact with the top of the placement platform 214.

[0040] The limiting cylinder 202 has multiple sets of through holes 213 inside. A movable column 210 is slidably arranged inside the through hole 213. The movable column 210 will slide back and forth inside the through hole 213. A limiting rubber head 211 is fixedly provided at one end of the movable column 210.

[0041] A telescopic spring 212 is fixedly installed at the other end of the movable column 210. The telescopic spring 212 can make the limiting rubber head 211 press tightly against the reagent tube 105, and the telescopic spring 212 is fixedly connected to the inner wall of the through hole 213.

[0042] The base 100 is equipped with a drive assembly, which includes two sets of racks 301 that are slidably disposed inside the base 100. When the racks 301 move, they can drive the gears 304 to rotate. The bottom of the T-shaped rotating column 206 is fixedly provided with a bottom disc 207. The bottom column 205 is fitted with a support bearing 215. The support bearing 215 can support the lower ring 208 and facilitate its rotation. The lower ring 208 is fitted with a support bearing 215.

[0043] A connecting bearing 305 is also fixedly fitted on the outside of the base column 205. A connecting rod 216 is fixedly installed between the connecting bearing 305 and the lower ring 208. The connecting bearing 305 can support the gear 304 and facilitate its rotation. The gear 304 is fixedly installed on the outside of the connecting bearing 305. The gear 304 meshes with the rack 301. The rack 301 can slide back and forth inside the base 100.

[0044] A horizontal plate 300 is fixedly installed at the end of the two sets of racks 301, and a mounting block 303 is fixedly installed on one side of the base 100. A hydraulic cylinder 302 is installed between the mounting block 303 and the horizontal plate 300, and the racks 301 can be driven to move back and forth by the hydraulic cylinder 302.

[0045] Example 2

[0046] Please refer to Example 1. Figure 1 , Figure 9 , Figure 10 and Figure 11 A disinfection component is provided on the top of the base 100. The disinfection component is located on the top of the base 100 and is used to wipe and disinfect the inner wall of the reagent tube 105.

[0047] The disinfection component includes a mounting frame 400 and multiple sets of alcohol swabs 401. Two sets of T-shaped sliding frames 406 are slidably arranged inside the mounting frame 400. An upper loop frame 404 is fixedly arranged at the end of the T-shaped sliding frame 406. Two sets of lifting rods 405 are fixedly arranged on the upper loop frame 404. A lower loop frame 403 is fixedly arranged at the working end of the lifting rod 405. Multiple sets of upper columns 402 are fixedly arranged at the bottom of the lower loop frame 403.

[0048] The bottom of the upper column 402 is provided with an upper magnet 410, and the bottom of the upper magnet 410 is magnetically attracted to an iron sheet 409. The top of the alcohol swab 401 is fixed to the bottom of the iron sheet 409. The iron sheet 409 and the upper magnet 410 are connected by adsorption, which makes it easy to replace the alcohol swab 401. The top of the upper magnet 410 and the upper column 402 are rotatably connected by a rotating shaft.

[0049] A rotating collar 408 is fixedly fitted around the upper magnet 410. The rotating collar 408 can be rotated by the reciprocating movement of the moving bar 407 in the left and right directions, which in turn can drive the alcohol swab 401 to rotate. After the alcohol swab 401 has wiped and disinfected the inner wall of the reagent tube 105, the alcohol will evaporate and will not affect the food juice contained in the reagent tube 105. A horizontal hydraulic rod 411 is fixedly installed at the bottom of the lower ring frame 403. A moving bar 407 is fixedly installed at the working end of the horizontal hydraulic rod 411, and the moving bar 407 is in contact with the rotating collar 408.

[0050] In this embodiment, a support plate 102 is fixedly provided on one side of the base 100, a fixing plate 104 is provided on the support plate 102, and a rubber plate 103 is provided at the bottom of the fixing plate 104. The rubber plate 103 can cover the top of the reagent tube 105 to prevent the mixture of solution and agricultural product juice in the reagent tube 105 from splashing out during the shaking process. A lower plate 107 is fixedly provided on the top of the rubber plate 103, and a buffer pad 106 is fixedly provided between the lower plate 107 and the fixing plate 104. A vibration motor is provided on the lower plate 107.

[0051] In this embodiment, a main unit 109 is fixedly mounted on the front of the base 100. Multiple detection slots 112 are opened inside the main unit 109, and detection dishes 111 are set inside the detection slots 112. The top of the main unit 109 is connected to a cover 108 by two sets of rotating rods. An operation screen 110 is fixedly mounted on the top of the main unit 109. After shaking is completed, the reagent tube 105 is taken out and the mixture in the reagent tube 105 is poured into the corresponding detection dish 111. Then the cover 108 is closed. At this time, the operation screen 110 is used to turn on the main unit 109. At this time, the ultraviolet spectrophotometer located inside the main unit 109 measures the absorption of pesticide molecules in the mixture by ultraviolet light of a specific wavelength to detect pesticide residues. Some groups in the pesticide molecules will undergo electronic energy level transitions after absorbing ultraviolet light. The characteristics of this transition can be used to identify and quantify pesticide components. By displaying the absorption spectrum on the operation screen 110, the characteristic absorption peaks of the pesticide can be determined, thereby performing qualitative analysis. At the same time, quantitative analysis can be performed based on the absorption intensity to estimate the pesticide residue.

[0052] Working principle and usage process of this utility model:

[0053] In use, reagent tubes 105 of different diameters are placed on the placement platform 214 in the insertion hole 101. Then, the hydraulic cylinder 302 is activated. At this time, the working end of the hydraulic cylinder 302 extends outward, driving the horizontal plate 300 and the rack 301 to move. The rack 301 can drive the meshing gear 304 to rotate, which in turn drives the lower ring 208 to rotate through the connecting rod 216, driving the bottom disc 207 and the T-shaped rotating column 206 to rotate simultaneously. The Z-shaped plate 201 and the limiting cylinder 202 rotate in the same direction. At this time, multiple limiting cylinders 202 converge towards the reagent tube 105. Then, the limiting rubber head 211 on the limiting cylinder 202 contacts the outer wall of the reagent tube 105. When the Z-shaped plate 201 and the limiting cylinder 202 continue to rotate, the limiting rubber head 211 and the moving column 210 move towards the through hole 213. At this time, the telescopic spring 212 is compressed, which increases the fixing effect on the reagent tube 105.

[0054] After the reagent tube 105 is fixed and stopped rotating, the rubber plate 103 can be lowered by the lowering of the fixing plate 104. Finally, the bottom of the rubber plate 103 covers the top of the reagent tube 105. Then, the vibration motor located in the lower plate 107 is turned on to start the vibration and mixing of the reagent tube 105, so that the agricultural product slices or juice in the reagent tube 105 are fully mixed evenly. During the vibration and mixing process, the reagent tube 105 will vibrate. At this time, the telescopic spring 212 squeezes the moving column 210 outward so that the limiting rubber head 211 can be tightly attached to the outer wall of the reagent tube 105. This can increase the fixing effect of the reagent tube 105 and not affect the vibration of the reagent tube 105. After the vibration is completed, the reagent tube 105 is taken out and the mixture in the reagent tube 105 is poured into the test dish 111. Then the lid 108 is put on, and the test begins.

[0055] Simultaneously, the empty reagent tube 105, from which the mixture has been poured out, is reinserted into the corresponding position within the insertion hole 101. At this point, the residual mixture on the inner wall of the reagent tube 105 is wiped and disinfected. During wiping and disinfection, the upper loop frame 404 is moved upwards towards the base 100, thereby causing the two sets of T-shaped sliding frames 406 to slide within the mounting frame 400. Once the frames reach the appropriate position, the movement stops. Then, the lower loop frame 403 is activated, causing multiple sets of alcohol swabs 401 to move downwards, finally inserting them into the reagent tube 10. 5. Then, activate the horizontal hydraulic rod 411. The working end of the horizontal hydraulic rod 411 moves to the left, causing the moving bar 407 to move. Then, the moving bar 407 drives the rotating collar 408 to rotate, which in turn drives the iron sheet 409 and the alcohol swab 401 to rotate, wiping and disinfecting the mixed liquid residue on the inner wall of the reagent tube 105. After wiping, move back to the original position according to the reverse principle. Finally, pour the new food juice and solvent into the reagent tube 105 and shake it to improve the detection progress.

[0056] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A food pesticide residue detection machine based on food safety, comprising a base (100), wherein a plurality of sockets (101) are provided on the upper surface of the base (100), and a reagent tube (105) is disposed inside the socket (101), characterized in that: The base (100) is provided with an adaptive fixing mechanism for fixing reagent tubes (105) of different diameters; The adaptive fixing mechanism includes a base post (205) fixed inside the insertion hole (101) and a platform (200) installed on the top of the base post (205). Multiple sets of upper discs (203) are evenly distributed on the outer side of the platform (200) and along the circumference of the platform (200). A T-shaped rotating column (206) is rotatably arranged inside the upper disc (203), and a Z-shaped plate (201) is arranged on the outer side of the T-shaped rotating column (206). The Z-shaped plate (201) is rotatably provided with a rotating rod (209) at its end, and a limiting sleeve (202) is fixedly sleeved on the outside of the rotating rod (209).

2. The food pesticide residue detection machine based on food safety according to claim 1, characterized in that: A placement platform (214) is fixedly provided on the top of the platform (200), and the bottom of the reagent tube (105) is in contact with the top of the placement platform (214).

3. The food pesticide residue detection machine based on food safety according to claim 1, characterized in that: The limiting cylinder (202) has multiple sets of through holes (213) inside, and a movable column (210) is slidably arranged inside the through hole (213). One end of the movable column (210) is fixedly provided with a limiting rubber head (211). A telescopic spring (212) is fixedly provided at the other end of the movable column (210), and the telescopic spring (212) is fixedly connected to the inner wall of the through hole (213).

4. The food pesticide residue detection machine based on food safety according to claim 1, characterized in that: The base (100) is provided with a drive assembly inside. The drive assembly includes two sets of racks (301) that are slidably disposed inside the base (100). A bottom disc (207) is fixedly disposed at the bottom of the T-shaped rotating column (206). A support bearing (215) is sleeved and fixed on the outside of the bottom column (205). A lower ring (208) is sleeved and fixed on the outside of the support bearing (215).

5. A food pesticide residue detection machine based on food safety according to claim 4, characterized in that: A connecting bearing (305) is also fixedly fitted on the outside of the bottom column (205). Three sets of connecting rods (216) are fixedly arranged between the connecting bearing (305) and the lower ring (208). A gear (304) is fixedly arranged on the outside of the connecting bearing (305). The gear (304) meshes with the rack (301).

6. A food pesticide residue detection machine based on food safety according to claim 5, characterized in that: A horizontal plate (300) is fixedly provided at the ends of the two sets of racks (301), and a mounting block (303) is fixedly provided on one side of the base (100). A hydraulic cylinder (302) is provided between the mounting block (303) and the horizontal plate (300).

7. A food pesticide residue detection machine based on food safety according to claim 1, characterized in that: The base (100) is provided with a disinfection component at the top for wiping and disinfecting the inner wall of the reagent tube (105). The disinfection component includes a mounting frame (400) and multiple sets of alcohol swabs (401). Two sets of T-shaped sliding frames (406) are slidably arranged inside the mounting frame (400). An upper loop frame (404) is fixedly arranged at the end of the T-shaped sliding frame (406). Two sets of lifting rods (405) are fixedly arranged on the upper loop frame (404). A lower loop frame (403) is fixedly arranged at the working end of the lifting rod (405). Multiple sets of upper columns (402) are fixedly arranged at the bottom of the lower loop frame (403). The bottom of the upper column (402) is provided with an upper magnet (410), and an iron sheet (409) is magnetically attracted to the bottom of the upper magnet (410). The top of the upper magnet (410) is rotatably connected to the upper column (402) through a rotating shaft. A rotating collar (408) is fixedly fitted around the upper magnet (410), and a horizontal hydraulic rod (411) is fixedly installed at the bottom of the lower circular frame (403). A moving bar (407) is fixedly installed at the working end of the horizontal hydraulic rod (411).

8. A food pesticide residue detection machine based on food safety according to claim 1, characterized in that: A support plate (102) is fixedly installed on one side of the base (100), and a fixing plate (104) is installed on the support plate (102). A rubber plate (103) is fixedly installed at the bottom of the fixing plate (104).

9. A food pesticide residue detection machine based on food safety according to claim 1, characterized in that: The base (100) has a main unit (109) fixedly installed on its front side. The main unit (109) has multiple sets of detection slots (112) inside. The detection slots (112) are equipped with detection dishes (111). The top of the main unit (109) is connected to a cover (108) by two sets of rotating rods. The top of the main unit (109) has an operation screen (110) fixedly installed on its top side.

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