Multifunctional pretreatment integrated device

Abstract

This utility model discloses a multifunctional pretreatment integrated device, relating to the field of pesticide residue detection technology. It includes an integrated box and a mounting frame. The integrated box has a lid-opening mechanism on its top and a detection mechanism on its inner bottom left side. This detection mechanism is used to detect pesticides in tropical vegetables. The mounting frame has an installation mechanism on its inner top side, which is used for quick disassembly and easy cleaning. The detection mechanism includes a feeding cylinder, the bottom of which is installed on the inner bottom left side of the integrated box. A sliding hole is formed on the inner bottom of the feeding cylinder. In this utility model, by placing the raw material into the feeding cylinder and inverting it, a sliding column is pushed downwards along the sliding hole. The sliding column drives a scraper downwards, and the scraper scrapes the raw material remaining on the inner wall of the feeding cylinder to the bottom. This reduces raw material residue, provides good separation and treatment effects, and improves the accuracy and reliability of detection.

Description

Technical Field

[0001] This utility model relates to the field of pesticide residue detection technology, and in particular to a multifunctional pretreatment integrated device. Background Technology

[0002] The multifunctional integrated sample pretreatment device is an automated or semi-automated device that integrates multiple key steps in sample pretreatment. Its core objective is to replace the cumbersome process of traditional manual operation. It is used to develop a pretreatment extraction and purification method for seven novel pesticide hazard factors in tropical vegetables (using tomatoes and water chestnuts as substrates): pendimethalin, acaricide, cymoxanil, spirodiclofen, carbendazim, and isothiazine. The developed pretreatment method can accurately extract the target compounds, and the recovery rate can meet the methodological requirements. It realizes the high efficiency, standardization, and integration of sample pretreatment before pesticide residue detection, and provides purer and more stable test samples for subsequent instrument detection.

[0003] A search revealed Chinese patent publication number CN222439392U, which discloses a pesticide detection device belonging to the field of pesticide detection technology. The device aims to solve the problem of existing technologies where the crushing blades are fixed inside the device, making cleaning inconvenient and leaving blind spots where pesticide residues from the previous batch of agricultural products can remain, leading to errors in the detection results. The device includes a workbench with an electric telescopic rod mounted on its upper surface. A horizontal plate is mounted on the upper end of the telescopic rod, and a first motor is mounted on the upper surface of the horizontal plate. The first motor is connected to a vertical rod that passes through the horizontal plate and is rotatably connected to a bucket lid. A connecting component is mounted on the lower end of the vertical rod. This pesticide detection device, through the connecting component, achieves the movable connection of the blades. After the crushing operation is completed, the blades can be easily removed for thorough cleaning, preventing pesticide residues from affecting the next detection operation. The device integrates crushing and vibration, achieving a high degree of integration. However, in actual use, when crushing tropical vegetables, some samples may adhere to the inner wall of the container, resulting in the loss of some target material and reducing the accuracy and reliability of the detection. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multifunctional pretreatment integrated device, which aims to improve the problem that when tropical vegetables are crushed, samples may adhere to the inner wall of the container, resulting in the loss of some target substances and reducing the accuracy and reliability of detection.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-functional pretreatment integrated device, including an integrated box and a mounting frame. The top of the integrated box is provided with an opening mechanism, and the bottom left end of the inner side of the integrated box is provided with a detection mechanism for detecting pesticides in tropical vegetables. The top of the inner side of the mounting frame is provided with an installation mechanism for quick disassembly and easy cleaning.

[0006] The detection mechanism includes a discharge cylinder, the bottom of which is installed on the left side of the inner bottom of the integrated box. A sliding hole is provided on the bottom of the inner side of the discharge cylinder, and a sliding column is slidably connected inside the sliding hole. A scraper is fixedly connected to the top of the outer wall of the sliding column. A rubber ring is provided on the top of the inner side of the discharge cylinder. A limit component is provided at the bottom of the discharge cylinder. A crushing component is provided at the top of the discharge cylinder. A centrifugal component is provided at the right end of the bottom of the inner side of the integrated box. A solid phase extraction component is provided at the front end of the bottom of the inner side of the integrated box. A detection component is provided on the front side of the integrated box.

[0007] The above technical solution involves placing raw materials into a feeding cylinder, sealing the top with a rubber ring, activating the crushing component to shred the raw materials, and using a limiting component to restrict the rotation of the feeding cylinder. After crushing, a sliding column drives a scraper to remove residual raw materials, which are then transferred to a centrifugal component for solid-liquid separation. The liquid is then processed by a solid-phase extraction component and transferred to a detection component for testing. This method enables effective detection of pesticides in tropical vegetables, ensures a stable crushing process, reduces raw material residue, provides good separation and processing effects, improves the accuracy and reliability of detection, and guarantees the smooth operation of the detection process.

[0008] As a further description of the above technical solution:

[0009] The installation mechanism includes multiple installation blocks. The tops of the multiple installation blocks are fixedly connected to the inner top of the cover opening mechanism. The outer walls of the multiple installation blocks are slidably connected to the same installation plate. The bottom four corners of the installation plate are threaded with bolts. The outer walls of the multiple installation blocks are provided with slots. The two front slots and the two rear slots are slidably connected to the same locking strip. The bottom left and right sides of the two locking strips are threaded with bolts.

[0010] The above technical solution achieves stable installation and quick disassembly of the mounting plate by sliding it onto the outer wall of the mounting block, initially fixing it by rotating bolt one, then inserting the retaining strip into the slot and fixing the retaining strip by rotating bolt two. During disassembly, rotating bolt two in the opposite direction removes the retaining strip, rotating bolt one in the opposite direction pushes the mounting plate to slide it off for cleaning. This allows for convenient cleaning of the crushing components, ensuring cleanliness of parts, reducing interference from impurities, and improving the convenience of device maintenance and the accuracy of testing.

[0011] As a further description of the above technical solution:

[0012] The opening mechanism includes a top cover, the bottom of which is located on the top of the integrated box. The top left and right sides of the integrated box are fixedly connected with buckle fasteners, the bottom left and right sides of the top cover are fixedly connected with pipe clamps, the four corners of the top of the integrated box are fixedly connected with positioning pins, and the four corners of the bottom of the top cover are provided with positioning grooves.

[0013] The above technical solution achieves precise positioning of the top cover through the cooperation of the positioning pin and the positioning groove, and fixes the top cover position by the cooperation of the pipe clamp and the buckle fastener, which facilitates opening and closing. This achieves precise installation and stable fixation of the top cover, while ensuring the convenience of opening and closing the top cover and improving the ease of use of the device.

[0014] As a further description of the above technical solution:

[0015] The limiting component includes two limiting posts, the bottoms of which are fixedly connected to the bottom left end of the inner side of the integrated box, and the bottom of the feeding cylinder has two limiting grooves.

[0016] The above technical solution restricts the rotation of the discharge cylinder by the cooperation of the limiting column and the limiting groove, ensuring that the discharge cylinder maintains a stable position during the raw material processing, avoiding the impact of rotation on the processing effect, providing a stable foundation for subsequent raw material crushing and other operations, and ensuring the stability of the processing process.

[0017] As a further description of the above technical solution:

[0018] The crushing assembly includes a motor, the bottom of which is fixedly connected to the inner bottom of the mounting frame. The output end of the motor passes through the inner bottom of the mounting frame and is fixedly connected to a connecting rod. Multiple cutting blades are fixedly connected to the bottom of the outer wall of the connecting rod, and a baffle is fixedly connected to the top of the outer wall of the connecting rod.

[0019] The above technical solution achieves effective crushing of raw materials by rotating the connecting rod through the motor output, which in turn drives the cutting blade to rotate and crush the raw materials. The baffle prevents the raw materials from splashing upwards, thus preventing waste and pollution caused by material splashing and ensuring the high efficiency and cleanliness of the crushing process.

[0020] As a further description of the above technical solution:

[0021] The centrifugation assembly includes a centrifuge. The bottom of the centrifuge is fixedly connected to the bottom right end of the inner side of the integrated box. The top of the centrifuge has multiple placement slots. Placement tubes are slidably connected inside the multiple placement slots. The top of the outer wall of the multiple placement tubes is slidably connected to the same funnel.

[0022] The above technical solution guides the raw materials precisely into the placement tube through a funnel, preventing spillage. The centrifuge generates centrifugal force to separate the solids and liquids in the raw materials, achieving precise transfer and efficient solid-liquid separation of the raw materials, reducing raw material loss, and ensuring the reliability of the separation effect.

[0023] As a further description of the above technical solution:

[0024] The solid phase extraction assembly includes a mounting frame, the bottom of which is fixedly connected to the front end of the inner bottom of the integrated box, a plurality of solid phase extraction columns are fixedly connected to the top inner side of the mounting frame, and a collection box is slidably connected to the bottom inner side of the mounting frame.

[0025] The above technical solution achieves stable installation of the solid-phase extraction column through the cooperation of the fixing frame and the solid-phase extraction column, and collects the processed liquid through the cooperation of the collection box and the fixing frame. This ensures the stable operation of the solid-phase extraction column and the effective collection of the processed liquid, providing qualified samples for subsequent testing and ensuring the stability of the extraction and collection process.

[0026] As a further description of the above technical solution:

[0027] The detection assembly includes a gas chromatograph, the rear of which is fixedly connected to the front of the integrated box. A display screen is fixedly connected to the top right side of the gas chromatograph, and a button is fixedly connected to the bottom right side of the gas chromatograph.

[0028] The above technical solution, which combines gas chromatograph and buttons to control the detection operation and gas chromatograph and display screen to show the detection results, enables effective detection of pesticides in the treated liquid and clear presentation of the results. This provides accurate data support for pesticide detection and ensures the accuracy and intuitiveness of the detection.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, by placing the raw material into the feeding cylinder, inverting the feeding cylinder, and pushing the sliding column to slide downward along the sliding hole, the sliding column drives the scraper to move downward. The scraper scrapes the raw material remaining on the inner wall of the feeding cylinder to the bottom, thereby reducing raw material residue, achieving good separation and processing effect, and improving the accuracy and reliability of detection.

[0031] 2. In this utility model, by sliding the mounting plate onto the outer wall of the mounting block to a suitable position, rotating bolt one for initial fixation, inserting the clip into the slot, and rotating bolt two to fix the clip; during disassembly, rotating bolt two in the opposite direction to remove the clip, rotating bolt one in the opposite direction, and pushing the mounting plate to slide off for cleaning, the mounting plate is securely installed and quickly disassembled, which facilitates cleaning of the crushing components, ensures component cleanliness, reduces impurity interference, and improves the convenience of device maintenance and the accuracy of testing. Attached Figure Description

[0032] Figure 1 This is a perspective view of the multifunctional pretreatment integrated device proposed in this utility model.

[0033] Figure 2 This is an exploded view of the opening mechanism of the multifunctional pretreatment integrated device proposed in this utility model.

[0034] Figure 3 This is an exploded view of the detection mechanism of the multifunctional pretreatment integrated device proposed in this utility model.

[0035] Figure 4 This is an exploded view of the centrifuge component of the multifunctional pretreatment integrated device proposed in this utility model.

[0036] Figure 5 This is an exploded view of the solid phase extraction component of the multifunctional pretreatment integrated device proposed in this utility model.

[0037] Figure 6 This is an exploded view of the mounting mechanism of the multifunctional pretreatment integrated device proposed in this utility model.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Integrated box; 2. Opening mechanism; 21. Top cover; 22. Buckle fastener; 23. Pipe clamp; 24. Positioning pin; 25. Positioning groove; 3. Detection mechanism; 31. Feeding cylinder; 32. Sliding hole; 33. Sliding column; 34. Scraper; 35. Rubber ring; 36. Limiting component; 361. Limiting column; 362. Limiting groove; 37. Crushing component; 371. Motor; 372. Connecting rod; 373. Cutting blade; 374. Baffle; 38. Centrifugal component 381. Centrifuge; 382. Placement tank; 383. Placement tube; 384. Funnel; 39. Solid phase extraction assembly; 391. Fixing frame; 392. Solid phase extraction column; 393. Collection box; 310. Detection assembly; 3101. Gas chromatograph; 3102. Display screen; 3103. Button; 4. Mounting bracket; 5. Mounting mechanism; 51. Mounting block; 52. Mounting plate; 53. Bolt 1; 54. Slot; 55. Clip; 56. Bolt 2. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Reference Figure 2 and Figure 3 An embodiment of this utility model is provided: a multifunctional pretreatment integrated device, including an integrated box 1 and a mounting frame 4. The top of the integrated box 1 is provided with an opening mechanism 2, and the bottom left end of the inner side of the integrated box 1 is provided with a detection mechanism 3, which is used to detect pesticides in tropical vegetables. The top of the inner side of the mounting frame 4 is provided with a mounting mechanism 5, which is used for quick disassembly and easy cleaning.

[0042] The testing mechanism 3 includes a feeding cylinder 31, the bottom of which is installed on the left side of the bottom inner side of the integrated box 1. A sliding hole 32 is provided on the bottom inner side of the feeding cylinder 31. A sliding column 33 is slidably connected inside the sliding hole 32. A scraper 34 is fixedly connected to the top of the outer wall of the sliding column 33. A rubber ring 35 is provided on the top inner side of the feeding cylinder 31. A limit component 36 is provided at the bottom of the feeding cylinder 31. A crushing component 37 is provided at the top of the feeding cylinder 31. A centrifugal component 38 is provided at the right end of the bottom inner side of the integrated box 1. A solid phase extraction component 39 is provided at the front end of the bottom inner side of the integrated box 1. A testing component 310 is provided on the front side of the integrated box 1.

[0043] Specifically, when testing for pesticides in tropical vegetables, the raw material is placed inside the feeding cylinder 31, the rubber ring 35 seals the top of the feeding cylinder 31, the crushing component 37 is activated to crush the raw material inside the feeding cylinder 31, and the limiting component 36 restricts the rotation of the feeding cylinder 31 to ensure the stability of the crushing process.

[0044] After crushing, the feeding cylinder 31 is inverted, and the sliding column 33 is pushed to slide down along the sliding hole 32. The sliding column 33 drives the scraper 34 to move down. The scraper 34 scrapes the raw material remaining on the inner wall of the feeding cylinder 31 to the bottom, and the crushed raw material is transferred to the centrifugal component 38. The centrifugal component 38 performs solid-liquid separation on the raw material. The separated liquid is transferred to the solid phase extraction component 39. After being processed by the solid phase extraction component 39, the liquid is transferred to the detection component 310. The detection component 310 detects pesticides in tropical vegetables.

[0045] The raw materials are shredded by the crushing component 37; the raw materials are scraped off the inner wall of the feeding cylinder 31 by the cooperation of the sliding column 33 and the scraper 34; the solid-liquid separation of the raw materials is achieved by the centrifugation component 38; and the pesticide detection is achieved by the cooperation of the solid phase extraction component 39 and the detection component 310, enabling the detection agency 3 to detect pesticides in tropical vegetables.

[0046] Reference Figure 6 The installation mechanism 5 includes multiple installation blocks 51. The tops of the multiple installation blocks 51 are fixedly connected to the inner top of the cover opening mechanism 2. The outer walls of the multiple installation blocks 51 are slidably connected to the same installation plate 52. The four corners at the bottom of the installation plate 52 are threaded with bolts 53. The outer walls of the multiple installation blocks 51 are provided with slots 54. The two front slots 54 and the two rear slots 54 are slidably connected to the same locking strip 55. The bottom left and right sides of the two locking strips 55 are threaded with bolts 56.

[0047] Specifically, during installation, the mounting plate 52 is placed on the outer wall of multiple mounting blocks 51, allowing the mounting plate 52 to slide along the outer wall of the mounting blocks 51 to a suitable position. The first bolt 53 is rotated so that the top of the first bolt 53 contacts the bottom of the mounting block 51. The mounting plate 52 is initially fixed by the cooperation between the first bolt 53 and the mounting plate 52. The front retaining strip 55 is inserted into the two front retaining slots 54, and the rear retaining strip 55 is inserted into the two rear retaining slots 54. The second bolt 56 is rotated so that the top of the second bolt 56 contacts the bottom of the mounting block 51. The relative sliding between the mounting block 51 and the mounting plate 52 is restricted by the cooperation between the retaining strip 55 and the retaining slots 54. The position of the retaining strip 55 is fixed by the cooperation between the second bolt 56 and the retaining strip 55.

[0048] During disassembly, rotate bolt 2 56 in the opposite direction to disengage it from mounting block 51, slide the retaining strip 55 out of the retaining groove 54, rotate bolt 1 53 in the opposite direction to disengage it from mounting block 51, push mounting plate 52 to slide along the outer wall of mounting block 51, and then remove mounting plate 52 for cleaning.

[0049] The mounting plate 52 is slidably installed by the cooperation of the mounting block 51 and the mounting plate 52. The mounting plate 52 is initially fixed by the cooperation of the bolt 1 53 and the mounting plate 52. The relative movement between the mounting block 51 and the mounting plate 52 is restricted by the cooperation of the locking strip 55 and the locking groove 54. The position of the locking strip 55 is fixed by the cooperation of the bolt 2 56 and the locking strip 55, so that the mounting mechanism 5 can quickly disassemble the crushing component 37 for easy cleaning.

[0050] Reference Figure 2 , Figure 3 and Figure 6 The opening mechanism 2 includes a top cover 21, the bottom of which is located on the top of the integrated box 1. The top of the left and right sides of the integrated box 1 are fixedly connected with buckle fasteners 22, and the bottom of the left and right sides of the top cover 21 are fixedly connected with pipe clamps 23. The four corners of the top of the integrated box 1 are fixedly connected with positioning pins 24, and the four corners of the bottom of the top cover 21 are fixedly connected with positioning grooves 25. The limiting component 36 includes two limiting posts 361, the bottom of which is fixedly connected to the bottom left of the inner side of the integrated box 1. The bottom of the feeding cylinder 31 has two limiting grooves 362. The crushing component 37 includes a motor 371, the bottom of which is fixedly connected to the bottom of the mounting frame 4. The output end of the motor 371 passes through the bottom of the inner side of the mounting frame 4. The output end of the motor 371 is fixedly connected with a connecting rod 372. The bottom of the outer wall of the connecting rod 372 is fixedly connected with multiple cutting blades 373, and the top of the outer wall of the connecting rod 372 is fixedly connected with a baffle 374.

[0051] Specifically, when closing the top cover 21, align the positioning groove 25 at the bottom of the top cover 21 with the positioning pin 24 at the top of the integrated box 1, so that the positioning pin 24 is inserted into the positioning groove 25. The precise positioning of the top cover 21 is achieved through the cooperation of the positioning pin 24 and the positioning groove 25. Press the top cover 21 to make the pipe clamp 23 engage with the buckle retainer 22. The position of the top cover 21 is fixed by the cooperation of the pipe clamp 23 and the buckle retainer 22. When opening the top cover 21, operate the buckle retainer 22 to release the engagement with the pipe clamp 23, and lift the top cover 21 upwards.

[0052] When the feeding cylinder 31 is installed, the limiting groove 362 at its bottom is aligned with the limiting post 361, so that the limiting post 361 is inserted into the limiting groove 362. The rotation of the feeding cylinder 31 is restricted by the cooperation between the limiting post 361 and the limiting groove 362. When crushing raw materials, the motor 371 is started. The output end of the motor 371 drives the connecting rod 372 to rotate. The connecting rod 372 drives the cutting blade 373 to rotate. The cutting blade 373 crushes the raw materials in the feeding cylinder 31. The baffle 374 prevents the raw materials from splashing upward.

[0053] The precise positioning of the top cover 21 is achieved through the cooperation of the positioning pin 24 and the positioning groove 25; the fixing and opening / closing of the top cover 21 is achieved through the cooperation of the pipe clamp 23 and the buckle fixing device 22; the limiting position of the feeding cylinder 31 is achieved through the cooperation of the limiting post 361 and the limiting groove 362; and the crushing of raw materials is achieved through the cooperation of the motor 371, the connecting rod 372 and the cutting blade 373.

[0054] Reference Figure 1 , Figure 4 and Figure 5 The centrifugation assembly 38 includes a centrifuge 381, the bottom of which is fixedly connected to the right side of the bottom of the integrated box 1. The top of the centrifuge 381 has multiple placement slots 382, ​​and each placement slot 382 has a placement tube 383 slidably connected inside. The top of the outer wall of each placement tube 383 has a funnel 384 slidably connected. The solid phase extraction assembly 39 includes a mounting frame 391, the bottom of which is fixedly connected to the front end of the bottom of the integrated box 1. The top of the inner side of the mounting frame 391 has multiple solid phase extraction columns 392 fixedly connected. The bottom of the inner side of the mounting frame 391 has a collection box 393 slidably connected. The detection assembly 310 includes a gas chromatograph 3101, the rear of which is fixedly connected to the front of the integrated box 1. The top of the right front end of the gas chromatograph 3101 has a display screen 3102 fixedly connected. The bottom of the right front end of the gas chromatograph 3101 has a button 3103 fixedly connected.

[0055] Specifically, during solid-liquid separation, the pulverized raw material is poured into the placement tube 383 through the funnel 384. The funnel 384 guides the raw material to enter the placement tube 383 precisely to avoid spillage. The placement tube 383 is placed into the placement tank 382, ​​and the centrifuge 381 is started. The centrifuge 381 generates centrifugal force to separate the solid and liquid in the raw material.

[0056] After separation, the placement tube 383 is removed, and the liquid is transferred to the solid-phase extraction column 392. After being processed by the solid-phase extraction column 392, the liquid drips into the collection box 393. The collection box 393 collects the processed liquid. The solid-phase extraction column 392 is stably installed through the cooperation of the fixing frame 391 and the solid-phase extraction column 392; the processed liquid is collected through the cooperation of the collection box 393 and the fixing frame 391.

[0057] During testing, the liquid in the collection tank 393 is transferred to the gas chromatograph 3101, and the device is started by pressing the button 3103. The gas chromatograph 3101 detects the liquid, and the test results are displayed on the display screen 3102. The detection operation is controlled by the cooperation between the gas chromatograph 3101 and the button 3103; the test results are displayed by the cooperation between the gas chromatograph 3101 and the display screen 3102.

[0058] The centrifuge 381 and the placement tube 383 work together to achieve solid-liquid separation of the raw materials; the funnel 384 and the placement tube 383 work together to achieve precise transfer of the raw materials; the solid phase extraction column 392 and the collection box 393 work together to achieve liquid processing and collection; the gas chromatograph 3101, the button 3103 and the display screen 3102 work together to achieve pesticide detection and result display, so that each component can perform solid-liquid separation, extraction and detection functions respectively.

[0059] Working principle: Before testing, when the top cover 21 is closed, align the positioning groove 25 at the bottom of the top cover 21 with the positioning pin 24 at the top of the integrated box 1, so that the positioning pin 24 is inserted into the positioning groove 25 to achieve precise positioning. Press the top cover 21 to make the pipe clamp 23 engage and fix with the buckle fastener 22. When installing the discharge cylinder 31, align the limiting groove 362 at its bottom with the limiting post 361, so that the limiting post 361 is inserted into the limiting groove 362 to restrict the rotation of the discharge cylinder 31. When installing the installation mechanism 5, put the installation plate 52 on the outer wall of multiple installation blocks 51 and slide it to a suitable position. Rotate the bolt 1 53 to make its top contact the bottom of the installation block 51 for initial fixation. Then insert the clip 55 into the clip groove 54 and rotate the bolt 2 56 to fix the position of the clip 55.

[0060] During testing, open the top cover 21, operate the buckle retainer 22 to release the engagement with the pipe clamp 23, lift the top cover 21 upwards, put the tropical vegetable raw materials into the feeding cylinder 31, the rubber ring 35 seals the top of the feeding cylinder 31, start the motor 371 of the crushing component 37, the output end of the motor 371 drives the connecting rod 372 to rotate, the connecting rod 372 drives the cutting blade 373 to rotate and crush the raw materials, the baffle 374 prevents the raw materials from splashing upwards, after crushing is completed, push the sliding column 33 to slide upwards along the sliding hole 32, drive the scraper 34 to scrape the residual raw materials on the inner wall of the feeding cylinder 31 to the bottom;

[0061] The pulverized raw material is poured into the placement tube 383 through the funnel 384. The funnel 384 guides the raw material to enter precisely to avoid spillage. The placement tube 383 is placed into the placement slot 382 of the centrifuge 381. The centrifuge 381 is started, and its operation generates centrifugal force to separate the solid and liquid in the raw material. After separation, the placement tube 383 is removed, and the liquid is transferred to the solid phase extraction column 392. After being processed by the solid phase extraction column 392, the liquid drips into the collection box 393 for collection. The fixing frame 391 ensures the stable installation of the solid phase extraction column 392. The collection box 393 and the fixing frame 391 work together to complete the liquid collection.

[0062] During the detection phase, the liquid in the collection box 393 is transferred to the gas chromatograph 3101, the device is started by pressing the button 3103, and the detection results are displayed on the display screen 3102.

[0063] When cleaning is required, disassemble the mounting mechanism 5, rotate bolt 2 56 in the opposite direction to disengage it from the mounting block 51, slide the retaining strip 55 out of the retaining groove 54, rotate bolt 1 53 in the opposite direction to disengage it from the mounting block 51, and push the mounting plate 52 to slide along the outer wall of the mounting block 51 to remove it for cleaning.

[0064] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multifunctional pretreatment integrated device, comprising an integrated box (1) and a mounting bracket (4), characterized in that: The top of the integrated box (1) is provided with an opening mechanism (2), and the bottom left of the inner side of the integrated box (1) is provided with a detection mechanism (3). The detection mechanism (3) is used to detect pesticides in tropical vegetables. The top of the inner side of the mounting frame (4) is provided with an installation mechanism (5). The installation mechanism (5) is used for quick disassembly and easy cleaning. The detection mechanism (3) includes a discharge cylinder (31), the bottom of which is installed on the left side of the inner bottom of the integrated box (1). A sliding hole (32) is provided on the inner bottom of the discharge cylinder (31). A sliding column (33) is slidably connected inside the sliding hole (32). A scraper (34) is fixedly connected to the top of the outer wall of the sliding column (33). A rubber ring (35) is provided on the top of the inner side of the discharge cylinder (31). A limit component (36) is provided at the bottom of the discharge cylinder (31). A crushing component (37) is provided at the top of the discharge cylinder (31). A centrifugal component (38) is provided at the right end of the inner bottom of the integrated box (1). A solid phase extraction component (39) is provided at the front end of the inner bottom of the integrated box (1). A detection component (310) is provided on the front side of the integrated box (1).

2. The multifunctional pretreatment integrated device according to claim 1, characterized in that: The installation mechanism (5) includes multiple installation blocks (51). The tops of the multiple installation blocks (51) are fixedly connected to the inner top of the cover opening mechanism (2). The outer walls of the multiple installation blocks (51) are slidably connected to the same installation plate (52). The four corners of the bottom of the installation plate (52) are threaded with bolts (53). The outer walls of the multiple installation blocks (51) are provided with slots (54). The two front slots (54) and the two rear slots (54) are slidably connected to the same clip (55). The bottom left and right sides of the two clips (55) are threaded with bolts (56).

3. The multifunctional pretreatment integrated device according to claim 1, characterized in that: The opening mechanism (2) includes a top cover (21), the bottom of which is located on the top of the integrated box (1). The top left and right sides of the integrated box (1) are fixedly connected with buckle fasteners (22), the bottom left and right sides of the top cover (21) are fixedly connected with pipe clamps (23), the top four corners of the integrated box (1) are fixedly connected with positioning pins (24), and the bottom four corners of the top cover (21) are provided with positioning grooves (25).

4. The multifunctional pretreatment integrated device according to claim 1, characterized in that: The limiting component (36) includes two limiting posts (361), the bottom of which is fixedly connected to the bottom left of the inner side of the integrated box (1), and the bottom of the feeding cylinder (31) has two limiting grooves (362).

5. The multifunctional pretreatment integrated device according to claim 1, characterized in that: The crushing component (37) includes a motor (371), the bottom of which is fixedly connected to the bottom of the mounting frame (4), the output end of which passes through the bottom of the mounting frame (4), a connecting rod (372) is fixedly connected to the output end of the motor (371), a plurality of cutting blades (373) are fixedly connected to the bottom of the outer wall of the connecting rod (372), and a baffle (374) is fixedly connected to the top of the outer wall of the connecting rod (372).

6. The multifunctional pretreatment integrated device according to claim 1, characterized in that: The centrifugation assembly (38) includes a centrifuge (381). The bottom of the centrifuge (381) is fixedly connected to the bottom right end of the inner side of the integrated box (1). The top of the centrifuge (381) is provided with multiple placement slots (382). The interior of each of the multiple placement slots (382) is slidably connected with a placement tube (383). The top of the outer wall of each of the multiple placement tubes (383) is slidably connected with the same funnel (384).

7. The multifunctional pretreatment integrated device according to claim 1, characterized in that: The solid phase extraction assembly (39) includes a frame (391), the bottom of which is fixedly connected to the front end of the bottom of the integrated box (1), a plurality of solid phase extraction columns (392) are fixedly connected to the top of the inner side of the frame (391), and a collection box (393) is slidably connected to the bottom of the inner side of the frame (391).

8. The multifunctional pretreatment integrated device according to claim 1, characterized in that: The detection component (310) includes a gas chromatograph (3101), the rear side of which is fixedly connected to the front side of the integrated box (1), a display screen (3102) is fixedly connected to the top of the front right end of the gas chromatograph (3101), and a button (3103) is fixedly connected to the bottom of the front right end of the gas chromatograph (3101).

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