Pesticide residue sample extraction and purification device

Abstract

The utility model provides a pesticide residue sample extraction and purification device, and relates to the technical field of pesticide residue sample extraction and purification. The extraction tank is fixedly connected to the surface of the supporting frame and is used for assisting in extracting pesticide residue samples placed in the extraction tank; the stirrer is mounted on the surface of the extraction tank and is used for extracting and stirring the pesticide residue sample in the extraction tank; the purifier is mounted on the surface of the extraction tank and is used for purifying and discharging the extracted pesticide residue sample; and the feeding device is arranged on the surface of the extraction tank and is used for helping the pesticide residue samples to be quickly fed. Through the arrangement of the feeding device, pesticide residue samples can be rapidly fed, a large number of pesticide residue samples can be placed at the same time, then the multiple pesticide residue samples are detected, the detection effect on the pesticide content in the pesticide residue samples is improved, use of the extraction and purification device is greatly facilitated, and the extraction and purification device is suitable for large-scale popularization and application. And an accurate detection result can be quickly obtained.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pesticide residue sample extraction purification, specifically relates to a pesticide residue sample extraction purification device. BACKGROUND

[0002] Pesticide refers to the chemical agent used for preventing and treating pests and regulating plant growth in agriculture, which is used in agricultural production, environment and family health pest control, epidemic prevention, industrial product mildew and insect prevention, etc., in order to use crops, the crops need to be extracted and detected.

[0003] A pesticide residue extraction device is disclosed in a Chinese patent with publication number CN219941832U, which aims to solve the problem that the existing extraction tank directly discharges the layered liquid, causing the discharged liquid to contain precipitates, thus easily affecting the collection effect of the device after extracting pesticide residues. The device includes an extraction tank with a top plate fixed to the top end of the extraction tank. The utility model is characterized by the mutual installation and cooperation of the concave column and the filter plate, which allows the filter plate outer wall to be connected with the concave column inner wall through clamping connection, facilitating the filtration of the liquid extracted and layered in the extraction tank, and preventing the precipitates in the liquid from being discharged with the liquid. The mutual installation and cooperation of the fixing plate and the connecting block allow the connecting block outer wall to be separated from the connecting hole inner wall through sliding, thereby facilitating the replacement of the filter plate clamped and installed on the concave column inner wall, and preventing the surface filtration performance of the filter plate from being reduced due to repeated use.

[0004] In the prior art, when detecting pesticide residue samples, the samples are loaded through the surface opening. This method has a slow loading speed, and the loaded crops cannot be quickly placed in large quantities, which may cause blockage. When dealing with large crops, only small sections can be extracted and slowly placed, greatly reducing the extraction and purification efficiency. SUMMARY

[0005] The pesticide residue sample extraction and purification device provided by the utility model solves the problems raised in the background art.

[0006] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0007] The embodiment of the utility model provides a pesticide residue sample extraction and purification device, which comprises:

[0008] A support frame;

[0009] An extraction tank is fixedly connected to the surface of the support frame and is used to help extract the pesticide residue samples placed inside;

[0010] A stirrer is installed on the surface of the extraction tank and is used to extract and stir the pesticide residue samples inside the extraction tank;

[0011] The purifier is installed on the surface of the extraction tank and used for purifying and discharging the pesticide residue sample after extraction.

[0012] The feeding device is arranged on the surface of the extraction tank and used for assisting the pesticide residue sample to be quickly fed.

[0013] The collecting device is arranged on the surface of the purifier and used for completely collecting the pesticide residue sample after purification.

[0014] Further, the feeding device comprises a feeding frame fixedly connected with the surface of the extraction tank, a plurality of scrapers fixedly connected with the inner wall of the feeding frame, a push block slidingly connected with the inner wall of the feeding frame, a push rod slidingly connected with the inner wall of the feeding frame, one end of the push rod slidingly connected with the push block, a spring sleeved with the surface of the push rod, both ends of the spring fixedly connected with the push rod and the feeding frame, and two round rods fixedly connected with the surface of the feeding frame, the surfaces of the two round rods slidingly connected with cover plates, and the cover plates matched in size with the inner wall of the feeding frame.

[0015] Through the above technical solution, the cover plate is pulled up, and then more pesticide residue samples are put into the inner wall of the feeding frame. At this time, the pesticide residue samples are pushed to the direction of the scraper through the push rod and the push block, and the pesticide residue samples can be cut and enter the inside of the extraction tank in cooperation with the scraper. The extraction effect of the pesticide residue sample can be increased in cooperation with the stirrer, and a large amount of pesticide residue samples can be detected at the same time, thereby further improving the accuracy of detection.

[0016] Further, the surface of the push rod is fixedly connected with a protection frame in a circular ring shape.

[0017] Through the above technical solution, the protection frame can prevent the fingers of the operator from being pinched when the fingers come into contact with the spring.

[0018] Further, one end of each of the two round rods away from the feeding frame is fixedly connected with a magnet, and the surface of the cover plate is fixedly connected with two iron blocks.

[0019] Through the above technical solution, when the cover plate slides upward, the magnet can be adsorbed with the iron block together, so as to simply limit the cover plate.

[0020] Further, the surface of the cover plate is fixedly connected with an observation plate made of acrylic material.

[0021] Through the above technical solution, the operator can observe the inside of the feeding frame through the observation plate, so as to prevent some pesticide residue samples from not entering the inside of the extraction tank well.

[0022] Further, the collecting device comprises a guide frame fixedly connected with the surface of the purifier, the guide frame is trapezoidal, an adjusting plate is slidably connected with the surface of the guide frame, a slide rail is fixedly connected with the surface of the support frame, and a collecting frame is slidably connected with the surface of the slide rail.

[0023] Through the above technical scheme, the collecting frame is placed through the slide rail, and the structure of the guide frame can collect all the pesticide residue sample liquids after purification into the collecting frame, and the adjusting plate can pull to adjust the flow rate.

[0024] Further, a sealing strip is glued to the surface of the guide frame, the sealing strip is "mouth"-shaped, and the adjusting plate is slidably connected with the sealing strip.

[0025] Through the above technical scheme, the sealing strip can scrape off the pesticide residue sample liquids attached to the surface of the adjusting plate to prevent leakage to the outside.

[0026] Further, a placing frame is fixedly connected with the surface of the support frame, and an activated carbon plate is slidably connected with the inner wall of the placing frame.

[0027] Through the above technical scheme, the harmful gas is emitted when the pesticide residue sample liquids are collected in the collecting frame, and the activated carbon plate can block and absorb the harmful gas, and the slide plate can be sealed at the same time when the collecting frame is taken out after collection, so that the diffusion of toxic gas is prevented.

[0028] The above scheme of the utility model has at least the following beneficial effects:

[0029] 1. The utility model discloses a feeding device, which can help the pesticide residue sample to be quickly fed, and a large amount of pesticide residue samples can be put in at the same time, so that multiple pesticide residue samples can be detected, the detection effect of the pesticide content in the pesticide residue sample is improved, the use of the extraction and purification device is greatly facilitated, and accurate detection results can be quickly obtained.

[0030] 2. The utility model discloses a collecting device, which can collect all the pesticide residue samples after purification of the purifier together, so that the pesticide residue samples are not mixed with the detection samples next time, the detection results of the detection samples next time are not affected, and the accuracy of the detection of the pesticide residue samples each time is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a whole structure schematic view of the utility model;

[0032] Figure 2 It is another angle structure schematic view of the utility model Figure 1 .

[0033] Figure 3 is a partial structure schematic view of the utility model Figure 1 ;

[0034] Figure 4 is a partial structure schematic view of the utility model Figure 2 .

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] 1, support frame; 2, extraction tank; 3, stirrer; 4, purifier; 5, feeding device; 501, feeding frame; 502, push block; 503, push rod; 504, spring; 505, protection frame; 506, round rod; 507, iron block; 508, magnet; 509, cover plate; 510, observation plate; 511, scraper; 6, collecting device; 61, guide frame; 62, adjusting plate; 63, sealing strip; 64, slide rail; 65, collecting frame; 66, sliding plate; 67, placing rack; 68, activated carbon plate. DETAILED DESCRIPTION

[0037] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are illustrated, it is to be understood that the present application is not limited to the embodiments described herein, but can be practiced with variations that will be apparent to those skilled in the art. Rather, the purpose of the embodiments is to convey the substance of the present application to those skilled in the art with a sufficient degree of description. Thus, the present application should be understood to include any alterations or modifications to the

[0038] As shown in Figures 1 to 4 , the embodiment of the utility model provides a kind of agricultural residue sample extraction and purification device, comprising:

[0039] support frame 1;Extraction tank 2, fixedly connected on the surface of support frame 1, for helping the agricultural residue sample placed in interior extraction;Stirrer 3, installation is in the surface of extraction tank 2, for the extraction stirring of agricultural residue sample in the interior of extraction tank 2;Purifier 4, installation is in the surface of extraction tank 2, for the purification and discharge of agricultural residue sample after extraction;Feeding device 5, it is arranged on the surface of extraction tank 2, for helping the quick feeding of agricultural residue sample;Collecting device 6, it is arranged on the surface of purifier 4, for the complete collection of agricultural residue sample after purification.

[0040] As shown in Figures 1 to 3As shown, the feeding device 5 comprises a feeding frame 501 fixedly connected with the surface of the extraction tank 2, the inner wall of the feeding frame 501 is fixedly connected with a plurality of scrapers 511, the inner wall of the feeding frame 501 is slidingly connected with a push block 502, the inner wall of the feeding frame 501 is slidingly connected with a push rod 503, one end of the push rod 503 is slidingly connected with the push block 502, the surface of the push rod 503 is sleeved with a spring 504, both ends of the spring 504 are fixedly connected with the push rod 503 and the feeding frame 501 respectively, the surface of the feeding frame 501 is fixedly connected with two round rods 506, the surface of each of the two round rods 506 is slidingly connected with a cover plate 509, the cover plate 509 is matched in size with the inner wall of the feeding frame 501, the cover plate 509 is pulled up, then more pesticide residue samples are put into the inner wall of the feeding frame 501, at this time, the pesticide residue samples are pushed to the direction of the scraper 511 through the push rod 503 and the push block 502, and the pesticide residue samples can be cut and enter the inside of the extraction tank 2 in cooperation with the scraper 511, the extraction effect on the pesticide residue samples can be increased in cooperation with the stirrer 3, a large amount of pesticide residue samples can be detected at the same time, and the detection accuracy is further improved, the surface of the push rod 503 is fixedly connected with a protection frame 505, the protection frame 505 is in the form of a ring, the protection frame 505 can prevent the fingers of the operator from being pinched when being in contact with the spring 504, one end of each of the two round rods 506 away from the feeding frame 501 is fixedly connected with a magnet 508, the surface of the cover plate 509 is fixedly connected with two iron blocks 507, when the cover plate 509 slides upward, the magnet 508 can be adsorbed with the iron block 507 together, so that the cover plate 509 is simply limited, the surface of the cover plate 509 is fixedly connected with an observation plate 510, the observation plate 510 is made of acrylic material, the operator can observe the inside of the feeding frame 501 through the observation plate 510, so that some pesticide residue samples can be prevented from not entering the inside of the extraction tank 2 well.

[0041] In the embodiment (working principle) of the utility model, the cover plate 509 is slid upward, after being slid to a proper position, the iron block 507 is adsorbed with the magnet 508 together, at this time, the operator can put appropriate pesticide residue samples into the inside of the feeding frame 501, then press the cover plate 509, so that the cover plate 509 is attached with the feeding frame 501, the push rod 503 and the push block 502 are further pushed to the direction of the scraper 511 by the operator, so that the pesticide residue samples on the surface of the push block 502 are broken and cut, then enter the inside of the extraction tank 2 in cooperation with the stirrer 3 to achieve the extraction effect, then the push rod 503 is released, the push rod 503 is driven to reset by the spring 504, so that the push rod 503 is conveniently pushed again for use, and the operator can observe the inside of the feeding frame 501 through the observation plate 510, so that the pesticide residue samples can be prevented from being left.

[0042] As Figure 2 and Figure 4As shown, the collecting device 6 includes a guide frame 61 fixedly connected with the surface of the purifier 4, the guide frame 61 is trapezoidal, a regulating plate 62 is slidably connected with the surface of the guide frame 61, a supporting frame 1 is fixedly connected with a slide rail 64, a collecting frame 65 is slidably connected with the surface of the slide rail 64, a slide plate 66 is slidably connected with the surface of the collecting frame 65, the collecting frame 65 is placed through the slide rail 64, at this time, the structure design of the guide frame 61 can collect all the pesticide residue sample liquid after purification into the inside of the collecting frame 65, and the regulating plate 62 can pull to regulate the flow rate, the surface of the guide frame 61 is glued with a sealing strip 63, the sealing strip 63 is in the shape of "mouth", the regulating plate 62 is slidably connected with the sealing strip 63, the sealing strip 63 can scrape off and block the pesticide residue sample liquid attached to the surface of the regulating plate 62, so that it cannot leak to the outside, the surface of the supporting frame 1 is fixedly connected with a placing frame 67, the inner wall of the placing frame 67 is slidably connected with an activated carbon plate 68, when the pesticide residue sample liquid is collected in the inside of the collecting frame 65, harmful gases will be emitted, at this time, the harmful gases will be blocked and absorbed by the activated carbon plate 68, and when the collecting frame 65 is taken out after the collection is completed, the slide plate 66 can be sealed at the same time, so that the diffusion of toxic gases can be prevented.

[0043] In the embodiment of the utility model, the activated carbon plate 68 is slidably installed in the inside of the placing frame 67, then the collecting frame 65 is butted with the slide rail 64, further, the collecting frame 65 is slid to the direction of the supporting frame 1, when sliding to the position of the guide frame 61, the guide frame 61 will push away the slide plate 66, at this time, the upper surface of the collecting frame 65 is opened, then the operator can pull the regulating plate 62 outward to collect the pesticide residue sample liquid in the inside of the purifier 4, the distance of the pull of the regulating plate 62 can control the flow rate, and the toxic gases emitted by the pesticide residue sample will be adsorbed and collected by the activated carbon plate 68, so that leakage is not easy to occur, after the collection is completed, the collecting frame 65 is slid outward, at this time, the slide plate 66 can cover the surface of the collecting frame 65, so that the toxic gases are also not easy to leak, and the collection effect of the pesticide residue sample is improved.

[0044] The above is the preferred embodiment of the utility model, it should be pointed out that for ordinary technical personnel in the technical field, on the premise of not departing from the principle of the utility model, a number of improvements and refinements can be made, these improvements and refinements should also be regarded as the protection scope of the utility model.

Claims

1. A pesticide residue sample extraction and purification device, characterized in that, include: Support frame (1); Extraction vessel (2) is fixedly connected to the surface of support frame (1) to help extract pesticide residue samples placed inside; A stirrer (3) is installed on the surface of the extraction tank (2) for stirring the pesticide residue sample inside the extraction tank (2). Purifier (4) is installed on the surface of extraction tank (2) and is used to purify and discharge pesticide residue samples after extraction; The feeding device (5) is set on the surface of the extraction tank (2) to help the pesticide residue sample be fed quickly; A collection device (6) is installed on the surface of the purifier (4) for completely collecting pesticide residue samples after purification.

2. The pesticide residue sample extraction and purification device according to claim 1, characterized in that, The feeding device (5) includes a feeding frame (501), which is fixedly connected to the surface of the extraction tank (2). Several scrapers (511) are fixedly connected to the inner wall of the feeding frame (501). A push block (502) is slidably connected to the inner wall of the feeding frame (501). A push rod (503) is slidably connected to the inner wall of the feeding frame (501). One end of the push rod (503) is slidably connected to the push block (502). A spring (504) is sleeved on the surface of the push rod (503). Both ends of the spring (504) are fixedly connected to the push rod (503) and the feeding frame (501) respectively. Two round rods (506) are fixedly connected to the surface of the feeding frame (501). A cover plate (509) is slidably connected to the surface of both round rods (506). The cover plate (509) is adapted to the inner wall size of the feeding frame (501).

3. The pesticide residue sample extraction and purification device according to claim 2, characterized in that, A protective frame (505) is fixedly connected to the surface of the push rod (503), and the protective frame (505) is in the shape of a ring.

4. The pesticide residue sample extraction and purification device according to claim 2, characterized in that, Magnets (508) are fixedly connected to one end of the two round rods (506) away from the feeding frame (501), and two iron blocks (507) are fixedly connected to the surface of the cover plate (509).

5. The pesticide residue sample extraction and purification device according to claim 2, characterized in that, An observation plate (510) is fixedly connected to the surface of the cover plate (509), and the observation plate (510) is made of acrylic material.

6. The pesticide residue sample extraction and purification device according to claim 1, characterized in that, The collection device (6) includes a guide frame (61), which is fixedly connected to the surface of the purifier (4). The guide frame (61) is trapezoidal, and an adjustment plate (62) is slidably connected to the surface of the guide frame (61). A slide rail (64) is fixedly connected to the surface of the support frame (1), and a collection frame (65) is slidably connected to the surface of the slide rail (64). A sliding plate (66) is slidably connected to the surface of the collection frame (65).

7. The pesticide residue sample extraction and purification device according to claim 6, characterized in that, A sealing strip (63) is glued to the surface of the guide frame (61). The sealing strip (63) is in the shape of an "U". The adjusting plate (62) is slidably connected to the sealing strip (63).

8. The pesticide residue sample extraction and purification device according to claim 1, characterized in that, The surface of the support frame (1) is fixedly connected to a placement rack (67), and an activated carbon plate (68) is slidably connected to the inner wall of the placement rack (67).

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