Pesticide residue detector

Abstract

The utility model discloses a pesticide residue detector, which relates to the technical field of pesticide detection and comprises a main body unit, a crushing unit arranged above the main body unit, a filtering unit arranged in the main body unit and a discharging unit arranged below the main body unit, and the crushing unit comprises a feeding hopper mounted at the top of the main body unit, two rotating shafts movably mounted in the feeding hopper, crushing rollers mounted on the side walls of the rotating shafts, a first driving motor mounted on the side wall of one rotating shaft, and a transmission part arranged between the two rotating shafts. According to the pesticide residue detector disclosed by the utility model, the crushing unit and the filtering unit are arranged, so that filtering holes are prevented from being blocked, and subsequent crops are ensured to continuously fall off.

Description

Technical Field

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

[0002] The pesticide residue detector is developed according to the national standard GB / T5009.199-2003, employing the principles of enzyme inhibition and photoelectric colorimetry. Under certain conditions, organophosphorus and carbamate pesticides inhibit the normal function of cholinesterase, and the inhibition rate is positively correlated with the pesticide concentration. Under normal circumstances, the enzyme catalyzes the hydrolysis of neurotransmitter metabolites (acetylcholine). The hydrolysis products react with a colorimetric reagent to produce a yellow substance. The change in absorbance at 412 nm over time is measured using a spectrophotometer, and the inhibition rate is calculated. The inhibition rate can be used to determine whether the sample contains residues of organophosphorus or carbamate pesticides.

[0003] According to CN212722807U, a pesticide residue detector is disclosed. Addressing the issue that existing detectors for quantitatively detecting pesticide residues in fruits and vegetables cannot achieve fully automated detection and still require manual cutting, application, reagent addition, and stirring, the present invention proposes the following solution: A fixing plate with a fixing cavity is provided on the fixing plate. Fixing grooves are formed on both inner walls of the fixing cavity. A single fixing rod is fixedly installed on the top and bottom inner walls of the fixing grooves. A single lifting plate is slidably mounted on the two fixing rods. A connecting plate is fixedly installed at the bottom of the lifting plate, and cutting teeth are fixedly installed at the bottom of the connecting plate. A first servo motor is fixedly installed at the top of the fixing plate, and two symmetrically arranged cams are fixedly sleeved on the output shaft of the first servo motor. This utility model has a simple structure, is easy to use, and facilitates the crushing and stirring of crops.

[0004] Although the above solution is simple in structure and easy to use, and can facilitate the crushing and mixing of crops, the chopped crops can easily clog the round holes on the square plate, preventing subsequent crops from falling and affecting the detection results. Therefore, we propose a pesticide residue detector. Utility Model Content

[0005] The main purpose of this utility model is to provide a pesticide residue detector. By setting up a crushing unit and a filtering unit, it solves the problem that chopped crops can easily clog the round holes on the square plate, preventing subsequent crops from falling and affecting the detection effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pesticide residue detector includes a main unit, a crushing unit disposed above the main unit, a filtering unit disposed inside the main unit, and a discharge unit disposed below the main unit.

[0008] The crushing unit includes a feed hopper installed on the top of the main unit, two rotating shafts movably installed inside the feed hopper, crushing rollers installed on the side walls of the rotating shafts, a first drive motor installed on the side wall of one of the rotating shafts, and a transmission component disposed between the two rotating shafts.

[0009] The filtration unit includes a filter element disposed inside the main unit, a drive shaft movably installed inside the main unit and located below the filter element, a cam installed on the side wall of the drive shaft, and a second drive motor installed at the input end of the drive shaft.

[0010] Preferably, the main unit includes a testing box, a support foot installed at the bottom of the testing box, and a sealing element disposed on the side of the testing box.

[0011] Preferably, the sealing element includes a feed trough formed on the side wall, a sealing door movably installed inside the feed trough of the testing box, and an opening and closing handle installed on the side wall of the sealing door.

[0012] Preferably, the transmission component includes a drive gear mounted on one end of one of the rotating shafts, and a transmission gear mounted on the other end of the rotating shaft and meshing with the drive gear.

[0013] Preferably, the filter element includes a fixed base installed on the inner side wall of the detection chamber, a connecting spring installed on the top of the fixed base, and a filter plate installed on the end of the connecting spring.

[0014] Preferably, the filter unit further includes a detector body installed on the surface of the detection box and communicating with the interior of the detection box.

[0015] Preferably, the emission unit further includes an emission pipe installed at the bottom of the detection box, and a regulating valve movably installed inside the emission pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In this invention, through the setting of a crushing unit and a filtering unit, when it is necessary to crush crops before testing, the first drive motor is started to feed the crops from the feed hopper. At this time, two crushing rollers crush the crops in the feed hopper and they fall onto the filter element. When the crushed crops are filtered, the second drive motor drives the drive shaft to rotate, and the drive shaft drives the cam to rotate synchronously. The cam drives the filter plate to vibrate up and down, thereby shaking out the crops stuck in the filter holes of the filter plate during the vibration process, thus avoiding the clogging of the filter holes and ensuring the continuous falling of subsequent crops. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0020] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0021] Figure 4 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point BB;

[0022] Figure 5 This utility model Figure 2 Schematic diagram of the cross-sectional structure at the CC section.

[0023] In the picture:

[0024] 1. Main unit; 101. Testing box; 102. Support leg; 103. Sealing element; 1031. Sealing door; 1032. Opening and closing handle;

[0025] 2. Crushing unit; 201. Feed hopper; 202. Rotating shaft; 203. Crushing roller; 204. First drive motor; 205. Transmission components; 2051. Drive gear; 2052. Transmission gear;

[0026] 3. Filter unit; 301. Filter element; 3011. Fixing base; 3012. Connecting spring; 3013. Filter plate; 302. Cam; 303. Second drive motor; 304. Drive shaft; 305. Detector body;

[0027] 4. Discharge unit; 401. Discharge pipe; 402. Regulating valve. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments. Example 1

[0029] like Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As shown, a pesticide residue detector includes a main body unit 1, a crushing unit 2 disposed above the main body unit 1, a filtering unit 3 disposed inside the main body unit 1, and an emission unit 4 disposed below the main body unit 1.

[0030] like Figure 4 As shown, the crushing unit 2 includes a feed hopper 201 installed on the top of the main unit 1, two rotating shafts 202 movably installed inside the feed hopper 201, crushing rollers 203 installed on the side walls of the rotating shafts 202, a first drive motor 204 installed on the side wall of one of the rotating shafts 202, and a transmission component 205 disposed between the two rotating shafts 202. When the first drive motor 204 drives the rotating shaft 202 to rotate, the rotating shaft 202 can drive the crushing roller 203 to rotate synchronously.

[0031] like Figure 5 As shown, the filter unit 3 includes a filter element 301 disposed inside the main body unit 1, a drive shaft 304 movably installed inside the main body unit 1 and located below the filter element 301, a cam 302 installed on the side wall of the drive shaft 304, and a second drive motor 303 installed at the input end of the drive shaft 304. When the second drive motor 303 drives the drive shaft 304 to rotate, the cam 302 can rotate synchronously with the drive shaft 304.

[0032] like Figure 1 As shown, the main unit 1 includes a detection box 101, a support foot 102 installed at the bottom of the detection box 101, and a sealing member 103 disposed on the side of the detection box 101. The support foot 102 provides support for the stable operation of the entire detection instrument.

[0033] like Figure 1 As shown, the sealing element 103 includes a feed trough formed on the side wall, a sealing door 1031 movably installed inside the feed trough of the detection box 101, and an opening and closing handle 1032 installed on the side wall of the sealing door 1031. The opening and closing handle 1032 facilitates the opening and closing of the sealing door 1031.

[0034] like Figure 4 As shown, the transmission component 205 includes a drive gear 2051 installed at the end of one of the rotating shafts 202, and a transmission gear 2052 installed at the end of the other rotating shaft 202 and meshing with the drive gear 2051. When one of the rotating shafts 202 rotates, the other rotating shaft 202 can be driven to rotate synchronously through the drive gear 2051 and the transmission gear 2052.

[0035] like Figure 1 As shown, the filter unit 3 also includes a detector body 305 installed on the surface of the detection box 101 and communicating with the inside of the detection box 101. The detector body 305 can be used to detect pesticides on crops inside the detection box 101.

[0036] like Figure 2 As shown, the discharge unit 4 also includes a discharge pipe 401 installed at the bottom of the detection box 101, and a regulating valve 402 movably installed inside the discharge pipe 401. The regulating valve 402 facilitates the rapid opening and closing of the discharge pipe 401.

[0037] When crops need to be crushed before testing, the first drive motor 204 is started to feed the crops into the feed hopper 201. At this time, the two crushing rollers 203 crush the crops in the feed hopper 201 and they fall onto the filter element 301. Example 2

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, a pesticide residue detector includes a main body unit 1, a crushing unit 2 disposed above the main body unit 1, a filtering unit 3 disposed inside the main body unit 1, and an emission unit 4 disposed below the main body unit 1.

[0039] like Figure 4 As shown, the crushing unit 2 includes a feed hopper 201 installed on the top of the main unit 1, two rotating shafts 202 movably installed inside the feed hopper 201, crushing rollers 203 installed on the side walls of the rotating shafts 202, a first drive motor 204 installed on the side wall of one of the rotating shafts 202, and a transmission component 205 disposed between the two rotating shafts 202. When the first drive motor 204 drives the rotating shaft 202 to rotate, the rotating shaft 202 can drive the crushing roller 203 to rotate synchronously.

[0040] like Figure 5 As shown, the filter unit 3 includes a filter element 301 disposed inside the main body unit 1, a drive shaft 304 movably installed inside the main body unit 1 and located below the filter element 301, a cam 302 installed on the side wall of the drive shaft 304, and a second drive motor 303 installed at the input end of the drive shaft 304. When the second drive motor 303 drives the drive shaft 304 to rotate, the cam 302 can rotate synchronously with the drive shaft 304.

[0041] like Figure 1As shown, the main unit 1 includes a detection box 101, a support foot 102 installed at the bottom of the detection box 101, and a sealing member 103 disposed on the side of the detection box 101. The support foot 102 provides support for the stable operation of the entire detection instrument.

[0042] like Figure 1 As shown, the sealing element 103 includes a feed trough formed on the side wall, a sealing door 1031 movably installed inside the feed trough of the detection box 101, and an opening and closing handle 1032 installed on the side wall of the sealing door 1031. The opening and closing handle 1032 facilitates the opening and closing of the sealing door 1031.

[0043] like Figure 4 As shown, the transmission component 205 includes a drive gear 2051 installed at the end of one of the rotating shafts 202, and a transmission gear 2052 installed at the end of the other rotating shaft 202 and meshing with the drive gear 2051. When one of the rotating shafts 202 rotates, the other rotating shaft 202 can be driven to rotate synchronously through the drive gear 2051 and the transmission gear 2052.

[0044] like Figure 3 As shown, the filter element 301 includes a fixed seat 3011 installed on the inner side wall of the detection box 101, a connecting spring 3012 installed on the top of the fixed seat 3011, and a filter plate 3013 installed on the end of the connecting spring 3012. The connection spring 3012 makes the up-and-down vibration of the filter plate 3013 more stable.

[0045] like Figure 1 As shown, the filter unit 3 also includes a detector body 305 installed on the surface of the detection box 101 and communicating with the inside of the detection box 101. The detector body 305 can be used to detect pesticides on crops inside the detection box 101.

[0046] like Figure 2 As shown, the discharge unit 4 also includes a discharge pipe 401 installed at the bottom of the detection box 101, and a regulating valve 402 movably installed inside the discharge pipe 401. The regulating valve 402 facilitates the rapid opening and closing of the discharge pipe 401.

[0047] When the crushed crops are filtered, the second drive motor 303 drives the drive shaft 304 to rotate. The drive shaft 304 drives the cam 302 to rotate synchronously. The cam 302 drives the filter plate 3013 to vibrate up and down. During the vibration, the crops stuck in the filter holes of the filter plate 3013 are shaken out, thus avoiding the clogging of the filter holes and ensuring the continuous falling of subsequent crops.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pesticide residue detector, comprising a main body unit (1), characterized in that, It also includes a crushing unit (2) disposed above the main body unit (1), a filtering unit (3) disposed inside the main body unit (1), and a discharge unit (4) disposed below the main body unit (1). The crushing unit (2) includes a feed hopper (201) installed on the top of the main unit (1), two rotating shafts (202) movably installed inside the feed hopper (201), a crushing roller (203) installed on the side wall of the rotating shaft (202), a first drive motor (204) installed on the side wall of one of the rotating shafts (202), and a transmission component (205) disposed between the two rotating shafts (202). The filter unit (3) includes a filter element (301) disposed inside the main body unit (1), a drive shaft (304) movably installed inside the main body unit (1) and located below the filter element (301), a cam (302) installed on the side wall of the drive shaft (304), and a second drive motor (303) installed at the input end of the drive shaft (304).

2. The pesticide residue detector according to claim 1, characterized in that: The main unit (1) includes a detection box (101), a support foot (102) installed at the bottom of the detection box (101), and a sealing member (103) disposed on the side of the detection box (101).

3. The pesticide residue detector according to claim 2, characterized in that: The sealing element (103) includes a feed trough formed on the side wall, a sealing door (1031) movably installed inside the feed trough of the detection box (101), and an opening and closing handle (1032) installed on the side wall of the sealing door (1031).

4. The pesticide residue detector according to claim 3, characterized in that: The transmission component (205) includes a drive gear (2051) mounted on the end of one of the rotating shafts (202) and a transmission gear (2052) mounted on the end of the other rotating shaft (202) and meshing with the drive gear (2051).

5. The pesticide residue detector according to claim 1, characterized in that: The filter element (301) includes a fixed seat (3011) installed on the inner side wall of the detection box (101), a connecting spring (3012) installed on the top of the fixed seat (3011), and a filter plate (3013) installed on the end of the connecting spring (3012).

6. The pesticide residue detector according to claim 1, characterized in that: The filter unit (3) also includes a detector body (305) installed on the surface of the detection box (101) and communicating with the inside of the detection box (101).

7. The pesticide residue detector according to claim 2, characterized in that: The emission unit (4) also includes an emission pipe (401) installed at the bottom of the detection box (101) and a regulating valve (402) movably installed inside the emission pipe (401).

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