Pretreatment device for pesticide residue detection sample preparation

Abstract

The invention discloses a pretreatment device for pesticide residue detection sample preparation, belongs to the technical field of pesticide residue detection, and provides the following scheme that the pretreatment device comprises a cleaning treatment mechanism, a pretreatment mechanism is arranged on the cleaning treatment mechanism, the cleaning treatment mechanism comprises a treatment box, and a drying assembly is arranged on the front side of the treatment box; a cleaning assembly and a limiting assembly are arranged in the treatment box, and a columnar cleaning head of the cleaning assembly is mounted on a sealing net cover of the limiting assembly; the driving assembly drives the vibration type smashing assembly to rotate, after the gear and the upper tooth section are in transmission, the vibration type smashing assembly conducts vibration smashing on a sample in the sample barrel, the sample barrel rotates along with the vibration type smashing assembly, the sample can be smashed in a rolling mode, the smashing effect is improved, and the situation that pesticide extraction is insufficient and detection accuracy is affected due to uneven smashing is avoided; and the intelligent sensor is combined to accurately control the amount of the sample, so that the consistency of the pretreated sample is further guaranteed.

Description

Technical Field

[0001] This invention relates to the field of pesticide residue detection technology, and in particular to a sample preparation and pretreatment device for pesticide residue detection. Background Technology

[0002] In pesticide residue detection, it is often necessary to first use intelligent sensors to sample and weigh the samples, and then pre-process the samples. Sample crushing pre-processing is a critical step, as its effectiveness directly affects the efficiency of subsequent extraction and purification, as well as the accuracy of the detection results. If the sample is not crushed evenly, it is easy to lead to insufficient extraction of pesticide residues. Currently, existing technologies often use crushing equipment for sample pre-processing. However, a single crushing device generally has only one crushing chamber. After one sample is crushed, in order to avoid contaminating the next sample, the crushing chamber and crushing blades generally need to be cleaned and dried. This process takes a long time, which is very inconvenient when dealing with the pre-processing of large batches of samples, requiring a long wait before the next batch can be processed, thus restricting the efficiency of batch detection. Moreover, the crushing process of common crushing equipment often relies on rotation in one direction, making it difficult to achieve uniform crushing of the sample. Some blocky samples are not fully crushed, affecting the accuracy of subsequent detection.

[0003] To address the above problems, this invention proposes a sample preparation and pretreatment device for pesticide residue detection. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies that often use pulverizing equipment for sample pretreatment. However, a single pulverizing device typically has only one pulverizing chamber, which is inconvenient when pretreating large batches of samples, requiring long waiting times before the next batch can be processed, thus limiting the efficiency of batch testing. Furthermore, the pulverizing process of common pulverizing equipment often relies on rotation in one direction, making it difficult to achieve uniform sample pulverization. Some blocky samples are not fully broken, affecting the accuracy of subsequent testing. Therefore, this invention proposes a sample preparation and pretreatment device for pesticide residue detection.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A sample preparation and pretreatment device for pesticide residue detection includes a cleaning and treatment mechanism, wherein a pretreatment mechanism is provided on the cleaning and treatment mechanism. The cleaning and processing mechanism includes a processing box, a drying component is provided on the front side of the processing box, a cleaning component and a limiting component are provided in the processing box, and the columnar cleaning head of the cleaning component is installed on the sealing mesh cover of the limiting component. The pretreatment mechanism includes a drive assembly, which is located above the processing box. Multiple vibratory crushing components are connected to the drive assembly, and a ring is also connected to the drive assembly. An upper toothed section and a lower toothed section are installed on the ring. The drive assembly drives the vibratory crushing components to rotate, so that the gears of the vibratory crushing components can mesh with the upper toothed section and the lower toothed section in sequence.

[0006] Preferably, a mounting base is fixedly connected to the processing box, and a smart sensor is installed on the mounting base.

[0007] Preferably, the treatment box is equipped with an inclined plate that divides the treatment box into a clean water chamber and a wastewater chamber, and valves are provided on both sides of the treatment box.

[0008] Preferably, the cleaning assembly includes a cleaning pump, which is disposed in the processing tank. The cleaning pump is connected to a solenoid valve through a pipe and is connected to two matrix cleaning heads through an inclined plate. The matrix cleaning heads are installed on the two side walls of the processing tank. The solenoid valve is connected to the columnar cleaning head via a hose.

[0009] Preferably, the limiting component includes a pressure sensing component, and the inner ring of the pressure sensing component is provided with a sealing mesh cover, which is used to limit the sample cylinder.

[0010] Preferably, a plurality of telescopic rods and a plurality of first springs are installed below the pressure sensing component, and the bottom ends of the telescopic rods and the first springs are fixedly connected to the bottom wall of the processing box.

[0011] Preferably, the drying assembly includes a mounting base, which is fixedly connected to the processing box. A sealing end cover and a drying device are mounted on the mounting base. A drying head is mounted on the sealing end cover and is connected to the drying device.

[0012] Preferably, the drive assembly includes a motor and two fixed plates. The motor is mounted on the fixed plates via a support. The output shaft of the motor is fixedly connected to a rotating shaft. A rotating frame is fixedly connected to the rotating shaft. The rotating shaft is rotatably mounted on the two fixed plates via bearings. The two fixed plates are fixedly connected to the processing box. A fixed rod is fixedly connected to the fixed plate, and the fixed rod is fixedly connected to a ring.

[0013] Preferably, the vibratory crushing assembly includes two side plates, which are fixedly connected to the rotating frame. Sealing clips are fixedly connected to the two side plates, and the sealing clips engage with the sample cylinder.

[0014] Preferably, a ball bearing plate is fixedly connected between the two side plates, a ball bearing disc overlaps one side of the ball bearing plate, a polygonal shaft is fixedly connected to one side of the ball bearing disc, and a crushing shaft is fixedly connected to one end of the polygonal shaft. The polygonal shaft is slidably connected in the polygonal sleeve, the polygonal sleeve is equipped with gears, the polygonal sleeve is rotatably mounted on the sealing head via bearings, and a second spring is fixedly connected between the polygonal sleeve and the ball bearing disc.

[0015] Compared with the prior art, the present invention provides a sample preparation and pretreatment device for pesticide residue detection, which has the following beneficial effects: 1. This pesticide residue detection sample preparation pretreatment device drives a vibratory pulverizing component to rotate via a drive assembly. After the gear and upper tooth section are driven, the vibratory pulverizing component vibrates and pulverizes the sample in the sample tube. The sample tube rotates along with the vibratory pulverizing component, which can make the sample roll and pulverize, improve the pulverization effect, avoid uneven pulverization leading to insufficient pesticide extraction and affecting the accuracy of detection, and, combined with intelligent sensors, accurately control the sample volume, further ensuring the consistency of the pretreated sample.

[0016] 2. This pesticide residue detection sample preparation and pretreatment device, after the sample is crushed, allows the cleaning component to clean the crushing shaft through the matrix cleaning head. The gear and lower tooth segment drive the rotation cleaning, improving the cleaning effect. At the same time, the removed sample tube is inverted and locked onto the limiting component. At this time, the solenoid valve opens, and the sample tube can be directly cleaned through the columnar cleaning head. After cleaning, the sample tube is further dried by the drying component, thus meeting the needs of batch detection and significantly shortening the batch pretreatment cycle.

[0017] 3. This pesticide residue detection sample preparation and pretreatment device drives a vibratory crushing component and an upper toothed section transmission via a drive component, thereby completing the vibration crushing of the sample. After crushing, the sample tube is removed. At this time, the vibratory crushing component and the lower toothed section transmission allow the cleaning component to directly and thoroughly clean the rotating crushing shaft. After cleaning, the sample tube can be further drained quickly by vibration. The sample tube is inverted and clamped onto the limiting component. At this time, the solenoid valve opens to perform the cleaning operation, achieving a double cleaning effect. After cleaning, the sample tube can be directly dried by the drying component. The combination of these two methods not only solves the problems of low batch efficiency and uneven crushing in traditional devices, but also provides efficient and accurate detection guarantee for pesticide residues. Attached Figure Description

[0018] Figure 1 This is a perspective view of a sample preparation and pretreatment device for pesticide residue detection proposed in this invention; Figure 2 This is a rear-view perspective view of a pesticide residue detection sample preparation and pretreatment device proposed in this invention; Figure 3 This is a perspective view of the connection between the drying component and the treatment box of a pesticide residue detection sample preparation and pretreatment device proposed in this invention; Figure 4This is a cross-sectional perspective view of a sample preparation and pretreatment device for pesticide residue detection proposed in this invention; Figure 5 This is a cross-sectional perspective view of the limiting component of a pesticide residue detection sample preparation and pretreatment device proposed in this invention. Figure 6 This is a cross-sectional perspective view of the drying component of a pesticide residue detection sample preparation and pretreatment device proposed in this invention; Figure 7 This is a perspective view of the pretreatment mechanism of a pesticide residue detection sample preparation pretreatment device proposed in this invention; Figure 8 This is a perspective view of the drive component of a pesticide residue detection sample preparation and pretreatment device proposed in this invention; Figure 9 This is a three-dimensional cross-sectional view of the processing box of a pesticide residue detection sample preparation and pretreatment device proposed in this invention; Figure 10 This is a cross-sectional perspective view of the vibratory crushing component of a pesticide residue detection sample preparation and pretreatment device proposed in this invention.

[0019] In the diagram: 100, Cleaning mechanism; 101, Processing box; 102, Drying assembly; 1021, Drying equipment; 1022, Mounting base; 1023, Sealing end cap; 1024, Drying head; 103, Inclined plate; 104, Fixed base; 105, Intelligent sensor; 106, Cleaning assembly; 1061, Cleaning pump; 1062, Matrix cleaning head; 1063, Solenoid valve; 1064, Columnar cleaning head; 107, Limiting assembly; 1071, Telescopic rod; 1072, First spring; 1073, Pressure sensing assembly; 1074, Sealing... 200. Sealing cover; 201. Pre-treatment mechanism; 201. Drive assembly; 2011. Fixing plate; 2012. Motor; 2013. Rotating shaft; 2014. Rotating frame; 2015. Fixing rod; 202. Sample cylinder; 203. Upper toothed section; 204. Ring; 205. Vibrating crushing assembly; 2051. Side plate; 2052. Ball bearing plate; 2053. Gear; 2054. Polygonal shaft; 2055. Second spring; 2056. Ball bearing disc; 2057. Crushing shaft; 2058. Sealing clip; 2059. Polygonal sleeve; 206. Lower toothed section. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Example 1: Refer to Figures 1-4 , Figures 7-8 and Figure 10 A pesticide residue detection sample preparation pretreatment device includes a cleaning treatment mechanism 100, on which a pretreatment mechanism 200 is provided; The cleaning and processing mechanism 100 includes a processing box 101, a fixed base 104 is fixedly connected to the processing box 101, and an intelligent sensor 105 is installed on the fixed base 104. The intelligent sensor 105 can accurately weigh and control the sample. A drying component 102 is provided on the front side of the processing box 101. A cleaning component 106 and a limiting component 107 are provided in the processing box 101. The columnar cleaning head 1064 of the cleaning component 106 is installed on the sealing mesh cover 1074 of the limiting component 107. The pretreatment mechanism 200 includes a drive assembly 201, which includes a motor 2012 and two fixed plates 2011. The motor 2012 is mounted on the fixed plates 2011 via supports. The output shaft of the motor 2012 is fixedly connected to a rotating shaft 2013, and a rotating frame 2014 is fixedly connected to the rotating shaft 2013. The motor 2012 drives the rotating shaft 2013 to rotate, which in turn drives the vibratory crushing assembly 205 to rotate at a uniform speed via the rotating frame 2014. This allows the sample cylinder 202 to be sequentially crushed. The samples are sequentially clamped onto the sealing head 2058, and can then be pulverized in batches by rotation. The rotating shaft 2013 is rotatably mounted on two fixed plates 2011 via bearings. The rotating shaft 2013 can rotate stably via the bearings, so that the rotating frame 2014 can maintain stable rotation. The two fixed plates 2011 are fixedly connected to the processing box 101. A fixed rod 2015 is fixedly connected to the fixed plate 2011. The fixed rod 2015 is fixedly connected to the ring 204. The drive assembly 201 is located above the processing box 101. Multiple vibratory crushing components 205 are connected to the drive assembly 201. Each vibratory crushing component 205 includes two side plates 2051, which are fixedly connected to the rotating frame 2014. Sealing heads 2058 are fixedly connected to the two side plates 2051, engaging with the sample cylinder 202. This sealing engagement ensures the stability of the sample cylinder 202 and prevents sample leakage. A ball bearing plate 2052 is fixedly connected between the two side plates 2051. A ball bearing plate 2052 has a ball bearing disk 2056 attached to one side. A polygonal shaft 2054 is fixedly connected to one side of the ball bearing disk 2056. A crushing shaft 2057 is fixedly connected to one end of the polygonal shaft 2054. The polygonal shaft 2054 is slidably connected in a polygonal sleeve 2059. Through the polygonal structure of the polygonal shaft 2054 and the polygonal sleeve 2059, the rotation of the polygonal sleeve 2059 can drive the polygonal shaft 2054 to rotate, thereby driving the crushing shaft 2057 to crush the sample. The polygonal shaft 2054 can slide in the polygonal sleeve 2059, thus smoothly... For vibratory crushing operations, a gear 2053 is installed on a polygonal sleeve 2059. The polygonal sleeve 2059 is rotatably mounted on a sealing clamp 2058 via a bearing. The polygonal sleeve 2059 can maintain stable rotation via the bearing, thereby ensuring stable rotation of the polygonal shaft 2054 and the crushing shaft 2057. A second spring 2055 is fixedly connected between the polygonal sleeve 2059 and the ball bearing disc 2056. A ring 204 is also connected to the drive assembly 201. An upper toothed section 203 and a lower toothed section 206 are installed on the ring 204. The gear 2053 meshes with the upper toothed section 203 to transmit power. The drive assembly 201 drives the vibratory crushing assembly 205 to rotate, thereby driving the polygonal shaft 2054 and the crushing shaft 2057 to rotate. When the gear 2053 drives the lower tooth section 206, the crushing shaft 2057 can also rotate, allowing the crushing shaft 2057 to perform rotational cleaning operations. There is a gap between the upper tooth section 203 and the lower tooth section 206, which facilitates the operation of picking up and putting down the sample cylinder 202. The drive assembly 201 drives the vibratory crushing assembly 205 to rotate, so that the gear 2053 of the vibratory crushing assembly 205 can mesh with the upper tooth section 203 and the lower tooth section 206 in sequence.

[0023] In this embodiment: the motor 2012 drives the rotating shaft 2013 and the rotating frame 2014 to rotate. The rotating frame 2014 drives the vibratory crushing component 205 to rotate, causing the gear 2053 to drive the upper tooth section 203. The gear 2053 drives the polygonal sleeve 2059 and the polygonal shaft 2054 to rotate. The polygonal shaft 2054 drives the crushing shaft 2057 to rotate, so that the crushing shaft 2057 crushes the sample. The polygonal shaft 2054 drives the ball bearing disc 2056 to squeeze against the ball bearing plate 2052, and with the help of the second spring 2055, the sample is vibrated and crushed. The sample cylinder 202 rotates along with it, which can make the sample roll and crush, improve the crushing effect, avoid uneven crushing that leads to insufficient pesticide extraction and affects the accuracy of detection. In addition, the intelligent sensor 105 accurately controls the sample volume, further ensuring the consistency of the pre-treated sample.

[0024] Example 2: Refer to Figure 5 -Figures and Figure 9 A pesticide residue detection sample preparation pretreatment device includes a cleaning component 106, which includes a cleaning pump 1061. The cleaning pump 1061 is installed in a treatment tank 101. The cleaning pump 1061 is connected to a solenoid valve 1063 through a pipe and is connected to two matrix cleaning heads 1062 through an inclined plate 103. The pipe is opened by the solenoid valve 1063 to facilitate water delivery. The matrix cleaning heads 1062 are installed on the two side walls of the treatment tank 101. An inclined plate 103 is installed in the treatment tank 101, which divides the treatment tank 101 into a clean water chamber and a wastewater chamber. The clean water chamber and wastewater chamber can be used to separate and store clean water and wastewater. Valves are provided on both sides of the treatment tank 101 to drain water as needed. The solenoid valve 1063 is connected to a columnar cleaning head 1064 through a hose. The flexibility of the hose can control the up and down movement of the pressure sensing component 1073. The limiting component 107 includes a pressure sensing component 1073. The inner ring of the pressure sensing component 1073 is provided with a sealing mesh cover 1074. The sealing mesh cover 1074 can engage with the sample cylinder 202 to keep the sample cylinder 202 stable and facilitate the cleaning operation of the sample cylinder 202. The mesh on the sealing mesh cover 1074 can drain the residual sewage after cleaning into the sewage chamber. The sealing mesh cover 1074 is used to limit the sample cylinder 202. Multiple telescopic rods 1071 and multiple first springs 1072 are installed below the pressure sensing component 1073. The first springs 1072 can support the pressure sensing component 1073 and apply pressure to the pressure sensing component 1073, thereby controlling the solenoid valve 1063 to open the pipeline. After the sample cylinder 202 is removed from the sealing mesh cover 1074, the solenoid valve 1063 will automatically close. The bottom ends of the telescopic rods 1071 and the first springs 1072 are fixedly connected to the bottom wall of the processing box 101. The vibratory crushing assembly 205 includes two side plates 2051, a ball bearing plate 2052 fixedly connected between the two side plates 2051, a ball bearing disk 2056 overlapping one side of the ball bearing plate 2052, a polygonal shaft 2054 fixedly connected to one side of the ball bearing disk 2056, a crushing shaft 2057 fixedly connected to one end of the polygonal shaft 2054, the polygonal shaft 2054 slidably connected in a polygonal sleeve 2059, a gear 2053 installed on the polygonal sleeve 2059, and a ring 204 connected to the drive assembly 201, with an upper tooth section 203 and a lower tooth section 206 installed on the ring 204; The drying assembly 102 includes a mounting base 1022, which is fixedly connected to the processing box 101. A sealing end cover 1023 and a drying device 1021 are mounted on the mounting base 1022. A drying head 1024 is mounted on the sealing end cover 1023 and is connected to the drying device 1021.

[0025] In this embodiment: after the sample is crushed, it is poured out and inverted onto the sealing mesh cover 1074. At the same time, downward pressure is applied, causing the pressure sensing component 1073 to control the solenoid valve 1063 to open. At this time, the cleaning pump 1061 delivers water through the pipeline, causing the matrix cleaning head 1062 and the columnar cleaning head 1064 to clean the crushing shaft 2057 and the sample cylinder 202. The gear 2053 drives the lower tooth segment 206, causing the polygonal sleeve 2059 to drive the polygonal shaft 2054 and the crushing shaft 2057 to rotate, allowing the crushing shaft 2057 to be rotated for cleaning, thus improving the cleaning effect. After cleaning, the sample cylinder 202 is inverted and secured onto the sealing end cover 1023. Then, the drying equipment 1021 performs drying treatment through the drying head 1024, thereby meeting the needs of batch testing and significantly shortening the batch pretreatment cycle.

[0026] Example 3: Reference Figures 1-4 and Figures 7-8 A pesticide residue detection sample preparation pretreatment device includes a cleaning and treatment mechanism 100, which includes a treatment box 101. A drying component 102 is provided on the front side of the treatment box 101. A cleaning component 106 and a limiting component 107 are provided in the treatment box 101. The columnar cleaning head 1064 of the cleaning component 106 is installed on the sealing mesh cover 1074 of the limiting component 107. The pretreatment mechanism 200 includes a drive assembly 201, which is located above the treatment box 101. Multiple vibratory crushing components 205 are connected to the drive assembly 201. A ring 204 is also connected to the drive assembly 201. An upper toothed section 203 and a lower toothed section 206 are mounted on the ring 204. The drive assembly 201 drives the vibratory crushing components 205 to rotate, so that the gears 2053 of the vibratory crushing components 205 can mesh with the upper toothed section 203 and the lower toothed section 206 in sequence.

[0027] In this embodiment: the drive component 201 drives the vibratory crushing component 205 and the upper toothed section 203 to complete the vibration crushing of the sample. After crushing, the sample tube 202 is removed. At this time, the vibratory crushing component 205 and the lower toothed section 206 are driven, so that the cleaning component 106 directly cleans the rotating crushing shaft 2057 thoroughly. After cleaning, the sample tube 202 can be further drained quickly by vibration. The sample tube 202 is directly inverted and locked on the limiting component 107. At this time, the solenoid valve 1063 is opened to carry out the cleaning operation, which achieves the effect of double cleaning. After cleaning, the sample tube 202 can be directly dried by the drying component 102. The combination of the two solves the problems of low batch efficiency and uneven crushing of traditional devices, and provides efficient and accurate detection guarantee for pesticide residues.

[0028] Working principle: During sample processing, the sample is loaded into the sample cylinder 202 and placed on the intelligent sensor 105 for weighing. After weighing, the sample cylinder 202 is clamped onto the sealing clip 2058. Then, the motor 2012 drives the rotating shaft 2013 to rotate at a constant speed. The rotating shaft 2013 drives the rotating frame 2014 to rotate. The rotating frame 2014 drives the vibrating crushing component 205 to rotate, causing the gear 2053 to first drive the upper tooth section 203 upward, which in turn drives the polygonal sleeve 2059 to rotate. The polygonal sleeve 2059 drives the polygonal shaft 2054 to rotate, and the polygonal shaft 2054 drives the crushing shaft 2057 to rotate, so that the crushing shaft 2057 crushes the sample. The rotation of the polygonal shaft 2054 also drives the ball disk 2056 to rotate. The balls of the ball disk 2056 and the ball plate 2052 are squeezed alternately. During the squeezing, the second spring 2055 deforms. When the balls are misaligned, the second spring 2055 drives the polygonal shaft 2054 to return to its original position. In this way, the squeezing by the ball disk 2056 and the ball plate 2052, combined with the second spring 2055, can realize the vibration crushing operation of the crushing shaft 2057. When gear 2053 disengages from upper tooth section 203, sample cylinder 202 is removed, and the pulverized sample is poured out. Then, sample cylinder 202 is inverted and locked onto sealing mesh cover 1074, and pressure sensing component 1073 is pressed down, causing pressure sensing component 1073 to control solenoid valve 1063 to open. Water is then supplied through cleaning pump 1061 and pipeline, causing matrix cleaning head 1062 and shaped cleaning head to spray water to clean pulverizing shaft 2057 and sample cylinder 202. Gear 2053 and lower tooth section 206 drive pulverizing shaft 2057 to rotate for cleaning. Residual wastewater from cleaning enters wastewater chamber for collection. After cleaning, sample cylinder 202 is locked onto sealing end cover 1023. Then, drying equipment 1021 dries the sample through drying head 1024. After drying, the sample is reloaded, weighed, and reused.

[0029] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sample preparation and pretreatment device for pesticide residue detection, comprising a cleaning and treatment mechanism (100), characterized in that, The cleaning and processing mechanism (100) is equipped with a pre-treatment mechanism (200). The cleaning and processing mechanism (100) includes a processing box (101), a drying component (102) is provided on the front side of the processing box (101), a cleaning component (106) and a limiting component (107) are provided in the processing box (101), and the columnar cleaning head (1064) of the cleaning component (106) is installed on the sealing mesh cover (1074) of the limiting component (107); The pretreatment mechanism (200) includes a drive assembly (201) which is located above the treatment box (101). Multiple vibratory crushing components (205) are connected to the drive assembly (201). A ring (204) is also connected to the drive assembly (201). An upper toothed section (203) and a lower toothed section (206) are installed on the ring (204). The drive assembly (201) drives the vibratory crushing components (205) to rotate, so that the gear (2053) of the vibratory crushing components (205) can mesh with the upper toothed section (203) and the lower toothed section (206) in sequence.

2. The pesticide residue detection sample preparation and pretreatment device according to claim 1, characterized in that, A fixed base (104) is fixedly connected to the processing box (101), and a smart sensor (105) is installed on the fixed base (104).

3. The pesticide residue detection sample preparation and pretreatment device according to claim 1, characterized in that, The treatment box (101) is equipped with an inclined plate (103), which divides the treatment box (101) into a clean water chamber and a sewage chamber, and valves are provided on both sides of the treatment box (101).

4. The pesticide residue detection sample preparation and pretreatment device according to claim 3, characterized in that, The cleaning assembly (106) includes a cleaning pump (1061), which is disposed in the processing tank (101). The cleaning pump (1061) is connected to a solenoid valve (1063) through a pipe and is connected to two matrix cleaning heads (1062) through an inclined plate (103). The matrix cleaning heads (1062) are installed on the two side walls of the processing tank (101). The solenoid valve (1063) is connected to the columnar cleaning head (1064) via a hose.

5. The pesticide residue detection sample preparation and pretreatment device according to claim 1, characterized in that, The limiting component (107) includes a pressure sensing component (1073), and the inner ring of the pressure sensing component (1073) is provided with a sealing mesh cover (1074), which is used to limit the sample cylinder (202).

6. The pesticide residue detection sample preparation and pretreatment device according to claim 5, characterized in that, Multiple telescopic rods (1071) and multiple first springs (1072) are installed below the pressure sensing component (1073). The bottom ends of the telescopic rods (1071) and the first springs (1072) are fixedly connected to the bottom wall of the processing box (101).

7. The pesticide residue detection sample preparation and pretreatment device according to claim 1, characterized in that, The drying assembly (102) includes a mounting base (1022), which is fixedly connected to the processing box (101). A sealing end cap (1023) and a drying device (1021) are mounted on the mounting base (1022). A drying head (1024) is mounted on the sealing end cap (1023), and the drying head (1024) is connected to the drying device (1021).

8. The pesticide residue detection sample preparation and pretreatment device according to claim 1, characterized in that, The drive assembly (201) includes a motor (2012) and two fixed plates (2011). The motor (2012) is mounted on the fixed plates (2011) via a support. The output shaft of the motor (2012) is fixedly connected to a rotating shaft (2013). A rotating frame (2014) is fixedly connected to the rotating shaft (2013). The rotating shaft (2013) is rotatably mounted on the two fixed plates (2011) via bearings. The two fixed plates (2011) are fixedly connected to the processing box (101). A fixing rod (2015) is fixedly connected to the fixed plate (2011). The fixing rod (2015) is fixedly connected to the ring (204).

9. The pesticide residue detection sample preparation and pretreatment device according to claim 8, characterized in that, The vibratory crushing assembly (205) includes two side plates (2051), which are fixedly connected to the rotating frame (2014). A sealing clip (2058) is fixedly connected to the two side plates (2051), and the sealing clip (2058) engages with the sample cylinder (202).

10. The pesticide residue detection sample preparation and pretreatment device according to claim 9, characterized in that, A ball bearing plate (2052) is fixedly connected between the two side plates (2051). A ball bearing disc (2056) overlaps one side of the ball bearing plate (2052). A polygonal shaft (2054) is fixedly connected to one side of the ball bearing disc (2056). A crushing shaft (2057) is fixedly connected to one end of the polygonal shaft (2054). The polygonal shaft (2054) is slidably connected in the polygonal sleeve (2059), and a gear (2053) is installed on the polygonal sleeve (2059). The polygonal sleeve (2059) is rotatably mounted on the sealing clip (2058) through a bearing. A second spring (2055) is fixedly connected between the polygonal sleeve (2059) and the ball disc (2056).

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