Automatic pesticide residue detection system for fruits and vegetables

Abstract

The invention discloses a fruit and vegetable pesticide residue detection automation system, and relates to the technical field of pesticide residue detection.The fruit and vegetable pesticide residue detection automation system comprises a mounting floor, a supporting middle frame is mounted at the top end of the mounting floor, a mounting bottom box is connected to the top end of the supporting middle frame, and a center mounting pipe is connected to the top surface of the mounting bottom box; the inner side of the central mounting pipe is connected with a limiting bottom plate, the bottom of the limiting bottom plate is connected with a pneumatic pump, the driving fluted disc and the rotating gear ring are matched to drive the distribution test tubes to change positions, a solution in the central distribution pipe is rapidly subpackaged into the distribution test tubes, and then the solution subpackaging convenience is effectively improved; through mutual cooperation of the components in the detection system, in the fruit and vegetable sample detection process, a sample solution can be automatically prepared and subpackaged only by cutting the sample and placing the sample into the central preparation pipe, so that the use convenience and the detection efficiency of the detection system are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of pesticide residue detection technology, specifically to an automated system for detecting pesticide residues in fruits and vegetables. Background Technology

[0002] There are many types of rapid pesticide residue detection methods, which can be mainly divided into two categories based on their principles: biochemical assays and chromatographic assays. Among them, the enzyme inhibition rate method in biochemical assays is widely used because it is rapid, sensitive, easy to operate, and inexpensive. In the process of detecting pesticide residues in fruits and vegetables, a detection system is required. However, the lack of corresponding auxiliary equipment in the current pesticide residue detection system means that the testing personnel need to manually prepare the sample solution one by one, which reduces the efficiency of sample solution preparation and the ease of use of the detection system. Summary of the Invention

[0003] This invention provides an automated system for detecting pesticide residues in fruits and vegetables, which can effectively solve the problem mentioned in the background art that, due to the lack of corresponding auxiliary equipment, the pesticide residue detection system requires manual preparation of each sample solution by the testing personnel, which reduces the efficiency of sample solution preparation and the ease of use of the detection system.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automated system for detecting pesticide residues in fruits and vegetables, comprising an installation floor, wherein a lifting and dispensing mechanism is provided on the top of the installation floor for mixing and dispensing fruit and vegetable samples with pesticide solutions, and automatically dispensing the mixed solution into each test tube; The lifting and dispensing mechanism includes a supporting frame; A support frame is installed at the top of the mounting floor, and a mounting base box is connected to the top of the support frame. A central mounting tube is connected to the top surface of the mounting base box, and a limiting base plate is connected to the inner side of the central mounting tube. A pneumatic pump is connected to the bottom of the limiting base plate, and the pneumatic pump is powered by an external power source. A central distribution pipe is installed on the top inner side of the central installation pipe. An internal sliding block is snapped into the inner side of the central distribution pipe. An installation collar is sleeved on the outer side of the central distribution pipe. A discharge top pipe is connected to one side of the central distribution pipe. The top surface of the mounting base is connected to a mounting top frame, the top surface of the mounting top frame is connected to a transverse telescopic rod, the transverse telescopic rod is powered by an external power source, the end of the transverse telescopic rod is connected to a sliding bottom strip, the top ends of the two sliding bottom strips are connected to an upper transverse frame, and the top end of the upper transverse frame is equipped with a compression telescopic rod. The top ends of the four extrusion telescopic rods are connected to a lifting top frame, and a liquid storage top box is installed on the top end of the lifting top frame. A sealing top cover is snapped into the top of the liquid storage top box. A metering micro pump is installed inside the liquid storage top box. The metering micro pump is powered by an external power source. One end of the metering micro pump is connected to an installation top tube, and an extrusion cone is fixedly connected to the middle of the bottom end of the installation top tube.

[0005] Preferably, a drive motor is embedded in the top of one side of the mounting base, the drive motor is powered by an external power source, a drive gear is fixedly sleeved on the outer side of the bottom end of the drive motor output shaft, a shifting ring is sleeved on the top of the outer side of the mounting base, a rotating gear ring is fixedly connected to the inner side of the bottom surface of the shifting ring, and a mounting sleeve is movably installed on the edge of the top surface of the shifting ring through a sliding shaft, and a dispensing test tube is slidably inserted inside the mounting sleeve; A mounting ring is fixedly connected to one end of the top surface of the mounting bracket, and a liquid guide plate is movably inserted into the top of the mounting ring.

[0006] Preferably, a sealing ring is bonded to the top edge of the limiting base plate, the bottom surface of the central adjusting tube is tightly fitted to the top surface of the sealing ring after installation, the outer side of the internal sliding block is tightly slidably fitted to the inner wall of the central adjusting tube, protective rings are embedded and bonded to the top and bottom edges of the internal sliding block, and the bottom of the outer side of the mounting collar is connected to the top of the central mounting tube by threads.

[0007] Preferably, the outer side of the sliding bottom strip is in close sliding contact with the outer side of the top of the mounting frame, a through groove is provided in the middle of the top surface corresponding to the outer position of the mounting top pipe, the outer diameter of the top of the extrusion cone is the same as the inner diameter of the central regulating pipe, the bottom of the extrusion cone is conical and a drainage vertical groove is uniformly provided along the circumferential direction on the outer side of the bottom of the extrusion cone.

[0008] Preferably, the drive gear disk and the rotating gear ring mesh with each other, a limit ring is provided on the outer side of the bottom sliding shaft of the mounting sleeve, a buffer rubber ring is bonded to the bottom edge of the mounting sleeve, the top groove of the liquid guiding plate corresponds to the outlet of the discharge top pipe, and the bottom groove of the liquid guiding plate corresponds to the top inlet of the distribution test tube.

[0009] Preferably, the outer top of the support frame is provided with an outer rotating addition and oscillation mechanism, which is used to add the corresponding auxiliary drug solution to the prepared solution and to oscillate and mix the solution inside the dispensing test tube during the rotation and repositioning process; The outer rotating vibration addition mechanism includes a support side tube, a guide outer ring, an arc-shaped guide block, a displacement telescopic rod, a connecting side frame, a lifting side ring, a support slider, an installation side tube, a guide groove, a telescopic slide rod, a fixing knob, a top box, a medicine storage box, a liquid filling port, a liquid filling pump, a liquid filling bend, and a liquid filling cone sleeve. A support side tube is fixedly connected to the outer side of the support frame, and a guide outer ring is fixedly connected to the top of the inner side of the support side tube. Arc-shaped guide blocks are fixedly connected at equal intervals along the circumferential direction on the inner side of the guide outer ring. A displacement telescopic rod is fixedly connected to the bottom edge of the mounting base box along the circumferential direction. The displacement telescopic rod is powered by an external power source. A connecting side frame is fixedly connected to the bottom end of the displacement telescopic rod. Lifting side rings are fixedly connected to the edges of multiple connecting side frames. Support sliders are fixedly connected at equal intervals along the top edge of the lifting side ring. The mounting base is symmetrically and fixedly connected to the mounting side tubes along the circumferential direction at the position corresponding to the outer side of the mounting box. A guide groove is opened through the middle of the back of the mounting side tube. A telescopic slide rod is slidably installed on the top of the inner side of the mounting side tube. A fixing knob is threadedly connected to the bottom of the back of the telescopic slide rod at the position corresponding to the inside of the guide groove. A top box is fixedly connected to the top center of the telescopic slide rod. A medicine storage box is movably snapped into the top of the inner side of the top box. A liquid filling port is provided at the top center of the medicine storage box. A liquid filling pump is embedded in the bottom of the medicine storage box near the dispensing test tube. The liquid filling pump is powered by an external power source. A liquid filling bend is fixedly connected to the middle of one side of the liquid filling pump. A liquid filling cone sleeve is snapped into the bottom of the end of the liquid filling bend.

[0010] Preferably, the top surface of the supporting side tube is in close sliding contact with the bottom surface of the outer side of the shifting ring, the arc-shaped guide block and the supporting slider are staggered and correspond to each other, and after the outer guide ring and the lifting side ring are in contact, the top surface of the arc-shaped guide block and the supporting slider are at the same height.

[0011] Preferably, the outer side of the telescopic slide rod is in close sliding contact with the inner wall of the mounting side tube, the outer side of the medicine storage box is in close sliding contact with the inner wall of the placement top box, an observation vertical groove is provided in the middle of one side of the medicine storage box, the top of the inner side of the liquid filling cone sleeve is in close contact with the outer side of the liquid filling bend, and the bottom outlet of the liquid filling cone sleeve corresponds to the top opening of the dispensing test tube.

[0012] Preferably, the top edge of the mounting floor is provided with an auxiliary placement and storage mechanism to protect the outer side of each component on the top of the mounting floor and to provide assistance during the use of the detection system; The auxiliary placement and storage mechanism includes a mounting frame, a sealing back plate, a bottom rotating frame, a telescopic sliding box, a snap-fit ​​cotton block, a top rotating frame, a mounting inner frame, a limiting hole plate, a limiting bottom box, a placement top box, a storage bottom box, a sliding storage box, and an absorbent cotton pad. The top back edge of the mounting floor is fixedly connected to an mounting frame. A sealing back plate is fixedly connected to the inner side of the mounting frame at the position corresponding to the back of the mounting floor. Bottom rotating frames are hinged to both sides of the mounting frame. A telescopic sliding box is slidably embedded in the middle of the side of the bottom rotating frame. A snap-fit ​​cotton block is embedded inside the telescopic sliding box. The top of the side of the mounting frame is hinged to a top rotating frame, and an inner mounting frame is fixedly connected to the middle of the inner side of the top rotating frame. A limit hole plate is fixedly connected to the top of one side of the inner mounting frame, a limit bottom box is snapped into the bottom of one side of the inner mounting frame, and a placement top box is snapped into the top of one side of the inner mounting frame. A storage box is fixedly connected to the bottom surface of the installation floor. A sliding storage box is slidably engaged inside the storage box. An absorbent cotton pad is adhered to the bottom surface of the sliding storage box.

[0013] Preferably, the center of the snap-fit ​​cotton block is provided with a uniform circular groove, and the inner diameter of the circular groove is the same as the outer diameter of the distribution test tube. The center of the top surface of the limiting hole plate is provided with an elongated circular groove at equal intervals.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use. 1. A lifting-type dispensing and packaging mechanism is installed. Through the cooperation of the various components within the lifting-type dispensing and packaging mechanism, the solution dispensing process during the use of the detection system is optimized. The extension and retraction of the extrusion rod drives the extrusion cone to rise and fall, and the rising and falling of the extrusion cone drives the extrusion cone to quickly extrude and refine the sample block, allowing the components in the sample to penetrate into the solvent more quickly. This effectively improves the solution dispensing effect of the detection system. At the same time, the air pressure pump drives the internal sliding block, and the drive toothed disc cooperates with the rotating toothed ring to drive the dispensing test tube to change position, quickly dispensing the solution in the central dispensing tube into the dispensing test tube. This effectively improves the convenience of solution dispensing. Through the cooperation of the various components within the detection system, in the process of fruit and vegetable sample testing, it is only necessary to cut the sample and place it into the central dispensing tube to automatically complete the sample solution dispensing and packaging, thus effectively improving the convenience of use and detection efficiency of the detection system. Meanwhile, the modular design of the central mixing tube, liquid storage box, distribution test tube, and liquid guide plate allows for the rapid replacement of these easily contaminated components after each solution preparation test. This quickly removes contaminants from the testing system, effectively improving the ease of cleaning and enabling the system to quickly perform the next test after completing the test on one type of fruit and vegetable sample, thus significantly improving the system's efficiency.

[0015] 2. An externally rotating oscillation mechanism is incorporated. Through the coordinated operation of its internal components, the addition process of auxiliary reagents within the dispensing tube is optimized. The rotating ring and mounting sleeve work together to rapidly rotate the dispensing tube, and a dispensing pump adds a quantitative amount of auxiliary reagent from the storage box to the tube, significantly improving the convenience of reagent addition. Simultaneously, an arc-shaped guide block guides the dispensing tube's movement during rotation, oscillating the solution inside and improving the mixing efficiency after reagent addition. This further enhances the ease of use of the detection system. Furthermore, the cooperation between the installed side tube and the telescopic slide rod allows for convenient height adjustment of the storage box during use, thereby achieving the desired distance between the bottom of the filling cone sleeve and the top opening of the dispensing test tube. This effectively improves the smoothness of the detection system's operation. In addition, the detachable filling cone sleeve can protect and guide the end of the filling bend. After adding a batch of auxiliary reagents, the residual reagent at the end of the filling bend can be removed by removing the filling cone sleeve, further enhancing the ease of use of the detection system.

[0016] 3. An auxiliary placement and storage mechanism is provided. Through the cooperation of the various components within the auxiliary placement and storage mechanism, the ease of use of the testing system is effectively optimized. The installation frame, along with the bottom and top rotating frames, protects the outside of the installation floor, effectively preventing damage to the upper components of the installation floor during idle periods. The pull-out structure of the telescopic sliding box allows for quick access to the dispensing tubes during use. The cooperation between the limiting plate, the limiting bottom box, and the placement top box allows for the placement of instruments during use. The sliding storage box and absorbent pads facilitate the quick storage of used instruments, thereby effectively improving the smoothness and convenience of the testing system. Meanwhile, the rotating and splicing structure design of the bottom and top rotating frames allows the testing system to be folded and stored when not in use, reducing the space occupied by the testing system during idle periods and thus effectively improving the convenience of transportation and placement of the testing system.

[0017] In summary, the coordinated operation of the lifting and dispensing mechanism, the external rotating addition and vibration mechanism, and the auxiliary placement and storage mechanism optimizes the solution preparation, auxiliary reagent addition, and instrument placement processes during the use of the detection system. The cooperation between the pneumatic pump and the drive motor enables automatic preparation and dispensing of sample solutions, and the addition pump facilitates convenient dispensing of auxiliary reagents, thereby achieving automatic preparation and dispensing of the detection solution and improving the smoothness of the system's operation. Furthermore, the unfolding of the bottom and top rotating frames allows for the placement of instruments required during the use of the detection system, enhancing its overall integration and effectively expanding its functionality. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] In the attached diagram: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the liquid storage top box of the present invention; Figure 3 This is a schematic diagram of the structure of the top rotating frame of the present invention after it is retracted; Figure 4 This is a schematic diagram of the structure for mounting the drive gear disc of the present invention; Figure 5 This is a schematic diagram of the lifting and dispensing mechanism of the present invention; Figure 6 This is a schematic diagram of the installation structure of the quantitative micropump of the present invention; Figure 7 This is a schematic diagram of the mounting structure of the top frame of the present invention; Figure 8 This is a schematic diagram of the internal sliding block installation structure of the present invention; Figure 9 This is a schematic diagram of the externally rotating oscillation mechanism of the present invention; Figure 10 This is a schematic diagram of the installation structure of the lifting edge ring of the present invention; Figure 11 This is a schematic diagram of the structure of the auxiliary placement and storage mechanism of the present invention; Figure 12 This is a schematic diagram of the installation structure of the sliding storage box of the present invention; Numbered in the diagram: 1. Installing the floor; 2. Lifting and dispensing mechanism; 201. Support frame; 202. Mounting base box; 203. Central mounting pipe; 204. Limiting base plate; 205. Air pump; 206. Central dispensing pipe; 207. Internal sliding block; 208. Mounting collar; 209. Discharge top pipe; 210. Mounting top frame; 211. Lateral telescopic rod; 212. Sliding bottom strip; 213. Upper transverse frame; 214. Extrusion telescopic rod; 215. Lifting top frame; 216. Liquid storage top box; 217. Sealed top cover; 218. Quantitative micro pump; 219. Mounting top pipe; 220. Extrusion cone; 221. Drive motor; 222. Drive gear plate; 223. Shifting ring; 224. Rotating gear ring; 225. Mounting sleeve; 226. Dispensing test tube; 227. Mounting retaining ring; 228. Liquid guide plate; 3. Externally rotating vibration mechanism; 301. Support side tube; 302. Guide outer ring; 303. Arc-shaped guide block; 304. Telescopic rod for shifting; 305. Connecting side frame; 306. Lifting side ring; 307. Support slider; 308. Installation side tube; 309. Guide groove; 310. Telescopic slide rod; 311. Fixing knob; 312. Placement box for top box; 313. Medicine storage box; 314. Liquid filling port; 315. Liquid filling pump; 316. Liquid filling bend; 317. Liquid filling cone sleeve; 4. Auxiliary placement of storage mechanism; 401. Installation frame; 402. Sealed back panel; 403. Bottom rotating frame; 404. Telescopic sliding box; 405. Snap-fit ​​cotton block; 406. Top rotating frame; 407. Installation of inner frame; 408. Limiting hole plate; 409. Limiting bottom box; 410. Placement top box; 411. Storage bottom box; 412. Sliding storage box; 413. Absorbent cotton pad. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figure 1-12 As shown, the present invention provides a technical solution, an automated system for detecting pesticide residues in fruits and vegetables, including a mounting floor 1, and a lifting mixing and dispensing mechanism 2 on the top of the mounting floor 1, for mixing and dispensing fruit and vegetable samples with pesticide solutions, and automatically dispensing the mixed solution into each test tube; The lifting and dispensing mechanism 2 includes a supporting frame 201, a mounting base box 202, a central mounting pipe 203, a limiting base plate 204, a pneumatic pump 205, a central dispensing pipe 206, an internal sliding block 207, a mounting collar 208, a discharge top pipe 209, a mounting top frame 210, a transverse telescopic rod 211, a sliding bottom strip 212, an upper transverse frame 213, a squeezing telescopic rod 214, a lifting top frame 215, a liquid storage top box 216, a sealing top cover 217, a quantitative micro pump 218, a mounting top pipe 219, a squeezing cone 220, a drive motor 221, a drive gear disc 222, a shifting ring 223, a rotating gear ring 224, a mounting sleeve 225, a dispensing test tube 226, a mounting retaining ring 227, and a liquid guiding trough plate 228. A support frame 201 is fixedly installed at the top center of the mounting floor 1. A mounting base box 202 is fixedly connected to the top edge of the support frame 201. A central mounting pipe 203 is fixedly connected to the top center of the mounting base box 202. A limiting base plate 204 is fixedly connected to the bottom inside the central mounting pipe 203. An air pressure pump 205 is fixedly connected to the bottom of the limiting base plate 204 at the position corresponding to the inside of the mounting base box 202 through a pipe. The air pressure pump 205 is powered by an external power source. A central regulating pipe 206 is installed on the top inner side of the central mounting pipe 203. An internal sliding block 207 is slidably engaged with the top inner side of the central regulating pipe 206. An installation collar 208 is fixedly sleeved on the top outer side of the central regulating pipe 206. A discharge top pipe 209 is fixedly connected to the top side of the central regulating pipe 206. A sealing ring is bonded to the edge of the top surface of the limiting base plate 204. After installation, the bottom surface of the central regulating pipe 206 is tightly fitted with the top surface of the sealing ring. The outer side of the internal sliding block 207 is tightly slidably fitted with the inner wall of the central regulating pipe 206. Protective rings are embedded and bonded to the top and bottom edges of the internal sliding block 207. The bottom outer side of the installation collar 208 is connected to the top of the central mounting pipe 203 by threads. A mounting bracket 210 is fixedly connected to the top of the mounting base 202 at the outer position corresponding to the center mounting tube 203. A transverse telescopic rod 211 is fixedly connected to both sides of the top surface of the mounting bracket 210. The transverse telescopic rod 211 is powered by an external power source. A sliding bottom strip 212 is slidably fixedly connected to the outer end of the transverse telescopic rod 211 at both sides of the top surface of the mounting bracket 210. An upper transverse frame 213 is fixedly connected to the top of the two sliding bottom strips 212. A compression telescopic rod 214 is embedded at the four corners of the top of the upper transverse frame 213. The top ends of the four extrusion telescopic rods 214 are fixedly connected to the lifting top frame 215. The top end of the lifting top frame 215 is threadedly installed with a liquid storage top box 216. The top end of the liquid storage top box 216 is fitted with a sealing top cover 217. A metering micro pump 218 is fixedly installed on the bottom edge of the inner side of the liquid storage top box 216. The metering micro pump 218 is powered by an external power source. One end of the metering micro pump 218 is fixedly connected to the installation top pipe 219 through a pipe at the middle position of the bottom surface of the liquid storage top box 216. An extrusion cone 220 is fixedly connected to the middle of the bottom end of the installation top pipe 219. The outer side of the sliding bottom strip 212 is tightly slidably fitted with the outer side of the top of the installation top frame 210. A through groove is opened at the middle position of the top surface corresponding to the outer side of the installation top pipe 219. The outer diameter of the top of the extrusion cone 220 is the same as the inner diameter of the central dispensing pipe 206. The bottom of the extrusion cone 220 is conical and a vertical drain groove is evenly opened along the circumferential direction on the outer side of the bottom of the extrusion cone 220. A drive motor 221 is embedded in the top of one side of the mounting base 202. The drive motor 221 is powered by an external power source. A drive gear 222 is fixedly sleeved on the outer side of the bottom end of the output shaft of the drive motor 221. A shift ring 223 is sleeved on the top of the outer side of the mounting base 202. A rotating gear ring 224 is fixedly connected to the inner side of the bottom surface of the shift ring 223. An installation sleeve 225 is movably installed on the top edge of the shift ring 223 through a sliding shaft. A dispensing test tube 226 is slidably inserted inside the installation sleeve 225. A mounting ring 227 is fixedly connected to one end of the top surface of the mounting bracket 210. A liquid guide plate 228 is movably inserted into the top of the mounting ring 227. The drive gear 222 meshes with the rotating gear ring 224. A limit ring is provided on the outer side of the bottom sliding shaft of the mounting sleeve 225. A buffer rubber ring is glued to the edge of the bottom surface of the mounting sleeve 225. The top groove of the liquid guide plate 228 corresponds to the outlet of the discharge top pipe 209, and the bottom groove of the liquid guide plate 228 corresponds to the top inlet of the distribution test tube 226. Through the cooperation between the various components inside the lifting and dispensing mechanism 2, the solution dispensing process during the use of the detection system is optimized. The extension and retraction of the extrusion telescopic rod 214 drives the extrusion cone 220 to rise and fall, and the rise and fall of the extrusion cone 220 drives the extrusion cone head. The sample block is rapidly squeezed and refined, allowing the components in the sample to penetrate into the solvent more quickly, thus effectively improving the solution preparation effect of the detection system. At the same time, the internal sliding block 207 is driven by the air pump 205, and the drive toothed disc 222 cooperates with the rotating toothed ring 224 to drive the dispensing tube 226 to change position, quickly dispensing the solution inside the central dispensing tube 206 into the dispensing tube 226, thus effectively improving the convenience of solution dispensing. Through the cooperation between the various components inside the detection system, the sample solution preparation and dispensing can be automatically completed by simply cutting the sample and placing it into the central dispensing tube 206 during the fruit and vegetable sample detection process, thus effectively improving the convenience of use and detection efficiency of the detection system. Meanwhile, the modular design of the central mixing tube 206, the liquid storage top box 216, the distribution test tube 226, and the liquid guiding plate 228 allows for the rapid replacement of these easily contaminated components after each solution mixing test. This quickly removes contaminants from the testing system, effectively improving the ease of cleaning and enabling the system to quickly perform the next test after completing the test of one type of fruit and vegetable sample, thus effectively improving the efficiency of the testing system. An outer rotating addition and oscillation mechanism 3 is provided on the top of the outer side of the support frame 201, which is used to add the corresponding auxiliary drug solution to the prepared solution and to oscillate and mix the solution inside the dispensing test tube 226 during the rotation and repositioning process. The outer rotating type vibration addition mechanism 3 includes a support side tube 301, a guide outer ring 302, an arc-shaped guide block 303, a shifting telescopic rod 304, a connecting side frame 305, a lifting side ring 306, a support slider 307, an installation side tube 308, a guide groove 309, a telescopic slide rod 310, a fixing knob 311, a top box placement 312, a medicine storage box 313, a liquid filling port 314, a liquid filling pump 315, a liquid filling bend 316, and a liquid filling cone sleeve 317; A support side tube 301 is fixedly connected to the outer side of the support frame 201. A guide outer ring 302 is fixedly connected to the top of the inner side of the support side tube 301. Arc-shaped guide blocks 303 are fixedly and evenly connected at equal intervals along the circumferential direction on the inner side of the guide outer ring 302. A displacement telescopic rod 304 is fixedly connected to the bottom edge of the mounting base 202 along the circumferential direction. The displacement telescopic rod 304 is powered by an external power source. A connecting side frame 305 is fixedly connected to the bottom end of the displacement telescopic rod 304. Lifting side rings 306 are fixedly connected to the edges of multiple connecting side frames 305. Support sliders 307 are fixedly and evenly connected at equal intervals on the top edge of the lifting side ring 306. The top surface of the support side tube 301 and the outer bottom surface of the displacement rotating ring 223 are tightly slidably fitted together. The positions of the arc-shaped guide blocks 303 and the support sliders 307 are staggered and correspond to each other. After the guide outer ring 302 and the lifting side ring 306 are fitted together, the top surfaces of the arc-shaped guide blocks 303 and the support sliders 307 are at the same height. A mounting side tube 308 is symmetrically fixedly connected circumferentially to the top surface of the mounting base 202, corresponding to the outer position of the mounting base 202. A guide groove 309 is provided through the middle of the back of the mounting side tube 308. A telescopic slide rod 310 is slidably installed on the top inner side of the mounting side tube 308. A fixing knob 311 is threadedly connected to the bottom back of the telescopic slide rod 310, corresponding to the position inside the guide groove 309. A top box 312 is fixedly connected to the top center of the telescopic slide rod 310. A medicine storage box is movably engaged on the top inner side of the top inner side of the top box 312. The medicine storage box 313 has a filling port 314 at the top center. A filling pump 315 is embedded in the bottom of the medicine storage box 313 near the dispensing test tube 226. The filling pump 315 is powered by an external power source. A filling bend 316 is fixedly connected to the middle of one side of the filling pump 315. A filling cone sleeve 317 is snapped into the bottom of the end of the filling bend 316. The outer side of the telescopic slide rod 310 is in close sliding contact with the inner wall of the mounting side tube 308. The outer side of the medicine storage box 313 is in close sliding contact with the inner wall of the top box 312. The system features a dynamic fit, with an observation groove in the middle of one side of the drug storage box 313. The top of the inner side of the liquid filling cone sleeve 317 fits tightly against the outer side of the liquid filling bend 316. The bottom outlet of the liquid filling cone sleeve 317 corresponds to the top opening of the dispensing test tube 226. Through the cooperation of the various components inside the external rotating addition and oscillation mechanism 3, the process of adding auxiliary reagents inside the dispensing test tube 226 is optimized. Through the cooperation between the shifting ring 223 and the mounting sleeve 225, the dispensing test tube 226 is driven to rotate and shift quickly. The liquid filling pump 315 adds the auxiliary reagents inside the drug storage box 313 to the dispensing test tube 226 quantitatively and quickly, thereby effectively improving the convenience of adding auxiliary reagents. During the rotation and shifting of the dispensing test tube 226, the arc-shaped guide block 303 guides the dispensing test tube 226 to rise and fall simultaneously. The rise and fall of the dispensing test tube 226 oscillates the solution inside, effectively improving the mixing efficiency after the addition of auxiliary reagents, and thus effectively improving the convenience of using the detection system. Furthermore, through the cooperation between the side tube 308 and the telescopic slide bar 310, the height of the medicine storage box 313 can be conveniently adjusted during use, thereby realizing the distance between the bottom end of the liquid filling cone sleeve 317 and the top opening of the dispensing test tube 226, which effectively improves the smoothness of the detection system operation. In addition, the detachable liquid filling cone sleeve 317 can protect and guide the end of the liquid filling bend 316. After a batch of auxiliary reagents is added, the residual reagent at the end of the liquid filling bend 316 can be removed by removing the liquid filling cone sleeve 317, further improving the convenience of using the detection system. An auxiliary placement and storage mechanism 4 is provided at the top edge of the mounting floor 1 to protect the outer side of each component at the top of the mounting floor 1 and to provide assistance during the use of the detection system; The auxiliary placement and storage mechanism 4 includes a mounting frame 401, a sealing back plate 402, a bottom rotating frame 403, a telescopic sliding box 404, a snap-fit ​​cotton block 405, a top rotating frame 406, a mounting inner frame 407, a limiting hole plate 408, a limiting bottom box 409, a placement top box 410, a storage bottom box 411, a sliding storage box 412, and an absorbent cotton pad 413; A mounting frame 401 is fixedly connected to the top back edge of the mounting floor 1. A sealing back plate 402 is fixedly connected to the inner side of the mounting frame 401 at the position corresponding to the back of the mounting floor 1. Bottom rotating frames 403 are hinged to the bottom of both sides of the mounting frame 401. A telescopic sliding box 404 is slidably embedded in the middle of the side of the bottom rotating frame 403. A snap-fit ​​cotton block 405 is embedded in the telescopic sliding box 404. A top rotating frame 406 is hinged to the top side of the mounting frame 401. An inner mounting frame 407 is fixedly connected to the middle of the inner side of the top rotating frame 406. A limit hole plate 408 is fixedly connected to the top of one side of the inner mounting frame 407. A limit bottom box 409 is snapped into the bottom of one side of the inner mounting frame 407. A placement top box 410 is snapped into the top of one side of the inner mounting frame 407. A storage base box 411 is fixedly connected to the bottom surface of the mounting floor 1. A sliding storage box 412 is slidably engaged inside the storage base box 411. An absorbent cotton pad 413 is adhered to the bottom surface of the sliding storage box 412. A circular groove is evenly cut in the center of the engaging cotton block 405, and the inner diameter of the groove is the same as the outer diameter of the dispensing test tube 226. An elongated circular groove is evenly cut at equal intervals in the center of the top surface of the limiting hole plate 408. Through the cooperation between the various components inside the auxiliary placement storage mechanism 4, the ease of use of the detection system is effectively optimized. The outer side of the mounting floor 1 is protected by the mounting frame 401 in conjunction with the bottom rotating frame 403 and the top rotating frame 406. This effectively prevents the components on the upper layer of the installation floor 1 from being damaged by collisions during the idle period of the testing system. Through the pull-out structure design of the telescopic sliding box 404, the dispensing test tubes 226 placed inside the testing system can be quickly pulled out during use. The instruments used in the testing system are placed through the cooperation between the limiting plate 408, the limiting bottom box 409 and the placement top box 410. The instruments are quickly stored after use through the sliding storage box 412 and the absorbent cotton pad 413, thereby effectively improving the smoothness and convenience of the testing system. Meanwhile, the rotating and splicing structure design of the bottom rotating frame 403 and the top rotating frame 406 allows the testing system to be folded and stored when not in use, reducing the space occupied by the testing system during idle periods and thus effectively improving the convenience of transportation and placement of the testing system.

[0022] The working principle and usage process of this invention: In the actual application of this invention, when using the detection system to prepare the sample detection solution, it is necessary to first select an appropriate amount of solvent according to the total amount of solution to be prepared, install the liquid storage top box 216 on the top of the lifting top frame 215, add the solvent into the liquid storage top box 216, and seal the top of the liquid storage top box 216 with the sealing top cover 217, thereby completing the preparation of the solvent. Then, select a brand new central mixing tube 206, adjust the internal sliding block 207 inside it to the bottom of the discharge top tube 209, and install the central mixing tube 206 into the central installation tube 203 through the installation collar 208, so that the bottom surface of the central mixing tube 206 is tightly fitted with the top surface of the limiting base plate 204. Then, a small piece of the fruit and vegetable sample to be tested is placed on top of the internal sliding block 207. The horizontal telescopic rod 211 is activated to extend, causing the sliding bottom strip 212 to move horizontally along the top of the mounting frame 210. During the horizontal movement of the sliding bottom strip 212, the upper horizontal frame 213 and its connected components move synchronously. When the bottom of the mounting top tube 219 and the extrusion cone 220 are aligned with the top opening of the central dispensing tube 206, the extrusion telescopic rod 214 is activated to retract. The retraction of the extrusion telescopic rod 214 causes the lifting top frame 215 and the liquid storage top box 216 to descend synchronously. The descent of the liquid storage top box 216 causes the extrusion cone 220 to be inserted into the central dispensing tube 206 via the mounting top tube 219. When the bottom surface of the extrusion cone 220 is aligned with the inner surface of the central dispensing tube 206, the extrusion cone 220 is inserted into the central dispensing tube 206. After the sample comes into contact with the top surface of the sliding block 207, the sample is pressurized. After the internal sliding block 207 is squeezed down to its limit position, the air pump 205 is activated to draw air from the bottom of the central mounting tube 203 and the central mixing tube 206. Then, the internal sliding block 207 is driven to slide down along the inner wall of the central mixing tube 206 by the pressure difference between the upper and lower parts of the internal sliding block 207. During the downward movement of the internal sliding block 207, the quantitative micro pump 218 is activated simultaneously to draw solvent from the liquid storage box 216. Then, the quantitative micro pump 218 introduces the solvent into the mounting tube 219 and the squeezing cone 220. The solvent is added to the central mixing tube 206 through the drain vertical groove on the outside of the squeezing cone 220, thereby achieving the mixing of solvent and sample. When it is necessary to mix the auxiliary reagents and samples, the air pump 205 alternately pumps and fills the air at the bottom of the central mixing tube 206, so that the internal sliding block 207 can slide up and down periodically inside the central mixing tube 206, and then the sliding of the internal sliding block 207 vibrates and mixes the solvent and sample inside the central mixing tube 206. After the solution prepared in the central mixing tube 206 needs to be dispensed into the distribution test tubes 226, the liquid guiding plate 228 is installed to the bottom of the discharge top tube 209 using the installation retainer 227. Then, the air pump 205 is started to inflate the bottom of the central mixing tube 206, thereby causing the internal sliding block 207 to rise due to the pressure at the bottom of the central mixing tube 206. During the rising of the internal sliding block 207, the solution inside the central mixing tube 206 is discharged through the discharge top tube 209, and the solution discharged from the discharge top tube 209 is introduced into the corresponding distribution test tubes 226 through the liquid guiding plate 228. Inside, after a suitable amount of solution is placed in a dispensing tube 226, the drive motor 221 is started to drive the drive gear disk 222 to rotate, and the drive gear disk 222 drives the rotating gear ring 224 to rotate. During the rotation of the rotating gear ring 224, the shifting ring 223 is driven to rotate synchronously. In turn, the rotation of the shifting ring 223 drives the mounting sleeve 225 and the dispensing tube 226 to rotate synchronously, thereby transporting the empty dispensing tube 226 to the bottom of the liquid guiding plate 228 for the next solution dispensing, thus realizing the solution preparation and dispensing process. After dispensing the prepared solution into the dispensing tube 226, an appropriate amount of auxiliary agent needs to be added into the dispensing tube 226. The telescopic slide rod 310 is installed on the top of the mounting floor 1 through the installation side tube 308. After loosening the fixing knob 311 to remove the constraint on the telescopic slide rod 310, the telescopic slide rod 310 is guided by the guide groove 309 to extend and retract along the inside of the installation side tube 308. After the telescopic slide rod 310 has slid and retracted to a suitable height, the fixing knob 311 is tightened again, thereby realizing the adjustment and fixation of the height of the placement top box 312. Then, the height of the medicine storage box 313 is adjusted by raising and lowering the placement top box 312, thereby ensuring that the liquid filling cone sleeve 317 at the end of the liquid filling bend 316 can be aligned with the dispensing tube 226, and that there is a sufficient gap between the bottom end of the liquid filling cone sleeve 317 and the top end of the dispensing tube 226. The rotating ring 223 can drive the mounting sleeve 225 and the dispensing tube 226 to be transported synchronously. When the dispensing tube 226 moves to the bottom of the corresponding filling cone sleeve 317, the corresponding filling pump 315 is started to introduce the auxiliary agent inside the storage box 313 into the filling bend 316. Finally, the auxiliary agent is added to the corresponding dispensing tube 226 through the filling cone sleeve 317, thereby realizing the automatic addition of auxiliary agents in the fruit and vegetable testing process. After the auxiliary reagent is added to the solution inside the dispensing tube 226, the telescopic rod 304 is extended, causing the connecting frame 305 to move down. The connecting frame 305 then causes the lifting ring 306 and the support slider 307 to move down synchronously, so that the support slider 307 moves down from the gap between the arc-shaped guide blocks 303. The drive motor 221 and the drive gear 222 drive the dispensing ring 223 to rotate. As the dispensing ring 223 drives the mounting sleeve 225 to rotate, the bottom end of the sliding shaft of the mounting sleeve 225 will slide up and down along the top of the arc-shaped guide block 303. In this way, the mounting sleeve 225 and the dispensing tube 226 will move up and down during the rotation of the dispensing ring 223, thereby realizing the rapid mixing of the solution inside the dispensing tube 226. During the use of the detection system, some auxiliary instruments are required for operation. The sealing back plate 402 is installed on the back of the mounting base 1 by mounting frame 401, and the bottom rotating frame 403 and the top rotating frame 406 are installed on the outside of the mounting base 1 by mounting frame 401. New dispensing tubes 226 can be stored by telescopic sliding box 404, and the dispensing tubes 226 inside the telescopic sliding box 404 are clamped by snap-fit ​​cotton block 405, thereby effectively improving the safety of dispensing tubes 226 during placement. The limiting bottom box 409 and the placement top box 410 are installed on the inner wall of the top rotating frame 406 by mounting inner frame 407. The limiting bottom box 409 supports the bottom of the instrument placed inside the limiting hole plate 408, and the placement top box 410 places the used instrument. When the auxiliary instruments need to be stored after use, the sliding storage box 412 inside the storage base box 411 is pulled out to place the used instruments inside the sliding storage box 412. The absorbent cotton pad 413 absorbs the liquid that drips from the instruments inside the sliding storage box 412, effectively preventing the leakage of liquid during the storage of instruments and dispensing tubes 226, thereby expanding the function of the detection system.

[0023] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An automated system for detecting pesticide residues in fruits and vegetables, comprising a mounting floor (1), characterized in that: The installation floor (1) is equipped with a lifting mixing and dispensing mechanism (2) on top. The lifting mixing and dispensing mechanism (2) is used to mix and dispense fruit and vegetable samples with medicine, and automatically dispense the mixed solution into each test tube. The lifting and dispensing mechanism (2) includes a support frame (201); The top of the mounting floor (1) is equipped with a support frame (201), the top of the support frame (201) is connected to a mounting base box (202), the top surface of the mounting base box (202) is connected to a central mounting pipe (203), the inner side of the central mounting pipe (203) is connected to a limiting base plate (204), and the bottom of the limiting base plate (204) is connected to an air pressure pump (205). A central regulating pipe (206) is installed on the top inner side of the central mounting pipe (203). An internal sliding block (207) is snapped into the inner side of the central regulating pipe (206). An installation collar (208) is sleeved on the outer side of the central regulating pipe (206). A discharge top pipe (209) is connected to one side of the central regulating pipe (206). The top surface of the mounting base box (202) is connected to the mounting top frame (210), the top surface of the mounting top frame (210) is connected to the transverse telescopic rod (211), the end of the transverse telescopic rod (211) is connected to the sliding bottom strip (212), the top ends of the two sliding bottom strips (212) are connected to the upper transverse frame (213), and the top end of the upper transverse frame (213) is equipped with the compression telescopic rod (214). The top ends of the four extrusion telescopic rods (214) are connected to lifting top frames (215), the top ends of the lifting top frames (215) are equipped with liquid storage top boxes (216), the top ends of the liquid storage top boxes (216) are fitted with sealing top covers (217), the inside of the liquid storage top boxes (216) is equipped with quantitative micro pumps (218), one end of the quantitative micro pumps (218) is connected to an installation top tube (219), and the bottom end of the installation top tube (219) is fixedly connected to an extrusion cone (220).

2. The automated pesticide residue detection system for fruits and vegetables according to claim 1, characterized in that, A drive motor (221) is embedded in the top of one side of the mounting base (202). A drive gear (222) is fixedly sleeved on the outer side of the bottom end of the output shaft of the drive motor (221). A shift ring (223) is sleeved on the top of the outer side of the mounting base (202). A rotating gear ring (224) is fixedly connected to the inner side of the bottom surface of the shift ring (223). An installation sleeve (225) is movably installed on the top edge of the shift ring (223) through a sliding shaft. A dispensing test tube (226) is slidably inserted inside the installation sleeve (225). The mounting bracket (210) has a mounting ring (227) fixedly connected to one end of the top surface of the mounting bracket (210), and a liquid guide plate (228) is movably inserted into the top of the mounting ring (227).

3. The automated pesticide residue detection system for fruits and vegetables according to claim 2, characterized in that, A sealing ring is bonded to the top edge of the limiting base plate (204). After the central regulating pipe (206) is installed, the bottom surface is tightly fitted with the top surface of the sealing ring. The outer side of the internal sliding block (207) is tightly fitted with the inner wall of the central regulating pipe (206). The top and bottom edges of the internal sliding block (207) are both embedded with protective rubber rings, and the bottom of the outer side of the mounting collar (208) is connected to the top of the central mounting tube (203) by threads.

4. The automated pesticide residue detection system for fruits and vegetables according to claim 2, characterized in that, The pneumatic pump (205), the horizontal telescopic rod (211), the quantitative micro pump (218), and the drive motor (221) are all electrically connected to an external power source via a control switch; The outer side of the sliding bottom strip (212) is in close sliding contact with the outer side of the top of the mounting bracket (210). A through groove is provided in the middle of the top surface corresponding to the outer side of the mounting top pipe (219). The outer diameter of the top of the extrusion cone (220) is the same as the inner diameter of the central regulating pipe (206). The bottom of the extrusion cone (220) is conical and a drainage vertical groove is uniformly provided along the circumferential direction on the outer side of the bottom of the extrusion cone (220).

5. The automated system for detecting pesticide residues in fruits and vegetables according to claim 2, characterized in that, The drive gear disk (222) and the rotating gear ring (224) mesh with each other. A limit ring is provided on the outer side of the bottom sliding shaft of the mounting sleeve (225). A buffer rubber ring is glued to the bottom edge of the mounting sleeve (225). The top slot of the liquid guiding plate (228) corresponds to the outlet of the discharge top pipe (209), and the bottom slot of the liquid guiding plate (228) corresponds to the top inlet of the distribution test tube (226).

6. The automated pesticide residue detection system for fruits and vegetables according to claim 4, characterized in that, The outer top of the support frame (201) is provided with an outer rotating addition and oscillation mechanism (3). The outer rotating addition and oscillation mechanism (3) is used to add the corresponding auxiliary drug solution to the prepared solution and to oscillate and mix the solution inside the dispensing test tube (226) during the rotation and repositioning process. The outer rotating oscillation mechanism (3) includes a support side tube (301); The outer side of the support frame (201) is connected to a support tube (301), the top of the inner side of the support tube (301) is connected to a guide ring (302), the inner side of the guide ring (302) is evenly connected with arc-shaped guide blocks (303) at equal intervals along the circumferential direction, the bottom edge of the mounting base (202) is connected with a displacement telescopic rod (304) at the circumferential direction, the bottom end of the displacement telescopic rod (304) is fixedly connected to a connecting frame (305), the edges of multiple connecting frames (305) are fixedly connected with lifting rings (306), and the top edge of the lifting rings (306) is evenly fixedly connected with support sliders (307). The mounting floor (1) has mounting side tubes (308) symmetrically fixedly connected along the circumferential direction at the position corresponding to the outer side of the mounting base box (202) on its top surface. A guide groove (309) is provided through the middle of the back of the mounting side tube (308). A telescopic slide rod (310) is slidably installed on the top of the inner side of the mounting side tube (308). A fixing knob (311) is threadedly connected to the bottom of the back of the telescopic slide rod (310) at the position corresponding to the inside of the guide groove (309). The top of the telescopic slide rod (310) A top box (312) is fixedly connected to the middle part. A medicine storage box (313) is movably snapped into the top of the inner side of the top box (312). A liquid filling port (314) is provided at the middle of the top of the medicine storage box (313). A liquid filling pump (315) is embedded in the bottom of the medicine storage box (313) near the dispensing test tube (226). A liquid filling bend (316) is fixedly connected to the middle of one side of the liquid filling pump (315). A liquid filling cone sleeve (317) is snapped into the bottom of the end of the liquid filling bend (316).

7. The automated pesticide residue detection system for fruits and vegetables according to claim 6, characterized in that, The telescopic rod (304) and the liquid filling pump (315) are both electrically connected to an external power source via a control switch; The top surface of the support side tube (301) and the bottom surface of the outer side of the shifting ring (223) are closely slidably attached. The positions of the arc-shaped guide block (303) and the support slider (307) are staggered and correspond to each other. After the guide outer ring (302) and the lifting side ring (306) are attached, the top surface of the arc-shaped guide block (303) and the support slider (307) are at the same height.

8. The automated pesticide residue detection system for fruits and vegetables according to claim 6, characterized in that, The telescopic slide rod (310) is in close sliding contact with the inner wall of the mounting side tube (308), the medicine storage box (313) is in close sliding contact with the inner wall of the placement top box (312), an observation vertical groove is provided in the middle of one side of the medicine storage box (313), the top of the inner side of the liquid filling cone sleeve (317) is in close contact with the outer side of the liquid filling bend (316), and the bottom outlet of the liquid filling cone sleeve (317) corresponds to the top opening of the dispensing test tube (226).

9. An automated system for detecting pesticide residues in fruits and vegetables according to claim 6, characterized in that, The top edge of the mounting floor (1) is provided with an auxiliary placement and storage mechanism (4). The auxiliary placement and storage mechanism (4) is used to protect the outside of each component on the top of the mounting floor (1) and to provide assistance during the use of the detection system. The auxiliary placement and storage mechanism (4) includes a mounting frame (401). The mounting floor (1) is fixedly connected to the top back edge of the mounting frame (401). The inner side of the mounting frame (401) is fixedly connected to the back of the mounting floor (1). The bottom of both sides of the mounting frame (401) is hinged with a bottom rotating frame (403). The middle side of the bottom rotating frame (403) is slidably embedded with a telescopic sliding box (404). The telescopic sliding box (404) is embedded with a snap-fit ​​cotton block (405). The mounting frame (401) is hinged to the top of the side with a top rotating frame (406), and the inner side of the top rotating frame (406) is fixedly connected to the middle of the inner side with an inner mounting frame (407). A limiting hole plate (408) is fixedly connected to the top of one side of the inner mounting frame (407), a limiting bottom box (409) is snapped into the bottom of one side of the inner mounting frame (407), and a placement top box (410) is snapped into the top of one side of the inner mounting frame (407). The bottom surface of the installation floor (1) is fixedly connected to a storage box (411), and a sliding storage box (412) is slidably engaged inside the storage box (411). An absorbent cotton pad (413) is adhered to the bottom surface of the sliding storage box (412).

10. An automated system for detecting pesticide residues in fruits and vegetables according to claim 9, characterized in that, The snap-fit ​​cotton block (405) has a uniformly spaced circular groove in the middle, and the inner diameter of the circular groove is the same as the outer diameter of the distribution test tube (226). The top surface of the limiting hole plate (408) has an evenly spaced elongated circular groove.

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