CN114152602A - Online pesticide residue detection device and method - Google Patents
Online pesticide residue detection device and method Download PDFInfo
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- CN114152602A CN114152602A CN202111409441.3A CN202111409441A CN114152602A CN 114152602 A CN114152602 A CN 114152602A CN 202111409441 A CN202111409441 A CN 202111409441A CN 114152602 A CN114152602 A CN 114152602A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/65—Raman scattering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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Abstract
The invention provides an online pesticide residue detection device, which comprises a bottom plate, wherein the left side of the upper end of the bottom plate is fixedly connected with a first liquid storage tank, the upper end of the first liquid storage tank is provided with a second liquid storage tank, the upper end of the second liquid storage tank is fixedly connected with a fixed part of the first liquid pumping equipment, the inlet end of the first liquid pumping device is respectively communicated with the first liquid storage tank and the second liquid storage tank, the outlet end of the first liquid pumping device is communicated with the inlet end of the sampling mechanism, the sampling mechanism is fixed in the middle of the upper end of the bottom plate, the outlet of the sampling mechanism is communicated with the inlet of the second liquid pumping equipment which is fixed at the upper end of the bottom plate, compared with the prior art, the invention has the following beneficial effects that: the purpose of the integration of sampling, detection and disinfection of crops is achieved, the working efficiency is improved, and the detection quality is improved.
Description
Technical Field
The invention discloses an online pesticide residue detection device and method, and belongs to the field of pesticide residue detection in time.
Background
The development of agricultural industrialization leads the production of agricultural products to depend on exogenous substances such as pesticides, antibiotics, hormones and the like more and more, the dosage of the pesticides in the agricultural products in China is high, and the unreasonable use of the substances can lead the pesticide residue in the agricultural products to exceed the standard, thus affecting the edible safety of consumers, and causing the pathogenic, abnormal development and even direct poisoning and death of the consumers in serious cases. The over-standard pesticide residue also affects the trade of agricultural products, all countries in the world pay high attention to the problem of pesticide residue, especially, the more and more strict limit standards are set for the pesticide residue in various crops and vegetables food for supplementing main food, so that the export of agricultural products in China faces a serious challenge.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an online pesticide residue detection device and method to solve the problems in the background technology.
In order to achieve the purpose, the invention is realized by the following technical scheme: an online pesticide residue detection device comprises a bottom plate, wherein the left side of the upper end of the bottom plate is fixedly connected with a first liquid storage tank for storing disinfectant, the upper end of the first liquid storage tank is provided with a second liquid storage tank for storing enhancement liquid, the upper end of the second liquid storage tank is fixedly connected with a fixing part of the first liquid pumping equipment, the inlet end of the first liquid pumping device is respectively communicated with the first liquid storage tank and the second liquid storage tank, the outlet end of the first liquid pumping device is communicated with the inlet end of the sampling mechanism, the sampling mechanism is fixed in the middle of the upper end of the bottom plate, the outlet of the sampling mechanism is communicated with the inlet of the second liquid pumping equipment which is fixed at the upper end of the bottom plate, the outlet of the second liquid pumping device is communicated with the liquid collecting box, the liquid collecting box is fixed on the right side of the upper end of the bottom plate, and the upper end of the liquid collecting box is provided with a detector for detecting sample liquid in the liquid collecting box.
Further, sampling mechanism is including fixing the urceolus in the bottom plate upper end, the articulated apron that is provided with in urceolus upper end, urceolus left side wall side edge position installation shower nozzle and the import intercommunication of first drawing liquid equipment are arranged, urceolus inner wall fixed connection Y shape section of thick bamboo and Y shape section of thick bamboo are in the shower nozzle downside, the inside intermediate position fixed connection filter plate of Y shape section of thick bamboo, Y shape section of thick bamboo lower extreme installation filter screen, the inside downside installation of urceolus is used for collecting the collection section of thick bamboo and the collection section of thick bamboo of appearance liquid and is in under the filter screen, the collection section of thick bamboo passes through the import intercommunication installation of pipeline and second drawing liquid equipment.
Furthermore, the upper part of the collecting cylinder is communicated and fixed with a conical cover which is arranged in a large-size mode and a small-size mode, the conical cover is fixed on the inner wall of the outer cylinder, and the lower end of the Y-shaped cylinder is provided with the conical cover and extends into the conical cover.
Further, apron upper end intercommunication fixed band radiating groove's dustcoat, the inside movable mounting drive arrangement of dustcoat, dustcoat upper end fixed connection jacking equipment's fixed part, jacking equipment's movable part pass the dustcoat and with drive arrangement fixed connection, drive arrangement's movable part fixed connection expansion disc and expansion disc are in the dustcoat, inside top side movable mounting awl head piece of urceolus and awl head piece are under the expansion disc, the coupling assembling of cone head piece lower extreme installation vertical arrangement, coupling assembling sets up in Y shape section of thick bamboo upper end and extends into Y shape section of thick bamboo, coupling assembling runs through the filter plate and with filter plate sliding connection, coupling assembling lower extreme installation outward appearance is the flexible cleaning brush and the flexible cleaning brush of plum blossom shape and is in between filter plate and the filter screen.
Further, flexible cleaning brush upper end edge position rotates and connects ring and be in the filter plate downside, the ring is in the coupling assembling outside, the equidistance installation is a plurality of elastic components of circular arrangement between ring and the filter plate.
Further, coupling assembling is including fixing the straight section of thick bamboo at flexible cleaning brush upper end intermediate position vertical arrangement, straight section of thick bamboo run through the filter plate and with filter plate sliding connection, straight section of thick bamboo upper end sliding connection round bar and round bar extend into straight section of thick bamboo inside, round bar upper end fixed connection conical head piece, a plurality of through-holes are seted up to the equidistance on the round bar, straight section of thick bamboo upper portion installation bolt and bolt run through the through-hole on straight section of thick bamboo and the round bar.
Furthermore, a plurality of first inserted bars are evenly installed at the middle position of the lower end of the movable disc, and a plurality of second inserted bars are evenly arranged at the upper end of the cone head block and are located under the first inserted bars.
Further, a liquid level sensor used for detecting the liquid level height is installed at the edge of the upper side of the left end of the collecting barrel, a controller with a power supply is fixedly connected to the upper end of the bottom plate, the controller is located between the first liquid storage tank and the outer barrel, and the controller is respectively connected with the first liquid pumping device, the second liquid pumping device, the detector, the driving device, the lifting device and the liquid level sensor.
Further, the bottom plate lower extreme is used for collecting the second of waste liquid and collects box and second and collect the box intercommunication and arrange, the connecting pipe of taking the solenoid valve is collected to second upper end intercommunication installation, and the connecting pipe passes bottom plate and urceolus and communicates with the collection cylinder, the installation of second collection box lower extreme is used for collecting the first collection box and the collection box intercommunication of waste liquid and arranges.
An online pesticide residue detection method comprises the following steps:
step one, adjustment: according to the height of crops to be measured, firstly disassembling the inserted pin, enabling the round rod to move up and down to a proper position along the straight cylinder, then enabling the inserted pin to penetrate through the straight cylinder and a through hole in the proper position on the round rod, and further adjusting the height of the conical head block;
step two, assembling: opening the cover plate, mounting crops to be detected at the upper end of the conical head block by using the second insertion rod, closing the cover plate, starting the lifting device by using the controller, enabling the driving device, the movable disc and the first insertion rod to move downwards, mounting the crops to be detected by using the first insertion rod, further fastening and mounting the crops to be detected, and enabling the conical head block, the round rod, the straight cylinder, the flexible cleaning brush and the ring to move downwards, so that the elastic part is stretched, and the flexible cleaning brush is attached to the upper end of the filter screen;
step three, sampling: the controller is utilized to start the first liquid pumping device, so that the reinforcing liquid in the second liquid storage tank is conveyed to the spray head and sprayed to the surface of the crop to be detected, meanwhile, the controller is utilized to start the driving device, so that the movable disc is driven to rotate, the crop to be detected is rotated, the surface of the crop to be detected is comprehensively washed to remove residual pesticide, sample liquid is generated, and the flexible cleaning brush is also rotated along the upper surface of the filter screen, so that the surface of the filter screen is cleaned;
step four, conveying: the sample liquid penetrates through the filter plate and the filter screen and falls into the collecting cylinder, and when proper sample liquid is collected in the collecting cylinder, the controller closes the first liquid pumping device and starts the second liquid pumping device, so that the sample liquid in the collecting cylinder is conveyed into the liquid collecting box;
step five, detection: and starting the detector by using the controller, acquiring the Raman spectrum of the sample liquid in the liquid collection box, calculating the pesticide residue in the sample liquid according to the acquired Raman spectrum signal and a preset pesticide standard curve, and finishing the on-line detection.
Step six, disinfection: utilize the controller to start first drawing liquid equipment, make with disinfectant in the first liquid reserve tank carry the urceolus in to disinfect to urceolus inner part, restart second drawing liquid equipment makes the antiseptic solution carry a album liquid box in, and then disinfect to a collection liquid box, and utilize the second to collect the box and retrieve disinfectant.
The invention has the beneficial effects that: the invention discloses an online pesticide residue detection device and method.
1. During sampling, the first water pump is started, then the enhancement liquid in the second liquid storage box is conveyed into the outer barrel, crops to be detected are washed, sampling operation is further realized, the second water pump is reused, the sample liquid is conveyed into the liquid collecting box, the sample liquid in the liquid collecting box is recovered by the first collecting box, during disinfection, the first water pump is started, the disinfection liquid in the first liquid storage box is conveyed into the outer barrel, internal parts of the outer barrel are disinfected, the second water pump is reused, so that the disinfection liquid is conveyed into the liquid collecting box, the liquid collecting box is disinfected, the disinfection liquid in the liquid collecting box is conveyed into the second collecting box, meanwhile, the disinfection liquid remained in the outer barrel is conveyed into the second collecting box by the connecting pipe, the disinfection liquid is recovered, the purposes of integration of sampling, detection and disinfection of the crops are achieved, and the working efficiency is improved, and the detection quality is improved.
2. Utilize the shower nozzle, wash the crops surface that awaits measuring with the reinforcing liquid, and then produce the appearance liquid, and the appearance liquid drops in the Y shape section of thick bamboo, and run through filter plate and filter screen, filter plate and filter screen this moment, can carry out dual filtration to the appearance liquid, the appearance liquid after the filtration gets into in the collection section of thick bamboo, recycle the second water pump, thereby carry the collection liquid box with the appearance liquid in the collection section of thick bamboo, recycle the Raman spectrometer, gather the Raman spectrum of appearance liquid in the collection liquid box, the pesticide residue in the sample liquid is calculated to the controller according to the Raman spectrum signal and the pesticide standard curve of presetting of gathering, reach the purpose of on-line measuring to crops surface pesticide residue short-term test, and convenient to use.
3. The crops to be detected are fixed to the upper end of the conical head block by the second inserted rod, the electric push rod is reused, the first inserted rod is inserted into the crops to be detected, the crops to be detected are tightly installed between the movable disc and the conical head block, the motor, the movable disc, the crops to be detected, the conical head block, the connecting assembly, the flexible cleaning brush and the ring are also moved downwards, the flexible cleaning brush is attached to the upper end of the filter screen, when the crops to be detected are washed and sampled, the crops to be detected can rotate by the motor, the purpose of comprehensively washing the surfaces of the crops to be detected with residual pesticides is achieved, meanwhile, the conical head block and the connecting assembly can rotate, the flexible cleaning brush rotates along the upper surface of the filter screen, the surface of the filter screen is cleaned, the phenomenon that the filter screen is blocked is effectively avoided, the generated sample liquid can normally enter the collecting cylinder, and the purpose of generating linkage effect of sampling and cleaning is achieved, the sampling efficiency is improved.
4. The round bar can be moved to a proper position along the straight cylinder in a reciprocating mode, the bolt penetrates through the through holes in the proper positions on the straight cylinder and the round bar, and therefore the round bar and the straight cylinder are fastened and mounted, the purpose of adjusting the height of the conical head block is achieved, the requirement for mounting crops with different heights is met, and the practicability is good.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram of an online pesticide residue detection device according to the present invention;
FIG. 2 is a schematic view of a sampling mechanism of an online pesticide residue detection device according to the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is an enlarged view of portion B of FIG. 2;
FIG. 5 is a schematic view of a flexible cleaning brush in an online pesticide residue detection apparatus according to the present invention;
FIG. 6 is a schematic view of a filter plate in the online pesticide residue detection device according to the present invention;
FIG. 7 is a schematic diagram of a cone block in the online pesticide residue detection apparatus according to the present invention.
In the figure: 1-a bottom plate, 2-a first liquid storage tank, 3-a second liquid storage tank, 4-a first water pump, 5-a sampling mechanism, 6-a second water pump, 7-a detector, 8-a liquid collection box, 11-a first collection box, 12-a second collection box, 13-a controller, 501-an electric push rod, 502-an outer cover, 503-a cover plate, 504-an outer barrel and 505-a nozzle, 506-Y-shaped cylinder, 507-conical cover, 508-liquid level sensor, 509-collecting cylinder, 510-filter screen, 511-flexible cleaning brush, 512-spring, 513-filter plate, 514-straight cylinder, 515-round bar, 516-motor, 517-movable disc, 518-first inserted bar, 519-second inserted bar, 520-cone block and 5111-round ring.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1-7, the present invention provides a technical solution: an online pesticide residue detection device comprises a bottom plate 1, a first liquid storage tank 2 used for storing disinfectant is fixedly connected to the left side of the upper end of the bottom plate 1, a second liquid storage tank 3 used for storing enhancement liquid is installed at the upper end of the first liquid storage tank 2, the upper end of the second liquid storage tank 3 is fixedly connected with a fixing part of first liquid pumping equipment, disinfectant of the first liquid storage tank 2 or enhancement liquid of the second liquid storage tank 3 can be conveyed into an outer barrel 504 through the first liquid pumping equipment, the first liquid pumping equipment can adopt a first water pump 4, an inlet end of the first liquid pumping equipment is respectively communicated with the first liquid storage tank 2 and the second liquid storage tank 3, a second collection box 12 used for collecting waste liquid at the lower end of the bottom plate 1 and communicated with a liquid collection box 8 through the second collection box 12 for recovering disinfected disinfectant, a connecting pipe with an electromagnetic valve is communicated and installed at the upper end of the second collection box 12, and the connecting pipe passes through the bottom plate 1 and the outer cylinder 504 and is communicated with the collecting cylinder 509, the lower end of the second collecting box 12 is provided with a first collecting box 11 for collecting waste liquid, the first collecting box 11 is communicated with the liquid collecting box 8 for collecting sample liquid, the outlet of the sampling mechanism 5 is communicated with the inlet of the second liquid pumping equipment, the second liquid pumping equipment is fixed at the upper end of the bottom plate 1, the sample liquid in the collecting cylinder 509 is conveyed into the liquid collecting box 8 through the second liquid pumping equipment, the second liquid pumping equipment can adopt a second water pump 6, the outlet of the second liquid pumping equipment is communicated with the liquid collecting box 8, and the liquid collecting box 8 is fixed at the right side of the upper end of the bottom plate 1.
Specifically, during sampling, the pipelines of the second liquid storage tank 3 and the first water pump 4 are firstly communicated, then the first water pump 4 is started, then the reinforcing liquid in the second liquid storage tank 3 is conveyed into the outer barrel 504, crops to be detected are washed, further the sampling operation is realized, then the second water pump 6 is started, so that the sample liquid is conveyed into the liquid collecting box 8, then the sample liquid in the liquid collecting box 8 is detected by the detector 7, after the completion, the pipelines of the liquid collecting box 8 and the first collecting box 11 are communicated, the sample liquid in the liquid collecting box 8 can be recycled into the first collecting box 11, so that the sample liquid is recycled, during disinfection, the pipelines of the first liquid storage tank 2 and the first water pump 4 are firstly communicated, then the first water pump 4 is started, so that the disinfectant in the first liquid storage tank 2 is conveyed into the outer barrel 504, internal components of the outer barrel 504 are disinfected, then the second water pump 6 is started, so that disinfectant is conveyed into the liquid collecting box 8, and disinfect to album liquid box 8, make the antiseptic solution in album liquid box 8 carry in the second collects box 12 again, the antiseptic solution that remains in urceolus 504 utilizes the connecting pipe to carry in the second collects box 12 simultaneously, realizes retrieving the antiseptic solution, reaches the purpose to the sampling of crops, detects, disinfection integration, promotes work efficiency, promotes detection quality.
As an embodiment of the present invention: the outlet end of the first liquid pumping device is communicated with a spray nozzle 505 arranged at the edge position of the upper side of the left wall of the outer cylinder 504, the outer cylinder 504 is fixed at the middle position of the upper end of the bottom plate 1, the upper end of the liquid collecting box 8 is provided with a detector 7 for detecting sample liquid in the liquid collecting box 8, the detector 7 is used for detecting pesticide residues on the surfaces of crops by SERS so as to realize the detection of the pesticide residues with high sensitivity, the SERS has a high-resolution fingerprint spectrum and can identify the structure of molecules, the interference of complex components on signals is reduced to the greatest extent, the detection accuracy is greatly improved, the detector 7 can adopt a Raman spectrometer, the upper edge position of the left end of the collecting cylinder 509 is provided with a liquid level sensor 508 for detecting the liquid level height, the liquid level height of the sample liquid in the collecting cylinder 509 is detected by the liquid level sensor 508, the upper end of the bottom plate 1 is fixedly connected with a controller 13 with a power supply, and the controller 13 is arranged between the first liquid storage tank 2 and the outer cylinder 504, the controller 13 is used for controlling a first liquid pumping device, a second liquid pumping device, a detector 7, a driving device, a lifting device and a liquid level sensor 508, the controller 13 is a conventional technology, the controller 13 is respectively connected with the first liquid pumping device, the second liquid pumping device, the detector 7, the driving device, the lifting device and the liquid level sensor 508, the upper end of the outer cylinder 504 is hinged with a cover plate 503, an opening of the outer cylinder 504 is sealed through the cover plate 503, the inner wall of the outer cylinder 504 is fixedly connected with a Y-shaped cylinder 506, the Y-shaped cylinder 506 is positioned at the lower side of the spray head 505, sample liquid is collected through the Y-shaped cylinder 506 on one hand, a mounting carrier is improved for the filter plate 513 and the filter screen 510 on the other hand, the filter plate 513 is fixedly connected at the middle position inside the Y-shaped cylinder 506, the filter screen 510 is mounted at the lower end of the Y-shaped cylinder 506, the filter plate 513 is matched with the filter screen 510 for use, so as to realize double filtration of the sample liquid, the inside downside installation of urceolus 504 is used for collecting the collection tube 509 of appearance liquid and collection tube 509 department under filter screen 510, through collection tube 509, can collect appearance liquid, the fixed big-end-up's of collection tube 509 upper portion intercommunication toper cover 507 and the toper cover 507 of arranging is fixed on urceolus 504 inner wall, through toper cover 507, on the one hand make be connected between collection tube 509 and the urceolus 504, on the other hand can collect the appearance liquid in the collection tube 509, Y shape section of thick bamboo 506 lower extreme sets up toper cover 507 and extends into in the toper cover 507, collection tube 509 passes through the pipeline and the installation of the import intercommunication of second drawing liquid equipment.
Specifically, the first water pump 4 is started, the enhancing liquid in the second liquid storage tank 3 is conveyed to the spray head 505, the surface of the crop to be detected clamped in the outer cylinder 504 is washed, sample liquid is generated, then the sample liquid falls into the Y-shaped cylinder 506, then the sample liquid penetrates through the filter plate 513 and the filter screen 510, at the moment, the filter plate 513 and the filter screen 510 perform double filtration on the sample liquid, then the filtered sample liquid enters the collecting cylinder 509, when the liquid level sensor 508 detects that the sample liquid in the collecting cylinder 509 reaches a proper position, a signal is transmitted to the controller 13, then the controller 13 closes the first water pump 4, the second water pump 6 is started simultaneously, so that the sample liquid in the collecting cylinder 509 is conveyed into the liquid collecting box 8, then the Raman spectrometer is started by using the controller 13, the spectrum of the sample liquid in the liquid collecting box 8 is collected, and the controller 13 collects the spectrum of the Raman spectrum according to the collected Raman spectrum signal and a preset pesticide standard curve, the pesticide residue in the sample liquid is calculated, the purpose of rapidly detecting the pesticide residue on the surface of the crops by online detection is achieved, and the use is convenient.
As an embodiment of the present invention: the upper end of the cover plate 503 is communicated with the housing 502 with the heat dissipation slot fixed, an installation space is provided for the driving device through the housing 502, the driving device is movably installed in the housing 502, the movable disc 517 is driven to rotate through the driving device, the driving device can adopt a motor 516, the upper end of the housing 502 is fixedly connected with the fixed part of the lifting device, the movable disc 517 can move up and down through the lifting device, the lifting device can adopt an electric push rod 501, the movable part of the lifting device passes through the housing 502 and is fixedly connected with the driving device, the movable part of the driving device is fixedly connected with the movable disc 517, the movable disc 517 is positioned in the housing 502, an installation carrier is provided for the first insertion rod 518 through the movable disc 517, the conical head block 520 is movably installed at the top side in the housing 504, the conical head block 520 is positioned under the movable disc 517, the installation carrier is provided for the second insertion rod 519 through the conical head block 520, a plurality of first insertion rod outer cylinders 518 are evenly installed at the middle positions of the lower ends of the movable disc 517, the upper end of a conical head block 520 is uniformly provided with a plurality of second inserted rods 519, the second inserted rods 519 are positioned under the first inserted rods 518, the lower end of the conical head block 520 is provided with a vertically arranged connecting assembly, the conical head block 520 is connected with a flexible cleaning brush 511 through the connecting assembly, the connecting assembly is arranged at the upper end of a Y-shaped cylinder 506 and extends into the Y-shaped cylinder 506, the connecting assembly penetrates through a filter plate 513 and is in sliding connection with the filter plate 513, the lower end of the connecting assembly is provided with a flexible cleaning brush 511 with a quincunx appearance, the flexible cleaning brush 511 is positioned between the filter plate 513 and the filter screen 510, the edge position of the upper end of the flexible cleaning brush 511 is rotatably connected with a circular ring 5111, the circular ring 5111 is positioned at the lower side of the filter plate 513, a mounting carrier is provided for the flexible cleaning brush 511 through the circular ring 5111, the circular ring 5111 is positioned at the outer side of the connecting assembly, a plurality of elastic elements which are arranged in a circular shape are equidistantly arranged between the circular ring 5111 and the filter plate 513, the ring 5111 can be returned to its original position by an elastic member, which may be a spring 512.
Specifically, the cover plate 503 is opened, the crop to be detected is placed on the upper end of the conical head block 520, the second plunger 519 is used for fixing the crop to be detected on the upper end of the conical head block 520, the cover plate 503 is closed, the controller 13 is used for starting the electric push rod 501, the motor 516, the movable disc 517 and the first plunger 518 move downwards, the first plunger 518 is inserted on the crop to be detected, the crop to be detected is tightly installed between the movable disc 517 and the conical head block 520, at the moment, the electric push rod 501 continues to work, the motor 516, the movable disc 517, the crop to be detected, the conical head block 520, the connecting assembly, the flexible cleaning brush 511 and the circular ring 5111 move downwards, the spring 512 is stretched, the spring 512 generates elastic force, the flexible cleaning brush 511 is attached to the upper end of the filter screen 510, the crop to be detected is washed, the motor 516 is started, and the movable disc 517 is driven to rotate, thereby it is rotatory to make the crops that await measuring, reach and to await measuring the crops surface and wash the purpose of remaining pesticide comprehensively, can make cone piece 520, coupling assembling is rotatory simultaneously, and then make flexible cleaning brush 511 rotate along filter screen 510 upper surface, thereby clear up filter screen 510 surface, effectively avoid filter screen 510 to take place blocking phenomenon, thereby in making the appearance liquid ability normal entering collection cylinder 509 of production, reach the purpose that sample and clearance produced the linkage effect, promote sampling efficiency.
As an embodiment of the present invention: the connecting assembly comprises a straight cylinder 514 which is vertically arranged at the middle position of the upper end of a flexible cleaning brush 511, the straight cylinder 514 penetrates through a filter plate 513 and is connected with the filter plate 513 in a sliding manner, the upper end of the straight cylinder 514 is connected with a round rod 515 in a sliding manner, the round rod 515 extends into the straight cylinder 514, the upper end of the round rod 515 is fixedly connected with a cone block 520, a plurality of through holes are formed in the round rod 515 at equal intervals, bolts are mounted on the upper portion of the straight cylinder 514 and penetrate through holes in the straight cylinder 514 and the round rod 515, specifically, the round rod 515 can move to a proper position along the straight cylinder 514, and then the bolts penetrate through the through holes in the straight cylinder 514 and the round rod 515 at the proper position, so that the round rod 515 and the straight cylinder 514 are fastened and mounted, the purpose of adjusting the height of the cone block 520 is achieved, the requirement of mounting crops with different heights is met, and the practicability is good.
step one, adjustment: when crops to be measured are used for main grain, taking wheat as an example, the plug pin is firstly detached, the round rod 515 is moved upwards to a proper position along the straight cylinder 514, then the plug pin penetrates through the through holes in the proper positions on the straight cylinder 514 and the round rod 515, and the height of the conical head block 520 is further adjusted;
step two, assembling: the cover plate 503 is opened, wheat is placed on the upper end of the second insertion rod 519, the cover plate 503 is closed, the controller 13 is used for starting the electric push rod 501, the motor 516, the movable disc 517 and the first insertion rod 518 move downwards, the first insertion rod 518 and the second insertion rod 519 are used for fastening and mounting the wheat, the conical head block 520, the round rod 515, the straight cylinder 514, the flexible cleaning brush 511 and the round ring 5111 move downwards, the spring 512 is stretched, and the flexible cleaning brush 511 is attached to the upper end of the filter screen 510.
Step three, sampling: utilize controller 13 to start first water pump 4 to carry the shower nozzle 505 with reinforcing liquid in the second liquid reserve tank 3 on, and spray to the wheat surface, utilize controller 13 starter motor 516 simultaneously, and then it is rotatory to drive movable disc 517, thereby make the wheat rotatory, thereby wash remaining pesticide comprehensively to the wheat surface, and then produce appearance liquid, also make flexible cleaning brush 511 rotate along filter screen 510 upper surface, thereby clear up filter screen 510 surface.
Step four, conveying: the sample liquid penetrates through the filter plate 513 and the filter screen 510 and falls into the collection cylinder 509, and when the appropriate sample liquid is collected in the collection cylinder 509, the controller 13 turns off the first water pump 4 and starts the second water pump 6, so that the sample liquid in the collection cylinder 509 is conveyed into the liquid collection box 8.
Step five, detection: and starting the detector 7 by using the controller 13, collecting the Raman spectrum of the sample liquid in the liquid collection box 8, calculating the pesticide residue in the sample liquid according to the collected Raman spectrum signal and a preset pesticide standard curve, and finishing the on-line detection.
Step six, disinfection: utilize controller 13 to start first water pump 4, make with disinfectant in first liquid reserve tank 2 carry urceolus 504 in to disinfect to urceolus 504 inner part, restart second water pump 6 makes the disinfectant carry a liquid collecting box 8 in, and then disinfect a liquid collecting box 8, and utilize the second to collect box 12 and retrieve the disinfectant.
step one, adjustment: when crops to be measured are used for main grain, taking corn as an example, the plug pin is firstly detached, the round rod 515 is moved downwards to a proper position along the straight cylinder 514, and then the plug pin penetrates through the through holes in the proper positions on the straight cylinder 514 and the round rod 515, so that the height of the conical head block 520 is adjusted.
Step two, assembling: the cover plate 503 is opened, one end of the corn is inserted into the second insertion rod 519, the cover plate 503 is closed, the controller 13 is used for starting the electric push rod 501, the motor 516, the movable disc 517 and the first insertion rod 518 move downwards, the first insertion rod 518 inserts the other end of the corn, the first insertion rod 518 and the second insertion rod 519 are used for fastening and mounting the corn, the conical head block 520, the round rod 515, the straight cylinder 514, the flexible cleaning brush 511 and the ring 5111 move downwards, the spring 512 is stretched, and the flexible cleaning brush 511 is attached to the upper end of the filter screen 510.
Step three, sampling: utilize controller 13 to start first water pump 4 to carry the shower nozzle 505 with reinforcing liquid in the second liquid reserve tank 3 on, and spray to the maize surface, utilize controller 13 starter motor 516 simultaneously, and then it is rotatory to drive activity dish 517, thereby make the maize rotatory, thereby wash remaining pesticide comprehensively to the maize surface, and then produce appearance liquid, also make flexible cleaning brush 511 rotate along filter screen 510 upper surface, thereby clear up filter screen 510 surface.
Step four, conveying: the sample liquid penetrates through the filter plate 513 and the filter screen 510 and falls into the collection cylinder 509, and when the appropriate sample liquid is collected in the collection cylinder 509, the controller 13 turns off the first water pump 4 and starts the second water pump 6, so that the sample liquid in the collection cylinder 509 is conveyed into the liquid collection box 8.
Step five, detection: and starting the detector 7 by using the controller 13, collecting the Raman spectrum of the sample liquid in the liquid collection box 8, calculating the pesticide residue in the sample liquid according to the collected Raman spectrum signal and a preset pesticide standard curve, and finishing the on-line detection.
Step six, disinfection: utilize controller 13 to start first water pump 4, make with disinfectant in first liquid reserve tank 2 carry urceolus 504 in to disinfect to urceolus 504 inner part, restart second water pump 6 makes the disinfectant carry a liquid collecting box 8 in, and then disinfect a liquid collecting box 8, and utilize the second to collect box 12 and retrieve the disinfectant.
The present description is described in terms of embodiments, but not every embodiment includes only a single embodiment, and such descriptions are provided for clarity only, and those skilled in the art should be able to integrate the description, and the embodiments can be combined appropriately to form other embodiments as will be understood by those skilled in the art.
Claims (10)
1. The utility model provides an online pesticide residue detection device which characterized in that: comprises a bottom plate (1), a first liquid storage tank (2) used for storing disinfectant is fixedly connected with the left side of the upper end of the bottom plate (1), a second liquid storage tank (3) used for storing enhancement liquid is installed at the upper end of the first liquid storage tank (2), the upper end of the second liquid storage tank (3) is fixedly connected with the fixed part of first liquid pumping equipment, the inlet end of the first liquid pumping equipment is respectively communicated with the first liquid storage tank (2) and the second liquid storage tank (3), the outlet end of the first liquid pumping equipment is communicated with the inlet end of a sampling mechanism (5) and installed, the sampling mechanism (5) is fixed at the middle position of the upper end of the bottom plate (1), the outlet of the sampling mechanism (5) is communicated with the inlet of the second liquid pumping equipment and installed, the second liquid pumping equipment is fixed at the upper end of the bottom plate (1), the outlet of the second liquid pumping equipment is communicated with a liquid collecting box (8) and installed, and the liquid collecting box (8) is fixed at the right side of the upper end of the bottom plate (1), and the upper end of the liquid collecting box (8) is provided with a detector (7) for detecting sample liquid in the liquid collecting box (8).
2. The online pesticide residue detection device according to claim 1, characterized in that: sampling mechanism (5) are including fixing urceolus (504) in bottom plate (1) upper end, urceolus (504) upper end is articulated to be provided with apron (503), urceolus (504) left side wall upper side border position installation shower nozzle (505) and shower nozzle (505) are arranged with the import intercommunication of first drawing liquid equipment, urceolus (504) inner wall fixed connection Y shape section of thick bamboo (506) and Y shape section of thick bamboo (506) are in shower nozzle (505) downside, the inside intermediate position fixed connection filter plate (513) of Y shape section of thick bamboo (506), filter screen (510) are installed to Y shape section of thick bamboo (506) lower extreme, collection cylinder (509) and collection cylinder (509) that the inside downside installation of urceolus (504) is used for collecting sample liquid are under filter screen (510), collection cylinder (509) are through the import intercommunication installation of pipeline with second drawing liquid equipment.
3. The online pesticide residue detection device according to claim 2, characterized in that: the upper part of the collecting cylinder (509) is communicated and fixed with a conical cover (507) which is arranged in a large-small mode, the conical cover (507) is fixed on the inner wall of the outer cylinder (504), and the lower end of the Y-shaped cylinder (506) is provided with the conical cover (507) and extends into the conical cover (507).
4. The online pesticide residue detection device according to claim 2, characterized in that: apron (503) upper end intercommunication fixed band radiating groove's dustcoat (502), the inside movable mounting drive arrangement of dustcoat (502), dustcoat (502) upper end fixed connection jacking equipment's fixed part, jacking equipment's movable part pass dustcoat (502) and with drive arrangement fixed connection, drive arrangement's movable part fixed connection movable disc (517) and movable disc (517) are in dustcoat (502), urceolus (504) inside top side movable mounting awl head piece (520) and awl head piece (520) are in under movable disc (517), the coupling assembling of vertical arrangement is installed to awl head piece (520) lower extreme, coupling assembling sets up in Y shape section of thick bamboo (506) upper end and extends into Y shape section of thick bamboo (506), coupling assembling runs through filter plate (513) and with filter plate (513) sliding connection, coupling assembling lower extreme installation outward appearance is flexible cleaning brush (511) and the filter plate (513) and filter screen (513) of quincuncial (510) In the meantime.
5. The online pesticide residue detection device according to claim 4, characterized in that: the flexible cleaning brush is characterized in that the edge position of the upper end of the flexible cleaning brush (511) is rotatably connected with a circular ring (5111) and the circular ring (5111) is positioned on the lower side of the filter plate (513), the circular ring (5111) is positioned on the outer side of the connecting assembly, and a plurality of elastic pieces which are circularly arranged are equidistantly arranged between the circular ring (5111) and the filter plate (513).
6. The online pesticide residue detection device according to claim 4, characterized in that: coupling assembling is including fixing straight section of thick bamboo (514) at flexible cleaning brush (511) upper end intermediate position vertical arrangement, straight section of thick bamboo (514) run through filter plate (513) and with filter plate (513) sliding connection, straight section of thick bamboo (514) upper end sliding connection round bar (515) and round bar (515) extend into straight section of thick bamboo (514) inside, round bar (515) upper end fixed connection conical head piece (520), a plurality of through-holes are seted up to equidistance on round bar (515), straight section of thick bamboo (514) upper portion installation bolt and bolt run through the through-hole on straight section of thick bamboo (514) and round bar (515).
7. The online pesticide residue detection device according to claim 4, characterized in that: a plurality of first inserted bars (518) are evenly installed to activity dish (517) lower extreme middle part position, awl head piece (520) upper end evenly sets up a plurality of second inserted bars (519) and second inserted bar (519) are in under first inserted bar (518).
8. The online pesticide residue detection device according to claim 4, characterized in that: the liquid level sensor (508) that is used for detecting the liquid level height is installed to collection section of thick bamboo (509) left end upper side edge position, bottom plate (1) upper end fixed connection has controller (13) and controller (13) of power to be in between first liquid reserve tank (2) and urceolus (504), controller (13) respectively with first equipment of drawing liquid, second equipment of drawing liquid, detector (7), drive arrangement, jacking equipment and liquid level sensor (508).
9. The online pesticide residue detection device according to claim 4, characterized in that: the utility model discloses a waste liquid collecting device, including bottom plate (1), connecting pipe, bottom plate (12) lower extreme are used for collecting the second of waste liquid and collect box (12) and second and collect box (8) intercommunication and arrange, the connecting pipe of taking the solenoid valve is collected to second collection box (12) upper end intercommunication installation, and the connecting pipe passes bottom plate (1) and urceolus (504) and with collection section of thick bamboo (509) intercommunication, the installation of second collection box (12) lower extreme is used for collecting first collection box (11) and the intercommunication of collection liquid box (8) of waste liquid and arranges.
10. The on-line pesticide residue detection method as claimed in claims 1-9, wherein:
step one, adjustment: according to the height of crops to be measured, firstly, a plug pin is detached, the round rod (515) moves up and down to a proper position along the straight cylinder (514), then the plug pin penetrates through the straight cylinder (514) and a through hole in the proper position on the round rod (515), and further the height of the conical head block (520) is adjusted;
step two, assembling: opening a cover plate (503), installing crops to be detected at the upper end of a cone head block (520) by using a second insertion rod (519), closing the cover plate (503), starting a lifting device by using a controller (13), enabling a driving device, a movable disc (517) and a first insertion rod (518) to move downwards, and installing the first insertion rod (518) on the crops to be detected, further fastening and installing the crops to be detected, and enabling the cone head block (520), a round rod (515), a straight cylinder (514), a flexible cleaning brush (511) and a circular ring (5111) to move downwards, so that an elastic part is stretched, and the flexible cleaning brush (511) is attached to the upper end of a filter screen (510);
step three, sampling: starting a first liquid pumping device by using a controller (13), so that the enhancement liquid in the second liquid storage tank (3) is conveyed to a spray head (505) and sprayed to the surface of the crop to be detected, and simultaneously starting a driving device by using the controller (13) so as to drive a movable disc (517) to rotate, so that the crop to be detected rotates, so that the surface of the crop to be detected is comprehensively washed to remove residual pesticide, so that sample liquid is generated, and a flexible cleaning brush (511) can also rotate along the upper surface of a filter screen (510), so that the surface of the filter screen (510) is cleaned;
step four, conveying: the sample liquid penetrates through the filter plate (513) and the filter screen (510) and falls into the collecting cylinder (509), and after proper sample liquid is collected in the collecting cylinder (509), the controller (13) closes the first liquid pumping device and starts the second liquid pumping device, so that the sample liquid in the collecting cylinder (509) is conveyed into the liquid collecting box (8);
step five, detection: and starting the detector (7) by using the controller (13), collecting the Raman spectrum of the sample liquid in the liquid collecting box (8), calculating the pesticide residue in the sample liquid according to the collected Raman spectrum signal and a preset pesticide standard curve, and finishing the on-line detection.
Step six, disinfection: the controller (13) is utilized to start the first liquid pumping equipment, disinfectant in the first liquid storage tank (2) is conveyed into the outer barrel (504), so that internal parts of the outer barrel (504) are disinfected, the second liquid pumping equipment is started again, the disinfectant is conveyed into the liquid collecting box (8), the liquid collecting box (8) is further disinfected, and the second collecting box (12) is utilized to recover the disinfectant.
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