CN110907443A - Pesticide residue detector - Google Patents
Pesticide residue detector Download PDFInfo
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- CN110907443A CN110907443A CN201911235306.4A CN201911235306A CN110907443A CN 110907443 A CN110907443 A CN 110907443A CN 201911235306 A CN201911235306 A CN 201911235306A CN 110907443 A CN110907443 A CN 110907443A
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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
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
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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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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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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- 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
- G01N1/38—Diluting, dispersing or mixing samples
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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
- G01N1/38—Diluting, dispersing or mixing samples
- G01N2001/386—Other diluting or mixing processes
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Abstract
The invention relates to the technical field of detection equipment, in particular to a pesticide residue detector which comprises a pretreatment box, a sample measuring assembly and a base, wherein a mixing tank and a crushing tank are arranged in the pretreatment box; mixing tank and sampling tube through connection are provided with the water pump on the runner pipe, are provided with first three-way valve on the runner pipe between water pump and the mixing tank, and first three-way valve and crushing tank through connection are provided with the second filter screen in crushing the inslot, are provided with the second grinder on the second filter screen, and crushing tank and mixing tank through connection are provided with the washing connector on the lateral wall of preliminary treatment case. The invention not only realizes the detection of the pesticide, but also realizes the pretreatment before the detection of the pesticide, and can clean the pesticide residue detector and carry out multiple detections by a simple method.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to a pesticide residue detector.
Background
China is the first pesticide using and producing countries in the world, wherein organophosphorus and carbamate pesticides account for 70% of high-toxicity varieties, and the pesticide residue in important edible vegetables and fruits in China is very serious. Meanwhile, the pesticide also causes serious pollution to the ecological environment such as water, soil and the like.
The pesticide residue detector in the prior art detects the pesticide residue eluent, but for field detection, vegetables, fruits or tea leaves are firstly crushed, then mixed with the pesticide residue eluent, kept stand for 3 minutes, then the eluent with dissolved pesticide is collected, and then detection operation is carried out, so that the pretreatment operation is complex, and the detection is complicated.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention aims to provide a pesticide residue detector, which not only realizes on-site detection of pesticide, but also realizes on-site pretreatment before pesticide detection, and after pretreatment, the pesticide residue detector can be cleaned by a simple method and then detected next time.
In order to solve the technical problems, the invention adopts the following technical scheme:
a pesticide residue detector comprises a pretreatment box, a sample measuring assembly and a base, wherein the sample measuring assembly is arranged at the top of the pretreatment box, and the base is positioned at the bottom of the pretreatment box;
a mixing tank and a crushing tank are arranged in the pretreatment tank, an opening is further formed in the side wall of the pretreatment tank, a sampling pipe is arranged in the opening, a first filter screen is arranged in the sampling pipe, and a first crusher is arranged on the first filter screen; the mixing tank is communicated with the sampling pipe through a circulating pipe, a water pump is arranged on the circulating pipe, a first three-way valve is arranged on the circulating pipe between the water pump and the mixing tank, the first three-way valve is communicated with the crushing tank through a connecting pipe, the crushing tank is funnel-shaped, a second filter screen is arranged in the crushing tank, a second crusher is arranged on the second filter screen, the crushing tank is communicated with the mixing tank through a guide vane pipe, a cleaning connecting port is arranged on the side wall of the pretreatment tank, the cleaning connecting port is communicated with the mixing tank through a water guide pipe, a second three-way valve is arranged on the water guide pipe, the second three-way valve is communicated with the crushing tank, and the extending end of the water guide pipe is higher than the crushing tank;
a solvent port for adding a solvent is further formed in the side wall of the pretreatment tank, the solvent port penetrates through the side walls of the pretreatment tank and the mixing tank and extends into the mixing tank, and a valve is arranged on the solvent port located on the outer side of the pretreatment tank; be provided with thief hole and outlet on the lateral wall of mixing tank, be provided with the charge door on the lateral wall of crushing tank, on the preliminary treatment case, with the thief hole the outlet reaches the position setting that the charge door corresponds is provided with the door that opens and shuts respectively.
Preferably, first grinder includes first motor and crushing blade, first motor set up in on the first filter screen, the output shaft of first motor is run through from right left first filter screen, and fixedly connected with is three and is the distribution of triangle taper crushing blade on the output shaft, the structure of second grinder with the structure of first grinder is the same.
Preferably, a connecting rod for stabilizing the mixing tank is further provided in the pretreatment tank.
Preferably, the interior bottom of mixing tank is provided with the balance dish, the top of mixing tank is provided with the second motor, the output shaft of second motor runs through the roof of mixing tank and to extend in the mixing tank, and the tip of the output shaft of second motor is provided with the stirring rake.
Preferably, the bottom of the scale pan is provided with a pressure sensor, the base is provided with a display screen and a battery box, a battery pack is arranged in the battery box, the base is internally provided with a controller, the controller is electrically connected with the first motor, the second motor, the water pump, the pressure sensor and the display screen, and the controller is electrically connected with the battery pack arranged in the battery box.
Preferably, the survey appearance subassembly is including surveying the appearance case, the interior bottom of survey appearance case is provided with the pivot, it is connected with the test strip to rotate in the pivot, is located survey the bottom of appearance case, with be provided with on the corresponding lateral wall of pivot and be used for placing the switch door of test strip, the top of survey appearance case is provided with the export of test strip, the top inboard that detects the export of test strip is provided with tooth, be provided with a plurality of viewing apertures on the survey appearance case, it is used for making still to be provided with in the appearance case detect the strip and keep stable depression bar.
Preferably, the detection strip comprises a bottom plate and a top plate, a separation film is arranged in an interlayer between the bottom plate and the top plate, a plurality of grooves are formed in the bottom plate and the top plate, each groove in the top plate is coated with acetylcholinesterase, the concentration of the acetylcholinesterase gradually increases progressively according to the sequence of the grooves in the top plate, each groove in the top plate is provided with a sample adding hole, each groove in the bottom plate is coated with indoxyl acetate, and the grooves in the top plate correspond to the grooves in the bottom plate.
Preferably, the sample box is further hinged with a cover body for keeping the detection strips dry.
Preferably, the sample measuring box is further provided with a handle.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention is provided with the pretreatment box and the sample measuring assembly, the pretreatment box enables vegetables, fruits or tea leaves to be detected to be crushed and dissolved in pesticide residue eluent, the vegetables, fruits or tea leaves do not need to be crushed manually by the prior art, and then the crushed vegetables, fruits or tea leaves are mixed with the pesticide residue eluent for waiting and other operations, so that the crushing and mixing can be realized through the operation panel; to fruit, can place fruit on the sampling tube to inlay the sampling tube in fruit, then smash and sample through first grinder, need not to spray the incomplete eluant of farming on the surface of fruit, realized fast operation.
(2) The invention is also provided with a sample measuring component, the sample measuring component develops color through the reaction of acetylcholinesterase and indoxyl acetate, the sample presents indigo under the condition of lower concentration of pesticide, and presents white under the condition of higher concentration of pesticide, the invention is also provided with a plurality of acetylcholinesterase with different concentrations, and the concentration of pesticide is deduced through the shade of color.
(3) The pesticide residue detector is a small instrument, is convenient to carry, and is convenient to detect pesticide residues at any time and any place.
Drawings
FIG. 1 is a schematic view of the internal structure of a pretreatment tank of a pesticide residue detector according to the present invention;
FIG. 2 is a schematic diagram of an internal structure of a sample measuring assembly of the pesticide residue detector according to the present invention;
FIG. 3 is a schematic diagram of an external structure of a pesticide residue detector according to the present invention;
FIG. 4 is a side view of a test strip of a pesticide residue detector of the present invention;
FIG. 5 is a top view of a sample measuring box of the pesticide residue detector of the present invention;
FIG. 6 is a schematic diagram showing the external structure of a pretreatment tank of the pesticide residue detector according to the present invention.
Description of reference numerals:
1. a pretreatment tank; 2. a sample measuring assembly; 3. a base; 4. a mixing tank; 5. a crushing tank; 6. a sampling tube; 7. a first filter screen; 8. a flow-through tube; 9. a water pump; 10. a first three-way valve; 11. a connecting pipe; 12. a second filter screen; 13. a second shredder; 14. a guide vane pipe; 15. cleaning a connecting port; 16. a water conduit; 17. a second three-way valve; 18. a solvent port; 19. a first motor; 20. a crushing blade; 21. a connecting rod; 22. a sample measuring box; 23. a rotating shaft; 24. a test strip; 25. opening and closing the door; 26. a test strip outlet; 27. a viewing port; 28. a pressure lever; 29. a base plate; 30. a top plate; 31. a pan is weighed; 32. a second motor; 33. a stirring paddle; 34. a pressure sensor; 35. a display screen; 36. a battery case; 37. a controller; 38. a sampling hole; 39. a feed inlet; 40. opening and closing the door; 41. separating the membrane; 42. a sample application hole; 43. and a water outlet.
Detailed Description
The following description of the preferred embodiments and accompanying fig. 1-6 are used in conjunction with the accompanying drawings in the embodiments of the invention to illustrate the preferred embodiments.
The utility model provides a pesticide residue detector, includes pretreatment tank 1, surveys appearance subassembly 2 and base 3, pretreatment tank 1's top is provided with survey appearance subassembly 2, base 3 is located pretreatment tank 1's bottom, pretreatment tank 1 carries out the preliminary treatment to the vegetables, fruit or the tealeaves that await measuring for vegetables, fruit or tealeaves that await measuring can smash and dissolve in the incomplete eluant of farming in pretreatment tank 1, and with the incomplete eluant intensive mixing of farming, the mixed liquid that obtains carry out the sign can, survey appearance subassembly 2 and be used for detecting the incomplete farming in the mixed liquid.
The pretreatment tank 1 is internally provided with a mixing tank 4 and a crushing tank 5, the mixing tank 4 is used for mixing crushed vegetables, fruits or tea leaves to be detected with pesticide residue eluent, the crushing tank 5 is used for crushing the tea leaves and the vegetables, the side wall of the pretreatment tank 1 is also provided with an opening, a sampling pipe 6 is arranged in the opening, a first filter screen 7 is arranged in the sampling pipe 6, a first crusher is arranged on the first filter screen 7 and used for crushing the fruits, one part of the fruits is embedded into the sampling pipe 6 and is crushed by the first crusher, and a cover body used for keeping the first crusher sanitary is further arranged on the sampling pipe 6; the mixing tank 4 is connected with the sampling pipe 6 through a flow pipe 8 in a through manner, the flow pipe 8 is used for guiding the crushed fruit juice into the mixing tank 4, a water pump 9 is arranged on the flow pipe 8, the water pump 9 is convenient for guiding the fruit juice into the mixing tank 4, a first three-way valve 10 is arranged on the flow pipe 8 between the water pump 9 and the mixing tank 4, the first three-way valve 10 is connected with the crushing tank 5 through a connecting pipe 11 in a through manner, the first three-way valve 10 is used for connecting the connecting pipe 11 between the flow pipes 8, the residual large impurities left after crushing in the crushing tank 5 enter the mixing tank 4 through the connecting pipe 11, the crushing tank 5 is funnel-shaped, the simply crushed tea leaves or vegetable fragments can enter the mixing tank 4 conveniently, a second filter screen 12 is arranged in the crushing tank 5, and the second filter screen 12 is used for separating the tea leaves and vegetable fragments with large volume, be provided with second grinder 13 on the second filter screen 12, second grinder 13 is used for slightly smashing the great tealeaves of volume or vegetables to smash into the less piece of volume, smash the groove 5 with mixing tank 4 is through leading leaf pipe 14 through-going connection, tealeaves or vegetables piece get into to mixing tank 4 in via leading leaf pipe 14, be provided with on the lateral wall of preliminary treatment case 1 and wash connector 15, wash connector 15 and sampling tube 6 and all can connect water supply equipment such as tap, wash connector 15 with mixing tank 4 passes through aqueduct 16 through-going connection, carry out abluent clear water to preliminary treatment case 1 and enter into mixing tank 4 via aqueduct 16, be provided with second three-way valve 17 on aqueduct 16, second three-way valve 17 with smash groove 5 through-going through to be connected, the part clear water that washs preliminary treatment case 1 enters into to smashing the inslot 5 via second three-way valve 17, the water enters the mixing tank 4 through the connecting pipe 11, and the height of the extending end of the water guide pipe 16 is higher than that of the crushing tank 5, so that the clean water can flow into the crushing tank 5 conveniently; the pretreatment tank 1 is also internally provided with a connecting rod 21 for keeping the mixing tank 4 stable, one end of the connecting rod 21 is fixedly connected with the inner wall of the pretreatment tank 1, and the other end is fixedly connected with the mixing tank 4. First grinder includes first motor 19 and crushing blade 20, first motor 20 set up in on the first filter screen 7, first motor 19's output shaft runs through from right to left first filter screen 7, and fixedly connected with is three on the output shaft and is the distribution of triangle-shaped toper crushing blade 20, 19 operation backs at first motor, and the output shaft on the first motor 19 takes place to rotate, drives crushing blade 20 and rotates to smash fruit through crushing blade 20, second grinder 13's structure with first grinder's structure is the same, carries out simple crushing to vegetables or tealeaves through second grinder 13.
A solvent port 18 for adding a solvent is further formed in the side wall of the pretreatment tank 1, the solvent is pesticide residue eluent, after vegetables, fruits or tea leaves to be tested are dissolved in the pesticide residue eluent, the mixed liquid is detected, the solvent port 18 penetrates through the side walls of the pretreatment tank 1 and the mixing tank 4 and extends into the mixing tank 4, and a valve or a cover body is arranged on the solvent port 18 located on the outer side of the pretreatment tank 1; be provided with thief hole 38 and outlet 43 on the lateral wall of mixing tank 4, thief hole 38 is used for the capillary to stretch into and take a sample, and the outlet is used for carrying out abluent sewage discharge to pretreatment tank 1, is provided with the lid on outlet 43, be provided with charge door 39 on crushing tank 5's the lateral wall, add tealeaves or vegetables in to crushing tank 5 through charge door 39, on pretreatment tank 1, with thief hole 38 outlet 43 reaches the position that charge door 39 corresponds is provided with respectively and opens and shuts door 40, and it is convenient for reinforced, sample and drainage to open and shut door 40.
The interior bottom of mixing tank 4 is provided with the title dish 31, the top of mixing tank 4 is provided with second motor 32, the output shaft of second motor 32 runs through the roof of mixing tank 4 and to extend in the mixing tank 4, and the tip of the output shaft of second motor 32 is provided with stirring rake 33, and the rotation takes place for the output shaft after second motor 32 operation, and the output shaft of second motor 32 drives stirring rake 33 this moment and takes place to rotate, and stirring rake 33 has realized the mixing of incomplete eluant of farming with fruit, tealeaves or vegetables after smashing.
The bottom of the scale pan 31 is provided with a pressure sensor 34, the pressure sensor 34 is used for sensing the pressure on the scale pan 31 and displaying the numerical value on the scale pan 31 on a display screen 35, the base 3 is provided with the display screen 35 and a battery box 36, a battery pack is arranged in the battery box 36 and supplies power to an electric appliance, a controller 37 is arranged in the base 3, the controller 37 is electrically connected with the first motor 19, the second motor 32, the water pump 9, the pressure sensor 34 and the display screen 35, and the controller 37 is electrically connected with the battery pack arranged in the battery box 36.
The sample measuring assembly 1 comprises a sample measuring box 22, a rotating shaft 23 is arranged at the inner bottom of the sample measuring box 22, a detection strip 24 is rotatably connected to the rotating shaft 23, the detection strip 24 is horizontally sleeved on the rotating shaft 23, when the detection strip 24 is pulled, the rotating shaft 23 rotates, a switch door 25 is arranged on the bottom of the sample measuring box 22 and a side wall corresponding to the rotating shaft 23, the detection strip 24 is sleeved on the rotating shaft 23 after the switch door 25 is opened, a detection strip outlet 26 is arranged at the top of the sample measuring box 22, one end of the detection strip 24 can extend out through the detection strip outlet 26, teeth are arranged on the detection strip outlet 26, the detection strip 24 which is failed after detection is torn off by the teeth, a plurality of observation ports 27 are arranged on the sample measuring box 22, the observation ports 27 are convenient for observing color reaction on the detection strip 24, and a pressure lever 28 for keeping the detection strip 24 stable is further arranged in the sample measuring box 22, stabilization of the test strip 24 is achieved. The sample measuring box 22 is also hinged with a cover body for keeping the detection strip 24 dry, so that the detection of pesticide residues by the detection strip 24 is prevented from being influenced by moisture in the air; the sample measuring box 22 is also provided with a handle, so that the sample measuring box is convenient to carry and is convenient for detecting pesticide residues at any time and any place.
The detection strip 24 comprises a bottom plate 29 and a top plate 30, the top plate 30 is positioned at the top of the bottom plate 29, a separation film 41 is arranged in an interlayer between the bottom plate 29 and the top plate 30, a plurality of grooves are formed in the bottom plate 29 and the top plate 30, acetylcholinesterase is coated in each groove positioned in the top plate 30, indoxyl acetate is coated in each groove positioned in the bottom plate 29, the separation film 41 is used for separating the indoxyl acetate respectively positioned in the groove of the bottom plate 29 from the acetylcholinesterase in the groove of the top plate 30, a sample adding hole 42 is formed in the bottom of each groove positioned in the top plate 30, the sample adding holes 42 are used for adding detection samples, the grooves positioned in the top plate 30 correspond to the grooves positioned in the bottom plate 29, the acetylcholinesterase can decompose the indoxyl acetate, and the decomposed samples are oxidized under the action of oxygen in the air, the indocyanine pesticide has the advantages that the indoxyl acetate is indigo, and if the concentration of the pesticide is high, the activity of the acetylcholinesterase is inhibited by the pesticide, so that the indoxyl acetate cannot be decomposed by the acetylcholinesterase, the color is white, and the heavier the color is, the lower the content of the pesticide is, and the concentration of the pesticide can be distinguished by observing the color after reaction by naked eyes; the concentration of acetylcholinesterase gradually increases according to the recess order on the roof 30, can drop simultaneously on the measuring strip 24 of different concentrations the mixed liquid, then observe the colour on different measuring strips 24, if be white then the content of pesticide is high, if be indigo then the concentration of pesticide is low, through observing the colour under the different concentrations to infer the content of pesticide.
When the fruit juice sampler is used, if fruits are detected, the fruits are embedded into the sampling pipe 6, the first motor 19 and the water pump 9 are enabled to run, at the moment, crushed fruit juice enters the mixing tank 4 through the circulating pipe 8, then the numerical value on the display screen 35 is observed, after the numerical value is reached, the fruits are pulled out from the sampling pipe 6, the first motor 19 and the water pump 9 are closed, then quantitative pesticide residue eluent is added into the mixing tank 4 through the solvent port 18, at the moment, the second motor 32 is opened, the second motor 32 is closed after stirring for a certain time, then the capillary tubes extend into the sampling holes 38 to be sampled, after the sampling is finished, the mixed liquid in the capillary tubes is respectively dripped onto the sampling holes 42, then the separation membrane between the bottom plate 29 and the top plate 30 is taken down, the detection is carried out, and the color in the corresponding grooves between the bottom plate 29 and the top plate 30 is observed during the detection, therefore, the heavier the color is, the lower the content of the pesticide is, so that the concentration of the pesticide can be distinguished by observing the color after reaction by naked eyes, the concentration of acetylcholinesterase is gradually increased in sequence, the mixed solution can be simultaneously dripped on the detection strips 24 with different concentrations, then the colors on different detection strips 24 are observed, if the mixed solution is white, the content of the pesticide is high, if the mixed solution is indigo, the concentration of the pesticide is low, and the content of the pesticide is deduced by observing the colors under different concentrations; after the detection is finished, large impurities in the sampling pipe 6 are removed, the sampling pipe 6 is communicated with a tap water pipe, then the tap water and the water pump 9 are opened, the cover body on the water outlet 43 is taken down and is connected with a water discharge pipe, and the pretreatment tank 1 can be cleaned.
When the invention is used, if tea or vegetables are detected, the opening and closing door 40 and the feeding port 39 are opened, the vegetables or the tea are added into the crushing tank 5 through the feeding port 39, then the vegetables or the tea are simply crushed through the second crusher 13, the fragments of the vegetables or the tea enter the mixing tank 4 after being filtered by the second filter screen 12, then a certain amount of pesticide residue eluent is added into the mixing tank 4 through the solvent port 18, at the moment, the second motor 32 is opened, the second motor 32 is closed after being stirred for a certain time, then the capillary tube extends into the sampling hole 38 and is sampled, the detection is carried out after the sampling is finished, the detection method is the same as the detection method of fruits, after the detection is finished, the water guide tube 16 is connected with a water tap, the cover body on the water discharge port 43 is taken down, and the water discharge tube is connected with the water discharge pipe, so that the cleaning of the pretreatment tank 1 can be realized.
After the cleaning is finished, the detection of the next food material can be carried out.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The pesticide residue detector is characterized by comprising a pretreatment box (1), a sample measuring assembly (2) and a base (3), wherein the sample measuring assembly (2) is arranged at the top of the pretreatment box (1), and the base (3) is positioned at the bottom of the pretreatment box (1);
a mixing tank (4) and a crushing tank (5) are arranged in the pretreatment tank (1), an opening is further formed in the side wall of the pretreatment tank (1), a sampling pipe (6) is arranged in the opening, a first filter screen (7) is arranged in the sampling pipe (6), and a first crusher is arranged on the first filter screen (7); the mixing tank (4) is connected with the sampling pipe (6) through a runner pipe (8), a water pump (9) is arranged on the runner pipe (8), the water pump (9) is connected with the runner pipe (8) between the mixing tank (4) through a first three-way valve (10), the first three-way valve (10) is connected with the crushing tank (5) through a connecting pipe (11), the crushing tank (5) is funnel-shaped, a second filter screen (12) is arranged in the crushing tank (5), a second crusher (13) is arranged on the second filter screen (12), the crushing tank (5) is connected with the mixing tank (4) through a guide vane pipe (14), a cleaning connecting port (15) is arranged on the side wall of the pretreatment tank (1), the cleaning connecting port (15) is connected with the mixing tank (4) through a guide vane pipe (16), a second three-way valve (17) is arranged on the water guide pipe (16), the second three-way valve is communicated with the crushing groove (5), and the extending end of the water guide pipe (16) is higher than the crushing groove (5);
a solvent port (18) for adding a solvent is further arranged on the side wall of the pretreatment tank (1), and the solvent port (18) penetrates through the side walls of the pretreatment tank (1) and the mixing tank (4) and extends into the mixing tank (4); be provided with thief hole (38) and outlet (43) on the lateral wall of mixing tank (4), be provided with charge door (39) on the lateral wall of crushing tank (5), on preliminary treatment case (1), with thief hole (38) outlet (43) and the position that charge door (39) correspond is provided with door (40) that opens and shuts respectively.
2. The pesticide residue detector according to claim 1, wherein the first pulverizator comprises a first motor (19) and a pulverizing blade (20), the first motor (19) is disposed on the first filter screen (7), an output shaft of the first motor (19) penetrates through the first filter screen (7) from right to left, three pulverizing blades (20) distributed in a triangular conical shape are fixedly connected to the output shaft, and the structure of the second pulverizator (13) is the same as that of the first pulverizator.
3. A pesticide residue detector according to claim 1, characterized in that a connecting rod (21) for stabilizing the mixing tank (4) is further arranged in the pretreatment tank (1).
4. The pesticide residue detector according to claim 1, characterized in that the inner bottom of the mixing tank (4) is provided with a weighing plate (31), the top of the mixing tank (4) is provided with a second motor (32), the output shaft of the second motor (32) penetrates through the top wall of the mixing tank (4) and extends into the mixing tank (4), and the end of the output shaft of the second motor (32) is provided with a stirring paddle (33).
5. The pesticide residue detector according to claim 4, wherein the bottom of the scale (31) is provided with a pressure sensor (34), the base (3) is provided with a display screen (35) and a battery box (36), the battery box (36) is internally provided with a battery pack, the base (3) is internally provided with a controller (37), the controller (37) is electrically connected with the first motor (19), the second motor (32), the water pump (9), the pressure sensor (34) and the display screen (35), and the controller (37) is electrically connected with the battery pack arranged in the battery box (36).
6. The pesticide residue detector of claim 1, wherein the sample measuring assembly (1) comprises a sample measuring box (22), a rotating shaft (23) is arranged at the inner bottom of the sample measuring box (22), a detection strip (24) is rotatably connected to the rotating shaft (23), the bottom of the sample measuring box (22) and a switch door (25) for placing the detection strip (24) are arranged on the side wall corresponding to the rotating shaft (23), a detection strip outlet (26) is arranged at the top of the sample measuring box (22), teeth are arranged on the inner side of the top of the detection strip outlet (26), a plurality of observation ports (27) are arranged on the sample measuring box (22), and a pressure rod (28) for enabling the detection strip (24) to be kept stable is further arranged in the sample measuring box (22).
7. The pesticide residue detector according to claim 6, wherein the detection strip (24) comprises a bottom plate (29) and a top plate (30), a separation film (41) is arranged in an interlayer between the bottom plate (29) and the top plate (30), a plurality of grooves are arranged on the bottom plate (29) and the top plate (30), each groove on the top plate (30) is coated with acetylcholinesterase, the concentration of the acetylcholinesterase gradually increases according to the sequence of the grooves on the top plate (30), the bottom of each groove on the top plate (30) is provided with a sample adding hole (42), each groove on the bottom plate (29) is coated with indoxyl acetate, and the grooves on the top plate (30) correspond to the grooves on the bottom plate (29).
8. The pesticide residue detector according to claim 6, wherein the sample box (22) is further hinged with a cover for keeping the detection strip (24) dry.
9. The pesticide residue detector according to claim 6, wherein the sample box (22) is further provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911235306.4A CN110907443B (en) | 2019-12-05 | 2019-12-05 | Pesticide residue detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911235306.4A CN110907443B (en) | 2019-12-05 | 2019-12-05 | Pesticide residue detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110907443A true CN110907443A (en) | 2020-03-24 |
| CN110907443B CN110907443B (en) | 2022-09-20 |
Family
ID=69822898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911235306.4A Active CN110907443B (en) | 2019-12-05 | 2019-12-05 | Pesticide residue detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110907443B (en) |
Cited By (2)
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