CN108362843A - A kind of portable pesticide residue detection device - Google Patents
A kind of portable pesticide residue detection device Download PDFInfo
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- CN108362843A CN108362843A CN201810121639.3A CN201810121639A CN108362843A CN 108362843 A CN108362843 A CN 108362843A CN 201810121639 A CN201810121639 A CN 201810121639A CN 108362843 A CN108362843 A CN 108362843A
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- heating
- circuit
- pesticide residue
- detection device
- residue detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 239000000447 pesticide residue Substances 0.000 title claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 68
- 238000012360 testing method Methods 0.000 claims abstract description 51
- 238000012545 processing Methods 0.000 claims abstract description 20
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 238000013461 design Methods 0.000 claims description 12
- 238000001746 injection moulding Methods 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005314 correlation function Methods 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 239000000575 pesticide Substances 0.000 abstract description 10
- 235000013311 vegetables Nutrition 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000006837 decompression Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 2
- 108090000371 Esterases Proteins 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- OEYIOHPDSNJKLS-UHFFFAOYSA-N choline Chemical compound C[N+](C)(C)CCO OEYIOHPDSNJKLS-UHFFFAOYSA-N 0.000 description 2
- 229960001231 choline Drugs 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000003480 eluent Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 235000021384 green leafy vegetables Nutrition 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 208000021267 infertility disease Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/18—Means for temperature control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/18—Means for temperature control
- B01L2300/1805—Conductive heating, heat from thermostatted solids is conducted to receptacles, e.g. heating plates, blocks
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catching Or Destruction (AREA)
Abstract
A kind of portable pesticide residue detection device, including：Structure division and control section, the control section are arranged inside the structure division；The structure division includes：Upper cover, test paper briquetting, heat-conducting plate, support ontology, buckle button, shaft, test paper axis, lower cover, heating fixed plate, thermal insulation board and heating plate；The control section includes：Power supply circuit, lithium battery charging circuit, button control circuit, battery low-voltage protection circuit, heating control circuit, central data processing system and switching circuit；The configuration of the present invention is simple, easy to operate, accurate heated at constant temperature, waterproof, can single detect the portable pesticide residue detection devices of modified form of more parts of pesticide quick measuring cards；The temperature deviation of each detect tank is less than 0.5 degree Celsius, and detection efficiency is high.
Description
Technical field
The present invention relates to a kind of detection device technology field, especially a kind of portable pesticide residue detection device.
Background technology
With stepping up for people's living standard, the demand to agricultural product is increasing, agriculture industrialization it is fast
Speed development, makes the production of agricultural product be increasingly dependent on the allogenic materials such as pesticide, antibiotic and hormone；China's pesticide homogenizing is in agriculture
Dosage of sharing on product remains high, and the unreasonable use of these substances will cause the pesticide residue in agricultural product super
Mark, influences consumer's edible safety, and consumer can be caused to cause a disease when serious, develop abnormal, or even directly result in and be poisoned to death,
And the arch-criminal that the infertile rate index of young man significantly rises in recent years；Pesticide residue is controlled to torture human body,
The inspecting force to Pesticide Residues must just be reinforced；Due to most of the planting patterns of China be corporation farm contract plus
The planting patterns of peasant's individual, and wherein peasant's Sole Proprietorship is more dispersed, quality is irregular, and fertilising medication is difficult to supervise,
And many vegetables, especially leaf vegetables are adopted and sell to keep fresh, and many pesticides, antistaling agent are indiscriminate on green vegetables
With the supervision for causing vegetable basket work is extremely difficult, increases the diet risk of the people；This kind of green vegetables are in the field of circulation
Residence time is extremely short, and batch it is small, source is wide, thus there is an urgent need to a kind of Fast Detection Techniques of pesticide residue on the market
Quick reaction is made, pesticide-tainted vegetable could be prevented to come into the market from vegetables production base or field of circulation source；
In the prior art, the technological means such as generally use pesticide residue tester detect vegetable chemistry component residue, example
Such as：
First, sample to be tested is cleaned out, 2~3 drop eluent (distilled water) of drop is in vegetable surface, with another vegetables
It gently rubs at dropping liquid；After taking a piece of Fast Determination of Pesticide Residue card to tear book film off, the drop on vegetables is dropped in into white medicine
On piece；
Secondly, it places 10 minutes or more and carries out pre-reaction, placed 10 minutes in 37 DEG C of thermostats when having ready conditions.It is pre- anti-
Coat tablets after answering must keep moistening (adding a drop when inadequate again)；
Again, it by Fast Determination of Pesticide Residue card doubling, is pinched 3 minutes with hand or with thermostat constant temperature 3 minutes, makes red
Tablet reacts with white tablet overlapping；
Finally, every batch of measures the blank control card that should set an eluent or distilled water, to make reference；
It operates can be seen that from the detection of the above specification and larger defect exists in the prior art, can not such as ensure agriculture
The chemical reaction temperature of residual test card substantially reduces efficiency by manual operation to test, and the operating personnel of different level,
It has a certain impact to test result, the result that the test man of different experiences measures is often different.
Invention content
For problems of the prior art, the purpose of the present invention is to provide a kind of portable Detecting Pesticides to fill
It sets, is designed by the collaborative of the constant temperature structure of original creation and locking mechanism, substantially increase detection accuracy, and multichannel
Detection function substantially increases the detection speed of diversified vegetables, simple in structure, small and exquisite reliable, is suitble to carry；
To achieve the above object, the present invention provides a kind of portable pesticide residue detection device, including：Structure division and control
Part processed, the control section are arranged inside the structure division；
Further, the structure division includes：Upper cover, heat-conducting plate, support ontology, buckle button, turns test paper briquetting
Axis, test paper axis, lower cover, heating fixed plate, thermal insulation board and heating plate；On the test paper briquetting is assemblied on the inside of the upper cover,
For compressing test paper, the heat-conducting plate and support ontology integrated injection molding, the upper cover are connect with support ontology by shaft,
And can rotate around the axis, the buckle button is assemblied on support ontology, when upper cover altogether when for blocking upper cover；It is described to add
Backing, thermal insulation board and heating fixed plate are sequentially arranged at the back side of stainless steel heat-conducting plate, are finally fixed on by heating fixed plate
It supports on ontology；The lower cover is fixed on the bottom of support ontology；The heating plate is corresponded with TCH test channel, the heating
The quantity of piece and TCH test channel is 12 groups；Every group of heating plate is electrically connected with temperature sensor；
Illustrate as an example, the heat-conducting plate uses stainless steel processing and fabricating；
Illustrate as an example, the heating plate bottom uses diaphragm heater structure, diaphragm heater structure can be with
The heating error after the power supply of conventional cement resistance is effectively reduced, higher equalized temperature effect and stablizing effect can be played；
Greatly reduce the error amount in each channel so that each channel is attained by Accurate Determining；
Illustrate as an example, the temperature sensor uses DS18B20 temperature sensors；
Illustrate as an example, the heat-conducting plate and support ontology use integrated injection molding, thoroughly solve tradition
In technology, the leakage problem between heat-conducting plate and ontology, and efficiency of assembling can be significantly improved；
Illustrate as an example, the heating plate uses integral design structure, has effectively prevented split structure and has existed
The technological deficiency of generated uneven heating when heating ensure that the equilibrium of each TCH test channel heating temperature；
Illustrate as an example, the heating plate is close to heat conduction back, this structure design can make heat transfer efficiency
It improves, in the rib of the one whole circle protrusion of back side design of the heat-conducting plate and support ontology, one is formed together with heating fixed plate
A enclosure space wherein heating plate closing not only ensures the energy-saving effect of heating, but also reduces the interference of extraneous factor；
Illustrate as an example, the buckle button is two, and setting is symmetrical, and buckle button ensures upper cover and branch
It supports ontology to be closed completely, that is, ensures that each lane testing test paper pressure is balanced, ensure the consistency and accuracy of test result；
Illustrate as an example, it is described support ontology on test paper axis use breakaway-element structure design, make insertion and
Extraction test paper is more prone to, and decreases spill-out of the residual liquid when being inserted into and extracting test paper out on test paper, moreover it is possible to
Keep the fitting in test of test paper top and bottom more abundant, test result is more acurrate；
Illustrate as an example, small magnet is provided on the upper lid, for judging whether upper cover covers tightly；Upper cover is closed not
Sternly, the inaccuracy that can cause measurement data, is interfered by external parameter；
Further, the button of relevant control part is provided on the right side of the support ontology, button can carry for user
It is arranged for correlation function, and is shown by liquid crystal display；
Illustrate as an example, the control section passes through 3.7v lithium battery power supplies；The effect of lithium battery can allow use
Family uses equipment to provide electricity outdoors；
Illustrate as an example, it is 4.2V to expire under state of charge when lithium battery, in the case where not leaning on external charger,
It when being worked for equipment using battery, can not have been worked normally for equipment when cell voltage drops to 3.3V, at this time low-voltage variation electricity
Road detects that cell voltage is less than 3.3V, automatically cuts off current supply circuit and shuts down；The measurement brought by not enough power supply is reduced to miss
Difference；
Illustrate as an example, thick salt method is utilized to organophosphor and the high sensitive choline of carbamate
The test paper that esterase and color developing agent are made judges whether pesticide is exceeded according to chromogenic reaction；
Further, the control section includes：Power supply circuit, lithium battery charging circuit, button control circuit, battery are low
Voltage protection circuit, heating control circuit, central data processing system and switching circuit；The lithium battery charging circuit, button
Control circuit, battery low-voltage protection circuit, heating control circuit and switching circuit respectively with the central data processing system
Electrical connection, the power supply circuit are used for the power supply of the heating control circuit and central data processing system.
Illustrate as an example, in the power supply circuit, interface J5 is Micro-USB interfaces, at present mobile phone major flow
With interface, as the input general supply of equipment, advantage is：It charges convenient and efficient；U3 is analog switch, and after booting, simulation is opened
It closes and opens, power supply is connected, and voltage provides working power after U7boost boosts, for heating equipment；Take the power supply after boosting logical
The linear LDO decompressions of U6 are crossed, other IC provide working power to output voltage for equipment.Advantage can effectively be dropped by linear LDO decompressions
The noise formed after low boost boostings, makes equipment work under relatively reliable environment；
Illustrate as an example, the highest charging current of the lithium battery charging circuit is 750mA, and light emitting diode is aobvious
Show instruction state, red light when charging becomes green full of rear red light；
Illustrate as an example, the button control circuit for detecting whether have accordingly by key pressing, at this time in
Centre data processing system takes corresponding action to handle；
Illustrate as a kind of applicating example, the central data processing system is controlled using microcontroller (CPU) as core
Component；
Illustrate as an example, the battery low-voltage protection circuit effect is set less than us when cell voltage
When standard value, automatic shutdown, this design can be protected battery by equipment；
Illustrate as an example, analog switch of the heating control circuit as heating equipment only works as microcontroller
It (is provided by button before) after receiving call for heat, heater switch is opened, and heating equipment is started to work；
Illustrate as an example, the central data processing system is that core of the invention handles arithmetic center；
Illustrate as an example, the switching circuit is used for switching on and shutting down management, and long-press 1 second is switched on, long-press 2 again after booting
Second shutdown；
Beneficial effects of the present invention：
1. the present invention provide a kind of simple in structure, easy to operate, accurate heated at constant temperature, waterproof, can single detect more parts of agricultures
The portable pesticide residue detection device of modified form of medicine quick measuring card；The temperature deviation of each detect tank is less than 0.5 degree Celsius, avoid by
Testing result is influenced in temperature control deviation；
2. each detect tank is equipped with locating groove, it is combined with the preforming device of upper cover, it is only necessary to which a step closing lid can be realized
The sheeting operation in all channels, it is easy to operate；
3. circuit system and the outside of adopting tray interior are completely isolated, water resistance is good；
4. single operation can detect more parts of pesticide quick measuring cards, detection efficiency is high.
Description of the drawings
Fig. 1 is a kind of integrally-built upper cover opening state schematic diagram of portable pesticide residue detection device of the present invention
Fig. 2 is that reference view is decomposed at a kind of overall structure back side of portable pesticide residue detection device of the present invention
Fig. 3 is that reference view is installed at a kind of overall structure back side of portable pesticide residue detection device of the present invention
Fig. 4 is a kind of theory structure schematic diagram of the power supply circuit of portable pesticide residue detection device of the present invention
Fig. 5 is a kind of theory structure schematic diagram of the lithium battery charging circuit of portable pesticide residue detection device of the present invention
Fig. 6 is a kind of theory structure schematic diagram of the button control circuit of portable pesticide residue detection device of the present invention
Fig. 7 is that a kind of battery low-voltage of portable pesticide residue detection device of the present invention protects the theory structure of circuit to show
It is intended to
Fig. 8 is a kind of theory structure schematic diagram of the heating control circuit of portable pesticide residue detection device of the present invention
Fig. 9 is a kind of central data processing system theory structure schematic diagram of portable pesticide residue detection device of the present invention
Figure 10 and 11 is a kind of theory structure schematic diagram of the switching circuit of portable pesticide residue detection device of the present invention
Specific implementation mode
In the following, shown in refer to the attached drawing, a kind of portable pesticide residue detection device, including：Structure division and control section,
The control section is arranged inside the structure division；
Further, the structure division includes：Upper cover 1, test paper briquetting 2, heat-conducting plate 3, support ontology 4, buckle button
5, shaft 6, test paper axis 7, lower cover 8, heating fixed plate 9, thermal insulation board 10 and heating plate 11；The test paper briquetting 2 is assemblied in institute
It states on 1 inside of upper cover, for compressing test paper, the heat-conducting plate 3 and support 4 integrated injection molding of ontology, the upper cover 1 and support
Ontology 4 is connected by shaft 6, and 6 can be rotated around the shaft, and the buckle button 5 is assemblied on support ontology 4, when upper cover 1 closes
For blocking upper cover 1 when coming；The heating plate 11, thermal insulation board 10 and heating fixed plate 9 are sequentially arranged at the back of the body of heat-conducting plate 3
Face is finally fixed on by heating fixed plate 9 on support ontology 4；The lower cover 8 is fixed on the bottom of support ontology 4；The heating
Piece 11 is corresponded with TCH test channel, and the heating plate 11 and the quantity of TCH test channel are 12 groups；Every group of heating plate 11
It is electrically connected with temperature sensor；
Illustrate as an example, the heat-conducting plate 3 uses stainless steel processing and fabricating；
Illustrate as an example, 11 bottom of the heating plate uses diaphragm heater structure, and diaphragm heater structure can
To effectively reduce the heating error after the power supply of conventional cement resistance, higher equalized temperature effect can be played and stablized and imitated
Fruit；Greatly reduce the error amount in each channel so that each channel is attained by Accurate Determining；
Illustrate as an example, the temperature sensor uses DS18B20 temperature sensors；
Illustrate as an example, the heat-conducting plate 3 and support ontology 4 use integrated injection molding, thoroughly solve biography
In system technology, the leakage problem between heat-conducting plate and ontology, and efficiency of assembling can be significantly improved；
Illustrate as an example, the heating plate 11 uses integral design structure, has effectively prevented split structure
The technological deficiency of generated uneven heating when heated ensure that the equilibrium of each TCH test channel heating temperature；
Illustrate as an example, the heating plate 11 is close to 3 back side of heat-conducting plate, this structure design can make heat conduction imitate
Rate improves, in the rib of the one whole circle protrusion of back side design of the heat-conducting plate 3 and support ontology 4, with heating fixed plate 9 together group
Wherein the closing of heating plate 11 not only ensure the energy-saving effect of heating at an enclosure space, but also reduces extraneous factor
Interference；
Illustrate as an example, the buckle button 5 is two, and setting is symmetrical, and buckle button 5 ensures upper cover 1
It is closed completely with support ontology 4, that is, ensures that each lane testing test paper pressure is balanced, ensure the consistency and accurately of test result
Property；
Illustrate as an example, the test paper axis 7 on the support ontology 4 uses breakaway-element structure design, makes insertion
It is more prone to extraction test paper, decreases spill-out of the residual liquid when being inserted into and extracting test paper out on test paper, also
The fitting in test of test paper top and bottom can be made more abundant, test result is more acurrate；
Illustrate as an example, small magnet is provided in the upper cover 1, for judging whether upper cover covers tightly；Upper cover is closed
It is not tight, the inaccuracy of measurement data can be caused, is interfered by external parameter；
Further, the right side of the support ontology 4 is provided with the button of relevant control part, and button can carry for user
It is arranged for correlation function, and is shown by liquid crystal display；
Illustrate as an example, the control section passes through 3.7v lithium battery power supplies；The effect of lithium battery can allow use
Family uses equipment to provide electricity outdoors；
Illustrate as an example, it is 4.2V to expire under state of charge when lithium battery, in the case where not leaning on external charger,
It when being worked for equipment using battery, can not have been worked normally for equipment when cell voltage drops to 3.3V, at this time low-voltage variation electricity
Road detects that cell voltage is less than 3.3V, automatically cuts off current supply circuit and shuts down；The measurement brought by not enough power supply is reduced to miss
Difference；
Illustrate as an example, thick salt method is utilized to organophosphor and the high sensitive choline of carbamate
The test paper that esterase and color developing agent are made judges whether pesticide is exceeded according to chromogenic reaction；
Further, the control section includes：Power supply circuit, lithium battery charging circuit, button control circuit, battery are low
Voltage protection circuit, heating control circuit, central data processing system and switching circuit；The lithium battery charging circuit, button
Control circuit, battery low-voltage protection circuit, heating control circuit and switching circuit respectively with the central data processing system
Electrical connection, the power supply circuit are used for the power supply of the heating control circuit and central data processing system.
Illustrate as an example, in the power supply circuit, interface J5 is Micro-USB interfaces, at present mobile phone major flow
With interface, as the input general supply of equipment, advantage is：It charges convenient and efficient；U3 is analog switch, and after booting, simulation is opened
It closes and opens, power supply is connected, and voltage provides working power after U7boost boosts, for heating equipment；Take the power supply after boosting logical
The linear LDO decompressions of U6 are crossed, other IC provide working power to output voltage for equipment.Advantage can effectively be dropped by linear LDO decompressions
The noise formed after low boost boostings, makes equipment work under relatively reliable environment；
Illustrate as an example, the highest charging current of the lithium battery charging circuit is 750mA, and light emitting diode is aobvious
Show instruction state, red light when charging becomes green full of rear red light；
Illustrate as an example, the button control circuit for detecting whether have accordingly by key pressing, at this time in
Centre data processing system takes corresponding action to handle；
Illustrate as a kind of applicating example, the central data processing system is controlled using microcontroller (CPU) as core
Component；
Illustrate as an example, the battery low-voltage protection circuit effect is set less than us when cell voltage
When standard value, automatic shutdown, this design can be protected battery by equipment；
Illustrate as an example, analog switch of the heating control circuit as heating equipment only works as microcontroller
It (is provided by button before) after receiving call for heat, heater switch is opened, and heating equipment is started to work；
Illustrate as an example, the central data processing system is that core of the invention handles arithmetic center；
Illustrate as an example, the switching circuit is used for switching on and shutting down management, and long-press 1 second is switched on, long-press 2 again after booting
Second shutdown；
The present invention provide a kind of simple in structure, easy to operate, accurate heated at constant temperature, waterproof, can single detect more parts of pesticides
The portable pesticide residue detection device of modified form of quick measuring card；The temperature deviation of each detect tank is less than 0.5 degree Celsius, avoid due to
Temperature control deviation influences testing result；Each detect tank is equipped with locating groove, is combined with the preforming device of upper cover, it is only necessary to one
The sheeting operation in all channels can be realized in step closing lid, easy to operate；Circuit system and the outside for adopting tray interior are completely isolated,
Water resistance is good；Single operation can detect more parts of pesticide quick measuring cards, and detection efficiency is high.
Disclosed above is only the specific embodiment of the application, and however, this application is not limited to this, any this field
Technical staff can think variation, should all fall in the protection domain of the application.
Claims (9)
1. a kind of portable pesticide residue detection device, which is characterized in that including：Structure division and control section, the control
Part is arranged inside the structure division；
The structure division includes：Upper cover, test paper briquetting, heat-conducting plate, support ontology, buckle button, shaft, test paper axis, under
Lid, heating fixed plate, thermal insulation board and heating plate；On the test paper briquetting is assemblied on the inside of the upper cover, for compressing test paper, institute
Heat-conducting plate and support ontology integrated injection molding are stated, the upper cover is connect with support ontology by shaft, and can be rotated around the axis,
The buckle button is assemblied on support ontology, when upper cover altogether when for blocking upper cover；The heating plate, thermal insulation board and
Heating fixed plate is sequentially arranged at the back side of stainless steel heat-conducting plate, is finally fixed on support ontology by heating fixed plate；It is described
Lower cover is fixed on the bottom of support ontology；The heating plate and TCH test channel one-to-one correspondence, the heating plate and TCH test channel
Quantity is 12 groups；Every group of heating plate is electrically connected with temperature sensor；
The button of relevant control part is provided on the right side of the support ontology, button can provide correlation function to the user and set
It sets, and is shown by liquid crystal display；
The control section includes：Power supply circuit, lithium battery charging circuit, button control circuit, battery low-voltage protection circuit,
Heating control circuit, central data processing system and switching circuit；The lithium battery charging circuit, button control circuit, battery
Low voltage protection circuit, heating control circuit and switching circuit are electrically connected with the central data processing system respectively, the confession
Circuit is used for the power supply of the heating control circuit and central data processing system.
2. a kind of portable pesticide residue detection device according to claim 1, which is characterized in that the heat-conducting plate uses
Stainless steel processing and fabricating；The heating plate bottom uses diaphragm heater structure.
3. a kind of portable pesticide residue detection device according to claim 2, which is characterized in that the temperature sensor
Using DS18B20 temperature sensors；The heating plate uses monolithic construction.
4. a kind of portable pesticide residue detection device according to claim 3, which is characterized in that the heat-conducting plate and branch
The rib for supportting the one whole circle protrusion of back side design of ontology, forms an enclosure space, heating plate closing together with heating fixed plate
Wherein.
5. a kind of portable pesticide residue detection device according to claim 4, which is characterized in that the buckle button is
Two, symmetrical is set
6. a kind of portable pesticide residue detection device according to claim 5, which is characterized in that on the support ontology
Test paper axis use breakaway-element structure design, be provided with small magnet on the upper lid.
7. a kind of portable pesticide residue detection device according to claim 6, which is characterized in that the power supply circuit
In, interface J5 is Micro-USB interfaces, and U3 is analog switch, and after booting, analog switch is opened, and power supply is connected, and voltage passes through
After U7boost boostings, working power is provided for heating equipment.
8. a kind of portable pesticide residue detection device according to claim 7, which is characterized in that the lithium battery charging
The highest charging current of circuit is 750mA, diode displaying instruction state, and red light when charging becomes green full of rear red light
Color.
9. a kind of portable pesticide residue detection device according to claim 8, which is characterized in that at the central data
Reason system is using microcontroller as core control part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121639.3A CN108362843A (en) | 2018-02-07 | 2018-02-07 | A kind of portable pesticide residue detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121639.3A CN108362843A (en) | 2018-02-07 | 2018-02-07 | A kind of portable pesticide residue detection device |
Publications (1)
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| CN109613278A (en) * | 2018-12-29 | 2019-04-12 | 广州菲康生物技术有限公司 | A kind of vitamin A detection kit |
| CN111766350A (en) * | 2020-06-29 | 2020-10-13 | 吉安职业技术学院 | Food detection device and system controlled by digital circuit |
| CN112525898A (en) * | 2020-12-05 | 2021-03-19 | 中国第一汽车股份有限公司 | Test paper and method for detecting formaldehyde content in textile |
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