CN112748222A - A incomplete detection device of farming and refrigerator for refrigerator - Google Patents
A incomplete detection device of farming and refrigerator for refrigerator Download PDFInfo
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- CN112748222A CN112748222A CN201911048034.7A CN201911048034A CN112748222A CN 112748222 A CN112748222 A CN 112748222A CN 201911048034 A CN201911048034 A CN 201911048034A CN 112748222 A CN112748222 A CN 112748222A
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- 238000001514 detection method Methods 0.000 title claims abstract description 160
- 238000009313 farming Methods 0.000 title claims description 22
- 239000007788 liquid Substances 0.000 claims abstract description 127
- 239000000447 pesticide residue Substances 0.000 claims abstract description 127
- 238000000605 extraction Methods 0.000 claims abstract description 52
- 238000005070 sampling Methods 0.000 claims description 124
- 239000000243 solution Substances 0.000 claims description 54
- 238000000034 method Methods 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000005764 inhibitory process Effects 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 7
- 102000004190 Enzymes Human genes 0.000 claims description 6
- 108090000790 Enzymes Proteins 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 4
- 235000012055 fruits and vegetables Nutrition 0.000 abstract description 16
- 238000012360 testing method Methods 0.000 abstract description 14
- 239000000575 pesticide Substances 0.000 abstract description 8
- 235000013305 food Nutrition 0.000 abstract description 6
- 235000005911 diet Nutrition 0.000 abstract description 4
- 230000037213 diet Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 10
- 239000000284 extract Substances 0.000 description 7
- 230000002572 peristaltic effect Effects 0.000 description 7
- 229940088598 enzyme Drugs 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- OIPILFWXSMYKGL-UHFFFAOYSA-N acetylcholine Chemical compound CC(=O)OCC[N+](C)(C)C OIPILFWXSMYKGL-UHFFFAOYSA-N 0.000 description 2
- 229960004373 acetylcholine Drugs 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 102100033639 Acetylcholinesterase Human genes 0.000 description 1
- 108010022752 Acetylcholinesterase Proteins 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- 102000003914 Cholinesterases Human genes 0.000 description 1
- 108090000322 Cholinesterases Proteins 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 229940022698 acetylcholinesterase Drugs 0.000 description 1
- 231100000570 acute poisoning Toxicity 0.000 description 1
- 239000000152 carbamate pesticide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229940048961 cholinesterase Drugs 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
- 229910000396 dipotassium phosphate Inorganic materials 0.000 description 1
- 235000019797 dipotassium phosphate Nutrition 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 229910000397 disodium phosphate Inorganic materials 0.000 description 1
- 235000019800 disodium phosphate Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 239000003987 organophosphate pesticide Substances 0.000 description 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 1
- 238000012031 short term test Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- 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
- G01N33/025—Fruits or vegetables
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
本发明提供了一种用于冰箱的农残检测装置以及冰箱，该农残检测装置包括：供液模块，用于提供农残检测所需的提取液；提取模块，其包括用于承装待测样品的容器，并且所述提取模块用于将提取液与待测样品进行固液混合，以得到待测液体；检测模块，用于提取至少部分待测液体，对提取出的待测液体进行农残检测。本发明提供的装置能够集成于冰箱中，可以有效地监测日常饮食中的果蔬农残情况，保障人们的饮食安全，同时本发明提供的装置结构简单且易操作，便于用户使用。此外，还可以结合智能冰箱，自动记录果蔬农残数据，为用户后续的食材采购提供合理的指导，实现以冰箱为中心的生态圈。
The invention provides a pesticide residue detection device for a refrigerator and a refrigerator. The pesticide residue detection device includes: a liquid supply module for providing extraction liquid required for pesticide residue detection; The extraction module is used for solid-liquid mixing of the extraction liquid and the sample to be tested to obtain the liquid to be tested; the detection module is used to extract at least part of the liquid to be tested, and the extracted liquid to be tested is subjected to Pesticide testing. The device provided by the invention can be integrated into a refrigerator, can effectively monitor the situation of pesticide residues in fruits and vegetables in daily diet, and ensure the safety of people's diet. In addition, it can also be combined with smart refrigerators to automatically record the data of pesticide residues in fruits and vegetables, providing reasonable guidance for users in subsequent food purchases, and realizing a refrigerator-centered ecosystem.
Description
Technical Field
The invention relates to the technical field of pesticide residue detection, in particular to a pesticide residue detection device for a refrigerator and the refrigerator.
Background
Fruits and vegetables are indispensable food in daily life of people, and pesticides are used more and more along with the increase of plant diseases and insect pests. In recent years, the reports that pesticide residues of fruit and vegetable products exceed the standard are infinite, and if the pesticide enters a human body, acute poisoning can be caused, and even life safety can be endangered. Accordingly, there is an increasing concern about food safety.
In order to prevent pesticide from entering human body, pesticide residue needs to be detected and removed before fruits and vegetables are eaten. At present, pesticide residue detection methods mainly include mass spectrometry, spectrophotometer, biological immunity and other pesticide residue detection methods, but the pesticide residue detection methods basically rely on large-scale detection instruments, which are not only large in size, but also professional and require professional operation, and are difficult to become common daily household products. In addition, the detection scheme in the prior art lacks a pesticide residue database for daily edible fruits and vegetables of each family, and cannot guide a user to purchase food materials healthily and safely.
Disclosure of Invention
One object of the present invention is to provide a pesticide residue detection device for a refrigerator.
It is a further object of the present invention to provide an optimized design for the structure of the sampling needle in the extraction module to improve the detection accuracy.
In particular, the present invention provides an agricultural residue detection apparatus for a refrigerator, comprising:
the liquid supply module is used for providing an extracting solution required by pesticide residue detection;
the extraction module comprises a container for containing a sample to be detected, and is used for mixing the extracting solution and the sample to be detected in a solid-liquid manner to obtain liquid to be detected;
and the detection module is used for extracting at least part of the liquid to be detected and carrying out pesticide residue detection on the extracted liquid to be detected.
Optionally, the extraction module further comprises:
the sampling needle is arranged at the opening of the container;
and the sampling needle driving mechanism is used for driving the sampling needle to move up and down so as to enable the lower port of the sampling needle to be contacted with the liquid to be detected for sampling and driving the sampling needle to be far away from the liquid to be detected after sampling is completed.
Optionally, the sampling needle comprises:
a first sampling needle line for injecting the extraction liquid into the container;
and the second sampling needle pipeline is used for injecting the liquid to be detected into the detection module.
Optionally, the second sampling needle line is located inside the first sampling needle line, and the lower port of the second sampling needle line extends to the outside of the lower port of the first sampling needle line.
Optionally, the extraction module further comprises: the weighing unit is used for detecting the weight value of the sample to be detected; and is
The incomplete detection device of farming still includes: and the controller is used for determining the injection amount of the extracting solution based on the weight value and a preset solution preparation ratio and controlling the liquid supply module to supply the extracting solution according to the injection amount.
Optionally, the controller is further configured to:
before sampling, controlling the sampling needle driving mechanism to drive the sampling needle to move downwards to a position where a lower port of the second sampling needle pipeline is contacted with the liquid to be detected;
and after sampling, controlling the sampling needle driving mechanism to drive the sampling needle to move upwards to a position far away from the liquid to be detected.
Optionally, the liquid supply module is further configured to provide the extracting solution to the detection module and the extraction module again after the pesticide residue detection is finished, so as to clean the detection module and the extraction module.
Optionally, the extraction module further comprises:
and the oscillation unit is used for starting after the liquid supply module provides the extracting solution so as to uniformly mix the extracting solution and the sample to be detected.
Optionally, the detection module is further configured to:
and carrying out pesticide residue detection on the extracted liquid to be detected by utilizing an enzyme inhibition method principle.
Optionally, the pesticide residue detection device for the refrigerator further comprises:
the pesticide residue data display module is used for displaying a pesticide residue detection process and a pesticide residue detection result; and/or
And the protocol interface is communicated with the main control board of the refrigerator through the protocol interface so as to display the pesticide residue detection process and the pesticide residue detection result on the display screen of the refrigerator.
The present invention also provides a refrigerator including: the pesticide residue detection device comprises a box body and any one of the pesticide residue detection devices arranged on the box body.
The invention provides a pesticide residue detection device for a refrigerator and the refrigerator, wherein the pesticide residue detection device for the refrigerator comprises a liquid supply module, an extraction module and a detection module, wherein the liquid supply module is used for providing an extracting solution required by pesticide residue detection; the extraction module comprises a container for bearing a sample to be detected, and is used for mixing the extracting solution and the sample to be detected to obtain liquid to be detected; the detection module is used for extracting at least part of liquid to be detected and carrying out pesticide residue detection on the extracted liquid to be detected. The device provided by the invention can be integrated in the refrigerator, and fruit and vegetable pesticide residues in the refrigerator can be detected by using the device, so that the food safety is ensured. Further, the design through sampling needle actuating mechanism can directly drive the sampling needle and remove, facilitates the use of the sampling needle to carry out quick sampling for the testing process, and after the sample is finished, the sampling needle can also be driven to keep away from the liquid to be tested, secondary pollution is avoided, and the precision of the testing result is improved. Meanwhile, the sampling needle comprises a first sampling needle pipeline and a second sampling needle pipeline which are respectively used for the extracting solution and the pipeline of the liquid to be detected, so that the problem that the liquid preparation proportion of the liquid to be detected is inconsistent with the preset liquid preparation proportion due to the fact that the extracting solution and the liquid to be detected share one pipeline is solved, and the accuracy of a detection result is further improved. Furthermore, the oscillation unit and the other structures of the extraction module, especially the container and the weighing unit, which are included in the extraction module are compact in structure, so that the extraction solution and the sample to be detected can be quickly mixed, and the detection time is greatly shortened.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic block diagram of a pesticide residue detection apparatus for a refrigerator according to one embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a pesticide residue detection device for a refrigerator according to one embodiment of the present invention;
FIG. 3 is a schematic diagram of a sampling needle structure of the pesticide residue detection device for the refrigerator according to one embodiment of the present invention;
FIG. 4 is a schematic block diagram of a pesticide residue detecting apparatus for a refrigerator according to another embodiment of the present invention;
FIG. 5 is a schematic flow diagram of a pesticide residue detection method according to an embodiment of the present invention;
FIG. 6 is a schematic flow chart of a pesticide residue detection method according to another embodiment of the present invention;
fig. 7 is a schematic block diagram of a refrigerator according to one embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic block diagram of an pesticide residue detection device 100 for a refrigerator according to an embodiment of the present invention, and referring to fig. 1, the pesticide residue detection device 100 provided in this embodiment may include: the liquid supply module 110 is used for providing an extracting solution required by pesticide residue detection; the extraction module 120 comprises a container 121 for containing a sample to be detected, and the extraction module 120 is used for mixing the extracting solution and the sample to be detected to obtain a liquid to be detected; the detection module 130 is configured to extract at least a part of the liquid to be detected, and perform pesticide residue detection on the extracted at least a part of the liquid to be detected.
The incomplete detection device 100 of farming that this embodiment provided, provide the incomplete required extract of detection of farming through supplying liquid module 110, carry out solid-liquid mixture through extracting module 120 with extract and the sample that awaits measuring and obtain the liquid that awaits measuring, extract at least partial liquid that awaits measuring and carry out the incomplete detection of farming to the liquid that awaits measuring that extracts through detection module 130, the incomplete full-automatic quick detection flow of farming has been realized, and the incomplete detection device 100 of farming that this embodiment provides simple structure easily operates, it can monitor the incomplete condition of fruit vegetables farming in the daily diet effectively, guarantee people's diet safety, professional detecting instrument present relatively, the operation of low and do not need the specialty of cost, detect fastly, the use of daily life of being convenient for.
The sample to be detected is at least one part of a product needing pesticide residue detection, for example, when the pesticide residue detection is carried out on fruits and vegetables, the sample to be detected is at least one part of the fruits and vegetables. The extracting solution is used for extracting pesticide residues on the surface of a sample to be detected, and can also be a solution of anhydrous dipotassium phosphate and sodium hydrogen phosphate.
Fig. 2 is a schematic structural diagram of the pesticide residue detection apparatus 100 according to an embodiment of the present invention, referring to fig. 2, the extraction module 120 may further include: a sampling needle 122 provided at an opening of the container 121; and the sampling needle driving mechanism 123 is used for driving the sampling needle 122 to move up and down so that the lower port of the sampling needle 122 contacts the liquid to be detected in the container 121 for sampling, and driving the sampling needle 122 to be far away from the liquid to be detected in the container 121 after sampling is completed.
In this embodiment, can directly drive the sampling needle through sampling needle actuating mechanism and remove, the sampling needle of being convenient for use samples, and in addition, can also drive the sampling needle and in time keep away from the liquid that awaits measuring after the sample to avoid secondary pollution, improved the testing result precision.
Fig. 3 is a schematic structural view of a sampling needle 122 in the pesticide residue detection device for a refrigerator according to an embodiment of the present invention, referring to fig. 3, in an embodiment, a sampling needle driving mechanism 123 may include a linear motor 123a, a slide rail 123b, and a connection device 123 c; and the extraction module 120 may further include: the sampling needle base 124 is used for installing the sampling needle driving mechanism 123, specifically, the sliding rail 123b is fixed on the sampling needle base 124, the connecting device 123c is arranged in the sliding rail 123b and can move up and down along the sliding rail 123b, the linear motor 123a is installed on the sliding rail 123b, and the sampling needle 122 is installed at one end of the connecting device 123c far away from the sliding rail 123 b. In the scheme provided by this embodiment, the connecting device 123c is driven by the linear motor 123a to move up and down along the sliding rail 123b, so that the sampling needle 122 installed at the end of the connecting device 123c far away from the sliding rail 123b can be driven to move up and down, the lower port of the sampling needle 122 can be in contact with the liquid to be tested in the container 121 to sample, and the liquid to be tested in the container 121 can be far away after the sampling is completed. The scheme provided by the embodiment can realize the up-and-down movement of the sampling needle.
Referring to fig. 3, in a preferred embodiment of the present invention, the sampling needle 122 may include a first sampling needle line 122a and a second sampling needle line 122 b. The first sampling needle pipeline 122a is used for injecting the extracting solution into the container 121, so that the sample to be detected and the extracting solution can be fully contacted to obtain liquid to be detected, and the second sampling needle pipeline 122b is used for injecting the liquid to be detected into the detection module 130, so that the detection module 130 can perform pesticide residue detection. In the preferred embodiment, two independent first sampling needle pipelines 122a and second sampling needle pipelines 122b are designed to distinguish the extracting solution from the pipeline of the liquid to be detected, so that the liquid to be detected can be prevented from being diluted by the extracting solution attached to the inner wall of the pipeline to cause the pollution of the liquid to be detected when passing through the sampling needle, the final detection result is influenced, and the precision of the detection result is further improved.
In the case where the sampling needle 122 includes the first sampling needle line 122a and the second sampling needle line 122b, it is preferable that, referring to fig. 2, the second sampling needle line 122b is located inside the first sampling needle line 122a, and a lower port of the second sampling needle line 122b protrudes to the outside of the lower port of the first sampling needle line 122a, and the first sampling needle line 122a does not contact the liquid to be measured when sampling. That is to say, the first sampling needle pipeline 122a is sleeved on the second sampling needle pipeline 122b, and a part of the outlet of the second sampling needle pipeline 122b extends out, when sampling, the second sampling needle pipeline 122b is used for sampling, and the state that the first sampling needle pipeline 122a does not contact the liquid to be measured needs to be maintained in the sampling process. Because only use the second sampling needle pipeline to take a sample for first sampling needle pipeline 122a can not cause the pollution to the liquid that awaits measuring, thereby can obtain the incomplete testing result of more accurate farming, improves and detects the precision.
Fig. 4 is a schematic block diagram of a pesticide residue detecting apparatus 100 for a refrigerator according to another embodiment of the present invention. Referring to fig. 2-4, in one embodiment, the extraction module 120 may further include: a weighing unit 125 for detecting a weight value of the sample to be measured; also in this embodiment, the pesticide residue detection apparatus 100 may further include: the controller 140 is configured to determine an injection amount of the extracting solution based on the weight value and a preset solution preparation ratio, and control the liquid supply module 110 to supply the extracting solution according to the determined injection amount. In the scheme provided by this embodiment, the weight value of the sample to be detected is detected by the weighing unit 125, the injection amount of the extracting solution is determined by the controller 140, and the liquid supply module 110 is controlled to supply the extracting solution strictly according to the determined injection amount, so as to obtain the sample to be detected with the preset liquid preparation ratio, thereby facilitating the pesticide residue detection of the liquid to be detected by the subsequent detection module 130.
In another embodiment, the pesticide residue detection device 100 can further include a storage solution module 150 for storing the extraction solution.
The preset liquid preparation proportion refers to the preset proportion of the weight value of the sample to be detected, which is required for pesticide residue detection, to the injection amount of the extracting solution, and can be adjusted as required. For example, the preset liquid preparation ratio is set to 1 g: 10ml, in the pesticide residue detection process, the preset proportioning ratio can be adjusted according to the type of the sample to be detected, so that the pesticide residue detection result is more definite and reasonable, and the safety is ensured.
In one embodiment of the present invention, the controller 140 may further be configured to: before sampling, the sampling needle driving mechanism 123 is controlled to drive the sampling needle 122 to move downwards to a position where the lower port of the second sampling needle pipeline 122b is contacted with the liquid to be detected; after sampling, the sampling needle driving mechanism 123 is controlled to drive the second sampling needle pipeline 122b to move up to a position far away from the liquid to be measured. According to the scheme provided by the invention, the second sampling needle pipeline 122b is used for sampling, so that the first sampling needle pipeline 122a is not contacted with the liquid to be detected, the liquid preparation proportion of the liquid to be detected can be prevented from being influenced by the extracting solution attached to the inner wall of the first sampling needle pipeline 122a, and the accuracy of pesticide residue detection is ensured. Because the liquid to be measured contains pesticide residues, the first sampling needle pipeline 122a can be prevented from being polluted due to contact with the pesticide residues.
After the pesticide residue detection is finished, in order to facilitate the next pesticide residue detection, in an embodiment of the present invention, the liquid supply module 110 may further provide the extracting solution to the detection module 130 and the extraction module 120 again after the pesticide residue detection is finished, so as to clean the detection module 130 and the extraction module 120.
Referring to fig. 2, in one embodiment, the liquid supply module 110 may include a first liquid path pipe 111 connected to the extraction module 120, particularly to a first sampling needle pipe 122a in the extraction module 120, and the liquid supply module 110 may further include a first peristaltic pump 112 disposed on the first liquid path pipe 111. Before the pesticide residue is detected, the extracting solution can be sucked into the first liquid path pipeline 111 and the first sampling needle pipeline 122a through the first peristaltic pump 112, so that the extracting solution can be injected, and after the pesticide residue is detected, the extracting solution can be sucked into the first liquid path pipeline 111 and the first sampling needle pipeline 122a through the first peristaltic pump 112, so that the inner wall of the first sampling needle pipeline 122a is cleaned.
With continued reference to fig. 2, in an embodiment, the liquid supply module 110 may further include a second liquid path pipe 113, which is connected to the extraction module 120 while being communicated with the first liquid path pipe 111, and particularly connected to a second sampling needle pipe 122b in the extraction module 120, and the liquid supply module 110 may further include a second peristaltic pump 114, which is disposed on the second liquid path pipe 113, and after the pesticide residue detection is finished, the extraction liquid may be sucked into the second liquid path pipe 113 and the second sampling needle pipe 122b by the second peristaltic pump 114, so as to clean an inner wall of the second sampling needle pipe 122 b.
With continued reference to fig. 2, in one embodiment, the pesticide residue detection apparatus 100 can further include a microfluidic circuit 160 connected to the extraction module 120 and the detection module 130, respectively, to provide at least a portion of the liquid to be detected in the container 121 of the extraction module 120 to the detection module 130.
In the present invention, the number of the first liquid path line 111, the first peristaltic pump 112, the second liquid path line 113, the second peristaltic pump 114, and the microfluidic line 160 is not limited.
Referring to fig. 4, in an embodiment of the invention, the extraction module 120 may further include a shaking unit 126, which is activated after the liquid supply module 110 provides the extraction liquid to uniformly mix the extraction liquid with the sample to be tested. Wherein the oscillating unit 126 is disposed in contact with the container 121 and the weighing unit to facilitate mixing of the extracting solution and the sample to be measured.
In an embodiment of the present invention, the detection module 130 may further perform pesticide residue detection on the extracted liquid to be detected by using an enzyme inhibition method. Optionally, the detection module 130 is composed of a microfluidic pesticide residue detection device and the like, and may include a microfluidic chip and/or a pesticide detection chip. The micro-fluidic chip technology and the pesticide detection chip technology are mature technologies in the prior art, and are not described in detail in the invention.
Preferably, the microfluidic chip is connected to the second sampling needle pipeline 122b, and is configured to control the flow of the liquid to be detected, and perform pesticide residue detection on the liquid to be detected.
Principle of enzyme inhibition method: after the acetylcholinesterase is hydrolyzed, the hydrolyzed product can react with a color developing agent to generate color. The organophosphorus and carbamate pesticides have inhibition effect on the normal function of cholinesterase, and the inhibition rate is positively correlated with the concentration of the pesticides. Under normal conditions, the enzyme catalyzes the hydrolysis of acetylcholine, the hydrolysis product of the acetylcholine reacts with a color developing agent to generate a yellow substance, a spectrophotometer is used for measuring the change value of absorbance along with time at 412nm, the inhibition rate is calculated, and whether a high-dose organophosphorus or carbamate pesticide exists in a sample can be judged through the inhibition rate.
Referring to fig. 4, in an embodiment of the present invention, the pesticide residue detection apparatus 100 may further include: the display module 170 is used for displaying the pesticide residue detection process and the pesticide residue detection result; and/or the protocol interface 180 is communicated with a main control board of the refrigerator through the protocol interface 180 so as to display the pesticide residue detection process and the pesticide residue detection result on a display screen of the refrigerator.
Based on the device that this embodiment provided, can show the incomplete testing process of farming and the incomplete testing result of farming through the display module of the incomplete testing arrangement 100 of farming self, and/or can carry out the communication through agreement interface 180 and the main control board of refrigerator to show the incomplete testing process of farming and the incomplete testing result of farming on the display screen of refrigerator, look over for the user, make the user can in time know the incomplete testing process of farming and result.
The pesticide residue detection process comprises progress of pesticide residue detection, and data measured or calculated in the detection process, such as weight value of a sample to be detected, injection amount of required extracting solution, preset solution preparation proportion and the like, and the detection result comprises species, content, detection time and the like of pesticide residue.
Optionally, the controller 140 may be further configured to record pesticide residue detection data after displaying the pesticide residue detection result, and establish a fruit and vegetable pesticide residue database based on the pesticide residue detection data and the fruit and vegetable source location input by the user. Therefore, the personalized fruit and vegetable pesticide residue database of each refrigerator user can be established, so that the subsequent reasonable purchase of the user is guided, and the use experience of the user is improved.
Fig. 5 is a schematic flow chart of the pesticide residue detection method according to an embodiment of the present invention, and as can be seen from fig. 5, the pesticide residue detection method provided by the embodiment of the present invention may include the following steps:
s502, detecting the weight value of the sample to be detected;
s504, determining the injection amount of the extracting solution based on the detected weight value and a preset solution preparation ratio, and providing the extracting solution according to the determined injection amount;
s506, carrying out solid-liquid mixing on the extracting solution and a sample to be detected to obtain liquid to be detected;
s508, extracting at least part of liquid to be detected, and carrying out pesticide residue detection on the extracted liquid to be detected;
and S510, providing the pesticide residue detection result for the user.
In this embodiment, through the weight value that detects the sample that awaits measuring to confirm the extract injection volume based on the weight value that detects and preset liquid proportion of joining in marriage, and provide the extract according to the injection volume that determines, then draw at least partial liquid that awaits measuring, and carry out the incomplete detection of farming to the liquid that awaits measuring that extracts, provide the user with the incomplete testing result of farming again, look over at any time for the user, promote user's use experience.
In the step S508, the extracted liquid to be detected is subjected to pesticide residue detection, and the extracted liquid to be detected can be subjected to pesticide residue detection by using an enzyme inhibition method.
For step S510, the pesticide residue detection result is provided to the user, and may be displayed to the user through a display module of the pesticide residue detection device itself, or may be displayed to the user through a display screen of the refrigerator.
After step S510, the pesticide residue detection method may further include recording a pesticide residue detection result, and establishing a pesticide residue database in cooperation with the user inputting the source location of the fruits and vegetables to guide the user to reasonably purchase, thereby implementing an ecosphere centering on the refrigerator.
Fig. 6 is a schematic flow chart of a pesticide residue detection method according to another embodiment of the present invention, and as can be seen from fig. 6, the pesticide residue detection method provided by the embodiment of the present invention may include the following steps:
s602, self-checking the device;
s604, preparing the liquid to be detected by the extraction module 120 for pesticide residue extraction;
s605, judging whether the extraction is finished; if yes, go to step S608; if not, continue to execute step S604;
s608, the controller 140 introduces the liquid to be detected into the detection module 130, and the detection module 130 detects pesticide residues;
s610, judging whether the detection is finished or not; if yes, go to step S612; if not, continue to execute step S608;
s612, cleaning the extraction module 120 and the detection module 130;
and S614, displaying the pesticide residue detection process and the pesticide residue detection result.
The scheme that this embodiment provided can realize full-automatic short-term test flow, does not need professional operation, can show the incomplete testing process of farming and the incomplete testing result of farming and look over for the user on the display screen of refrigerator, and user experience is good.
Optionally, the pesticide residue detection method may further include: pesticide residue detection data are collected, a fruit and vegetable pesticide residue database is established in cooperation with a fruit and vegetable source place input by a user, and the fruit and vegetable pesticide residue database is displayed on a display screen of a refrigerator to guide the user to subsequently purchase.
Fig. 7 is a schematic block diagram of a refrigerator 200 according to an embodiment of the present invention, and referring to fig. 7, the refrigerator 200 provided in this embodiment includes a box body 210 and the pesticide residue detection apparatus 100 provided on the box body 210 in any one of the above embodiments.
The embodiment of the invention provides a pesticide residue detection device 100 for a refrigerator and the refrigerator, wherein the pesticide residue detection device 100 comprises a liquid supply module 110, an extraction module 120 and a detection module 130, wherein the liquid supply module 110 is used for providing an extracting solution required by pesticide residue detection; the extraction module 120 comprises a container 121 for holding a sample to be detected, and the extraction module 120 is used for mixing the extracting solution and the sample to be detected to obtain a liquid to be detected; the detection module 130 is configured to extract at least a portion of the liquid to be detected, and perform pesticide residue detection on the extracted liquid to be detected. The device provided by the invention can be integrated in a refrigerator, a full-automatic rapid detection process of pesticide residues can be realized through the liquid supply module 110, the extraction module 120 and the detection module 130, and the fruit and vegetable pesticide residues placed in the refrigerator can be detected to ensure food safety. Furthermore, the sampling needle can be directly driven to move through the design of the sampling needle driving mechanism, the sampling needle is convenient to use for rapid sampling, and after sampling is finished, the sampling needle can be driven to keep away from liquid to be detected, so that secondary pollution is avoided, and the detection result precision is improved. Meanwhile, the sampling needle comprises a first sampling needle pipeline and a second sampling needle pipeline which are respectively used for the extracting solution and the pipeline of the liquid to be detected, so that the problem that the liquid preparation proportion of the liquid to be detected is inconsistent with the preset liquid preparation proportion due to the fact that the extracting solution and the liquid to be detected share one pipeline is solved, and the accuracy of a detection result is further improved. Furthermore, the oscillation unit and the other structures of the extraction module, especially the container and the weighing unit, which are included in the extraction module are compact in structure, so that the extraction solution and the sample to be detected can be quickly mixed, and the detection time is greatly shortened. In addition, can also combine intelligent refrigerator, record the incomplete data of farming, for the subsequent edible material purchase of user provides reasonable guidance, realize the ecological circle with the refrigerator as the center.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A pesticide residue detection device for a refrigerator, comprising:
the liquid supply module is used for providing an extracting solution required by pesticide residue detection;
the extraction module comprises a container for containing a sample to be detected, and is used for mixing the extracting solution and the sample to be detected in a solid-liquid manner to obtain liquid to be detected;
and the detection module is used for extracting at least part of the liquid to be detected and carrying out pesticide residue detection on the extracted liquid to be detected.
2. The pesticide residue detection device of claim 1, wherein the extraction module further comprises:
the sampling needle is arranged at the opening of the container;
and the sampling needle driving mechanism is used for driving the sampling needle to move up and down so as to enable the lower port of the sampling needle to be contacted with the liquid to be detected for sampling and driving the sampling needle to be far away from the liquid to be detected after sampling is completed.
3. The pesticide residue detection device of claim 2, wherein the sampling needle comprises:
a first sampling needle line for injecting the extraction liquid into the container;
and the second sampling needle pipeline is used for injecting the liquid to be detected into the detection module.
4. The pesticide residue detection device of claim 3, wherein the second sampling needle pipeline is positioned inside the first sampling needle pipeline, and the lower port of the second sampling needle pipeline extends out of the lower port of the first sampling needle pipeline, and the first sampling needle pipeline does not contact the liquid to be detected when sampling.
5. The pesticide residue detection apparatus according to claim 3, wherein,
the extraction module further comprises: the weighing unit is used for detecting the weight value of the sample to be detected; and is
The incomplete detection device of farming still includes: and the controller is used for determining the injection amount of the extracting solution based on the weight value and a preset solution preparation ratio and controlling the liquid supply module to supply the extracting solution according to the injection amount.
6. The pesticide residue detection apparatus according to claim 5, wherein,
and the liquid supply module is also used for providing the extracting solution for the detection module and the extraction module again after pesticide residue detection is finished so as to clean the detection module and the extraction module.
7. The pesticide residue detection device of claim 5, wherein the extraction module further comprises:
and the oscillation unit is used for starting after the liquid supply module provides the extracting solution so as to uniformly mix the extracting solution and the sample to be detected.
8. The pesticide residue detection device of claim 1, wherein the detection module is further configured to:
and carrying out pesticide residue detection on the extracted liquid to be detected by utilizing an enzyme inhibition method principle.
9. The pesticide residue detection device of claim 1, further comprising:
the pesticide residue data display module is used for displaying a pesticide residue detection process and a pesticide residue detection result; and/or
And the protocol interface is communicated with the main control board of the refrigerator through the protocol interface so as to display the pesticide residue detection process and the pesticide residue detection result on the display screen of the refrigerator.
10. A refrigerator, comprising: a box and a pesticide residue detection device as claimed in any one of claims 1 to 9 arranged on the box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911048034.7A CN112748222A (en) | 2019-10-30 | 2019-10-30 | A incomplete detection device of farming and refrigerator for refrigerator |
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| CN201911048034.7A CN112748222A (en) | 2019-10-30 | 2019-10-30 | A incomplete detection device of farming and refrigerator for refrigerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023174271A1 (en) * | 2022-03-15 | 2023-09-21 | 青岛海尔电冰箱有限公司 | Refrigerator and control method therefor |
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