CN116558924A - Sample pretreatment device for food detection - Google Patents
Sample pretreatment device for food detection Download PDFInfo
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- CN116558924A CN116558924A CN202310729590.0A CN202310729590A CN116558924A CN 116558924 A CN116558924 A CN 116558924A CN 202310729590 A CN202310729590 A CN 202310729590A CN 116558924 A CN116558924 A CN 116558924A
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- flushing
- crushing
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- 235000013305 food Nutrition 0.000 title claims abstract description 34
- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 238000011010 flushing procedure Methods 0.000 claims abstract description 92
- 238000005070 sampling Methods 0.000 claims abstract description 60
- 239000007921 spray Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000010902 straw Substances 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 5
- 238000007781 pre-processing Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 239000007788 liquid Substances 0.000 description 16
- 235000012055 fruits and vegetables Nutrition 0.000 description 12
- 238000000605 extraction Methods 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 244000018633 Prunus armeniaca Species 0.000 description 1
- 235000009827 Prunus armeniaca Nutrition 0.000 description 1
- 240000005809 Prunus persica Species 0.000 description 1
- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 235000021055 solid food Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a sample pretreatment device for food detection, which comprises a support assembly, a sample cup, a flushing assembly, a crushing assembly and a sampling assembly. The support assembly comprises a base, a rotary table and a lifting mechanism, wherein the lifting mechanism comprises a lifting rod, a first extension rod and a second extension rod which are vertically arranged on the rotary table; the flushing assembly comprises a flushing cylinder and a flushing nozzle; the crushing assembly comprises a crushing cutter and a first motor; the sampling component is arranged on the second extension rod. The supporting component, the crushing component and the sampling component act together, so that automatic crushing and automatic sampling of samples can be realized, and the degree of automation of sample pretreatment is improved. The sample cup and the crushing knife are separately arranged, and under the driving of the lifting mechanism and the rotating table, the crushing knife can enter the sample cup to crush samples and also enter the flushing barrel to be flushed and cleaned. The sample cup can be taken down and cleaned after the sampling is finished, the weight of the sample cup is lighter, the cleaning is more convenient, the motor does not need to be worried about water inflow, and the sample cup is safer.
Description
Technical Field
The invention belongs to the technical field of food detection pretreatment, and particularly relates to a sample pretreatment device for food detection.
Background
In order to ensure food safety, components such as heavy metals, pesticides and the like possibly contained in food are required to be detected, and after the detection is qualified, the components are allowed to be sold in the market. The sample extracting solution is required to be prepared before detection, and the tissue triturating method is mainly adopted for preparing the extracting solution for fruit and vegetable foods at present. The tissue triturating method is also called as a homogenate extraction method, and is characterized in that a proper amount of fruit and vegetable samples are taken during operation, an extraction solvent (such as purified water and the like) is added into the fruit and vegetable samples, then crushing and filtering treatment are carried out to obtain an extraction solution, and harmful substances in the extraction solution are detected. The tissue triturating method has the advantages of simplicity, rapidness and good effect, and has the defect that the crushing tool needs to be sufficiently cleaned after each preparation is finished so as to avoid the interference of the residual sample on the crushing tool on the next sample preparation.
The pretreatment device comprises a crushing tool and a filtering tool, wherein the crushing tool is used for crushing a sample and comprises a sample container, a crushing cutter head and a motor. The sample container is used for containing a proper amount of fruit and vegetable samples, and for large-block samples, the sample container is cut into small blocks and then placed in the sample container. The crushing cutter head is arranged at the bottom of the inner cavity of the sample container, and the motor at the bottom of the sample container drives the crushing cutter head to rotate at a high speed, so that crushing sample preparation of fruit and vegetable samples is completed. In the prior art, the sample crushing tool is cleaned manually, and a crushing tool bit, a motor and a sample container of the crushing tool are assembled into a whole, so that the sample crushing tool is heavy in weight and laborious to clean. And when crushing tool bit and sample container during the washing, the motor of sample container bottom is intake easily, has the power consumption hidden danger, also causes the motor to advance water easily and abandons.
Disclosure of Invention
The invention provides a sample pretreatment device for food detection, and aims to solve the problems that a crushing tool in the existing food pretreatment device is laborious to clean by manpower and water inflow of a motor is easy to cause.
In order to achieve the above purpose, the invention adopts the following technical scheme: provided is a sample pretreatment apparatus for food detection, comprising:
the support assembly comprises a base, a rotary table and a lifting mechanism, wherein the rotary table is rotatably arranged on the base around a vertical axis, a first placing station is formed on one side of the rotary table, a flushing station is formed on the other side of the rotary table, the lifting mechanism comprises a lifting rod arranged on the rotary table, and further comprises a first extension rod and a second extension rod, the first extension rod and the second extension rod are oppositely arranged at the top end of the lifting rod, and the first extension rod and the second extension rod respectively extend along the horizontal direction;
the sample cup is arranged at the first placing station;
the flushing assembly comprises a flushing cylinder and a flushing spray head, the flushing cylinder is arranged at the flushing station and is provided with a flushing cavity with an upward opening, the bottom of the flushing cavity is connected with a first drain pipe, and the flushing spray head is arranged in the flushing cavity;
the crushing assembly comprises a crushing cutter and a first motor which are respectively arranged at one end of the first extension rod, and the first motor is used for driving the crushing cutter to rotate; and
the sampling assembly is arranged on the second extension rod;
the sampling assembly is located above the flushing station when the crushing assembly is located above the first placing station, and the sampling assembly is located above the first placing station when the crushing assembly is located above the flushing station.
In one possible implementation, the sample pretreatment apparatus for food detection further includes a sample placement assembly, the sample placement assembly including:
the rotating frame is rotatably arranged at the first placing station, and a plurality of accommodating cavities are formed in the rotating frame along the circumferential direction of the rotating frame and are used for accommodating the sample cups; and
and the second motor is arranged on the base and used for driving the rotating frame to rotate around a vertical axis.
In one possible implementation, the flushing assembly further includes a first solenoid valve disposed on the first drain pipe.
In one possible implementation, the sampling assembly includes:
the suction pipe is vertically downwards arranged on the second extension rod;
the conveying pump is arranged on the second extension rod, and the inlet end of the conveying pump is connected with the suction pipe; and
and the inlet end of the conveying pipe is connected with the outlet end of the conveying pump.
In one possible implementation manner, the base is further provided with a second placing station between the first placing station and the rotating table, and a sewage draining pool is further formed between the rotating table and the flushing station, and the sewage draining pool is communicated with a second drain pipe;
when the sampling assembly is located above the first placing station, the outlet end of the conveying pipe is located above the second placing station, and when the sampling assembly is located above the flushing station, the outlet end of the conveying pipe is located above the sewage disposal tank.
In one possible implementation manner, the sampling assembly further comprises a filter cartridge, the filter cartridge is sleeved on the periphery of the suction pipe and is detachably connected with the second extension rod, and a plurality of filter holes are formed in the bottom and the side wall of the filter cartridge.
In one possible implementation manner, the lower surface of the second extension rod is provided with a mounting groove, the mounting groove is arranged around the suction pipe, an annular magnet is arranged on the inner wall of the mounting groove, and an iron ring is arranged on the periphery of the upper end of the filter cylinder.
In one possible implementation, the crushing blade comprises:
the cutter handle is vertically downwards arranged on the first extension rod, a plurality of accommodating grooves are formed in the periphery of the cutter handle along the circumferential direction of the cutter handle, the accommodating grooves are formed from top to bottom, and guide grooves are formed in two opposite side walls of the accommodating grooves from top to bottom respectively;
the plurality of first cutter bodies are arranged in the accommodating groove in a one-to-one correspondence manner, and the lower ends of the first cutter bodies are hinged to the side walls of the accommodating groove;
the plurality of second cutter bodies are arranged in the accommodating grooves in a one-to-one correspondence manner, the lower ends of the second cutter bodies are hinged with the corresponding upper ends of the first cutter bodies, and the upper ends of the second cutter bodies are in sliding fit with the guide grooves;
the adjusting rods are arranged on the tool handle in a one-to-one correspondence manner, and the lower ends of the adjusting rods are hinged with the upper end of the second tool body; and
and the telescopic driving piece is arranged on the knife handle and used for driving the adjusting rod to move up and down.
In one possible implementation manner, the knife handle is further provided with a protective cover plate, and when the first knife body and the second knife body are contained in the sample cup, the protective cover plate covers the opening of the sample cup.
In one possible implementation, the telescopic drive is a cylinder.
Compared with the prior art, the sample pretreatment device for food detection has the beneficial effects that:
the invention provides a sample pretreatment device for food detection, which comprises a supporting component, a sample cup, a flushing component, a crushing component and a sampling component. The supporting component comprises a base, a rotary table and a lifting mechanism, the sample cup is used for containing fruit and vegetable samples to be crushed, the rotary table can drive the crushing component to rotate with the flushing component, when the crushing component rotates to the upper portion of the sample cup, the sampling component rotates to the upper portion of the flushing component, the lifting rod descends, the crushing knife enters the sample cup to crush the samples, and the sampling component enters the flushing barrel to be flushed and cleaned. After the sample is broken, the lifter rises, then the revolving stage drive broken subassembly moves to the wash bowl top, and the sample subassembly then moves to the sample cup top, and the lifter descends, makes the sample subassembly get into in the sample cup to sample the liquid sample that the breakage was accomplished, and the broken sword then gets into in the wash bowl of below, and the shower nozzle spouts the cleaning solution and washes the broken sword, avoids remaining sample on the broken sword to influence the broken processing of next sample.
According to the invention, the crushing assembly and the sampling assembly are arranged, the crushing assembly can realize crushing treatment of samples under the driving of the rotary table and the lifting mechanism, and the sampling assembly can sample the crushed samples for subsequent detection operation. The supporting component, the crushing component and the sampling component act together, so that automatic crushing and automatic sampling of samples can be realized, and the degree of automation of sample pretreatment is improved.
According to the invention, the sample cup and the crushing knife are separately arranged, and the crushing knife can enter the sample cup to crush samples and also enter the flushing barrel to be flushed and cleaned under the driving of the lifting mechanism and the rotating table. Compared with the structure in which the crushing container, the crushing knife and the motor are designed into a whole in the prior art, the crushing knife can be automatically washed, and the crushing machine is more convenient. The sample cup can be taken down and cleaned after the sampling is finished, the weight of the sample cup is lighter, the cleaning is more convenient, the motor does not need to be worried about water inflow, and the sample cup is safer.
Drawings
FIG. 1 is a schematic diagram of a sample pretreatment apparatus for food detection according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of a sample pretreatment apparatus for food detection according to one embodiment of the present invention;
FIG. 3 is an internal cross-sectional view of a sample pretreatment apparatus for food detection according to another embodiment of the present invention;
FIG. 4 is a partial schematic view of the first and second blade bodies according to one embodiment of the present invention;
FIG. 5 is a partial schematic view of one embodiment of the present invention with the first blade body and the second blade body open from the receiving slot;
FIG. 6 is a schematic view of the structure of a crushing blade according to one embodiment of the present invention;
FIG. 7 is a schematic diagram of a sampling assembly according to one embodiment of the present invention;
FIG. 8 is a schematic view of the sample placement assembly and sampling cup according to one embodiment of the present invention.
Reference numerals illustrate:
1. a sample pretreatment device for food detection;
10. a support assembly; 11. a base; 111. a sewage disposal pond; 112. a second drain pipe; 12. a rotary table; 13. a lifting mechanism; 131. a lifting rod; 132. a first extension rod; 133. a second extension rod; 134. a magnet;
20. a sample cup;
30. a flushing assembly; 31. a flushing cylinder; 32. flushing the spray head; 33. a first drain pipe; 34. a first electromagnetic valve;
40. a crushing assembly; 41. a crushing knife; 411. a knife handle; 412. a first cutter body; 413. a second cutter body; 414. an adjusting rod; 415. a telescopic driving member; 416. a receiving groove; 417. a guide groove; 418. a protective cover plate; 42. a first motor;
50. a sampling assembly; 51. a suction pipe; 52. a transfer pump; 53. a delivery tube; 54. a filter cartridge; 541. an iron ring;
60. a sample placement assembly; 61. a rotating frame; 62. a second motor;
70. a measuring cup;
80. the screen is manipulated.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "fixed," "secured" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to," "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on," "disposed on" another element, it can be directly on the other element or intervening elements may also be present. "plurality" refers to two and more numbers. "at least one" refers to one and more quantities. "number" refers to one or more numbers.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Referring to fig. 1 to 8, a sample pretreatment apparatus 1 for food detection according to an embodiment of the invention is described below.
Referring to fig. 1 to 3, an embodiment of the present invention provides a sample pretreatment apparatus 1 for food detection, which includes a support assembly 10, a sample cup 20, a washing assembly 30, a crushing assembly 40 and a sampling assembly 50. The support assembly 10 comprises a base 11, a rotary table 12 and a lifting mechanism 13, wherein the rotary table 12 is rotatably arranged on the base 11 around a vertical axis, a first placing station is formed on one side of the rotary table 12, a flushing station is formed on the other side of the rotary table 12, the lifting mechanism 13 comprises a lifting rod 131, a first extension rod 132 and a second extension rod 133 which are vertically arranged on the rotary table 12, the first extension rod 132 and the second extension rod 133 are oppositely arranged at the top end of the lifting rod 131, and the first extension rod 132 and the second extension rod 133 respectively extend along the horizontal direction; the sample cup 20 is arranged at the first placing station; the flushing assembly 30 comprises a flushing cylinder 31 and a flushing spray head 32, the flushing cylinder 31 is arranged at a flushing station and is provided with a flushing cavity which is opened upwards, the bottom of the flushing cavity is connected with a first drain pipe 33, and the flushing spray head 32 is arranged in the flushing cavity; the crushing assembly 40 includes a crushing blade 41 and a first motor 42 respectively provided at one end of the first extension rod 132, the first motor 42 being for driving the crushing blade 41 to rotate; the sampling assembly 50 is arranged on the second extension rod 133; when the crushing assembly 40 is above the first placement station, the sampling assembly 50 is above the flushing station, and when the crushing assembly 40 is above the flushing station, the sampling assembly 50 is above the first placement station.
Compared with the prior art, the sample pretreatment device 1 for food detection provided by the embodiment of the invention has the beneficial effects that:
the sample pretreatment apparatus 1 for food detection provided by the embodiment of the invention comprises a support assembly 10, a sample cup 20, a flushing assembly 30, a crushing assembly 40 and a sampling assembly 50. The supporting component 10 comprises a base 11, a rotary table 12 and a lifting mechanism 13, the sample cup 20 is used for containing fruit and vegetable samples to be crushed, the rotary table 12 can drive the crushing component 40 and the flushing component 30 to rotate, when the crushing component 40 rotates to the position above the sample cup 20, the sampling component 50 rotates to the position above the flushing component 30, the lifting rod 131 descends, the crushing knife 41 enters the sample cup 20 to crush the samples, and the sampling component 50 enters the flushing barrel 31 to be flushed and cleaned. After the sample is crushed, the lifting rod 131 is lifted, the rotary table 12 drives the crushing assembly 40 to move above the flushing cylinder 31, the sampling assembly 50 is moved above the sample cup 20, the lifting rod 131 is lowered, the sampling assembly 50 enters the sample cup 20 to sample the crushed liquid sample, the crushing cutter 41 enters the flushing cylinder 31 below, and the flushing nozzle 32 sprays cleaning liquid to flush the crushing cutter 41, so that the residual sample on the crushing cutter 41 is prevented from affecting the crushing treatment of the next sample.
According to the embodiment of the invention, the crushing assembly 40 and the sampling assembly 50 are arranged, the crushing assembly 40 can realize crushing treatment of samples under the driving of the rotary table 12 and the lifting mechanism 13, and the sampling assembly 50 can sample the crushed samples for subsequent detection operation. The supporting component 10, the crushing component 40 and the sampling component 50 act together, so that automatic crushing and automatic sampling of samples can be realized, and the degree of automation of sample pretreatment is improved.
In the embodiment of the invention, the sample cup 20 and the crushing knife 41 are separately arranged, and the crushing knife 41 can enter the sample cup 20 to crush samples and also can enter the flushing barrel 31 to be flushed and cleaned under the driving of the lifting mechanism 13 and the rotary table 12. Compared with the structure in which the crushing container, the crushing cutter 41 and the motor are designed into a whole in the prior art, the crushing cutter 41 can be automatically washed, and is more convenient. The sample cup 20 can be taken down and cleaned after the sampling is finished, the weight of the sample cup 20 is lighter, the cleaning is more convenient, the motor does not need to be worried about water inflow, and the sample cup is safer.
The sample pretreatment apparatus 1 for food detection provided by the embodiment of the invention can treat solid foods such as fruits, vegetables and the like to obtain an extracting solution required for detection.
The support assembly 10 in the embodiment of the invention comprises a base 11, a rotary table 12 and a lifting mechanism 13, wherein the base 11 is used for providing stable support for each part installed on the base 11, and the base 11 can be an iron or wooden table body or a frame body formed by welding and assembling sectional materials.
The rotary table 12 is used for driving the lifting mechanism 13, the flushing assembly 30 and the sampling assembly 50 to rotate, so that the positions of the flushing assembly 30 and the sampling assembly 50 are respectively switched between the first placing station and the flushing station. The rotary table 12 includes a table body and a rotation driving member, the table body is in running fit with the base 11, the lifting mechanism 13 is disposed on the table body, and the rotation driving member may be a motor or a hydraulic rotation motor for driving the table body to rotate along a vertical axis. The lifting mechanism 13 includes a lifting rod 131, a first extension rod 132 and a second extension rod 133, where the lifting rod 131 may be a hydraulic extension rod, a pneumatic push rod, an electric extension rod, etc., the first extension rod 132 and the second extension rod 133 are disposed along the same straight line, and the first extension rod 132 and the second extension rod 133 may be plastic rods or metal rods.
The sample cup 20 is detachably arranged at the first placing station, and the sample cup 20 can be made of glass, stainless steel, plastic, and the like and is used for containing fruit and vegetable samples to be crushed. In order to avoid damage to the crushing blade 41, fruit samples such as peaches, apricots and the like should be stoned and then put in. In order to avoid shaking of the sample cup 20 when the sample is broken, the first placing station may be provided with clamping means such as clamping jaws, vices or the like for clamping and fixing the sample cup 20. The bulk fruit and vegetable sample should be chopped or diced, and for samples with less moisture content, water or other reagents may be added to the sample cup 20 during preparation of the extract.
The flushing assembly 30 is used for flushing and cleaning the crushing cutter 41 or the sampling assembly 50 so as to avoid the sample residue from interfering with the next sample preparation and sampling. The flushing assembly 30 comprises a flushing cylinder 31 and a plurality of flushing nozzles 32, wherein the flushing nozzles 32 are communicated with a water inlet pipe, and the flushing nozzles 32 are arranged along the circumferential direction of the flushing cylinder 31 and are vertically provided with a plurality of layers so as to ensure thorough flushing. The flushing assembly 30 can be used for spraying purified water, propanol and other liquids during flushing.
The crushing assembly 40 includes a crushing blade 41 and a first motor 42, the crushing blade 41 is disposed vertically downward on the first extension rod 132, and the first motor 42 is disposed above the crushing blade 41 for driving the crushing blade 41 to rotate, thereby crushing the fruit and vegetable sample. The crushing cutter 41 can directly select the existing cutter head in the market, and the specific shape and structure of the crushing cutter 41 are not limited.
The sampling assembly 50 is mounted on the second extension rod 133 in this embodiment, and is capable of sucking the extraction liquid in the sample cup 20 and delivering the extraction liquid to a designated position when the sampling assembly 50 is moved to the sample cup 20. The extract can be delivered to a measuring cup 70, and the measuring cup 70 is placed in a refrigerator for refrigeration preservation to prevent deterioration, and is detected after being transported to a laboratory.
Referring to fig. 1 to 3, and 8, in some possible embodiments, the sample pretreatment apparatus 1 for food detection further includes a sample placement assembly 60, and the sample placement assembly 60 includes a rotating frame 61 and a second motor 62. The rotating frame 61 is rotatably arranged at the first placing station, and the rotating frame 61 is provided with a plurality of accommodating cavities along the circumferential direction of the rotating frame 61, wherein the accommodating cavities are used for accommodating the sample cups 20; a second motor 62 is provided to the base 11 for driving the rotating frame 61 to rotate about a vertical axis.
The sample placement module 60 provided in this embodiment is used for storing a plurality of sample cups 20, and is suitable for use in situations where multiple samples need to be preprocessed at the same time. The rotating frame 61 is provided with a plurality of accommodation chambers along its own circumference, and the second motor 62 can drive the rotating frame 61 to rotate. As shown in fig. 1 and 2, each time the rotary frame 61 rotates, the sample cup 20 stored in the next receiving chamber moves to the first placing position.
Referring to fig. 3 and 7, in some possible embodiments, the flushing assembly 30 further includes a first solenoid valve 34 disposed on the first drain pipe 33, and the first solenoid valve 34 controls whether the water in the flushing cylinder 31 is drained, so that the flushing assembly 30 has two cleaning modes, i.e., spraying and immersing.
When the first electromagnetic valve 34 is opened, the water or cleaning liquid sprayed from the flushing nozzle 32 can be discharged at any time, and the flushing device is suitable for spraying flushing. When the first electromagnetic valve 34 is closed, the water or the cleaning liquid sprayed from the flushing nozzle 32 can be accumulated in the flushing cylinder 31, so that the flushing device is suitable for soaking and cleaning, and meanwhile, the sampling assembly 50 is convenient for sucking the water or the cleaning liquid from the flushing cylinder 31 and flushing the internal pipeline of the flushing device.
Referring to fig. 1-3, and 7, in some possible embodiments, the sampling assembly 50 includes a pipette 51, a transfer pump 52, and a transfer tube 53. The suction pipe 51 is vertically downwardly provided to the second extension rod 133; the conveying pump 52 is arranged on the second extension rod 133, and the inlet end of the conveying pump 52 is connected with the suction pipe 51; the inlet end of the delivery pipe 53 is connected to the outlet end of the delivery pump 52.
In this embodiment, the sampling assembly 50 includes a suction tube 51, a delivery pump 52 and a delivery tube 53, when the sample extracting solution is required to be sucked, the lifting rod 131 drives the sampling assembly 50 to move downward, the suction tube 51 stretches into the sample cup 20, the delivery pump 52 operates to deliver the extracting solution from the delivery tube 53 to a corresponding container (such as a measuring cup 70). When cleaning is needed, the lifting rod 131 drives the sampling assembly 50 to move downwards, the suction pipe 51 stretches into the flushing cup and is positioned below the liquid level, the conveying pump 52 operates to convey water or cleaning liquid to a corresponding container (such as a garbage can) through the conveying pipe 53, and the internal pipeline is flushed through the water or cleaning liquid.
Referring to fig. 1 to 3, in some possible embodiments, the base 11 further forms a second placing station (in fig. 2 and 3, the measuring cup is placed in the second placing station) between the first placing station and the rotary table 12, and forms a drain tank 111 between the rotary table 12 and the rinsing station, and the drain tank 111 is communicated with a second drain pipe 112; when the sampling assembly 50 is positioned above the first placement station, the outlet end of the delivery tube 53 is positioned above the second placement station, and when the sampling assembly 50 is positioned above the rinse station, the outlet end of the delivery tube 53 is positioned above the drain basin 111.
The second placement station in this embodiment is used to place a measuring cup 70, and when the sampling assembly 50 is used to draw sample extraction liquid, the measuring cup 70 is capable of receiving the extraction liquid flowing out of the delivery tube 53. When the sampling assembly 50 is cleaned, the sump 111 is configured to receive water or cleaning fluid from the delivery tube 53.
Referring to fig. 1-3, and 7, in some possible embodiments, sampling assembly 50 further comprises a filter cartridge 54, filter cartridge 54 being disposed around the periphery of straw 51 and removably coupled to second extension rod 133, and a plurality of filter holes being provided in the bottom and side walls of filter cartridge 54.
In this embodiment, the filter cartridge 54 is provided on the outer periphery of the straw 51, so that the extraction liquid entering the straw 51 can be filtered, and the blockage of the straw 51 or the conveying pipe 53 by the fruit and vegetable residues due to incomplete crushing can be avoided. Canister 54 may be rinsed by rinsing assembly 30 or manually cleaned, and canister 54 may be removably mounted to second extension rod 133 for easy replacement and removal for cleaning.
Referring to fig. 7, in some possible embodiments, a mounting groove is formed in the lower surface of the second extension rod 133, the mounting groove is disposed around the suction pipe 51, an annular magnet 134 is disposed on the inner wall of the mounting groove, and an iron ring 541 is disposed on the outer circumference of the upper end of the filter cartridge 54.
In this embodiment, filter cartridge 54 is detachably connected to second extension rod 133, and is fixed by magnetic attraction, so that filter cartridge 54 can be conveniently installed and removed for flushing.
The crushing blade 41 enters the sample cup 20 from top to bottom, when the sample cup 20 contains the fruit and vegetable sample, the crushing blade 41 is blocked from moving downwards, and the crushing blade 41 may not reach the expected height. When the crushing blade 41 is not moved down to a predetermined position, the first motor 42 is started, and the sample may splash from the top opening of the sample cup 20 when the crushing blade 41 rotates, and may splash on the surface of the processing apparatus or the operator.
In order to solve the above-mentioned problems, referring to fig. 4 to 6, in some possible embodiments, the crushing cutter 41 includes a cutter handle 411, a first cutter body 412, a second cutter body 413, an adjusting rod 414 and a telescopic driving member 415, wherein the cutter handle 411 is vertically and downwardly arranged on the first extension rod 132, a plurality of accommodating grooves 416 are formed in the periphery of the cutter handle 411 along the circumferential direction thereof, the accommodating grooves 416 are arranged from top to bottom, and guide grooves 417 are formed in opposite side walls of the accommodating grooves 416 from top to bottom respectively; the plurality of first cutter bodies 412 are arranged in the accommodating groove 416 in a one-to-one correspondence manner, and the lower ends of the first cutter bodies 412 are hinged to the side walls of the accommodating groove 416; the plurality of second cutter bodies 413 are arranged in the accommodating grooves 416 in a one-to-one correspondence manner, the lower ends of the second cutter bodies 413 are hinged with the upper ends of the corresponding first cutter bodies 412, and the upper ends of the second cutter bodies 413 are in sliding fit with the guide grooves 417; the plurality of adjusting rods 414 are arranged on the tool handle 411 in a one-to-one correspondence manner, and the lower ends of the adjusting rods 414 are hinged with the upper end of the second tool body 413; the telescopic driving piece 415 is arranged on the knife handle 411 and is used for driving the adjusting rod 414 to move up and down.
The crushing blade 41 in this embodiment includes a blade handle 411, a first blade body 412, a second blade body 413, an adjustment lever 414, and a telescopic drive member 415. The telescopic driving piece 415 and the adjusting rod 414 are used for pushing the first blade body 412 and the second blade body 413 to open and close, so that the first blade body 412 and the second blade body 413 can be accommodated in the accommodating groove 416 (as shown in fig. 4) and can be opened from the accommodating groove 416 (as shown in fig. 5).
When the crushing cutter 41 moves downwards, the telescopic driving piece 415 drives the adjusting rod 414 to move upwards, so that the first cutter body 412 and the second cutter body 413 are completely accommodated in the accommodating groove 416 of the cutter handle 411 as shown in fig. 4, and the crushing cutter 41 moves downwards more easily. The telescopic driving member 415 may be a driving structure such as a cylinder or an electric telescopic rod.
To further reduce the obstruction of the downward movement of the crushing blade 41, the lower end of the blade handle 411 may be designed in a rounded or tapered shape.
Referring to fig. 3 and 6, in some possible embodiments, the handle 411 is further provided with a protective cover 418, and when the first blade 412 and the second blade 413 are accommodated in the sample cup 20, the protective cover 418 covers the opening of the sample cup 20, so as to prevent the liquid from splashing out of the opening during crushing or flushing.
In some possible embodiments, the telescopic driving member 415 is an air cylinder, and the operation of the telescopic driving member 415, the turntable 12, the lifting mechanism 13, the flushing assembly 30, the first motor 42, the second motor 62, and the like can be controlled by the control screen 80. The manipulation screen 80 is mounted on the base 11.
It will be appreciated that the portions of the foregoing embodiments may be freely combined or omitted to form different combined embodiments, and the details of the respective combined embodiments are not described herein, so that after the description, the present disclosure may be considered as having described the respective combined embodiments, and the different combined embodiments can be supported.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. Sample preprocessing device for food detection, characterized by, include:
the support assembly comprises a base, a rotary table and a lifting mechanism, wherein the rotary table is rotatably arranged on the base around a vertical axis, a first placing station is formed on one side of the rotary table, and a flushing station is formed on the other side of the rotary table; the lifting mechanism comprises a lifting rod arranged on the rotary table, a first extending rod and a second extending rod, the first extending rod and the second extending rod are oppositely arranged at the top end of the lifting rod, and the first extending rod and the second extending rod extend along the horizontal direction respectively;
the sample cup is arranged at the first placing station;
the flushing assembly comprises a flushing cylinder and a flushing spray head, the flushing cylinder is arranged at the flushing station and is provided with a flushing cavity with an upward opening, the bottom of the flushing cavity is connected with a first drain pipe, and the flushing spray head is arranged in the flushing cavity;
the crushing assembly comprises a crushing cutter and a first motor which are respectively arranged at one end of the first extension rod, and the first motor is used for driving the crushing cutter to rotate; and
the sampling assembly is arranged on the second extension rod;
the sampling assembly is located above the flushing station when the crushing assembly is located above the first placing station, and the sampling assembly is located above the first placing station when the crushing assembly is located above the flushing station.
2. The sample pretreatment apparatus for food detection of claim 1, further comprising a sample placement assembly comprising:
the rotating frame is rotatably arranged at the first placing station, and a plurality of accommodating cavities are formed in the rotating frame along the circumferential direction of the rotating frame and are used for accommodating the sample cups; and
and the second motor is arranged on the base and used for driving the rotating frame to rotate around a vertical axis.
3. The sample pretreatment apparatus for food testing according to claim 1, wherein said flushing assembly further comprises a first solenoid valve disposed in said first drain.
4. The sample pretreatment apparatus for food testing according to claim 1, wherein said sampling assembly comprises:
the suction pipe is vertically downwards arranged on the second extension rod;
the conveying pump is arranged on the second extension rod, and the inlet end of the conveying pump is connected with the suction pipe; and
and the inlet end of the conveying pipe is connected with the outlet end of the conveying pump.
5. The sample pretreatment apparatus for food detection according to claim 4, wherein said base further comprises a second placement station between said first placement station and said rotary table, and a drain tank is further formed between said rotary table and said rinse station, said drain tank being in communication with a second drain pipe;
when the sampling assembly is located above the first placing station, the outlet end of the conveying pipe is located above the second placing station, and when the sampling assembly is located above the flushing station, the outlet end of the conveying pipe is located above the sewage disposal tank.
6. The sample pretreatment apparatus for food testing according to claim 4, wherein said sampling assembly further comprises a cartridge, said cartridge being disposed around said straw and removably coupled to said second extension rod, said cartridge having a bottom and a sidewall with a plurality of filter openings.
7. The sample pretreatment apparatus for food detection according to claim 6, wherein a mounting groove is formed in a lower surface of said second extension rod, said mounting groove is provided around said straw, an annular magnet is provided on an inner wall of said mounting groove, and an iron ring is provided on an outer periphery of an upper end of said filter cartridge.
8. The sample pretreatment apparatus for food detection according to claim 1, wherein said crushing blade comprises:
the cutter handle is vertically downwards arranged on the first extension rod, a plurality of accommodating grooves are formed in the periphery of the cutter handle along the circumferential direction of the cutter handle, the accommodating grooves are formed from top to bottom, and guide grooves are formed in two opposite side walls of the accommodating grooves from top to bottom respectively;
the plurality of first cutter bodies are arranged in the accommodating groove in a one-to-one correspondence manner, and the lower ends of the first cutter bodies are hinged to the side walls of the accommodating groove;
the plurality of second cutter bodies are arranged in the accommodating grooves in a one-to-one correspondence manner, the lower ends of the second cutter bodies are hinged with the corresponding upper ends of the first cutter bodies, and the upper ends of the second cutter bodies are in sliding fit with the guide grooves;
the adjusting rods are arranged on the tool handle in a one-to-one correspondence manner, and the lower ends of the adjusting rods are hinged with the upper end of the second tool body; and
and the telescopic driving piece is arranged on the knife handle and used for driving the adjusting rod to move up and down.
9. The sample pretreatment apparatus for food detection according to claim 8, wherein said handle is further provided with a protective cover plate, said protective cover plate covering an opening of said sample cup when said first blade body and said second blade body are accommodated in said sample cup.
10. The sample pretreatment apparatus for food testing according to claim 8, wherein said telescoping drive member is a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310729590.0A CN116558924A (en) | 2023-06-19 | 2023-06-19 | Sample pretreatment device for food detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310729590.0A CN116558924A (en) | 2023-06-19 | 2023-06-19 | Sample pretreatment device for food detection |
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| Publication Number | Publication Date |
|---|---|
| CN116558924A true CN116558924A (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310729590.0A Pending CN116558924A (en) | 2023-06-19 | 2023-06-19 | Sample pretreatment device for food detection |
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| Country | Link |
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| CN (1) | CN116558924A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116990102A (en) * | 2023-09-28 | 2023-11-03 | 潍坊市检验检测中心 | Prefabricated dish food preservative detection device |
| CN118022921A (en) * | 2024-04-12 | 2024-05-14 | 昆明品世食品有限公司 | Automatic crushing device and crushing method for food detection |
-
2023
- 2023-06-19 CN CN202310729590.0A patent/CN116558924A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116990102A (en) * | 2023-09-28 | 2023-11-03 | 潍坊市检验检测中心 | Prefabricated dish food preservative detection device |
| CN116990102B (en) * | 2023-09-28 | 2023-12-15 | 潍坊市检验检测中心 | Prefabricated dish food preservative detection device |
| CN118022921A (en) * | 2024-04-12 | 2024-05-14 | 昆明品世食品有限公司 | Automatic crushing device and crushing method for food detection |
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