CN115356169A - Heavy metal detection device and detection method for agricultural products - Google Patents
Heavy metal detection device and detection method for agricultural products Download PDFInfo
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- CN115356169A CN115356169A CN202210601244.XA CN202210601244A CN115356169A CN 115356169 A CN115356169 A CN 115356169A CN 202210601244 A CN202210601244 A CN 202210601244A CN 115356169 A CN115356169 A CN 115356169A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
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Abstract
The invention discloses an agricultural product heavy metal detection device, which comprises a base plate, a juicing barrel, a sample piston pipe and a reagent piston pipe, wherein a first support and a second support are fixedly arranged on the upper surface of the base plate, the juicing barrel is fixedly arranged on the upper surface of the base plate, a top cover is buckled at the top of the juicing barrel, a first beam frame and a second beam frame are fixedly arranged on the upper surface of the top cover, a driving gear is rotatably arranged between the first beam frame and the upper surface of the top cover, a driven gear is rotatably arranged between the second beam frame and the top cover, the driving gear is meshed with the driven gear, and a handle is rotatably arranged on the upper surface of the first beam frame; carry out the extraction of sample juice with agricultural product through a juice section of thick bamboo, then save through sample piston pipe, can carry out effectual nominal to make things convenient for the injection according to the ratio of detect reagent, thereby conveniently carry out effective mixing, keep the juice effect simultaneously based on two-layer sieve in the juice section of thick bamboo, with the assurance of sample juice liquid measure.
Description
Technical Field
The invention belongs to the technical field of agricultural product quality detection, and particularly relates to an agricultural product heavy metal detection device and detection method.
Background
Agricultural product is important basic production raw materials, its quality itself has fundamental influence to subsequent production processing, along with the development of industrialization, the farmland also can receive the pollution, the harm of dominance is growth and fruit setting to crops, and recessive heavy metal can be because of crops itself can't decompose and arrange outward, thereby the accumulation is in crops, thereby to the monitoring mode of agricultural product itself, because the water content of different crops is different, then the juice collection volume is also different, this addition that can lead to follow-up reagent is inaccurate, thereby cause the influence to the testing result, for this reason we provide an agricultural product heavy metal detection device and detection method.
Disclosure of Invention
The invention aims to provide a device and a method for detecting heavy metal in agricultural products, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an agricultural product heavy metal detection device comprises a base plate, a juicing barrel, a sample piston tube and a reagent piston tube, wherein a first support and a second support are fixedly arranged on the upper surface of the base plate, the juicing barrel is fixedly arranged on the upper surface of the base plate, a top cover is buckled at the top of the juicing barrel, a first beam frame and a second beam frame are fixedly arranged on the upper surface of the top cover, a driving gear is rotatably arranged between the first beam frame and the upper surface of the top cover, a driven gear is rotatably arranged between the second beam frame and the top cover, the driving gear is mutually meshed with the driven gear, a handle is rotatably arranged on the upper surface of the first beam frame, the handle is fixedly connected with the driving gear, a crushing frame is fixedly arranged in the middle of the driven gear, the crushing part of the crushing frame is positioned in the juice extracting barrel, the driven shaft rod is positioned and installed in the shaft barrel of the crushing frame, the lower pressure plate is installed at the upper end of the driven shaft rod in a rotating mode, the sample piston rod is clamped in the first support, the reagent piston tube is clamped in the second support, a three-way valve is fixedly installed on a nozzle of the sample piston tube and a nozzle of the reagent piston tube, the sample piston tube is communicated with the liquid discharge tube and the mixing tube through corresponding three-way valves, the reagent piston tube is communicated with the mixing tube through one interface of the corresponding three-way valves, the mixing tube is fixedly installed at the rear end of the detector, the detector is fixedly installed on the upper surface of the base plate, and a piston push rod is installed in the mixing tube in a sliding mode.
Preferably, a first screen, a second screen and a liquid collecting hopper are fixedly mounted in the juice extracting barrel from top to bottom in sequence, the first screen is located at the lower end of the crushing frame, a conical port of the liquid collecting hopper is communicated with the inner end of the liquid discharging pipe, sliding shaft rods are slidably mounted in the centers of the first screen and the second screen, the upper ends of the sliding shaft rods are embedded with the lower end of the driven shaft rod, an extrusion impeller is fixedly mounted in the middle of each sliding shaft rod and located between the first screen and the second screen, and a second return spring is clamped between the lower end of each sliding shaft rod and the conical end of the liquid collecting hopper.
Preferably, a first return spring is clamped between the lower pressure plate and the second support, and the driven shaft rod is sleeved with the first return spring.
Preferably, first support is the same with second supporting structure, first support includes the support frame, the horizontal board of support frame upper end fixed mounting, horizontal board fixed mounting has the push rod motor that runs through the plate body, the floating end of push rod motor is located the lower extreme of horizontal board, the front fixed surface of support frame installs the holding frame, the last fixed surface of horizontal board installs the singlechip, the push rod motor coincides with the axis of axis and holding frame.
Preferably, the extrusion impeller includes solid fixed ring, gu fixed ring's periphery welding has the radiation frame that the circumference distributes, the periphery cover of radiation frame is equipped with the swing blade.
Preferably, the mesh number of the first screen is smaller than that of the second screen.
Preferably, the residual interface of the three-way valve corresponding to the reagent piston pipe is vacant.
Preferably, a touch plate is fixedly installed at the floating end of the push rod motor, and the touch plate and the corresponding piston are fixedly installed.
A detection method of an agricultural product heavy metal detection device comprises the following steps:
step one, introducing the agricultural products with detection into a juice extracting barrel, driving an internal crushing frame to rotate through a hand crank, crushing the agricultural products, and mixing a solvent to obtain mixed slurry;
step two, the mixed slurry falls into the upper surface of a second sieve plate through a first sieve screen, a driven shaft rod is driven to descend through a lower pressing disc at the moment, a sliding shaft rod and an extrusion impeller on the sliding shaft rod are driven to rotate and descend, the extrusion impeller presses the mixed slurry through rotation to obtain sample juice, and the sample juice falls into a liquid collecting hopper through the second sieve screen and is led out through a liquid discharge pipe;
thirdly, the sample piston tube works through a push rod motor on the first support, and sample juice in the liquid discharge tube is extracted and stored;
fourthly, the reagent piston pipe works through a push rod motor on the second support, and then the reagent is extracted and stored through a corresponding three-way valve idle interface;
fifthly, based on the standard weight, the sample piston tube and the reagent piston tube respectively guide quantitative sample juice and a reagent into the mixing tube;
and step six, introducing the mixed liquid in the mixing pipe into a detector, and detecting the test liquid to obtain a result.
Compared with the prior art, the invention has the beneficial effects that:
carry out the extraction of sample juice with agricultural product through a juice section of thick bamboo, then save through sample piston pipe, can carry out effectual nominal to make things convenient for the injecting according to the ratio of detect reagent, thereby conveniently carry out effective mixing, keep the effect of squeezing the juice simultaneously based on two-layer sieve in the juice section of thick bamboo, with the assurance of sample juice liquid measure.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the juicer cartridge of the present invention;
FIG. 3 is a schematic perspective view of the top cover of the present invention;
FIG. 4 is a schematic view of the combined structure of the detector and the mixing tube according to the present invention;
FIG. 5 is a schematic view of a first bracket according to the present invention;
fig. 6 is a top view of the pressing impeller of the present invention.
In the figure: 1. the juicer comprises a base plate, 2, a juicer barrel, 3, a detector, 4, a top cover, 5, a sample piston tube, 6, a reagent piston tube, 7, a first support, 701, a support frame, 702, a transverse plate, 703, a push rod motor, 704, a clamping frame, 705, a single chip microcomputer, 8, a second support, 9, a mixing tube, 10, a piston push rod, 11, a first beam frame, 12, a second beam frame, 13, a hand crank, 14, a driving gear, 15, a driven gear, 16, a driven shaft lever, 17, a lower pressing disc, 18, a first return spring, 19, a crushing frame, 20, a first screen, 21, a sliding shaft lever, 22, a second screen, 23, a collecting hopper, 24, a squeezing impeller, 241, a fixing ring, 242, a radiation frame, 243, a swinging blade, 25, a second return spring, 26 and a liquid discharge tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-6, the present invention provides a technical solution: an agricultural product heavy metal detection device comprises a base plate 1, a juicing barrel 2, a sample piston tube 5 and a reagent piston tube 6, wherein a first support 7 and a second support 8 are fixedly installed on the upper surface of the base plate, the juicing barrel 2 is fixedly installed on the upper surface of the base plate 1, a top cover 4 is buckled on the top of the juicing barrel 2, a first beam frame 11 and a second beam frame 12 are fixedly installed on the upper surface of the top cover 4, a driving gear 14 is rotatably installed between the upper surfaces of the first beam frame 11 and the top cover 4, a driven gear 15 is rotatably installed between the second beam frame 12 and the top cover 4, the driving gear 14 is meshed with the driven gear 15, a handle 13 is rotatably installed on the upper surface of the first beam frame 11, the handle 13 is fixedly connected with the driving gear 14, a crushing frame 19 is fixedly installed in the middle of the driven gear 15, the crushing part of the crushing frame 19 is positioned in the juice extracting barrel 2, a driven shaft rod 16 is positioned in a shaft barrel of the crushing frame 19, a lower pressing plate 17 is rotatably arranged at the upper end of the driven shaft rod 16, the sample piston tube 5 is clamped in the first support 7, the reagent piston tube 6 is clamped in the second support 8, three-way valves are fixedly arranged on a nozzle of the sample piston tube 5 and a nozzle of the reagent piston tube 6, the sample piston tube 5 is communicated with the liquid discharge tube 26 and the mixing tube 9 through corresponding three-way valves, the reagent piston tube 6 is communicated with the mixing tube 9 through one interface of the corresponding three-way valves, the mixing tube 9 is fixedly arranged at the rear end of the detector 3, the detector 3 is fixedly arranged on the upper surface of the base plate 1, and a piston push rod 10 is slidably arranged in the mixing tube 9.
The mounting base that bedplate 1 is whole device, juicing cylinder 2 smashes agricultural product through built-in crushing frame 19 and gets the juice, sample piston tube 5 supports the installation through first support 7 and second support 8 with reagent piston tube 6, and control it based on first support 7 and the drive structure of second support 8, hand crank 13 makes driving gear 14 rotate through self rotation, then drive driven gear 15 smashes the stirring with crushing frame 19, the sample juice of drainpipe 26 after will squeezing is derived, then save through sample piston tube 5, reagent passes through reagent piston tube 6 and saves, and the flow direction of sample juice and the flow direction of reagent control through the three-way valve, mixing tube 9 mixes sample juice and reagent, thereby direction detector 3, carry out effectual detection.
Specifically, a first screen 20, a second screen 22 and a liquid collecting hopper 23 are fixedly mounted in the juice extracting barrel 2 from top to bottom in sequence, the first screen 20 is located at the lower end of the crushing frame 19, a conical port of the liquid collecting hopper 23 is communicated with the inner end of a liquid discharging pipe 26, sliding shaft rods 21 are slidably mounted at the centers of the first screen 20 and the second screen 22, the upper ends of the sliding shaft rods 21 are embedded with the lower end of the driven shaft rod 16, an extrusion impeller 24 is fixedly mounted in the middle of the sliding shaft rods 21, the extrusion impeller 24 is located between the first screen 20 and the second screen 22, and a second return spring 25 is clamped between the lower end of the sliding shaft rod 21 and the conical end of the liquid collecting hopper 23.
Specifically, a first return spring 18 is clamped between the lower pressure plate 17 and the second bracket 8, and the driven shaft 16 is sleeved with the first return spring 18.
The second reset spring 25 can be effectively matched, and the effective reset effect is guaranteed.
Specifically, first support 7 is the same with second support 8 structure, first support 7 includes support frame 701, support frame 701 upper end fixed mounting transverse plate 702, transverse plate 702 fixed mounting has the push rod motor 703 that runs through the plate body, the floating end of push rod motor 703 is located transverse plate 702's lower extreme, support frame 701's front surface fixed mounting has clamping frame 704, transverse plate 702's last fixed surface installs singlechip 705, push rod motor 703 and the coincidence of axis and clamping frame 704's axis.
Through the same structure nature of first support 7 and second support 8, can guarantee the commonality of device, support frame 701 is the major structure, and horizontal board 702 provides the suspension installation basis for push rod motor 703, and push rod motor 703 carries out reciprocal drawing and promotion through the functionality of self, and clamping frame 704 carries out the centre gripping to sample piston pipe 5 and reagent piston pipe 6, and singlechip 705 carries out the motion to push rod motor 703 and controls.
Specifically, the squeezing impeller 24 includes a fixing ring 241, a radiation frame 242 circumferentially distributed is welded to the outer periphery of the fixing ring 241, and a swing vane 243 is sleeved on the outer periphery of the radiation frame 242.
The fixing ring 241 is mounted on the mounting base, the radiation frame 242 realizes the suspension mounting of the swing vane 243, and the swing vane 243 can smooth and squeeze the mixture on the second screen 22 through automatic swing, so as to further extract the sample juice.
Specifically, the mesh number of the first mesh 20 is smaller than that of the second mesh 22.
The extrusion screening effect is guaranteed.
Specifically, the remaining port of the three-way valve corresponding to the reagent piston tube 6 is left vacant.
And the injection of external reagents is facilitated by the vacant positions of the rest interfaces.
Specifically, a touch panel is fixedly mounted at a floating end of the push rod motor 703, and the touch panel is fixedly mounted with a corresponding piston.
The connection and the driving effect can be effectively kept through the touch panel.
A detection method of an agricultural product heavy metal detection device comprises the following steps:
step one, introducing the agricultural products with detection into a juice extracting barrel 2, driving an internal crushing rack 19 to rotate through a hand crank 13, crushing the agricultural products, and mixing a solvent to obtain mixed slurry;
step two, the mixed slurry falls into the upper surface of a second sieve plate through a first screen mesh 20, at the moment, a driven shaft lever 16 is driven to move downwards through a lower pressing disc 17, a sliding shaft lever 21 and an extrusion impeller 24 on the sliding shaft lever rotate and drive the sliding shaft lever to move downwards, the extrusion impeller 24 presses the mixed slurry through rotation to obtain sample juice, and the sample juice falls into a liquid collecting hopper 23 through a second screen mesh 22 and is led out through a liquid discharge pipe 26;
step three, the sample piston pipe 5 works through a push rod motor 703 on the first bracket 7 to extract and store the sample juice in the liquid discharge pipe 26;
fourthly, the reagent piston tube 6 works through a push rod motor 703 on the second bracket 8, and then the reagent is extracted and stored through a corresponding vacant interface of the three-way valve;
step five, based on the standard weight, the sample piston tube 5 and the reagent piston tube 6 respectively guide quantitative sample juice and reagents into a mixing tube 9;
and step six, introducing the mixed liquid in the mixing pipe 9 into the detector 3, and detecting the test liquid to obtain a result.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides an agricultural product heavy metal detection device, includes bed plate (1), a juice extraction section of thick bamboo (2), sample piston pipe (5) and reagent piston pipe (6), its characterized in that: the upper surface of the base plate is fixedly provided with a first support (7) and a second support (8), the juicing barrel (2) is fixedly arranged on the upper surface of the base plate (1), the top of the juicing barrel (2) is provided with a top cover (4) in a buckling manner, the upper surface of the top cover (4) is fixedly provided with a first beam frame (11) and a second beam frame (12), a driving gear (14) is rotatably arranged between the first beam frame (11) and the upper surface of the top cover (4), a driven gear (15) is rotatably arranged between the second beam frame (12) and the top cover (4), the driving gear (14) and the driven gear (15) are mutually meshed, the upper surface of the first beam frame (11) is rotatably provided with a hand crank (13), the hand crank (13) is fixedly connected with the driving gear (14), the middle part of the driven gear (15) is fixedly provided with a crushing frame (19), the crushing part of the crushing frame (19) is positioned in the juicing barrel (2), the shaft barrel of the crushing frame (19) is provided with a driven shaft rod (16), the upper end of the shaft rod (16) is rotatably provided with a lower end of the shaft rod (17), a piston rod (17) is rotatably arranged in the sample clamping support (6), and a sample clamping piston rod (6) is positioned in the three-way valve (6) and a sample clamping mechanism, sample piston pipe (5) are through corresponding three-way valve intercommunication fluid-discharge tube (26) and hybrid tube (9), reagent piston pipe (6) are through one of them interface intercommunication hybrid tube (9) of the three-way valve that corresponds, the rear end of hybrid tube (9) fixed mounting and detector (3), detector (3) fixed mounting is in the upper surface of bed plate (1), slidable mounting has piston push rod (10) in hybrid tube (9).
2. The agricultural product heavy metal detection device according to claim 1, wherein a first screen (20), a second screen (22) and a liquid collecting bucket (23) are fixedly installed in the juice extracting barrel (2) from top to bottom in sequence, the first screen (20) is located at the lower end of the crushing frame (19), a conical port of the liquid collecting bucket (23) is communicated with the inner end of the liquid discharge pipe (26), sliding shaft rods (21) are installed in the centers of the first screen (20) and the second screen (22) in a sliding mode, the upper ends of the sliding shaft rods (21) are embedded with the lower end of the driven shaft rod (16), an extrusion impeller (24) is fixedly installed in the middle of the sliding shaft rods (21), the extrusion impeller (24) is located between the first screen (20) and the second screen (22), and a second return spring (25) is clamped between the lower ends of the sliding shaft rods (21) and the conical end of the liquid collecting bucket (23).
3. The agricultural product heavy metal detection device according to claim 1, characterized in that a first return spring (18) is clamped between the lower pressure plate (17) and the second bracket (8), and the first return spring (18) is sleeved on the driven shaft (16).
4. The agricultural product heavy metal detection device of claim 1, wherein the first support (7) and the second support (8) are identical in structure, the first support (7) comprises a support frame (701), a transverse plate (702) is fixedly mounted at the upper end of the support frame (701), a push rod motor (703) penetrating through a plate body is fixedly mounted on the transverse plate (702), the floating end of the push rod motor (703) is located at the lower end of the transverse plate (702), a clamping frame (704) is fixedly mounted on the front surface of the support frame (701), a single chip microcomputer (705) is fixedly mounted on the upper surface of the transverse plate (702), and the push rod motor (703) and the axis coincide with the axis of the clamping frame (704).
5. The agricultural product heavy metal detection device of claim 1, wherein the squeezing impeller (24) comprises a fixing ring (241), a radiation frame (242) distributed circumferentially is welded on the periphery of the fixing ring (241), and a swinging blade (243) is sleeved on the periphery of the radiation frame (242).
6. The agricultural product heavy metal detection device according to claim 2, wherein the mesh number of the first screen (20) is smaller than that of the second screen (22).
7. The heavy metal detection device for agricultural products of claim 1, wherein the residual port of the three-way valve corresponding to the reagent piston tube (6) is vacant.
8. The agricultural product heavy metal detection device of claim 1, wherein a touch plate is fixedly mounted at a floating end of the push rod motor (703), and the touch plate and the corresponding piston are fixedly mounted.
9. The detection method of the agricultural product heavy metal detection device based on claim 1, characterized by comprising the following steps: the method comprises the following steps:
step one, introducing the agricultural products with detection into a juice extracting barrel (2), driving an internal crushing rack (19) to rotate through a hand crank (13), crushing the agricultural products, and mixing a solvent to obtain mixed slurry;
step two, the mixed slurry falls into the upper surface of a second sieve plate through a first screen (20), at the moment, a driven shaft rod (16) is driven to move downwards through a lower pressing disc (17), a sliding shaft rod (21) and an extrusion impeller (24) on the sliding shaft rod rotate and drive the sliding shaft rod to move downwards, the extrusion impeller (24) presses the mixed slurry through rotation to obtain sample juice, and the sample juice falls into a liquid collecting hopper (23) through a second screen (22) and is led out through a liquid discharging pipe (26);
thirdly, the sample piston pipe (5) works through a push rod motor (703) on the first support (7) to extract and store sample juice in a liquid discharge pipe (26);
fourthly, the reagent piston pipe (6) works through a push rod motor (703) on the second support (8), and then the reagent is extracted and stored through a corresponding vacant port of the three-way valve;
fifthly, based on the standard weight, the sample piston tube (5) and the reagent piston tube (6) respectively guide quantitative sample juice and reagent into the mixing tube (9);
and step six, introducing the mixed liquid in the mixing pipe (9) into a detector (3), and detecting the test liquid to obtain a result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210601244.XA CN115356169A (en) | 2022-09-29 | 2022-09-29 | Heavy metal detection device and detection method for agricultural products |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210601244.XA CN115356169A (en) | 2022-09-29 | 2022-09-29 | Heavy metal detection device and detection method for agricultural products |
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| Publication Number | Publication Date |
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| CN115356169A true CN115356169A (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210601244.XA Pending CN115356169A (en) | 2022-09-29 | 2022-09-29 | Heavy metal detection device and detection method for agricultural products |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116297344A (en) * | 2023-04-25 | 2023-06-23 | 天津海关动植物与食品检测中心 | Molecularly imprinted SPR chip and SPR instrument for detecting patulin |
-
2022
- 2022-09-29 CN CN202210601244.XA patent/CN115356169A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116297344A (en) * | 2023-04-25 | 2023-06-23 | 天津海关动植物与食品检测中心 | Molecularly imprinted SPR chip and SPR instrument for detecting patulin |
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