CN210037394U - Pesticide residue detection pretreatment all-in-one machine - Google Patents
Pesticide residue detection pretreatment all-in-one machine Download PDFInfo
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- CN210037394U CN210037394U CN201920825811.3U CN201920825811U CN210037394U CN 210037394 U CN210037394 U CN 210037394U CN 201920825811 U CN201920825811 U CN 201920825811U CN 210037394 U CN210037394 U CN 210037394U
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Abstract
The utility model provides a pesticide residue detection and pretreatment integrated machine, which comprises a supernatant extraction device, a nitrogen blowing instrument and a solution transfer device; the supernatant extracting device comprises a vibration table and a sample tube placing table arranged on the vibration table; the sample tube placing table is provided with a plurality of concave holes for inserting sample tubes; the nitrogen blowing instrument comprises a nitrogen blowing table, a nitrogen blowing frame arranged above the nitrogen blowing table, and a first lifting mechanism for driving the nitrogen blowing frame to lift; the nitrogen blowing platform is provided with a plurality of jacks for inserting test tubes, and the nitrogen blowing frame is provided with a nitrogen blowing pipe corresponding to each jack; the solution transferring device is used for transferring the supernatant in the sample tube to the corresponding test tube. The pretreatment all-in-one machine can greatly shorten the time of contacting a human body with toxic and harmful reagents in the pretreatment process of pesticide residue detection, and reduce the errors caused by manual operation.
Description
Technical Field
The utility model relates to a pesticide residue check out test set field, in particular to pesticide residue detects pretreatment all-in-one.
Background
Before detecting pesticide residues in the items such as organic phosphorus and organic chlorine gas phase detection, a sample generally needs to be pretreated, and the pretreatment mainly comprises two steps of supernatant extraction and concentration. The process of extracting the supernatant generally comprises the steps of manually putting a sample and a solvent into a sample tube, manually shaking the sample tube to fully dissolve components in the sample, and finally standing for precipitation, wherein the upper layer of the solution is the required supernatant; the concentration process is generally that supernatant is manually put into a nitrogen blowing instrument and is evaporated and concentrated by the nitrogen blowing instrument.
In the pretreatment process, the time for human bodies to contact toxic and harmful reagents is long, so that the human bodies are not beneficial to the health of detection personnel, and errors are easily introduced in manual operation to influence the accuracy of detection results of subsequent detection.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art's weak point, an object of the utility model is to provide a pesticide residue detects preceding processing all-in-one, aim at solving the problem that the human body contacts the problem of error is introduced easily with manual operation for a long time of poisonous and harmful reagent in the current preceding processing procedure.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a pesticide residue detection and pretreatment integrated machine comprises a supernatant extraction device, a nitrogen blowing instrument and a solution transfer device; the supernatant extracting device comprises a vibration table and a sample tube placing table arranged on the vibration table; the sample tube placing table is provided with a plurality of concave holes for inserting sample tubes; the nitrogen blowing instrument comprises a nitrogen blowing table, a nitrogen blowing frame arranged above the nitrogen blowing table, and a first lifting mechanism for driving the nitrogen blowing frame to lift; the nitrogen blowing platform is provided with a plurality of jacks for inserting test tubes, and the nitrogen blowing frame is provided with a nitrogen blowing pipe corresponding to each jack; the solution transferring device is used for transferring the supernatant in the sample tube to the corresponding test tube.
In the pesticide residue detection and pretreatment integrated machine, concave holes of the sample tube placing table and jacks on the nitrogen blowing table are arranged in a one-to-one correspondence manner; the solution transfer device comprises a sample suction needle frame which can move back and forth between a sample tube placing table and a nitrogen blowing table, and a sample suction needle is arranged at the position corresponding to each concave hole on the sample suction needle frame.
In the pesticide residue detection pretreatment integrated machine, the solution transfer device also comprises a base, a sliding seat arranged on the base in a sliding manner, and a needle frame driving mechanism for driving the sliding seat to move between the sample tube placing table and the nitrogen blowing table; the sample suction needle frame is fixedly connected with the sliding seat.
The pesticide residue detection and pretreatment integrated machine also comprises a re-solution bottle filled with a re-solution; the sample sucking needle comprises a needle holder and a needle head which can stretch out and draw back in the needle holder, and the needle holder is connected with the reconstituted solution bottle through a connecting pipe.
The pesticide residue detection and pretreatment integrated machine further comprises a cleaning liquid bottle filled with cleaning liquid, a buffer liquid bottle filled with buffer liquid, and a waste liquid tray for storing waste liquid; the needle holder is connected with a cleaning liquid bottle and a buffer liquid bottle through a connecting pipe, and the waste liquid tray is arranged below the sample sucking needle frame.
In the integrated machine for pesticide residue detection and pretreatment, the supernatant extracting device further comprises a cover plate arranged above the sample tube placing table in a liftable manner, and a second lifting mechanism for driving the cover plate to lift; the cover plate is used for covering the upper end opening of the sample tube.
In the pesticide residue detection pretreatment all-in-one machine, the bottom of the cover plate is provided with a groove corresponding to each concave hole, and the upper end of the sample tube extends into the groove.
In the pesticide residue detection pretreatment all-in-one machine, the supernatant extraction device further comprises a travelling mechanism for moving the sample tube placing table out of the coverage range of the cover plate.
In the pesticide residue detection pretreatment integrated machine, the vibration table comprises an upper plate, a middle plate and a bottom plate which are arranged in parallel; the sample tube placing table, the second lifting mechanism and the travelling mechanism are all arranged on the upper plate; the middle plate is fixedly connected with the upper plate through a connecting column, and a plurality of vibration motors are arranged on the middle plate; a plurality of elastic buffer parts are connected between the middle plate and the bottom plate.
In the pesticide residue detection and pretreatment all-in-one machine, at least two vibration motors which are perpendicular to each other are arranged on the middle plate.
Has the advantages that:
the utility model provides a pretreatment all-in-one is detected to pesticide residue, during the use, after putting into the sample cell placement platform to the sample cell that is equipped with sample solution, make the solution vibrate evenly by the shaking table, then the stationary sedimentation obtains the supernatant, again by the automatic transfer of solution transfer device supernatant to inserting in the test tube of nitrogen blowing platform, blow the concentration to its nitrogen by the nitrogen blowpipe at last; in the process, manual operation is needed only when the sample tube is placed, and other processes do not need manual participation, so that the time of contacting the human body with the toxic and harmful reagent is greatly shortened, and errors caused by manual operation can be reduced.
Drawings
Fig. 1 is the utility model provides a pair of pesticide residue detects before processing all-in-one's structural schematic diagram.
Fig. 2 is the utility model provides an in pesticide residue detection pretreatment all-in-one, supernatant extraction element's schematic structure.
Fig. 3 is the utility model provides an in pesticide residue detection pretreatment all-in-one, the structure schematic diagram of nitrogen blowing appearance.
Fig. 4 is the utility model provides an in pesticide residue detection pretreatment all-in-one, solution transfer device's schematic diagram.
Fig. 5 is the utility model provides an in pesticide residue detection pretreatment all-in-one, the schematic diagram of the needle of getting on the appearance.
Detailed Description
The utility model provides a pesticide residue detects preceding processing all-in-one, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the embodiment is lifted to follow with reference to the drawing the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1-5, the utility model provides a pesticide residue detection and pretreatment integrated machine, which comprises a supernatant fluid extraction device a, a nitrogen blowing instrument B and a solution transfer device C; the supernatant extracting device A comprises a vibration table 1 and a sample tube placing table 2 arranged on the vibration table; the sample tube placing table is provided with a plurality of concave holes 2.1 for inserting sample tubes (not shown in the figure); the nitrogen blowing instrument B comprises a nitrogen blowing table 3, a nitrogen blowing frame 4 arranged above the nitrogen blowing table, and a first lifting mechanism 5 for driving the nitrogen blowing frame to lift; the nitrogen blowing table 3 is provided with a plurality of jacks 3.1 for inserting test tubes (not shown in the figure), and the nitrogen blowing frame 4 is provided with a nitrogen blowing pipe 4.1 corresponding to each jack; the solution transferring device C is used for transferring the supernatant in the sample tube to the corresponding test tube.
When the device is used, a sample tube filled with a sample solution is placed on the sample tube placing table 2, the solution is uniformly vibrated by the vibrating table 1, then a supernatant is obtained by standing and precipitating, the supernatant is automatically transferred to a test tube inserted in the nitrogen blowing table 3 by the solution transferring device C, and finally the nitrogen is blown and concentrated by the nitrogen blowing tube 4.1; in the process, manual operation is needed only when the sample tube is placed, and other processes do not need manual participation, so that the time of contacting the human body with the toxic and harmful reagent is greatly shortened, and errors caused by manual operation can be reduced.
It should be noted that the nitrogen blowing instrument B in the present application is different from the existing nitrogen blowing instruments on the market only in that: the nitrogen blowing frame 4 of the nitrogen blowing instrument B is driven by the first lifting mechanism 5 to automatically lift, while the nitrogen blowing frame of the existing nitrogen blowing instrument is manually adjusted on the sliding rod and locked by a locking screw. Therefore, in the concentration process, the height of the nitrogen blowing frame 4 can be adjusted in real time according to the height of the liquid level in the test tube, so that the lower end of the nitrogen blowing tube 4.1 and the liquid level are always kept at a proper distance, the concentration time can be greatly shortened, and the efficiency is improved. The position of the jack 3.1 can be provided with a sensor (such as a photoelectric sensor) for detecting the height of the liquid level, and the sensor detects the height of the liquid level in real time so as to adjust the height of the nitrogen blowing frame 4 by the first lifting mechanism 5.
The first lifting mechanism 5 may be, but is not limited to, a screw-driven lifting mechanism, a cylinder-driven lifting mechanism, or a hydraulic cylinder-driven lifting mechanism. If the lifting mechanism is driven by an air cylinder or a hydraulic cylinder, the nitrogen blowing frame 4 is connected with a piston rod of the air cylinder (or the hydraulic cylinder). If the lifting mechanism is a screw rod transmission lifting mechanism, the first lifting mechanism 5 comprises a first screw rod 5.1, a first screw rod nut 5.2 and a first motor (in the nitrogen blowing table 3) which are vertically arranged and drive the first screw rod 5.1 to rotate; the first spindle nut 5.2 is fixedly connected with the nitrogen blowing frame 4, as shown in fig. 3. A plurality of vertical guide posts 5.3 can be arranged on the nitrogen blowing platform 3, and the nitrogen blowing frame 4 is connected with the guide posts 5.3 in a sliding manner so as to ensure that the movement direction of the nitrogen blowing frame 4 is accurate.
In this embodiment, the concave holes 2.1 of the sample tube placing table 2 and the insertion holes 3.1 of the nitrogen blowing table 3 are arranged in a one-to-one correspondence manner (that is, the number and arrangement form of the concave holes 2.1 and the insertion holes 3.1 are consistent, for example, as shown in fig. 1, the concave holes 2.1 are arranged in an array, and the insertion holes 3.1 are also arranged in the same array); the solution transfer device C comprises a sample sucking needle frame 6 which can reciprocate between the sample tube placing platform 2 and the nitrogen blowing platform 3, and a sample sucking needle 6.1 is arranged on the sample sucking needle frame corresponding to each concave hole, as shown in figure 4. Use at every turn, can place a plurality of sample tubes in the platform 2 is placed to the article pipe, when obtaining the supernatant, inhale the transfer that all supernatants can be accomplished to sample needle frame 6 once removing, and work efficiency is high.
Further, as shown in fig. 4, the solution transferring device C further comprises a base 7, a slide seat 8 slidably disposed on the base, and a needle rack driving mechanism 9 for driving the slide seat to move between the sample tube placing table 2 and the nitrogen blowing table 3; the sample sucking needle frame 6 is fixedly connected with the sliding seat 8.
The driving mechanism 9 comprises a screw rod transmission pair 9.1, a second motor 9.2 for driving a screw rod in the screw rod transmission pair 9.1 to move to rotate, and at least two guide rails 9.3; the sliding seat 8 is connected with the guide rail 9.3 in a sliding way; the guide rails 9.3 are preferably T-shaped guide rails to prevent the carriage 8 from derailing.
The rack 6 and the slide carriage 8 can be connected and fixed by a connecting rack 10, as shown in FIG. 4.
Of course, the manipulator can be used to move the rack 6, but the cost is high.
In this embodiment, as shown in fig. 5, the pesticide residue detection and pretreatment integrated machine further comprises a re-dissolving solution bottle 11 filled with a re-dissolving solution; the sample sucking needle 6.1 comprises a needle holder 6.1a and a needle head 6.1b which can stretch out and draw back in the needle holder, and the needle holder 6.1a is connected with the re-solution bottle 11 through a connecting pipe. After transferring the supernatant to the test tube, the reconstituted solution can be withdrawn from the reconstituted solution bottle 11 and injected into the test tube.
Further, the pesticide residue detection and pretreatment integrated machine further comprises a cleaning solution bottle 12 filled with cleaning solution, a buffer solution bottle 13 filled with buffer solution, and a waste liquid tray 14 used for storing waste liquid; the needle holder 6.1a is connected with a cleaning solution bottle 12 and a buffer solution bottle 13 through connecting pipes, and a waste liquid tray 14 is arranged below the sample suction needle frame 6. After each pretreatment, the sample suction needle 6.1 can be subjected to buffering treatment and cleaning treatment by using a buffer solution and a cleaning solution, and the generated waste liquid can be discharged into the waste liquid tray 14 through the needle head 6.1 b. Before standing and precipitating, the sample suction needle 6.1 can be used for repeatedly pumping and injecting the solution to accelerate the uniform mixing process at the sample tube, and then the sample suction needle 6.1 is subjected to buffering treatment and cleaning treatment.
In a preferred embodiment, referring to fig. 2, the supernatant extracting device a further comprises a cover plate 15 arranged above the sample tube placing table 2 in a liftable manner, and a second lifting mechanism 16 for driving the cover plate to lift; the cover plate is used for covering the upper end opening of the sample tube. The sample tube is connected with the cover plate cover, so that the solution can be prevented from splashing in the oscillation process.
A groove (not shown in the figure) can be further formed in the bottom of the cover plate 15 corresponding to each concave hole 2.1, and the upper end of the sample tube extends into the groove so as to improve the sealing performance. To further improve the sealing, a gasket layer may be provided in the groove.
The second lift mechanism 16 may be, but is not limited to, a screw-driven lift mechanism, a cylinder-driven lift mechanism, or a hydraulic cylinder-driven lift mechanism. Taking fig. 2 as an example, the second lifting mechanism 16 includes at least two lead screws 16.1 and corresponding lead screw nuts 16.2, and a third motor 16.3 for driving all the lead screws 16.1 to rotate synchronously; the spindle nut 16.2 is fixedly connected to the cover 15.
Further, referring to fig. 2, the supernatant extracting apparatus a further includes a traveling mechanism 17 for moving the sample tube placing table 2 out of the range covered by the cover plate 15 (the range covered by the projection of the cover plate 15 on the upper surface of the vibration table 1). Before the transfer of the supernatant, the sample tube placing table 2 is moved out of the coverage of the cover plate 15, so that the second lifting mechanism 16 is prevented from blocking the solution transfer device C.
The traveling mechanism 17 comprises a lead screw transmission pair 17.1, a fourth motor 17.2 for driving a lead screw of the lead screw transmission pair 17.1 to rotate, and at least two slide rails 17.3; the sample tube placing table 2 is connected with a slide rail 17.3 in a sliding manner; the slide rails 17.3 are preferably T-shaped guide rails to prevent the sample tube placement table 2 from derailing.
Specifically, as shown in fig. 2, the vibration table 1 includes an upper plate 1.1, a middle plate 1.2 and a bottom plate 1.3 which are arranged in parallel; the sample tube placing table 2, the second lifting mechanism 16 and the travelling mechanism 17 are all arranged on the upper plate 1.1; the middle plate is fixedly connected with the upper plate through a connecting column 1.4, and a plurality of vibrating motors 1.5 are arranged on the middle plate; a plurality of elastic buffer parts 1.6 are connected between the middle plate and the bottom plate. The upper plate 1.1 and the middle plate 1.2 can be driven to vibrate by the rotation of the vibrating motor to shake the solution; the elastomeric damper 1.6 may be, but is not limited to, a shock absorbing spring or an air spring.
Preferably, at least two mutually perpendicular vibration motors 1.5 are arranged on the middle plate 1.2, so that the sample tube placement prevention table 2 has three mutually perpendicular vibration components, and the solution can be mixed more uniformly.
It is understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions shall fall within the scope of the present invention.
Claims (10)
1. A pesticide residue detection and pretreatment integrated machine is characterized by comprising a supernatant extraction device, a nitrogen blowing instrument and a solution transfer device; the supernatant extracting device comprises a vibration table and a sample tube placing table arranged on the vibration table; the sample tube placing table is provided with a plurality of concave holes for inserting sample tubes; the nitrogen blowing instrument comprises a nitrogen blowing table, a nitrogen blowing frame arranged above the nitrogen blowing table, and a first lifting mechanism for driving the nitrogen blowing frame to lift; the nitrogen blowing platform is provided with a plurality of jacks for inserting test tubes, and the nitrogen blowing frame is provided with a nitrogen blowing pipe corresponding to each jack; the solution transferring device is used for transferring the supernatant in the sample tube to the corresponding test tube.
2. The pesticide residue detection and pretreatment integrated machine according to claim 1, wherein concave holes of the sample tube placing table and jacks on the nitrogen blowing table are arranged in a one-to-one correspondence manner; the solution transfer device comprises a sample suction needle frame which can move back and forth between a sample tube placing table and a nitrogen blowing table, and a sample suction needle is arranged at the position corresponding to each concave hole on the sample suction needle frame.
3. The integrated machine for pre-treatment of pesticide residue detection according to claim 2, wherein the solution transferring device further comprises a base, a slide seat arranged on the base in a sliding manner, and a needle frame driving mechanism for driving the slide seat to move between the sample tube placing table and the nitrogen blowing table; the sample suction needle frame is fixedly connected with the sliding seat.
4. The pesticide residue detection and pretreatment integrated machine according to claim 3, further comprising a re-solution bottle filled with a re-solution; the sample sucking needle comprises a needle holder and a needle head which can stretch out and draw back in the needle holder, and the needle holder is connected with the reconstituted solution bottle through a connecting pipe.
5. The pesticide residue detection and pretreatment integrated machine according to claim 4, further comprising a cleaning liquid bottle containing cleaning liquid, a buffer liquid bottle containing buffer liquid, and a waste liquid tray for storing waste liquid; the needle holder is connected with a cleaning liquid bottle and a buffer liquid bottle through a connecting pipe, and the waste liquid tray is arranged below the sample sucking needle frame.
6. The integrated machine for pre-treatment of pesticide residue detection according to claim 1, wherein the supernatant extracting device further comprises a cover plate arranged above the sample tube placing table in a liftable manner, and a second lifting mechanism for driving the cover plate to lift; the cover plate is used for covering the upper end opening of the sample tube.
7. The pesticide residue detection and pretreatment all-in-one machine as claimed in claim 6, wherein a groove is formed in the bottom of the cover plate corresponding to each concave hole, and the upper end of the sample tube extends into the groove.
8. The pesticide residue detection pretreatment integrated machine of claim 6, wherein the supernatant extraction device further comprises a traveling mechanism for moving the sample tube placing table out of the covering range of the cover plate.
9. The pesticide residue detection and pretreatment all-in-one machine as claimed in claim 8, wherein the vibrating table comprises an upper plate, a middle plate and a bottom plate which are arranged in parallel; the sample tube placing table, the second lifting mechanism and the travelling mechanism are all arranged on the upper plate; the middle plate is fixedly connected with the upper plate through a connecting column, and a plurality of vibration motors are arranged on the middle plate; a plurality of elastic buffer parts are connected between the middle plate and the bottom plate.
10. The pesticide residue detection and pretreatment all-in-one machine as claimed in claim 9, wherein at least two vibration motors perpendicular to each other are arranged on the middle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920825811.3U CN210037394U (en) | 2019-06-03 | 2019-06-03 | Pesticide residue detection pretreatment all-in-one machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920825811.3U CN210037394U (en) | 2019-06-03 | 2019-06-03 | Pesticide residue detection pretreatment all-in-one machine |
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| CN210037394U true CN210037394U (en) | 2020-02-07 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111889000A (en) * | 2020-08-12 | 2020-11-06 | 山东省农业科学院农业质量标准与检测技术研究所 | Liquid sample processing apparatus for microbiological detection |
| CN112255076A (en) * | 2020-10-24 | 2021-01-22 | 上海汇像信息技术有限公司 | Nitrogen blowing device and control method thereof |
| CN112684195A (en) * | 2021-01-19 | 2021-04-20 | 上海汇像信息技术有限公司 | Pesticide residue detection pretreatment system |
| CN112763734A (en) * | 2021-01-19 | 2021-05-07 | 上海汇像信息技术有限公司 | Pretreatment method for pesticide residue detection |
| CN113063908A (en) * | 2021-03-17 | 2021-07-02 | 中电建生态环境集团有限公司 | Water quality detection sample analysis system in regulation and storage tank |
-
2019
- 2019-06-03 CN CN201920825811.3U patent/CN210037394U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111889000A (en) * | 2020-08-12 | 2020-11-06 | 山东省农业科学院农业质量标准与检测技术研究所 | Liquid sample processing apparatus for microbiological detection |
| CN111889000B (en) * | 2020-08-12 | 2022-05-17 | 山东省农业科学院农业质量标准与检测技术研究所 | Liquid sample processing apparatus for microbiological detection |
| CN112255076A (en) * | 2020-10-24 | 2021-01-22 | 上海汇像信息技术有限公司 | Nitrogen blowing device and control method thereof |
| CN112684195A (en) * | 2021-01-19 | 2021-04-20 | 上海汇像信息技术有限公司 | Pesticide residue detection pretreatment system |
| CN112763734A (en) * | 2021-01-19 | 2021-05-07 | 上海汇像信息技术有限公司 | Pretreatment method for pesticide residue detection |
| CN113063908A (en) * | 2021-03-17 | 2021-07-02 | 中电建生态环境集团有限公司 | Water quality detection sample analysis system in regulation and storage tank |
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