Intelligent sample processing and detection device

Abstract

The application belongs to the field of mechanical devices, and provides an intelligent sample processing and detecting device, which comprises a weighing device for weighing the weight of a sample cup after a sample is added; a clamping and transferring device for grabbing, discarding and transferring the sample cup; a first liquid adding device for adding a buffer solution into the sample cup; an oscillation and conveying device for oscillating and transferring the sample cup; a pipetting device for extracting liquid in the sample cup after oscillation and injecting the liquid into a cuvette; a cleaning device for cleaning a needle; a second liquid adding device for adding a reagent into the cuvette; a stirring device for stirring the reagent; and a detecting device for detecting a sample solution. The intelligent sample processing and detecting device provided by the application realizes linkage of data and operations between steps, automatically completes the steps of sample sampling processing and detection, is simple to use, avoids manual operation errors, saves labor cost, improves work efficiency, and realizes mechanical and electrical integration, thereby facilitating user control, use and maintenance of the instrument.

Description

TECHNICAL FIELD

[0001] The present application relates to a mechanical device, in particular to an intelligent sample processing and detection device. BACKGROUND

[0002] In recent years, with the improvement of people's living standards, people pay more and more attention to healthy diet, and the market control of circulating fruit and vegetable food is also more and more strict, and the detection industry in the market is also more and more perfect. But for sample detection, it is still through manual processing, so that the labor cost of enterprises is getting higher and higher. The existing equipment cannot replace manual work, and still needs manual work to complete a series of steps such as weighing sample, adding sample, oscillation, extracting sample, putting sample into detection instrument and so on. In addition, manual operation error is inevitable in sample pretreatment and detection process, which directly affects the on-machine result. SUMMARY

[0003] The purpose of the present application is to overcome the defects of the prior art and provide an intelligent sample processing and detection device to solve the problems of high labor cost and manual operation error.

[0004] In order to solve the above technical problems, the present application provides the following technical scheme:

[0005] An intelligent sample processing and detection device, comprising a weighing device for weighing the weight of a sample cup after adding a sample; a clamping and transferring device for grabbing, discarding and transferring the sample cup; a first liquid adding device for adding buffer solution into the sample cup; an oscillation and conveying device for oscillating and transferring the sample cup; a pipetting device for extracting the liquid in the sample cup after oscillation and injecting it into a cuvette; a first cleaning device for cleaning the needle of the pipetting device; a second liquid adding device for adding reagent into the cuvette; a stirring device for mixing the reagent; a second cleaning device for cleaning the needle of the stirring device; and a detection device for detecting the sample liquid.

[0006] Further, a workbench is included, the oscillation and conveying device includes a plurality of fixed columns, the lower ends of the fixed columns are fixedly connected with the workbench, the upper ends of the fixed columns are jointly connected with a fixed platform, the lower end surface of the fixed platform is provided with a first driving motor, the fixed platform is provided with a first coupling, the lower end of the first coupling is connected with the motor shaft of the first driving motor, the upper end of the first coupling is connected with a first rotating rod, the upper end of the first rotating rod is connected with a carrier disc, and the edge of the carrier disc is provided with a plurality of placing holes.

[0007] Further, the weighing device comprises a plurality of support columns, the lower ends of the support columns are fixedly connected with the workbench, the upper ends of the support columns are jointly connected with a support platform, the upper end face of the support platform is provided with a fixing seat, the upper end of the fixing seat is connected with a load cell, and the upper end of the load cell is connected with a scale pan.

[0008] Further, the clamping and transferring device comprises two oppositely arranged first vertical fixed plates, the lower ends of the two first vertical fixed plates are fixedly connected with the workbench, the opposite inner side faces of the two first vertical fixed plates are provided with first vertical sliding rails, a first supporting plate is slidingly connected between the two first vertical sliding rails, the first supporting plate is threadedly connected with a first screw rod, the upper end face of the workbench is provided below the first supporting plate with a second driving motor, the motor shaft of the second driving motor is connected with the first screw rod through a second coupling, the upper end face of the first supporting plate is rotatably connected with a first driven wheel, the upper end of the first driven wheel is fixedly connected with a second rotary rod, the upper end of the second rotary rod is perpendicularly connected with a first sliding arm, and the front end of the first sliding arm is connected with a clamping jaw.

[0009] Further, the upper ends of the two first vertical fixed plates are jointly connected with a first guide plate, the first guide plate is provided with a first guide hole, the second rotary rod penetrates through the first guide hole, and the second rotary rod is slidingly connected with the first guide hole; the second rotary rod is sleeved with a first positioning disc, the side of the first positioning disc is provided with a first optical coupler, and the lower end face of the first supporting plate is provided with a second optical coupler.

[0010] Further, the first liquid adding device comprises a base, the lower end of the base is fixedly connected with the workbench, the upper end of the base is connected with a support, the upper end of the support is perpendicularly connected with a second sliding arm, the front end of the second sliding arm is connected with a liquid adding needle, the liquid adding needle is connected with a first peristaltic pump through a first pipeline, the first peristaltic pump is connected with a fourth driving motor and a buffer solution containing vessel; the support is a hollow support, the upper end and the lower end of the hollow support are provided with pipeline holes, and the middle segment of the first pipeline is arranged in the hollow support.

[0011] Further, the pipette device comprises two second vertical fixed plates oppositely arranged, lower ends of the two second vertical fixed plates are fixedly connected with the workbench, opposite inner sides of the two second vertical fixed plates are provided with second vertical sliding rails, a second supporting plate is slidably connected between the two second vertical sliding rails, the second supporting plate is threadedly connected with a second screw, a fifth driving motor is arranged on an upper end surface of the workbench below the second supporting plate, a motor shaft of the fifth driving motor is connected with the second screw through a third coupling; a second driven wheel is rotatably connected to an upper end surface of the second supporting plate, a third rotary rod is fixedly connected to an upper end of the second driven wheel, a second sliding arm is vertically connected to an upper end of the third rotary rod, and a sampling needle is connected to a front end of the second sliding arm; a sixth driving motor is fixedly connected to a lower end surface of the second supporting plate, a motor shaft of the sixth driving motor penetrates through the second supporting plate and is fixedly connected with a second driving wheel, and the second driving wheel is connected with the second driven wheel through a second synchronous belt; the sampling needle is connected with a second peristaltic pump through a second pipeline, and the second peristaltic pump is connected with a seventh driving motor and a clean water container.

[0012] Further, upper ends of the two second vertical fixed plates are commonly connected with a second guide plate, the second guide plate is provided with a second guide hole, the third rotary rod penetrates through the second guide hole, and the third rotary rod is slidably connected with the second guide hole; a second positioning disc is sleeved on an outer side of the third rotary rod, a third optocoupler is arranged beside the second positioning disc, and a fourth optocoupler is arranged on a lower end surface of the second supporting plate.

[0013] Further, the first cleaning device comprises a supporting seat, a lower end of the supporting seat is fixedly connected with the workbench, an upper end of the supporting seat is connected with a needle washing groove, a liquid inlet groove is arranged in the center of the interior of the needle washing groove, the liquid inlet groove is connected with a liquid inlet, the liquid inlet is connected with a third peristaltic pump through a third pipeline, the third peristaltic pump is connected with an eighth driving motor and a cleaning liquid container, a liquid outlet groove is arranged in the periphery of the liquid inlet groove in the interior of the needle washing groove, the liquid outlet groove is connected with a liquid outlet, and the liquid outlet is connected with a waste liquid container through a fourth pipeline.

[0014] Further, the detection device is fixed on the upper end surface of the workbench, and colorimetric cup placing openings are uniformly distributed on the upper end surface edge of the detection device, and colorimetric cups are placed in the colorimetric cup placing openings; the second liquid adding device comprises a stand column, the lower end of the stand column is fixedly connected with the workbench, a connecting arm is arranged on the upper end of the stand column, a plurality of reagent injection needles are arranged on the front end of the connecting arm, the reagent injection needles are arranged at intervals and located directly above adjacent colorimetric cups, each reagent injection needle corresponds to one colorimetric cup, and each reagent injection needle is connected with a corresponding detection reagent containing device through an injection pipeline and an injection pump; the stirring device comprises a rotating arm, and one stirring needle is arranged on the lower end surface of each end of the rotating arm.

[0015] The intelligent sample processing and detection device realizes linkage of data and operations between steps, automatically completes sample sampling processing and detection steps, is simple to use, avoids manual operation errors, saves labor cost, improves work efficiency, and facilitates user control, use and maintenance of the instrument. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, illustrate the application, and are used to explain the application, and do not constitute a limitation on the application. In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of the application;

[0018] Figure 2 is a schematic diagram of the structure of the oscillation conveying device in the application;

[0019] Figure 3 is a schematic diagram of the structure of the weighing device in the application;

[0020] Figure 4 is a schematic diagram of the structure of the first liquid adding device in the application;

[0021] Figure 5 is a schematic diagram of the structure of the pipetting device in the application;

[0022] Figure 6 is a schematic diagram of the structure of the pipetting device in the application;

[0023] Figure 7 is a schematic diagram of the structure of the detection device in the application;

[0024] Figure 8 is a schematic diagram of the structure of the cleaning device in the application. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] like Figures 1-8 As shown, an intelligent sample processing and detection device includes a weighing device 1 for weighing a sample cup after adding a sample; a first liquid addition device 2 for adding buffer solution to the sample cup; a shaking and transferring device 3 for shaking and transferring the sample cup; a clamping and transferring device 4 for grasping, discarding, and transferring the sample cup; a pipette device 5 for extracting liquid from the shaken sample cup and injecting it into a cuvette; a detection device 6 for detecting the sample liquid; a first cleaning device 7 for cleaning the needle of the pipette device; a second liquid addition device for adding reagents to the cuvette; a stirring device 65 for mixing the reagents; and a second cleaning device 66 for cleaning the needle of the stirring device.

[0027] The device also includes a worktable 8, and the oscillating conveying device 3 includes several fixed columns 31. The lower end of the fixed columns 31 is fixedly connected to the worktable 8, and the upper end of the fixed columns 31 is connected to a fixed platform 32. A first drive motor 33 is provided on the lower end face of the fixed platform 32, and a first coupling is provided on the fixed platform 32. The lower end of the first coupling is connected to the motor shaft of the first drive motor 33, and a first rotating rod 34 is connected to the upper end of the first coupling. A loading tray 35 is connected to the upper end of the first rotating rod 34, and several placement holes are provided on the edge of the loading tray 35.

[0028] The weighing device 1 includes several support columns 11. The lower end of the support columns 11 is fixedly connected to the workbench 8. The upper end of the support columns 11 is connected to a support platform 12. A fixed seat 13 is provided on the upper surface of the support platform 12. A weighing sensor 14 is connected to the upper end of the fixed seat 13. A weighing pan 15 is connected to the upper end of the weighing sensor 14.

[0029] The first liquid addition device 2 includes a base 21, the lower end of which is fixedly connected to the workbench 8. A bracket 22 is connected to the upper end of the base 21. A second sliding arm 23 is vertically connected to the upper end of the bracket 22. A liquid addition needle 24 is connected to the front end of the second sliding arm 23. The liquid addition needle 24 is connected to a first peristaltic pump through a first pipeline. The first peristaltic pump is connected to a fourth drive motor and a buffer solution container.

[0030] The pipetting device 5 comprises two second vertical fixed plates 51 arranged oppositely, the lower ends of the two second vertical fixed plates 51 are fixedly connected with the workbench 8, the opposite inner sides of the two second vertical fixed plates 51 are provided with second vertical sliding rails, a second supporting plate 52 is slidably connected between the two second vertical sliding rails, the second supporting plate 52 is threadedly connected with a second screw, the upper end surface of the workbench is provided below the second supporting plate with a fifth driving motor 53, the motor shaft of the fifth driving motor 53 is connected with the second screw through a third coupling; the upper end surface of the second supporting plate 52 is rotatably connected with a second driven wheel 54, the upper end of the second driven wheel 54 is fixedly connected with a third rotating rod 55, the upper end of the third rotating rod 55 is perpendicularly connected with a second sliding arm 56, the front end of the second sliding arm 56 is connected with a sampling needle 57; the lower end surface of the second supporting plate 52 is fixedly connected with a sixth driving motor 58, the upper end of the motor shaft of the sixth driving motor 58 penetrates through the second supporting plate 52 and is fixedly connected with a second driving wheel 59, the second driving wheel 59 is connected with the second driven wheel 54 through a second synchronous belt; the sampling needle 57 is connected with a second peristaltic pump through a second pipeline, the second peristaltic pump is connected with a seventh driving motor and a clean water containing container.

[0031] The clamping and transferring device 4 comprises two first vertical fixed plates arranged oppositely, the lower ends of the two first vertical fixed plates are fixedly connected with the workbench, the opposite inner sides of the two first vertical fixed plates are provided with first vertical sliding rails, a first supporting plate is slidably connected between the two first vertical sliding rails, the first supporting plate is threadedly connected with a first screw, the upper end surface of the workbench is provided below the first supporting plate with a second driving motor, the motor shaft of the second driving motor is connected with the first screw through a second coupling; the upper end surface of the first supporting plate is rotatably connected with a first driven wheel, the upper end of the first driven wheel is fixedly connected with a second rotating rod, the upper end of the second rotating rod is perpendicularly connected with a first sliding arm, the front end of the first sliding arm is connected with a clamping jaw; the lower end surface of the first supporting plate is fixedly connected with a third driving motor, the upper end of the motor shaft of the third driving motor penetrates through the first supporting plate and is fixedly connected with a first driving wheel, the first driving wheel is connected with the first driven wheel through a first synchronous belt. The structure of the clamping and transferring device is completely same as that of the pipetting device, the only difference is that the sampling needle is replaced by the clamping jaw.

[0032] The first cleaning device 7 comprises a supporting seat, the lower end of the supporting seat is fixedly connected with the workbench 8, the upper end of the supporting seat is connected with a needle washing groove, a liquid inlet groove 71 is arranged in the inner center of the needle washing groove, the liquid inlet groove 71 is connected with a liquid inlet 72, the liquid inlet 72 is connected with a third peristaltic pump through a third pipeline, the third peristaltic pump is connected with an eighth driving motor and a cleaning liquid containing container; a ring-shaped liquid outlet groove 73 is arranged in the inner center of the needle washing groove outside the liquid inlet groove, the liquid outlet groove 73 is connected with a liquid outlet, the liquid outlet is connected with a waste liquid containing container through a fourth pipeline.

[0033] The detection device 6 is fixed on the upper end face of the workbench 8, the upper end face edges of the detection device 61 are uniformly distributed with cuvette placing ports, and cuvettes are placed in the cuvette placing ports; the second liquid adding device includes a stand column 62, the lower end of the stand column 62 is fixedly connected with the workbench 8, the upper end of the stand column 62 is provided with a connecting arm 63, the front end of the connecting arm 63 is provided with a plurality of reagent injection needles 64, the reagent injection needles 64 are arranged at intervals and located directly above adjacent cuvettes, each reagent injection needle 64 corresponds to a cuvette, and each reagent injection needle 64 is connected with a corresponding detection reagent containing device through an injection pipeline and an injection pump.

[0034] The structure of the stirring device 65 is completely same as that of the pipetting device, except that the second sliding arm is replaced by a rotating arm, the middle part of the rotating arm is connected with a rotating rod below it, and the lower end faces of the two ends of the rotating arm are respectively provided with a stirring needle, the stirring needle can drive rotation, and the liquid in the cuvette after adding the detection reagent is stirred, the second cleaning device 66 and the first cleaning device 7 are completely same in structure, and are used for cleaning the stirring needle. The stirring device 65 is arranged between the detection device 6 and the second cleaning device 66, one stirring needle works while the other stirring needle is cleaned, and the stirring efficiency is doubled.

[0035] A plurality of detection reagents (including enzymes, color developing agents and substrates in this embodiment) are added to each cuvette, and the traditional detection device has only one reagent injection needle, so that the operation of adding reagents and cleaning needles needs to be repeated to add all detection reagents to one cuvette, and the detection efficiency is very low. According to the structure of the present scheme, each needle head corresponds to add one detection reagent, and there is no need to clean the needle head, and the addition of detection reagents to the cuvette is sequentially performed in the rotating process of the corresponding structure of the detection device, so that the detection efficiency is improved.

[0036] The working principle includes the following steps:

[0037] 1, the sample is placed in the sample cup, and then the sample cup is placed on the scale pan to obtain the weight of the sample and the sample cup. The processor records the weight of the sample cup. Then the clamping and transferring device clamps and transfers the sample cup to the lower side of the liquid adding needle. The first liquid adding device adds buffer solution matching the weight of the sample cup to the sample cup according to the weight information recorded by the processor. In this embodiment, the buffer solution is used to wash out pesticide residues on the surface of vegetables and fruits. After the buffer solution is added to the sample cup, the clamping and transferring device places the sample cup in the placement hole of the sample holder. The processor records the position of the sample cup. The sample holder rotates back and forth to shake and mix the liquid in the sample cup. The cuvette is placed in the cuvette placement hole. After shaking, the sample cup reaches the specified position. The third rotating rod rotates to make the sampling needle reach the upper side of the sample cup at the specified position. The second supporting plate descends to make the sampling needle insert into the sample cup for sampling. After sampling, the second supporting plate rises. The third rotating rod rotates to make the sampling needle reach the upper side of the cuvette at the specified position. The second supporting plate descends to make the sampling needle insert into the cuvette and inject the sampled liquid into the cuvette. Then the second supporting plate rises. The third rotating rod rotates to make the sampling needle reach the upper side of the needle washing groove. The second supporting plate descends to make the sampling needle insert into the needle washing groove. The third peristaltic pump works to clean the inside of the sampling needle with clean water. The third peristaltic pump works to clean the outside of the sampling needle with cleaning liquid. After the liquid level of the liquid inlet groove rises, the waste liquid enters the liquid outlet groove and is finally discharged into the waste liquid container. Then the supporting plate rises. The third rotating rod resets. At the same time, the detection device completes the addition, mixing and detection of the detection reagent.

[0038] 2, in the above process, after sampling is completed, the sample holder sends the sample cup to the specified position, and the clamping and transferring device takes away the sampled sample cup and releases it into the garbage can outside the workbench;

[0039] 3, the above is the whole process of pretreatment and detection of one sample. During the process, when the detection personnel place the sample cup with the sample in the scale pan, the other devices will repeat the process of steps 1 and 2 (if step 2 is being performed, the operation will be repeated after step 2 is completed).

[0040] In summary, the present scheme can realize uninterrupted and continuous detection. The detection personnel only need to place the sample cup with the sample on the scale pan.

[0041] It should be noted that the device is equipped with a power supply device for power supply and a processor for processing data and transmitting signals. The power supply device and the processor are respectively connected with the weighing device, the clamping and transferring device, the first and second liquid adding devices, the shaking and conveying device, the detection device, the pipetting device, the stirring device and the first and second cleaning devices to realize the operation of each component according to the above principle. The control process is all prior art.

[0042] The upper ends of the two first vertical fixing plates are connected with a first guide plate, a first guide hole is arranged on the first guide plate, the second rotating rod passes through the first guide hole, and the second rotating rod is in sliding connection with the first guide hole, so that the lifting and rotation of the second rotating rod are more stable.

[0043] The outer side of the second rotating rod is sleeved with a first positioning disc, a first optocoupler is arranged on the side of the first positioning disc, and a second optocoupler is arranged on the lower end surface of the first supporting plate. The first optocoupler is used for sensing the displacement of the first positioning disc, and the second optocoupler is used for sensing the displacement of the first supporting plate, so that the movement of the two is more accurate.

[0044] The upper end and the lower end of the hollow support are provided with pipeline holes, the middle segment of the first pipeline is arranged in the hollow support, the first pipeline is protected, and the occupied space is saved.

[0045] The upper ends of the two second vertical fixing plates 51 are connected with a second guide plate 510, a second guide hole is arranged on the second guide plate 510, and the third rotating rod 55 passes through the second guide hole, so that the lifting and rotation of the third rotating rod are more stable.

[0046] The outer side of the third rotating rod 55 is sleeved with a second positioning disc, a third optocoupler is arranged on the side of the second positioning disc, and a fourth optocoupler is arranged on the lower end surface of the second supporting plate 52. The third optocoupler is used for sensing the displacement of the second positioning disc, and the fourth optocoupler is used for sensing the displacement of the second supporting plate, so that the movement of the two is more accurate.

[0047] The intelligent sample processing and detection device realizes linkage of data and operation between steps, automatically completes sample sampling processing and detection steps, is simple to use, avoids manual operation errors, saves labor cost, improves work efficiency, and realizes mechanical and electrical integration, so that users can control, use and maintain the instrument conveniently.

[0048] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, and for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An intelligent sample processing and detection device, characterized in that: include Weighing device used to weigh the sample cup after the sample has been added; Clamping and transfer device for gripping, discarding and transferring sample cups; A first dispensing device for adding buffer solution into a sample cup; An oscillating conveyor for oscillating and transferring sample cups; A pipette used to extract liquid from a shaken sample cup and inject it into a cuvette; A first cleaning device for cleaning the needles of a pipetting apparatus; A second dispensing device for adding reagents to cuvettes; Stirring device for mixing reagents; A second cleaning device for cleaning the needles of the stirring device; Detection device for testing sample solutions; The device includes a worktable and an oscillating transmission device comprising several fixed columns. The lower ends of the fixed columns are fixedly connected to the worktable, and the upper ends of the fixed columns are connected to a fixed platform. A first drive motor is provided on the lower end face of the fixed platform, and a first coupling is provided on the fixed platform. The lower end of the first coupling is connected to the motor shaft of the first drive motor, and a first rotating rod is connected to the upper end of the first coupling. A loading tray is connected to the upper end of the first rotating rod, and several placement holes are provided on the edge of the loading tray. The weighing device includes several support columns, the lower end of which is fixedly connected to the workbench, and the upper end of which is connected to a support platform. A fixed seat is provided on the upper surface of the support platform, and a weighing sensor is connected to the upper end of the fixed seat. A weighing pan is connected to the upper end of the weighing sensor. The first liquid addition device includes a base, the lower end of which is fixedly connected to the workbench, a bracket connected to the upper end of the base, a second sliding arm vertically connected to the upper end of the bracket, a liquid addition needle connected to the front end of the second sliding arm, and a first peristaltic pump connected to the liquid addition needle through a first pipeline. The first peristaltic pump is connected to a fourth drive motor and a buffer solution container. The second liquid addition device includes a column, the lower end of which is fixedly connected to the workbench. The upper end of the column is provided with a connecting arm, and the front end of the connecting arm is provided with a plurality of reagent injection needles. The reagent injection needles are arranged at intervals and located directly above the adjacent cuvettes. Each reagent injection needle corresponds to one cuvette. Each reagent injection needle is connected to a corresponding reagent holding device for detection through an injection pipeline and an injection pump.

2. The intelligent sample processing and detection device according to claim 1, characterized in that: The clamping and transferring device includes two first vertical fixing plates arranged opposite each other. The lower ends of the two first vertical fixing plates are fixedly connected to the worktable. The opposite inner surfaces of the two first vertical fixing plates are provided with first vertical slide rails. A first support plate is slidably connected between the two first vertical slide rails. A first screw is threadedly connected to the first support plate. A second drive motor is provided on the upper surface of the worktable below the first support plate. The motor shaft of the second drive motor is connected to the first screw through a second coupling. A first driven wheel is rotatably connected to the upper surface of the first pallet, a second rotating rod is fixedly connected to the upper end of the first driven wheel, a first sliding arm is vertically connected to the upper end of the second rotating rod, and a gripper is connected to the front end of the first sliding arm; A third drive motor is fixedly connected to the lower end face of the first pallet. The upper end of the motor shaft of the third drive motor passes through the first pallet and is fixedly connected to a first drive wheel. The first drive wheel is connected to the first driven wheel through a first synchronous belt.

3. The intelligent sample processing and detection device according to claim 2, characterized in that: The upper ends of the two first vertical fixing plates are connected to a first guide plate. The first guide plate is provided with a first guide hole. The second rotating rod passes through the first guide hole and is slidably connected to the first guide hole. The outer side of the second rotating rod is fitted with a first positioning plate, a first optocoupler is provided on the side of the first positioning plate, and a second optocoupler is provided on the lower end surface of the first tray.

4. The intelligent sample processing and detection device according to claim 1, characterized in that: The support is a hollow support, and pipe holes are provided at both the upper and lower ends of the hollow support. The middle section of the first pipe is located inside the hollow support.

5. The intelligent sample processing and detection device according to claim 1, characterized in that: The pipetting device includes two opposing second vertical fixing plates, the lower ends of which are fixedly connected to the worktable. The opposing inner surfaces of the two second vertical fixing plates are provided with second vertical slide rails, and a second support plate is slidably connected between the two second vertical slide rails. A second screw is threadedly connected to the second support plate. A fifth drive motor is provided on the upper surface of the worktable below the second support plate. The motor shaft of the fifth drive motor is connected to the second screw via a third coupling. A second driven wheel is rotatably connected to the upper surface of the second pallet, a third rotating rod is fixedly connected to the upper end of the second driven wheel, a second sliding arm is vertically connected to the upper end of the third rotating rod, and a sampling needle is connected to the front end of the second sliding arm; A sixth drive motor is fixedly connected to the lower end face of the second support plate. The upper end of the motor shaft of the sixth drive motor passes through the second support plate and is fixedly connected to a second drive wheel. The second drive wheel is connected to the second driven wheel through a second synchronous belt. The sampling needle is connected to a second peristaltic pump via a second conduit, and the second peristaltic pump is connected to a seventh drive motor and a water container.

6. The intelligent sample processing and detection device according to claim 5, characterized in that: The upper ends of the two second vertical fixing plates are connected to a second guide plate. The second guide plate is provided with a second guide hole. The third rotating rod passes through the second guide hole and is slidably connected to the second guide hole. A second positioning plate is fitted on the outer side of the third rotating rod, a third optocoupler is provided on the side of the second positioning plate, and a fourth optocoupler is provided on the lower end face of the second support plate.

7. The intelligent sample processing and detection device according to claim 1, characterized in that: The first cleaning device includes a support base, the lower end of which is fixedly connected to the workbench, and the upper end of which is connected to a needle washing tank. A liquid inlet is provided in the center of the needle washing tank, and the liquid inlet is connected to a liquid inlet. The liquid inlet is connected to a third peristaltic pump through a third pipeline. The third peristaltic pump is connected to an eighth drive motor and a cleaning fluid container. The inside of the needle washing tank is provided with an annular outlet tank around the inlet tank. The outlet tank is connected to an outlet, and the outlet is connected to a waste liquid container through a fourth pipeline.

8. The intelligent sample processing and detection device according to claim 1, characterized in that: The detection device is fixed to the upper surface of the workbench. The upper surface of the detection device is evenly distributed with cuvette placement openings, and cuvettes are placed in the cuvette placement openings. The stirring device includes a rotating arm, and a stirring needle is respectively provided on the lower end face of both ends of the rotating arm.

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