A maintenance-free reagent filling system

Abstract

The present invention relates to the field of reagent filling technology, and in particular to a maintenance-free automatic reagent filling system. Its technical solution includes: a reagent automatic filling maintenance rack, the reagent automatic filling maintenance rack includes a reagent delivery area for arranging reagents, the bottom of the reagent delivery area is provided with a reagent conduction area for replenishing reagents for preliminary conduction, and the bottom of the reagent conduction area is provided with an in-situ detection area for collecting the reagents transmitted above and for detection. The present invention uses an internally installed sensor to detect air tightness and the presence or absence of liquid through an in-situ detection chamber, or when the minimum amount of remaining reagent is triggered, the in-situ analyzer will trigger the automatic filling of the reagent, and the number of fillings can be set, which greatly extends the operation and maintenance cycle of the in-situ detection equipment and improves the risk resistance of the operation and maintenance detection equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of reagent filling, and in particular to an automatic reagent filling maintenance-free system. Background Art

[0002] Monitoring equipment for seawater, freshwater, and wastewater uses reagents to test water quality, which are gradually consumed during the testing process. Therefore, efficient and accurate reagent filling is crucial. Traditional reagent filling methods rely primarily on manual operation, which presents the following problems: 1. Manual filling is slow, making it difficult to meet the needs of large-scale production; 2. Manual operation can easily lead to inaccurate dosage, affecting experimental results and product quality.

[0003] The automatic reagent filling and maintenance-free system is simple to operate, has high efficiency in filling reagents, and has greatly improved filling accuracy. However, although the existing automatic reagent filling and maintenance-free system has obvious advantages, it still has the following technical bottlenecks: 1. High-viscosity, easily crystallized or corrosive reagents may cause metering pump blockage or seal failure; 2. Staff cannot understand the real-time status of the system in real time, and the system stability and reliability are poor.

[0004] In the patent document with the publication number CN219237866U, a reagent quantitative addition device is disclosed, which places solid reagents in a test kit. Under the action of gravity, the reagents will fill the sampling chambers of different volumes below. When it is necessary to add reagents quantitatively, just select the required sampling chamber, pull it outward, and then rotate the front plate on the rear plate to complete the pouring of the solid reagents in the sampling chamber. After the material is taken, the front plate is rotated and reset, and the solid reagents in the test kit will be automatically filled into the sampling chamber again, thereby realizing a simple device principle, capable of realizing automatic quantitative filling of reagents, very convenient to use, high measurement accuracy, and strong practicality.

[0005] When the above devices are in use, if the staff are not around the equipment, they cannot understand the specific operating status of the system in real time, and cannot remotely intervene and maintain possible problems in the system, resulting in poor system stability and reliability.

[0006] Therefore, the present application proposes a maintenance-free system for automatic reagent filling. Summary of the Invention

[0007] The purpose of the present invention is to address the problem in the background technology that the staff cannot understand the specific operating status of the system in real time and cannot remotely intervene and maintain possible problems in the system, and to propose an automatic reagent filling and maintenance-free system.

[0008] The technical solution of the present invention is: a maintenance-free automatic reagent filling system, comprising an automatic reagent filling maintenance rack, the automatic reagent filling maintenance rack comprising a reagent delivery area for arranging reagents, a reagent conducting area for replenishing reagents for preliminary conduction provided at the bottom of the reagent delivery area, and an in-situ detection area for collecting the reagents transmitted from above and for detection provided at the bottom of the reagent conducting area;

[0009] An intelligent feeding system is installed inside the automatic reagent filling and maintenance rack, a bidirectional pneumatic clamping assembly is installed on the outside of the intelligent feeding system, and a comprehensive conveying assembly is installed on one side of the bidirectional pneumatic clamping assembly.

[0010] Optionally, the intelligent feeding system includes a positioning rotating rod set at the top of the reagent delivery area by a first motor, a reagent bottle mounting rack with multiple mounting holes is fixedly installed on the bottom of the positioning rotating rod, reagent bottles are plugged into the interior of the reagent bottle mounting rack through the mounting holes, a delivery hole compatible with the reagent bottle is opened inside the reagent delivery area, and a barcode recognition component is fixedly installed on the inner wall of the reagent delivery area.

[0011] Optionally, the bidirectional pneumatic clamp assembly includes a fixed support frame fixedly installed inside the reagent delivery area, a limit press plate fixedly installed on the inner wall of the fixed support frame, a built-in threaded frame fixedly installed inside the reagent delivery area, a bidirectional threaded rod with threads on both sides in opposite states rotatably installed inside the built-in threaded frame, the bidirectional threaded rod is threadedly connected to a first arc guide block on the side facing the reagent bottle, and the first arc guide block is slidably installed inside the built-in threaded frame through a slide groove.

[0012] Optionally, an auxiliary clamping block is fixedly installed on one side of the first arc-shaped guide block, a rotation limit block is rotatably installed inside the auxiliary clamping block, the rotation limit block passes through a side of the auxiliary clamping block and is fixedly installed with a first electric telescopic rod, a pneumatic clamping claw is fixedly installed on one side of the first electric telescopic rod, and two guide fixing blocks are fixedly installed on the outer side of the rotation limit block, and the two guide fixing blocks are arranged in a vertical state.

[0013] Optionally, the side of the bidirectional threaded rod away from the reagent bottle is threadedly connected to a second arc-shaped guide block, the second arc-shaped guide block is slidably installed inside the built-in threaded rack through a slide groove, a fixed hollow tube is fixedly installed on one side of the second arc-shaped guide block, and a delivery tube is fixedly installed inside the fixed hollow tube.

[0014] Optionally, two-way guide tubes are fixedly installed on both sides of the second arc-shaped guide block, a second electric telescopic rod is fixedly installed inside the two-way guide tubes, two double-hinged rods are hinged on one side of the second electric telescopic rod, and a Luer lock joint is fixedly installed inside the delivery tube.

[0015] Optionally, a guide bracket is fixedly installed on one side of the bidirectional guide tube, a first built-in magnetic suction tube is slidably installed on the outer side of the guide bracket, one of the double-hinged rods is hinged on the outer side of the first built-in magnetic suction tube, an auxiliary transmission tube is fixedly installed on the side of the guide bracket away from the reagent delivery area, an external magnetic sliding cavity block is slidably installed inside the guide bracket, and the external magnetic sliding cavity block and the first built-in magnetic suction tube are arranged in a magnetic state.

[0016] Optionally, a second built-in magnetic tube is hinged on one side of the other double-hinged rod, and the second built-in magnetic tube is slidably installed on the outside of the Luer lock joint. An auxiliary magnetic block is fixedly installed inside the second built-in magnetic tube, and a slide frame is slidably installed inside the Luer lock joint. A filter screen is slidably installed inside the slide frame, and a spring is fixedly installed between the filter screen and the slide frame.

[0017] Optionally, a positioning rack is fixedly installed on the inner wall of the delivery hole in the reagent delivery area, a gear-type control valve is provided on one side of the Luer lock joint, the gear-type control valve is arranged in a meshing state with the positioning rack, and a guide slide block is fixedly installed on the other side of the Luer lock joint, and the guide slide block is slidably installed inside the delivery hole in the reagent delivery area through a guide rail.

[0018] Optionally, the in-situ detection area includes a control unit, an analysis unit, a peristaltic pump, and a background control end. The control unit is connected to the peristaltic pump, and the peristaltic pump is connected to multiple reagent bags through a first pipe. The multiple reagent bags are connected to the analysis unit through a second pipe. The control unit is connected to the background control end, and the background control end is an operation terminal controller connected to the control unit by wire or a remote network platform connected to the control unit through a communication module.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. The barcode recognition component interacts with the control unit via a communication interface, automatically matching the reagent type and filling parameters between the reagent bottle mounting rack and the positioning rod. This allows for high-precision metering and filling, preventing unskilled workers from placing the wrong reagent bottle on the positioning rod and causing losses. The control unit then uses a servo motor to drive the peristaltic pump to ensure accurate dosing.

[0021] 2. The second built-in magnetic suction tube slides along the conveying pipe through a double hinged rod. The filter pushes the impurities below and pushes part of the reagent to the position of the peristaltic pump. The peristaltic pump can process these impurities through the backwash function, thereby improving the cleaning efficiency. At the same time, the filter can also shake off the impurities on the surface when the impurities are moved up and down by the spring, avoiding blockage and improving the circulation efficiency of the reagent.

[0022] 3. The in-situ detection chamber uses internally installed sensors to detect air tightness and the presence or absence of liquid, or when the minimum amount of remaining reagent is triggered, the in-situ analyzer will trigger the automatic filling of the reagent, and the number of fillings can be set, which greatly extends the operation and maintenance cycle of the in-situ detection equipment and improves the risk resistance of the operation and maintenance detection equipment;

[0023] 4. The first electric telescopic rod drives the pneumatic clamping claw to move toward the reagent bottle, fully clamping the reagent bottle, making the reagent filling of the reagent bottle more stable. At the same time, under the clamping of the first electric telescopic rod, the bidirectional threaded rod can be adapted to the delivery hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The structural diagram of the automatic reagent filling maintenance-free system is given;

[0025] Figure 2 It is a structural diagram of the intelligent feeding system of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the bidirectional pneumatic gripper assembly of the present invention;

[0027] Figure 4 for Figure 3 Enlarged view of the middle A area;

[0028] Figure 5 It is a schematic structural diagram of the reagent delivery area of ​​the present invention;

[0029] Figure 6 for Figure 5 Enlarged view of the middle B area;

[0030] Figure 7 A schematic structural diagram of the second arc-shaped guide block of the present invention is given;

[0031] Figure 8 It is a schematic structural diagram of the delivery pipe of the present invention;

[0032] Figure 9 It is a structural schematic diagram of the second built-in magnetic suction tube of the present invention;

[0033] Figure 10 for Figure 9 Enlarged view of the middle C area;

[0034] Figure 11 for Figure 9 Enlarged view of the middle D area;

[0035] Figure 12 for Figure 9 Enlarged view of the middle E region;

[0036] Figure 13 It is a structural schematic diagram of the in-situ detection area;

[0037] Figure 14 It is a structural diagram of the guide fixed block.

[0038] Figure numerals: 1. Automatic reagent filling maintenance rack; 101. Reagent delivery area; 102. Reagent conduction area; 103. In-situ detection area; 1031. Control unit; 1032. Analysis unit; 1033. Peristaltic pump; 1034. Backstage control terminal; 1035. Reagent bag; 2. Intelligent feeding system; 201. Reagent bottle mounting rack; 202. Positioning rotating rod; 203. Reagent bottle; 3. Bidirectional pneumatic clamping jaw assembly; 301. Pneumatic clamping jaw; 302. Limiting plate; 303. First electric telescopic rod; 304. Fixed support frame; 305. Auxiliary clamping block; 306. Bidirectional threaded rod; 307. Built-in threaded rack; 3 08. First arc-shaped guide block; 309. Transfer limit block; 310. Guide fixed block; 4. Integrated conveying assembly; 401. Conveying pipe; 402. Second arc-shaped guide block; 403. Fixed hollow tube; 404. Bidirectional guide tube; 405. First built-in magnetic tube; 406. Double hinged rod; 407. Guide bracket; 408. Auxiliary transmission tube; 409. Luer lock connector; 410. Second built-in magnetic tube; 411. Gear control valve; 412. Adjustment rack; 413. Guide slide block; 414. Auxiliary magnetic block; 415. Filter; 416. Slide rack; 417. Spring; 418. External magnetic slide block. DETAILED DESCRIPTION

[0039] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0040] like Figure 1 - Figure 2 As shown, a reagent automatic filling maintenance-free system includes a reagent automatic filling maintenance rack 1, the reagent automatic filling maintenance rack 1 includes a reagent delivery area 101 for arranging reagents, a reagent conducting area 102 for replenishing reagents for preliminary conduction is provided at the bottom of the reagent delivery area 101, and an in-situ detection area 103 for collecting the reagents transmitted above and for detection is provided at the bottom of the reagent conducting area 102;

[0041] like Figure 13As shown, the in-situ detection area 103 includes a control unit 1031, an analysis unit 1032, a peristaltic pump 1033, a background control terminal 1034 and a plurality of reagent bags 1035;

[0042] The control unit 1031 is electrically connected to the peristaltic pump 1033 and is used to control the start and stop of the peristaltic pump and adjust the flow rate;

[0043] The peristaltic pump 1033 is connected to a plurality of reagent bags 1035 through first pipes;

[0044] The plurality of reagent bags 1035 are connected to the analysis unit 1032 via a second conduit;

[0045] The control unit 1031 establishes a communication connection with the background control terminal 1034, which is an operation terminal controller connected to the control unit by wire or a remote network platform connected to the control unit via a communication module;

[0046] An intelligent feeding system 2 is installed inside the automatic reagent filling maintenance rack 1, a two-way pneumatic clamping assembly 3 is installed on the outside of the intelligent feeding system 2, and an integrated conveying assembly 4 is installed on one side of the two-way pneumatic clamping assembly 3. The intelligent feeding system 2 includes a positioning rotating rod 202 set on the top of the reagent conveying area 101 by a first motor, and a reagent bottle mounting rack 201 with multiple mounting holes is fixedly installed on the bottom of the positioning rotating rod 202. Reagent bottles 203 are plugged into the interior of the reagent bottle mounting rack 201 through the mounting holes. A conveying hole adapted to the reagent bottle 203 is opened inside the reagent conveying area 101, and a barcode recognition assembly is fixedly installed on the inner wall of the reagent conveying area 101. The intelligent feeding system 2 uses the reagent bottle mounting rack 201 and the positioning rotating rod 202 to automatically arrange the reagent bottles 203 to ensure that the reagent bottles 20 3. Precise positioning. A barcode recognition component is installed on the inner wall of the reagent delivery area 101. The specific operation process is that when the intelligent feeding system 2 rotates the reagent bottle 203 through the positioning rotating rod 202, the barcode recognition component captures the barcode on the reagent bottle through the optical unit and converts it into barcode information. The decoding unit inside the barcode recognition component parses the barcode information. The barcode recognition component uses the communication interface RS485 / RS232 to interact with the control unit 1031, so that the reagent bottle mounting rack 201 and the positioning rotating rod 202 automatically match the reagent type and filling parameters, and achieve high-precision metering and filling to prevent unskilled staff from placing the wrong reagent bottle 203 on the positioning rotating rod 202, causing losses. Then the control unit 1031 uses the servo motor to drive the peristaltic pump 1033 to ensure accurate dosage.

[0047] It is explained here that in the process of the reagent bottle mounting rack 201 and the positioning rotating rod 202 transporting the reagent bottle 203 to the filling station, that is, the position of the conveying hole, the bottle mouth position is confirmed by the barcode recognition component, and the error is controlled within ±0.5mm. The encoder inside the barcode recognition component is used to feedback the conveyor belt position to the control unit 1031, and then the control unit 1031 adjusts the servo motor stop position to fix the corresponding position of the reagent bottle 203.

[0048] like Figure 3 - Figure 6As shown, the bidirectional pneumatic clamping jaw assembly 3 includes a fixed support frame 304 fixedly installed inside the reagent delivery area 101, a limit pressing plate 302 is fixedly installed on the inner wall of the fixed support frame 304, a built-in threaded frame 307 is fixedly installed inside the reagent delivery area 101, a bidirectional threaded rod 306 with threads on both sides in opposite states is rotatably installed inside the built-in threaded frame 307, the bidirectional threaded rod 306 is threadedly connected to one side of the reagent bottle 203 with a first arc-shaped guide block 308, the first arc-shaped guide block 308 is slidably installed in the interior of the built-in threaded frame 307 through a slide groove, and the bidirectional threaded rod 306 is connected along the built-in threaded frame 307 by a connected motor. The first electric telescopic rod 303 is fixedly installed on one side of the first arc guide block 308, and the pneumatic clamping claw 301 is fixedly installed on one side of the first electric telescopic rod 303. 01 fixes the reagent bottle to prevent displacement during filling, and is compatible with bottles of different diameters, with bottle sizes ranging from 30 to 50 mm. The pneumatic clamping claw 301 has a built-in force sensor to prevent overpressure on the bottle. Two guide fixing blocks 310 are fixedly installed on the outer side of the transfer limit block 309. The two guide fixing blocks 310 are set at a vertical 90-degree angle. In detail, the angle between the two guide fixing blocks 310 is 90 degrees. When the reagent bottle 203 is transported to the specified position through the reagent bottle mounting frame 201 and the positioning rotating rod 202, the bidirectional threaded rod 306 rotates along the built-in threaded frame 307, and the first arc-shaped guide block 308 rotates along the built-in threaded frame 307. When the bottle 303 is in the air, the first push rod 303 is pushed upwards and the second push rod 303 is pushed downwards, so that the first push rod 303 is pushed upwards and the second push rod 303 is pushed downwards. When the bottle 303 is in the air, the first push rod 303 is pushed upwards and the second push rod 303 is pushed downwards. When the bottle 303 is in the air, the first push rod 303 is pushed upwards and the second push rod 303 is pushed downwards, so that the first push rod 303 is pushed downwards and the second push rod 303 is pushed downwards, so that the first push rod 303 is pushed downwards and the second push rod 303 is pushed downwards and the second push rod 303 is pushed downwards, so that the first push rod 303 is pushed downwards and the second push rod 303 is pushed downwards, so that the

[0049] Similarly, when the bidirectional threaded rod 306 moves upward, the guide fixing block 310 attached to the bottom of the limit plate 302 is subjected to the reaction force to drive the rotation limit block 309 to bend, causing the rotation limit block 309 to drive the auxiliary clamping block 305 to return to its original position, thereby facilitating the disassembly of the reagent bottle 203.

[0050] like Figure 7 - Figure 12As shown, the side of the bidirectional threaded rod 306 away from the reagent bottle 203 is threadedly connected to the second arc-shaped guide block 402, and the second arc-shaped guide block 402 is slidably installed in the interior of the built-in threaded rack 307 through a slide groove. A fixed hollow tube 403 is fixedly installed on one side of the second arc-shaped guide block 402, and a delivery tube 401 is fixedly installed inside the fixed hollow tube 403. Since the threads on both sides of the bidirectional threaded rod 306 are set in opposite states, when the two pneumatic clamping claws 301 clamp the reagent bottle 203, the second arc-shaped guide block 402 drives the delivery tube 401 to move toward the direction of the reagent bottle 203, implementing the reagent connection step, and bidirectional guide tubes 404 are fixedly installed on both sides of the second arc-shaped guide block 402, and the interior of the bidirectional guide tube 404 is fixedly installed. A second electric telescopic rod is installed, and two double-hinged rods 406 are hinged on one side of the second electric telescopic rod. A Luer lock joint 409 is fixedly installed inside the delivery tube 401. An elastic sealing ring is used at the connection between the bottle mouth of the reagent bottle 203 and the Luer lock joint 409, and pressure adaptive adjustment is used to ensure long-term sealing. A guide bracket 407 is fixedly installed on one side of the two-way guide tube 404, and a first built-in magnetic suction tube 405 is slidably installed on the outside of the guide bracket 407. A double-hinged rod 406 is hinged on the outside of the first built-in magnetic suction tube 405. An auxiliary delivery tube 408 is fixedly installed on the side of the guide bracket 407 away from the reagent delivery area 101. There is an auxiliary connecting pipe between the auxiliary delivery tube 408 and the peristaltic pump 1033. The guide bracket 40 7 is slidably installed with an external magnetic sliding cavity block 418, and the external magnetic sliding cavity block 418 is arranged in a magnetic state with the first built-in magnetic suction tube 405. A second built-in magnetic suction tube 410 is hinged on one side of the other double-hinged rod 406, and the second built-in magnetic suction tube 410 is slidably installed on the outside of the Luer lock joint 409. An auxiliary magnetic block 414 is fixedly installed inside the second built-in magnetic suction tube 410, and a slide frame 416 is slidably installed inside the Luer lock joint 409. A filter screen 415 is slidably installed inside the slide frame 416, and a spring 417 is fixedly installed between the filter screen 415 and the slide frame 416. High viscosity and easy crystallization may cause the conveying pipe 401 to be blocked. In this case, the staff can drive the two The double-hinged rod 406 moves toward the direction of the two-way guide tube 404. During this process, the double-hinged rod 406 uses magnetic attraction to drive the external magnetic sliding cavity block 418 through the first built-in magnetic suction tube 405 from the closed state blocking the auxiliary transmission tube 408 and the Luer lock joint 409 to a flowing state, thereby diverting the accumulated reagent flowing in from the reagent bottle 203 from the top to the peristaltic pump 1033 through the auxiliary transmission tube 408 to avoid the reagent from not being able to circulate normally. At the same time, the second built-in magnetic suction tube 410 slides along the delivery tube 401 through the double-hinged rod 406, and the filter screen 415 pushes the impurities below and pushes part of the reagent to the position of the peristaltic pump 1033. The peristaltic pump 1033 can process these impurities through the backwash function.This improves cleaning efficiency. At the same time, as the filter 415 moves up and down due to impurities being moved by spring 417, impurities on the surface can also be shaken off, avoiding blockage and improving the circulation efficiency of the reagent. After solving the above problems, the second electric telescopic rod returns to its original position. The application of artificial intelligence AI in real-time error correction is not yet mature, and the staff relies on the 4G module to connect to the network platform to understand the real-time situation and deal with it quickly.

[0051] like Figure 10 As shown, a positioning rack 412 is fixedly installed on the inner wall of the delivery hole of the reagent delivery area 101, and a gear-type control valve 411 is provided on one side of the Luer lock joint 409. The gear-type control valve 411 and the positioning rack 412 are arranged in a meshing state. A guide slide block 413 is fixedly installed on the other side of the Luer lock joint 409. The guide slide block 413 is slidably installed inside the delivery hole of the reagent delivery area 101 through a guide rail. When the Luer lock joint 409 is stably inserted into the interior of the reagent bottle 203 through the guide rail in the guide slide block 413, the gear-type control valve 411 and the positioning rack 412 move relative to each other, and the gear-type control valve 411 rotates to connect the Luer lock joint 409 with the reagent bottle 203 for positioning, thereby ensuring stable output of the reagent.

[0052] In this embodiment, Figure 13 As shown, the analysis unit 1032 is a microfluidic water quality detection chip, including a microfluidic reaction cell, an electrochemical sensor array and a spectral detection module, which is used to consume the detection reagent in the reagent bag and output the detection data.

[0053] In this embodiment, the control unit 1031 includes:

[0054] Microcontroller module, using STM32 series ARM processor;

[0055] Analog-to-digital conversion module, used to convert the sensor analog signal into a digital signal;

[0056] Storage module, including EEPROM and FLASH memory;

[0057] Communication interface, integrated RS485 bus and Wi-Fi module;

[0058] The power management module adopts DC-DC conversion circuit.

[0059] Control unit 1031 utilizes a modular design, centered around an STM32F407ZGT6 microcontroller with 1MB of Flash and 192KB of RAM. The analog-to-digital conversion module utilizes the ADS1256 high-precision ADC chip, supporting 8-channel differential input. The storage module includes an AT24C512 EEPROM and a W25Q128JV FLASH memory, storing calibration parameters and test logs, respectively. Communication interfaces support both the RS485 bus and the ESP8266 Wi-Fi module, enabling communication with the backend via MODBUS RTU or MQTT protocols. The power management module utilizes an LM2596S DC-DC converter, supporting a wide input voltage range of 9–36V.

[0060] The analysis unit 1032 includes:

[0061] Microfluidic chip, with multi-channel microfluidic pipelines set inside;

[0062] Electrochemical detection module, including pH electrode, dissolved oxygen electrode and heavy metal ion sensor;

[0063] Spectral detection module, including LED light source, cuvette and photodetector;

[0064] Temperature control module, using Peltier effect device;

[0065] Data acquisition module with integrated 24-bit AD converter.

[0066] The analysis unit 1032 utilizes a multilayer PDMS microfluidic chip with a six-channel microfluidic channel, each 200μm wide and 100μm deep. The electrochemical detection module integrates a screen-printed electrode array, including an Ag / AgCl reference electrode, a platinum working electrode, and a pH-sensitive glass electrode. The spectral detection module utilizes a 450nm LED light source and a TCS34725 color sensor, combined with a micro-cuvette for turbidity detection. The temperature control module utilizes a DS18B20 temperature sensor and a TEC1-12706 semiconductor cooler to achieve ±0.1°C temperature control. The data acquisition module utilizes the ADS1232 low-power ADC, supporting simultaneous sampling and PGA gain adjustment.

[0067] The peristaltic pump 1033 is a multi-channel peristaltic pump, each channel of which is controlled by an independent stepper motor. The reagent bag 1035 is a replaceable design, and the bag body is equipped with an RFID tag and a pressure sensor.

[0068] The backend control terminal 1034 includes:

[0069] Local operation terminal equipped with a 7-inch touch screen and embedded Linux system;

[0070] The reagent bottle 203 is connected to the peristaltic pump 1033 via a Luer lock connector 409. Since there are multiple reagent bottles 203, the analysis unit 1032 consumes the reagent in the reagent bag during water quality analysis. When the reagent in the in-situ detection chamber is consumed, the in-situ detection chamber uses internally installed sensors to detect air tightness and the presence or absence of liquid, or when the minimum amount of remaining reagent is triggered, the in-situ analyzer will trigger automatic reagent refilling. The number of refills can be set, which greatly extends the operation and maintenance cycle of the in-situ detection equipment and improves the risk resistance of the operation and maintenance detection equipment.

[0071] The remote monitoring platform is built on cloud servers and supports data storage and early warning push functions.

[0072] It should be noted that the backend control terminal sends test task instructions, including test parameters and test cycles, to the control unit 1031 via the RS485 / WiFi communication module. The control unit 1031 drives the multi-channel peristaltic pump 1033, which independently controls the valves in each channel via a stepper motor. The peristaltic pump 1033 draws a specific volume of reagent from the corresponding reagent bag 1035. The reagent bag 1035 has an embedded RFID tag that automatically identifies the reagent type, and a pressure sensor monitors the remaining volume in real time.

[0073] The reagents are injected into the microfluidic chip of the analysis unit 1032 through the second pipeline: the multi-channel microfluidic pipeline realizes the precise ratio of reagents, and the temperature control module stabilizes the temperature of the reaction pool at 25±0.1℃ through the Peltier device.

[0074] The pH electrode monitors the solution acidity and alkalinity in real time, the dissolved oxygen electrode measures the DO concentration using polarography, and the heavy metal sensor detects Pb²+ / Cd²+ through differential pulse voltammetry; an LED light source (450nm / 525nm / 630nm) stimulates the color reaction, and a photodetector measures the absorbance change to calculate the turbidity / COD value.

[0075] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0076] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art may make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A reagent automatic filling maintenance-free system, comprising a reagent automatic filling maintenance rack (1), characterized in that: The reagent automatic filling maintenance rack (1) comprises a reagent delivery area (101) for arranging reagents, a reagent conduction area (102) for replenishing reagents for preliminary conduction is provided at the bottom of the reagent delivery area (101), and an in-situ detection area (103) for collecting the reagents transmitted above and for detection is provided at the bottom of the reagent conduction area (102); An intelligent feeding system (2) is installed inside the reagent automatic filling maintenance rack (1), a bidirectional pneumatic clamping assembly (3) is installed outside the intelligent feeding system (2), and a comprehensive conveying assembly (4) is installed on one side of the bidirectional pneumatic clamping assembly (3); The intelligent feeding system (2) includes a positioning rotating rod (202) arranged at the top of the reagent delivery area (101) by a first motor, a reagent bottle mounting rack (201) having a plurality of mounting holes is fixedly mounted on the bottom of the positioning rotating rod (202), a reagent bottle (203) is inserted into the interior of the reagent bottle mounting rack (201) through the mounting holes, a delivery hole adapted to the reagent bottle (203) is opened inside the reagent delivery area (101), and a barcode recognition component is fixedly mounted on the inner wall of the reagent delivery area (101).

2. A maintenance-free reagent automatic filling system according to claim 1, characterized in that: The bidirectional pneumatic clamp assembly (3) includes a fixed support frame (304) fixedly installed inside the reagent delivery area (101), a limit press plate (302) fixedly installed on the inner wall of the fixed support frame (304), a built-in threaded frame (307) fixedly installed inside the reagent delivery area (101), a bidirectional threaded rod (306) with two side threads set in opposite states is rotatably installed inside the built-in threaded frame (307), and a first arc-shaped guide block (308) is threadedly connected to the side of the bidirectional threaded rod (306) facing the reagent bottle (203), and the first arc-shaped guide block (308) is slidably installed inside the built-in threaded frame (307) through a slide groove.

3. A maintenance-free reagent automatic filling system according to claim 2, characterized in that: An auxiliary clamping block (305) is fixedly installed on one side of the first arc-shaped guide block (308), a rotation limit block (309) is rotatably installed inside the auxiliary clamping block (305), a first electric telescopic rod (303) is fixedly installed on one side of the rotation limit block (309) passing through the auxiliary clamping block (305), a pneumatic clamping claw (301) is fixedly installed on one side of the first electric telescopic rod (303), two guide fixed blocks (310) are fixedly installed on the outer side of the rotation limit block (309), and the two guide fixed blocks (310) are arranged in a vertical 90-degree state.

4. A maintenance-free reagent automatic filling system according to claim 3, characterized in that: The side of the bidirectional threaded rod (306) away from the reagent bottle (203) is threadedly connected to a second arc-shaped guide block (402), and the second arc-shaped guide block (402) is slidably installed inside the built-in threaded rack (307) through a slide groove. A fixed hollow tube (403) is fixedly installed on one side of the second arc-shaped guide block (402), and a delivery tube (401) is fixedly installed inside the fixed hollow tube (403).

5. A maintenance-free reagent automatic filling system according to claim 4, characterized in that: Two-way guide tubes (404) are fixedly installed on both sides of the second arc-shaped guide block (402), a second electric telescopic rod is fixedly installed inside the two-way guide tube (404), two double-hinged rods (406) are hinged on one side of the second electric telescopic rod, and a Luer lock joint (409) is fixedly installed inside the delivery tube (401).

6. A maintenance-free reagent automatic filling system according to claim 5, characterized in that: A guide bracket (407) is fixedly installed on one side of the bidirectional guide tube (404), a first built-in magnetic suction tube (405) is slidably installed on the outer side of the guide bracket (407), a double hinged rod (406) is hinged on the outer side of the first built-in magnetic suction tube (405), an auxiliary transmission tube (408) is fixedly installed on the side of the guide bracket (407) away from the reagent delivery area (101), an external magnetic sliding cavity block (418) is slidably installed inside the guide bracket (407), and the external magnetic sliding cavity block (418) and the first built-in magnetic suction tube (405) are arranged in a magnetic state.

7. The maintenance-free reagent automatic filling system according to claim 6, characterized in that: A second built-in magnetic suction tube (410) is hingedly connected to one side of the other double-hinged rod (406), and the second built-in magnetic suction tube (410) is slidably mounted on the outside of the Luer lock joint (409). An auxiliary magnetic block (414) is fixedly mounted inside the second built-in magnetic suction tube (410), and a slide frame (416) is slidably mounted inside the Luer lock joint (409). A filter screen (415) is slidably mounted inside the slide frame (416), and a spring (417) is fixedly mounted between the filter screen (415) and the slide frame (416).

8. The maintenance-free reagent automatic filling system according to claim 7, characterized in that: A positioning rack (412) is fixedly mounted on the inner wall of the delivery hole of the reagent delivery area (101), a gear-type control valve (411) is provided on one side of the Luer lock joint (409), and the gear-type control valve (411) and the positioning rack (412) are arranged in a meshing state, and a guide slide block (413) is fixedly mounted on the other side of the Luer lock joint (409), and the guide slide block (413) is slidably mounted inside the delivery hole of the reagent delivery area (101) through a guide rail.

9. The maintenance-free reagent automatic filling system according to claim 1, characterized in that: The in-situ detection area (103) includes a control unit (1031), an analysis unit (1032), a peristaltic pump (1033), and a background control terminal (1034). The control unit (1031) is connected to the peristaltic pump (1033). The peristaltic pump (1033) is connected to a plurality of reagent bags (1035) via a first pipe. The plurality of reagent bags (1035) are connected to the analysis unit (1032) via a second pipe. The control unit is connected to the background control terminal, which is an operation terminal controller connected to the control unit by wire or a remote network platform connected to the control unit via a communication module.

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