Full-automatic titration analyzer

Abstract

The utility model provides a full-automatic titration analyzer which comprises a C-shaped base body, an inclined touch operation screen is arranged at the top of the base body, a sample disc is arranged on the base body, the sample disc is connected with a rotating device in the base body, a supporting vertical rod is installed in the rotating device, and the supporting vertical rod is connected with the base body. The middle part of the supporting vertical rod is fixedly connected with a supporting cross rod, the free end of the supporting cross rod is fixedly connected with a detection device, and a titrating head and a reagent adding head which are opposite to sample holes in the sample disc are arranged below the touch operation screen. According to the detector (RGB color detection), the camera (video detection) and the dual-detection fusion algorithm detection system, the special design angle enables the detection process to be more efficient, and the dual-detection system enables the efficiency to be higher and the result to be more accurate.

Description

Technical Field

[0001] This utility model relates to a fully automatic titration analyzer, and pertains to the field of titration analysis technology. Background Technology

[0002] Iodine is an essential trace element for the human body, possessing multiple physiological functions. It is a crucial raw material for the synthesis of thyroid hormones, which play a vital role in human growth and development, metabolism, and the nervous system. Iodine deficiency leads to reduced thyroid hormone synthesis, affecting energy metabolism and causing symptoms such as weight gain and fatigue. Iodine deficiency can also affect the nervous system development of fetuses and infants, leading to serious consequences such as intellectual disability and growth retardation. Excessive iodine can also cause thyroid problems, such as hyperthyroidism or hypothyroidism. Therefore, detecting the iodine content in table salt is crucial for maintaining human health. Determining the iodine content in salt is significant for understanding the role of iodine in the human body, preventing and treating related diseases, and its application in medical diagnosis.

[0003] Water hardness refers to the total content of metal ions such as calcium and magnesium in water. Excessively hard water can cause many inconveniences in daily life. For example, hard water easily produces limescale after heating, which not only affects the lifespan of water heaters but also leaves difficult-to-clean stains on clothes and tableware. Furthermore, long-term consumption of excessively hard water may negatively impact health, such as increasing the burden on the kidneys and causing kidney stones.

[0004] In industrial production, excessively hard water can negatively impact equipment operation and product quality. For example, in industries like textiles and papermaking, hard water can cause equipment blockage and corrosion, affecting production efficiency; in the food and beverage industries, hard water can affect product taste and quality. Therefore, by testing the total hardness of water, timely measures can be taken, such as selecting water sources with lower hardness or employing appropriate water treatment processes to reduce water hardness. High-hardness water entering the environment can negatively affect rivers, lakes, and other bodies of water, leading to eutrophication, disrupting ecological balance, and impacting the survival and reproduction of aquatic organisms. Furthermore, calcium and magnesium ions in hard water react with anions in detergents, fertilizers, and other chemicals to form insoluble salts, reducing their effectiveness.

[0005] In conclusion, measuring the total hardness of water is of great significance for ensuring the quality of daily life, improving industrial production efficiency, protecting the environment, and safeguarding human health.

[0006] Currently, the determination of iodine content in table salt is carried out using the direct titration method, redox method, and spectrophotometric method specified in GB / T 13025.7-2012 General Test Methods for the Determination of Iodine in Salt Industry. Among these, direct titration and redox methods are considered the most reliable and accurate. The spectrophotometric method is a rapid detection method, but its accuracy has a relatively large deviation. Compared to the redox method, the direct titration method is simpler and more efficient, and is the preferred method for laboratory personnel. Currently, this method is mainly used manually. The amount of reagent added to the table salt needs to be precise, the result calculation is cumbersome and time-consuming, and the testing process requires a high level of skill and meticulousness from the laboratory personnel.

[0007] The total hardness of water was determined using the disodium ethylenediaminetetraacetate titration method, Part 10 of the "Standard Examination Methods for Drinking Water, Part IV: Sensory and Physical Indicators" (GB / T 5750.4-2023). The disodium ethylenediaminetetraacetate titration method has low requirements for instruments and experimental conditions, offering advantages such as low experimental cost. It is considered a reliable, accurate, and practical method, and is the preferred method for various third-party testing institutions and laboratories. Currently, this method is mainly performed manually, requiring the testing personnel to have a very high degree of color recognition during the testing process. A slight over-dosing can easily lead to excessive dosage and experimental failure. Utility Model Content

[0008] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a fully automated titration analyzer, the specific technical solution of which is as follows:

[0009] A fully automated titration analyzer includes a C-shaped base body with an inclined touch screen on top. A sample tray is mounted on the base body and connected to a rotating device inside the base body. A support vertical rod is installed inside the rotating device, and a support horizontal rod is fixedly connected to the middle of the support vertical rod. A detection device is fixedly connected to the free end of the support horizontal rod. A titration head and a reagent addition head are located below the touch screen, directly opposite the sample holes on the sample tray.

[0010] Preferably, the reagent adding head includes reagent adding channel one, reagent adding channel two, reagent adding channel three and reagent adding channel four, wherein reagent adding channel three and reagent adding channel four are located on both sides of the titration head and can be directly aligned with a sample hole on the sample tray.

[0011] Furthermore, the sample tray is annular in shape and has multiple sample holes circumferentially arranged. Each sample hole can be rotated to reach the corresponding positions of the titration head, reagent addition channel one, reagent addition channel two, reagent addition channel three, and reagent addition channel four. A partition is provided between the sample holes, and a limiting hole is provided at the position of the base body corresponding to each sample hole.

[0012] Preferably, the rotating device includes a rotating support module, on which a hollow rotating platform is rotatably connected. The bottom of the rotating support module is fixedly connected to the base plate of the base body. A rotating motor for driving the hollow rotating platform to rotate is provided on the base plate. The supporting vertical rod is inserted into the hollow rotating platform and extends to the rotating support module and the base plate for fixed connection. The hollow rotating platform is fixedly connected to the sample tray through a support frame.

[0013] Furthermore, U-shaped stirring and fixing brackets are installed on both sides of the rotary motor, a magnetic stirring head is provided on the top of the stirring and fixing brackets, and a stirring motor connected to the magnetic stirring head is provided on the inner side of the stirring and fixing brackets.

[0014] Furthermore, the detection device is positioned towards the limiting hole below the titration head, and the magnetic stirring head is located within the base body below the touch screen.

[0015] Preferably, the detection device includes a mounting plate fixedly connected to the end of the support crossbar. The end of the mounting plate is V-shaped, with a detector fixedly mounted on one side, supplementary lights on both sides of the detector, and a camera fixedly mounted on the other side.

[0016] Furthermore, the angle between the center line of the side on the mounting plate where the detector is mounted and the central axis of the supporting crossbar is 18°, the angle between the center line of the side on the mounting plate where the camera is mounted and the central axis of the supporting crossbar is 20°, and the angle between the supporting crossbar and the longitudinal central axis of the base body is 15°.

[0017] Preferably, the rear side inside the base body is provided with an industrial control computer, a control board, a titration injection pump connected to the titration head, and a reagent addition pump connected to reagent addition channel one, reagent addition channel two, reagent addition channel three and reagent addition channel four respectively.

[0018] Preferably, the base body has heat dissipation holes on both sides of the top, and a network cable port, a USB port, a power port and a power switch on one side of the bottom of the base body, and a reagent pipeline interface connected to the titration injection pump and the reagent addition pump on the other side.

[0019] This invention is operated via a touch screen. The rotating disc drives the sample tray to rotate. When the tray reaches the reagent addition position below the touch screen, reagents are added and stirred through reagent addition channels one and two. As the sample tray continues to rotate to the titration head position, reagents are added through reagent addition channels three and four. Simultaneously, the titration head drips in the test reagent. After stirring by the magnetic stirring head, the detection device detects the solution in the sample cup within the sample well. The same operation continues in another sample well downstream, achieving fully automated titration analysis and detection, eliminating manual operation and improving detection accuracy. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a fully automatic titration analyzer according to this utility model.

[0021] Figure 2 This is a front view of a fully automatic titration analyzer according to this utility model.

[0022] Figure 3 This is a side view of a fully automatic titration analyzer according to this utility model.

[0023] Figure 4 This is a rear internal structure diagram of a fully automatic titration analyzer according to this utility model.

[0024] Figure 5 This is a schematic diagram of the rotating device of this utility model installed on the base plate.

[0025] Figure 6 This is a top view of the rotating device of this utility model mounted on the base plate.

[0026] Figure 7 This is a schematic diagram of the structure of the detection device of this utility model.

[0027] In the diagram: 1. Base body; 2. Touch screen; 3. Sample tray; 4. Supporting vertical rod; 5. Supporting horizontal rod; 6. Detection device; 601. Mounting plate; 602. Detector; 603. Camera; 604. Supplemental light; 7. Sample port; 8. Titration head; 9. Reagent addition channel one; 10. Reagent addition channel two; 11. Reagent addition channel three; 12. Reagent addition channel four; 13. Industrial computer; 14. Control board; 15. Titration device. 16. Syringe pump; 17. Reagent dosing pump; 18. Heat dissipation hole; 19. Network cable port; 20. USB port; 21. Power port; 22. Power switch; 23. Reagent tubing interface; 24. Partition plate; 25. Limiting hole; 26. Rotary support module; 27. Hollow rotating platform; 28. Base plate; 29. ​​Rotary motor; 30. Stirring bracket; 31. Magnetic stirring head; 32. Stirring motor; 33. Sample cup; 34. Support frame. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1-7As shown, a fully automated titration analyzer includes a C-shaped base body 1. A tilted touchscreen 2 is mounted on the top of the base body 1. A sample tray 3 is mounted on the base body 1 and connected to a rotating device within the base body 1. A supporting vertical rod 4 is installed within the rotating device. A supporting horizontal rod 5 is fixedly connected to the middle of the supporting vertical rod 4. A detection device 6 is fixedly connected to the free end of the supporting horizontal rod 5. Below the touchscreen 2, a titration head 8 and a reagent adding head are positioned opposite a sample hole 7 on the sample tray 3. The reagent adding head includes a reagent adding channel 1 9, a reagent adding channel 2 10, a reagent adding channel 3 11, and a reagent adding channel 4 12. The reagent adding channels 3 11 and 4 12 are located on either side of the titration head 8 and are directly opposite a sample hole 7 on the sample tray 3.

[0030] The rear side of the base body 1 houses an industrial control computer 13, a control board 14, a titration injection pump 15 connected to the titration head 8, and a reagent addition pump 16 connected to reagent addition channels 1-9, 10, 11, and 12 respectively. The top two sides of the base body 1 have heat dissipation holes 17 for ventilation. One side of the bottom of the base body 1 has a network cable port 18, a USB port 19, a power port 20, and a power switch 21; the other side has a reagent tubing interface 22 connected to the titration injection pump 15 and the reagent addition pump 16. The industrial control computer 13 controls the automated operation of the fully automatic titration analyzer, and the control board 14 sends action commands to the reagent addition pump 16, the titration injection pump 15, and the rotating device.

[0031] The sample tray 3 is annular in shape and has multiple sample holes 7 circumferentially arranged. Each sample hole 7 can be rotated to reach the corresponding positions of the titration head 8, reagent addition channel 1 9, reagent addition channel 2 10, reagent addition channel 3 11, and reagent addition channel 4 12. A partition 23 is provided between the sample holes 7, and a limiting hole 24 is provided at the position of the base body 1 corresponding to each sample hole 7. After the sample cup 32 is placed into the sample hole 7, it can be placed within the corresponding limiting hole 24.

[0032] The rotating device includes a rotating support module 25, on which a hollow rotating platform 26 is rotatably connected. The bottom of the rotating support module 25 is fixedly connected to the base plate 27 of the base body 1. The base plate 7 is equipped with a rotating motor 28 for driving the hollow rotating platform 26 to rotate. Specifically, the rotating motor 28 can drive the hollow rotating platform 26 to rotate via gears. The supporting vertical rod 4 is inserted into the hollow rotating platform 26 and extends to the rotating support module 25, which is fixedly connected to the base plate 27. The hollow rotating platform 26 is fixedly connected to the sample tray 3 via a support frame 33, and the rotation of the hollow rotating platform 26 can synchronously drive the sample tray 3 to rotate.

[0033] The rotary motor 28 is equipped with U-shaped stirring and fixing brackets 29 on both sides. The top of the stirring and fixing brackets 29 is provided with a magnetic stirring head 30, and the inner side of the stirring and fixing brackets 29 is provided with a stirring motor 31 connected to the magnetic stirring head 30.

[0034] The detection device is positioned below the titration head 8, corresponding to the limiting hole 24. The magnetic stirring head 30 is located within the base body 1 below the touch screen 2. When the stirring motor 31 is turned on, the magnetic stirring head 30 begins to operate, thoroughly stirring the reagent sample in the sample cup 32 passing through this area. The titration head 8 injects reagent into the sample cup 32, and after stirring, the corresponding position of the detection device facilitates detection and analysis.

[0035] The detection device includes a mounting plate 601 fixedly connected to the end of the support crossbar 5. The end of the mounting plate 601 is V-shaped, with a detector 602 fixedly mounted on one side for detecting reagents in the sample cup 32. Supplemental lights 604 are provided on both sides of the detector 602 to illuminate the sample cup 32, facilitating accurate detection. A camera 603 is fixedly mounted on the other side to capture video images, which are then analyzed by a built-in program in the industrial control computer 13 within the base body 1. The dual-detection fusion algorithm system—detector 602 (RGB color detection) + camera 603 (video detection)—results in higher efficiency and more accurate results.

[0036] The angle between the center line of the side on which the detector 602 is mounted on the mounting plate 601 and the central axis of the supporting crossbar 5 is 18°; the angle between the center line of the side on which the camera 603 is mounted on the mounting plate 601 and the central axis of the supporting crossbar 5 is 20°; the angle between the supporting crossbar 5 and the longitudinal central axis of the base body 1 is 15°; the special design angles make the detection process more efficient.

[0037] The working principle of this utility model is as follows:

[0038] First, place the weighed samples sequentially into the sample holes 7 on the sample tray 3, and start the experiment using the touch screen 2. The sample tray 3 begins to rotate. Once the first sample hole is below reagent addition channel 9, the corresponding reagent addition pump 16 starts adding water, and simultaneously, the stirring motor 31 below starts stirring and mixing the sample. After the sample is mixed, the first sample hole rotates to below reagent addition channel 10, and the corresponding reagent addition pump 16 starts adding reagent; simultaneously, the second sample hole reaches below reagent addition channel 9, and the corresponding reagent addition pump 16 starts adding water and stirring. After this, rotate to the next position, and the first sample hole is below the titration head 8. The corresponding reagent addition pump 16 starts adding reagent from reagent addition channels 11 and 12, while the stirring motor 31 below stirs synchronously. The titration injection pump 15 also starts titrating, and the detector 602 and camera 603 start detection. When one detection is completed, the next sample rotates to the titration head 8 position and begins titration. Titration is performed sequentially according to the automated production line operation.

[0039] Once the sample titration is complete, the completed sample cup 32 can be manually removed, and a new sample can be placed in that position. The equipment can perform multiple sample circulation, greatly improving detection efficiency. This invention can detect iodine in edible salt (direct titration method) and total hardness in water (disodium ethylenediaminetetraacetate titration method), achieving multiple uses in one machine.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fully automated titration analyzer characterized in that, The base body in C type is provided with a touch operation screen arranged obliquely at the top, a sample disc is arranged on the base body, the sample disc is connected with a rotating device in the base body, a support vertical rod is installed in the rotating device, a support horizontal rod is fixedly connected to the middle part of the support vertical rod, a detection device is fixedly connected to the free end of the support horizontal rod, a titration head and a reagent adding head are arranged below the touch operation screen and opposite to the sample holes on the sample disc.

2. The fully automated titration analyzer of claim 1, wherein, The reagent adding head comprises a reagent adding channel one, a reagent adding channel two, a reagent adding channel three and a reagent adding channel four, the reagent adding channel three and the reagent adding channel four are arranged on both sides of the titration head and can be opposite to one sample hole on the sample disc.

3. A fully automated titration analyzer according to claim 2, characterized in that The sample disc is in a circular ring type and is provided with a plurality of sample holes in the circumferential direction, each sample hole can rotate to reach the corresponding positions of the titration head, the reagent adding channel one, the reagent adding channel two, the reagent adding channel three and the reagent adding channel four, and a partition plate is arranged between the sample holes, and a limiting hole is arranged in the position of the base body corresponding to each sample hole.

4. The fully automated titration analyzer of claim 1, wherein, The rotating device comprises a rotating support module, a hollow rotating platform is rotatably connected to the rotating support module, the bottom of the rotating support module is fixedly connected to the bottom plate of the base body, a rotating motor is arranged on the bottom plate to drive the hollow rotating platform to rotate, the support vertical rod is inserted into the hollow rotating platform and extends to the position where the rotating support module is fixedly connected to the bottom plate, and the hollow rotating platform is fixedly connected to the sample disc through a support frame.

5. A fully automated titration analyzer according to claim 4, characterized in that U-shaped stirring fixed supports are arranged on both sides of the rotating motor, a magnetic stirring head is arranged at the top of the stirring fixed supports, and a stirring motor is arranged on the inner side of the stirring fixed supports and connected to the magnetic stirring head.

6. A fully automated titration analyzer according to claim 5, characterized in that The detection device is arranged below the limiting hole corresponding to the titration head, and the magnetic stirring head is arranged in the base body corresponding to the touch operation screen.

7. The fully automated titration analyzer of claim 1, wherein, The detection device comprises a mounting plate fixedly connected to the end of the support horizontal rod, the mounting plate is V-shaped, a detector is fixedly arranged on one side of the mounting plate, and a light supplementing lamp and a camera are arranged on the other side of the detector.

8. A fully automated titration analyzer according to claim 7, characterized in that The included angle between the center line of the side where the detector is arranged on the mounting plate and the central axis of the support horizontal rod is 18°, the included angle between the center line of the side where the camera is arranged on the mounting plate and the central axis of the support horizontal rod is 20°, and the included angle between the support horizontal rod and the longitudinal central axis of the base body is 15°.

9. The fully automated titration analyzer of claim 1, wherein, A work computer, a control board, a titration injection pump connected to the titration head, and reagent adding pumps connected to the reagent adding channel one, the reagent adding channel two, the reagent adding channel three and the reagent adding channel four, respectively, are arranged on the rear side of the base body.

10. The fully automated titration analyzer of claim 1, wherein, Heat dissipation holes are arranged on both sides of the top of the base body, a network socket, a USB socket, a power socket and a power switch are arranged on one side of the bottom of the base body, and a reagent pipeline interface connected to the titration injection pump and the reagent adding pumps is arranged on the other side of the bottom of the base body.

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