PH metering system suitable for automatic operation

Abstract

The utility model provides a pH metering system suitable for automatic operation, which is applied to the technical field of biomedical detection, and is characterized by comprising a workbench and a placing rack, and the placing rack is fixed on the workbench and is used for placing a centrifugal tube to be detected; the immersion cleaning tank is fixed on the workbench; the first moving module is arranged on the workbench; the second moving module is connected with the first moving module; the pH electrode bar is connected with the second moving module, and the first moving module drives the pH electrode bar to horizontally slide back and forth between the placing frame and the immersion cleaning tank; the second moving module drives the pH electrode bar to vertically slide in a reciprocating manner so as to enable the pH electrode bar to be inserted into the centrifugal tube to be detected or immersed in the immersion cleaning tank; the device has the technical effects that the accuracy of sample liquid determination is ensured; the automation degree of the equipment is improved, and the equipment can be integrated into an automatic workstation to realize full-automatic pH measurement of sample liquid.

Description

Technical Field

[0001] This utility model relates to the field of biomedical detection technology, and in particular to a pH metering system suitable for automated operation. Background Technology

[0002] Potentiometric principle: When a glass electrode is immersed in a solution, its sensitive membrane reacts with hydrogen ions in the solution, generating a potential difference proportional to the hydrogen ion concentration (i.e., pH value). This potential difference is converted into a current or voltage signal, which is amplified and processed by electronic circuitry, and finally outputs an electrical signal corresponding to the pH value of the solution.

[0003] In basic scientific research and high-throughput drug screening, pH is a crucial factor in optimizing commonly used detection systems. Common biochemical molecular reactions, such as enzyme activity, protein structure, and binding kinetics, are all affected by the pH of the reaction system. However, the electrode method is cumbersome, involving calibration, washing, and measurement steps. Due to the complexity of the process, current liquid workstations do not have automatic pH detection capabilities, and most measurements are performed manually, resulting in significant waste of manpower. Summary of the Invention

[0004] The purpose of this invention is to provide a pH metering system suitable for automated operation. Its advantages include improved automation and reduced manpower. Furthermore, it can be integrated into an automated workstation to achieve fully automated pH measurement of sample solutions.

[0005] To achieve the above and other related objectives, this utility model provides the following technical solution:

[0006] A pH metering system suitable for automated operation includes a workbench.

[0007] A placement rack, fixed to a workbench, is used to place centrifuge tubes to be tested.

[0008] An immersion tank, which is fixed on a workbench;

[0009] A first mobile module is mounted on a workbench;

[0010] A second mobile module, which is connected to the first mobile module;

[0011] The pH electrode rod is connected to a second moving module. The first moving module drives the pH electrode rod to slide horizontally back and forth between the placement rack and the immersion tank. The second moving module drives the pH electrode rod to slide vertically back and forth so that the pH electrode rod is inserted into the centrifuge tube to be tested or immersed in the immersion tank.

[0012] In one embodiment of the present invention, the placement rack includes a base fixed on the workbench and an adapter fixed on the base, wherein the adapter is provided with a plurality of receiving slots for accommodating centrifuge tubes to be tested.

[0013] In one embodiment of this utility model, a plurality of the receiving grooves are arranged along the X-axis direction.

[0014] In one embodiment of the present invention, a cleaning bracket is fixedly provided on the workbench, and the immersion tank is fixed on the cleaning bracket.

[0015] In one embodiment of this utility model, the immersion tank and several receiving tanks are arranged along the X-axis direction.

[0016] In one embodiment of this utility model, the immersion tank is connected to a clean water pipe and an immersion liquid pipe respectively;

[0017] The bottom of the immersion tank is connected to a waste liquid pipe.

[0018] In one embodiment of the present invention, drying components are arranged opposite to each other on both sides of the cleaning bracket.

[0019] In one embodiment of the present invention, the second movable module is connected to a first fixed plate, and the pH electrode rod is fixedly mounted on the first fixed plate.

[0020] In one embodiment of the present invention, a third moving module connected to the first moving module is further included. The third moving module is connected to a second fixing plate, and an electric conductive rod is fixedly disposed on the second fixing plate.

[0021] As described above, the pH metering system of this invention, which is suitable for automated operation, has the following beneficial effects:

[0022] 1. The rack is used to hold the centrifuge tubes to be tested; the rinsing tank is used to hold the rinsing solution or water; the first moving module is used to drive the pH electrode rod back and forth between the rack and the rinsing tank, and the second moving module is used to drive the electrode rod to move vertically back and forth, so that the pH electrode rod is lowered into the centrifuge tube to detect the pH value of the sample solution or to drive the pH electrode rod to be lowered into the rinsing tank to remove the residual liquid on the pH electrode rod; the automation level of the equipment is improved, and it can be integrated into an automated workstation to realize fully automatic pH measurement of sample solutions;

[0023] 2. The conductivity of the sample solution is measured using a conductivity rod connected to the third moving module;

[0024] 3. The waste liquid pipe connected to the bottom of the immersion tank facilitates the discharge of wastewater from the immersion tank; the immersion liquid pipe is used to inject immersion liquid into the immersion tank, which is used to clean the sample residue on the pH electrode rod and conductivity rod; the clean water pipe is used to inject clean water into the cleaning tank; the clean water is used to clean the residual immersion liquid on the pH electrode rod and conductivity rod, thereby cleaning the pH electrode rod and conductivity rod more thoroughly; the drying components arranged opposite each other on both sides of the cleaning support use convective air to dry the clean water residue on the pH electrode rod and conductivity rod, ensuring the accuracy of sample solution measurement. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the immersion tank according to an embodiment of the present invention.

[0027] Reference numerals: 1. Workbench; 2. Placement rack; 201. Base; 202. Adapter; 5. Immersion tank; 6. First moving module; 7. Second moving module; 8. pH electrode rod; 9. Receiving tank; 10. Cleaning support; 11. Clean water pipe; 12. Immersion solution pipe; 13. Waste liquid pipe; 14. Drying assembly; 15. First fixing plate; 16. Third moving module; 17. Second fixing plate; 18. Conductivity rod; 19. Centrifuge tube to be tested; 20. Air vent. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0029] Please see Figures 1 to 2 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0030] Please see Figure 1 and Figure 2This utility model provides a pH metering system suitable for automated operation, including a workbench 1, a placement rack 2, an immersion tank 5, a first moving module 6, a second moving module 7, a third moving module 16, a pH electrode rod 8, and a conductivity rod 18.

[0031] The placement rack 2 includes a base 201 bolted to the workbench 1 and an adapter 202 bolted to the base 201; the adapter 202 is provided with a plurality of receiving slots 9 for accommodating centrifuge tubes, and the plurality of receiving slots 9 are arranged along the X-axis direction.

[0032] A cleaning bracket 10 is bolted to a workbench 1 located on one side of the placement rack 2. An immersion tank 5 is welded or bolted to the cleaning bracket 10. The immersion tank 5 is located at one end of a plurality of receiving tanks 9 and is arranged along the X-axis with the plurality of receiving tanks 9.

[0033] The side walls of the immersion tank 5 are connected to a clean water pipe 11 and an immersion liquid pipe 12 respectively; one end of the clean water pipe 11 is connected to a water source, and one end of the immersion liquid pipe 12 is connected to an immersion liquid storage tank; two cleanings are performed to prevent cross-contamination; the bottom of the immersion tank 5 is connected to a waste liquid pipe 13, which is used to discharge the waste liquid after cleaning from the immersion tank.

[0034] The cleaning support 10 has drying components 14 arranged opposite to each other on both sides. The immersion tank 5 has air holes 20 on both sides opposite to the drying components. The air blows into the immersion tank 5 through the air holes 20 on both sides to form convection, which can dry the residual liquid on the pH electrode rod 8 and the conductivity rod 18 more quickly. In this embodiment, the drying components 14 are two fans or two air ducts that are fixedly arranged opposite to each other on the cleaning support 10. One end of the two air ducts is connected to an external air source.

[0035] Please see Figure 1 The first moving module 6 is fixedly mounted on the workbench 1 located on one side of the placement rack 2. The first moving module 6 is arranged parallel to the placement rack 2 and the immersion tank 5. The second moving module 7 and the third moving module 16 are both perpendicular to the first moving module 6 and connected to the first moving module 6. The second moving module 7 and the third moving module 16 are arranged parallel to each other and connected together. In this embodiment, the first moving module 6 is an X-axis moving module, and the second moving module 7 and the third moving module 16 are both Z-axis moving modules. The X-axis moving module and the Z-axis moving module are connected together to form a ball screw T-shaped two-axis slide. The ball screw T-shaped two-axis slide can drive the pH electrode rod 8 and the conductivity rod 18 to slide horizontally and vertically. The moving slider on the second moving module 7 is fixedly connected to the first fixing plate 15, and the pH electrode rod 8 is fixedly mounted on the first fixing plate 15. The moving slider on the second moving module 7 is fixedly connected to the second fixing plate 17, and the conductivity rod 18 is fixedly mounted on the second fixing plate 17.

[0036] In summary, in this invention, the first moving module 6 drives the pH electrode rod 8 back and forth between the placement rack 2 and the rinsing tank 5, and the second moving module 7 drives the electrode rod to move vertically back and forth, thereby lowering the pH electrode rod 8 into the centrifuge tube 19 to detect the pH value of the sample solution, or driving the pH electrode rod 8 to be immersed in the rinsing tank 5 to remove residual liquid on the pH electrode rod 8. This improves the automation level of the equipment, saves manpower, and can be integrated into an automated workstation to achieve fully automated pH measurement of sample solutions. Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0037] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A pH metering system suitable for automated operation, characterized in that: Including the workbench (1), Placement rack (2), which is fixed on the workbench (1) and used to place centrifuge tubes (19) to be tested; Immersion tank (5), which is fixed on workbench (1); The first moving module (6) is disposed on the workbench (1); The second mobile module (7) is connected to the first mobile module (6); pH electrode rod (8) is connected to a second moving module (7). The first moving module (6) drives the pH electrode rod (8) to slide horizontally back and forth between the placement rack (2) and the immersion tank (5). The second moving module (7) drives the pH electrode rod (8) to slide vertically back and forth so that the pH electrode rod (8) is inserted into the centrifuge tube (19) to be tested or immersed in the immersion tank (5).

2. The pH metering system suitable for automated operation according to claim 1, characterized in that: The placement rack (2) includes a base (201) fixed on the workbench (1) and an adapter (202) fixed on the base (201). The adapter (202) is provided with several receiving slots (9) for accommodating centrifuge tubes (19) to be tested.

3. A pH metering system suitable for automated operation according to claim 2, characterized in that: Several of the aforementioned receiving slots (9) are arranged along the X-axis direction.

4. A pH metering system suitable for automated operation according to claim 3, characterized in that: A cleaning bracket (10) is fixedly installed on the workbench (1), and the immersion tank (5) is fixed on the cleaning bracket (10).

5. A pH metering system suitable for automated operation according to claim 4, characterized in that: The immersion tank (5) and several receiving tanks (9) are arranged along the X-axis.

6. A pH metering system suitable for automated operation according to claim 4, characterized in that: The immersion tank (5) is connected to a clean water pipe (11) and an immersion liquid pipe (12); The bottom of the immersion tank (5) is connected to a waste liquid pipe (13).

7. A pH metering system suitable for automated operation according to claim 4, characterized in that: Drying components (14) are arranged opposite each other on both sides of the cleaning bracket (10).

8. A pH metering system suitable for automated operation according to claim 1, characterized in that: The second moving module (7) is connected to the first fixing plate (15), and the pH electrode rod (8) is fixedly mounted on the first fixing plate (15).

9. A pH metering system suitable for automated operation according to claim 8, characterized in that: It also includes a third moving module (16) connected to the first moving module (6), the third moving module (16) being connected to a second fixing plate (17), and an electric conductive rod (18) being fixedly disposed on the second fixing plate (17).

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