Full-automatic chemical solution PH detection equipment and method

Abstract

The invention discloses full-automatic chemical solution PH detection equipment and a full-automatic chemical solution PH detection method, solves the problem of low efficiency caused by concentration of a detection head and a liquid adding port in the prior art, and has the beneficial effects of reasonable space utilization, reasonable arrangement of structural members and improvement of detection efficiency. Comprising a rack, a workbench is supported by the rack, a calibration tank body, a cleaning tank body and a tray positioning piece are sequentially arranged from one side to the other side of the workbench, a calibration solution is contained in the calibration tank body, the calibration tank body and the cleaning tank body are arranged in an attached mode, the tray positioning piece and the cleaning tank body are arranged in a spaced mode, and the tray positioning piece is used for positioning a tray. A plurality of rows and columns of supporting parts are arranged on the tray to support the container, the PH electrode assembly and the liquid adding assembly are supported through the rack and are both arranged above the workbench, the PH electrode assembly comprises a plurality of PH electrodes, and the liquid adding assembly comprises a plurality of liquid adding pieces.

Description

Technical Field

[0001] This invention relates to the field of pH value detection technology, and in particular to a fully automated chemical solution pH detection device and method. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Currently, pH measurement mainly relies on manual operation or semi-automated equipment. The typical process is as follows: the operator immerses the pH electrode in the solution to be tested, manually reads and records the instrument value. If continuous monitoring or multi-sample testing is required, the electrode needs to be cleaned frequently and the operation repeated. Although some semi-automated equipment has basic data recording functions, manual intervention is still required for calibration, sample switching, and result analysis.

[0004] The problems and shortcomings include: Significant human error: When manually reading pH values, differences in operators' interpretation of the instrument scale and inconsistent electrode immersion depths can lead to large deviations in measurement results.

[0005] Low testing efficiency: Testing a single sample takes 5-10 minutes, and testing multiple samples requires manual processing one by one, which cannot meet the needs of batch testing (such as environmental monitoring and real-time quality control on industrial production lines).

[0006] High electrode maintenance costs: manual operation leads to frequent electrode contamination and wear, short calibration cycles, and a large workload for maintenance.

[0007] Data management is chaotic: manual data recording is prone to errors and cannot meet the traceability needs in scientific research or production.

[0008] The causes of these problems and shortcomings are primarily due to human factors: the testing process relies on the experience and skill of operators, lacking standardized automated execution mechanisms. Insufficient equipment intelligence: existing equipment does not integrate automatic sample introduction, calibration, and data processing modules, failing to achieve full-process automation. Lack of multi-channel collaborative capabilities: single-channel detection modes cannot process multiple samples in parallel, leading to resource waste.

[0009] Some existing pH intelligent measurement systems have been disclosed, but the problem is that the existing detection devices can support multiple containers to be tested, but the detection head and the liquid inlet are usually integrated together, which makes the overall layout unreasonable. After the detection head and the liquid inlet are integrated together, they must move at the same time. If they move at the same time, the working efficiency is low. Moreover, a single test usually only achieves one or two tests, which further affects the detection efficiency. The existing device has an unreasonable overall layout. The calibration solution and cleaning tank used to calibrate the detection head are usually set far apart. After cleaning the detection head, it needs to be moved, and it has to be moved a long distance to reach the calibration solution. The long distance makes it easy for the detection head to get wet and dirty, which affects the accuracy of the detection results. Existing devices for cleaning the detection head simply use a solution to clean it. However, the problem is that the detection head is still wet after cleaning, making it impossible to perform the test immediately. If the test is performed directly, it will affect the accuracy of the test results. In addition, existing devices are usually for environmental detection, which is a gaseous environment. The requirements for environmental detection are different from those for chemical solution detection. Some substances require the addition of a set amount of water when detecting pH. A certain amount of water needs to be added to each container to be tested, resulting in high water demand. Although existing detection devices can add liquid, they usually only have one liquid inlet. Summary of the Invention

[0010] To address the shortcomings of existing technologies, the purpose of this invention is to provide a fully automated chemical solution pH detection device to improve the efficiency of pH detection.

[0011] To achieve the above objectives, the present invention is implemented through the following technical solution: A fully automated chemical solution pH testing device includes a frame and a frame-supported workbench. A calibration tank, a cleaning tank, and a tray positioning component are sequentially arranged along one side of the workbench to the other. The calibration tank contains a calibration solution and is fitted to the cleaning tank. The tray positioning component is spaced apart from the cleaning tank and is used to position the tray. The tray has multiple rows and columns of support parts to support the container. A pH electrode assembly and a liquid dispensing assembly are supported by the frame and are both positioned above the workbench. The pH electrode assembly and the liquid dispensing assembly are respectively connected to corresponding multi-directional motion mechanisms, which are supported by the upper side of the frame. The pH electrode assembly includes multiple pH electrodes, and the liquid dispensing assembly includes multiple liquid dispensing components.

[0012] As described above, in a fully automated chemical solution pH detection device, considering space utilization, the multi-directional motion mechanism of the pH electrode assembly has a greater range of motion than the multi-directional motion mechanism of the liquid addition assembly. The pH electrode assembly and the liquid dispensing assembly can be placed on opposite sides of the frame, which will not cause interference between the pH electrode assembly and the liquid dispensing assembly, and will also facilitate their coordinated operation.

[0013] As described above, in a fully automated chemical solution pH testing device, the length of the calibration tank and the cleaning tank are both arranged along the width of the workbench, and the calibration tank and the cleaning tank are spaced apart from the upper side of the frame.

[0014] As described above, a fully automated chemical solution pH testing device includes a cleaning tank comprising a housing, a first inner frame and a second inner frame inside the housing. The first inner frame holds water, and the second inner frame is positioned above the first inner frame. The housing is positioned higher than the second inner frame to prevent water blown away from entering the calibration tank. The top and bottom of the second inner frame are in sealed contact with the inner wall of the housing. The sides of the second inner frame are spaced apart from the inner wall of the housing. The housing is connected to an air supply component at the second inner frame. The second inner frame has multiple air outlets. The gas discharged from the second inner frame blows air onto the pH electrode to remove water from the pH electrode and ensure its dryness.

[0015] As described above, in a fully automated chemical solution pH detection device, the top and bottom of the first inner frame are in sealed contact with the inner wall of the housing, and a water inlet pipe is provided at the first inner frame. The water inlet pipe passes through the first inner frame and the housing and is connected to the first water supply component.

[0016] As described above, a fully automated chemical solution pH testing device includes a calibration tank comprising a base connected to the cleaning tank. The base is provided with a slot that supports multiple liquid storage seats. The size of the slot is adapted to the size of the multiple liquid storage seats. Each liquid storage seat is provided with a calibration tank, and the distance between adjacent calibration tanks is set or they are in contact.

[0017] As described above, in a fully automated chemical solution pH detection device, the tray positioning component comprises multiple positioning protrusions, each of which is conical, and the bottom of the tray is provided with multiple recesses, the sizes of which are adapted to the positioning protrusions. The pallet includes a pallet plate, a pallet plate supporting a cover plate, a spaced distance between the cover plate and the pallet plate, and the cover plate is provided with multiple support portions; The support part is a round hole, and the container can be placed in the round hole.

[0018] As described above, a fully automated chemical solution pH detection device includes a pH electrode assembly comprising a first support plate that supports a plurality of pH electrodes, the positions of which correspond one-to-one with the positions of each column of the support portions on the tray. The liquid filling assembly includes a second support plate, which supports a plurality of liquid filling components. The positions of the liquid filling components correspond one-to-one with the positions of each column of the support portions on the tray. The liquid filling device includes a water pipe with a set length, which is fixed to the second support plate, and a pipe joint is provided at the top of the water pipe.

[0019] As described above, a fully automated chemical solution pH detection device includes a multi-directional motion mechanism comprising a horizontal linear slide rail, a first slider of the horizontal linear slide rail connected to a vertical linear slide rail, and a second slider of the vertical linear slide rail connected to the pH electrode assembly or the liquid addition assembly. The frame also supports a controller on one side of the workbench. The controller is connected to the multi-directional motion mechanism, the cleaning tank, the pH electrode, and the liquid adding component.

[0020] Secondly, the present invention also provides a fully automated method for detecting the pH of a chemical solution, employing the aforementioned fully automated pH detection device, comprising the following: A calibration tank, a cleaning tank, and a tray positioning device are set up at the workbench. The pH electrode assembly is moved into the calibration tank for positioning. The calibration solution is placed in the calibration tank; The substance to be tested is placed into a container, and the tray containing the container is placed on the workbench. The tray is positioned by the tray positioning device. The liquid filling component moves above the container and, driven by the corresponding multi-directional motion mechanism, injects a set amount of water into all the containers; Driven by the corresponding multi-directional motion mechanism, the pH electrode assembly moves to the top of the tray and sequentially tests the chemical solutions in all containers. After the test is completed, the pH electrode assembly is moved to the cleaning tank. The pH electrode assembly moves up and down to clean itself. After cleaning, the pH electrode assembly returns to the waiting position.

[0021] The beneficial effects of the present invention are as follows: 1) In this invention, the frame supports the pH electrode assembly and the liquid filling assembly respectively. The pH electrode assembly and the liquid filling assembly are connected by corresponding multi-directional motion mechanisms to achieve their respective movements. They are not integrated together, so they can move independently. After liquid is added to a row of containers, the pH electrode assembly can perform detection. The pH electrode assembly and the liquid filling assembly work together, which helps to improve work efficiency.

[0022] 2) The overall layout of this invention is reasonable. The calibration tank, cleaning tank and tray are supported by the workbench. The structural components on the surface of the workbench are arranged in a reasonable manner. The upper side of the frame supports the multi-directional motion mechanism corresponding to the pH electrode assembly and the liquid addition assembly. This makes reasonable use of the space above the workbench. It also allows the pH electrode assembly and the liquid addition assembly to be placed on opposite sides of the frame without causing interference, and it is also conducive to their collaborative work.

[0023] 3) The cleaning tank structure in this invention is reasonably designed. The cleaning tank includes a shell, and a first inner frame and a second inner frame are provided inside the shell. The second inner frame is placed above the first inner frame. After the pH electrode is cleaned by water, the gas discharged from the second inner frame blows air onto the pH electrode to blow away the water at the pH electrode, ensuring the pH electrode is dry and ensuring the accuracy of the test results. Moreover, the test head is maintained by blowing air, reducing maintenance costs.

[0024] 4) In this invention, the calibration tank is positioned appropriately. The base of the calibration tank supports multiple liquid storage seats, and the liquid storage seats are equipped with calibration tanks. The calibration tanks contain calibration liquid. The size of the base is compatible with the size of the multiple liquid storage seats, ensuring the stability of the calibration tank and facilitating the quick replacement of the calibration liquid in the liquid storage seats. Moreover, the calibration is performed after the pH electrode is cleaned. If the calibration tank is placed between the cleaning tank and the tray, the calibration liquid must be bypassed to reach the cleaning tank after the test, which may easily contaminate the calibration liquid. This helps to ensure the accuracy of the test results. Attached Figure Description

[0025] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0026] Figure 1 This is a schematic diagram of a fully automated chemical solution pH detection device according to one or more embodiments of the present invention. Figure 1 .

[0027] Figure 2 This is a schematic diagram of a fully automated chemical solution pH detection device according to one or more embodiments of the present invention. Figure 2 .

[0028] Figure 3 This is an enlarged version of a portion of the structure in a fully automated chemical solution pH detection device according to one or more embodiments of the present invention. Figure 1 .

[0029] Figure 4 This is an enlarged version of a portion of the structure in a fully automated chemical solution pH detection device according to one or more embodiments of the present invention. Figure 2 .

[0030] Figure 5 This is an exploded view of the tray structure in a fully automated chemical solution pH detection device according to one or more embodiments of the present invention.

[0031] Figure 6 This is a schematic diagram of the tray structure in a fully automated chemical solution pH detection device according to one or more embodiments of the present invention.

[0032] Figure 7 This is a schematic diagram of a fully automated chemical solution pH detection device according to one or more embodiments of the present invention without a tray.

[0033] Figure 8 This is a schematic flowchart of a fully automated chemical solution pH detection method according to one or more embodiments of the present invention.

[0034] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0035] The components are: 1. Frame cover, 2. Operable display screen, 3. pH electrode assembly, 4. First support plate, 5. Calibration tank, 6. Cleaning tank, 7. Tray, 8. Workbench, 9. Vertical linear slide rail, 10. Second support plate, 11. Liquid addition assembly, 12. Support part, 13. pH electrode, 14. Housing, 15. Second inner frame, 16. First inner frame, 17. Cover plate, 18. Tray positioning component, 19. Liquid addition component, 20. Base, 21. Liquid storage base, 22. Tray plate, 23. Side plate, 24. Container, 25. Magnetic stirring mechanism. Detailed Implementation

[0036] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0037] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. As described in the background section, the existing technology suffers from low efficiency and an unreasonable overall layout due to the concentration of the detection head and the liquid inlet, which can easily lead to contamination of the calibration solution. In order to solve the above technical problems, this invention proposes a fully automated chemical solution pH detection device.

[0038] Example 1 In a typical embodiment of the present invention, reference is made to Figure 1 and Figure 2As shown, a fully automated chemical solution pH testing device includes a frame, a frame-supported workbench 8, and a calibration tank 5, a cleaning tank 6, and a tray positioning component 18 arranged sequentially from one side to the other along the workbench 8. The calibration tank 5 contains a calibration solution and is fitted to the cleaning tank 6. The tray positioning component 18 is spaced apart from the cleaning tank 6 and is used to position a tray 7. The tray 7 is provided with multiple rows and columns of support parts 12 to support the container. The frame supports a pH electrode assembly 3 and a liquid addition assembly 11. Both the pH electrode assembly 3 and the liquid addition assembly 11 are placed above the workbench 8. The pH electrode assembly 3 and the liquid addition assembly 11 are respectively connected to corresponding multi-directional motion mechanisms, which are supported by the upper side of the frame. The pH electrode assembly 3 includes multiple pH electrodes 13, and the liquid addition assembly 11 includes multiple liquid addition parts 19, with liquid addition ports formed at the ends of the liquid addition parts.

[0039] The testing equipment provided in this embodiment has a reasonable arrangement of the positions of each structural component on the workbench 8. After the pH electrode 13 is cleaned, it enters the calibration tank for calibration. If the calibration tank 5 is placed between the cleaning tank 6 and the tray 7, then after the test is completed, it has to go around the calibration liquid to reach the cleaning tank 6, which is easy to contaminate the calibration liquid. This helps to ensure the accuracy of the test results. The upper side of the frame supports the multi-directional motion mechanism corresponding to the pH electrode assembly 3 and the liquid addition assembly 11, thus making reasonable use of the space above the workbench.

[0040] The testing equipment provided in this embodiment makes reasonable use of space. In standby mode, the pH electrode assembly 3 and the liquid addition assembly 11 can be placed on opposite sides of the frame without causing interference between them, which is also conducive to their coordinated work. In standby mode, the pH electrode assembly 3 is located on the calibration tank 5 side, and the liquid addition assembly 11 is placed on the side close to the tray 7. In this way, the movement range of the multi-directional motion mechanism of the liquid addition assembly 11 can cover the area above the tray 7. Considering the utilization of space, the movement range of the multi-directional motion mechanism of the pH electrode assembly 3 is greater than that of the multi-directional motion mechanism of the liquid addition assembly 11. The movement range of the pH electrode assembly 3 covers the tray 7, the cleaning tank 6, and the calibration tank 5.

[0041] It is understandable that the frame supports the workbench 8, the frame is covered by a frame cover, the frame part is located above the workbench 8, the frame supports the multi-directional motion mechanism above the workbench 8, the length direction of the calibration tank 5 and the cleaning tank 6 are both set along the width direction of the workbench 8, and the calibration tank 5 and the cleaning tank 6 are spaced apart from the upper side of the frame.

[0042] Specifically, the multi-directional motion mechanism includes a horizontal linear slide rail, which is set along the length of the worktable. The first slider of the horizontal linear slide rail is connected to the vertical linear slide rail 9, and the second slider of the vertical linear slide rail 9 is connected to the pH electrode assembly 3 or the liquid addition assembly 11. The vertical linear slide rail 9 is set along the height of the frame cover. The length of the horizontal linear slide rail of the pH electrode assembly 3 is greater than the length of the horizontal linear slide rail of the liquid addition assembly, and the two horizontal linear slide rails are set parallel to each other. To achieve automated testing, a controller is also supported on one side of the workbench 8. The controller is a PLC controller or other type of controller. The controller is located inside the frame cover 1. The controller is connected to the multi-directional motion mechanism, the first water supply component and air supply component of the cleaning tank 6, the pH electrode 13, and the second water supply component of the liquid addition component 19. The controller is connected to the operable display screen 2, which is installed at the frame cover 1 for convenient input of parameters, etc.

[0043] In this embodiment, the cleaning tank 6 includes a housing 14, as shown in the reference. Figure 3 As shown, the length of the housing 14 is along the width of the workbench. A first inner frame 16 and a second inner frame 15 are disposed inside the housing 14. The first inner frame 15 holds water for cleaning the pH electrode 13. The second inner frame 15 is positioned above the first inner frame. The first inner frame 16 and the second inner frame 15 are in close contact, or a sealing ring is provided between them to prevent water from entering between the first inner frame 16 and the housing 14. The housing 14 has a bottom plate, while neither the first inner frame 16 nor the second inner frame 15 has a top or bottom plate. The housing 14 is a cuboid, and both the first inner frame 16 and the second inner frame 15 are adapted to the shape of the housing 14. The housing 14 is positioned higher than the second inner frame 15 to prevent water blown away from entering the calibration tank 5. The top and bottom of the second inner frame 15 are in sealed contact with the inner wall of the housing 14. The side of the second inner frame 15 is spaced apart from the inner wall of the housing 14. The housing 14 is connected to an air supply component at the second inner frame 15. The air supply component is an air compressor. The air compressor supplies air between the second inner frame 15 and the housing 14 through a pipeline. The side wall of the second inner frame 15 is provided with multiple air outlets. The air discharged from the air outlets of the second inner frame blows air onto the pH electrode 13 to blow away the water at the pH electrode and ensure that the pH electrode is dry.

[0044] In addition, the top and bottom of the first inner frame 16 are in sealed contact with the inner wall of the housing 14. A water inlet pipe is provided at the first inner frame 16. The water inlet pipe passes through the first inner frame 16 and the housing 14 and is connected to the first water supply component. The first water supply component includes a water pump. A first switch is located at the water inlet pipe. A water pump and a water tank can be installed below the workbench 8. The water pump sends water from the water tank into the first inner frame 16. A drain hole is provided at the bottom of the housing 14. The drain hole is connected to a drain pipe. A drain switch, such as a solenoid valve, is provided at the drain pipe. A controller is connected to the drain switch. Controlling the drain switch can discharge the cleaning water. The controller can control the opening of the first switch, such as the solenoid valve, to supply water to the first inner frame.

[0045] refer to Figure 3 As shown, the calibration tank 5 includes a base 20. The base 20 is connected to the shell 14 of the cleaning tank 6, or the base 20 and the shell 14 are an integral structure and are fixed together to the surface of the workbench 8. The base 20 is provided with a slot, which supports multiple liquid storage seats 21. Specifically, four liquid storage seats can be provided. The height of the liquid storage seats 21 is higher than the height of the base 20. Each liquid storage seat contains either calibration solution or clean water. The first liquid storage seat away from the tray contains clean water, making the first liquid storage seat a waiting position. After the test is completed, the pH motor returns to the first liquid storage seat. The other three liquid storage seats are used to hold calibration solution. The calibration solution is used to calibrate the pH electrode to ensure the accuracy of the test. The size of the slot in the base 20 is adapted to the size of multiple liquid reservoirs 21 (the length of the liquid reservoir 21 is the same as the length of the slot in the base, and the sum of the widths of the multiple liquid reservoirs 21 is the same as the width of the slot in the base 20). That is, the multiple liquid reservoirs 21 are precisely fitted in the base 20, ensuring the stability of the calibration tank 5 and facilitating the quick replacement of the calibration solution in the liquid reservoir. Each liquid reservoir 21 is equipped with a calibration tank. The distance between adjacent calibration tanks is set or they are in contact. To ensure the stability of the liquid reservoir, the adjacent calibration tanks are in contact.

[0046] In addition, the controller stores the location information of the calibration solution. The location information of the calibration solution corresponds one-to-one with the type of calibration solution. The controller can be used to place the pH electrode assembly 3 at different calibration solutions.

[0047] It is easy to understand that, reference Figure 4 As shown, the pallet positioning component 18 consists of multiple positioning protrusions, which are conical. The bottom of the pallet 7 has multiple recesses that are matched with the dimensions of the positioning protrusions. Specifically, four positioning protrusions can be provided to accurately position the pallet positioning component 18. By lifting the pallet upward, the pallet 7 can be separated from the worktable 8, enabling quick pallet replacement.

[0048] In this embodiment, reference Figure 5 and Figure 6As shown, the pallet 7 includes a pallet plate 22, which supports a cover plate 17 via a side plate 23. The cover plate 17 and the pallet plate 22 are spaced apart. The cover plate 17 is provided with multiple support parts 12. The support parts 12 are round holes, in which the container 24 can be placed to ensure stable support for the container 24. Multiple legs are provided around the cover plate 17 to place the cover plate 17 inside the pallet plate. The side plate is provided with an open slot to facilitate the placement and removal of the pallet 7.

[0049] It is easy to understand that, reference Figure 7 As shown, multiple magnetic stirring mechanisms 25 are set at the workbench. The positions of the magnetic stirring mechanisms 25 and the support parts in the tray correspond one-to-one. When the magnetic stirring mechanism 25 is working, it drives the magnetic stirring rotor in the container 24 to rotate, thereby stirring the objects in the container 24.

[0050] Specifically, the PH electrode assembly 3 includes a first support plate 4, which is connected to the second slider of the vertical linear slide rail 9 of the corresponding multi-directional motion mechanism. The first support plate supports multiple PH electrodes 13, and the position of the PH electrodes corresponds one-to-one with the position of each row of support parts 12 at the tray 7. The liquid filling assembly 11 includes a second support plate 10, which is connected to the second slider of the vertical linear slide rail 9 corresponding to the multi-directional motion mechanism. The second support plate 10 supports multiple liquid filling components 19, and the positions of the liquid filling components 19 correspond one-to-one with the positions of each row of support parts at the tray 7. Specifically, the liquid filling component 19 includes a water pipe with a set length, which is fixed to the second support plate 10. A pipe connector is provided at the top of the water pipe to connect with the water delivery pipe. The water delivery pipe is equipped with a second water supply component, which includes a water pump. Of course, the water pump of the second water supply component can be the same as the water pump of the first water supply component. The water delivery pipe is equipped with a second switch, which is connected to a controller and controlled by the controller to open or close the second switch.

[0051] In the detection device provided in this embodiment, the pH electrode assembly 3 and the liquid addition assembly 11 are respectively connected by corresponding multi-directional motion mechanisms to achieve their respective movements. They are not integrated together and can move independently. After liquid is added to a row of containers, the pH electrode assembly can perform detection. The pH electrode assembly 3 and the liquid addition assembly 11 work together, which helps to improve work efficiency.

[0052] Example 2 This embodiment provides a fully automated method for detecting the pH of a chemical solution, using the fully automated pH detection device described in Embodiment 1, with reference to... Figure 5 (The probe refers to the pH electrode) As shown, it includes the following: A magnetic stirring rotor is placed in each container. The substance to be tested is loaded into the container, which is a 50ml beaker. The tray 7 containing the container is placed on the workbench 8. The tray 7 is positioned by the tray positioning component 18. The equipment is turned on, and the calibration tank 5 and cleaning tank 6 are set at the workbench 8. The pH electrode assembly 3 is moved to the calibration tank 5 for positioning. The calibration solution is placed in calibration tank 5; The liquid addition component 11 moves to the top of the container and, driven by the corresponding multi-directional motion mechanism, injects a set amount of water into all the containers. After heating is completed, the magnetic stirring mechanism starts to work, thoroughly mixing the sample and liquid in each beaker. The pH electrode assembly 3 moves to the top of the tray 7 under the drive of the corresponding multi-directional motion mechanism, and sequentially detects the chemical solutions in all containers; After the test is completed, the pH electrode assembly 3 moves to the cleaning tank and moves up and down to clean it. After cleaning, the pH electrode assembly 3 returns to the waiting position. The controller controls the pH electrode assembly to move above the first liquid storage seat 21 and then moves down to contact the clean water.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A fully automated chemical solution pH detection device, characterized in that, The device includes a frame, a frame-supported workbench, and a calibration tank, a cleaning tank, and a tray positioning component arranged sequentially from one side of the workbench to the other. The calibration tank contains a calibration solution and is fitted to the cleaning tank. The tray positioning component is spaced apart from the cleaning tank and is used to position the tray. The tray has multiple rows and columns of support parts to support the container. The frame supports a pH electrode assembly and a liquid dispensing assembly, both of which are located above the workbench. The pH electrode assembly and the liquid dispensing assembly are respectively connected to corresponding multi-directional motion mechanisms, which are supported by the upper side of the frame. The pH electrode assembly includes multiple pH electrodes, and the liquid dispensing assembly includes multiple liquid dispensing components.

2. The fully automated chemical solution pH detection device according to claim 1, characterized in that, The range of motion of the multi-directional motion mechanism of the pH electrode assembly is greater than the range of motion of the multi-directional motion mechanism of the liquid addition assembly. The pH electrode assembly and the liquid addition assembly can be placed on opposite sides of the frame.

3. The fully automated chemical solution pH detection device according to claim 1, characterized in that, The length of both the calibration tank and the cleaning tank is along the width of the workbench, and the calibration tank and the cleaning tank are spaced apart from the upper side of the frame.

4. The fully automated chemical solution pH detection device according to claim 1, characterized in that, The cleaning tank includes a shell, inside which a first inner frame and a second inner frame are provided. The first inner frame is filled with water, and the second inner frame is placed above the first inner frame. The shell is set higher than the second inner frame. The top and bottom of the second inner frame are in sealed contact with the inner wall of the shell. The side of the second inner frame is spaced apart from the inner wall of the shell. The shell is connected to an air supply component at the second inner frame. The second inner frame is provided with multiple air outlets.

5. The fully automated chemical solution pH detection device according to claim 4, characterized in that, The top and bottom of the first inner frame are in sealed contact with the inner wall of the shell. A water inlet pipe is provided at the first inner frame. The water inlet pipe passes through the first inner frame and the shell and is connected to the first water supply component.

6. The fully automated chemical solution pH detection device according to claim 1, characterized in that, The calibration tank includes a base connected to the cleaning tank. The base has a slot that supports multiple liquid storage seats. The size of the slot is adapted to the size of the multiple liquid storage seats. Each liquid storage seat is provided with a calibration slot. The distance between adjacent calibration slots is set or they are in contact.

7. The fully automated chemical solution pH detection device according to claim 1, characterized in that, The pallet positioning component consists of multiple positioning protrusions, which are tapered. The bottom of the pallet is provided with multiple recesses, the sizes of which are adapted to the positioning protrusions. The pallet includes a pallet plate, a pallet plate supporting a cover plate, a spaced distance between the cover plate and the pallet plate, and the cover plate is provided with multiple support portions; The support part is a round hole, and the container can be placed in the round hole.

8. The fully automated chemical solution pH detection device according to claim 1, characterized in that, The pH electrode assembly includes a first support plate, which supports a plurality of pH electrodes. The positions of the pH electrodes correspond one-to-one with the positions of each column of the support portions on the tray. The liquid filling assembly includes a second support plate, which supports a plurality of liquid filling components. The positions of the liquid filling components correspond one-to-one with the positions of each column of the support portions on the tray. The liquid filling device includes a water pipe with a set length, which is fixed to the second support plate, and a pipe joint is provided at the top of the water pipe.

9. The fully automated chemical solution pH detection device according to claim 1, characterized in that, The multi-directional motion mechanism includes a horizontal linear slide rail, a first slider of the horizontal linear slide rail connected to a vertical linear slide rail, and a second slider of the vertical linear slide rail connected to the pH electrode assembly or the liquid addition assembly. The frame also supports a controller on one side of the workbench. The controller is connected to the multi-directional motion mechanism, the cleaning tank, the pH electrode, and the liquid adding component.

10. A fully automated method for detecting the pH of a chemical solution, characterized in that, The fully automated chemical solution pH detection device according to any one of claims 1-9 includes the following components: A calibration tank, a cleaning tank, and a tray positioning device are set up at the workbench. The pH electrode assembly is moved into the calibration tank for positioning. The calibration solution is placed in the calibration tank; The substance to be tested is placed into a container, and the tray containing the container is placed on the workbench. The tray is positioned by the tray positioning device. The liquid filling component moves above the container and, driven by the corresponding multi-directional motion mechanism, injects a set amount of water into all the containers; Driven by the corresponding multi-directional motion mechanism, the pH electrode assembly moves to the top of the tray and sequentially tests the chemical solutions in all containers. After the test is completed, the pH electrode assembly is moved to the cleaning tank, where it moves up and down to clean itself. Once cleaning is complete, the pH electrode assembly returns to its waiting position.

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