A solution pH online detection platform
By designing an online solution pH detection platform, which utilizes servo motors and cylinders to drive the movement of the detection electrodes, and combines clamping and cleaning structures, the problems of low efficiency and poor accuracy of pH test strips are solved, achieving efficient and accurate solution pH detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN DUNHUA TECHNOLOGY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-26
AI Technical Summary
Existing pH test strips have low detection efficiency and poor accuracy, and the test results are prone to errors.
An online pH detection platform for solutions was designed. A servo motor drives a lead screw to move a slider and a detection electrode. Combined with cylinder lifting, the platform achieves automated movement of the detection electrode and stable clamping of the platform. The pH value is displayed on a screen, and a cleaning structure is added to improve detection accuracy.
It enables automated detection of solution pH, improving detection efficiency and accuracy, and ensuring the stability of the detection process and the reliability of subsequent detection results.
Smart Images

Figure CN224416781U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solution pH detection technology, and in particular to an online solution pH detection platform. Background Technology
[0002] pH is a core indicator for measuring the acidity or alkalinity of a solution. It is defined as the negative logarithm of the effective concentration of hydrogen ions in the solution. pH detection devices are important tools for measuring and reflecting the acidity or alkalinity of solutions. pH detection electrodes are used to detect the concentration of hydrogen ions in the analyte and convert it into a corresponding usable output signal. They are commonly used for industrial measurements of substances such as solutions and water.
[0003] In existing technologies, pH test strips are typically used to detect the pH of a solution. However, this method is not only inefficient but also has low accuracy, resulting in some degree of error in the test results. Utility Model Content
[0004] The purpose of this invention is to provide an online pH detection platform for solutions, which solves the problems of low detection efficiency, low accuracy, and easy error in detection results of existing pH test strips.
[0005] To achieve the above objectives, an online solution pH detection platform is provided, comprising: a base plate, a support fixedly connected to the top of the base plate, a controller disposed on one side of the support, a display screen disposed on the top of the support, a slide groove fixedly connected to one end of the support, a servo motor fixedly installed on one side of the slide groove, a lead screw fixedly connected to the output end of the servo motor via a coupling, a slider movably connected to the outer wall of the lead screw, a cylinder fixedly connected to the bottom of the slider, and a detection electrode fixedly installed at the output end of the cylinder, facilitating the movement of the detection electrode and thus facilitating the detection of the solution in the container;
[0006] The base plate is provided with a clamping platform at the top, and a clamping groove is provided at the top of the clamping platform. A sleeve is fixedly connected to the inner wall of the clamping groove, and a spring is fixedly connected inside the sleeve. A movable rod is fixedly connected to the other end of the spring, and an arc-shaped clamping plate is fixedly connected to one end of the movable rod. A screw is provided inside the clamping groove to facilitate clamping of the container containing the solution to be tested, thereby improving the stability of the detection process.
[0007] According to the aforementioned online solution pH detection platform, the display screen, servo motor, detection electrode, and controller are all electrically connected to facilitate the transmission of electrical signals.
[0008] According to the aforementioned online pH detection platform for a solution, a screw hole is provided at the center of the side of the slider. The inner wall of the screw hole and the outer wall of the lead screw are both provided with threads. The screw hole and the lead screw are engaged with each other through the threads, which facilitates the movement of the slider and thus facilitates the left and right movement of the detection electrode.
[0009] According to the solution pH online detection platform, a limiting rod is fixedly connected to the inner wall of the chute, and a limiting hole is opened on the side of the slider. The slider is slidably connected to the outer wall of the limiting rod through the limiting hole, which facilitates the limiting of the slider.
[0010] According to the aforementioned online solution pH detection platform, the top of the clamping platform is provided with a placement groove, and a water cup is movably connected inside the placement groove to facilitate the cleaning of the detection electrode.
[0011] According to the solution pH online detection platform, the inner wall of the clamping groove is provided with a second screw hole. The inner wall of the second screw hole and the outer wall of the screw are both provided with threads. The second screw hole and the screw are engaged with each other through threads, which facilitates the movement of the arc-shaped clamping plate and thus facilitates the clamping of the container.
[0012] According to the aforementioned online solution pH detection platform, the inner walls of the chute and the clamping groove are both fixedly equipped with rotating shaft seats, and one end of the lead screw and the screw rod are respectively rotatably connected to the rotating shaft seats to facilitate the rotation of the lead screw and the screw rod.
[0013] The above-mentioned solution has the following beneficial effects:
[0014] 1. This online pH detection platform uses a servo motor to drive the rotation of a lead screw, which in turn moves a slider within a groove. A cylinder is installed at the bottom of the slider, and a detection electrode is installed at the output end of the cylinder, facilitating the movement and lifting of the detection electrode. The detection electrode can detect the solution in the container on the clamping platform and transmit the electrical signal to the display screen, which displays the pH value of the corresponding solution. This achieves automated detection of the solution pH value, improving detection efficiency and the accuracy of the detection results.
[0015] 2. This online pH detection platform for solutions features a clamping groove at the top of the clamping platform. A screw is installed inside the clamping groove, and rotating the screw moves an arc-shaped clamping plate within the groove, thus clamping the container containing the test solution and preventing it from shaking or tipping over, improving the stability of the detection process. Simultaneously, a placement groove is located at the top of the clamping platform, containing a water cup. After completing one solution test, the detection electrode can be immersed in the water cup to wash away any solution adhering to its surface. After immersion, the operator can wipe the surface dry before proceeding with subsequent tests, improving the accuracy of subsequent test results.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0018] Figure 1 This is a three-dimensional structural diagram of an online solution pH detection platform according to the present invention;
[0019] Figure 2 This is a front view of an online solution pH detection platform according to the present invention;
[0020] Figure 3 This utility model relates to an online solution pH detection platform. Figure 1 Enlarged view of point A;
[0021] Figure 4 This is a three-dimensional structural diagram of the slider of an online solution pH detection platform according to the present invention;
[0022] Figure 5 This is a schematic diagram of the internal structure of the clamping groove of the online pH detection platform for a solution according to this utility model;
[0023] Figure 6 This utility model relates to an online solution pH detection platform. Figure 5 Enlarged view of point B.
[0024] Legend:
[0025] 1. Base plate; 2. Bracket; 3. Controller; 4. Display screen; 5. Slide groove; 6. Servo motor; 7. Lead screw; 8. Rotating shaft seat; 9. Limiting rod; 10. Slider; 11. Screw hole one; 12. Limiting hole; 13. Cylinder; 14. Detection electrode; 15. Clamping platform; 16. Placement slot; 17. Water cup; 18. Clamping slot; 19. Sleeve; 20. Spring; 21. Movable rod; 22. Screw; 23. Arc-shaped clamping plate. Detailed Implementation
[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0027] Reference Figure 1-6This utility model discloses an online solution pH detection platform, comprising: a base plate 1, a bracket 2 fixedly connected to the top of the base plate 1, a controller 3 disposed on one side of the bracket 2, a display screen 4 disposed on the top of the bracket 2, a slide groove 5 fixedly connected to one end of the bracket 2, a servo motor 6 fixedly installed on one side of the slide groove 5, a lead screw 7 fixedly connected to the output end of the servo motor 6 via a coupling, a slider 10 movably connected to the outer wall of the lead screw 7, a cylinder 13 fixedly connected to the bottom of the slider 10, and a detection electrode 14 fixedly installed at the output end of the cylinder 13. The servo motor 6 can drive the lead screw 7 to rotate, thereby driving the slider 10 and the detection electrode 14 to move left and right, and the cylinder 13 can drive the detection electrode 14 to rise and fall, thus facilitating the detection electrode 14 to detect the solution in the container.
[0028] A clamping platform 15 is provided on the top of the base plate 1. A clamping groove 18 is provided on the top of the clamping platform 15. A sleeve 19 is fixedly connected to the inner wall of the clamping groove 18. A spring 20 is fixedly connected inside the sleeve 19. A movable rod 21 is fixedly connected to the other end of the spring 20. An arc-shaped clamping plate 23 is fixedly connected to one end of the movable rod 21. A screw 22 is provided inside the clamping groove 18. By rotating the screw 22, the arc-shaped clamping plate 23 can be moved. Thus, the container can be clamped by the arc-shaped clamping plate 23 and the clamping groove 18 to prevent it from tipping over.
[0029] The display screen 4, servo motor 6, detection electrode 14 and controller 3 are all electrically connected to facilitate the transmission of electrical signals.
[0030] A screw hole 11 is provided at the center of the side of the slider 10. The inner wall of the screw hole 11 and the outer wall of the lead screw 7 are both provided with threads. The screw hole 11 and the lead screw 7 are engaged with each other through the threads. When the lead screw 7 is driven by the servo motor 6 to rotate, it can drive the slider 10 to move left and right, thereby facilitating the adjustment of the position of the detection electrode 14.
[0031] The inner wall of the slide 5 is fixedly connected to the limiting rod 9, and the side of the slider 10 is provided with the limiting hole 12. The slider 10 is slidably connected to the outer wall of the limiting rod 9 through the limiting hole 12, which facilitates the guidance and limiting of the slider 10 and improves the stability of the slider 10 during movement.
[0032] The top of the clamping platform 15 is provided with a placement groove 16, and a water cup 17 is movably connected inside the placement groove 16. After completing a solution test, the detection electrode 14 can be moved into the water cup 17 to soak and clean the solution on its surface, thereby improving the accuracy of subsequent solution test results.
[0033] The inner wall of the clamping groove 18 is provided with a screw hole 2. The inner wall of the screw hole 2 and the outer wall of the screw rod 22 are both provided with threads. The screw hole 2 and the screw rod 22 are engaged with each other through threads. Rotating the screw rod 22 can drive the movement of the arc-shaped clamping plate 23, thereby facilitating the clamping of the container.
[0034] Rotating shaft seats 8 are fixedly installed on the inner walls of both the slide groove 5 and the clamping groove 18. One end of the lead screw 7 and the screw 22 are rotatably connected to the rotating shaft seats 8, which facilitates the rotation of the lead screw 7 and the screw 22.
[0035] Working principle: Containers containing the solution to be tested are placed sequentially into the clamping groove 18 at the top of the clamping platform 15. The screw 22 is rotated sequentially, causing the arc-shaped clamping plate 23 to move. The arc-shaped clamping plate 23, in conjunction with the clamping groove 18, clamps the container, facilitating its positioning and preventing it from tipping over during testing. After clamping, the servo motor 6 drives the lead screw 7 to rotate, which in turn moves the slider 10 left and right, facilitating the left and right movement of the detection electrode 14. Simultaneously, the cylinder 13 moves the detection electrode 14 up and down, allowing it to test the solution in containers at different positions on the clamping platform 15. During testing, the detection electrode 14 transmits an electrical signal to the display screen 4, which displays the pH value of the corresponding solution. After one solution test is completed, the servo motor 6 and cylinder 13 move the detection electrode 14 into a water cup 17 for immersion, washing away the solution on its surface. After cleaning, the operator wipes the surface of the detection electrode 14 dry before proceeding with subsequent solution tests.
[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An online pH detection platform for a solution, comprising: The base plate (1) is characterized in that a bracket (2) is fixedly connected to the top of the base plate (1), a controller (3) is provided on one side of the bracket (2), a display screen (4) is provided on the top of the bracket (2), a slide groove (5) is fixedly connected to one end of the bracket (2), a servo motor (6) is fixedly installed on one side of the slide groove (5), a lead screw (7) is fixedly connected to the output end of the servo motor (6) through a coupling, a slider (10) is movably connected to the outer wall of the lead screw (7), a cylinder (13) is fixedly connected to the bottom of the slider (10), and a detection electrode (14) is fixedly installed at the output end of the cylinder (13). The top of the base plate (1) is provided with a clamping platform (15), and the top of the clamping platform (15) is provided with a clamping groove (18). A sleeve (19) is fixedly connected to the inner wall of the clamping groove (18), and a spring (20) is fixedly connected inside the sleeve (19). A movable rod (21) is fixedly connected to the other end of the spring (20), and an arc-shaped clamping plate (23) is fixedly connected to one end of the movable rod (21). A screw (22) is provided inside the clamping groove (18).
2. The online pH detection platform for a solution according to claim 1, characterized in that, The display screen (4), servo motor (6), detection electrode (14) and controller (3) are all electrically connected.
3. The online pH detection platform for a solution according to claim 1, characterized in that, The slider (10) has a screw hole (11) at the center of its side. The inner wall of the screw hole (11) and the outer wall of the lead screw (7) are both threaded. The screw hole (11) and the lead screw (7) are engaged with each other by the threads.
4. The online pH detection platform for a solution according to claim 1, characterized in that, The inner wall of the slide (5) is fixedly connected to a limiting rod (9), and the side of the slider (10) is provided with a limiting hole (12). The slider (10) is slidably connected to the outer wall of the limiting rod (9) through the limiting hole (12).
5. The online pH detection platform for a solution according to claim 1, characterized in that, The top of the clamping platform (15) is provided with a placement slot (16), and a water cup (17) is movably connected inside the placement slot (16).
6. The online pH detection platform for a solution according to claim 1, characterized in that, The inner wall of the clamping groove (18) is provided with a screw hole II. The inner wall of the screw hole II and the outer wall of the screw rod (22) are both provided with threads. The screw hole II and the screw rod (22) are engaged with each other through threads.
7. The online pH detection platform for a solution according to claim 1, characterized in that, The inner walls of the slide groove (5) and the clamping groove (18) are both fixedly installed with rotating shaft seats (8), and one end of the lead screw (7) and the screw rod (22) are respectively rotatably connected to the rotating shaft seats (8).