Titration detection device

Abstract

The utility model belongs to the technical field of sample detection, and discloses a titration detection device which comprises a turntable, a positioning assembly, a sample liquid titration assembly, a liquid medicine titration assembly and a detection assembly, and the turntable can drive a mixing container on the turntable to sequentially rotate to the sample liquid titration assembly, the liquid medicine titration assembly and the detection assembly; the positioning assembly is used for fixing the mixing container when the mixing container rotates along with the turntable; the sample liquid titration assembly is used for quantitatively supplying a sample liquid into the mixing container on the turntable; the liquid medicine titration assembly is used for quantitatively supplying liquid medicine into the mixing container on the turntable; the detection assembly comprises a color detection sensor used for identifying the color of liquid in the mixing container. The titration detection device can improve the detection precision and the detection efficiency of the titration detection process.

Description

Technical Field

[0001] This utility model relates to the field of sample testing technology, and in particular to a titration testing device. Background Technology

[0002] Content detection items, such as peracetic acid, dilute acid, and dilute alkali, require manual sampling, manual titration, and counting titration followed by detection using a colorimeter with a color detection sensor. During the detection process, operators are easily affected by external interference, and there are certain errors in the sampling amount or the amount of reagent added. Moreover, the titration detection takes a long time and the detection efficiency is low. Utility Model Content

[0003] The purpose of this invention is to provide a titration detection device to solve the problems of low detection accuracy and efficiency in titration detection.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A titration detection device includes a detection stage, a turntable, a rotation drive, a positioning component, a sample titration component, a drug titration component, and a detection component. The turntable is rotatably mounted on the detection stage. The rotation drive is configured to drive the turntable to rotate. The positioning component is disposed on the turntable and is used to fix a mixing container on the turntable. The sample titration component is used to quantitatively supply sample solution to the mixing container on the turntable. The drug titration component is used to quantitatively supply drug solution to the mixing container on the turntable. The detection component includes a color detection sensor for identifying the color of the liquid in the mixing container. The sample titration component, the drug titration component, and the detection component are circumferentially spaced around the outer periphery of the turntable, and the mixing container on the turntable can be rotated sequentially to the sample titration component, the drug titration component, and the detection component.

[0006] Optionally, the positioning assembly includes a positioning plate, a bidirectional screw, and a first support plate. Two first support plates are spaced apart on the turntable. The two ends of the bidirectional screw are rotatably mounted on the two first support plates. The two positioning plates are movably connected to the bidirectional screw along its axial direction and can move in opposite directions when the bidirectional screw rotates.

[0007] Optionally, the positioning assembly further includes an anti-rotation rod and two movable plates. The two movable plates are respectively connected to the two positioning plates, and the movable plates are screwed to the bidirectional screw. The anti-rotation rod is rotatably connected to the turntable and is arranged parallel to the bidirectional screw. The movable plates are slidably connected to the anti-rotation rod.

[0008] Optionally, the positioning assembly further includes a first spring, and the movable plate is movably connected to the positioning plate along the axial direction of the bidirectional screw via the first spring.

[0009] Optionally, the positioning assembly further includes a locking rod, one end of the bidirectional screw is provided with a connecting plate, the locking rod is movably disposed on the connecting plate along the axial direction of the bidirectional screw, and the first support plate is provided with a locking hole corresponding to the position of the locking rod, the locking rod can be inserted into the locking hole.

[0010] Optionally, the positioning assembly further includes a second spring that provides elastic force to the locking rod, causing the locking rod to maintain its insertion into the keyhole.

[0011] Optionally, the sample titration assembly includes a sample container, a water pump, and a first solenoid valve. The inlet of the water pump is provided with a suction tube inserted into the sample container, and the outlet of the water pump is provided with a drain pipe located above the turntable. The first solenoid valve is disposed on the suction tube.

[0012] Optionally, the drug titration assembly includes a drug container and a second solenoid valve. The drug container is suspended above the turntable, and the second solenoid valve is installed at the outlet of the drug container.

[0013] Optionally, the titration detection device further includes a stirring assembly disposed above the turntable. The stirring assembly includes a stirring drive, a lifting drive, and a stirring shaft. The lifting drive is configured to drive the stirring shaft to move up and down, and the stirring drive is configured to drive the stirring shaft to rotate.

[0014] Optionally, the stirring shaft is provided with blades.

[0015] The beneficial effects of this invention are as follows: During the rotation of the turntable in the titration detection device of this invention, it can sequentially rotate past the sample solution titration component, the drug solution titration component, and the detection component. The sample solution titration component can quantitatively add sample solution to the mixing container, the drug solution titration component can quantitatively add drug solution to the mixing container, and the color detection sensor can identify the color of the liquid in the mixing container. The entire detection process is automated and is not affected by individual differences in operator operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the titration detection device in an embodiment of this utility model;

[0017] Figure 2 This is a side view of the titration detection device in an embodiment of this utility model;

[0018] Figure 3 yes Figure 2 Cross-sectional view;

[0019] Figure 4 yes Figure 3 Enlarged view of point D in the middle;

[0020] Figure 5 yes Figure 4 Enlarged view of point E in the middle;

[0021] Figure 6 yes Figure 2 Longitudinal section view;

[0022] Figure 7 This is a front view of the titration detection device in an embodiment of this utility model;

[0023] Figure 8 yes Figure 7 Longitudinal section view.

[0024] In the picture:

[0025] 1. Testing table; 11. Mixing container; 21. Disc; 22. Crossbar; 23. Placement seat; 24. First support plate; 25. Bidirectional screw; 26. Drive plate; 27. Moving plate; 28. Guide rod; 29. ​​Positioning plate; 30. Positioning groove; 31. First spring; 32. Guide groove; 41. Fixed box; 42. First rotating shaft; 43. Driven wheel; 44. Rotary drive component; 45. Second rotating shaft; 46. Drive wheel; 47. Synchronous belt; 51. Connecting plate; 52. Through hole; 53. Locking rod; 54. Contact plate 55. Locking hole; 56. Compression ring; 57. Second spring; 61. Second support plate; 62. Anti-rotation rod; 63. Anti-rotation plate; 71. Sample container; 72. Water pump; 73. Suction pipe; 74. Drain pipe; 75. First solenoid valve; 81. First bracket; 82. Medicine container; 83. Discharge pipe; 84. Second solenoid valve; 91. Second bracket; 92. Color detection sensor; 93. Lifting drive component; 94. Fixing frame; 95. Horizontal plate; 96. Stirring drive component; 97. Stirring shaft; 98. Blade. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0030] refer to Figures 1-8 As shown in the embodiment of this utility model, a titration detection device is proposed, including a detection stage 1, a turntable, a rotation drive 44, a positioning component, a sample titration component, a drug titration component, and a detection component. The turntable is rotatably mounted on the detection stage 1. The rotation drive 44 is configured to drive the turntable to rotate. The positioning component is mounted on the turntable and is used to fix the mixing container 11 on the turntable. The sample titration component, the drug titration component, and the detection component are arranged circumferentially on the turntable. The sample titration component is used to quantitatively supply sample liquid to the mixing container 11 on the turntable. The drug titration component is used to quantitatively supply drug liquid to the mixing container 11 on the turntable. The detection component includes a color detection sensor 92 for identifying the color of the liquid in the mixing container 11.

[0031] During the rotation of the turntable in the aforementioned titration detection device, it sequentially passes over the sample titration component, the pharmaceutical titration component, and the detection component. The sample titration component quantitatively adds sample solution to the mixing container 11, the pharmaceutical titration component quantitatively adds pharmaceutical solution to the mixing container 11, and the color detection sensor 92 identifies the color of the liquid in the mixing container 11. The entire detection process is unaffected by individual operator differences, resulting in high detection accuracy and efficiency. It is worth emphasizing that the positioning component on the turntable clamps and secures the mixing container 11 as it rotates, preventing it from tipping over.

[0032] refer to Figure 6 As shown, the turntable includes a disk 21, crossbars 22, and placement seats 23. The disk 21 is connected to a rotary drive 44, which is configured to drive the disk 21 to rotate. Multiple crossbars 22 are arranged in an array around the outer periphery of the disk 21 and extend radially along the disk 21. Multiple placement seats 23 are fixed one-to-one with the ends of the crossbars 22 away from the disk 21. Multiple positioning components are correspondingly disposed on the multiple placement seats 23. As the disk 21 rotates, the placement seats 23 can rotate sequentially to below the sample titration component, the drug titration component, and the detection component. The arrangement of multiple placement seats 23 enables the titration and detection of multiple sets of sample solutions, further improving the detection efficiency.

[0033] For example, the rotary drive 44 is a rotary motor. Specifically, the turntable also includes a fixed box 41, a drive wheel 46, a driven wheel 43, a timing belt 47, a first rotating shaft 42, and a second rotating shaft 45. One end of the first rotating shaft 42 extends out of the fixed box 41 and is fixedly connected to the disc 21 located above the fixed box 41, and the other end is rotatably connected to the bottom of the fixed box 41. One end of the second rotating shaft 45 is rotatably connected to the fixed box 41, and the other end is connected to the rotary motor. The drive wheel 46 and the driven wheel 43 are respectively sleeved on the second rotating shaft 45 and the first rotating shaft 42. The timing belt 47 is wound around the drive wheel 46 and the driven wheel 43 so that the drive wheel 46 and the driven wheel 43 rotate synchronously, thereby causing the disc 21 connected to the first rotating shaft 42 to rotate.

[0034] refer to Figure 4 As shown, the positioning assembly includes two positioning plates 29. The two positioning plates 29 can move closer to or further away from each other to clamp or release the mixing container 11. To improve clamping stability, each of the two positioning plates 29 has a positioning groove 30 on its opposite side. The positioning groove 30 is trapezoidal to meet the clamping and positioning of mixing containers 11 of different sizes.

[0035] Specifically, the positioning assembly also includes a bidirectional screw 25 and a first support plate 24. The two first support plates 24 are arranged parallel to each other on the placement seat 23. The two ends of the bidirectional screw 25 are respectively rotatably mounted on the two first support plates 24. The two positioning plates 29 are movably connected to the bidirectional screw 25 along the axial direction of the bidirectional screw 25. When the bidirectional screw 25 rotates, the two positioning plates 29 can move in opposite directions or in the opposite direction along the axial direction of the bidirectional screw 25, thereby clamping or releasing the mixing container 11.

[0036] To prevent the positioning plate 29 from rotating when the bidirectional screw 25 rotates, the positioning assembly also includes a second support plate 61 and an anti-rotation rod 62. The two second support plates 61 are arranged parallel to each other on the placement seat 23, and the spacing direction of the two second support plates 61 is the same as the spacing direction of the two first support plates 24. The anti-rotation rod 62 is rotatably connected to the placement seat 23 through the second support plate 61 and is parallel to the bidirectional screw 25. The ends of the two positioning plates 29 away from the first support plate 24 are connected to the anti-rotation rod 62 and can move relative to the anti-rotation rod 62 along the axial direction of the anti-rotation rod 62.

[0037] To prevent excessive clamping force from the positioning plate 29 from damaging the mixing container 11, the positioning assembly also includes a first spring 31 and a movable plate 27. One side of the movable plate 27 has a drive plate 26 screwed to the bidirectional screw 25, and the other side has an anti-rotation plate 63 slidably connected to the anti-rotation rod 62. The first spring 31 is positioned between the movable plate 27 and the positioning plate 29 to provide a buffering force to the positioning plate 29. Specifically, one of the positioning plate 29 and the movable plate 27 has a guide groove 32, and the other has a guide rod 28. The guide rod 28 is slidably disposed within the guide groove 32 to guide the movement of the positioning plate 29. The first spring 31 is located within the guide groove 32 and connected to the guide rod 28 and the bottom of the guide groove 32, causing the guide rod 28 to maintain a tendency to move outward from the guide groove 32.

[0038] Furthermore, the positioning assembly also includes a locking element for locking the bidirectional screw 25 and the first support plate 24 to prevent the bidirectional screw 25 from rotating when clamping the mixing container 11. In one embodiment, the locking element is a locking rod 53. One end of the bidirectional screw 25 passes through the first support plate 24 and is connected to a connecting plate 51. The connecting plate 51 has a through hole 52 for the locking rod 53 to pass through. The locking rod 53 passes through the through hole 52 and is movably disposed on the connecting plate 51 along the axial direction of the bidirectional screw 25. The first support plate 24 has a locking hole 55 corresponding to the position of the locking rod 53. The locking rod 53 can be inserted into the locking hole 55 to lock the bidirectional screw 25.

[0039] Specifically, to achieve automatic locking, the positioning assembly also includes a second spring 57, a contact plate 54, and a compression ring 56. The contact plate 54 is fixed to the end of the locking rod 53 away from the first support plate 24. The compression ring 56 is fixedly sleeved on the locking rod 53 and located between the connecting plate 51 and the first support plate 24. The second spring 57 is sleeved on the locking rod 53 and located between the compression ring 56 and the connecting plate 51, keeping the locking rod 53 inclined to be inserted into the lock hole 55. By pulling the contact plate 54, the locking rod 53 can be moved, causing the locking rod 53 to disengage from the lock hole 55. During the movement of the locking rod 53, the compression ring 56 compresses the second spring 57. When the contact plate 54 is released, the second spring 57 returns to its original position, allowing the locking rod 53 to re-insert into the lock hole 55, locking the bidirectional screw 25 and the first support plate 24.

[0040] Specifically, there are two locking rods 53, and correspondingly, there are also two locking holes 55, two second springs 57, and two compression rings 56. The two locking rods 53 are connected to the same contact plate 54.

[0041] refer to Figure 1 and Figure 8 As shown, the sample titration assembly includes a sample container 71 and a water pump 72. The sample container 71 is fixed to the detection stage 1. The inlet of the water pump 72 is connected to a suction pipe 73, which is inserted into the sample container 71. The outlet of the water pump 72 is connected to a drain pipe 74, with the end of the drain pipe 74 away from the water pump 72 located above the turntable. When the water pump 72 is working, it can draw the sample liquid from the sample container 71 through the suction pipe 73 and then discharge it into the mixing container 11 through the drain pipe 74. To achieve quantitative titration, the sample titration assembly also includes a first solenoid valve 75, which is installed on the suction pipe 73 to control the actual flow rate of the sample liquid.

[0042] For example, the water pump 72 is a peristaltic pump, which is not contaminated by the sample liquid and can provide very precise flow control, further improving the accuracy of the test results.

[0043] refer to Figures 6-8 As shown, the drug titration assembly includes a drug container 82, an outlet pipe 83, and a second solenoid valve 84. The drug container 82 is suspended above the turntable by a first support 81. The outlet pipe 83 is located at the outlet of the drug container 82. The second solenoid valve 84 is installed on the outlet pipe 83 to control the titration amount of the drug solution.

[0044] Specifically, in order to achieve automatic addition of sample solution and drug solution, the sample solution titration component and the drug solution titration component can each be equipped with a monitoring device. The monitoring device is used to monitor whether the mixing container has rotated to below the drain pipe 74 or the outlet pipe 83. The monitoring device can send a signal to the host computer. The host computer controls the opening and closing time of the first solenoid valve 75, the second solenoid valve and the water pump 72 through the signal sent by the monitoring device to achieve automatic titration detection.

[0045] refer to Figure 8 As shown, the color detection sensor 92 is fixed to the detection stage 1 via the second bracket 91, and the color detection sensor 92 is at the same height as the mixing container 11 fixed on the turntable, so as to obtain the color of the liquid in the mixing container 11 from the side. It is understood that the color detection sensor 92 is connected to a host computer, which stores the content of the components to be detected in the sample liquid corresponding to different colors. The operating principle and structure of the host computer can be referenced from the colorimeter, and will not be elaborated here.

[0046] To ensure thorough mixing of the sample solution and the drug solution, the titration detection device also includes a stirring assembly, which is also fixed on the second support 91. The stirring assembly includes a stirring drive 96, a lifting drive 93, and a stirring shaft 97. The lifting drive 93 is configured to drive the stirring shaft 97 to move up and down so that the stirring shaft 97 can extend into the mixing container 11. The stirring drive 96 is configured to drive the stirring shaft 97 to rotate so as to stir the liquid in the mixing container 11.

[0047] Specifically, the lifting drive component 93 is disposed on the top of the second bracket 91, the stirring drive component 96 is disposed at the output end of the lifting drive component 93, and the stirring shaft 97 is disposed at the output end of the stirring drive component 96. For example, the lifting drive component 93 is a cylinder, the stirring drive component 96 is a rotary motor, the output end of the cylinder is fixedly connected to a fixing frame 94, and the bottom of the fixing frame 94 is connected to a horizontal plate 95. The rotary motor, serving as the rotary drive component 44, is mounted on the horizontal plate 95. To increase stirring efficiency, blades 98 are also provided on the stirring shaft 97.

[0048] Understandably, in order to prevent cross-contamination of the test samples in different mixing containers caused by the stirring assembly, a placement seat 23 is provided between the two sets of test samples. The mixing container of the placement seat 23 is used to hold the cleaning fluid for cleaning the stirring shaft 97. The stirring assembly also includes a fan for drying the stirring shaft 97.

[0049] When the titration testing device is working, the mixing container 11 is placed on the placement seat 23, and then the contact plate 54 is pulled. The contact plate 54 drives the locking rod 53 to move, causing the locking rod 53 to disengage from the locking hole 55. At this time, the contact plate 54 can be rotated, which drives the bidirectional screw 25 to rotate. The rotation of the bidirectional screw 25 can drive the two drive plates 26 to move towards each other, which in turn can drive the moving plate 27 to move. The moving plate 27 can drive the positioning plate 29 to move. The two positioning plates 29 can contact the mixing container 11 and position and fix the mixing container 11. The elasticity of the first spring 31 can buffer and protect the mixing container 11 to prevent damage. At this time, the contact plate 54 can be released, and the second spring 57 resets, driving the locking rod 53 to reset, so that the locking rod 53 is inserted into the locking hole 55, which can lock the bidirectional screw 25, thereby improving the fixing effect of the mixing container 11. At this time, the rotation drive 44 is activated, which can drive the second rotating shaft 45 and the drive wheel 46 to rotate, and through the synchronous belt 4 7 can drive the driven wheel 43 and the first rotating shaft 42 to rotate, which in turn drives the disc 21 to rotate, which in turn drives the placement seat 23 and the mixing container 11 to rotate, rotating the mixing container 11 below the drain pipe 74. The rotary drive 44 is turned off, the water pump 72 is started, and the sample liquid is extracted through the suction pipe 73 and discharged into the mixing container 11 through the drain pipe 74. The rotary drive 44 is started, driving the mixing container 11 to continue rotating below the outlet pipe 83. The rotary drive 44 is turned off, and the main body of the second solenoid valve 84 can automatically titrate the medicine, controlling the number and volume of drops. The rotary drive 44 is started, driving the mixing container 11 to continue rotating below the stirring shaft 97. The rotary drive 44 is turned off, the cylinder is started, and the cylinder can push the stirring shaft 97 down into the mixing container 11. The stirring drive 96 is started, and the stirring drive 96 drives the stirring shaft 97 and the blades 98 to rotate, which can stir the liquid in the mixing container 11. Finally, the color of the liquid is determined by the color detection sensor 92.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A titration detection apparatus, characterized in that, include: Testing station (1); A turntable is rotatably mounted on the testing table (1); A rotary drive (44) is configured to drive the turntable to rotate; A positioning component is disposed on the turntable, the positioning component being used to fix the mixing container (11) on the turntable; A sample titration assembly is disposed on the detection stage (1), and the sample titration assembly is used to quantitatively supply sample solution to the mixing container (11) on the turntable; A drug titration assembly is provided on the detection stage (1). The drug titration assembly is used to quantitatively supply drug solution to the mixing container (11) on the turntable. A detection component is disposed on the detection station (1), the detection component including a color detection sensor (92) for identifying the color of the liquid in the mixing container (11); The sample titration component, the drug titration component, and the detection component are arranged circumferentially around the outer periphery of the turntable, and the mixing container (11) on the turntable can rotate sequentially to the sample titration component, the drug titration component, and the detection component.

2. The titration detection device according to claim 1, characterized in that, The positioning assembly includes a positioning plate (29), a bidirectional screw (25), and a first support plate (24). Two first support plates (24) are spaced apart on the turntable. The two ends of the bidirectional screw (25) are respectively rotatably mounted on the two first support plates (24). The two positioning plates (29) are movably connected to the bidirectional screw (25) along the axial direction of the bidirectional screw (25) and can move in opposite directions when the bidirectional screw (25) rotates.

3. The titration detection device according to claim 2, characterized in that, The positioning assembly further includes an anti-rotation rod (62) and two movable plates (27). The two movable plates (27) are respectively connected to the two positioning plates (29), and the movable plates (27) are screwed to the bidirectional screw (25). The anti-rotation rod (62) is rotatably connected to the turntable and is arranged parallel to the bidirectional screw (25). The movable plates (27) are slidably connected to the anti-rotation rod (62).

4. The titration detection device according to claim 3, characterized in that, The positioning assembly also includes a first spring (31), and the moving plate (27) is movably connected to the positioning plate (29) along the axial direction of the bidirectional screw (25) via the first spring (31).

5. The titration detection device according to claim 2, characterized in that, The positioning assembly also includes a locking rod (53). One end of the bidirectional screw (25) is provided with a connecting plate (51). The locking rod (53) is movably disposed on the connecting plate (51) along the axial direction of the bidirectional screw (25). The first support plate (24) has a locking hole (55) corresponding to the position of the locking rod (53). The locking rod (53) can be inserted into the locking hole (55).

6. The titration detection apparatus according to claim 5, characterized in that, The positioning assembly also includes a second spring (57) that provides elastic force to the locking rod (53) to keep the locking rod (53) inclined to be inserted into the lock hole (55).

7. The titration detection apparatus according to any one of claims 1-6, characterized in that, The sample titration assembly includes a sample container (71), a water pump (72), and a first solenoid valve (75). The inlet of the water pump (72) is provided with a suction pipe (73) inserted into the sample container (71), and the outlet of the water pump (72) is provided with a drain pipe (74) located above the turntable. The first solenoid valve (75) is located on the suction pipe (73).

8. The titration detection apparatus according to any one of claims 1-6, characterized in that, The drug titration assembly includes a drug container (82) and a second solenoid valve (84). The drug container (82) is suspended above the turntable, and the second solenoid valve (84) is installed at the outlet of the drug container (82).

9. The titration detection apparatus according to any one of claims 1-6, characterized in that, The titration detection device further includes a stirring assembly disposed above the turntable. The stirring assembly includes a stirring drive (96), a lifting drive (93), and a stirring shaft (97). The lifting drive (93) is configured to drive the stirring shaft (97) to move up and down, and the stirring drive (96) is configured to drive the stirring shaft (97) to rotate.

10. The titration detection apparatus according to claim 9, characterized in that, The stirring shaft (97) is provided with blades (98).

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