Titration constant volume device

Abstract

The invention provides a titration constant volume device. The titration constant volume device comprises an operation platform, a feeding device, a first carrying device, a liquid adding device, a second carrying device and an analysis device. The operation platform is provided with a first area, a second area and a third area which are sequentially arranged. The feeding device comprises a cup body feeding assembly, the cup body feeding assembly is arranged on the first area, the cup body feeding assembly is used for storing cup bodies, and liquid samples are contained in the cup bodies. The first carrying device is arranged on the first area and is used for carrying the sample bottles and the cup bodies to the second area and the like. The analysis device is arranged on the third area and is used for analyzing and detecting the solution in the cup body. The steps of sample transfer, split charging, titration and constant volume and the like do not need manual intervention, so that the personal safety of operators and the environmental safety of a laboratory are remarkably improved.

Description

Technical Field

[0001] This invention relates to the technical field of water treatment, and more specifically, to a titration and volume determination apparatus. Background Technology

[0002] In water treatment and chemical testing, many core operations often need to be performed manually by operators, especially sample transfer, pretreatment, reagent dispensing, titration and volume determination, where manual operation accounts for a very high percentage.

[0003] However, manual operation procedures are cumbersome, and when titrating and adjusting the volume of toxic, harmful, or corrosive samples, if the operation procedure is incorrect, the protection is inadequate, or the operation is misoperated due to fatigue, it is easy to cause leakage or splashing of sample reagents, which can lead to burns, poisoning, or even fire and explosion accidents, seriously threatening the personal safety of operators and the safety of the on-site environment. Summary of the Invention

[0004] To at least partially address the problems existing in the prior art, according to one aspect of the present invention, a titration and volume determination apparatus is provided.

[0005] The titration and volume determination apparatus includes an operating platform, a loading device, a first conveying device, a liquid addition device, a second conveying device, and an analytical device. The operating platform has a first region, a second region, and a third region arranged sequentially. The loading device includes a cup loading assembly located in the first region, used to hold a cup containing a liquid sample. The first conveying device is located in the first region and is used to move the cup to the second region. The liquid addition device includes a liquid addition assembly and a first moving assembly connected to the liquid addition assembly. The first moving assembly drives the liquid addition assembly to move and be positioned above the second region, and the liquid addition assembly is used to add the reaction solution to the cup containing the liquid sample. The second conveying device is located in the third region and is used to move the cup located in the second region to the third region. The analytical device is located in the third region and is used to analyze and detect the solution in the cup.

[0006] The titration and volume determination apparatus of this invention has an operating platform that can be sequentially configured with a first region, a second region, and a third region. A first transport device can transport the cup from the cup loading assembly to the second region. After the liquid addition device adds the reaction solution to the cup containing the liquid sample, the second transport device can transport the cup to the analytical device for analysis and detection. It is understood that the sample transfer, dispensing, titration, and volume determination steps described above all require no manual intervention, achieving fully automated operation of the core processes of water treatment and chemical detection. This effectively avoids safety risks such as operational errors and sample leakage that may occur during manual operation, significantly improving the personal safety of operators and the safety of the laboratory environment.

[0007] For example, the cup feeding assembly includes a hopper, an actuation component, and an opening / closing component. The hopper has a discharge port at its upper end, and multiple cups stacked within the hopper form a cup assembly. The actuation component acts on the cup assembly to move it towards or away from the discharge port. The opening / closing component includes at least two clamping members movably disposed above the discharge port of the hopper. The opening / closing component has a closed state and a clamping state. In the closed state, the clamping members block at least a portion of the discharge port, ensuring that each time the cup assembly moves towards the discharge port and abuts against the clamping members, the first cup in the cup assembly from top to bottom is at the same height. In the clamping state, the opening / closing component clamps the second cup in the cup assembly from top to bottom.

[0008] For example, there are multiple hoppers and opening / closing components, with the multiple hoppers arranged in columns, and each opening / closing component corresponding to at least two hoppers in the same column.

[0009] For example, the actuation component includes a first drive member and a transmission component connected by a transmission connection. The transmission component includes a drive plate having a support bottom extending into each hopper. The first drive member simultaneously drives the cup assembly in each hopper to move towards or away from the discharge port via the support bottom of the drive plate.

[0010] For example, the feeding device further includes a bottle feeding assembly disposed on a first area, the bottle feeding assembly being used to store a sample bottle containing the liquid sample, the sample bottle being transported to a second area via a first conveying device, and the liquid sample in the sample bottle being used to transfer to the cup.

[0011] For example, the titration and volume determination apparatus further includes a heating device disposed on the first region, located beside the cup body feeding assembly, and the heating device is used to heat the liquid sample in the sample vial.

[0012] For example, the titration and volume determination apparatus further includes a shaking device disposed on the first region, the shaking device being located between the bottle feeding assembly and the heating device, the shaking device being used to shake and mix the liquid sample in the sample bottle.

[0013] For example, the titration and volume determination apparatus further includes a first conveying device and a second conveying device, the first conveying device being located on a first region and a second region, and the second conveying device being located on a second region and a third region.

[0014] For example, the titration and volume determination device also includes a capping and dispensing device, which includes a conveying and capping component and a second motion component connected to the conveying and capping component. The second motion component drives the conveying and capping component to be movably positioned above the second region. The conveying and capping component is used to convey the sample bottle and the cup body, and to open or close the sample bottle.

[0015] For example, the cap-opening assembly includes multiple grippers and a second drive member. Each gripper has a gripping portion and a first support portion disposed at the bottom of the gripping portion, the multiple first support portions being used to cooperate in supporting the cap of the sample vial. The multiple grippers are respectively connected to the second drive member, the second drive member driving the multiple grippers to perform gripping and rotational movements in sequence. When the multiple gripping portions perform gripping movements, they cooperate in acting on the cap and perform rotational movements to open the cap.

[0016] For example, each gripper has a second support at the lower part of the first support portion, and multiple second supports cooperate to support the edge of the cup body.

[0017] For example, the titration and volume determination apparatus further includes a rinsing device disposed in the second region. The rinsing device includes a supply and drainage pipe assembly and a rinsing cup assembly. The supply and drainage pipe assembly includes a first tube body and a second tube body sleeved outside the first tube body, with a drainage channel formed between the first and second tube bodies that is isolated from the interior of the first tube body. The rinsing cup assembly includes a first storage cup and a second storage cup sleeved outside the first storage cup. A rinsing space is formed inside the first storage cup, and a drainage space communicating with the rinsing space is formed between the first and second storage cups. The first end of the first tube body is connected to the supply source, and the second end of the first tube body passes through the second and first storage cups in sequence and is connected to the rinsing space. The drainage channel is connected to the drainage space, and the rinsing liquid flows into the rinsing space through the first tube body and then flows to the drainage channel through the drainage space.

[0018] For example, the liquid dispensing device also includes a pipetting device connected to the second motion component, which is used to draw liquid samples from the sample bottle and drip them into the cup body under the action of the second motion component.

[0019] For example, the liquid dispensing device also includes a controller and a sensor disposed next to the pipette. The sensor and the second motion component are electrically connected to the controller. The controller acquires the liquid level information in the sample bottle sensed by the sensor and determines the depth to which the pipette extends into the sample bottle based on the liquid level information.

[0020] For example, the titration and volume determination apparatus further includes a weighing device, a through groove is formed on the second region, the weighing device passes through the through groove, and the weighing device is used to obtain the weight information of the liquid in the cup.

[0021] For example, the weighing device includes a weighing element and a waterproof cover disposed outside the weighing element, with the weighing end of the weighing element passing through the waterproof cover to support the cup body.

[0022] For example, the upper sidewall of the waterproof cover protrudes upward to enclose and form a water collection trough, and the height of the weighing end is greater than the height of the water collection trough.

[0023] For example, the weighing device also includes a wind shield, which is used to cover the waterproof cover, the weighing component and the cup body when the weighing component supports the cup body.

[0024] For example, the titration and volume determination device also includes a controller and an image acquisition device disposed next to the pipette. The image acquisition device and the pipette are electrically connected to the controller. The image acquisition device is used to acquire image information inside the cup. The controller acquires the image information and controls the volume of reaction solution dripped into the cup by the pipette.

[0025] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0026] The above and other objects, features, and advantages of the present invention will become more apparent from the more detailed description of the embodiments of the invention in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same parts or steps.

[0027] Figure 1 A perspective view of a titration and volume determination apparatus according to an exemplary embodiment of the present invention is shown;

[0028] Figure 2 A top view of a titration and volume determination apparatus according to an exemplary embodiment of the present invention is shown;

[0029] Figure 3A perspective view of a cup feeding assembly according to an exemplary embodiment of the present invention is shown;

[0030] Figure 4 A front view of a conveying and opening assembly according to an exemplary embodiment of the present invention is shown. Figure 1 (Transferring sample bottles);

[0031] Figure 5 A front view of a conveying and opening assembly according to an exemplary embodiment of the present invention is shown. Figure 2 (Moving the cup);

[0032] Figure 6 A perspective view of a rinsing apparatus according to an exemplary embodiment of the present invention is shown;

[0033] Figure 7 A cross-sectional view of a rinsing apparatus according to an exemplary embodiment of the present invention is shown;

[0034] Figure 8 A perspective view of a weighing device according to an exemplary embodiment of the present invention is shown.

[0035] The components indicated by the reference numerals in the figures are as follows:

[0036] 1. Operating platform; 11. First area; 12. Second area; 13. Third area; 2. Feeding device; 21. Bottle feeding assembly; 22. Cup feeding assembly; 221. Hopper; 2211. Discharge port; 222. Actuation assembly; 2221. First drive component; 2222. Transmission assembly; 2223. Drive plate; 2224. Support bottom; 223. Opening and closing assembly; 2231. Clamping component; 3. First conveying device; 4. Capping and dispensing device; 41. Conveying and capping assembly; 411. Gripping component; 4111. Gripping part; 4112. First support part; 4113. Second support part; 412. Second drive component; 4121. Gripper arm; 4122. Rotating block; 42. Plugging device; 43. Second motion assembly; 431. Third track; 4 32. Fourth track; 44. Sensing element; 5. Liquid dispensing device; 51. Liquid dispensing assembly; 52. First motion assembly; 521. Second track; 6. Second conveying device; 7. Analytical device; 8. Heating device; 9. Shaking device; 10. First conveying device; 101. First slide rail; 102. First housing; 14. Second conveying device; 141. Second slide rail; 142. Second housing; 15. Rinsing device; 151. Supply and drainage pipe assembly; 1511. First pipe body; 1512. Second pipe body; 1513. Drainage channel; 152. Rinsing cup assembly; 1521. First storage cup; 1522. Rinsing space; 1523. Second storage cup; 1524. Drainage space; 16. Weighing device; 161. Windproof cover; 17. Sample bottle; 18. Cup body. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of the present invention, and not all of the embodiments of the present invention. It should be understood that the present invention is not limited to the exemplary embodiments described herein. Based on the embodiments of the present invention described herein, all other embodiments obtained by those skilled in the art without inventive effort should fall within the protection scope of the present invention.

[0038] In the following description, numerous details are provided to enable a thorough understanding of the invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the invention, and that the invention can be practiced without one or more of these details. Furthermore, to avoid obscuring the invention, some technical features well-known in the art have not been described in detail.

[0039] To fully understand the embodiments of the present invention, detailed structures will be presented in the following description. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below; however, in addition to these detailed descriptions, the present invention may have other embodiments.

[0040] One embodiment of the present invention provides a titration and volume determination device that automates the sample transfer, dispensing, and titration processes without human intervention. The following will describe in detail a titration and volume determination device according to an embodiment of the present invention, with reference to the accompanying drawings.

[0041] like Figure 1 and Figure 2As shown, the titration and volume determination apparatus includes an operating platform 1, a loading device 2, a first conveying device 3, a liquid addition device 5, a second conveying device 6, and an analytical device 7. The operating platform 1 has a first region 11, a second region 12, and a third region 13 arranged sequentially. The loading device 2 includes a cup loading assembly 22, which is disposed on the first region 11 and is used to store a cup 18 containing a liquid sample. The first conveying device 3 is disposed on the first region 11 and is used to convey the cup 18 to the second region 12. The liquid addition device 5 includes a liquid addition assembly 51 and a first motion assembly 52 connected to the liquid addition assembly 51. The first motion assembly 52 drives the liquid addition assembly 51 to be movably positioned above the second region 12, and the liquid addition assembly 51 is used to add a reaction solution to the cup 18 containing the liquid sample. The second transport device 6 is disposed on the third region 13, and is used to transport the cup 18 located on the second region 12 to the third region 13. The analysis device 7 is disposed on the third region 13, and is used to analyze and detect the solution in the cup 18.

[0042] The first region 11, the second region 12, and the third region 13 mentioned above can each have different functional positioning. Specifically, the first region 11 can be used for sample loading, the second region 12 can be used for sample titration and volume determination, and the third region 13 can be used for analysis and detection of the titrated and determined sample.

[0043] The aforementioned cup feeding assembly 22 can hold multiple cups 18, which can be used to hold liquid samples for analysis and testing. It is understood that cups 18 can be added to the cup feeding assembly 22 by manual or mechanical feeding.

[0044] The first transport device 3 and the second transport device 6 mentioned above can be used for transporting and transferring the cup body 18. Specifically, the first transport device 3 and the second transport device 6 can be a six-axis robot or a device with a gripper at the end, etc. This application does not make any specific limitation in this regard.

[0045] like Figure 1As shown, the first motion component 52 may include a first track and a second track 521 movably connected to the first track. The first track may be arranged along the X-axis in the Cartesian coordinate system, and the second track 521 may be arranged along the Y-axis in the Cartesian coordinate system. The liquid addition component 51 may be movably connected to the second track 521 and reciprocate along the second track 521. The second track 521 may drive the heating component to reciprocate along the first track. This arrangement allows the liquid addition component 51 to move flexibly in the horizontal plane, thereby enabling the liquid addition device 5 to move accurately to the cup 18 containing the liquid sample and add the reaction solution (i.e., titrant) into the cup 18, so that the reaction solution can react with the liquid sample, thereby completing the titration and volume determination of the liquid sample.

[0046] The second transport device 6 can place the cup 18 into the analysis device 7, and the analysis device 7 can determine the content of the liquid sample based on the concentration of the reaction solution and the volume consumed.

[0047] Each of the aforementioned devices, such as the feeding device 2, the liquid adding device 5, and the analysis device 7, can be an independent module set in the corresponding area. Based on actual testing needs, the required devices can be flexibly selected (for example, only the feeding device 2 and the liquid adding device 5 can be selected to complete a simple liquid adding operation). There is no need to make major modifications to the overall structure of the titration and volume determination device, which reduces the customization cost of the titration and volume determination device and also expands the applicable scenarios of the titration and volume determination device.

[0048] The titration and volume determination apparatus of the present invention has an operating platform 1 that can be sequentially configured with a first region 11, a second region 12, and a third region 13. A first transport device 3 can transport the cup 18 from the cup loading assembly 22 to the second region 12. After the liquid addition device 5 adds the reaction solution to the cup 18 containing the liquid sample, the second transport device 6 can transport the cup 18 to the analytical device 7 for analysis and detection. It is understood that the sample transfer, dispensing, titration, and volume determination steps described above all require no manual intervention, achieving fully automated operation of the core processes of water treatment and chemical detection. This effectively avoids safety risks such as operational errors and sample leakage that may occur during manual operation, significantly improving the personal safety of operators and the safety of the laboratory environment.

[0049] In some embodiments, such as Figure 3As shown, the cup feeding assembly 22 includes a hopper 221, an actuation assembly 222, and an opening / closing assembly 223. The hopper 221 has a discharge port 2211 at its upper end. Multiple cups 18 are stacked within the hopper 221, forming a cup assembly. The actuation assembly 222 acts on the cup assembly to move it closer to or further away from the discharge port 2211. The opening and closing assembly 223 includes at least two clamping members 2231, which are movably disposed above the discharge port 2211 of the hopper 221. The opening and closing assembly 223 has a closed state and a clamping state. In the closed state, the clamping members 2231 block at least part of the discharge port 2211 so that when the cup assembly moves towards the discharge port 2211 and abuts against the clamping members 2231, the first cup 18 in the cup assembly from top to bottom is at the same height. In the clamping state, the opening and closing assembly 223 clamps the second cup 18 in the cup assembly from top to bottom.

[0050] The aforementioned hopper 221 may have a receiving cavity formed in a vertical direction, and the cups 18 may be stacked sequentially in the receiving cavity through the discharge port 2211 above the hopper 221.

[0051] The aforementioned actuation component 222 can act on the cup assembly to drive the cup assembly to move vertically. Specifically, when the cup assembly is placed in the hopper 221 for replenishment, the actuation component 222 can drive the cup assembly to move away from the discharge port 2211, thereby allowing the entire cup assembly to enter the receiving cavity of the hopper 221. When a feeding operation is required, the actuation component 222 can drive the entire cup assembly to move closer to the discharge port 2211, so that the cups 18 in the cup assembly pass through the discharge port 2211 sequentially from top to bottom and are exposed in the receiving cavity of the hopper 221, allowing the first conveying device 3 to sequentially grasp the cups 18.

[0052] The opening and closing assembly 223 described above may have at least two clamping members 2231. Taking two clamping members 2231 as an example, the two clamping members 2231 may be disposed on opposite sides of the discharge port 2211. The two clamping members 2231 may move in opposite directions and form at least two states. Specifically, when the two clamping members 2231 move towards each other a first distance, they may block at least part of the discharge port 2211 to be in a closed state. When the two clamping members 2231 move towards each other a second distance, they may abut against the outer wall of the cup body 18 to be in a clamping state. The first distance may be greater than the second distance.

[0053] In the above embodiment, at least two clamping members 2231 of the opening and closing component 223 can be movably disposed above the discharge port 2211 of the hopper 221. When the opening and closing component 223 is in the closed state, the actuating component 222 can simultaneously drive the cup group in the hopper 221 to move synchronously towards the discharge port 2211, so that the first cup 18 in the cup group from top to bottom can abut against the clamping member 2231. In this way, the first cup 18 in the cup group can be placed at the same height position by pressing. When the first conveying device 3 is clamping the cup 18 in the hopper 221 at the discharge port 2211, the gripping reference of the first conveying device 3 can match the actual height of the cup 18, thereby avoiding the problem of inaccurate positioning and gripping offset caused by the fluctuation of the cup 18 fitting gap. Furthermore, when the first conveying device 3 grips the cup 18, the opening and closing component 223 can switch from the closed state to the clamping state, precisely clamping the second cup 18 from top to bottom in the cup assembly. This creates a rigid isolation between the first cup 18 and the stacked cups 18 below, effectively preventing the "adhesion" problem caused by the upper and lower cups 18 being too tightly fitted, vacuum adsorption, or surface tension. At this time, the lower cup 18 is firmly fixed, and when the first conveying device 3 grips the first cup 18, the lower cup 18 will not lift or shift synchronously, thus ensuring that only a single cup 18 is gripped each time, effectively improving the success rate and feeding efficiency of the cup feeding component 22.

[0054] In some embodiments, such as Figure 3 As shown, there are multiple hoppers 221 and opening / closing components 223. The multiple hoppers 221 are arranged in columns, and each opening / closing component 223 is set to correspond to at least two hoppers 221 in the same column.

[0055] For example, with Figure 3 For example, the number of hoppers 221 can be four, and the four hoppers 221 can be arranged in two rows. The number of opening and closing components 223 can be two, and each opening and closing component 223 can be set to correspond to two hoppers 221. In this way, the synchronous opening and closing control of at least two hoppers 221 can be achieved by using one opening and closing component 223.

[0056] In the above embodiments, the cup feeding assembly 22 can have multiple hoppers 221, which can hold a sufficient number of cups 18, extending the continuous feeding time, reducing the frequency of manual replenishment, and improving the feeding efficiency of the cup feeding assembly 22. Furthermore, each opening / closing component 223 can correspond to at least two hoppers 221 in the same row, thus eliminating the need to set up a separate opening / closing component 223 for each hopper 221. By reducing the number of opening / closing components 223, the manufacturing cost, assembly time cost, and subsequent maintenance cost of the cup feeding assembly 22 can be directly reduced.

[0057] In some embodiments, such as Figure 3 As shown, the actuation assembly 222 includes a first drive member 2221 and a transmission assembly 2222 connected by transmission. The transmission assembly 2222 includes a drive plate 2223. The drive plate 2223 has a bottom support 2224 extending into each hopper 221. The first drive member 2221 drives the cup assembly in each hopper 221 to move towards or away from the discharge port 2211 through the bottom support 2224 of the drive plate 2223.

[0058] The number of support bottoms 2224 on the drive plate 2223 can correspond to the number of hoppers 221. Taking four hoppers 221 as an example, the shape of the drive plate 2223 can be H-shaped. The four apex corners of the H-shaped drive plate 2223 can correspond to the four support bottoms 2224 of the drive plate 2223, and the cup assembly in each hopper 221 can be placed on the corresponding support bottom 2224.

[0059] The aforementioned first driving component 2221 can be disposed below the driving plate 2223. The driving plate 2223 can be connected to the driving end of the first driving component 2221. The driving plate 2223 can reciprocate in the direction of approaching or moving away from the discharge port 2211 of the hopper 221 under the drive of the first driving component 2221.

[0060] The first driving component 2221 described above can be any type of driving component known in the art or that may appear in the future, including but not limited to motor driving components, cylinder driving components or electric cylinder driving components, and this application does not make any specific limitation in this regard.

[0061] In the above embodiments, a single first driving component 2221 can drive multiple cup groups in the hopper 221 to move synchronously via the driving plate 2223. This reduces the number of first driving components 2221 required, significantly simplifies the structure of the cup feeding assembly 22, and reduces the difficulty and cost of manufacturing and maintaining the cup feeding assembly 22.

[0062] In some embodiments, such as Figure 1 and Figure 2 As shown, the feeding device 2 also includes a bottle feeding assembly 21 disposed on the first area 11. The bottle feeding assembly 21 is used to store the sample bottle 17 containing the liquid sample mentioned above. The sample bottle 17 is transported to the second area 12 via the first conveying device 3. The liquid sample in the sample bottle 17 is used to transfer to the cup body 18.

[0063] The aforementioned bottle feeding assembly 21 and cup feeding assembly 22 can be spaced apart on the first region 11. The bottle feeding assembly 21 can hold multiple sample bottles 17, and the sample bottles 17 can contain liquid samples to be titrated. It is understood that sample bottles 17 can be added to the bottle feeding assembly 21 by manual feeding or mechanical feeding.

[0064] In the above embodiments, the bottle feeding assembly 21 can be used to store the sample bottles 17, thereby achieving centralized and orderly storage of the sample bottles 17 and facilitating their management and retrieval. The first conveying device 3 can transport the sample bottles 17 to the second area 12, thus eliminating the need for operators to directly contact the sample bottles and the liquid samples inside. This not only completely avoids safety hazards caused by manual handling but also prevents potential contamination of the liquid samples by operators, effectively ensuring the purity of the liquid samples and the accuracy of subsequent testing results.

[0065] In some embodiments, such as Figure 1 and Figure 2 As shown, the titration and volume determination apparatus also includes a heating device 8 disposed on the first region 11. The heating device 8 is located beside the cup feeding assembly 22 and is used to heat the solid sample in the sample vial 17.

[0066] When the liquid sample in the sample vial 17 solidifies upon contact with cold, the first transport device 3 can place the sample vial 17 into the heating device 8. The heating device 8 can heat the sample vial 17 through thermal radiation, thereby melting the solid sample in the sample vial 17 into a liquid sample.

[0067] In the above embodiments, the heating device 8 can maintain the liquid state of the sample in the sample vial 17, thereby ensuring the smoothness and stability of the subsequent sample aspiration operation in the sample vial 17, avoiding pipeline blockage caused by solid or semi-solid samples, reducing the maintenance frequency of the titration and volume determination device, and also preventing sampling volume deviation caused by sample agglomeration and stratification, providing a reliable sample basis for subsequent analysis and detection.

[0068] In some embodiments, such as Figure 1 and Figure 2 As shown, the titration and volume determination device also includes a shaking device 9 disposed on the first region 11. The shaking device 9 is located between the bottle feeding assembly 21 and the heating device 8. The shaking device 9 is used to shake and mix the liquid sample in the sample bottle 17.

[0069] The first conveying device 3 can place the sample bottle 17 in the bottle feeding assembly 21 into the shaking device 9, or it can place the sample bottle 17 heated by the heating device 8 into the shaking device 9, so that the shaking device 9 can drive the sample bottle 17 to perform linear reciprocating motion or circular rotation in the horizontal plane.

[0070] In the above embodiments, the oscillation action of the oscillating device 9 can make the liquid sample in the sample bottle 17 fully mixed, avoiding the situation of liquid sample stratification and uneven concentration, thereby ensuring the accuracy of subsequent titration and volume determination operations and analysis and detection operations.

[0071] In some embodiments, such as Figure 1 and Figure 2 As shown, the titration and volume determination apparatus also includes a first conveying device 10 and a second conveying device 14. The first conveying device 10 is located on the first region 11 and the second region 12, and the second conveying device 14 is located on the second region 12 and the third region 13.

[0072] like Figure 2 As shown, the aforementioned first transmission device may include a first slide rail 101 and a first housing 102 movably disposed on the first slide rail 101. The first housing 102 can reciprocate along the first slide rail 101, and the first slide rail 101 can connect the first region 11 and the second region 12. Thus, the first conveying device 3 can place the sample vial 17 and the cup 18 located in the first region 11 into the first housing 102. After loading is completed, the first housing 102 can move along the first slide rail 101 to the second region 12, thereby achieving stable transfer of the sample vial 17 and the cup 18 between the first region 11 and the second region 12. Similarly, as... Figure 2 As shown, the second transmission device may include a second slide rail 141 and a second housing 142 movably disposed on the second slide rail 141. The second housing 142 can reciprocate along the second slide rail 141, and the second slide rail 141 can connect the second region 12 and the third region 13. In this way, the second transport device 6 can place the cup 18 containing liquid sample and reaction solution located in the second region 12 into the second housing 142. After loading is completed, the second housing 142 can move along the second slide rail 141 to the third region 13, thereby smoothly transferring the cup 18 to the second transport device 6, so that the second transport device 6 can place the cup 18 into the analytical device 7.

[0073] In the above embodiments, the first conveying device 10 and the second conveying device 14 can connect the first region 11, the second region 12 and the third region 13 in an orderly manner to build a standardized and automated transfer link between the sample bottle 17 and the cup 18. This realizes the step-by-step transfer of the sample bottle 17 and the cup 18 between the three regions, connecting the upstream and downstream processes such as sample loading, sample titration and volume determination and analysis and detection. While simplifying the overall layout of the titration and volume determination device, it also improves the operating efficiency of the titration and volume determination device.

[0074] In some embodiments, such as Figure 1 and Figure 2As shown, the titration and volume determination device also includes a capping and dispensing device 4. The capping and dispensing device 4 includes a conveying and capping assembly 41 and a second motion assembly 43 connected to the conveying and capping assembly 41. The second motion assembly 43 drives the conveying and capping assembly 41 to be movably positioned above the second region 12. The conveying and capping assembly 41 is used to convey the sample bottle 17 and the cup body 18, and to open or close the sample bottle 17.

[0075] like Figure 1 As shown, the second motion component 43 may include a third track 431 and a fourth track 432 movably connected to the third track 431. The third track 431 may be arranged along the X-axis in a Cartesian coordinate system, and the fourth track 432 may be arranged along the Y-axis in a Cartesian coordinate system. The conveying and opening component 41 may be movably connected to the fourth track 432 and reciprocate along the fourth track 432. The fourth track 432 may drive the conveying and opening component 41 to reciprocate along the third track 431. This arrangement allows the conveying and opening component 41 to move flexibly in the horizontal plane, thereby enabling the conveying and opening component 41 to transport the sample bottle 17 or the cup 18 to a designated position. It is understood that the height of the third track 431 and the fourth track 432 on the horizontal plane may be greater than the height of the first track and the second track 521 on the horizontal plane, thereby avoiding interference between the conveying and opening component 41 and the liquid dispensing device 5 during movement.

[0076] The aforementioned conveying and opening assembly 41 can clamp the cap of the sample bottle 17 or the mouth of the cup 18, thereby conveying the sample bottle 17 or the cup 18 to a designated position. The conveying and opening assembly 41 can also rotate to open or close the cap after clamping the cap of the sample bottle 17.

[0077] Specifically, the titration and volume determination apparatus also includes a clamping device adapted to the transfer and opening assembly 41. The transfer and opening assembly 41 can transfer the sample vial 17 to the clamping device, which then clamps and secures the sample vial 17. In this way, when the transfer and opening assembly 41 opens the sample vial 17 by rotating the cap, it can effectively prevent the sample vial 17 from rotating freely with the transfer and opening assembly 41, ensuring that the opening operation is carried out stably.

[0078] In the above embodiments, the conveying and opening assembly 41 integrates the functions of conveying the sample bottle 17 and the cup body 18, opening and closing the sample bottle 17, which not only simplifies the structure of the conveying and opening assembly 41 and reduces the manufacturing difficulty and cost of the conveying and opening assembly 41, but also saves the space required for the conveying and opening assembly 41 and ensures the miniaturization of the opening and dispensing device 4.

[0079] In some embodiments, such as Figure 4 and Figure 5As shown, the conveying and opening assembly 41 includes multiple gripping members 411 and a second driving member 412. Each gripping member 411 has a gripping portion 4111 and a first supporting portion 4112 disposed at the bottom of the gripping portion 4111. The multiple first supporting portions 4112 are used to cooperate in supporting the cap of the sample vial 17. The multiple gripping members 411 are respectively connected to the second driving member 412. The second driving member 412 drives the multiple gripping members 411 to perform gripping and rotating movements in sequence. When the multiple gripping portions 4111 perform gripping movements, they cooperate in acting on the cap and perform rotating movements to open the cap.

[0080] The aforementioned second driving component 412 can specifically be a rotary gripper cylinder. When there are three gripping components 411, each of the three gripping components 411 can be connected to one of the three gripper arms 4121 of the cylinder. The three gripper arms 4121 of the cylinder can drive the gripping components 411 closer together to grip the cap of the sample vial 17, while the first support portion 4112 at the bottom of the gripping portion 4111 can support the cap. Conversely, the three gripper arms 4121 of the cylinder can drive the gripping components 411 further apart to release the cap of the sample vial 17. The three gripper arms 4121 can be connected to the rotating block 4122 of the cylinder, which can drive the entire gripper assembly and the clamped cap to rotate together, realizing the rotational opening or reverse closing of the cap.

[0081] The shape of the first support portion 4112 can be L-shaped. The vertical part of the L-shaped first support portion 4112 can be connected to the gripping portion 4111, and the horizontal part can be used to support the cap of the sample bottle 17.

[0082] by Figure 4 For example, the number of gripping parts 411 can be three. The three gripping parts 411 enclose a gripping space that fits the cover. The gripping part 4111 can stably clamp the cover, and the first support part 4112 at the bottom of the gripping part 4111 can help lift the cover, preventing the cover from falling off or shifting during the opening process, and ensuring that the opening action is accurate and efficient.

[0083] In the above embodiments, the integrated operation of gripping the bottle and opening / closing the cap can be achieved without the need for additional mechanisms, significantly improving the efficiency of opening the sample bottle 17. Furthermore, multiple gripping parts 4111 can work together on the cap to form a stable clamping force, avoiding uneven force distribution or cap displacement caused by a single gripping structure. Additionally, multiple first supporting parts 4112 can work together to lift the cap, preventing the cap from falling off or shifting during the opening process.

[0084] In some embodiments, such as Figure 4 and Figure 5As shown, each gripper 411 has a second support 4113 at the lower part of the first support 4112, and the multiple second support 4113 cooperate to support the edge of the cup body 18.

[0085] The second driving member 412 can drive multiple gripping members 411 to move away from each other, so that the multiple gripping members 411 can surround and form a gripping space that fits the cup opening. Then, the multiple gripping members 411 can move closer to each other under the drive of the second driving member 412, so that the multiple second supporting parts 4113 can support the lower edge of the cup opening while applying a certain clamping force to the cup body 18.

[0086] The shape of the second support portion 4113 can be L-shaped. The vertical part of the L-shaped second support portion 4113 can be connected to the first support portion 4112, and the horizontal part can be used to support the edge of the cup mouth.

[0087] In the above embodiments, the conveying and opening assembly 41 is compatible with the conveying functions of the sample bottle 17 and the cup body 18, greatly improving the versatility of the conveying and opening assembly 41. When the second support portion 4113 on the multiple gripping members 411 cooperates to support the edge of the cup body 18, a stable support structure can be formed, preventing the cup body 18 from tilting or falling off during the conveying process, effectively ensuring the safety and stability of the conveying process.

[0088] In some embodiments, such as Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the titration and volume determination apparatus also includes a rinsing device 15 disposed on the second region 12. The rinsing device 15 includes a supply and drainage pipe assembly 151 and a rinsing cup assembly 152. The supply and drainage pipe assembly 151 includes a first tube body 1511 and a second tube body 1512 sleeved outside the first tube body 1511. A drainage channel 1513 is formed between the first tube body 1511 and the second tube body 1512, which is isolated from the interior of the first tube body 1511. The rinsing cup assembly 152 includes a first liquid storage cup 1521 and a second liquid storage cup 1523 sleeved outside the first liquid storage cup 1521. A rinsing space 1522 is formed inside the first liquid storage cup 1521. A drain space 1524 communicating with the rinsing space 1522 is formed between the first liquid storage cup 1521 and the second liquid storage cup 1523. The first end of the first tube 1511 is connected to the liquid supply source. The second end of the first tube 1511 passes through the second liquid storage cup 1523 and the first liquid storage cup 1521 in sequence and is connected to the rinsing space 1522. The drain channel 1513 is connected to the drain space 1524. After the rinsing liquid flows into the rinsing space 1522 through the first tube 1511, it flows to the drain channel 1513 through the drain space 1524.

[0089] The pipetting device 42 (described in detail below) can be connected to a pipette tip and used to aspirate liquid samples from sample vials 17. The liquid addition device 5 can also be connected to a pipette tip and used to add reaction solution into cup 18. When the liquid sample or reaction solution is corrosive, the pipette tip can be rinsed using the rinsing device 15 to remove any residual corrosive liquid from its surface.

[0090] The radial dimension of the second tube 1512 can be larger than the radial dimension of the first tube 1511. Thus, when the second tube 1512 is fitted onto the first tube 1511, the aforementioned drainage channel 1513 can be formed between the outer wall of the first tube 1511 and the inner wall of the second tube 1512. Similarly, the cross-sectional area of ​​the second cup 18 can be larger than the cross-sectional area of ​​the first cup 18. Thus, when the second cup 18 is fitted onto the first cup 18, the aforementioned drainage space 1524 can be formed between the outer wall of the first cup 18 and the inner wall of the second cup 18.

[0091] The aforementioned first tube 1511 can be used to deliver rinsing fluid to the rinsing space 1522, and the drain channel 1513 can be used to discharge the waste fluid after rinsing. In this way, the interior of the first tube 1511 can be isolated from the drain channel 1513, thereby preventing the waste fluid from contaminating the rinsing fluid in the first tube 1511, and also preventing the waste fluid from flowing back to the liquid supply source through the first tube 1511, thereby contaminating the liquid supply source.

[0092] The first tube 1511 and the second tube 1512 mentioned above can both be made of corrosion-resistant materials. When the pipette tip with residual corrosive liquid is rinsed by the rinsing mechanism, the corrosive liquid can be prevented from causing corrosion, aging or damage to the first tube 1511 and the second tube 1512, effectively extending the service life of the supply and drainage tube assembly 151 and ensuring the reliability of the rinsing operation.

[0093] The rinsing solution in the supply source flows into the rinsing space 1522 within the first cup body 18 through the first tube 1511. After rinsing the pipette tip within the rinsing space 1522, the waste liquid flows into the drain space 1524, and then into the waste liquid collection device through the drain channel 1513 connected to the drain space 1524. It is understood that the rinsing solution can form a unidirectional flow within the rinsing mechanism, effectively improving the rinsing effect.

[0094] In the above embodiment, the rinsing solution can flow into the rinsing space 1522 of the first cup 18 through the first tube 1511 to rinse the pipette tip within the rinsing space 1522. The waste liquid after rinsing can flow into the drain space 1524 and then be discharged through the drain channel 1513 connected to the drain space 1524. Thus, when using a pipette tip to transfer, inject, or titrate highly corrosive liquid samples or reaction solutions such as strong acids or strong alkalis, the rinsing mechanism can rinse the discarded pipette tip after use, thereby neutralizing any residual chemical reagents on the pipette tip, preventing secondary contamination, and effectively improving the safety of operators and the operating environment.

[0095] In some embodiments, such as Figure 1 and Figure 2 As shown, the liquid dispensing device 4 also includes a pipetting device 42 connected to the second motion component 43. The pipetting device 42 is used to extract the liquid sample in the sample bottle 17 and drop it into the cup body 18 under the drive of the second motion component 43.

[0096] The aforementioned pipetting device 42 can be disposed beside the conveying and opening assembly 41. After the conveying and opening assembly 41 opens the cap of the sample bottle 17, the pipetting device 42 can move to the top of the pipette tip and connect with the pipette tip under the drive of the second motion assembly 43. Then, the pipette tip can be used to pick up the liquid sample in the sample bottle 17 and drop it into the cup body 18.

[0097] In the above embodiments, the pipetting device 42 can be used to extract liquid samples from the sample bottle 17 and drop them into the cup body 18, thereby completing the liquid separation operation of the liquid sample in the sample bottle 17. This effectively avoids the problems of large operation errors and poor consistency of liquid separation volume caused by manual operation. At the same time, it eliminates cross-contamination and liquid sample evaporation loss caused by operators coming into contact with liquid samples. It can also reduce the risk of fatigue errors caused by long-term repetitive work and further improve the standardization and stability of titration and volume determination.

[0098] In some embodiments, such as Figure 1 As shown, the liquid dispensing device 4 also includes a controller (not shown) and a sensor 44 disposed next to the pipetting device 42. The sensor 44 and the second motion component 43 are electrically connected to the controller. The controller acquires the liquid level height information in the sample bottle 17 sensed by the sensor 44 and determines the depth of the pipetting device 42 inserted into the sample bottle 17 based on the liquid level height information.

[0099] Before the pipette 42 draws liquid sample from the sample vial 17, the sensor 44 can determine the distance between the pipette 42 and the liquid sample in the sample vial 17. The controller can determine the depth of the pipette 42 into the sample vial 17 based on this distance, thereby ensuring the accuracy of the movement of the pipette 42 and thus ensuring the success rate of liquid sample aspiration.

[0100] The aforementioned sensing element 44 can be sensed by laser ranging or ultrasonic ranging. This application does not specifically limit the type and sensing method of the sensing element 44. Any device that can measure the liquid level in the sample bottle 17 is acceptable.

[0101] It should be noted that the controller can be built using electronic components such as timers, comparators, registers, and digital logic circuits, or implemented using processor chips such as microcontrollers, microprocessors, programmable logic controllers (PLCs), digital signal processors (DSPs), field-programmable gate arrays (FPGAs), programmable logic arrays (PLAs), and application-specific integrated circuits (ASICs) and their peripheral circuits.

[0102] In the above embodiments, the sensing element 44 can pre-determine the distance between the pipette 42 and the liquid sample, thereby enabling the controller to accurately control the movement distance of the pipette 42. On the one hand, this avoids situations where the pipette 42 fails to reach the liquid sample or is immersed too deeply in the liquid sample due to improper insertion depth into the sample vial 17, significantly improving the success rate and stability of liquid sample aspiration. On the other hand, it eliminates the need for manual prediction or adjustment of the movement depth of the pipette 42, thus adapting to sample vials 17 with different liquid levels, effectively improving the versatility and automation adaptability of the pipette 42.

[0103] In some embodiments, such as Figure 1 , Figure 2 and Figure 8 As shown, the titration and volume determination apparatus also includes a weighing device 16. A through groove is formed on the second region 12, and the weighing device 16 passes through the through groove. The weighing device 16 is used to obtain the weight information of the liquid in the cup 18.

[0104] In the above embodiment, the weighing device 16 can be independently fixed to the ground after passing through the through groove, forming an installation layout that is completely separated from other equipment in the titration and volume determination device. This fundamentally eliminates direct physical contact between the weighing device 16 and other equipment in the titration and volume determination device, thus preventing vibrations generated during the operation of other equipment from being transmitted to the weighing device 16, effectively ensuring the weighing accuracy of the weighing device 16.

[0105] In some embodiments, the weighing device 16 includes a weighing element (not shown) and a waterproof cover (not shown) covering the outside of the weighing element, with the weighing end of the weighing element passing through the waterproof cover to support the cup body 18.

[0106] The aforementioned weighing device is a precision instrument used to measure the weight of the cup 18. Its measurement accuracy directly affects the reliability of the analytical results from the analytical device 7. To protect the weighing device, a waterproof cover can be fitted over its exterior. The waterproof cover forms an effective protective barrier, preventing liquid from directly contacting the surface of the weighing device when liquid overflows from the cup 18. This avoids liquid seeping into the internal precision components of the weighing device, which could lead to corrosion, short circuits, or decreased sensitivity. Understandably, the waterproof cover also prevents dust, impurities, and other contaminants from entering the weighing device and affecting its weighing results.

[0107] In the above embodiments, a waterproof cover can be provided on the outside of the weighing component. The waterproof cover can prevent the liquid from directly contacting the surface of the weighing component and seeping into the interior of the weighing component when the liquid overflows from the cup body 18. This effectively ensures the service life of the weighing component and reduces the maintenance and replacement costs of the titration and volume determination device caused by damage to the weighing component.

[0108] In some embodiments, the upper sidewall of the waterproof cover protrudes upward to enclose and form a water collection trough (not shown in the figure), and the height of the weighing end is greater than the height of the water collection trough.

[0109] The upper sidewall of the aforementioned waterproof cover can protrude upwards around the circumference of the weighing end, thereby enclosing and forming the aforementioned water collection tank. When liquid overflows from the cup body 18, the liquid can accumulate in the water collection tank, thus preventing it from dripping down the sidewall of the water collection tank.

[0110] The height of the weighing end can be greater than the height of the water collection tank. This can effectively prevent liquid in the water collection tank from seeping into the gap between the weighing end and the waterproof cover, fundamentally preventing the liquid from coming into contact with the weighing component, and further improving the protection effect of the weighing component.

[0111] In the above embodiment, the water collection tank on the upper side wall of the waterproof cover can quickly collect the liquid overflowing from inside and outside the cup 18, preventing liquid from dripping and contaminating the area around the weighing device 16 or seeping into the interior of the weighing device 16, greatly reducing cleaning and maintenance costs, and further improving the weighing accuracy and service life of the weighing component.

[0112] In some embodiments, such as Figure 8 As shown, the weighing device 16 also includes a windproof cover 161, which is used to cover the waterproof cover, the weighing component and the cup body 18 when the weighing component supports the cup body 18.

[0113] In the above embodiments, when the weighing member supports the cup 18 to measure the weight of the liquid inside the cup 18, the windproof cover 161 can be disposed outside the waterproof cover, the weighing member, and the cup 18. On the one hand, it can effectively isolate the interference of external airflow, avoiding the cup 18 from shaking, the liquid surface from fluctuating, or the weighing member from being unstable due to airflow. On the other hand, it can cooperate with the waterproof cover to form a double protection structure, further blocking the intrusion of dust, impurities, and other contaminants on the basis of the waterproof cover, further improving the accuracy and stability of the weighing result of the weighing member.

[0114] In some embodiments, the titration and volume determination device further includes a controller (not shown in the figure) and an image acquisition device (not shown in the figure) disposed next to the pipetting device 42. The image acquisition device and the pipetting device 42 are electrically connected to the controller. The image acquisition device is used to acquire image information inside the cup 18. The controller acquires the image information and controls the volume of reaction solution dripped into the cup 18 by the pipetting device 42.

[0115] The aforementioned image acquisition device can acquire image information inside the cup 18. The controller can perform algorithmic processing (such as noise reduction, enhancement, and segmentation) on the acquired image information and combine it with a learning model to judge the reaction process between the liquid sample and the reaction solution inside the cup 18. Based on the judgment result, the controller controls the volume of the reaction solution dripped into the cup 18 by the pipetting device 42, thereby ensuring that the reaction is always in the optimal process state and avoiding incomplete reaction due to insufficient reaction solution or waste caused by excessive reaction solution.

[0116] It should be noted that the controller can be built using electronic components such as timers, comparators, registers, and digital logic circuits, or implemented using processor chips such as microcontrollers, microprocessors, programmable logic controllers (PLCs), digital signal processors (DSPs), field-programmable gate arrays (FPGAs), programmable logic arrays (PLAs), and application-specific integrated circuits (ASICs) and their peripheral circuits.

[0117] In the above embodiments, the image acquisition device can acquire the reaction process between the liquid sample and the reaction solution in the cup 18 in real time. Based on this, the controller can dynamically and accurately control the volume of the reaction solution dripped into the cup 18. This not only ensures that the reaction process is always in the optimal state, ensuring complete reaction and stable product, but also avoids the intervention of operators, thereby completely eliminating problems such as subjective errors and poor operation consistency caused by manual operation. At the same time, it reduces the safety risks of personnel contacting the reaction solution, reduces labor costs, and greatly improves the reliability and accuracy of titration and volume determination.

[0118] Although exemplary embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above exemplary embodiments are merely illustrative and are not intended to limit the scope of the invention. Various changes and modifications can be made therein by those skilled in the art without departing from the scope and spirit of the invention. All such changes and modifications are intended to be included within the scope of the invention as claimed in the appended claims.

[0119] For ease of description, the term "connection" may be used herein to describe the relationship between one or more elements or features shown in the figure and other elements or features. It should be understood that "connection" may include direct connections or indirect connections via other elements or features, and this document is intended to encompass all such cases.

[0120] 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 exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. 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, parts, components, and / or combinations thereof.

[0121] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0122] The present invention has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, those skilled in the art will understand that the present invention is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of the present invention, all of which fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A titration and volume determination apparatus, characterized in that, include: An operating platform having a first area, a second area, and a third area arranged sequentially. A feeding device, comprising a cup feeding assembly disposed on the first area, the cup feeding assembly being used to store a cup containing a liquid sample; A first transport device is disposed on the first area and is used to transport the cup to the second area; A liquid addition device, comprising a liquid addition component and a first motion component connected to the liquid addition component, wherein the first motion component drives the liquid addition component to be movably positioned above the second region, and the liquid addition component is used to add a reaction solution into the cup containing a liquid sample; A second conveying device is disposed on the third region, and the second conveying device is used to convey the cup located on the second region to the third region; An analytical device is disposed in the third region and is used to analyze and detect the solution in the cup.

2. The titration and volume determination apparatus according to claim 1, characterized in that, The cup feeding assembly includes: The hopper has a discharge port at its upper end, and multiple cups are stacked inside the hopper, forming a cup group. An actuation component, which acts on the cup assembly to move the cup assembly toward or away from the discharge port; and An opening and closing assembly includes at least two clamping members, which are movably disposed above the discharge port of the hopper. The opening and closing assembly has a closed state and a clamping state. In the closed state, the clamping members block at least part of the discharge port so that when the cup assembly moves towards the discharge port and abuts against the clamping members, the first cup in the cup assembly from top to bottom is at the same height. In the clamping state, the opening and closing assembly clamps the second cup in the cup assembly from top to bottom.

3. The titration and volume determination apparatus according to claim 2, characterized in that, There are multiple hoppers and multiple opening and closing components. The multiple hoppers are arranged in columns, and each opening and closing component corresponds to at least two hoppers in the same column.

4. The titration and volume determination apparatus according to claim 3, characterized in that, The actuation assembly includes a first driving member and a transmission assembly connected by transmission. The transmission assembly includes a driving plate with a bottom extending into each of the hoppers. The first driving member drives the cup assembly in each of the hoppers to move towards or away from the discharge port via the bottom of the driving plate.

5. The titration and volume determination apparatus according to claim 1, characterized in that, The feeding device further includes a bottle feeding assembly disposed on the first area. The bottle feeding assembly is used to store sample bottles containing the liquid sample. The sample bottles are transported to the second area via the first conveying device, and the liquid sample in the sample bottles is used to transfer to the cup.

6. The titration and volume determination apparatus according to claim 5, characterized in that, The titration and volume determination device also includes a heating device disposed on the first region. The heating device is located beside the cup feeding assembly and is used to heat the liquid sample in the sample bottle.

7. The titration and volume determination apparatus according to claim 6, characterized in that, The titration and volume determination device also includes a shaking device disposed on the first region. The shaking device is located between the bottle feeding assembly and the heating device, and the shaking device is used to shake and mix the liquid sample in the sample bottle.

8. The titration and volume determination apparatus according to claim 1, characterized in that, The titration and volume determination apparatus further includes a first conveying device and a second conveying device, wherein the first conveying device is located in the first region and the second region, and the second conveying device is located in the second region and the third region.

9. The titration and volume determination apparatus according to claim 5, characterized in that, The titration and volume determination device also includes a capping and dispensing device, which includes a conveying and capping component and a second motion component connected to the conveying and capping component. The second motion component drives the conveying and capping component to be movably positioned above the second area. The conveying and capping component is used to convey the sample bottle and the cup body, and to open or close the sample bottle.

10. The titration and volume determination apparatus according to claim 9, characterized in that, The conveying and opening assembly includes: Multiple grippers, each gripper having a gripping part and a first support part disposed at the bottom of the gripping part, the multiple first support parts being used to cooperate in supporting the cap of the sample bottle; The second driving member is connected to the plurality of gripping parts respectively. The second driving member drives the plurality of gripping parts to perform gripping and rotating movements in sequence. When the plurality of gripping parts perform the gripping movement, they cooperate with the cover and perform the rotating movement to open the cover.

11. The titration and volume determination apparatus according to claim 10, characterized in that, Each of the gripping components has a second support portion at the lower part of the first support portion, and multiple second support portions cooperate to support the edge of the cup body.

12. The titration and volume determination apparatus according to claim 1, characterized in that, The titration and volume determination apparatus further includes a rinsing device disposed on the second region, the rinsing device comprising: A liquid supply and drainage pipe assembly, comprising a first pipe body and a second pipe body sleeved outside the first pipe body, wherein a drainage channel is formed between the first pipe body and the second pipe body, which is isolated from the interior of the first pipe body; A rinsing cup assembly includes a first liquid storage cup and a second liquid storage cup sleeved outside the first liquid storage cup. A rinsing space is formed inside the first liquid storage cup. A draining space communicating with the rinsing space is formed between the first liquid storage cup and the second liquid storage cup. A first end of a first tube is connected to a liquid supply source. A second end of the first tube passes through the second liquid storage cup and the first liquid storage cup in sequence and is connected to the rinsing space. The draining channel is connected to the draining space. After the rinsing liquid flows into the rinsing space through the first tube, it flows to the draining channel through the draining space.

13. The titration and volume determination apparatus according to claim 9, characterized in that, The liquid dispensing device also includes a pipetting device connected to the second motion component. The pipetting device is used to extract the liquid sample from the sample bottle and drop it into the cup body under the action of the second motion component.

14. The titration and volume determination apparatus according to claim 13, characterized in that, The liquid dispensing device also includes a controller and a sensor disposed next to the pipetting device. The sensor and the second motion component are electrically connected to the controller. The controller acquires the liquid level information in the sample bottle sensed by the sensor and determines the depth to which the pipetting device extends into the sample bottle based on the liquid level information.

15. The titration and volume determination apparatus according to claim 1, characterized in that, The titration and volume determination device also includes a weighing device. A through groove is formed on the second region, and the weighing device passes through the through groove. The weighing device is used to obtain the weight information of the liquid in the cup.

16. The titration and volume determination apparatus according to claim 15, characterized in that, The weighing device includes a weighing element and a waterproof cover covering the outside of the weighing element, with the weighing end of the weighing element passing through the waterproof cover to support the cup body.

17. The titration and volume determination apparatus according to claim 16, characterized in that, The upper sidewall of the waterproof cover protrudes upward to enclose and form a water collection trough, and the height of the weighing end is greater than the height of the water collection trough.

18. The titration and volume determination apparatus according to claim 16, characterized in that, The weighing device also includes a windproof cover, which is used to cover the waterproof cover, the weighing component and the cup body when the weighing component supports the cup body.

19. The titration and volume determination apparatus according to claim 13, characterized in that, The titration and volume determination device also includes a controller and an image acquisition device disposed next to the pipette. The image acquisition device and the pipette are electrically connected to the controller. The image acquisition device is used to acquire image information inside the cup. The controller acquires the image information and controls the volume of the reaction solution dripped into the cup by the pipette.

Images