Liquid injection device
By integrating the clamping and pipetting devices into a single mobile unit, the problems of low automation and large space occupation of existing electrolyte injection equipment are solved, achieving efficient and accurate injection operations while reducing equipment costs and space requirements.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2025-02-17
- Publication Date
- 2026-07-23
AI Technical Summary
Existing electrolyte injection equipment has a low degree of automation and occupies a large space, resulting in high equipment costs and low operating efficiency.
By integrating the clamping and pipetting devices into a single mobile unit, the number of mobile units is reduced, the equipment structure is simplified, and the level of automation is increased through automated clamping, cap opening and closing, and liquid aspiration and injection processes.
It saves space, reduces manufacturing costs, improves the efficiency and accuracy of liquid injection operations, and reduces manual intervention and operational errors.
Smart Images
Figure CN2025077645_23072026_PF_FP_ABST
Abstract
Description
Liquid injection equipment Technical Field
[0001] This application relates to the field of battery technology, and in particular to a liquid injection device. Background Technology
[0002] In the existing technologies, during the research and development stage of electrolytes, the related injection equipment suffers from low automation and large space occupation. Summary of the Invention
[0003] In view of the above problems, this application provides a liquid injection device, which aims to simplify the structure of the liquid injection device.
[0004] In a first aspect, this application provides a liquid injection device, which includes:
[0005] The workbench is equipped with a first storage area and a dispensing position. The first storage area is used to store reagent bottles, and the dispensing position is used to place preparation bottles.
[0006] A mobile device is provided on the workbench;
[0007] A clamping device, disposed on the moving device, is used to move the clamping device to the first storage area. The clamping device is capable of clamping the cap of the reagent bottle to open or close the reagent bottle; and
[0008] A pipetting device is provided on the moving device, which is used to move the pipetting device so that the pipetting device can move to the first storage area to aspirate liquid from the reagent bottle, and move to the dispensing position to inject the aspirated liquid into the dispensing bottle at the dispensing position.
[0009] In this embodiment, by integrating the clamping device and the pipetting device into a single mobile device, the number of mobile devices is reduced, the structure of the injection equipment is simplified, space is saved in the laboratory or production environment, and the manufacturing cost of the injection equipment is reduced. Secondly, through automated clamping, cap opening and closing, and liquid aspiration and injection processes, manual intervention and operational errors are reduced, improving the efficiency and accuracy of the injection operation and enhancing the automation level of the injection equipment.
[0010] In one embodiment, the clamping device includes a second driving assembly and at least two jaws. The second driving assembly is used to drive the at least two jaws closer together, or to drive the at least two jaws further apart. At least one of the jaws includes a second connecting portion, a clamping portion, and a clamping finger. The second connecting portion is drivenly connected to the second driving assembly. The clamping portion is disposed on the second connecting portion and is used to clamp the bottle cap. An anti-slip portion is provided on the inner side of the clamping portion, and the clamping finger is disposed at the end of the clamping portion opposite to the second connecting portion. This embodiment provides better friction when the jaws contact the bottle cap through the anti-slip portion on the inner side of the clamping portion, reducing the risk of slippage or loosening, thereby enhancing the clamping effect. Furthermore, the anti-slip portion design allows the jaws to better adapt to different materials or surface properties when clamping objects, improving the clamping force.
[0011] In one embodiment, the workbench is further provided with a second storage area and a third storage area. The first storage area is used to store reagent bottles, the second storage area is used to store pipette tips to be used, and the third storage area is used to store used pipette tips. The pipetting device includes a device body and a pipette tip. The device body is disposed on the first connecting plate; the pipette tip is disposed on the device body and drivenly connected to the device body. The device body is used to drive the pipette tip to dock with the pipette tip in the second storage area. The device body is also used to drive the pipette tip to move so that the pipette tip can extend into the reagent bottle in the first storage area. The device body is used to drive the pipette tip to draw liquid from the reagent bottle in the first storage area and store it in the pipette tip. The device body is also used to drive the pipette tip to release the liquid in the pipette tip to inject it into the preparation bottle at the injection position. In this embodiment, the device body can automatically drive the pipette tip to dock with the pipette tip and perform liquid transfer, eliminating the manual operation process and improving the liquid transfer speed in the experiment, thereby improving the injection speed of the injection device. In addition, the automated drive and control mechanism reduces human intervention and improves the injection accuracy of the injection device.
[0012] In one embodiment, the moving device includes an X-axis displacement mechanism, a Y-axis displacement mechanism, a Z-axis displacement mechanism, and a connecting bracket. The X-axis displacement mechanism is located on the worktable; the Y-axis displacement mechanism is located on the X-axis displacement mechanism and can move along the length direction of the X-axis displacement mechanism; the Z-axis displacement mechanism is located on the Y-axis displacement mechanism and can move along the length direction of the Y-axis displacement mechanism; the connecting bracket is located on the Z-axis displacement mechanism, and the clamping device and the pipetting device are located on the connecting bracket. In this embodiment, the clamping device and the pipetting device are integrated by the connecting bracket and then installed on the moving device, which facilitates the installation of the clamping device and the pipetting device. Through the three mutually perpendicular displacement mechanisms, the clamping device and the pipetting device are driven to switch between multiple preset positions. The movement of each displacement mechanism is usually controlled by an independent drive device, and they can work together to achieve three-dimensional positioning.
[0013] In one embodiment, the Z-axis displacement mechanism includes a second linear module and a second connecting block disposed on the second linear module, the second connecting block being connected to the Y-axis displacement mechanism; the connecting bracket includes a first connecting plate and a second connecting plate; the first connecting plate is disposed on the connecting block, the pipetting device is disposed on the first connecting plate, the second connecting plate is disposed on the first linear module, and the clamping device is disposed on the second connecting plate. This embodiment, by separating the connecting bracket, facilitates adjustment of the connection positions of the pipetting device and the clamping device, improving the installation flexibility and versatility of the injection equipment.
[0014] In one embodiment, the connecting bracket further includes a third connecting plate, which is connected to the second linear module and the second connecting block. The third connecting plate extends along the length direction of the second linear module. The third connecting plate has a first end and a second end disposed opposite to each other along the length direction of the second linear module, with the first end of the third connecting plate close to the worktable. The first connecting plate is connected to the first end of the third connecting plate, and the second connecting block is connected to the second end of the third connecting plate. In this embodiment, by adding a third connecting plate and extending it along the length direction of the second linear module, the rigidity and stability of the entire connecting bracket can be improved.
[0015] In one embodiment, the liquid injection device includes a detection device disposed on the moving device. The moving device is used to move the detection device to a first storage area to detect the storage volume of the reagent bottle and output a reagent bottle storage volume detection signal. The moving device is also used to move the detection device to the liquid injection position to detect the storage volume of the preparation bottle and output a corresponding preparation bottle storage volume detection signal.
[0016] In one embodiment, the dispensing device includes a barcode scanner, which is located on the moving device. The moving device moves the barcode scanner to a first storage area to scan and identify the identification and location identifiers of the reagent bottles, and outputs corresponding reagent bottle identification signals and reagent bottle location information. The moving device also moves the barcode scanner to the dispensing position to scan the identification of the preparation bottle at that position and outputs corresponding preparation bottle identification information. This embodiment enhances the accuracy and transparency of material management by adding a barcode scanner. Through scanning and feedback, the dispensing device can adjust the production process, improving production efficiency.
[0017] In one embodiment, the connecting bracket includes a fourth connecting plate and a connecting flange, the connecting flange being disposed on the fourth connecting plate and connected to the second connecting plate; the scanning device and the detection device are disposed on the fourth connecting plate. This embodiment integrates the scanning device and the detection device onto the fourth connecting plate by fixing them to the fourth connecting plate and connecting them to the second connecting plate via the connecting flange, thus improving the space utilization of the equipment.
[0018] In one embodiment, the fourth connecting plate extends horizontally along its thickness direction, and has a first side and a second side opposite to each other along its thickness. The scanning device is located on the first side of the fourth connecting plate, and the detection device is located on the second side of the fourth connecting plate. This embodiment maximizes space utilization and minimizes interference between the two devices by arranging the scanning device and the detection device on opposite sides of the fourth connecting plate.
[0019] In one embodiment, the fourth connecting plate has a first arc-shaped groove and a second arc-shaped groove located on a circumference. The scanning device has a third connecting member and a fourth connecting member. The third connecting member is connected to the first arc-shaped groove and can move along the first arc-shaped groove. The fourth connecting member is connected to the second arc-shaped groove and can move along the second arc-shaped groove, so that the scanning device can rotate around the center of the circumference. This embodiment, by setting two arc-shaped grooves and connecting members that can move along the grooves, allows the scanning device to rotate within a certain range on the circumference, thereby covering more scanning angles and a wider range, improving the flexibility and efficiency of the scanning device. The arc-shaped groove design allows the scanning device to complete a wide range of scanning tasks within a limited space, solving the problem that traditional multi-angle scanning devices require a large amount of space.
[0020] In one embodiment, the fourth connecting plate is further provided with a third arc-shaped groove and a fourth arc-shaped groove located on another circumference; the detection device is provided with a fifth connecting member and a sixth connecting member, the fifth connecting member being connected to the third arc-shaped groove and movable along the third arc-shaped groove, and the sixth connecting member being connected to the fourth arc-shaped groove and movable along the fourth arc-shaped groove, so that the detection device can rotate around the center of the circumference. This embodiment, by providing two arc-shaped grooves and connecting members that can move along the grooves, allows the detection device to rotate within a certain range on the circumference, thereby covering more detection angles and a wider range, improving the flexibility and efficiency of the detection device; the arc-shaped groove design enables the detection device to complete a wide range of detection tasks within a limited space, solving the problem that traditional multi-angle detection devices require a large amount of space.
[0021] In one embodiment, the liquid injection device includes a tray assembly, on which a first storage area, a second storage area, and a third storage area are disposed; the tray assembly is also used to fix the reagent bottle. In this embodiment, by setting the first storage area, the second storage area, and the third storage area on the tray assembly, the tray assembly is used for circulation within the conveying device, and the liquid injection device can achieve orderly storage, rapid retrieval, and waste management of materials.
[0022] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description
[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0024] Figure 1 is a schematic diagram of the structure of a liquid injection device according to some embodiments of this application;
[0025] Figure 2 is a schematic diagram of the structure of a liquid injection device according to some embodiments of this application;
[0026] Figure 3 is a partial enlarged structural diagram of the embodiment shown in Figure 2;
[0027] Figure 4 is another side view of Figure 3;
[0028] Figure 5 is a partial enlarged structural schematic diagram of another part of the embodiment shown in Figure 2;
[0029] Figure 6 is a structural schematic diagram of the fourth connecting plate and connecting flange in Figure 5;
[0030] Figure 7 is a partial enlarged structural schematic diagram of another part of the embodiment shown in Figure 1.
[0031] The reference numerals in the detailed embodiments are as follows: 10, workbench; 10b, injection position; 10e, first storage area; 10f, second storage area; 10h, third storage area; 12, injection equipment; 500, moving device; 510, X-axis displacement mechanism; 520, Y-axis displacement mechanism; 530, Z-axis displacement mechanism; 531, second linear module; 532, second connecting block; 540, connecting bracket; 541, first connecting plate; 542, second connecting plate; 543, third connecting plate; 544, fourth connecting plate; 544a, the first... 544b, Second arc-shaped groove; 544c, Third arc-shaped groove; 544d, Fourth arc-shaped groove; 545, Connecting flange; 600, Clamping device; 610, Second drive assembly; 620, Gripper; 621, Second connecting part; 622, Clamping part; 623, Grip finger; 624, Anti-slip part; 700, Pipette; 710, Device body; 720, Pipette tip; 800, Detection device; 900, Barcode scanning device; 14, Conveying device; 16, Reagent bottle; 17, Preparation bottle; 18, Pipe tip; 19, Tray assembly.
[0032] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0033] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.
[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0035] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.
[0036] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0037] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0038] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).
[0039] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to 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 the embodiments of this application.
[0040] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0041] With the continuous expansion of the battery market demand, the market has increasingly higher requirements for battery performance. Electrolyte, known as the "blood" of the battery, plays a crucial role in the battery. The performance of the electrolyte directly affects the battery's energy density, cycle life, and charge-discharge performance. Among these, improving the performance of the electrolyte through the research and development of electrolyte formulations is one of the important ways to improve battery performance.
[0042] During the electrolyte research and development phase, rapid and high-precision electrolyte sample preparation allows for timely adjustments to the formula, shortening the research and development cycle. Compared to the large-scale automated equipment used in the production phase, laboratory equipment in the research and development phase suffers from low integration, resulting in a large space occupation.
[0043] Based on this, this application proposes a new liquid injection device that integrates the clamping device and the pipetting device into a single mobile device, thereby reducing the number of mobile devices, saving space in the laboratory or production environment, and lowering the manufacturing cost of the liquid injection device. Secondly, through automated clamping, cap opening and closing, and liquid aspiration and injection processes, manual intervention and operational errors are reduced, thereby improving the efficiency and accuracy of the liquid injection operation.
[0044] The device disclosed in this application is used for sample preparation of electrolyte. Of course, it can also be used in the chemical industry, such as the preparation of chemical reaction ingredients, the pharmaceutical industry (preparation of drug solutions and injection solutions such as vaccines), the food and beverage industry, the coating and ink industry, etc., which will not be described in detail here.
[0045] For ease of understanding and explanation, in Figures 1 to 7 of this application, solid arrows indicate positions, slots, or holes.
[0046] In some embodiments, referring to FIG1 and further to FIGS. 2 to 5, the liquid dispensing device 12 includes a worktable 10, a moving device 500, a clamping device 600, and a pipetting device 700. The worktable 10 has a first storage area 10e and a liquid dispensing position 10b. The first storage area 10e is used to store reagent bottles 16, and the liquid dispensing position 10b is used to place preparation bottles 17. The moving device 500 is disposed on the worktable 10. The clamping device 600 is used to clamp the cap of the reagent bottle 16. The clamping device 600 is disposed on the moving device 500. The clamping device 600 is used to move the clamping device 600 to the first storage area 10e. The clamping device 600 can clamp the cap of the reagent bottle 16 in the first storage area 10e to open or close the reagent bottle 16. The pipetting device 700 is provided on the moving device 500. The moving device 500 is used to move the pipetting device 700 so that the pipetting device 700 can move to the first storage area 10e to draw liquid from the reagent bottle 16 in the first storage area 10e, and move to the dispensing position 10b to inject the drawn liquid into the dispensing bottle 17 in the dispensing position 10b.
[0047] This refers to an operating platform used to support and fix the material being injected (such as solvent, additive, electrolyte, lubricating oil, or other liquids). The workbench 10 of the injection device 12 is responsible for receiving, positioning, and fixing the items to be injected, and providing support for the injection process. In this embodiment, the workbench 10 is used to support and house the moving device 500, and is divided into different functional areas. The first storage area 10e is used to store reagent bottles 16, and the injection position 10b is used to place preparation bottles 17.
[0048] The first storage area 10e is a dedicated location on the workbench 10 for storing reagent bottles 16. This area is a fixed location for placing reagent bottles 16, and under normal circumstances, reagent bottles 16 can be clamped, opened, or sealed in this location.
[0049] The injection position 10b is a specially designed location on the workbench 10 for placing the preparation bottle 17.
[0050] The mobile device 500, capable of moving within a preset range, firstly, needs to enable the mobile device 500 to drive the clamping device 600 to move between the first storage area 10e and the injection position 10b. Further, as shown in Figure 1, the mobile device 500 can move between any two of the first storage area 10e, the injection position 10b, the second storage area 10f, and the third storage area 10h. Of course, the mobile device 500 can move to other positions within the preset range. For example, the mobile device 500 is a robotic arm or a mobile platform.
[0051] A gripping device 600 is a mechanical device typically installed at the end of a robot or automated equipment for gripping, securing, transporting, or releasing workpieces. In this embodiment, the workpiece may be a bottle cap, a reagent bottle 16, or a preparation bottle 17, etc., thereby enabling the handling, assembly, inspection, or other operations of items. The gripping device 600 typically consists of multiple components, including a mechanical gripping part 622, an electric actuator, sensors, etc., and can control the gripping action in various ways as needed. Exemplarily, the gripping device 600 is a pneumatic gripper 620, an electric gripper 620, or a hydraulic gripper 620, etc. In this embodiment, the gripping device 600 is used to grip, secure, transport, or release the bottle cap of the reagent bottle 16, thereby opening or closing the reagent bottle 16. Of course, in other embodiments of this application, the gripping device 600 can also be used to grip, secure, or release the reagent bottle 16 and the preparation bottle 17.
[0052] The pipetting device 700 is a device capable of aspirating and storing liquid therein, and of discharging the liquid stored in the pipetting device 700 in a preset manner; that is, a device capable of aspirating, storing and discharging liquid. For example, the pipetting device 700 is an electronic pipette.
[0053] Traditional liquid dispensing equipment 12 often requires manual operation of multiple steps, such as clamping the reagent bottle 16, opening and closing the cap of the reagent bottle 16, and drawing and injecting the liquid. The process is cumbersome and easily affected by human factors. In this embodiment, the clamping device 600 clamps and opens / closes the cap of the reagent bottle 16, reducing the risk of manual operation of the cap. By combining the pipetting device 700 and the moving device 500, the automatic drawing and injection of liquid from the reagent bottle 16 is achieved.
[0054] In this embodiment, by integrating the clamping device 600 and the pipetting device 700 onto a single mobile device 500, the number of devices can be reduced, the structure of the liquid injection device 12 can be simplified, space can be saved in the laboratory or production environment, and the manufacturing cost of the liquid injection device 12 can be reduced. Secondly, through automated clamping, cap opening and closing, and liquid aspiration and injection processes, manual intervention and operational errors are reduced, thereby improving the efficiency and accuracy of the liquid injection operation.
[0055] In some embodiments, referring to FIG4, the clamping device 600 includes a second drive assembly 610 and at least two grippers 620. The second drive assembly 610 is used to drive the at least two grippers 620 to move closer to each other, or the second drive assembly 610 is used to drive the at least two grippers 620 to move further apart from each other.
[0056] In this embodiment, the number of grippers 620 can be two, three, four, or more. When there are two grippers 620, they can move closer to or further apart from each other. This can be done by both grippers 620 moving simultaneously, or by one gripper 620 remaining stationary while the other moves, thus changing the clamping distance between the two grippers 620 to achieve the gripping, fixing, or releasing of the workpiece. In the embodiment with three grippers 620, they can move closer to or further apart from each other, or by all three grippers 620 moving simultaneously, or by one gripper 620 remaining stationary while the other two move, thus changing the clamping distance between the three grippers 620 to achieve the gripping, fixing, or releasing of the workpiece.
[0057] Furthermore, at least one gripper 620 includes a second connecting portion 621, a gripping portion 622, and a gripping finger 623. The second connecting portion 621 is motive-connected to the second driving assembly 610. The gripping portion 622 is disposed on the second connecting portion 621 and is used to grip the bottle cap. The inner side of the gripping portion 622 is provided with an anti-slip portion 624. The gripping finger 623 is disposed at one end of the gripping portion 622 away from the second connecting portion 621.
[0058] The anti-slip portion 624 may be provided on the inner side of a clamping portion 622 with only one gripper 620, or it may be provided on the inner side of the clamping portion 622 of all grippers 620. The inner side of the clamping portion 622 refers to the side where two grippers 620 are close to each other. The anti-slip portion 624 can be of many types; it may be a protrusion or ridge on the inner wall of the clamping portion 622, or the inner wall of the clamping portion 622 may be uneven. For example, the anti-slip portion 624 may be multiple ridges on the inner wall of the clamping portion 622, arranged at intervals along the circumference of the clamping portion 622, extending from the second connecting portion 621 toward the gripper finger 623.
[0059] In this embodiment, the anti-slip part 624 on the inner side of the clamping part 622 can provide better friction when the gripper 620 contacts the bottle cap, reducing the risk of slippage or loosening, thereby enhancing the clamping effect. In addition, the design of the anti-slip part 624 allows the gripper 620 to better adapt to different materials or surface properties when clamping objects, thereby improving the clamping force.
[0060] In some embodiments, referring to FIG3, the workbench 10 is provided with a dispensing position 10b, a first storage area 10e, a second storage area 10f, and a third storage area 10h. The first storage area 10e is used to store reagent bottles 16, the second storage area 10f is used to store pipette tips 18 to be used, and the third storage area 10h is used to store used pipette tips 18. The pipetting device 700 includes a device body 710 and a pipetting head 720. The device body 710 is disposed on the first connecting plate 541; the pipetting head 720 is disposed on the device body 710 and connected to the device body 710. Drive connection; the device body 710 is used to drive the pipette head 720 to dock with the pipette tip 18 in the second storage area 10f, the device body 710 is used to drive the pipette head 720 to move so that the pipette tip 18 can extend into the reagent bottle 16 in the first storage area 10e, the device body 710 is used to drive the pipette head 720 to draw liquid from the reagent bottle 16 in the first storage area 10e according to the target injection volume and store it in the pipette tip 18; the device body 710 is also used to drive the pipette head 720 to release the liquid in the pipette tip 18 to inject into the preparation bottle 17 in the injection position 10b.
[0061] The main body 710 is the core structure of this pipetting device 700. Its primary function is to drive the pipetting head 720 to perform liquid transfer operations. These operations include docking the pipetting head 720 with the pipette tip 18, aspirating liquid from the reagent bottle 16, storing the liquid in the pipette tip 18, and releasing the liquid into the preparation bottle 17. The main body 710 mainly includes a drive assembly and a control assembly. The control assembly is communicatively connected to the control device of the dispensing equipment 12 and controls the drive assembly to drive the pipetting head 720 to perform operations according to the set target dispensing volume.
[0062] The main body 710 is used to drive the pipette head 720 to draw liquid from the reagent bottle 16 in the first storage area 10e according to the target injection volume and store it in the pipette head 18. Here, the pipette head 18 refers to the pipette head 18 that is connected to and installed in the main body 710 of the device for temporary storage of liquid.
[0063] The pipette tip 720 is a component connected to and driven by the device body 710, typically consisting of a connector, a liquid delivery channel, and a connector that drives the device body 710. The main function of the pipette tip 720 is to work in conjunction with the device body 710. After being installed and mated with the pipette tip 18, the pipette tip 720 performs liquid aspiration and injection operations. The pipette tip 720 is moved by the drive system, inserting the pipette tip 18 into the reagent bottle 16 to aspirate liquid and store it within the pipette tip 18. Then, as needed, the liquid is precisely injected into the target preparation bottle 17.
[0064] In this embodiment, the main body 710 can automatically drive the pipette head 720 to dock with the pipette tip 18 and perform liquid transfer, eliminating the need for manual operation and increasing the liquid transfer speed in the experiment, thereby improving the liquid injection speed of the injection equipment. In addition, the automated drive and control mechanism reduces human intervention, improves the stability of liquid transfer, and improves the liquid injection accuracy of the injection equipment.
[0065] In some embodiments, referring to FIG2 and further to FIG3 to FIG5, the moving device 500 includes an X-axis displacement mechanism 510, a Y-axis displacement mechanism 520, a Z-axis displacement mechanism 530, and a connecting bracket 540. The X-axis displacement mechanisms are disposed on the worktable 10; the Y-axis displacement mechanism 520 is disposed on the X-axis displacement mechanism 510 and can move along the length direction of the X-axis displacement mechanism 510; the Z-axis displacement mechanism 530 is disposed on the Y-axis displacement mechanism 520 and can move along the length direction of the Y-axis displacement mechanism 520; the connecting bracket 540 is disposed on the Z-axis displacement mechanism 530, and the clamping device 600 and the pipetting device 700 are disposed on the connecting bracket 540.
[0066] The X-axis displacement mechanism 510, Y-axis displacement mechanism 520, and Z-axis displacement mechanism 530 can be linear modules, ball screw mechanisms, belt drive mechanisms, pneumatic / hydraulic cylinder mechanisms, etc. For example, the X-axis displacement mechanism 510, Y-axis displacement mechanism 520, and Z-axis displacement mechanism 530 are linear modules. Thus, the X-axis displacement mechanism 510, Y-axis displacement mechanism 520, and Z-axis displacement mechanism 530 constitute an XYZ three-axis combined displacement stage. The X-axis displacement mechanism 510 typically controls the horizontal movement of the connecting bracket 540, moving it horizontally. The Y-axis displacement mechanism 520 typically controls the longitudinal movement, moving it horizontally and perpendicular to the X-axis. In this embodiment, the connecting bracket 540 is located on the Z-axis displacement mechanism 530, which controls vertical movement. The Z-axis displacement mechanism 530 is mounted on the Y-axis mechanism.
[0067] In the X-axis displacement mechanism 510, Y-axis displacement mechanism 520 and Z-axis displacement mechanism 530, each displacement mechanism is usually equipped with an independent drive device (e.g., stepper motor, servo motor, linear motor, etc.), a guide system (the guide system is used to control the platform to move smoothly in the corresponding direction, and usually uses components such as ball screws, rollers, linear guides 340 to provide guidance), a feedback system (e.g., encoders, linear sensors, etc., used to monitor and provide feedback on the position information of the platform in real time), and a control system (usually composed of PLC, motion control card or computer, etc., used to coordinate and control the movement of the three axes).
[0068] The connecting bracket 540 is a mounting component. After the clamping device 600 and the pipetting device 700 are integrated through the connecting bracket 540, they are then installed on the moving device 500, which facilitates the installation of the clamping device 600 and the pipetting device 700.
[0069] In this embodiment, the clamping device 600 and the pipetting device 700 are integrated by the connecting bracket 540 and then installed on the moving device 500, which facilitates the installation of the clamping device 600 and the pipetting device 700. Through three displacement mechanisms with mutually perpendicular movement directions, the clamping device 600 and the pipetting device 700 are driven to switch between multiple preset positions. The movement of each displacement mechanism is usually controlled by an independent drive system. They can work together to achieve three-dimensional positioning.
[0070] In some embodiments, please refer to FIG3, the Z-axis displacement mechanism 530 includes a second linear module 531 and a second connecting block 532 disposed on the second linear module 531, the second connecting block 532 being connected to the Y-axis displacement mechanism 520; the connecting bracket 540 includes a first connecting plate 541 and a second connecting plate 542; the first connecting plate 541 is disposed on the connecting block, the pipetting device 700 is disposed on the first connecting plate 541, the second connecting plate 542 is disposed on the first linear module 131, and the clamping device 600 is disposed on the second connecting plate 542.
[0071] The connecting bracket 540 includes a first connecting plate 541 and a second connecting plate 542, wherein the first connecting plate 541 and the second connecting plate 542 are independently arranged. In embodiments where the first connecting plate 541 and the second connecting plate 542 are independently arranged, it is convenient to adjust the connection position between the pipetting device 700 and the clamping device 600, thereby improving the installation flexibility and versatility of the injection device 12. In other embodiments, the first connecting plate 541 and the second connecting plate 542 may have a connecting relationship or an installation relationship.
[0072] This embodiment, by separating the connecting bracket 540, facilitates the adjustment of the connection position between the pipetting device 700 and the clamping device 600, thereby improving the installation flexibility and versatility of the injection device 12.
[0073] In some embodiments, referring to FIG3, the connecting bracket 540 further includes a third connecting plate 543, which is connected to the second linear module 531 and the second connecting block 532. The third connecting plate 543 extends along the length direction of the second linear module 531. The third connecting plate 543 has a first end and a second end that are disposed opposite to each other along the length direction of the second linear module 531. The first end of the third connecting plate 543 is close to the worktable 10. The first connecting plate 541 is connected to the first end of the third connecting plate 543, and the second connecting block 532 is connected to the second end of the third connecting plate 543.
[0074] The third connecting plate 543 is also a connector. By setting the third connecting plate 543, it is convenient to install the second linear module 531 and the pipetting device 700, and the second linear module 531 and the Y-axis displacement mechanism 520. This way, the pipetting device 700 and the Y-axis displacement mechanism 520 are not directly on the second linear module 531, which can reduce the stress points of the second linear module 531.
[0075] In this embodiment, by adding a third connecting plate 543 and extending it along the length of the second straight module 531, the rigidity and stability of the entire connecting bracket 540 can be improved. The two ends of the third connecting plate 543 are connected to the first connecting plate 541 and the second connecting block 532 respectively, making the overall structure more compact and evenly distributed with stress, reducing possible twisting or deformation. In addition, the entire structure is more flexible and convenient to install and adjust.
[0076] In some embodiments, the dispensing device 12 includes a detection device 800, which is disposed on a moving device 500. The moving device 500 is used to move the detection device 800 to a first storage area 10e to detect the storage amount of reagent bottles 16 located in the first storage area 10e and output a reagent bottle 16 storage amount detection signal. The moving device 500 is also used to move the detection device 800 to a dispensing position to detect the storage amount of preparation bottles 17 located in the dispensing position and output a corresponding preparation bottle 17 storage amount detection signal.
[0077] The detection device 800 refers to a device used to detect items, components, or states, and typically includes sensors, detection modules, cameras, etc. In this embodiment, through the detection device 800, the liquid filling device 12 can monitor the bottle inventory in the first storage area 10e and the liquid filling position in real time, reducing the interruption of operation due to insufficient or excessive bottles. The inventory information is detected in real time and fed back to the control device, which can make timely adjustments based on this information.
[0078] In this embodiment, the detection device 800 is used to monitor and provide feedback on the bottle inventory information in different storage areas and injection stations in real time, thereby enhancing the automation and intelligence of the injection equipment 12.
[0079] In some embodiments, the dispensing device 12 includes a barcode scanner 900, which is mounted on a moving device 500. The moving device 500 is used to move the barcode scanner 900 to a first storage area 10e to scan and identify the identification and location identifier of the reagent bottle 16 located in the first storage area 10e, and output the corresponding identification signal and location information of the reagent bottle 16. The moving device 500 is also used to move the barcode scanner 900 to a dispensing position 10b to scan the identification of the preparation bottle 17 at that position and output the corresponding identification information of the preparation bottle 17.
[0080] The scanning device 900 is a device that performs the scanning function and is typically used to scan identification information such as barcodes or QR codes, for example, barcode / QR code scanning, RFID technology, or location information identification. Barcode / QR code scanning refers to the scanning device 900 using a high-efficiency scanner (such as a barcode scanner or QR code reader) to read the information of the reagent bottle 16 and the preparation bottle 17.
[0081] This embodiment enhances the accuracy and transparency of material management by adding a barcode scanning device 900. Through scanning and feedback, the liquid injection device 12 can adjust the production process and improve production efficiency.
[0082] In some embodiments, please refer to Figures 4 to 6. The connecting bracket 540 includes a fourth connecting plate 544 and a connecting flange 545. The connecting flange 545 is disposed on the fourth connecting plate 544 and connected to the second connecting plate 542. The barcode scanning device 900 and the detection device 800 are disposed on the fourth connecting plate 544.
[0083] The connecting bracket 540 refers to a structural component used to support, fix or connect other components. In this solution, the connecting bracket 540 serves as an installation structure, providing a basis for installing the barcode scanner 900 and the detection device 800.
[0084] The fourth connecting plate 544 is part of the connecting bracket 540 and serves to support and connect other components. The fourth connection is typically a flat plate that provides mounting positions for the barcode scanner 900 and the detection device 800.
[0085] The connecting flange 545 refers to the structure that connects the fourth connecting plate 544 and the second connecting plate 542. The connecting flange 545 is typically integrally formed with the fourth connecting plate 544; for example, the fourth connecting plate 544 and the connecting flange 545 are formed by bending the same piece of sheet metal. The connecting flange 545 helps provide additional support and stability, making the connection more robust. The second connecting plate 542, as mentioned above, is the connecting plate used to mount the clamping device 600. The connecting flange 545 is mounted on the second connecting plate 542, which serves as a component of the support structure.
[0086] In this embodiment, the scanning device 900 and the detection device 800 are fixed on the fourth connecting plate 544 and connected to the second connecting plate 542 via the connecting flange 545. This integrates the scanning device 900 and the detection device 800 onto the fourth connecting plate 544, improving the space utilization of the equipment and optimizing the system layout. In addition, the design of the fourth connecting plate 544 connecting to the second connecting plate 542 via the connecting flange 545 simplifies the installation and assembly process of the bracket. The flange connection method may be more convenient than the traditional bolt or welding method, reducing assembly time and cost.
[0087] In some embodiments, please continue to refer to Figures 4 to 6. The fourth connecting plate 544 extends horizontally in the thickness direction. The fourth connecting plate 544 has a first side and a second side opposite to each other in the opposite direction of its thickness. The barcode scanning device 900 is disposed on the first side of the fourth connecting plate 544, and the detection device 800 is disposed on the second side of the fourth connecting plate 544.
[0088] The fourth connecting plate 544, mentioned in the previous embodiment, is a connecting structure. In this embodiment, the fourth connecting plate 544 extends horizontally in its thickness direction and has opposing first and second sides. "Thickness direction" refers to the direction perpendicular to the main plane of the fourth connecting plate 544, while "horizontal direction" is the direction parallel to the plane. That is to say, the main plane of the fourth connecting plate 544 is placed vertically.
[0089] In this embodiment, by arranging the barcode scanning device 900 and the detection device 800 on both sides of the fourth connecting plate 544, space can be utilized to the maximum extent and interference between the two devices can be reduced. The separation of the barcode scanning device 900 and the detection device 800 allows them to perform their functions independently. At the same time, since they are installed on the same connecting plate, the compactness and coordination of the liquid injection device 12 are improved.
[0090] In some embodiments, please continue to refer to Figures 4 to 6. The fourth connecting plate 544 is provided with a first arc-shaped groove 544a and a second arc-shaped groove 544b located on a circumference. The scanning device 900 is provided with a third connector and a fourth connector. The third connector is connected to the first arc-shaped groove 544a and can move along the first arc-shaped groove 544a. The fourth connector is connected to the second arc-shaped groove 544b and can move along the second arc-shaped groove 544b, so that the scanning device 900 can rotate around the center of the circumference.
[0091] The first arc-shaped groove 544a and the second arc-shaped groove 544b can be understood as arc-shaped tracks located on the fourth connecting plate 544, providing channels for the connecting parts of the scanning device 900 to move along the arc-shaped trajectory; the first arc-shaped groove 544a and the second arc-shaped groove 544b provide the mechanical path required for the scanning device 900 to rotate around the circumference. By setting two arc-shaped grooves, the scanning device 900 can complete the rotation action around a certain point (i.e., the center of the circle) under the action of these two grooves, thereby realizing scanning operations at different angles.
[0092] The third connector and the fourth connector are connected to the first arc-shaped groove 544a and the fourth connector is connected to the second arc-shaped groove 544b. These two connectors are the connecting links between the barcode scanning device 900 and the fourth connecting plate 544. They can move freely along the arc-shaped trajectory in their respective arc-shaped grooves, so that the barcode scanning device 900 can rotate around the center. For example, the third connector and the fourth connector are threaded connectors.
[0093] In this embodiment, by setting two arc-shaped grooves and a connector that can move along the grooves, the barcode scanning device 900 can rotate within a certain range on the circumference, thereby covering more scanning angles and a wider range, improving the flexibility and efficiency of the barcode scanning device 900; the design of the arc-shaped grooves enables the barcode scanning device 900 to complete a wide range of scanning tasks in a limited space, solving the problem that traditional multi-angle scanning devices need to occupy a lot of space.
[0094] In some embodiments, please continue to refer to Figures 4 to 6. The fourth connecting plate 544 is further provided with a third arcuate groove 544c and a fourth arcuate groove 544d located on another circumference. The detection device 800 is provided with a fifth connector and a sixth connector. The fifth connector is connected to the third arcuate groove 544c and can move along the third arcuate groove 544c. The sixth connector is connected to the fourth arcuate groove 544d and can move along the fourth arcuate groove 544d, so that the detection device 800 can rotate around the center of the circumference.
[0095] The third arc-shaped groove 544c and the fourth arc-shaped groove 544d are the same as the first arc-shaped groove 544a and the second arc-shaped groove 544b in the previous embodiment; for related explanations, please refer to the previous embodiment. The fifth connector and the sixth connector are the same as the third connector and the fourth connector in the previous embodiment; for related explanations, please refer to the previous embodiment.
[0096] In this embodiment, by setting two arc-shaped grooves and a connecting member that can move along the grooves, the detection device 800 can rotate within a certain range on the circumference, thereby covering more detection angles and a wider range, improving the flexibility and efficiency of the detection device 800; the design of the arc-shaped grooves enables the detection device 800 to complete a wide range of detection tasks in a limited space, solving the problem that traditional multi-angle detection devices 800 need to occupy a lot of space.
[0097] [Correction based on Rule 91, 31.03.2025] The tray assembly 19 is a supporting structure in the liquid injection device 12, used to place and separate different functional areas; the main function of the tray assembly 19 is to provide stable support and layout for different materials or equipment during the liquid injection process. For example, the tray assembly 19 may be a fixed or movable component, and its position or angle can be adjusted according to operational needs. For example, the tray assembly 19 can be placed on the workbench 10 or on the conveying device 14.
[0098] The tray assembly 19 is a supporting structure in the liquid injection device 12, used to place and separate different functional areas. The main function of the tray assembly 19 is to provide stable support and layout for different materials or equipment during the liquid injection process. For example, the tray assembly 19 may be a fixed or movable component, and its position or angle can be adjusted according to operational needs. For example, the tray assembly 19 can be placed on the workbench 10 or on the conveying device 14.
[0099] The first storage area 10e is located on the tray assembly 19 and is an independent area. In this embodiment, the first storage area 10e is used to store reagent bottles 16.
[0100] The second storage area 10f is another separate area located on the tray assembly 19 for storing unused suction heads 18.
[0101] The third storage area 10h, also located on the tray assembly 19, is a specially designed area that may be used to store items that have been filled with liquid or waste, such as used suction tips 18.
[0102] The tray assembly 19 is also used to fix the reagent bottle 16. The cap of the reagent bottle 16 can be plate-shaped or cylindrical. When the cap of the reagent bottle 16 can be plate-shaped, the clamping device removes the cap. When the cap of the reagent bottle 16 is cylindrical, the clamping device 600 usually needs to rotate the cap and rotate it to a preset position before removing the cap.
[0103] In this embodiment, by setting a first storage area 10e, a second storage area 10f, and a third storage area 10h on the tray assembly 19, the tray assembly 19 is used to circulate within the conveying device 14, and the liquid injection device 12 can realize the orderly storage, rapid retrieval, and waste management of materials.
[0104] The aforementioned moving device 500, clamping device 600, pipetting device 700, detection device 800, and barcode scanning device 900 are all connected via communication through a control device.
[0105] The control device is one of the components used to regulate, manage, and monitor liquid injection equipment. It typically consists of a control unit, sensors, and a user interface. In this embodiment, the control device controls the actions of actuators such as pipettes or pumps according to set parameters (such as injection volume and speed), thereby achieving automated, high-throughput, and high-precision liquid transfer.
[0106] The control unit, including a microprocessor, memory, and input / output interfaces, is flexible and scalable, allowing it to adjust its operating mode according to different injection needs. As the brain of the control system, the control unit receives feedback signals from sensors and issues commands based on user input or preset programs, driving various components in the injection device to perform corresponding actions. It typically has real-time calculation and adjustment capabilities, enabling it to dynamically adjust the injection speed, volume, and position of the liquid as needed.
[0107] A sensor system is used to monitor the state of a liquid or parameters during the injection process in real time, such as liquid volume, injection rate, air pressure, and temperature. The sensors transmit these data to the control device for real-time adjustment and optimization control. A sensor system typically includes volume sensors, flow sensors, pressure sensors, position sensors, and temperature sensors.
[0108] The user interface is used to display system status, operation instructions, and injection parameter settings. Operators can set the target liquid volume, injection speed, mode selection, etc. through the interface and monitor the system's operating status in real time. The user interface is usually a touch screen, keypad, or computer interface.
[0109] The automatic calibration system is used to improve the injection accuracy of the injection device 12. The system can automatically perform calibration to improve the accuracy of injection volume, flow rate and position, and reduce errors caused by operation error or equipment aging. The automatic calibration system automatically adjusts the liquid injection volume and speed through sensors and feedback mechanisms.
[0110] The feedback control system monitors the liquid transfer status in real time, compares the actual parameters with the set target, and automatically adjusts the liquid injection operation to ensure the accuracy and consistency of liquid injection. Through closed-loop control, it optimizes the liquid injection process and reduces deviations caused by external changes or system errors.
[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A liquid injection device, wherein, include: The workbench is equipped with a first storage area and a dispensing position. The first storage area is used to store reagent bottles, and the dispensing position is used to place preparation bottles. A mobile device is provided on the workbench; A clamping device is provided on the moving device. The moving device is used to move the clamping device to the first storage area. The clamping device can clamp the cap of the reagent bottle to open or close the reagent bottle. as well as A pipetting device is provided on the moving device, which is used to move the pipetting device so that the pipetting device can move to the first storage area to aspirate liquid from the reagent bottle, and move to the dispensing position to inject the aspirated liquid into the preparation bottle.
2. The liquid injection device as described in claim 1, wherein, The clamping device includes a second drive assembly and at least two jaws, wherein the second drive assembly is used to drive the at least two jaws to move closer to each other, or the second drive assembly is used to drive the at least two jaws to move further apart from each other; Wherein, at least one of the grippers includes: The second connecting part is driven to connect with the second driving component; A clamping part is provided at the second connecting part, the clamping part being used to clamp the bottle cap, and the inner side of the clamping part is provided with an anti-slip part, and The clamping finger is located at one end of the clamping portion away from the second connecting portion.
3. The liquid injection device as described in claim 1 or 2, wherein, The workbench is further provided with a second storage area and a third storage area. The second storage area is used to store pipette tips to be used, and the third storage area is used to store used pipette tips. The pipetting device includes: The main body of the device is located on the first connecting plate; and A pipette tip is disposed on the main body of the device and is drivenly connected to the main body of the device; The main body of the device is used to drive the pipette tip to dock with the pipette tip in the second storage area. The main body of the device is also used to drive the pipette tip to move so that the pipette tip can extend into the reagent bottle in the first storage area. The main body of the device is used to drive the pipette tip to draw liquid from the reagent bottle in the first storage area and store it in the pipette tip. The main body of the device is also used to drive the pipette tip to release the liquid in the pipette tip to inject it into the preparation bottle at the injection position.
4. The liquid injection device according to any one of claims 1 to 3, wherein, The mobile device includes: The X-axis displacement mechanism is located on the worktable; A Y-axis displacement mechanism is provided on the X-axis displacement mechanism, and the Y-axis displacement mechanism can move along the length direction of the X-axis displacement mechanism; A Z-axis displacement mechanism is provided on the Y-axis displacement mechanism, and the Z-axis displacement mechanism can move along the length direction of the Y-axis displacement mechanism; and A connecting bracket is provided on the Z-axis displacement mechanism, and the clamping device and the pipetting device are provided on the connecting bracket.
5. The liquid injection device as described in claim 4, wherein, The Z-axis displacement mechanism includes a second linear module and a second connecting block disposed on the second linear module, the second connecting block being connected to the Y-axis displacement mechanism; The connecting bracket includes a first connecting plate and a second connecting plate; the pipetting device is disposed on the first connecting plate, the second connecting plate is disposed on the first linear module, and the clamping device is disposed on the second connecting plate.
6. The liquid injection device as described in claim 5, wherein, The connecting bracket further includes a third connecting plate, which is connected to the second linear module and the second connecting block, and the third connecting plate extends along the length direction of the second linear module; The third connecting plate has a first end and a second end that are arranged opposite to each other along the length direction of the second straight module. The first end of the third connecting plate is close to the workbench. The first connecting plate is connected to the first end of the third connecting plate, and the second connecting block is connected to the second end of the third connecting plate.
7. The liquid injection device according to any one of claims 4 to 6, wherein, The liquid injection device includes a detection device located on the moving device. The moving device is used to move the detection device to the first storage area to detect the storage volume of the reagent bottle and output a reagent bottle storage volume detection signal. The moving device is also used to move the detection device to the liquid injection position to detect the storage volume of the preparation bottle and output a corresponding preparation bottle storage volume detection signal.
8. The liquid injection device according to any one of claims 4 to 7, wherein, The liquid dispensing device includes a barcode scanning device, which is located on the mobile device. The mobile device is used to move the barcode scanning device to the first storage area to scan and identify the identification and location of the reagent bottle, and output the corresponding reagent bottle identification signal and reagent bottle location information. The mobile device is also used to move the barcode scanning device to the liquid dispensing position to scan the identification of the preparation bottle and output the corresponding preparation bottle identification information.
9. The liquid injection device as described in claim 7 or 8, wherein, The connecting bracket includes a fourth connecting plate and a connecting flange, the connecting flange being disposed on the fourth connecting plate and connected to the second connecting plate; the scanning device and the detection device are disposed on the fourth connecting plate.
10. The liquid injection device as described in claim 9, wherein, The fourth connecting plate extends horizontally along its thickness direction and has a first side and a second side opposite to each other along its thickness. The scanning device is located on the first side of the fourth connecting plate, and the detection device is located on the second side of the fourth connecting plate.
11. The liquid injection device as described in claim 9 or 10, wherein, The fourth connecting plate is provided with a first arc-shaped groove and a second arc-shaped groove located on a circumference. The scanning device is provided with a third connecting member and a fourth connecting member. The third connecting member is connected to the first arc-shaped groove and can move along the first arc-shaped groove. The fourth connecting member is connected to the second arc-shaped groove and can move along the second arc-shaped groove, so that the scanning device can rotate around the center of the circumference as an axis. And / or, the fourth connecting plate is provided with a third arc-shaped groove and a fourth arc-shaped groove located on another circumference; the detection device is provided with a fifth connecting member and a sixth connecting member, the fifth connecting member is connected in the third arc-shaped groove and can move along the third arc-shaped groove, and the sixth connecting member is connected in the fourth arc-shaped groove and can move along the fourth arc-shaped groove, so that the detection device can rotate around the center of the circumference as an axis.
12. The liquid injection device according to any one of claims 1 to 11, wherein, The liquid dispensing device includes a tray assembly, with a first storage area, a second storage area, and a third storage area disposed on the tray assembly; the tray assembly is also used to fix the reagent bottle.