Positioning assembly for positioning a corner of a container, shaking mechanism and pipetting device

Abstract

The utility model provides a kind of for the positioning assembly, oscillation mechanism and pipetting equipment for the corner positioning of container. Positioning assembly includes locating block, movable arm and elastic piece. The side of locating block towards the container to be positioned is formed with abutting face. One end of movable arm is rotatably connected with locating block, and the other end of movable arm is movably arranged. One end of elastic piece is connected with locating block, and the other end of elastic piece is fixedly arranged. Movable arm drives locating block to move from first position to second position by external force to form space for accommodating the container to be positioned;After the external force is removed, elastic piece drives locating block to move from second position to first position to make abutting face abut with the corner of the container to be positioned. Thus, the container to be positioned of different sizes can be positioned, when positioning assembly is applied to cell biology research and clinical cell therapy, effectively reduce the equipment cost of cell biology research and clinical cell therapy, simplify the operation process, and improve the experimental efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of cell culture, specifically to a positioning component, a shaking mechanism, and a pipetting device for positioning the corners of a container. Background Technology

[0002] In cell biology research and clinical cell therapy, automated cell culture technology, with its advantages of standardization, high efficiency, and strong reproducibility, has become one of the core supporting technologies driving the development of related industries. In this complex culture system, the efficient interaction between cells and nutrients is crucial for ensuring normal cell proliferation and maintaining cell viability and functional stability. Among these steps, precisely seeding the cell suspension into a multi-well plate containing customized nutrient culture medium, and then using scientifically sound shaking techniques to achieve sufficient contact and uniform mixing between cells and nutrients, is one of the core steps determining the culture outcome.

[0003] However, since multi-well plates come in different specifications and models, and the dimensions of different specifications of multi-well plates vary significantly, different specifications of multi-well plates cannot be used with the same mixing equipment. It is necessary to match different specifications of multi-well plates with dedicated adapters or compatible mixing equipment. This not only significantly increases the purchase cost of mixing equipment, but also requires operators to frequently disassemble and replace the adapters or mixing equipment when switching between different specifications of multi-well plates. This not only prolongs the operation process and reduces the efficiency of experiments, but also seriously weakens the convenience and consistency of the cell culture process. Utility Model Content

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a positioning component for positioning the corner of a container is provided.

[0005] The positioning assembly for positioning the corner of a container includes a positioning block, a movable arm, and an elastic element. The positioning block has an abutment surface on the side facing the container to be positioned. One end of the movable arm is rotatably connected to the positioning block, while the other end is movably disposed. One end of the elastic element is connected to the positioning block, while the other end is fixedly disposed. The positioning block has a first position and a second position corresponding to the container to be positioned. The positioning block is movable between the first and second positions. When the movable arm is subjected to an external force, it moves the positioning block from the first position to the second position to create a space for accommodating the container to be positioned. After the external force is removed, the elastic element moves the positioning block from the second position back to the first position, so that the abutment surface abuts against the corner of the container to be positioned.

[0006] The positioning component of this invention allows the movable arm to move the positioning block from a first position to a second position under external force, thus creating a space for placing the container to be positioned. At this time, the elastic element connected to the positioning block is in a stretched state. After the external force is removed, the elastic element, under the action of elastic restoring force, moves the positioning block from the second position back to the first position until the contact surface of the positioning block abuts against the corner of the container to be positioned. This allows for the positioning of containers of different sizes. When applied to cell biology research and clinical cell therapy, the positioning component can be installed on a mixing device, making the mixing device compatible with multi-well plates of different sizes. This avoids the need for frequent changes of mixing devices to match multi-well plates of different sizes, effectively reducing equipment costs for cell biology research and clinical cell therapy, simplifying the operation process, improving experimental efficiency, and significantly enhancing the convenience and continuity of the cell culture process.

[0007] For example, the movable arm includes a first connecting arm and a second connecting arm that are rotatably connected. One end of the first connecting arm is movably disposed away from the second connecting arm, and one end of the second connecting arm is rotatably connected to a positioning block.

[0008] For example, the positioning component further includes a cylinder with a receiving cavity formed inside the cylinder, an elastic member located inside the receiving cavity, one end of the elastic member being connected to the bottom of the receiving cavity, and a portion of the structure of the positioning block passing through the receiving cavity and connected to the other end of the elastic member.

[0009] According to another aspect of the present invention, an oscillation mechanism is also provided, comprising a first motion mechanism, a second motion mechanism, a controller, a swing disk, and a positioning component as described above. The first motion mechanism is connected to the swing disk, the second motion mechanism is connected to the first motion mechanism, and the controller is electrically connected to both the first and second motion mechanisms. The controller is used to control the first motion mechanism to drive the swing disk to reciprocate along a first direction, and to control the second motion mechanism to drive the first motion mechanism and the swing disk to reciprocate along a second direction, or to simultaneously control the first and second motion mechanisms to drive the swing disk to move along a preset trajectory. The first direction is perpendicular to the second direction, and a positioning component is provided at at least one apex corner of the swing disk.

[0010] For example, the upper edge of the oscillating disk protrudes upward to form an abutment platform, which cooperates with the positioning block to form a space defining the container to be positioned.

[0011] For example, the upper wall of the oscillating disk is recessed downward to form a clearance area, which corresponds to the movable space of the positioning block between the first and second positions, and a gap is formed between the lower end of the positioning block and the clearance area.

[0012] For example, the first motion mechanism includes a first actuation component and a first block. The first block is connected to the first actuation component and the swing disk respectively. The first actuation component drives the swing disk to reciprocate along a first direction through the first block.

[0013] For example, the first motion mechanism further includes a first driven component, which includes a first plate and a first linear transmission mechanism disposed on the first plate. The first plate is disposed below the swing disk, and the swing disk is movably connected to the first plate through the first linear transmission mechanism. The first actuation component drives the first block to reciprocate relative to the first plate along the length direction of the first linear transmission mechanism.

[0014] For example, the second motion mechanism includes a second actuation component and a second block. The second block is connected to the second actuation component and the first plate, respectively. The second actuation component drives the first actuation component and the swing disk to reciprocate along the second direction through the second block.

[0015] For example, the second motion mechanism further includes a second driven component, which includes a second plate and a second linear transmission mechanism disposed on the second plate. The second plate is disposed below the first plate, and the first plate is movably connected to the second plate via the second linear transmission mechanism. The second actuation component drives the second block to reciprocate relative to the second plate along the length direction of the second linear transmission mechanism.

[0016] According to another aspect of the present invention, a pipetting device is also provided, including a mounting platform, a tilting motion component, and a oscillation mechanism as described above. The tilting motion component is disposed below the mounting platform, one end of the oscillation mechanism is rotatably connected to the mounting platform via a rotating shaft, and at least a portion of the structure of the tilting motion component passes through the mounting platform and is connected to the other end of the oscillation mechanism to drive one end of the oscillation mechanism to oscillate circumferentially around the rotating shaft.

[0017] For example, the tilting motion assembly includes a power output component, a driven block, and a support arm. The driven block is connected to the output end of the power output component. One end of the support arm is rotatably connected to the driven block, and the other end of the support arm is connected to the other end of the oscillation mechanism. Driven by the power output component, the driven block moves toward its location to drive the support arm to apply a supporting force to the oscillation mechanism.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model 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 utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0019] The above and other objects, features, and advantages of this utility model will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this utility model and form part of the specification. They are used together with the embodiments of this utility model to explain the utility model and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0020] Figure 1 A partial perspective view of an oscillation mechanism according to an exemplary embodiment of the present invention is shown;

[0021] Figure 2 A partial side view of an oscillation mechanism according to an exemplary embodiment of the present invention is shown;

[0022] Figure 3 A three-dimensional illustration of a pipetting device according to an exemplary embodiment of the present invention is shown. Figure 1 (Excluding mounting platform);

[0023] Figure 4 A three-dimensional illustration of a pipetting device according to an exemplary embodiment of the present invention is shown. Figure 2 (Excluding mounting platform and swing plate);

[0024] Figure 5 A side view of a pipetting device according to an exemplary embodiment of the present invention is shown;

[0025] Figure 6 A three-dimensional illustration of a pipetting device according to an exemplary embodiment of the present invention is shown. Figure 3 .

[0026] The components indicated by the reference numerals in the figures are as follows:

[0027] 1. Positioning block; 11. Abutment surface; 2. Movable arm; 21. First connecting arm; 22. Second connecting arm; 3. Cylinder; 31. Receiving cavity; 4. First motion mechanism; 41. First actuation assembly; 411. First driving member; 412. First protrusion; 413. First rotating member; 42. First block; 421. First groove; 4211. First sidewall; 4212. Second sidewall; 43. First driven assembly; 431. First plate; 432. First linear transmission mechanism; 5. Second motion mechanism; 51. Second actuation assembly; 511. Second driving member; 512. Second protrusion; 513. Second... 52. Rotating component; 52. Second block; 521. Second groove; 5211. Third side wall; 5212. Fourth side wall; 53. Second driven component; 531. Second plate; 532. Second linear transmission mechanism; 6. Swing disk; 61. Abutment platform; 62. Clearance area; 7. Mounting platform; 8. Tilting motion component; 81. Power output component; 82. Driven block; 83. Support arm; 831. First support arm; 832. Second support arm; 84. Base plate; 9. Rotating shaft; 10. Container to be positioned; A1. First direction; A2. Second direction; First linear motion direction A21; Second linear motion direction A22. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model more apparent, exemplary embodiments according to this utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, and not all embodiments of this utility model. It should be understood that this utility model is not limited to the exemplary embodiments described herein. Based on the embodiments of this utility model described herein, all other embodiments obtained by those skilled in the art without inventive effort should fall within the protection scope of this utility model.

[0029] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0030] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0031] One embodiment of this utility model provides a positioning component that can be installed on a mixing device, thereby enabling the mixing device to be compatible with perforated plates of different sizes. This avoids the need for frequent replacement of mixing devices that are compatible with perforated plates of different sizes. The positioning component according to an embodiment of this utility model will be described in detail below with reference to the accompanying drawings.

[0032] like Figures 1 to 3 As shown, the positioning assembly for positioning the corner of a container includes a positioning block 1, a movable arm 2, and an elastic element (not shown in the figure). The positioning block 1 has an abutment surface 11 on the side facing the container 10 to be positioned. One end of the movable arm 2 is rotatably connected to the positioning block 1, and the other end of the movable arm 2 is movably disposed. One end of the elastic element is connected to the positioning block 1, and the other end of the elastic element is fixedly disposed. The positioning block 1 has a first position and a second position corresponding to the container 10 to be positioned. The positioning block 1 is movable in the first and second positions. When the movable arm 2 is subjected to an external force, it moves the positioning block 1 from the first position to the second position to form a space for accommodating the container 10 to be positioned. After the external force is removed, the elastic element moves the positioning block 1 from the second position to the first position so that the abutment surface 11 abuts against the corner of the container 10 to be positioned.

[0033] The first position and the second position mentioned above can be respectively represented as different distances between the positioning block 1 and the container 10 to be positioned. The first position can be closer to the container 10 to be positioned than the second position.

[0034] Since the positioning block 1 can move between the first position and the second position, when containers 10 of different sizes are placed on the swing disk 6, the apex of the container 10 to be positioned and the positioning block 1 are located between the first position and the second position, so that they can be abutted by the abutting surface 11 of the positioning block 1. It can be understood that when the positioning block 1 is in the first position, the size of the container 10 to be positioned that can be placed on the swing disk 6 is the smallest. Similarly, when the positioning block 1 is in the second position, the size of the container 10 to be positioned that can be placed on the swing disk 6 is the largest.

[0035] One end of the aforementioned movable arm 2 can be hinged to the positioning block 1, and the other end of the movable arm 2 can be movably positioned. Thus, when the movable arm 2 is subjected to external force, it can move the positioning block 1 from a first position to a second position, forming a receiving space for placing the container 10 to be positioned. When the external force applied to the movable arm 2 is removed, the positioning block 1 can move back to the first position under the action of the elastic element to abut against the apex corner of the container 10 to be positioned, thereby achieving the positioning of the container 10. Of course, an external force can be applied to the movable arm 2 by using a driving structure or by manually pressing it; this application does not specifically limit this method.

[0036] When an external force is applied to the movable arm 2 to move the positioning block 1 to the second position, the other end of the elastic element is fixed, so the elastic element can be in a stretched state. After the external force applied to the movable arm 2 is removed, the elastic element can be changed from the stretched state to the natural state, thereby moving the positioning block 1 to the first position, and thus making the positioning block 1 have a resisting force applied to the container 10 to be positioned.

[0037] The aforementioned elastic element can be a spring or elastic rubber, etc. Of course, any device that can switch between a stretched state and a natural state after being subjected to force is within the scope of this application, and this application does not make any specific limitations on it.

[0038] The positioning component of this invention allows the movable arm 2 to move the positioning block 1 from a first position to a second position under external force, thereby creating a space for placing the container 10 to be positioned. At this time, the elastic element connected to the positioning block 1 is in a stretched state. After the external force is removed, the elastic element, under the action of elastic restoring force, moves the positioning block 1 from the second position back to the first position until the contact surface 11 of the positioning block 1 abuts against the corner of the container 10 to be positioned. This allows for the positioning of containers 10 of different sizes. When the positioning component is applied to cell biology research and clinical cell therapy, it can be installed on a mixing device, making the mixing device compatible with multi-well plates of different sizes. This avoids the need for frequent changes of mixing devices compatible with multi-well plates of different sizes, effectively reducing equipment costs for cell biology research and clinical cell therapy, simplifying the operation process, improving experimental efficiency, and significantly enhancing the convenience and continuity of the cell culture process.

[0039] In some embodiments, such as Figure 1 and Figure 2 As shown, the movable arm 2 includes a first connecting arm 21 and a second connecting arm 22 that are rotatably connected. The end of the first connecting arm 21 that is away from the second connecting arm 22 is movably set, and the end of the second connecting arm 22 is rotatably connected to the positioning block 1.

[0040] The end of the first connecting arm 21 away from the second connecting arm 22 can be movably set. Specifically, the end of the first connecting arm 21 away from the second connecting arm 22 can be rotatably connected to other components on the positioning assembly. In this way, by not rigidly constraining the first connecting arm 21, when an external force is applied to the first connecting arm 21, the first connecting arm 21 can drive the positioning block 1 to move after being subjected to the force.

[0041] The first connecting arm 21 and the second connecting arm 22 are hinged together. One movably disposed end of the first connecting arm 21 can be designated as the first end, the end of the first connecting arm 21 closest to the second connecting arm 22 can be designated as the second end, the end of the second connecting arm 22 rotatably connected to the positioning block 1 can be designated as the third end, and the end of the second connecting arm 22 closest to the first connecting arm 21 can be designated as the fourth end. The second end of the first connecting arm 21 can move downwards under external force, simultaneously causing the fourth end of the second connecting arm 22 to move downwards synchronously. Meanwhile, the third end of the second connecting arm 22 can cause the positioning block 1 to move away from the container 10 to be positioned.

[0042] In the above embodiment, by rotating the first connecting arm 21 and the second connecting arm 22, the positioning block 1 can be driven to move after being subjected to force, while the connection structure of the movable arm 2 is simplified, and the manufacturing and maintenance difficulty and cost of the movable arm 2 are reduced.

[0043] In some embodiments, such as Figure 1 and Figure 2 As shown, the positioning assembly also includes a cylinder 3, in which a receiving cavity 31 is formed. An elastic element is located in the receiving cavity 31, one end of which is connected to the bottom of the receiving cavity 31. A portion of the structure of the positioning block 1 passes through the receiving cavity 31 and is connected to the other end of the elastic element.

[0044] In the above embodiments, the elastic element can be disposed within the accommodating cavity 31 of the cylinder 3. On the one hand, the cylinder 3 can prevent impurities and corrosive liquids from contacting the elastic element, avoiding surface wear, corrosion, or adhesion. It can also prevent deformation or breakage caused by direct external forces such as collisions or compression, effectively improving the service life of the elastic element. On the other hand, the cylinder 3 can serve as an installation reference for the elastic element, facilitating precise positioning of the installation location. The cavity wall of the accommodating cavity 31 of the cylinder 3 can also guide the stretching of the elastic element, preventing lateral displacement, twisting, or bending when the elastic element is under tension, effectively ensuring the accuracy of the elastic deformation trajectory of the elastic element.

[0045] According to another aspect of this utility model, such as Figures 3 to 5As shown, an oscillation mechanism is also provided, including a first motion mechanism 4, a second motion mechanism 5, a controller, a swing disk 6, and a positioning component as described above. The first motion mechanism 4 is connected to the swing disk 6, and the second motion mechanism 5 is connected to the first motion mechanism 4. The controller is electrically connected to the first motion mechanism 4 and the second motion mechanism 5 respectively. The controller is used to control the first motion mechanism 4 to drive the swing disk 6 to reciprocate along a first direction A1, and to control the second motion mechanism 5 to drive the first motion mechanism 4 and the swing disk 6 to reciprocate along a second direction A2, or to simultaneously control the first motion mechanism 4 and the second motion mechanism 5 to drive the swing disk 6 to move along a preset trajectory. The first direction A1 is perpendicular to the second direction A2, and a positioning component is provided at at least one apex corner of the swing disk 6.

[0046] The swing disk 6 can be plate-shaped. The plate-shaped swing disk 6 can be used to support the container 10 to be positioned and fix the container 10 to be positioned on it. In this way, by driving the swing disk 6 to move, the container 10 to be positioned can be moved synchronously.

[0047] The first direction A1 can be specifically represented as the X-axis direction in a Cartesian coordinate system, and the second direction A2 can be specifically represented as the Y-axis direction in a Cartesian coordinate system. The first motion component can be activated independently to drive the swing disk 6 to reciprocate along the X-axis, and the second motion component can be activated independently to drive both the first motion component and the swing disk 6 to reciprocate along the Y-axis. Furthermore, by controlling the start and stop of the first and second motion components in coordination with the controller, the swing disk 6 can be made to move along a complex preset trajectory on the horizontal plane. It is understood that the aforementioned preset trajectory can be determined according to the user's actual needs.

[0048] 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.

[0049] The oscillation mechanism of this invention features a first motion component that drives the oscillating disk 6 to reciprocate along a first direction A1, and a second motion component that drives both the first motion component and the oscillating disk 6 to reciprocate along a second direction A2. Through the cooperation of the first and second motion components, not only can the linear movement of the container 10 to be positioned on the oscillating disk 6 be achieved, but the container 10 can also be moved along a preset trajectory. When applied to cell biology research and clinical cell culture, the oscillation mechanism can inoculate cell suspensions into well plates on the oscillating disk 6. The oscillation mechanism allows the well plates to move along a preset trajectory, ensuring thorough mixing between the cells and the nutrients in the well plates. This guarantees not only the mixing intensity and uniformity but also the consistency of cell growth rate and morphology, significantly improving the effectiveness and efficiency of cell research and culture. Furthermore, at least one apex of the oscillating disk 6 can be equipped with a positioning component, allowing the oscillating disk 6 to accommodate well plates of different sizes, effectively enhancing the versatility and practicality of the oscillation mechanism.

[0050] In some embodiments, such as Figure 1 and Figure 2 As shown, the upper edge of the swing disk 6 protrudes upward to form an abutment platform 61, which cooperates with the positioning block 1 to form a space that defines the container 10 to be positioned.

[0051] The aforementioned abutment platform 61 can be elongated. Multiple elongated abutment platforms 61 can be arranged along the outer edge of the upper surface of the swing disk 6. There can be multiple abutment platforms 61. The space enclosed by the multiple abutment platforms 61 can be adapted to the outer contour of the container 10 to be positioned. When the container 10 to be positioned is placed on the swing disk 6, the outer wall of the container 10 to be positioned can abut against the abutment platform 61, thereby firmly fixing the container 10 to be positioned on the swing disk 6.

[0052] In the above embodiments, the abutment platform 61 can play a good limiting role for the container 10 to be positioned, preventing the container 10 to be positioned from tipping over or falling when the swing disk 6 drives the container 10 to be positioned to move, thus effectively improving the safety and reliability of the oscillation mechanism.

[0053] In some embodiments, such as Figure 1 As shown, the upper wall of the swing disk 6 is recessed downwards to form a clearance area 62. The clearance area 62 is set in the movable space between the first position and the second position of the positioning block 1, and a gap is formed between the lower end of the positioning block 1 and the clearance area 62. That is to say, the clearance area 62 corresponds to the movable space between the first position and the second position of the positioning hole 1.

[0054] In the above embodiments, since the positioning block 1 is easily affected by factors such as mold precision and material shrinkage rate during production, dimensional tolerances are inevitable. These tolerances can easily cause the lower end of the positioning block 1 to collide with the swing disk 6, resulting in scratches on the surface of the swing disk 6, wear on the edges and corners of the positioning block 1, and even deformation of the positioning block 1, thereby affecting the subsequent contact accuracy between the positioning block 1 and the container 10 to be positioned. However, by setting the clearance area 62 on the swing disk 6 and forming a gap between the lower end of the positioning block 1 and the clearance area 62, the dimensional tolerances of the positioning block 1 can be effectively absorbed, improving the safety and reliability of the use of the swing disk 6 and the positioning block 1.

[0055] In some embodiments, such as Figures 3 to 5 As shown, the first motion mechanism 4 includes a first actuation component 41 and a first block 42. The first block 42 is connected to the first actuation component 41 and the swing disk 6 respectively. The first actuation component 41 drives the swing disk 6 to reciprocate along the first direction A1 through the first block 42.

[0056] One side of the first block 42 can be connected to the bottom of the swing disk 6, and the other side of the first block 42 can be connected to the drive end of the first actuation component 41. The first actuation component 41 can drive the first block 42 to move, thereby driving the swing disk 6 to move synchronously. The shape of the first block 42 can be rectangular, square, or circular, etc., and this application does not make a specific limitation in this regard.

[0057] In the above embodiment, the first actuation component 41 can drive the swing disk 6 to reciprocate along the first direction A1 through the first block 42. In this way, while simplifying the structure of the first motion component, it also ensures that the driving force generated by the first actuation component 41 can be efficiently transmitted to the swing disk 6, effectively improving the driving efficiency of the first motion component.

[0058] In some embodiments, such as Figures 3 to 5 As shown, the first motion mechanism 4 also includes a first driven component 43. The first driven component 43 includes a first plate 431 and a first linear transmission mechanism 432 disposed on the first plate 431. The first plate 431 is disposed below the swing disk 6. The swing disk 6 is movably connected to the first plate 431 through the first linear transmission mechanism 432. The first actuation component 41 drives the first block 42 to reciprocate relative to the first plate 431 along the length direction of the first linear transmission mechanism 432.

[0059] The aforementioned first linear transmission mechanism 432 can be disposed between the swing disk 6 and the first plate 431. The swing disk 6 can reciprocate relative to the first plate 431 along the first direction A1 through the first linear transmission mechanism 432.

[0060] The aforementioned first linear transmission mechanism 432 can be two, and the two first linear transmission mechanisms 432 can be spaced apart on both sides of the first block 42. Through the two spaced first linear transmission mechanisms 432, the weight of the container 10 to be positioned and the swing disk 6 can be evenly distributed to the two first linear transmission mechanisms 432, avoiding deformation or damage to a single first linear transmission mechanism 432 due to concentrated force. This reduces wear on a single first linear transmission mechanism 432 and extends its service life. Furthermore, the spaced first linear transmission mechanisms 432 can prevent the container 10 to be positioned on the swing disk 6 from tilting or wobbling when the first actuation component 41 drives the swing disk 6 to reciprocate along the first direction A1, effectively ensuring the stable and smooth movement of the container 10 to be positioned.

[0061] The aforementioned first linear transmission mechanism 432 may specifically include a slide rail and a slider adapted to the slide rail. A slide rail may be provided on one of the first plate 431 and the swing disk 6, and a slider may be provided on the other of the first plate 431 and the swing disk 6. Figure 4 For example, the slide rail can be set on the first plate 431 along the first direction A1, and the slider can be set on the bottom of the swing disk 6. It can be understood that the length direction of the first linear transmission mechanism 432 mentioned above can be parallel to the first direction A1.

[0062] The first actuator 41 may specifically include a first drive member 411 and a first protrusion 412. The first drive member 411 is connected to the first plate 431. The output shaft of the first drive member 411 passes through one side of the first protrusion 412. A first rotating member 413 is provided on the side of the first protrusion 412 away from the first drive member 411. The rotation center of the first rotating member 413 is eccentrically set relative to the rotation center of the output shaft of the first drive member 411.

[0063] The first protrusion 412 can be cylindrical. The cylindrical first protrusion 412 can be sleeved on the output shaft of the first driving member 411. The first protrusion 412 can rotate circumferentially around the output shaft of the first driving member 411 under the drive of the first driving member 411.

[0064] The length direction of the first block 42 can be parallel to the second direction A2. A first groove 421 can be provided on the first block 42 along its length direction. A first rotating member 413 can be inserted into the first groove 421. The first rotating member 413 can apply force to the two groove walls in the first groove 421 that are parallel to the second direction A2, so as to drive the swing disk 6 to reciprocate along the first direction A1.

[0065] Specifically, the first groove 421 may have a first sidewall 4211 and a second sidewall 4212. The first rotating member 413 may be slidably disposed in the first groove 421. In one embodiment of this application, the forward and reverse rotation of the first driving member 411 can be used to make the first block 42 achieve a single reciprocating motion along the first direction A1. Specifically, the first driving member 411 can rotate clockwise, driving the first protrusion 412 and the first rotating member 413 on the first protrusion 412 to rotate clockwise synchronously. At this time, the first rotating member 413 can abut against the first sidewall 4211 of the first groove 421, and push the first block 42 to move towards the power output member 81 (the power output member 81 will be described in detail below, and will not be elaborated on here). Then, the first driving member 411 can rotate counterclockwise, driving the first protrusion 412 and the first rotating member 413 on the first protrusion 412 to rotate counterclockwise synchronously. At this time, the first rotating member 413 can abut against the second sidewall 4212 of the first groove 421, and push the first block 42 to move away from the power output member 81. In this way, by switching the forward and reverse directions of the first driving member 411, the reciprocating motion of the first block 42 along the first direction A1 can be realized. In another embodiment of this application, the first drive member 411 can be continuously rotated in one direction to enable the first block 42 to achieve continuous reciprocating motion. Specifically, the first drive member 411 can rotate clockwise, driving the first protrusion 412 and the first rotating member 413 on the first protrusion 412 to rotate clockwise synchronously. At this time, the first rotating member 413 can abut against the first sidewall 4211 of the first groove 421 and push the first block 42 towards the power output member 81. After the first rotating member 413 rotates clockwise until it disengages from the first sidewall 4211, it can continue to rotate clockwise until it abuts against the second sidewall 4212 and pushes the first block 42 away from the power output member 81. Thus, through the continuous unidirectional rotation of the first drive member 411, the reciprocating motion of the first block 42 along the first direction A1 can be achieved.

[0066] The first groove 421 can be elongated, and the length direction of the first groove 421 can be perpendicular to the first direction A1. The first sidewall 4211 and the second sidewall 4212 can be respectively represented as the two opposing inner sidewalls inside the elongated first groove 421.

[0067] The first rotating member 413 can be eccentrically positioned relative to the output shaft of the first driving member 411, allowing it to have a larger rotation range relative to the first protrusion 412. This enables the first block 42 to move over a greater range, achieving a larger transmission ratio within a limited space. This results in a more compact structure for the entire first motion assembly, effectively improving its layout rationality. Furthermore, the relative position between the first rotating member 413 and the output shaft of the first driving member 411 can be adjusted according to actual usage needs, achieving different transmission ratios and thus allowing the first block 42 to move different distances.

[0068] The shape of the first rotating member 413 can be cylindrical, elongated, etc., preferably cylindrical, so as to improve the stability and smoothness of the first rotating member 413 during movement.

[0069] The first rotating member 413 and the first protrusion 412 can be detachably connected or integrally formed. The detachable connection can include plug-in connection or threaded connection, etc., and this application does not make specific limitations in this regard.

[0070] In the above embodiment, the first plate 431 can serve as a carrier to mount components such as the first block 42 and the first linear transmission mechanism 432. When the first actuation component 41 drives the first block 42 to move, the swing disk 6 connected to the first block 42 can reciprocate along the first linear transmission mechanism 432. On the one hand, the first linear transmission mechanism 432 can have a guiding function so that the swing disk 6 can move along the first direction A1 under the drive. On the other hand, the first linear transmission mechanism 432 can ensure the smooth movement of the swing disk 6 and ensure the driving efficiency of the first actuation component 41.

[0071] In some embodiments, such as Figures 3 to 5 As shown, the second motion mechanism 5 includes a second actuation component 51 and a second block 52. The second block 52 is connected to the second actuation component 51 and the first plate 431 respectively. The second actuation component 51 drives the first actuation component 41 and the swing disk 6 to reciprocate along the second direction A2 through the second block 52.

[0072] The second block 52 can be connected to the upper part of the first plate 431 and also to the drive end of the second actuation component 51. The second actuation component 51 can drive the second block 52 to move, thereby driving the first plate 431 and the swing disk 6 connected to the first plate 431 to move synchronously. The shape of the second block 52 can be rectangular, square, or circular, etc., and this application does not make a specific limitation in this regard.

[0073] In the above embodiment, the second actuation component 51 can drive the first plate 431 and the swing disk 6 to reciprocate along the second direction A2 through the second block 52. In this way, while simplifying the structure of the second motion component, it also ensures that the driving force generated by the second actuation component 51 can be efficiently transmitted to the swing disk 6, effectively improving the driving efficiency of the second motion component.

[0074] In some embodiments, such as Figures 3 to 5 As shown, the second motion mechanism 5 also includes a second driven component 53. The second driven component 53 includes a second plate 531 and a second linear transmission mechanism 532 disposed on the second plate 531. The second plate 531 is disposed below the first plate 431. The first plate 431 is movably connected to the second plate 531 through the second linear transmission mechanism 532. The second actuation component 51 drives the second block 52 to reciprocate relative to the second plate 531 along the length direction of the second linear transmission mechanism 532.

[0075] The aforementioned second linear transmission mechanism 532 can be disposed between the first plate 431 and the second plate 531, and the first plate 431 can reciprocate relative to the second plate 531 along the second direction A2 through the second linear transmission mechanism 532.

[0076] The aforementioned second linear transmission mechanism 532 can be two, and the two second linear transmission mechanisms 532 can be spaced apart on both sides of the second block 52. Through the two spaced second linear transmission mechanisms 532, the weight of the first plate 431, the swing disk 6, and the container 10 to be positioned can be evenly distributed to the two second linear transmission mechanisms 532, avoiding deformation or damage to a single second linear transmission mechanism 532 due to concentrated force. This reduces wear on a single second linear transmission mechanism 532 and extends its service life. Furthermore, the spaced second linear transmission mechanisms 532 can prevent the container 10 to be positioned on the swing disk 6 from tilting or wobbling when the second actuation component 51 drives the swing disk 6 to reciprocate along the second direction A2, effectively ensuring the stable and smooth movement of the container 10 to be positioned.

[0077] The aforementioned second linear transmission mechanism 532 may specifically include a slide rail and a slider adapted to the slide rail. A slide rail may be provided on one of the first plate 431 and the second plate 531, and a slider may be provided on the other of the first plate 431 and the second plate 531. Figure 4 For example, the slide rail can be set on the second plate 531 along the second direction A2, and the slider can be set at the bottom of the first plate 431. It can be understood that the length direction of the second linear transmission mechanism 532 mentioned above can be parallel to the second direction A2.

[0078] The second actuation component 51 may specifically include a second driving member 511 and a second protrusion 512. The second driving member 511 is connected to the second plate 531. The output shaft of the second driving member 511 passes through one side of the second protrusion 512. A second rotating member 513 is provided on the side of the second protrusion 512 away from the second driving member 511. The rotation center of the second rotating member 513 is eccentrically set relative to the rotation center of the output shaft of the second driving member 511.

[0079] The second protrusion 512 can be cylindrical. The cylindrical second protrusion 512 can be sleeved on the output shaft of the second drive member 511. The second protrusion 512 can rotate circumferentially around the output shaft of the second drive member 511 under the drive of the second drive member 511.

[0080] The length direction of the second block 52 can be parallel to the first direction A1. A second groove 521 can be provided on the second block 52 along its length direction. The second rotating member 513 can pass through the second groove 521. The second rotating member 513 can apply force to the two groove walls in the second groove 521 that are parallel to the first direction A1, so as to drive the swing disk 6 to reciprocate along the second direction A2.

[0081] Specifically, the second groove 521 may have a third sidewall 5211 and a fourth sidewall 5212, and the second rotating member 513 may be slidably disposed within the second groove 521. For example... Figure 4As shown, the second direction A2 may include the first linear motion direction A21 and the second linear motion direction A22 that are opposite to each other. In one example of this application, the forward and reverse switching of the second drive member 511 can be used to make the second block 52 achieve a single reciprocating motion along the second direction A2. Specifically, the second driving member 511 can rotate clockwise, driving the second protrusion 512 and the second rotating member 513 on the second protrusion 512 to rotate clockwise synchronously. At this time, the second rotating member 513 can abut against the third sidewall 5211 of the second groove 521, pushing the second block 52 to move along the first linear motion direction A21. Then, the second driving member 511 can rotate counterclockwise, driving the second protrusion 512 and the second rotating member 513 on the second protrusion 512 to rotate counterclockwise synchronously. At this time, the second rotating member 513 can abut against the fourth sidewall 5212 of the second groove 521, pushing the second block 52 to move along the second linear motion direction A22. Thus, by switching the forward and reverse directions of the second driving member 511, the reciprocating motion of the second block 52 along the second direction A2 can be realized. In another embodiment of this application, the continuous unidirectional rotation of the second driving member 511 can be used to make the second block 52 achieve continuous reciprocating motion. Specifically, the second driving member 511 can rotate clockwise, driving the second protrusion 512 and the second rotating member 513 on the second protrusion 512 to rotate clockwise synchronously. At this time, the second rotating member 513 can abut against the third side wall 5211 of the second groove 521 and push the second block 52 to move along the first linear motion direction A21. After the second rotating member 513 rotates clockwise until it disengages from the third side wall 5211, it can continue to rotate clockwise until it abuts against the fourth side wall 5212 and push the second block 52 to move along the second linear motion direction A22. In this way, through the continuous unidirectional rotation of the second driving member 511, the reciprocating motion of the second block 52 along the second direction A2 can be realized.

[0082] The shape of the second groove 521 can be elongated, and the length direction of the second groove 521 can be perpendicular to the second direction A2. The third side wall 5211 and the fourth side wall 5212 can be respectively represented as the two opposing inner side walls inside the elongated second groove 521.

[0083] The second rotating member 513 can be eccentrically positioned relative to the output shaft of the second driving member 511, allowing it to have a larger rotation range relative to the second protrusion 512. This enables the second block 52 to move over a greater range, achieving a larger transmission ratio within a limited space. This results in a more compact structure and improved layout rationality of the entire second motion assembly. Furthermore, the relative position between the second rotating member 513 and the output shaft of the second driving member 511 can be adjusted to achieve different transmission ratios, thereby allowing the second block 52 to move different distances.

[0084] The shape of the second rotating member 513 can be cylindrical, elongated, etc., preferably cylindrical, so as to improve the stability and smoothness of the second rotating member 513 during movement.

[0085] The second rotating member 513 and the second protrusion 512 can be detachably connected or integrally formed. The detachable connection can include plug-in connection or threaded connection, etc., and this application does not make specific limitations in this regard.

[0086] In the above embodiment, the second plate 531 can serve as a carrier to mount components such as the first block 42 and the second linear transmission mechanism 532. When the second actuation component 51 drives the second block 52 to move, the swing disk 6 connected to the second block 52 can reciprocate along the second linear transmission mechanism 532. On the one hand, the second linear transmission mechanism 532 can have a guiding function so that the swing disk 6 can move along the second direction A2 under the drive. On the other hand, the second linear transmission mechanism 532 can ensure the smooth movement of the swing disk 6 and ensure the driving efficiency of the first actuation component 41.

[0087] According to another aspect of this utility model, such as Figure 5 and Figure 6 As shown, a pipetting device is also provided, including a mounting platform 7, a tilting motion component 8, and an oscillation mechanism as described above. The tilting motion component 8 is disposed below the mounting platform 7. One end of the oscillation mechanism is rotatably connected to the mounting platform 7 via a rotating shaft 9. At least a portion of the structure of the tilting motion component 8 passes through the mounting platform 7 and is connected to the other end of the oscillation mechanism to drive one end of the oscillation mechanism to oscillate circumferentially around the rotating shaft 9.

[0088] Specifically, one end of the second connecting plate in the oscillation mechanism can be rotatably connected to the mounting platform 7 via the rotating shaft 9. The tilting motion component 8 can pass through the mounting platform 7 and be connected to the bottom of the other end of the second connecting plate. When the tilting motion component 8 applies a force to the second connecting plate, the second connecting plate can drive the first motion component, the second motion component, and the swing disk 6 connected to it to swing around the rotating shaft 9.

[0089] In the above embodiments, the tilting motion component 8 can drive the oscillation mechanism to swing around the rotation axis 9 in a circumferential direction. This allows the oscillation mechanism to not only move the container 10 to be positioned in a horizontal plane, but also to perform a three-dimensional composite motion. When the pipetting device is applied to cell biology research and clinical cell culture, it can make the container 10 to be positioned better mixed in a tilted state, thereby further ensuring that the cells and nutrients in the multi-well plate are fully mixed, significantly improving the effect and efficiency of cell research and culture.

[0090] In some embodiments, such as Figures 3 to 5 As shown, the tilting motion assembly 8 includes a power output component 81, a driven block 82, and a support arm 83. The driven block 82 is connected to the output end of the power output component 81. One end of the support arm 83 is rotatably connected to the driven block 82, and the other end of the support arm 83 is connected to the other end of the oscillation mechanism. Under the drive of the power output component 81, the driven block 82 moves towards its location to drive the support arm 83 to apply a supporting force to the oscillation mechanism.

[0091] The aforementioned tilting motion assembly 8 may further include a base plate 84. A power output component 81 can be fixedly mounted on the base plate 84, and a driven block 82 can be sleeved on the output shaft of the power output component 81 and slidably connected to the base plate 84. When the output shaft of the power output component 81 rotates, the driven block 82 can move towards or away from the power output component 81. Specifically, the output shaft of the power output component 81 can be a lead screw, and the driven block 82 can be a nut adapted to the lead screw.

[0092] The aforementioned support arm 83 may include a first arm 831 and a second arm 832 hinged together. The end of the first arm 831 away from the second arm 832 may be hinged to the driven block 82, and the end of the second arm 832 away from the first arm 831 may be fixedly connected to the second plate 531. When the power output member 81 drives the driven block 82 to move towards the direction of the power output member 81, the driven block 82 may sequentially drive the first arm 831 and the second arm 832, thereby applying a supporting force to the second plate 531. It can be understood that the tilt angle of the second plate 531 may correspond to the distance between the power output member 81 and the driven block 82. That is, when the distance between the power output member 81 and the driven block 82 is at its maximum, the second plate 531 may be in a horizontal state; conversely, when the distance between the power output member 81 and the driven block 82 is at its minimum, the second plate 531 may be in a maximum tilt angle.

[0093] The aforementioned tilting motion component 8 may also include a slide rail and a slider adapted to the slide rail. The slide rail may be set on the base plate 84 along the movement direction of the driven block 82. The driven component may be slidably connected to the slide rail via the slider. This not only effectively improves the stability and smoothness of the movement of the driven block 82, but also reduces the friction between the driven block 82 and the base plate 84, thereby improving the driving efficiency of the power output component 81.

[0094] In the above embodiment, the power output component 81 can drive the support arm 83 to move through the driven block 82, and then the second plate 531 of the oscillation mechanism can be driven to rotate around the rotation axis 9 through the support arm 83. This not only realizes the rotation of the oscillation mechanism, but also simplifies the connection structure of the tilting motion component 8 and reduces the manufacturing difficulty and cost of the tilting motion component 8.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] This utility model 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 utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning component for positioning the corners of a container, characterized in that, include: A positioning block, wherein the side of the positioning block facing the container to be positioned has an abutment surface; A movable arm, one end of which is rotatably connected to the positioning block, and the other end of which is movably disposed; An elastic element, one end of which is connected to the positioning block, and the other end of which is fixedly disposed; The positioning block has a first position and a second position corresponding to the container to be positioned. The positioning block is movable between the first position and the second position. The movable arm is driven by an external force to move the positioning block from the first position to the second position to form a space for accommodating the container to be positioned. After the external force is removed, the elastic element drives the positioning block to move from the second position to the first position so that the abutting surface abuts against the corner of the container to be positioned.

2. The positioning component according to claim 1, characterized in that, The movable arm includes a first connecting arm and a second connecting arm that are rotatably connected. The end of the first connecting arm that is away from the second connecting arm is movably disposed, and the end of the second connecting arm is rotatably connected to the positioning block.

3. The positioning component according to claim 1, characterized in that, The positioning component also includes a cylindrical body with a receiving cavity formed inside the cylindrical body. The elastic element is located inside the receiving cavity, with one end of the elastic element connected to the bottom of the receiving cavity. A portion of the structure of the positioning block passes through the receiving cavity and is connected to the other end of the elastic element.

4. An oscillation mechanism, characterized in that, The device includes a first motion mechanism, a second motion mechanism, a controller, a swing disk, and a positioning component as described in any one of claims 1 to 3. The first motion mechanism is connected to the swing disk, the second motion mechanism is connected to the first motion mechanism, and the controller is electrically connected to both the first and second motion mechanisms. The controller is used to control the first motion mechanism to drive the swing disk to reciprocate along a first direction, and to control the second motion mechanism to drive both the first motion mechanism and the swing disk to reciprocate along a second direction, or to simultaneously control both the first and second motion mechanisms to drive the swing disk to move along a preset trajectory. The first direction is perpendicular to the second direction, and the positioning component is provided at at least one apex corner of the swing disk.

5. The oscillation mechanism according to claim 4, characterized in that, The upper edge of the swing disk protrudes upward to form a contact platform, which cooperates with the positioning block to form a space that defines the container to be positioned.

6. The oscillation mechanism according to claim 4, characterized in that, The upper wall of the swing disk is recessed downward to form a clearance area, which corresponds to the movable space of the positioning block between the first position and the second position. A gap is formed between the lower end of the positioning block and the clearance area.

7. The oscillation mechanism according to claim 4, characterized in that, The first motion mechanism includes a first actuation component and a first block. The first block is connected to the first actuation component and the swing disk, respectively. The first actuation component drives the swing disk to reciprocate along the first direction through the first block.

8. The oscillation mechanism according to claim 7, characterized in that, The first motion mechanism further includes a first driven component, which includes a first plate and a first linear transmission mechanism disposed on the first plate. The first plate is disposed below the swing disk, and the swing disk is movably connected to the first plate through the first linear transmission mechanism. The first actuation component drives the first block to reciprocate relative to the first plate along the length direction of the first linear transmission mechanism.

9. The oscillation mechanism according to claim 8, characterized in that, The second motion mechanism includes a second actuation component and a second block. The second block is connected to the second actuation component and the first plate, respectively. The second actuation component drives the first actuation component and the swing disk to reciprocate along the second direction through the second block.

10. The oscillation mechanism according to claim 9, characterized in that, The second motion mechanism further includes a second driven component, which includes a second plate and a second linear transmission mechanism disposed on the second plate. The second plate is disposed below the first plate, and the first plate is movably connected to the second plate through the second linear transmission mechanism. The second actuation component drives the second block to reciprocate relative to the second plate along the length direction of the second linear transmission mechanism.

11. A pipetting device, characterized in that, The device includes a mounting platform, a tilting motion assembly, and an oscillation mechanism as described in any one of claims 4 to 10. The tilting motion assembly is disposed below the mounting platform. One end of the oscillation mechanism is rotatably connected to the mounting platform via a rotating shaft. At least a portion of the structure of the tilting motion assembly passes through the mounting platform and is connected to the other end of the oscillation mechanism to drive one end of the oscillation mechanism to oscillate circumferentially around the rotating shaft.

12. The pipetting apparatus according to claim 11, characterized in that, The tilting motion assembly includes a power output component, a driven block, and a support arm. The driven block is connected to the output end of the power output component. One end of the support arm is rotatably connected to the driven block, and the other end of the support arm is connected to the other end of the oscillation mechanism. Under the drive of the power output component, the driven block moves towards its location to drive the support arm to apply a supporting force to the oscillation mechanism.

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