Test microplate rotating carrier device
Through modular design and technical means such as harmonic reducers, the problems of space utilization and rotational stability of the microplate carrier device were solved, and efficient and accurate reagent distribution in the automated analyzer was achieved, improving the accuracy of test results and experimental efficiency.
Patent Information
- Application Number
- CN202422893665.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-09-13
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing microplate carrier devices take up a lot of space in automated analyzers, cannot accommodate multiple test microplates at the same time, and have unstable rotation, resulting in large errors in reagent distribution and affecting the accuracy of test results.
The modular design of the experimental microplate rotating carrier device includes a base, a tray and a drive mechanism. The tray rotates through an independent drive mechanism, and a harmonic reducer and sensor assembly are used to ensure the stability and accuracy of the rotation. The arc groove and light-blocking rod are combined to limit the rotation range, and a buffer is used to reduce collision noise.
It achieves efficient utilization within limited space, accommodates more test microplates, improves rotation stability and accuracy, reduces reagent distribution errors, reduces energy consumption, and improves experimental efficiency.
Smart Images
Figure CN223485997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a rotating carrier device for experimental microplates, belonging to the technical field of experimental equipment. Background Technology
[0002] In automated immunological testing, blood typing, and other experiments, test microplates (such as 96-well rigid U-shaped microplates) are used to hold blood samples and other reactants. Taking the ABO and Rh blood typing positive typing test as an example, the operation procedure includes: First, the blood sample to be tested is individually distributed into each well of the test microplate. These microplates are then fixed to the working platform of the automated analyzer by a microplate carrier device to ensure their stability and accuracy during the testing process. Next, the built-in pipetting channel of the automated analyzer accurately draws the reagents required for blood typing from the reagent container, such as anti-A serum, anti-B serum, and anti-Rh(D) serum. After sampling, the pipetting channel distributes an appropriate amount of blood typing reagent into the corresponding wells in the test microplate according to a preset program. Finally, by observing whether the red blood cells agglutinate, the ABO and Rh blood types of the blood sample can be accurately determined.
[0003] While existing microplate carriers meet the requirement of fixing microplates on the automated analyzer platform to a certain extent, several problems remain in practical applications. During testing, the microplates need to be rotated to accommodate sample addition from different directions, thus optimizing reagent dispensing speed and reducing the need for disposable consumables, such as disposable tippers. However, existing automated analyzer platforms have limited space, and existing rotatable microplate carriers generally occupy a large area, accommodating only two microplates at a time. This not only limits the number of samples processed simultaneously but also necessitates frequent microplate replacement by the automated analyzer's transfer device, increasing unnecessary steps and time costs, and significantly extending the overall analysis process. Furthermore, the dense distribution of wells on the microplates necessitates extremely strict requirements for sample addition error (typically within 0.1 mm). This requires the microplate carrier to possess extremely high stability and precision when rotating the microplates to ensure accurate reagent addition to designated wells and precise plate gripping by the transfer device regardless of rotation position. However, existing microplate carrier devices often suffer from problems such as shaking and inaccurate positioning during rotation, leading to reagents being dispensed into the wrong well or failure to pick up the plate; this seriously affects the accuracy of the test results and increases the risk of test failure.
[0004] Therefore, there is a need for a microplate carrier device that can efficiently utilize space within a limited workspace, accommodate more experimental microplates for parallel operation, and possess excellent rotational stability and accuracy.
[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present invention, and therefore may include information that does not constitute prior art. Utility Model Content
[0006] The purpose of this utility model is to provide a new technical solution to improve or solve the technical problems existing in the prior art as described above.
[0007] The technical solution provided by this utility model is as follows: A test microplate rotating carrier device includes a base, a tray and a drive mechanism. The base is provided with a top plate, and the top plate is provided with shaft holes. The number of the tray, the drive mechanism and the shaft holes are matched and there are several of each. The drive mechanism is installed below the top plate, the tray is installed above the top plate, and the drive mechanism is drivenly connected to the tray.
[0008] Compared with the prior art, the technical solution provided by this utility model has the following advantages: The experimental microplate rotating carrier device of this utility model can ensure that the tray rotates stably and accurately. The number of trays and drive mechanisms are matched and there are several of them. This modular design allows the device to be flexibly configured according to actual test requirements. Each tray is connected to the tray through an independent drive mechanism. The output shaft of the drive mechanism passes through the shaft hole and is connected to the tray. Each tray can work independently or some trays can be controlled to rotate together by the control system, which ensures the accuracy of the rotation action.
[0009] Based on the above technical solution, the present invention can be further improved as follows:
[0010] Furthermore, the drive mechanism includes a motor and a harmonic reducer, the harmonic reducer being mounted on the output shaft of the motor, and the tray being mounted on the harmonic reducer.
[0011] The beneficial effects of adopting the above-mentioned further solution are as follows: First, the harmonic reducer has the characteristic of zero backlash, which can ensure smooth rotation of the tray. At the same time, the harmonic reducer can also reduce the torque requirement of the motor, allowing the use of a small torque motor, thereby improving energy utilization efficiency and reducing energy consumption. Second, the motor can be a motor product that integrates the motor drive circuit and the control circuit. In terms of control, a force control mode is adopted. When the system encounters an obstacle, it will automatically stop and maintain a stable torque static state. After the fault is cleared, it will resume its original working state.
[0012] Furthermore, it also includes a sensor assembly for detecting whether the tray has rotated into position, and the sensor assembly is provided at both the starting end and the ending end of the rotation of the tray.
[0013] The beneficial effect of adopting the above-mentioned further solution is that the sensor at the starting end of the rotation of the tray is mainly used to detect whether the tray is at the starting position of rotation, and the sensor assembly at the rotating end of the tray is used to detect whether the tray has rotated to the ending position. When the tray rotates to the ending position by a preset angle, the sensor assembly at the rotating end of the tray will send a signal, and the control system will then control the drive mechanism to stop running.
[0014] Furthermore, the sensor assembly includes a light-blocking rod and an optical coupler sensor. The light-blocking rod is mounted on the tray, and the optical coupler sensor is mounted on the top plate, or the light-blocking rod is mounted on the top plate, and the optical coupler sensor is mounted on the tray. The optical coupler sensor is used to determine whether the tray has rotated into position by detecting the position of the light-blocking rod.
[0015] The beneficial effect of adopting the above-mentioned further solution is that when the tray is rotated to a preset position, the light-blocking rod can block or release the optical path of the optocoupler sensor, thereby triggering a corresponding signal.
[0016] Furthermore, each of the shaft holes is provided with an arc-shaped groove on its side. The optical coupler sensor is disposed at the end of the arc-shaped groove. One end of the light-blocking rod is fixed on the tray, and the other end extends into the corresponding arc-shaped groove. When the tray rotates, it can drive the light-blocking rod to move in the arc-shaped groove. The light-blocking rod can move along the arc-shaped groove to the photosensitive groove of the optical coupler sensor to block the light path of the optical coupler sensor.
[0017] The beneficial effect of adopting the above-mentioned further solution is that the arc-shaped groove on the top plate, in conjunction with the light-blocking rod under the tray, not only provides a stable rotation track for the tray, but also limits the rotation range of the tray, preventing the tray from shifting during rotation. When the light-blocking rod moves to one end of the arc-shaped groove, it will block the light of the optocoupler sensor, thereby triggering the output signal of the optocoupler sensor.
[0018] Furthermore, buffers are provided at both ends of the arc-shaped groove to provide buffering force when the light-blocking rod reaches both ends of the arc-shaped groove, preventing the light-blocking rod from having a hard collision with the inner wall of the arc-shaped groove.
[0019] The beneficial effect of adopting the above-mentioned further solution is that when the tray rotates to the limit position under the drive of the motor and the light-blocking rod touches the two ends of the arc groove, the buffer can play an immediate role, providing a gentle buffering force for the light-blocking rod, effectively avoiding hard collision between the light-blocking rod and the inner wall of the arc groove, reducing the noise and vibration caused by the impact, and further protecting the precision components inside the device from damage.
[0020] Furthermore, the buffer is a torsion spring, which includes a torsion arm that is abutted at the end of the arc-shaped groove.
[0021] Furthermore, several of the trays are arranged sequentially at intervals on the top plate, and the adjacent distance between the trays is sufficient to ensure that two trays spaced apart from each other can rotate simultaneously.
[0022] The beneficial effect of adopting the above-mentioned further solution is that the present invention fully considers the actual situation of limited space on the working platform of the automated analyzer. By reasonably adjusting the spacing between the trays, two trays that are spaced apart from each other can be rotated at the same time, which can optimize the experimental workflow, improve experimental efficiency and save experimental space.
[0023] Furthermore, it also includes a control system, which can control two mutually spaced trays to rotate or reset simultaneously, or the control system can control adjacent trays to rotate or reset sequentially, or the control system can control any one of the trays to rotate or reset individually, and the trays can rotate in the range of 0° to 90°.
[0024] Furthermore, when the outermost tray is rotated 90°, one side edge of the tray extends beyond the corresponding side edge of the base.
[0025] The beneficial effect of adopting the above-mentioned further solution is that after the outermost tray is rotated 90°, one side of it will extend further outward than the same side of the base. This not only expands the working space of the tray, but also prevents the tray from interfering with the detection components on the working platform of the automated analyzer.
[0026] Furthermore, a buckle is provided on one side baffle of the base, which is used to connect with the automated analyzer working platform to securely fix the carrier device on the automated analyzer working platform.
[0027] The advantage of adopting the above-mentioned further solution is that the buckle allows the carrier device to be securely connected to the automated analyzer's working platform.
[0028] Furthermore, a gripper hole is provided on one side baffle of the base, and a partition is also provided inside the base. The partition is located behind the gripper hole to prevent the user's hand from touching the components in the receiving cavity when it is inserted through the gripper hole. A slot is also provided at the bottom of the base for engaging with the track on the working platform of the automated analyzer.
[0029] The beneficial effects of adopting the above-mentioned further solution are that the gripper hole provides users with a gripping point for easy handling and movement of the carrier device. The partition is set behind the gripper hole to prevent users from accidentally putting their hands into the receiving cavity and touching the internal components during operation. This ensures that users can safely handle the device and effectively prevents accidents. The shape and size of the slot match the track on the working platform of the automated analyzer, so that the entire carrier device can move smoothly along the track and can be firmly fixed in the required position, which facilitates position adjustment on the automated analyzer.
[0030] Furthermore, it also includes a pressure bearing, which is installed between the tray and the top plate.
[0031] The beneficial effect of adopting the above-mentioned further solution is that the pressure bearing between the pallet and the top plate not only reduces the frictional resistance during rotation, improving the smoothness and accuracy of rotation, but also extends the service life of the equipment.
[0032] Furthermore, the bottom of the tray is provided with a limiting groove, and the pressure bearing is installed in the limiting groove.
[0033] The beneficial effect of adopting the above-mentioned further solution is that the top plate is provided with a limiting post, and the precise cooperation between the limiting groove and the limiting post ensures the precise positioning of the pressure bearing during the installation process, avoiding problems such as unstable rotation or increased friction caused by installation position deviation. Attached Figure Description
[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0035] Figure 1 This is a three-dimensional structural schematic diagram of the experimental microplate rotating carrier device according to Embodiment 1 of this utility model;
[0036] Figure 2 This is a schematic diagram of the bottom structure of the tray according to Embodiment 1 of this utility model;
[0037] Figure 3 This is a schematic diagram of the internal structure of the experimental microplate rotating carrier device of this utility model;
[0038] Figure 4 This is a schematic diagram of the connection structure between the motor and the harmonic reducer in Embodiment 1 of this utility model;
[0039] Figure 5 This is a schematic diagram of the bottom structure of the tray of the experimental microplate rotating carrier device of this utility model;
[0040] Figure 6 This is a schematic diagram of the experimental microplate rotating carrier device of this utility model, showing two trays rotated 90 degrees apart.
[0041] Figure 7 This is a schematic diagram of the pressure bearing mounting position structure according to Embodiment 2 of this utility model;
[0042] Figure 8 This is a schematic diagram of the structure of the tray bottom limiting groove in Embodiment 2 of this utility model;
[0043] Figure 9 This is a schematic diagram of the arc-shaped groove and torsion spring of the experimental microplate rotating carrier device of this utility model;
[0044] Figure 10 For the present utility model Figure 9 A magnified structural diagram of part A;
[0045] In the diagram, 100 is the base; 110 is the top plate; 111 is the arc-shaped groove; 112 is the motor mounting bracket; 120 is the front baffle; 121 is the gripper hole; 130 is the rear baffle; 131 is the buckle; 132 is the USB interface; 133 is the plug-in head; 140 is the bottom plate; 141 is the slot; and 150 is the partition.
[0046] 200. Pallet; 201. First pallet; 202. Second pallet; 203. Third pallet; 204. Fourth pallet; 210. Limiting groove;
[0047] 300. Motor; 310. Harmonic reducer; 400. Pressure bearing; 500. Light-blocking rod;
[0048] 600. Torsion spring; 610. Spring body; 620. Torsion arm;
[0049] 700, Optical Coupler Sensor; 800, Coupling. Detailed Implementation
[0050] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and do not imply any priority in order or specific technical meaning. Furthermore, the concepts of "connection" and "linkage" mentioned in this utility model, unless otherwise specified, are considered to include both direct connection (linkage) and indirect connection (linkage). When interpreting this utility model description, it should be clarified that terms such as "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating directions or positional relationships, are based on the perspective and layout shown in the accompanying drawings and are intended to facilitate explanation and simplify the description process, rather than being absolute limitations on the actual location, construction method, and operating mode of the device or element. Therefore, these terms should not be construed as restrictive interpretations of the content of this utility model.
[0051] The principles and features of this utility model are described below with reference to examples. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.
[0052] Example 1:
[0053] like Figure 1 - Figure 4 As shown, a rotating carrier device for experimental microplates includes a base 100, a tray 200, and a drive mechanism. The drive mechanism includes a motor 300 and a harmonic reducer 310. A top plate 110 is provided on the upper part of the base 100. The motor 300 is fixed to the bottom of the top plate 110 by a motor mounting bracket 112. A shaft hole is provided on the top plate 110. The number of trays 200, motors 300, and shaft holes are matched and there are several of each. The motor 300 is installed below the top plate 110, and the tray 200 is installed above the top plate 110. One end of the harmonic reducer 310 is installed on the output shaft of the motor 300, and the other end of the harmonic reducer 310 passes through the shaft hole and is connected to the tray 200. The harmonic reducer 310 has the characteristic of zero backlash, which can ensure the smooth rotation of the tray 200. At the same time, the harmonic reducer 310 can also reduce the torque requirement of the motor 300, and can utilize a small torque motor 300, thereby improving energy utilization efficiency and reducing energy consumption.
[0054] In addition, in this embodiment, the motor 300 is a product that integrates the drive circuit and the control circuit. In terms of control, it adopts a force control mode. When the tray 200 encounters an obstacle, it will automatically stop and maintain a stable torque static state. After the fault is cleared, it will return to its original working state.
[0055] More specifically, the experimental microplate rotating carrier device further includes a sensor assembly. Each tray is equipped with the sensor assembly, which is used to detect whether the tray 200 has rotated to the correct position. The sensor assembly is provided at both the starting end and the ending end of the rotation of the tray 200. The sensor at the starting end of the rotation of the tray 200 is mainly used to detect whether the tray 200 is at the starting position of rotation. The sensor assembly at the ending end of the rotation of the tray 200 is used to detect whether the tray 200 has rotated to the ending position. When the tray 200 rotates to the ending position by a preset angle, the sensor assembly at the ending end of the rotation of the tray 200 will send a signal, and the control system will then control the drive mechanism to stop running.
[0056] In this embodiment, the sensor assembly includes a light-blocking rod 500 and an optical coupler sensor 700. The light-blocking rod 500 is mounted on the tray 200, and the optical coupler sensor 700 is mounted on the top plate 110. Alternatively, the light-blocking rod 500 can be mounted on the top plate 110, and the optical coupler sensor 700 can be mounted on the tray 200. The optical coupler sensor 700 is used to determine whether the tray 200 has rotated to the correct position by detecting the position of the light-blocking rod 500. When the tray 200 rotates to a preset position, the light-blocking rod 500 can block the light path of the optical coupler sensor 700, thereby triggering a corresponding signal.
[0057] Of course, other types of sensor components, such as magnetic induction sensors and proximity switches, can also be considered. As long as these sensor components can effectively realize the function of pallet position detection, they should all be considered to fall within the protection scope of this utility model.
[0058] In this embodiment, an arc-shaped groove 111 is provided on the side of each shaft hole. The optical coupler sensor 700 is disposed at the end of the arc-shaped groove 111. One end of the light-blocking rod 500 is fixed on the tray 200, and the other end extends into the corresponding arc-shaped groove 111. When the tray 200 rotates, it can drive the light-blocking rod 500 to move in the arc-shaped groove 111. The light-blocking rod 500 can move along the arc-shaped groove 111 to the photosensitive groove of the optical coupler sensor 700 to block the light path of the optical coupler sensor 700. The arc-shaped groove 111 on the top plate 110 cooperates with the light-blocking rod 500 under the tray 200, which not only provides a stable rotation track for the tray 200, but also limits the rotation range of the tray 200 and prevents the tray 200 from deviating during rotation. When the light-blocking rod 500 moves to one end of the arc-shaped groove 111, it will block the light of the optical coupler sensor 700 at that end, thereby triggering the output signal of the optical coupler sensor 700.
[0059] Both ends of the arc-shaped groove 111 are equipped with optical couplers 700, which can realize bidirectional detection of the tray 200. When the tray 200 rotates to either end of the arc-shaped groove 111, the light-blocking rod 500 will block the light path of the corresponding optical coupler 700, triggering the output signal. The control system can accurately detect the rotation position of the tray 200.
[0060] In this embodiment of the invention, the number of trays 200 is not limited; they can be flexibly configured as one, two, four, or even more trays 200, as long as the experimental requirements are met, they should be within the protection scope of this invention. The trays 200 are arranged sequentially at intervals on the top plate 110, and the adjacent distance between the trays 200 ensures that two trays 200 spaced apart can rotate simultaneously. The experimental microplate rotating frame device also includes a control system, which can control two trays 200 spaced apart to rotate or reset simultaneously. When two trays 200 spaced apart rotate simultaneously, the experimental workflow can be optimized, experimental efficiency improved, and experimental space saved. Of course, the control system can sequentially rotate or reset adjacent trays 200. When there is interference between the simultaneous rotation of two adjacent trays 200, the control system can first rotate one tray 200 to the target position and then reset it, then rotate the adjacent tray 200 to the target position and reset it, and so on, rotating subsequent trays 200 in sequence. The control system can also control the individual rotation or reset of any one of the trays 200, which can rotate within the range of 0° to 90°. Taking four trays 200 as an example... Figure 6 As shown, the four trays 200 are a first tray 201, a second tray 202, a third tray 203, and a fourth tray 204. The adjacent distance between the first tray 201, the second tray 202, the third tray 203, and the fourth tray 204 can ensure that the first tray 201 and the third tray 203 can rotate simultaneously, and the second tray 202 and the fourth tray 204 can rotate simultaneously. When the outermost first tray 201 rotates 90°, one side edge of the first tray 201 extends beyond the corresponding side edge of the base 100.
[0061] The base 100 also includes a left side plate, a right side plate, a front baffle 120, a rear baffle 130, and a bottom plate 140. The top plate 110, left side plate, right side plate, front baffle 120, rear baffle 130, and bottom plate 140 form a receiving cavity, within which the motor 300 is installed. This not only provides a protected installation environment for core components such as the motor 300 but also enhances the structural strength of the entire device, improving its stability and durability. Figure 1As shown, the rear baffle 130 is also provided with a buckle 131, which is used to connect with the automated analyzer's working platform, firmly fixing the carrier device to the platform. The buckle 131 on the rear baffle 130 ensures a stable connection between the carrier device and the platform. The rear baffle 130 also provides a USB interface 132 and / or a plug-in head 133, providing a convenient way to connect the carrier device to external devices (such as computers, data acquisition devices, etc.). The front baffle 120 is provided with a gripper hole 121, providing a gripping point for easy handling and movement of the carrier device. However, to prevent users from accidentally inserting their hands into the cavity and touching internal components during operation, a partition 150 is provided behind the gripper hole 121. Figure 5 As shown, the base plate 140 is also provided with a slot 141. The shape and size of the slot 141 match the track on the working platform of the automated analyzer, so that the entire carrier device can move smoothly along the track and can be firmly fixed in the required position, which facilitates position adjustment on the automated analyzer.
[0062] The working principle of the experimental microplate rotating carrier device of this utility model is as follows: First, the experimental microplate is placed on the tray 200. The tray 200 is equipped with a limiting position to stably hold the experimental microplate and prevent it from shifting or falling during rotation. The motor 300 is started, and the motor 300 drives the tray 200 to rotate through the harmonic reducer 310. During the rotation of the tray 200, the light-blocking rod 500 below it moves within the arc groove 111 to ensure the stability of the tray 200's rotation. When the light-blocking rod 500 reaches any end of the arc groove 111, it blocks the light from the optical coupler sensor 700 at that end, thereby triggering the output signal of the optical coupler sensor 700 to the control system. Once the tray 200 is rotated into position, the optical coupler sensor 700 immediately sends a signal to the control system, and the control system then controls the motor 300 to stop running, thereby achieving precise control of the rotation of the tray 200.
[0063] The experimental microplate rotating carrier device in this embodiment integrates a base 100, a tray 200, a motor 300, and a harmonic reducer 310. The harmonic reducer 310 features zero backlash, ensuring smooth and accurate rotation of the tray 200. Furthermore, the harmonic reducer 310 reduces the torque requirement of the motor 300, allowing the use of a low-torque motor 300, thereby improving energy efficiency and reducing energy consumption. The motor 300 integrates the motor drive circuit and control circuit, employing a force control mode. When the system encounters an obstacle, it automatically stops and maintains a stable, static torque state. After the fault is cleared, it returns to its original operating state, such as a 90-degree or 0-degree operating state. The arc-shaped groove 111 on the top plate 110 cooperates with the light-blocking rod 500 under the tray 200, which not only provides a stable rotation track for the tray 200, but also limits the rotation range of the tray 200 and prevents the tray 200 from deviating during rotation. Each tray 200 is driven by an independent motor 300. The output shaft of the motor 300 passes through the shaft hole and is connected to the tray 200 through the coupling 800. The number of trays 200 and motors 300 are matched. Each tray 200 can work independently, or some trays 200 can be controlled to rotate together by the control system, which ensures the accuracy of the rotation action.
[0064] Example 2:
[0065] like Figure 7 - Figure 10 As shown, unlike Embodiment 1, the experimental microplate rotating support device in this embodiment includes a base 100, a tray 200, a motor 300, and a pressure bearing 400. The base 100 has a top plate 110 on its upper part, and the top plate 110 has shaft holes. The number of trays 200, motors 300, and shaft holes are matched and there are several of each. The motor 300 is installed below the top plate 110, and the tray 200 is installed above the top plate 110. The output shaft of the motor 300 passes through the corresponding shaft hole and is connected to the tray 200 through a coupling 800. The pressure bearing 400 is installed between the tray 200 and the top plate 110.
[0066] Each of the aforementioned shaft holes is provided with an arc-shaped groove 111 centered on the shaft hole on its side, such as... Figure 8As shown, a light-blocking rod 500 is also provided below the tray 200. One end of the light-blocking rod 500 is fixed to the tray 200, and the other end extends into the corresponding arc-shaped groove 111, and can move along its trajectory within the arc-shaped groove 111. A limiting groove 210 is also provided at the bottom of the tray 200. The pressure bearing 400 is installed in the limiting groove 210. A limiting post is provided on the top plate 110. The precise fit between the limiting groove 210 and the limiting post ensures the precise positioning of the pressure bearing 400 during installation, avoiding problems such as unstable rotation or increased friction caused by installation position deviation.
[0067] like Figure 9 and Figure 10 As shown, buffers are provided at both ends of the arc-shaped groove 111 to provide buffering force when the light-blocking rod 500 reaches both ends of the arc-shaped groove 111, preventing the light-blocking rod 500 from having a hard collision with the inner wall of the arc-shaped groove 111. In this embodiment, the buffer is a torsion spring 600, which includes a spring body 610 and a torsion arm 620. The two ends of the arc-shaped groove 111 are provided with reserved holes. The spring body 610 is inserted into and fixed in the reserved holes. The torsion arm 620 is positioned at the end of the arc-shaped groove 111. When the tray 200 rotates to its limit position under the drive of the motor 300, and the light-blocking rod 500 touches the two ends of the arc-shaped groove 111, the torsion arm 620 first contacts the light-blocking rod 500, providing a gentle buffering force for the light-blocking rod 500. This avoids a hard collision between the light-blocking rod 500 and the inner wall of the arc-shaped groove 111, reduces noise and vibration caused by impact, and further protects the precision components inside the device from damage.
[0068] Of course, in addition to the torsion spring 600, other types of buffers can also be used, such as rubber pads, polyurethane pads, springs, etc. As long as they can reduce the collision impact between the light-blocking rod 500 and the inner wall of the arc groove 111 and achieve the buffering effect, they should all be considered to fall within the protection scope of this utility model.
[0069] The working principle of the experimental microplate rotating carrier device of this utility model is as follows: First, the experimental microplate is placed on the tray 200. The tray 200 is equipped with a limiting position to stably hold the experimental microplate and prevent it from shifting or falling during rotation. The motor 300 is started, which drives the coupling 800 through the output shaft, thereby driving the tray 200 to rotate. During the rotation of the tray 200, the light-blocking rod 500 below it moves within the arc groove 111 to ensure the stability of the tray 200's rotation. When the light-blocking rod 500 reaches any end of the arc groove 111, the torsion spring 600 takes effect to prevent the light-blocking rod 500 from colliding with the inner wall of the arc groove 111, reducing noise and wear. The optocoupler sensor 700 detects the position of the light-blocking rod 500 to determine whether the tray 200 has rotated into position. Once the tray 200 has rotated into position, the optocoupler sensor 700 immediately sends a signal to the control system, which then controls the motor 300 to stop running, thereby achieving precise control of the rotation of the tray 200.
[0070] In this embodiment, the experimental microplate rotating carrier device integrates components such as a base 100, a tray 200, a motor 300, and a pressure bearing 400, ensuring stable and accurate rotation of the tray 200. The number of trays 200, motors 300, and pressure bearings 400 are matched, and there are several of each. This modular design allows the device to be flexibly configured according to actual experimental needs. The arc-shaped groove 111 on the top plate 110 cooperates with the light-blocking rod 500 below the tray 200, providing a stable rotation track for the tray 200 and limiting its rotation range, preventing deviation during rotation. Each tray 200 is driven by an independent motor 300. The output shaft of the motor 300 passes through a shaft hole and is connected to the tray 200 via a coupling 800. Each tray 200 can work independently, or a control system can control certain trays 200 to rotate together, ensuring the accuracy of the rotation. The pressure bearing 400 between the tray 200 and the top plate 110 not only reduces frictional resistance during rotation, improving the smoothness and accuracy of rotation, but also extends the service life of the equipment.
[0071] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rotating carrier device for experimental microplates, characterized in that, The device includes a base (100), a tray (200), and a drive mechanism. The base (100) has a top plate (110) on its upper part, and the top plate (110) has shaft holes. The number of trays (200), drive mechanisms, and shaft holes are matched and there are several of each. The drive mechanism is installed below the top plate (110), and the tray (200) is installed above the top plate (110). The drive mechanism is drivenly connected to the tray (200).
2. The experimental microplate rotating support device according to claim 1, characterized in that, The drive mechanism includes a motor (300) and a harmonic reducer (310), the harmonic reducer (310) being mounted on the output shaft of the motor (300), and the tray (200) being mounted on the harmonic reducer (310).
3. The experimental microplate rotating support device according to claim 1 or 2, characterized in that, It also includes a sensor assembly for detecting whether the tray (200) has rotated into position. The sensor assembly is provided at both the starting end and the ending end of the rotation of the tray (200).
4. The experimental microplate rotating support device according to claim 3, characterized in that, The sensor assembly includes a light-blocking rod (500) and an optical coupler sensor (700). The light-blocking rod (500) is mounted on the tray (200), and the optical coupler sensor (700) is mounted on the top plate (110). Alternatively, the light-blocking rod (500) is mounted on the top plate (110), and the optical coupler sensor (700) is mounted on the tray (200). The optical coupler sensor (700) is used to determine whether the tray (200) has rotated into position by detecting the position of the light-blocking rod (500).
5. The experimental microplate rotating support device according to claim 4, characterized in that, Each of the shaft holes has an arc-shaped groove (111) on its side. The optical coupler sensor (700) is located at the end of the arc-shaped groove (111). One end of the light-blocking rod (500) is fixed on the tray (200), and the other end extends into the corresponding arc-shaped groove (111). When the tray (200) rotates, it can drive the light-blocking rod (500) to move in the arc-shaped groove (111). The light-blocking rod (500) can move along the arc-shaped groove (111) to the photosensitive groove of the optical coupler sensor (700) to block the light path of the optical coupler sensor (700).
6. The experimental microplate rotating support device according to claim 5, characterized in that, The two ends of the arc-shaped groove (111) are also provided with buffers to provide buffering force when the light-blocking rod (500) reaches the two ends of the arc-shaped groove (111) to prevent the light-blocking rod (500) from having a hard collision with the inner wall of the arc-shaped groove (111).
7. The experimental microplate rotating support device according to claim 6, characterized in that, The buffer is a torsion spring (600), which includes a torsion arm (620) that is positioned at the end of the arcuate groove (111).
8. The experimental microplate rotating support device according to claim 1, characterized in that, Several of the trays (200) are arranged sequentially at intervals on the top plate (110), and the adjacent distance between the trays (200) can ensure that two trays (200) spaced apart from each other can rotate simultaneously.
9. The experimental microplate rotating support device according to claim 1, characterized in that, It also includes a control system, which can control two spaced-apart trays (200) to rotate or reset simultaneously, or the control system can control adjacent trays (200) to rotate or reset sequentially, or the control system can control any one of the trays (200) to rotate or reset individually, and the trays (200) can rotate in the range of 0° to 90°.
10. The experimental microplate rotating support device according to claim 9, characterized in that, When the outermost tray (200) is rotated 90°, one side edge of the tray (200) extends beyond the corresponding side edge of the base (100).
11. The experimental microplate rotating support device according to claim 1, characterized in that, The base (100) is also provided with a buckle (131) on one side baffle, which is used to connect to the working platform of the automated analyzer.
12. The experimental microplate rotating support device according to claim 11, characterized in that, The base (100) has a gripper hole (121) on one side baffle. The base (100) also has a partition (150) inside. The partition (150) is located behind the gripper hole (121). The bottom of the base (100) also has a slot (141) for engaging with the track on the working platform of the automated analyzer.
13. The experimental microplate rotating support device according to claim 1, characterized in that, It also includes a pressure bearing (400) installed between the tray (200) and the top plate (110).
14. The experimental microplate rotating support device according to claim 13, characterized in that, The bottom of the tray (200) is also provided with a limiting groove (210), and the pressure bearing (400) is installed in the limiting groove (210).