Reagent piece feeding and discharging device
By employing a linear motion mechanism in the sample analyzer to feed and unload reagent tablets, integrating tablet feeding and unloading functions, and utilizing a movable work frame and switchable push block states, the problems of space occupation and control complexity in existing technologies are solved, thereby improving the instrument's compact structure and control reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-03
AI Technical Summary
In existing sample analyzers, the wafer feeding and unloading mechanisms are two sets of linear motion mechanisms, which occupy a large space, increase manufacturing costs, and have high control complexity.
A reagent tablet feeding and unloading device using a linear motion mechanism integrates tablet feeding and unloading functions through a movable work frame and switchable tablet feeding and unloading push blocks. The push block state switching is achieved by using a shoulder and a push block movable groove, simplifying the control system.
It saves internal space of the instrument, reduces the burden on the control system, reduces the risk of failure, improves control accuracy and reliability, and shortens the research and development cycle and cost.
Smart Images
Figure CN224081650U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical testing instrument technology, and more specifically, to a reagent loading and unloading device. Background Technology
[0002] In the sample analyzer, after the reagent strips are dispensed, they need to be loaded from the reagent strip storage area to the incubation area by the strip loading mechanism for incubation. After the reagent strip testing is completed, the reagent strips need to be hooked out of the incubation area by the strip unloading mechanism for unloading.
[0003] Since both slide loading and unloading require physical contact with the reagent slides, in typical sample analyzers, the slide loading and unloading mechanisms are usually two sets of linear motion mechanisms moving around the incubation tray to accommodate different transport paths. This design of two sets of motion mechanisms occupies a large amount of structural space for small-volume analytical instruments, increases the complexity of motion control, and also increases the manufacturing cost of the instrument itself. Utility Model Content
[0004] The purpose of this application is to provide a reagent tablet feeding and unloading device, which can complete the reagent tablet feeding and unloading actions through a linear motion mechanism, thereby simplifying the structure of the sample analyzer.
[0005] The embodiments of this application are implemented as follows:
[0006] This application provides a reagent tablet feeding and unloading device, including an incubation device and a tablet feeding and unloading device. The incubation device has an incubation tank, and the tablet feeding and unloading device includes a movable work frame and a tablet feeding pusher and a tablet unloading pusher located on the work frame. The tablet feeding pusher and the tablet unloading pusher are arranged sequentially along the tablet feeding direction of the work frame, and the tablet unloading pusher can switch between a retracted state and an expanded state.
[0007] When the incubation tank is in the loading / unloading position, the work frame pushes the reagent tablet to move along the loading direction to the incubation tank via the loading pusher, and the unloading pusher is in a retracted state to avoid the incubation device; or, the work frame pushes the reagent tablet out of the incubation tank along the unloading direction via the unloading pusher in the unfolded state.
[0008] Optionally, as an implementable method, the incubation device is provided with a shoulder. When the work frame moves to the incubation tank along the feeding direction, the unloading push block and the shoulder abut against each other to keep the unloading push block in a retracted state. When the work frame exits the incubation tank along the unloading direction, the unloading push block is in an extended state due to its own weight.
[0009] Optionally, as an implementable method, a pusher movable groove connected to the incubation tank is provided at the end of the incubation tank. When the work frame exits the incubation tank in the unloading direction, the unloading pusher switches from a retracted state to an extended state in the pusher movable groove.
[0010] Optionally, as an implementable method, the feeding and unloading device further includes a slide rail, a first rotary drive member disposed at the end of the slide rail, a rotating shaft connected to the first rotary drive member, and the work frame slidably disposed on the slide rail and threadedly connected to the rotating shaft, so that the work frame is driven to slide linearly on the slide rail by the first rotary drive member.
[0011] Optionally, as an implementable method, the unloading pusher is provided with a limiting part, which abuts against the work frame when the unloading pusher pushes the reagent tablet.
[0012] Optionally, as one possible implementation, the incubation device includes a housing and an incubation tray disposed within the housing, a plurality of incubation slots disposed on the incubation tray, a first opening for linear movement of the work frame disposed above the housing, a second opening communicating with the first opening disposed on the side wall of the housing, and a shoulder disposed at the end of the first opening away from the second opening.
[0013] Optionally, as an implementable approach, a conveyor table connected to the second opening is also included, the conveyor table dividing the second opening into an upper input port and a lower output port.
[0014] Optionally, as an implementable method, the incubation tray is a circular incubation tray, and the incubation tank includes a plurality of incubation tanks arranged at intervals around the circular incubation tray. The bottom of the housing is provided with a second rotation drive member connected to the incubation tray, and the incubation tray is rotated by the second rotation drive member.
[0015] Alternatively, as an implementable method, the feed pusher is a bent plate disposed at the end of the work frame.
[0016] Optionally, as an implementable method, the side of the unloading pusher away from the feeding pusher is an arc surface, which extends from the top of the unloading pusher to the bottom of the unloading pusher.
[0017] The beneficial effects of the embodiments of this application include:
[0018] The reagent tablet loading and unloading device of this application includes an incubation device and a tablet loading and unloading device. The incubation device has an incubation tank, and the tablet loading and unloading device includes a movable work frame and tablet loading pushers and unloading pushers located on the work frame. The tablet loading pushers and unloading pushers are arranged sequentially along the tablet loading direction of the work frame, and the unloading pushers can switch between a retracted state and an expanded state. By integrating the tablet loading and unloading functions into the same work frame, the unloading pushers have the function of freely switching between the retracted state and the expanded state, so as to ensure that the tablet loading process and the tablet unloading process do not interfere with each other. This eliminates the need for two sets of traditional independent linear motion mechanisms, greatly saving internal space of the instrument. It significantly improves the structural compactness of small sample analyzers. Since only the movement of one work frame and the state switching of the unloading pushers need to be controlled, the burden on the control system is greatly reduced compared to managing two sets of complex linear motion mechanisms. This reduces the risk of collisions, jamming, and other failures that may occur when multiple mechanisms work together, improves the accuracy and reliability of control, reduces the requirements for control algorithms and hardware computing power, thereby shortening the development cycle, reducing development costs, and facilitating the maintenance and troubleshooting of the equipment in the later stages. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is one of the structural schematic diagrams of the reagent tablet feeding and unloading device provided in the embodiments of this application;
[0021] Figure 2 This is one of the structural schematic diagrams of the incubation device in the reagent tablet feeding and unloading device provided in the embodiments of this application;
[0022] Figure 3 This is a second schematic diagram of the incubation device in the reagent tablet feeding and unloading device provided in the embodiments of this application;
[0023] Figure 4 This is a schematic diagram of the structure of the tablet feeding and unloading device in the reagent tablet feeding and unloading device provided in the embodiments of this application.
[0024] Icons: 100 - Reagent tablet loading / unloading device; 110 - Incubation device; 111 - Housing; 1111 - First opening; 1112 - Second opening; 1113 - Shoulder; 112 - Incubation tray; 1121 - Incubation tank; 1122 - Push block movable slot; 113 - First rotary drive component; 120 - Tablet loading / unloading device; 121 - Work frame; 122 - Tablet loading push block; 123 - Tablet unloading push block; 1231 - Limiting part; 124 - Slide rail; 125 - Second rotary drive component; 126 - Rotating shaft; 130 - Conveyor table. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0027] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0028] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0029] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4This embodiment provides a reagent tablet feeding and unloading device 100, including an incubation device 110 and a tablet feeding and unloading device 120. The incubation device 110 has an incubation tank 1121. The tablet feeding and unloading device 120 includes a movable work frame 121 and a tablet feeding pusher 122 and a tablet unloading pusher 123 located on the work frame 121. The tablet feeding pusher 122 and the tablet unloading pusher 123 are arranged sequentially along the tablet feeding direction of the work frame 121. The tablet unloading pusher 123 can switch between a retracted state and an expanded state.
[0030] When the incubation tank 1121 is in the loading / unloading position, the work frame 121 pushes the reagent tablets along the loading direction to the incubation tank 1121 via the tablet loading pusher 122, and the unloading pusher 123 is in a retracted state to avoid the incubation device 110. Alternatively, the work frame 121 pushes the reagent tablets out of the incubation tank 1121 along the unloading direction via the unloading pusher 123 in the unfolded state.
[0031] Specifically, the incubation device 110 is equipped with an incubation tank 1121 for accommodating reagent tablets and providing a suitable incubation environment. The tablet loading and unloading device 120 features an ingeniously designed, flexibly movable work frame 121. The work frame 121 cleverly incorporates a tablet loading pusher 122 and a tablet unloading pusher 123, which are arranged sequentially along the tablet loading direction of the work frame 121. Notably, the tablet unloading pusher 123 has the function of freely switching between a retracted state and an expanded state.
[0032] When the incubation tank 1121 is precisely moved to the loading / unloading position, if a tablet loading operation is to be performed, the work frame 121, under the action of an external drive mechanism (such as a motor, lead screw, etc.), drives the tablet loading pusher 122 to move towards the incubation tank 1121. The tablet loading pusher 122 contacts the reagent tablet and pushes it steadily forward along the preset loading direction until the reagent tablet smoothly enters the incubation tank 1121. At this time, the unloading pusher 123 is in a retracted state, completely retracted to a position that does not obstruct the tablet loading operation, and maintains sufficient clearance between itself and the incubation device 110 to ensure a smooth and unobstructed tablet loading process. Conversely, if a tablet unloading operation is to be performed, the unloading pusher 123 will be pre-swapped to an extended state. Similarly, under the movement of the work frame 121, the unloading pusher 123 abuts against the reagent tablet and slowly pushes it out of the incubation tank 1121 along the unloading direction opposite to the loading direction, thereby unloading the reagent tablet.
[0033] When using the tablet loading / unloading device 120 of this application, the control system of the sample analyzer first confirms that the incubation tank 1121 has been accurately moved to the loading / unloading position. This position information can be fed back to the control system in real time through sensors (such as position sensors, photoelectric switches, etc.). The control system drives the working frame 121 of the tablet loading / unloading device 120 to move towards the incubation tank 1121. At this time, the unloading pusher 123 is in a retracted state, and the loading pusher 122 moves forward with the working frame 121 and contacts the reagent tablet to be loaded in the reagent tablet storage area. The loading pusher 122 continuously pushes the reagent tablet, moving forward at a stable speed along the preset loading direction until the reagent tablet is completely entered into the incubation tank 1121. The working frame 121 stops moving, and the loading operation is completed.
[0034] When the sample analyzer's testing process is complete and reagent strips need to be unloaded, the control system first issues a command to switch the unloading pusher 123 from the retracted state to the extended state. This switching action can be achieved through electromagnetic drive, mechanical linkage, or other means. The control system drives the work frame 121 to move away from the center of the incubation tank 1121. The extended unloading pusher 123 presses against the reagent strips in the incubation tank 1121, pushing the reagent strips slowly out of the incubation tank 1121 along the unloading direction. Once the reagent strips have completely left the incubation tank 1121 and reached the designated unloading position, the work frame 121 stops moving, and the unloading pusher 123 can be switched back to the retracted state as needed, preparing for the next strip loading or unloading operation cycle.
[0035] The reagent tablet loading and unloading device 100 of this application includes an incubation device 110 and a tablet loading and unloading device 120. The incubation device 110 has an incubation tank 1121. The tablet loading and unloading device 120 includes a movable work frame 121 and a tablet loading pusher 122 and a tablet unloading pusher 123 located on the work frame 121. The tablet loading pusher 122 and the tablet unloading pusher 123 are arranged sequentially along the tablet loading direction of the work frame 121. The tablet unloading pusher 123 can switch between a retracted state and an expanded state. By integrating the tablet loading and unloading functions into the same work frame 121, the tablet unloading pusher 123 has the function of freely switching between a retracted state and an expanded state to ensure that the tablet loading process and the tablet unloading process do not interfere with each other. This eliminates the need for two sets of traditional independent linear motion mechanisms, greatly saving internal space of the instrument. It significantly improves the structural compactness of small sample analyzers. Since only the movement of one work frame 121 and the state switching of the tablet unloading pusher 123 need to be controlled, the burden on the control system is greatly reduced compared to managing two sets of complex linear motion mechanisms. It reduces the risk of collisions, jams and other malfunctions that may occur when multiple mechanisms work together, improves the accuracy and reliability of control, reduces the requirements for control algorithms and hardware computing power, thereby shortening the R&D cycle and reducing R&D costs, and also facilitates the maintenance and troubleshooting of the equipment in the later stage.
[0036] In one possible embodiment of this application, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the incubation device 110 is provided with a shoulder 1113. When the work frame 121 moves to the incubation tank 1121 along the feeding direction, the unloading push block 123 and the shoulder 1113 abut against each other so that the unloading push block 123 is in a retracted state. When the work frame 121 exits the incubation tank 1121 along the unloading direction, the unloading push block 123 and the shoulder 1113 disengage from the abutment and are in an extended state under their own weight.
[0037] Specifically, a shoulder 1113 structure is specially added to the incubation device 110 of the reagent tablet feeding and unloading device 100. This shoulder 1113 is located at a specific position on the incubation device 110, and its function is closely related to the working process of the tablet feeding and unloading device 120. When the work frame 121 steadily advances towards the incubation tank 1121 along the tablet feeding direction according to the tablet feeding process, the unloading pusher 123 will approach the shoulder 1113 as the work frame 121 moves. Once the unloading pusher 123 contacts the shoulder 1113, due to the blocking effect of the shoulder 1113, the unloading pusher 123 will be forced to retract inward, thereby ensuring that during the tablet feeding operation, the unloading pusher 123 will not cause any obstruction to the tablet feeding path or the process of the reagent tablet entering the incubation tank 1121, ensuring the smoothness and accuracy of the tablet feeding action. When subsequent tablet unloading operations are required, as the work frame 121 slowly retracts from the incubation tank 1121 along the unloading direction, the unloading pusher 123 is no longer constrained by the shoulder 1113. At this time, the unloading pusher 123, under its own weight, naturally swings downward or moves to the unfolded state, preparing for the upcoming unloading pushing action. This allows the unloading pusher 123 to smoothly contact and push the reagent tablets in the incubation tank 1121. By cleverly utilizing the mechanical cooperation between the shoulder 1113 and the unloading pusher 123, the automatic switching of the unloading pusher 123's state is achieved. No additional complex electronic control devices are needed to control the contraction and unfolding of the unloading pusher 123, simplifying the control system design of the device, reducing costs, and improving reliability. Furthermore, this purely mechanical interaction method makes the tablet loading and unloading process more natural and smooth, reducing the risk of failure due to state switching errors, and improving the stability and efficiency of the entire tablet loading and unloading operation.
[0038] In one possible embodiment of this application, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a push block movable groove 1122 connected to the incubation tank 1121 is provided at the end of the incubation tank 1121. When the work frame 121 exits the incubation tank 1121 in the unloading direction, the unloading push block 123 switches from the retracted state to the unfolded state in the push block movable groove 1122.
[0039] Specifically, the pusher slot 1122, as the dedicated space for the state transition of the unloading pusher 123, plays a crucial role. When the work rack 121 exits the incubation tank 1121 along the unloading direction according to the unloading process, the unloading pusher 123 moves along with the work rack 121. After entering the area defined by the pusher slot 1122, due to the spatial guidance and constraint of the pusher slot 1122, the unloading pusher 123 can smoothly and accurately switch from a potentially restricted retracted state to an extended state. The shape and size of the pusher slot 1122 perfectly match the movement trajectory of the unloading pusher 123, ensuring that the unloading pusher 123 will not experience any abnormalities such as jamming or deviation during the switching process, providing a solid guarantee for the smooth unloading of reagent tablets subsequently.
[0040] In one possible embodiment of this application, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the feeding and unloading device 120 also includes a slide rail 124, a first rotary drive 113 disposed at the end of the slide rail 124, a rotating shaft 126 connected to the first rotary drive 113, and a working frame 121 slidably disposed on the slide rail 124 and threadedly connected to the rotating shaft 126. The working frame 121 is driven to slide linearly on the slide rail 124 by the first rotary drive 113.
[0041] Specifically, this application sets a slide rail 124 as the moving track of the work frame 121, providing stable support and guidance for the linear movement of the work frame 121. A first rotary drive component 113, commonly a rotary motor, is installed at the end of the slide rail 124. The first rotary drive component 113 is rigidly connected to the rotating shaft 126 via a coupling or other connection method. The bottom of the work frame 121 slides in cooperation with the slide rail 124 via a slider or other adaptable structure. At the same time, a nut or similar threaded structure is provided on the work frame 121 that is threadedly connected to the rotating shaft 126. When the first rotary drive component 113 receives a drive command from the control system and starts to rotate, the rotating shaft 126 rotates synchronously. Utilizing the principle of threaded transmission, the work frame 121, which is threadedly connected to the rotating shaft 126, will slide linearly along the slide rail 124 under the constraint of the slide rail 124, achieving precise displacement control in the feeding and unloading directions, and meeting the positional requirements of the work frame 121 at different operation stages.
[0042] In one possible embodiment of this application, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a limiting part 1231 is provided on the unloading pusher 123. When the unloading pusher 123 pushes the reagent tablet, the limiting part 1231 abuts against the work frame 121.
[0043] The unloading pusher 123 has an added limiting part 1231, which is located at a specific position on the unloading pusher 123 and cooperates with the corresponding part of the work frame 121. When the unloading pusher 123 performs the task of unloading reagent tablets, as the unloading pusher 123 extends outward and applies a pushing force, due to the reaction force, the unloading pusher 123 itself is at risk of backward displacement or excessive swinging. This may cause the unloading pusher 123 to be unable to continuously and stably apply a pushing force to the reagent tablet, or even lose effective contact with the reagent tablet. The existence of the limiting part 1231 effectively solves this problem. When the unloading pusher 123 pushes the reagent tablet, the limiting part 1231 will make close contact with the corresponding abutment part on the work frame 121, forming a stable support and limiting structure, limiting the excessive displacement and swinging of the unloading pusher 123, ensuring that the unloading pusher 123 always maintains the optimal pushing force application position, and stably and efficiently pushes the reagent tablet out of the incubation tank 1121.
[0044] During tablet removal, the work frame 121 drives the tablet removal pusher 123, which is in the unfolded state, to move along the tablet removal direction. The tablet removal pusher 123 contacts the reagent tablet in the incubation tank 1121 and begins to apply a pushing force. As the pushing force increases, the tablet removal pusher 123 tends to move backward. At this time, the limiting part 1231 on the tablet removal pusher 123 gradually approaches and finally abuts against the work frame 121, preventing the tablet removal pusher 123 from moving further backward or swinging, and maintaining a stable contact state between the tablet removal pusher 123 and the reagent tablet. Under the protection of the limiting part 1231, the tablet removal pusher 123 continues to push the reagent tablet until it completely leaves the incubation tank 1121, completing the tablet removal operation.
[0045] In one possible embodiment of this application, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the incubation device 110 includes a housing 111 and an incubation tray 112 disposed inside the housing 111. A plurality of incubation tanks 1121 are disposed on the incubation tray 112. A first opening 1111 for linear movement of the work frame 121 is provided above the housing 111. A second opening 1112 communicating with the first opening 1111 is provided on the side wall of the housing 111. A shoulder 1113 is disposed at the end of the first opening 1111 away from the second opening 1112.
[0046] Furthermore, it also includes a conveyor 130 connected to the second opening 1112, which divides the second opening 1112 into an upper input port and a lower output port.
[0047] The housing 111 of this application serves as an external protective and support structure, providing a stable installation environment and physical protection for the internal components. The incubation tray 112, located within the housing 111, is a key component supporting multiple incubation chambers 1121. These chambers are spaced apart on the incubation tray 112 to simultaneously accommodate multiple reagent strips for incubation, improving sample detection efficiency. A first opening 1111 is intentionally created above the housing 111. The size and shape of this opening are adapted to the linear movement trajectory of the work frame 121, providing an unobstructed passage for the work frame 121 and ensuring smooth strip loading and unloading operations above the incubation device 110. Simultaneously, a second opening 1112, communicating with the first opening 1111, is provided on the side wall of the housing 111. This second opening 1112 has a unique function: it connects to the transport stage 130 to guide the input and output paths of the reagent strips. The key structure, shoulder 1113, is located at the end of the first opening 1111 that is far from the second opening 1112. Its position layout is closely coordinated with the work frame 121 for unloading and feeding process to control the state switching of the unloading push block 123.
[0048] A conveyor platform 130, tightly connected to the second opening 1112, is added to the incubation device 110. This conveyor platform 130 serves as a crucial transit platform for reagent strips entering and exiting the incubation device 110, acting as a link between the upper and lower sections. Its ingenious structural design divides the second opening 1112 into an upper input port and a lower output port. During the strip feeding operation, an external conveying device transports the reagent strip to the upper area of the conveyor platform 130, precisely feeding it into the incubation device 110 through the input port, seamlessly coordinating with the strip feeding action of the work rack 121. During the strip unloading stage, the completed reagent strip is pushed out of the incubation tank 1121 by the strip unloading pusher 123, falls onto the conveyor platform 130 through the lower output port of the second opening 1112, and is then transferred by the conveyor platform 130 to a subsequent designated location, such as a waste collection area or a waiting area for other secondary testing stages, ensuring the orderly flow of reagent strips throughout the sample analyzer.
[0049] In one possible embodiment of this application, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the incubation tray 112 is a circular incubation tray 112, and the incubation tank 1121 includes multiple incubation tanks 1121 which are arranged in a ring around the circular incubation tray 112 at intervals. The bottom of the housing 111 is provided with a second rotation drive 125 connected to the incubation tray 112, and the incubation tray 112 is rotated by the second rotation drive 125.
[0050] Specifically, the incubation tray 112 adopts a circular design, with multiple incubation slots 1121 evenly spaced around it. This layout fully utilizes the circumferential space, achieving an efficient incubation arrangement for multiple reagent strips. A second rotary drive 125, typically a combination of a motor and a reducer, is installed at the bottom of the housing 111 and connected to the center of the bottom of the incubation tray 112 via a coupling or gear transmission. When it is necessary to switch the position of the incubation slots 1121 to meet the needs of loading and unloading different reagent strips or to optimize the incubation sequence, the second rotary drive 125 receives a command from the control system and begins to rotate, driving the incubation tray 112 to slowly rotate around its central axis. This precisely rotates the target incubation slot 1121 to the loading / unloading position corresponding to the work stand 121, achieving efficient and flexible switching of the incubation slots 1121. Working in conjunction with the loading / unloading device 120, it improves the overall working efficiency of the sample analyzer.
[0051] In one possible embodiment of this application, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the tablet pusher 122 is a bent plate located at the end of the work frame 121. The unique shape of the tablet pusher 122 is designed as a bent plate structure at the end of the work frame 121, based on the mechanical and spatial requirements of the tablet feeding operation. One end of the bent plate is fixed to the end of the work frame 121, forming a stable connection, while the other end extends outward and bends. The bending angle is adapted to the outline of the reagent tablet and the tablet feeding path, allowing the bent portion to precisely conform to the side of the reagent tablet upon contact, providing a stable and uniform pushing force. Compared to traditional block or rod-shaped tablet feeding structures, the bent plate is less likely to cause reagent tablets to shift or flip during the pushing process, ensuring that the reagent tablet smoothly enters the incubation tank 1121 along the predetermined feeding direction, thus improving the tablet feeding success rate.
[0052] Alternatively, as an implementable method, the side of the unloading pusher 123 away from the feeding pusher 122 is an arc surface, extending from the top to the bottom of the unloading pusher 123. This arc surface design mainly takes into account the interaction characteristics with the shoulder 1113 during the feeding and unloading operation, ensuring that when the unloading pusher 123 is rotatably connected to the work frame 121, the unloading pusher 123 can freely switch between a retracted state and an extended state.
[0053] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A reagent tablet feeding and unloading device, characterized in that, The device includes an incubation device and a tablet feeding and unloading device. The incubation device has an incubation tank. The tablet feeding and unloading device includes a movable work frame and a tablet feeding pusher and a tablet unloading pusher located on the work frame. The tablet feeding pusher and the tablet unloading pusher are arranged sequentially along the tablet feeding direction of the work frame. The tablet unloading pusher can switch between a retracted state and an expanded state. When the incubation tank is in the loading / unloading position, the work frame pushes the reagent tablet to move along the loading direction to the incubation tank via the loading pusher, and the unloading pusher is in a retracted state to avoid the incubation device; or, the work frame pushes the reagent tablet out of the incubation tank along the unloading direction via the unloading pusher in the unfolded state.
2. The reagent tablet feeding and unloading device according to claim 1, characterized in that, The incubation device is provided with a shoulder. When the work frame moves to the incubation tank along the feeding direction, the unloading push block and the shoulder abut against each other to keep the unloading push block in a retracted state. When the work frame exits the incubation tank along the unloading direction, the unloading push block and the shoulder disengage and are in an extended state under their own weight.
3. The reagent tablet feeding and unloading device according to claim 1 or 2, characterized in that, A push block movable groove connected to the incubation tank is provided at the end of the incubation tank. When the work frame exits the incubation tank in the unloading direction, the unloading push block switches from a retracted state to an extended state in the push block movable groove.
4. The reagent tablet feeding and unloading device according to claim 1, characterized in that, The feeding and unloading device also includes a slide rail, a first rotary drive component disposed at the end of the slide rail, a rotating shaft connected to the first rotary drive component, and the work frame slidably disposed on the slide rail and threadedly connected to the rotating shaft. The first rotary drive component drives the work frame to slide linearly on the slide rail.
5. The reagent tablet feeding and unloading device according to claim 1, characterized in that, The unloading pusher is provided with a limiting part, which abuts against the work frame when the unloading pusher pushes the reagent tablet.
6. The reagent tablet feeding and unloading device according to claim 2, characterized in that, The incubation device includes a housing and an incubation tray disposed within the housing. The incubation tank includes a plurality of incubation tanks disposed on the incubation tray. A first opening for linear movement of the work frame is provided above the housing. A second opening communicating with the first opening is provided on the side wall of the housing. A shoulder is provided at the end of the first opening away from the second opening.
7. The reagent tablet feeding and unloading device according to claim 6, characterized in that, It also includes a conveyor that connects to the second opening, the conveyor dividing the second opening into an upper input port and a lower output port.
8. The reagent tablet feeding and unloading device according to claim 6, characterized in that, The incubation tray is a circular incubation tray, and a plurality of incubation slots are arranged around the circular incubation tray at intervals. The bottom of the housing is provided with a second rotation drive member connected to the incubation tray, which drives the incubation tray to rotate.
9. The reagent tablet feeding and unloading device according to claim 1, characterized in that, The feeding pusher is a bent plate located at the end of the work frame.
10. The reagent tablet feeding and unloading device according to claim 1, characterized in that, The side of the unloading pusher away from the feeding pusher is an arc surface, which extends from the top of the unloading pusher to the bottom of the unloading pusher.