Reagent piece feeding and discharging device
Through a set of reagent tablet devices with linear motion mechanisms, the problem of large space and complex control in the sample analyzer is solved, and the instrument structure is compact and the control system is simplified, and the failure risk and R&D cost are reduced.
Patent Information
- Application Number
- CN202510370482.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2025-07-22
AI Technical Summary
In the sample analyzer, the insertion and unloading of the blade requires two sets of linear motion mechanisms, which take up a large space and increase control complexity and cost.
A set of reagent tablet devices with linear motion mechanism are adopted to promote and unload the reagent tablet through the movable work rack and the switching of the inlet push block and the unloading of the reagent tablet, and the two traditional sets of independent linear motion mechanisms are abandoned.
Save internal space of the instrument, reduce the burden on the control system, reduce the risk of failure, improve control accuracy and reliability, and shorten the R&D cycle and cost.
Smart Images
Figure CN120352640A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical detection instruments, and more particularly, to a reagent sheet loading and unloading device. Background Art
[0002] In a sample analyzer, after a reagent sheet is sampled, it needs to be loaded from the reagent sheet storage area to the incubation area by a sheet loading mechanism for incubation. After the reagent sheet is tested, it needs to be hooked out of the incubation area by a sheet unloading mechanism for unloading.
[0003] Since both the sheet loading and unloading actions need to physically contact the reagent sheet, in a general sample analyzer, the sheet loading mechanism and the sheet unloading mechanism are usually two linear motion mechanisms that move around the incubation tray to meet different conveying paths. The design of the two motion mechanisms will occupy a large structural space for a small-volume analyzer, increase the complexity of motion control, and increase the manufacturing cost of the instrument itself. Summary of the Invention
[0004] The purpose of the present application is to provide a reagent sheet loading and unloading device that can complete the reagent sheet pushing and unloading actions through a set of linear motion mechanisms, simplifying the structure of the sample analyzer.
[0005] The embodiments of the present application are implemented as follows:
[0006] The embodiments of the present application provide a reagent sheet loading and unloading device, including an incubation device and a sheet loading and unloading device. The incubation device has an incubation tank. The sheet loading and unloading device includes a movable workbench and a sheet loading push block and a sheet unloading push block located on the workbench. The sheet loading push block and the sheet unloading push block are arranged in sequence along the sheet loading direction of the workbench. The sheet unloading push block can be switched between a retracted state and an extended state.
[0007] When the incubation tank is in the loading and unloading position, the workbench pushes the reagent sheet along the sheet loading direction to the incubation tank through the sheet loading push block, and the sheet unloading push block is in the retracted state to form an avoidance with the incubation device. Or, the workbench pushes the reagent sheet along the sheet unloading direction out of the incubation tank through the extended sheet unloading push block.
[0008] Optionally, as an implementable manner, a shoulder is provided on the incubation device. When the workbench moves to the incubation tank along the sheet loading direction, the sheet unloading push block and the shoulder abut against each other to make the sheet unloading push block in the retracted state. When the workbench moves out of the incubation tank along the sheet unloading direction, the sheet unloading push block is in the extended state under its own weight.
[0009] Optionally, as an implementable manner, a push block movable slot communicating with the incubation tank is provided at the end of the incubation tank. When the workbench exits the incubation tank along the film unloading direction, the film unloading push block switches from a contracted state to an expanded state in the push block movable slot.
[0010] Optionally, as an implementable manner, the film loading and unloading device further includes a slide rail, a first rotation driving member provided at the end of the slide rail, a rotating shaft connected to the first rotation driving member, and the workbench is slidably arranged on the slide rail and threadedly connected to the rotating shaft. The workbench is driven by the first rotation driving member to linearly slide on the slide rail.
[0011] Optionally, as an implementable manner, a limiting portion is provided on the film unloading push block, and the limiting portion abuts against the workbench when the film unloading push block pushes the reagent film.
[0012] Optionally, as an implementable manner, the incubation device includes a housing and an incubation tray provided in the housing. A plurality of the incubation tanks are arranged on the incubation tray. A first opening for the linear movement of the workbench is provided above the housing, and a second opening communicating with the first opening is provided on the side wall of the housing. The shoulder is provided at one end of the first opening away from the second opening.
[0013] Optionally, as an implementable manner, a conveying table connected to the second opening is further included, and the conveying table divides the second opening into an upper input port and a lower output port.
[0014] Optionally, as an implementable manner, the incubation tray is a circular incubation tray. A plurality of the incubation tanks are provided, and the plurality of incubation tanks are arranged at intervals around the circular incubation tray. A second rotation driving member connected to the incubation tray is provided at the bottom of the housing, and the incubation tray is driven to rotate by the second rotation driving member.
[0015] Optionally, as an implementable manner, the film loading push block is a bent plate provided at the end of the workbench.
[0016] Optionally, as an implementable manner, the side of the film unloading push block away from the film loading push block is an arc surface, and the arc surface extends from the top of the film unloading push block to the bottom of the film unloading push block.
[0017] The beneficial effects of the embodiments of the present application include:
[0018] The reagent sheet loading and unloading device of the present application includes an incubation device and a sheet loading and unloading device. The incubation device has an incubation tank. The sheet loading and unloading device includes a movable workbench and a sheet loading pusher and a sheet unloading pusher located on the workbench. The sheet loading pusher and the sheet unloading pusher are arranged in sequence along the sheet loading direction of the workbench. The sheet unloading pusher can be switched between a retracted state and an extended state. By integrating the functions of sheet loading and unloading on the same workbench and enabling the sheet unloading pusher to freely switch between the retracted state and the extended state, it is ensured that the sheet loading process and the sheet unloading process do not interfere with each other. The traditional two sets of independent linear motion mechanisms are abandoned, greatly saving the internal space of the instrument, and significantly improving the structural compactness of the small sample analyzer. Since only the movement of one workbench and the state switching of the sheet unloading pusher need to be controlled, compared with managing two sets of complex linear motion mechanisms, the burden on the control system is greatly reduced. The risks of faults such as collisions and jams that may occur during the coordinated movement of multiple mechanisms are reduced, the control accuracy and reliability are improved, the requirements for control algorithms and hardware computing power are lowered, thereby shortening the R & D cycle and reducing the R & D cost, and it is also convenient for the later maintenance and fault troubleshooting of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0020] Figure 1 FIG. 1 is one of the structural diagrams of the reagent sheet loading and unloading device provided by the embodiment of the present application;
[0021] Figure 2 FIG. 2 is one of the structural diagrams of the incubation device in the reagent sheet loading and unloading device provided by the embodiment of the present application;
[0022] Figure 3 FIG. 3 is another structural diagram of the incubation device in the reagent sheet loading and unloading device provided by the embodiment of the present application;
[0023] Figure 4 FIG. 4 is the structural diagram of the sheet loading and unloading device in the reagent sheet loading and unloading device provided by the embodiment of the present application.
[0024] Icons: 100 - Reagent loading and unloading chip device; 110 - Incubation device; 111 - Housing; 1111 - First opening; 1112 - Second opening; 1113 - Shoulder; 112 - Incubation tray; 1121 - Incubation groove; 1122 - Pusher moving groove; 113 - First rotary drive member; 120 - Chip loading and unloading device; 121 - Working rack; 122 - Chip loading pusher; 123 - Chip unloading pusher; 1231 - Limiting portion; 124 - Slide rail; 125 - Second rotary drive member; 126 - Rotating shaft; 130 - Conveyor table. Detailed implementation manners
[0025] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and illustrated herein usually can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.
[0027] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.
[0028] In the description of the present application, it should also be noted that, unless otherwise clearly defined and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0029] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, this embodiment provides a reagent sheet loading and unloading device 100, which includes an incubation device 110 and a sheet loading and unloading device 120. The incubation device 110 has an incubation tank 1121. The sheet loading and unloading device 120 includes a movable workbench 121, a sheet loading push block 122 and a sheet unloading push block 123 located on the workbench 121. The sheet loading push block 122 and the sheet unloading push block 123 are arranged in sequence along the sheet loading direction of the workbench 121, and the sheet unloading push block 123 can be switched between a contracted state and an expanded state;
[0030] When the incubation tank 1121 is in the loading and unloading position, the workbench 121 pushes the reagent sheet along the sheet loading direction to the incubation tank 1121 through the sheet loading push block 122, and the sheet unloading push block 123 is in a contracted state to form an avoidance with the incubation device 110, or the workbench 121 pushes the reagent sheet along the sheet unloading direction to exit the incubation tank 1121 through the expanded sheet unloading push block 123.
[0031] Specifically, the incubation device 110 is provided with an incubation tank 1121 for accommodating the reagent sheet and providing a suitable incubation environment for it. The sheet loading and unloading device 120 ingeniously designs a movable workbench 121. The sheet loading push block 122 and the sheet unloading push block 123 are skillfully arranged on the workbench 121, and the sheet loading push block 122 and the sheet unloading push block 123 are arranged in sequence along the sheet loading direction of the workbench 121. The special feature is that the sheet unloading push block 123 has the function of freely switching between a contracted state and an expanded state.
[0032] When the incubation tank 1121 is accurately moved to the loading and unloading position, if a sheet loading operation is to be performed, the workbench 121 drives the sheet loading push block 122 to move towards the incubation tank 1121 under the action of an external driving mechanism (such as a motor, a lead screw, etc.). The sheet loading push block 122 contacts the reagent sheet and pushes it forward steadily along the preset sheet loading direction until the reagent sheet smoothly enters the incubation tank 1121. At this time, the sheet unloading push block 123 is in a contracted state and completely retracts to a position that does not interfere with the sheet loading operation, maintaining sufficient avoidance space with the incubation device 110 to ensure a smooth sheet loading process; on the contrary, if a sheet unloading operation is to be performed, the sheet unloading push block 123 will be pre-switched to the expanded state. Similarly, under the movement of the workbench 121, the sheet unloading push block 123 abuts against the reagent sheet and slowly pushes it out of the incubation tank 1121 along the sheet unloading direction opposite to the sheet loading direction to achieve the unloading of the reagent sheet.
[0033] When using the loading and unloading device 120 of the present application, the control system of the sample analyzer first confirms that the incubation tank 1121 has been accurately moved to the loading and unloading position, and 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 loading and unloading device 120 to move towards the incubation tank 1121. At this time, the unloading push block 123 is in a contracted state, and the loading push block 122 moves forward with the working frame 121 and contacts the reagent tablet to be loaded in the reagent tablet storage area. The loading push block 122 continuously pushes the reagent tablet and advances along the preset loading direction at a stable speed until the reagent tablet completely enters the incubation tank 1121, the working frame 121 stops moving, and the loading operation is completed.
[0034] When the detection process of the sample analyzer ends and the reagent tablet needs to be unloaded, the control system first issues an instruction to switch the unloading push block 123 from the contracted state to the expanded state, and this switching action can be achieved through electromagnetic drive, mechanical linkages, etc. The control system drives the working frame 121 to move in a direction away from the center of the incubation tank 1121. The expanded unloading push block 123 abuts against the reagent tablet in the incubation tank 1121 and pushes the reagent tablet to slowly move out of the incubation tank 1121 along the unloading direction. When the reagent tablet completely leaves the incubation tank 1121 and reaches the specified unloading position, the working frame 121 stops moving, and the unloading push block 123 can be switched back to the contracted state as needed to prepare for the next loading or unloading operation cycle.
[0035] The reagent tablet loading and unloading device 100 of the present application includes an incubation device 110 and a loading and unloading device 120. The incubation device 110 has an incubation tank 1121. The loading and unloading device 120 includes a movable working frame 121 and a loading push block 122 and an unloading push block 123 located on the working frame 121. The loading push block 122 and the unloading push block 123 are arranged in sequence along the loading direction of the working frame 121, and the unloading push block 123 can be switched between a contracted state and an expanded state; by integrating the loading and unloading functions on the same working frame 121, the unloading push block 123 has the function of freely switching between the contracted state and the expanded state to ensure that the loading process and the unloading process do not interfere with each other, abandoning the traditional two sets of independent linear motion mechanisms, greatly saving the internal space of the instrument, and significantly improving the structural compactness of small sample analyzers. Since only the movement of one working frame 121 and the state switching of the unloading push block 123 need to be controlled, compared with managing two sets of complex linear motion mechanisms, the burden on the control system is greatly reduced. The risk of faults such as collisions and jams that may occur during the coordinated movement of multiple mechanisms is reduced, the control accuracy and reliability are improved, the requirements for control algorithms and hardware computing power are reduced, thereby shortening the R & D cycle and reducing the R & D cost, and it is also convenient for the later maintenance and troubleshooting of the equipment.
[0036] In a feasible embodiment of the present application, such as Figure 1 、Figure 2 , Figure 3 and Figure 4 As shown in Figure 2 , Figure 3 , and Figure 4 , a shoulder 1113 is provided on the incubation device 110. When the workbench 121 moves along the film feeding direction to the incubation tank 1121, the film unloading push block 123 and the shoulder 1113 abut against each other so that the film unloading push block 123 is in a contracted state. When the workbench 121 exits the incubation tank 1121 along the film unloading direction, the film unloading push block 123 and the shoulder 1113 are disengaged from abutment and the film unloading push block 123 is in an unfolded state under its own weight.
[0037] Specifically, a shoulder 1113 structure is particularly added to the incubation device 110 part of the reagent film loading 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 film loading and unloading device 120. When the workbench 121 steadily advances along the film feeding direction towards the incubation tank 1121 in accordance with the film feeding process, the film unloading push block 123 will approach the shoulder 1113 as the workbench 121 moves. Once the film unloading push block 123 contacts the shoulder 1113, due to the blocking effect of the shoulder 1113, the film unloading push block 123 will be forced to contract inward, thereby ensuring that during the film feeding operation, the film unloading push block 123 will not cause any obstruction to the film feeding path and the process of the reagent film entering the incubation tank 1121, and ensuring the smoothness and accuracy of the film feeding action. When subsequent film unloading operation is required and the workbench 121 slowly exits the incubation tank 1121 along the film unloading direction, the film unloading push block 123 is no longer restricted by the shoulder 1113. At this time, the film unloading push block 123 naturally swings or moves downward to the unfolded state by its own weight, preparing for the upcoming film unloading pushing action, so that the film unloading push block 123 can smoothly contact and push the reagent film in the incubation tank 1121. By cleverly utilizing the mechanical cooperation between the shoulder 1113 and the film unloading push block 123, automatic switching of the state of the film unloading push block 123 is achieved, without the need for additional complex electronic control devices to control the contraction and expansion of the film unloading push block 123, simplifying the control system design of the device, reducing costs while improving reliability. And this pure mechanical interaction method makes the connection between the film feeding and film unloading processes more natural and smooth, reduces the failure risk caused by state switching errors, and improves the stability and efficiency of the entire film loading and unloading operation.
[0038] In a feasible embodiment of the present application, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a push block movable groove 1122 communicating with the incubation tank 1121 is provided at the end of the incubation tank 1121. When the workbench 121 exits the incubation tank 1121 along the film unloading direction, the film unloading push block 123 switches from the contracted state to the unfolded state in the push block movable groove 1122.
[0039] Specifically, the pushing block moving slot 1122, as the exclusive space for the state conversion of the reagent sheet unloading pushing block 123, plays a crucial role. When the working frame 121 exits the incubation tank 1121 along the unloading direction according to the unloading process, the unloading pushing block 123 will move together with the working frame 121. After entering the area defined by the pushing block moving slot 1122, due to the spatial guidance and constraint of the pushing block moving slot 1122, the unloading pushing block 123 can smoothly and accurately switch from the originally possibly restricted contracted state to the expanded state. The shape and size of the pushing block moving slot 1122 are perfectly adapted to the movement trajectory of the unloading pushing block 123, ensuring that the unloading pushing block 123 will not have abnormal situations such as jamming or deviation during the switching process, providing a solid guarantee for the subsequent smooth pushing of the reagent sheet for unloading.
[0040] In a feasible embodiment of the present application, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the loading and unloading device 120 further includes a slide rail 124, a first rotary driving member 113 disposed at the end of the slide rail 124, a rotating shaft 126 connected to the first rotary driving member 113, and the working frame 121 is slidably disposed on the slide rail 124 and is threadedly connected to the rotating shaft 126. The first rotary driving member 113 drives the working frame 121 to linearly slide on the slide rail 124.
[0041] Specifically, the present application provides a slide rail 124 as the moving track of the working frame 121 to provide stable support and guidance for the linear movement of the working frame 121. A first rotary driving member 113 is installed at the end of the slide rail 124. Commonly, such as a rotary motor, the first rotary driving member 113 is rigidly connected to the rotating shaft 126 through a coupling or other connection means. The bottom of the working frame 121 is slidably matched with the slide rail 124 through a slider or other adapted structure, and at the same time, a nut or a similar threaded structure threadedly connected to the rotating shaft 126 is provided on the working frame 121. When the first rotary driving member 113 receives the driving instruction of the control system and starts to rotate, the rotating shaft 126 rotates synchronously. Using the principle of screw drive, the working frame 121 threadedly connected to the rotating shaft 126 will linearly slide along the slide rail 124 under the constraint of the slide rail 124, realizing precise displacement control in the loading and unloading directions to meet the requirements for the position of the working frame 121 in different operation stages.
[0042] In a feasible embodiment of the present application, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a limiting portion 1231 is provided on the unloading pushing block 123, and the limiting portion 1231 abuts against the working frame 121 when the unloading pushing block 123 pushes the reagent sheet.
[0043] The unloading block 123 is structurally provided with a limiting part 1231. The limiting part 1231 is located at a specific position of the unloading block 123 and cooperates with the corresponding part of the working frame 121. When the unloading block 123 performs the task of pushing the reagent strip for unloading, as the unloading block 123 extends outward and applies a thrust force, due to the reaction force, there is a risk that the unloading block 123 itself may displace backward or swing excessively. This may cause the unloading block 123 to be unable to continuously and stably apply a thrust force to the reagent strip, or even break away from the effective contact with the reagent strip. The existence of the limiting part 1231 effectively solves this problem. When the unloading block 123 pushes the reagent strip, the limiting part 1231 will be in close contact with the corresponding abutting part on the working frame 121, forming a stable support and limiting structure, restricting the excessive displacement and swing of the unloading block 123, ensuring that the unloading block 123 always maintains the best position for applying the thrust force, and stably and efficiently pushing the reagent strip out of the incubation tank 1121.
[0044] During unloading, the working frame 121 drives the unfolded unloading block 123 to move along the unloading direction. The unloading block 123 contacts the reagent strip in the incubation tank 1121 and starts to apply a thrust force. As the thrust force increases, the unloading block 123 has a tendency to move backward. At this time, the limiting part 1231 on the unloading block 123 gradually approaches and finally abuts against the working frame 121, preventing the unloading block 123 from further moving backward or swinging, and maintaining the stable contact state between the unloading block 123 and the reagent strip. Under the guarantee of the limiting part 1231, the unloading block 123 continuously pushes the reagent strip until it completely leaves the incubation tank 1121, completing the unloading operation.
[0045] In a feasible embodiment of the present application, as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, the incubation device 110 includes a housing 111 and an incubation tray 112 arranged inside the housing 111. A plurality of incubation tanks 1121 are arranged on the incubation tray 112. A first opening 1111 for the linear movement of the working frame 121 is arranged above the housing 111. A second opening 1112 communicating with the first opening 1111 is arranged on the side wall of the housing 111. A shoulder 1113 is arranged at one end of the first opening 1111 far from the second opening 1112.
[0046] Furthermore, it further includes a conveying table 130 connected to the second opening 1112. The conveying table 130 divides the second opening 1112 into an upper input port and a lower output port.
[0047] The housing 111 of the present application serves as an external protection and support structure, providing a stable installation environment and physical protection for internal components. The incubation tray 112 is located within the housing 111 and is a key component for carrying multiple incubation slots 1121. The multiple incubation slots 1121 are spaced apart on the incubation tray 112 and are used to simultaneously accommodate multiple reagent strips for incubation, thereby improving the sample detection efficiency. A first opening 1111 is specifically created above the housing 111. The size and shape of this opening are adapted to the linear movement trajectory of the workbench 121, providing an unobstructed access channel for the workbench 121 and ensuring that the loading and unloading of strips can be smoothly carried out above the incubation device 110. At the same time, a second opening 1112 connected to the first opening 1111 is provided on the side wall of the housing 111. The second opening 1112 has a unique functional purpose. It is connected to the transfer table 130 and is used to guide the input and output paths of the reagent strips. The shoulder 1113, a key structure, is provided at one end of the first opening 1111 away from the second opening 1112. Its position layout closely cooperates with the loading and unloading process of the workbench 121 to control the state switching of the unloading push block 123.
[0048] A transfer table 130 is additionally provided on the basis of the incubation device 110 and is closely connected to the second opening 1112. This transfer table 130 serves as a transfer platform for the reagent strips to enter and exit the incubation device 110 and plays a crucial role in connecting the upper and lower parts. It divides the second opening 1112 into an upper input port and a lower output port, with a unique structural design. When loading the strip, an external conveying device transports the reagent strip to the upper area of the transfer table 130 and precisely feeds it into the incubation device 110 through the input port, seamlessly docking with the loading action of the workbench 121. During the unloading stage, after the reagent strip that has completed the detection is pushed out of the incubation slot 1121 by the unloading push block 123, it falls onto the transfer table 130 through the lower output port of the second opening 1112, and then the transfer table 130 transfers the reagent strip to a subsequent designated location, such as a waste collection area or a waiting area for other secondary detection processes, ensuring the orderly flow of the reagent strip within the entire sample analyzer.
[0049] In a feasible embodiment of the present application, as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, the incubation tray 112 is a circular incubation tray 112. There are multiple incubation slots 1121, and the multiple incubation slots 1121 are spaced apart and arranged in a circular pattern around the circular incubation tray 112. A second rotation driving member 125 connected to the incubation tray 112 is provided at the bottom of the housing 111, and the incubation tray 112 is driven to rotate by the second rotation driving member 125.
[0050] Specifically, the incubation tray 112 is designed in a circular shape, and a plurality of incubation slots 1121 are evenly spaced and arranged around the circular incubation tray 112. This layout makes full use of the circumferential space and realizes the efficient incubation layout of multiple reagent chips. A second rotation driving member 125 is installed at the bottom of the housing 111, usually a combination of a motor and a reducer, and is connected to the center of the bottom of the incubation tray 112 through a coupling or gear transmission. When it is necessary to switch the position of the incubation slot 1121 to meet the loading and unloading requirements of different reagent chips or optimize the incubation sequence, the second rotation driving member 125 receives the instruction of the control system and starts to rotate, driving the incubation tray 112 to slowly rotate around the central axis, and accurately rotating the target incubation slot 1121 to the loading and unloading position corresponding to the working rack 121, realizing an efficient and flexible switching operation of the incubation slot 1121, and cooperating with the loading and unloading device 120 to improve the overall working efficiency of the sample analyzer.
[0051] In a feasible embodiment of the present application, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the loading pusher 122 is a bent plate provided at the end of the working rack 121. The loading pusher 122 is designed as a bent plate structure provided at the end of the working rack 121. This unique shape design is based on the mechanical and spatial requirements of the loading operation. One end of the bent plate is fixed to the end of the working rack 121 to form a stable connection, and the other end extends outward and bends. The bending angle is adapted to the outer contour and loading path of the reagent chip. When contacting the reagent chip, it can accurately fit the side of the reagent chip with the bent part, providing a stable and uniform thrust. Compared with the traditional block-shaped or rod-shaped loading structure, the bent plate is less likely to cause abnormal situations such as deviation and flipping of the reagent chip during the pushing process, ensuring that the reagent chip smoothly enters the incubation slot 1121 along the predetermined loading direction and improving the loading success rate.
[0052] Optionally, as an implementable manner, the side of the unloading pusher 123 away from the loading pusher 122 is an arc surface, and the arc surface extends from the top to the bottom of the unloading pusher 123. This arc surface design mainly considers the interaction characteristics with the shoulder 1113 during the loading and unloading operation, ensuring that when the unloading pusher 123 is rotatably connected to the working rack 121, the unloading pusher 123 can freely switch between the contracted state and the expanded state.
[0053] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A reagent sheet loading and unloading device, characterized in that, It includes an incubation device and a wafer loading and unloading device. The incubation device has an incubation tank. The wafer loading and unloading device includes a movable workbench, a wafer loading pusher block and a wafer unloading pusher block located on the workbench. The wafer loading pusher block and the wafer unloading pusher block are arranged in sequence along the wafer loading direction of the workbench, and the wafer unloading pusher block can be switched between a contracted state and an expanded state; When the incubation tank is in the loading and unloading position, the workbench pushes the reagent wafer along the wafer loading direction to the incubation tank through the wafer loading pusher block, and the wafer unloading pusher block is in the contracted state to form an avoidance with the incubation device, or the workbench pushes the reagent wafer to exit the incubation tank along the wafer unloading direction through the wafer unloading pusher block in the expanded state.
2. The reagent sheet loading and unloading device according to claim 1, wherein A shoulder is provided on the incubation device. When the workbench moves to the incubation tank along the wafer loading direction, the wafer unloading pusher block and the shoulder abut to make the wafer unloading pusher block in the contracted state. When the workbench exits the incubation tank along the wafer unloading direction, the wafer unloading pusher block and the shoulder are disengaged from abutment and are in the expanded state under its own weight.
3. The reagent inlet and outlet chip device according to claim 1 or 2, characterized in that A pusher block activity groove communicating with the incubation tank is provided at the end of the incubation tank. When the workbench exits the incubation tank along the wafer unloading direction, the wafer unloading pusher block is switched from the contracted state to the expanded state in the pusher block activity groove.
4. The reagent sheet loading and unloading device according to claim 1, wherein The wafer loading and unloading device further includes a slide rail, a first rotary driving member provided at the end of the slide rail, a rotating shaft connected to the first rotary driving member, and the workbench is slidably arranged on the slide rail and is threadedly connected to the rotating shaft. The workbench is driven by the first rotary driving member to linearly slide on the slide rail.
5. The reagent sheet loading and unloading device according to claim 1, wherein, A limiting portion is provided on the wafer unloading pusher block, and the limiting portion abuts against the workbench when the wafer unloading pusher block pushes the reagent wafer.
6. The reagent inlet / outlet chip device according to claim 2, characterized in that, The incubation device includes a housing and an incubation tray provided in the housing. There are a plurality of incubation tanks, and the plurality of incubation tanks are arranged on the incubation tray. A first opening for the linear movement of the workbench is provided above the housing, a second opening communicating with the first opening is provided on the side wall of the housing, and the shoulder is provided at one end of the first opening away from the second opening.
7. The reagent loading and unloading chip device according to claim 6, wherein It further includes a conveying table connected to the second opening, and the conveying table divides the second opening into an upper input port and a lower output port.
8. The reagent sheet loading and unloading device according to claim 6, wherein, The incubation tray is a circular incubation tray, and the plurality of incubation tanks are arranged at intervals around the circular incubation tray. A second rotary driving member connected to the incubation tray is provided at the bottom of the housing, and the incubation tray is driven to rotate by the second rotary driving member.
9. The reagent sheet loading and unloading device according to claim 1, wherein The wafer loading pusher block is a bent plate provided at the end of the workbench.
10. The reagent sheet loading and unloading device according to claim 1, wherein One side of the wafer unloading pusher block away from the wafer loading pusher block is an arc surface, and the arc surface extends from the top of the wafer unloading pusher block to the bottom of the wafer unloading pusher block.