Automatic sampling device of immune quantitative analyzer
By designing an automatic positioning and squeezing sampling device in the immunoassay analyzer, the problem of sample solution drop deviation was solved, and automatic positioning and dropping of the sample solution were achieved, thus improving sampling efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN CEYI BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-08
AI Technical Summary
Existing immunoassay analyzers are prone to deviation during the sample solution dripping process, making it impossible to complete automatic sampling.
An automatic sampling device including a positioning block, a connecting block, a squeezing block, and an inclined block was designed. The device automatically positions the sample tube and uses a drive motor and a rigid spring to achieve automatic dripping of the sample solution, thus avoiding deviation.
It enables automatic positioning and dripping of sample solutions, avoiding deviation and improving sampling efficiency and accuracy.
Smart Images

Figure CN224216359U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of analyzer technology, specifically an automatic sampling device for an immunoassay analyzer. Background Technology
[0002] The immunoassay analyzer consists of a surgical panel, sample delivery component, cold light source, photoelectric sensor, thermal printer, main circuit board, power adapter, data cable, calibration card, high-value quality control card, and low-value quality control card.
[0003] Currently, operators frequently use immunoassay analyzers when testing the composition of sample solutions. However, existing immunoassay analyzers require the operator to first insert the test card into the analyzer's slot. The slot automatically positions the test card to ensure proper installation. Afterward, the operator manually squeezes the sample tube to allow the sample solution inside to drip smoothly into the test port of the test card. This method is prone to causing the sample solution to fall off-center, preventing automatic sampling. Therefore, improvements are needed. Utility Model Content
[0004] The purpose of this invention is to address the above-mentioned problems by providing an automatic sampling device for an immunoassay analyzer, which has the advantages of automatic positioning and squeezing sampling.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic sampling device for an immunoassay analyzer, comprising an analyzer body, a movable slot block movably mounted in the middle of the bottom right side of the analyzer body, a detection card body movably mounted inside the movable slot block, a fixing block fixedly mounted on the right side of the analyzer body, located directly above the movable slot block and the detection card body, a positioning block fixedly mounted on the top of the inner cavity of the fixing block, a vertical rod movably sleeved on the top of the fixing block located outside the positioning block, the bottom end of the vertical rod penetrating the top of the fixing block and extending into the interior of the fixing block, and a connecting block fixedly mounted thereon, the connecting block located outside the positioning block, an inner groove formed on the inner surface of the positioning block, a squeezing block movably mounted inside the inner groove, a connecting rod fixedly connected to the outer side of the squeezing block, the other end of the connecting rod penetrating the positioning block and extending into the exterior of the positioning block, and an inclined block fixedly mounted thereon, the outer surface of the inclined block movably connected to the inner surface of the connecting block.
[0006] As a preferred embodiment of this utility model, a rigid spring is movably sleeved on the outer surface of the connecting rod, one end of the rigid spring is fixedly connected to the outer side of the extrusion block, and the other end of the rigid spring is fixedly connected to the inner wall of the positioning block.
[0007] As a preferred embodiment of this utility model, a fixing plate is fixedly installed at the bottom right side of the inner cavity of the fixing block, and a drive motor is fixedly installed at the top of the fixing plate.
[0008] As a preferred embodiment of this invention, a lead screw is fixedly sleeved at the other end of the output shaft of the drive motor.
[0009] As a preferred embodiment of this invention, the outer surface of the lead screw is threaded with a connecting frame, and the top end of the connecting frame is fixedly connected to the bottom of the connecting block.
[0010] As a preferred embodiment of this utility model, a touch screen is fixedly installed inside the top of the analyzer body, and a data port is provided at the bottom of the back of the analyzer body.
[0011] As a preferred embodiment of this invention, the number of vertical rods is four, the four vertical rods are of the same size, and the four vertical rods are distributed around the top of the connecting block.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model incorporates a positioning block, a connecting block, a squeezing block, and an inclined block. The positioning block automatically positions the sample tube, aligning the center of the bottom of the sample tube with the center of the detection port on the detection card. The upward movement of the connecting block causes its inner surface to press and push the outer side of the inclined block, which in turn drives the connecting rod and the squeezing block outward. At this point, the squeezing blocks automatically squeeze the sample tube, allowing the sample solution inside to drip automatically into the detection port on the detection card, effectively preventing the sample solution from deviating from its intended drip position.
[0014] 2. This utility model, by setting up vertical rods, rigid springs, drive motors and lead screws, will cause the lead screws to rotate when the drive motor is running. At this time, due to the limiting effect of the four vertical rods, the connecting frame can drive the connecting block to move vertically up and down. Due to the setting of rigid springs, the subsequent extrusion block can have a good automatic reset effect. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a structural diagram of the back of the present invention;
[0017] Figure 3 This is a bottom view of the structure of this utility model;
[0018] Figure 4 This is a cross-sectional structural diagram of the present invention;
[0019] Figure 5 This is a schematic diagram of the internal structure of the fixing block of this utility model;
[0020] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point A in the middle.
[0021] In the diagram: 1. Analyzer body; 2. Movable slot block; 3. Detection card body; 4. Fixing block; 5. Positioning block; 6. Vertical rod; 7. Connecting block; 8. Inner groove; 9. Pressing block; 10. Connecting rod; 11. Inclined block; 12. Rigid spring; 13. Fixing plate; 14. Drive motor; 15. Lead screw; 16. Connecting frame; 17. Touch screen display; 18. Data port. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figures 1 to 6 As shown, this utility model provides an automatic sampling device for an immunoassay analyzer, including an analyzer body 1. A movable slot block 2 is movably installed in the middle of the bottom right side of the analyzer body 1. A test card body 3 is movably installed inside the movable slot block 2. A fixing block 4 is fixedly installed on the right side of the analyzer body 1, located directly above the movable slot block 2 and the test card body 3. A positioning block 5 is fixedly installed on the top of the inner cavity of the fixing block 4. A vertical rod 6 located outside the positioning block 5 is movably sleeved on the top of the fixing block 4. The bottom end of the vertical rod 6 passes through the top of the fixing block 4 and extends into the interior of the fixing block 4, where a connecting block 7 is fixedly installed. The connecting block 7 is located outside the positioning block 5. An inner groove 8 is formed on the inner surface of the positioning block 5. A squeezing block 9 is movably installed inside the inner groove 8. A connecting rod 10 is fixedly connected to the outer side of the squeezing block 9. The other end of the connecting rod 10 passes through the positioning block 5 and extends into the exterior of the positioning block 5, where a wedge block 11 is fixedly installed. The outer surface of the wedge block 11 is movably connected to the inner surface of the connecting block 7.
[0024] The operator can insert the sample tube into the positioning block 5. At this time, the center of the bottom end of the sample tube is aligned with the center of the detection port of the detection card body 3. When the connecting block 7 moves upward, it will drive the vertical rod 6 to move upward as well. At this time, the inner surface of the connecting block 7 will squeeze and push the outer surface of the inclined block 11, so that the inclined block 11 can push the connecting rod 10 and the squeezing block 9 into the positioning block 5. Finally, the multiple squeezing blocks 9 can automatically squeeze the sample tube, so that the detection liquid inside the sample tube can drip smoothly into the sampling port of the detection card body 3, thereby avoiding the situation of deviation and falling due to manual dripping.
[0025] Among them, a rigid spring 12 is movably sleeved on the outer surface of the connecting rod 10. One end of the rigid spring 12 is fixedly connected to the outer side of the pressing block 9, and the other end of the rigid spring 12 is fixedly connected to the inner wall of the positioning block 5.
[0026] Due to the design of the rigid spring 12, the extrusion block 9 has a good automatic reset effect, so that the extrusion block 9 can be recycled into the inner groove 8 in the future.
[0027] A fixing plate 13 is fixedly installed at the bottom right side of the inner cavity of the fixing block 4, and a drive motor 14 is fixedly installed at the top of the fixing plate 13.
[0028] Due to the design of the fixing plate 13, the drive motor 14 can be well fixed and supported.
[0029] Among them, the other end of the output shaft of the drive motor 14 is fixedly sleeved with a lead screw 15.
[0030] When the drive motor 14 is running, it will cause the lead screw 15 to rotate.
[0031] The lead screw 15 has a connecting bracket 16 threaded onto its outer surface, and the top of the connecting bracket 16 is fixedly connected to the bottom of the connecting block 7.
[0032] When the lead screw 15 rotates, it will cause the connecting bracket 16 to drive the connecting block 7 to move upward.
[0033] The analyzer body 1 has a touch screen 17 fixedly installed inside the top of the analyzer body 1, and a data port 18 is opened at the bottom of the back of the analyzer body 1.
[0034] The design of the touch display screen 17 facilitates touch operation for the operator, while the design of multiple data ports 18 allows for data cable connection.
[0035] There are four vertical rods 6, all of the same size, which are arranged around the top of the connecting block 7.
[0036] The design of the four vertical rods 6 provides a good limiting effect on the connecting block 7, enabling it to move up and down stably.
[0037] Working principle and usage process of this utility model:
[0038] First, the operator inserts the detection card body 3 into the movable card slot 2. Then, the movable card slot 2 automatically positions the detection card body 3 to check whether it is installed in place.
[0039] Next, the operator inserts the sample tube into the positioning block 5, aligning the center of the bottom of the sample tube with the center of the detection port inside the detection card body 3. Then, the operator starts the drive motor 14, causing the lead screw 15 to rotate. At this time, the connecting frame 16 will move upward on the outer surface of the lead screw 15, allowing the inner surface of the connecting block 7 to press and push the outer surface of the inclined block 11. Then, the connecting rod 10 will push the squeezing block 9 into the positioning block 5. At this time, the outer surfaces of multiple squeezing blocks 9 will press and push the outer surface of the sample tube, allowing the sample solution inside the sample tube to drip smoothly down into the detection port of the detection card body 3, thus completing the automatic sampling and addition of the sample solution.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automated sampling device for an immunoassay analyzer, comprising an analyzer body (1), characterized in that: A movable slot block (2) is movably installed in the middle of the bottom right side of the analyzer body (1). A detection card body (3) is movably installed inside the movable slot block (2). A fixing block (4) is fixedly installed on the right side of the analyzer body (1) and located directly above the movable slot block (2) and the detection card body (3). A positioning block (5) is fixedly installed on the top of the inner cavity of the fixing block (4). A vertical rod (6) located outside the positioning block (5) is movably sleeved on the top of the fixing block (4). The bottom end of the vertical rod (6) penetrates the top of the fixing block (4) and... A connecting block (7) is fixedly installed inside the fixed block (4). The connecting block (7) is located outside the positioning block (5). An inner groove (8) is opened on the inner surface of the positioning block (5). An extrusion block (9) is movably installed inside the inner groove (8). A connecting rod (10) is fixedly connected to the outer side of the extrusion block (9). The other end of the connecting rod (10) passes through the positioning block (5) and extends to the outside of the positioning block (5). An inclined block (11) is fixedly installed thereon. The outer surface of the inclined block (11) is movably connected to the inner surface of the connecting block (7).
2. The automatic sampling device for an immunoassay analyzer according to claim 1, characterized in that: A rigid spring (12) is movably sleeved on the outer surface of the connecting rod (10). One end of the rigid spring (12) is fixedly connected to the outer side of the pressing block (9), and the other end of the rigid spring (12) is fixedly connected to the inner wall of the positioning block (5).
3. The automatic sampling device for an immunoassay analyzer according to claim 1, characterized in that: A fixing plate (13) is fixedly installed at the bottom right side of the inner cavity of the fixing block (4), and a drive motor (14) is fixedly installed at the top of the fixing plate (13).
4. The automatic sampling device for an immunoassay analyzer according to claim 3, characterized in that: A lead screw (15) is fixedly sleeved at the other end of the output shaft of the drive motor (14).
5. The automatic sampling device for an immunoassay analyzer according to claim 4, characterized in that: The outer surface of the lead screw (15) is threaded with a connecting frame (16), and the top of the connecting frame (16) is fixedly connected to the bottom of the connecting block (7).
6. The automatic sampling device for an immunoassay analyzer according to claim 1, characterized in that: The analyzer body (1) has a touch screen (17) fixedly installed inside the top of the body, and a data port (18) is provided at the bottom of the back of the analyzer body (1).
7. The automatic sampling device for an immunoassay analyzer according to claim 1, characterized in that: There are four vertical rods (6), all of which are the same size and are distributed around the top of the connecting block (7).