A biochemical analyzer sample collection cup fixing mechanism

Abstract

The utility model discloses a biochemical analysis appearance with sample collection cup fixing mechanism, including upper disc, lower disc and connecting column, the upper disc is connected with the connecting column side through the first connecting frame, the lower disc is connected with the connecting column side through the second connecting frame, a plurality of upper fixed slots are equipped with on the upper disc, the top of lower disc is equipped with a plurality of lower fixed slots, the inside symmetry of upper fixed slot is equipped with first sliding slot, and the fixed block is horizontally slidably arranged in first sliding slot, the side of first sliding slot is equipped with second sliding slot, and the bottom of upper disc is penetrated by second sliding slot, is equipped with push assembly in second sliding slot, and push assembly pushes the fixed block and moves to the axial direction of upper fixed slot.

Description

Technical Field

[0001] This utility model belongs to the technical field of biochemical analyzers, and in particular relates to a sample collection cup fixing mechanism for a biochemical analyzer. Background Technology

[0002] A biochemical analyzer, also known as a biochemical analyzer, is a precision instrument that uses photoelectric colorimetry to quantitatively analyze specific chemical components in body fluids. Its workflow is as follows: first, the sample is injected into a sample collection cup; then, multiple collection cups are sequentially placed into the fixing slot of the reagent tray; subsequently, the reagent tray is installed onto the reagent tray chuck of the biochemical analyzer. The instrument's internal rotating motor drives the reagent tray to complete a series of automated operations, thereby achieving biochemical detection. However, existing technology has significant drawbacks: to facilitate the placement of the sample collection cups, the diameter of the fixing slot is usually designed to be larger than the outer diameter of the collection cup. This results in the collection cups not being securely fixed in the reagent tray, making them prone to shaking or shifting when the reagent tray rotates at high speed. This instability causes the sampling needle of the biochemical analyzer to frequently touch the inner wall of the collection cup when drawing samples, potentially damaging not only the tip precision of the sampling needle but also the sample cup itself. Utility Model Content

[0003] Based on the above background, the purpose of this utility model is to provide a sample collection cup fixing mechanism for a biochemical analyzer.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A sample collection cup fixing mechanism for a biochemical analyzer includes an upper disk, a lower disk, and a connecting column;

[0006] The upper and lower disks are both located on the outside of the connecting column and are coaxially arranged with the connecting column.

[0007] The upper disc is connected to the side of the connecting column via a first connecting frame;

[0008] The lower disk is connected to the side of the connecting column via a second connecting frame;

[0009] The upper disc is provided with multiple upper fixing grooves;

[0010] The top of the lower disc is provided with multiple lower fixing grooves; the lower fixing grooves correspond one-to-one with the upper fixing grooves;

[0011] The upper fixing groove is symmetrically provided with a first sliding groove, and a fixing block is slidably provided in the first sliding groove. The opposite side of the two fixing blocks is arc-shaped.

[0012] A second sliding groove is provided on the side of the first sliding groove, and the second sliding groove passes through the bottom of the upper disk;

[0013] The second sliding groove is provided with a pushing component, which pushes the fixed block to move upward in the direction of the axis of the fixed groove.

[0014] With the above technical solution, the sample collection cups containing the samples are placed into the upper disc in sequence. The upper and lower fixing grooves limit the upper and lower ends of the sample collection cups. After all the sample collection cups are placed, the moving and pushing component drives the two fixing blocks in the upper fixing groove to move relative to each other, and clamps the sides of the sample collection cups to make the sample collection cups stably fixed in the upper fixing grooves. This is beneficial for the stable and accurate operation of the subsequent process of the biochemical analyzer.

[0015] Furthermore, the pushing component includes a first push block, which is wedge-shaped and is longitudinally slidably disposed within a second sliding groove;

[0016] The side of the fixing block is connected to a second push block. The side of the second push block away from the fixing block is set with an incline, and the incline side of the second push block is in contact with the incline side of the first push block.

[0017] The first push block has a first connecting block at its bottom;

[0018] The bottom of the first connecting block is connected to a ring frame;

[0019] The ring is positioned below the upper disc.

[0020] Through the above technical solution, by pushing the ring frame upward, the first connecting block above the ring frame moves upward, thereby driving the first push block upward. Through the inclined surface setting of the first and second push blocks, and the limiting effect of the first and second sliding grooves, the second push block and the fixed block move laterally to clamp the side of the sample collection cup.

[0021] Furthermore, a limiting groove is provided on the side of the first push block, and a limiting block is provided on the side of the second push block;

[0022] The limiting groove and the limiting block are T-shaped, and the limiting block is slidably disposed in the limiting groove.

[0023] With the above technical solution, when the first push block moves down, the limiting block and the limiting groove limit the second push block to move away from the center of the upper fixed groove, thereby causing the fixed block to return to the first sliding groove.

[0024] Furthermore, a third connecting frame is provided on the inner side of the ring frame, and the third connecting frame is slidably connected to the connecting column;

[0025] The first connecting frame is rotatably provided with a threaded rod, and the number of the threaded rods is at least one.

[0026] The threaded rod is threadedly connected to the third connecting frame.

[0027] The above technical solution allows the third connecting frame to move up and down by rotating the threaded rod.

[0028] Furthermore, a nut is provided at the lower end of the threaded rod.

[0029] The lower end face of the third connecting frame can be fixed by rotating the nut using the above technical solution.

[0030] Furthermore, the bottom of the connecting post is provided with a snap-fit ​​groove.

[0031] The above technical solution connects the sample mounting slot of the instrument via a snap-fit ​​groove.

[0032] Furthermore, the top side of the connecting column is provided with a rotating groove, which is semi-circular, and a handle is provided inside the rotating groove.

[0033] The above technical solution facilitates the removal of the connecting column, upper disc, and lower disc via the handle.

[0034] Furthermore, the lower fixing groove is conical.

[0035] The above technical solution provides better fixation for the bottom of the sample collection cup.

[0036] Furthermore, the curved surface of the fixing block is provided with an anti-slip pad.

[0037] The above technical solution increases the friction between the fixing block and the sample collection cup by using an anti-slip pad, and the anti-slip pad can also protect the side of the sample collection cup.

[0038] This utility model has the following beneficial effects:

[0039] 1. Place the sample collection cups containing the samples into the upper disc one by one. The upper and lower fixing slots limit the upper and lower ends of the sample collection cups. After all the sample collection cups are placed in, the moving push component drives the two fixing blocks in the upper fixing slot to move relative to each other, centering and clamping the sides of the sample collection cups, so that the sample collection cups are stably fixed in the upper fixing slots and centered, avoiding inaccurate sampling by the sampling needle or collision with the side wall of the collection cup, which is conducive to the stable and accurate operation of subsequent processes of the biochemical analyzer.

[0040] 2. By pushing the ring frame upward, the first connecting block above the ring frame moves upward, which in turn moves the first push block upward. Through the inclined surfaces of the first and second push blocks, and the limiting effect of the first and second sliding grooves, the second push block and the fixing block move laterally to clamp the side of the sample collection cup. The anti-slip pad increases the friction between the fixing block and the sample collection cup, and the anti-slip pad can protect the side of the sample collection cup. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0042] Figure 1 This is a cross-sectional view of the present invention;

[0043] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0044] Figure 3 This is a three-dimensional structural diagram of the ring frame of this utility model;

[0045] Figure 4 This is a three-dimensional structural diagram of the first pusher block and the fixing block of this utility model.

[0046] Figure 5 This is a cross-sectional structural diagram of the upper fixing groove of this utility model;

[0047] Figure 6 This is a three-dimensional structural diagram of the connecting column and handle of this utility model;

[0048] Figure 7 This is a three-dimensional structural diagram of the upper disc / connecting column / lower disc of this utility model after installation in the mounting slot of the biochemical analyzer.

[0049] Wherein: 1. Upper disc; 11. First connecting frame; 12. Upper fixing groove; 13. First sliding groove; 14. Fixing block; 15. Second sliding groove;

[0050] 2. Lower disc; 21. Second connecting frame; 22. Lower fixing groove;

[0051] 3. Connecting post; 31. Rotating groove; 32. Handle; 33. Snap-fit ​​groove;

[0052] 4. Ring frame; 41. First push block; 42. Second push block; 43. First connecting block; 44. Limiting block; 45. Limiting groove; 46. Threaded rod; 47. Third connecting frame;

[0053] 5. Sample collection cup;

[0054] 6. Mounting slot. Detailed Implementation

[0055] 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.

[0056] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0057] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0058] like Figure 1-7As shown, a sample collection cup fixing mechanism for a biochemical analyzer includes an upper disc 1, a lower disc 2, and a connecting column 3. Both the upper disc 1 and the lower disc 2 are located outside the connecting column 3 and are coaxially arranged with it, with the upper disc 1 above the lower disc 2. The bottom of the connecting column 3 has a locking groove 33, which engages with the mounting mechanism at the bottom of the sample mounting slot 6 in the biochemical analyzer. The sample mounting area of ​​the biochemical analyzer is based on existing technology, such as the sample mounting area of ​​the Mindray BS-200 biochemical analyzer, which consists of a mounting slot 6 and a detachable turntable. A driving mechanism within the mounting slot 6 drives the turntable to rotate regularly, allowing the sampling needle of the biochemical analyzer to collect samples. The upper disc 1 is connected to the side of the connecting column 3 via a first connecting bracket 11; the lower disc 2 is connected to the side of the connecting column 3 via a second connecting bracket 21. Multiple upper fixing slots 12 are provided through the upper disc 1 to fix the upper end of the sample collection cup 5; multiple lower fixing slots 12 are provided on the top of the lower disc 2. The lower fixing groove 22 is conical and is used to fix the lower end of the sample collection cup 5. The lower fixing groove 22 corresponds to the upper fixing groove 12. The upper fixing groove 12 has a first sliding groove 13 symmetrically opened inside. The fixing block 14 is laterally slidable in the first sliding groove 13. The opposite side of the two fixing blocks 14 is arc-shaped, and the arc surface of the fixing block 14 is provided with an anti-slip pad. The two fixing blocks 14 in any one of the first sliding grooves 13 are located in the radial direction of the upper disk 1. The side of the first sliding groove 13 is provided with a second sliding groove 15, which penetrates the bottom of the upper disk 1. The second sliding groove 15 is provided with a pushing component, which pushes the fixing block 14 to move in the axial direction of the upper fixing groove 12, thereby clamping and fixing the sample collection cup 5. The top side of the connecting column 3 is provided with a rotating groove 31. The rotating groove 31 is semi-circular, and a handle 32 is rotatably provided in the rotating groove 31. The connecting column 3 can be lifted by holding the handle 32.

[0059] Sample collection cups 5 containing samples are placed sequentially into the upper disc 1. The upper fixing groove 12 and the lower fixing groove 22 limit the upper and lower ends of the sample collection cups 5. After all the sample collection cups 5 are placed, the moving push component drives the two fixing blocks 14 in the upper fixing groove 12 to move relative to each other, centering and clamping the sides of the sample collection cups 5. The anti-slip pad increases the friction between the fixing blocks 14 and the sample collection cups 5, and the anti-slip pad can also protect the sides of the sample collection cups 5, so that the sample collection cups 5 are stably fixed in the upper fixing groove 12. Then, the snap-fit ​​groove 33 at the bottom of the connecting column 3 is snapped into the sample mounting groove 6 of the biochemical analyzer. The connecting column 3 is rotated by the driving component of the biochemical analyzer, thereby realizing the sampling of each sample collection cup 5, which is conducive to the stable and accurate operation of the subsequent process of the biochemical analyzer.

[0060] Specifically, the pushing component includes a first push block 41, which is wedge-shaped with an inclined surface on the side near the fixed block 14, and the first push block 41 is longitudinally slidably disposed within a second sliding groove 15; a second push block 42 is connected to the side of the fixed block 14, with an inclined surface on the side of the second push block 42 away from the fixed block 14, and the inclined surface of the second push block 42 contacts the inclined surface of the first push block 41; a first connecting block 43 is provided at the bottom of the first push block 41; an annular frame 4 is connected to the bottom of the first connecting block 43; the annular frame 4 is disposed below the upper disc 1, and multiple first connecting blocks 43 are connected to the top of the annular frame 4, and are arranged in a circumferential array at the top of the annular frame 4; a limiting groove 45 is provided on the side of the first push block 41, and a limiting block 44 is provided on the side of the second push block 42; the limiting groove 45 and the limiting block 44 are T-shaped, and the limiting block 44 is slidably disposed in the limiting groove 45; a third connecting frame 47 is provided inside the annular frame 4. 7 is slidably connected to the connecting column 3; the first connecting frame 11 is rotatably provided with a threaded rod 46, and the number of threaded rods 46 is at least one; the threaded rod 46 is threadedly connected to the third connecting frame 47, and the lower end of the threaded rod 46 is provided with a nut. When the sample collection cup 5 is placed into the upper ring in sequence, the third connecting frame 47 is moved upward by rotating the threaded rod 46, the third connecting frame 47 moves the ring frame 4 upward, thereby moving all the first connecting blocks 43 upward, the first connecting blocks 43 move the first push block 41 upward in the second sliding groove, thereby moving the second push block 42 to slide in the first sliding groove, pushing the fixing block 14 to move and clamp the side of the sample collection cup 5. The nut fixes the third connecting frame 47 from the bottom. After the sample is collected, after the nut is loosened, the third connecting frame 47 moves downward when the threaded rod 46 is rotated in the opposite direction, the ring frame 4 moves downward, and the fixing block 14 is pulled back into the first sliding groove 13 by the limiting block 44 under the limiting action of the limiting groove 45.

[0061] The working principle of this utility model is as follows: Sample collection cups 5 containing samples are sequentially placed into the upper disc 1. The upper fixing groove 12 and the lower fixing groove 22 limit the upper and lower ends of the sample collection cups 5. After all the sample collection cups 5 are placed in, rotating the threaded rod 46 drives the third connecting frame 47 to move upward. The third connecting frame 47 drives the annular frame 4 to move upward, thereby driving all the first connecting blocks 43 to move upward. The first connecting blocks 43 drive the first push block 41 to move upward in the second sliding groove, thereby driving the second push block 42 to slide in the first sliding groove, pushing the fixing block 14 to move. The sample collection cup 5 is clamped on the side, and the nut is fixed to the third connecting frame 47 from the bottom. The anti-slip pad increases the friction between the fixing block 14 and the sample collection cup 5, and the anti-slip pad can also protect the side of the sample collection cup 5, so that the sample collection cup 5 is stably fixed in the upper fixing groove 12. Then, the snap-fit ​​groove 33 at the bottom of the connecting column 3 is snapped into the sample mounting groove 6 of the biochemical analyzer. The connecting column 3 is rotated by the driving component of the biochemical analyzer, thereby realizing the sampling of the sample collection cup 5 one by one, which is conducive to the stable and accurate operation of the subsequent process of the biochemical analyzer.

[0062] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A sample collection cup fixing mechanism for a biochemical analyzer, comprising an upper disc (1), a lower disc (2), and a connecting column (3), characterized in that: The upper disk (1) and the lower disk (2) are both located on the outside of the connecting column (3) and are coaxial with the connecting column (3); The upper disc (1) is connected to the side of the connecting column (3) via the first connecting frame (11); The lower disc (2) is connected to the side of the connecting column (3) via the second connecting frame (21); The upper disc (1) is provided with multiple upper fixing grooves (12) running through it; The top of the lower disc (2) is provided with a plurality of lower fixing grooves (22); the lower fixing grooves (22) correspond one-to-one with the upper fixing grooves (12); The upper fixing groove (12) is symmetrically provided with a first sliding groove (13), and a fixing block (14) is slidably provided in the first sliding groove (13). The opposite side of the two fixing blocks (14) is arc-shaped. The side of the first sliding groove (13) is provided with a second sliding groove (15), and the second sliding groove (15) penetrates the bottom of the upper disk (1); The second sliding groove (15) is provided with a pushing component, which pushes the fixed block (14) to move in the axial direction of the upward fixed groove (12).

2. The sample collection cup fixing mechanism for a biochemical analyzer according to claim 1, characterized in that: The pushing component includes a first push block (41), which is wedge-shaped and is longitudinally slidably disposed in a second sliding groove (15); The side of the fixing block (14) is connected to a second push block (42). The side of the second push block (42) away from the fixing block (14) is set as an inclined surface, and the inclined surface of the second push block (42) is in contact with the inclined surface of the first push block (41). The first push block (41) has a first connecting block (43) at its bottom; The bottom of the first connecting block (43) is connected to a ring frame (4); The ring frame (4) is located below the upper disc (1).

3. The sample collection cup fixing mechanism for a biochemical analyzer according to claim 2, characterized in that: The first push block (41) has a limiting groove (45) on its side, and the second push block (42) has a limiting block (44) on its side. The limiting groove (45) and the limiting block (44) are T-shaped, and the limiting block (44) is slidably disposed in the limiting groove (45).

4. The sample collection cup fixing mechanism for a biochemical analyzer according to claim 3, characterized in that: The inner side of the ring frame (4) is provided with a third connecting frame (47), and the third connecting frame (47) is slidably connected to the connecting column (3); The first connecting frame (11) is rotatably provided with a threaded rod (46), and the number of the threaded rod (46) is at least one; The threaded rod (46) is threadedly connected to the third connecting bracket (47).

5. The sample collection cup fixing mechanism for a biochemical analyzer according to claim 1, characterized in that: The bottom of the connecting post (3) is provided with a snap-fit ​​groove (33).

6. The sample collection cup fixing mechanism for a biochemical analyzer according to claim 1, characterized in that: The top side of the connecting column (3) is provided with a rotating groove (31), which is semi-circular, and a handle (32) is provided inside the rotating groove (31).

7. The sample collection cup fixing mechanism for a biochemical analyzer according to claim 1, characterized in that: The lower fixing groove (22) is conical.

8. The sample collection cup fixing mechanism for a biochemical analyzer according to claim 1, characterized in that: The fixed block (14) has an anti-slip pad inside its arc-shaped surface.

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