Sampling device of hematology analyzer

Abstract

The utility model relates to the technical field of cell analysis, and provides a sampling device of a hematology analyzer, which comprises an analyzer body, a probe is arranged at the top end of the analyzer body, a bottom plate is arranged at the bottom end of the analyzer body, and positioning blocks are fixedly connected to two sides of the upper surface of the bottom plate. The sides, close to each other, of the two positioning blocks are rotationally connected with the same two-way lead screw, one sides of the positioning blocks are fixedly connected with servo motors, the servo motors penetrate through the positioning blocks and are fixedly connected with one ends of the two-way lead screws, and the arc surface of each two-way lead screw is in threaded connection with two moving blocks. And the inner walls of the two moving blocks are rotationally connected with driving rods. The sampling device of the hematology analyzer solves the technical problem that the overall practicability and the application range of the equipment are influenced as part of catheters cannot be stably fixed and detected due to the lack of the function of adjusting the length of the catheters in the conventional equipment.

Description

Technical Field

[0001] This utility model relates to the field of cell analysis technology, and in particular to a sample introduction device for a blood cell analyzer. Background Technology

[0002] A blood cell analyzer is a sophisticated medical instrument designed for the detailed exploration and analysis of blood samples in medical laboratories. This instrument can count and classify various cellular components in the blood, including red blood cells, white blood cells, and platelets. Their quantity, size, and morphology are key characteristics that the blood cell analyzer focuses on.

[0003] Currently, existing equipment lacks the function of adjusting the length of the catheter, which makes it impossible to securely fix some catheters and conduct tests, thus affecting the overall applicability and scope of application of the equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a sample introduction device for a blood cell analyzer, which solves the technical problem that the existing equipment lacks the function of adjusting the catheter length, resulting in some catheters not being able to be securely fixed and detected, thus affecting the overall practicality and applicability of the equipment.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a sample introduction device for a blood cell analyzer, comprising an analyzer body, a probe provided at the top of the analyzer body, a base plate provided at the bottom of the analyzer body, positioning blocks fixedly connected to both sides of the upper surface of the base plate, a bidirectional lead screw rotatably connected to the side of the two positioning blocks that are close to each other, and a servo motor fixedly connected to one side of the positioning block.

[0008] Preferably, the servo motor is fixedly connected to one end of the bidirectional lead screw through the positioning block, and the bidirectional lead screw has two moving blocks connected to its arc-shaped threaded surface.

[0009] The technical effect of adopting the above-mentioned further solution is that starting the servo motor can drive the bidirectional lead screw to rotate.

[0010] Preferably, the inner walls of the two movable blocks are rotatably connected to drive rods, the other ends of the two drive rods are rotatably connected to rotating frames, and the top ends of the two rotating frames are fixedly connected to the same movable plate.

[0011] The technical effect of adopting the above-mentioned further solution is that the rotation of the bidirectional lead screw can drive the two moving blocks to move away from each other, and the moving plate can be moved upward by means of the two drive rods.

[0012] Preferably, limiting posts are fixedly connected to both sides of the upper surface of the base plate, and the limiting posts slide through the inner wall of the movable plate.

[0013] The technical effect of adopting the above-mentioned further solution is to prevent the moving plate from tilting.

[0014] Preferably, a rotating disk is rotatably connected to the upper surface of the movable plate. The upper surface of the rotating disk has several evenly spaced slots, and four springs are fixedly connected to the inner wall of each slot. The four springs are grouped in pairs, and the other ends of two springs are fixedly connected to the same clamping plate.

[0015] The technical effect of adopting the above-mentioned further solution is that, under the action of spring compression, the test tube is clamped and fixed with the help of the clamp plate.

[0016] Preferably, a toothed ring is fixedly connected to the annular surface of the rotating disk, and a gear meshes with the tooth surface of the toothed ring. A drive motor is fixedly connected to the lower surface of the moving plate at the gear, and the output end of the drive motor passes through the moving plate and is fixedly connected to the gear.

[0017] The technical effect of adopting the above-mentioned further solution is that when the drive motor is started, the drive motor drives the gear to rotate, and the gear drives the rotating disk on the gear ring to rotate.

[0018] Preferably, a sponge pad is fixedly connected to the arc surface of the clamping plate.

[0019] The technical advantage of adopting the above-mentioned further solution is that the sponge pad can better protect the test tube.

[0020] Preferably, a telescopic rod is fitted inside the spring, and the two ends of the telescopic rod are fixedly connected to the side wall of the clamping plate and the placement groove, respectively.

[0021] The technical effect of adopting the above-mentioned further solution is to prevent the spring from bending.

[0022] (III) Beneficial Effects

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows: A test tube containing blood is placed in the placement groove. During this process, under the compression force of the spring, the test tube is clamped and fixed by a clamp plate. Then, the length of the test tube is adjusted, and the servo motor is started. The servo motor drives the bidirectional lead screw to rotate, which in turn drives two moving blocks to move away from each other. After the moving plate is moved upward to a suitable position by two drive rods, the servo motor is turned off, and then the drive motor is started. The drive motor drives the gear to rotate, and the gear drives the rotating disk on the gear ring to rotate. This avoids the test tube from shaking or even breaking, improving the safety of cell analysis. Furthermore, it enables the analyzer body and probes to detect and analyze the blood in multiple test tubes on the rotating disk. Attached Figure Description

[0024] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following describes the preferred examples of this utility model in detail with reference to the accompanying drawings.

[0025] Figure 1 A three-dimensional structural schematic diagram of the sample introduction device of a blood cell analyzer provided for the implementation of this utility model;

[0026] Figure 2 This is a front view structural diagram of an embodiment of the present utility model;

[0027] Figure 3 This is a schematic diagram of a partially disassembled structure in an embodiment of the present utility model;

[0028] Figure 4 This is a partial structural diagram of an embodiment of the present utility model.

[0029] Legend: 1. Analyzer body; 2. Probe; 3. Base plate; 4. Moving plate; 5. Rotating disk; 6. Limiting post; 7. Placement slot; 8. Gear ring; 9. Gear; 10. Drive motor; 11. Servo motor; 12. Positioning block; 13. Two-way lead screw; 14. Moving block; 15. Drive rod; 16. Clamping plate; 17. Sponge pad; 18. Telescopic rod; 19. Spring; 20. Rotating frame. Detailed Implementation

[0030] 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.

[0031] Reference Figures 1 to 4 As shown, this utility model provides a technical solution: a sample introduction device for a blood cell analyzer, including an analyzer body 1, a probe 2 disposed at the top of the analyzer body 1, a base plate 3 disposed at the bottom of the analyzer body 1, positioning blocks 12 fixedly connected to both sides of the upper surface of the base plate 3, a bidirectional lead screw 13 rotatably connected to the side of the two positioning blocks 12 that are close to each other, a servo motor 11 fixedly connected to one side of the positioning block 12, the servo motor 11 passing through the positioning block 12 and fixedly connected to one end of the bidirectional lead screw 13, and two displacement screws threadedly connected to the arc surface of the bidirectional lead screw 13. The moving block 14, when the servo motor 11 is started, can drive the bidirectional lead screw 13 to rotate. The inner walls of the two moving blocks 14 are rotatably connected to the drive rods 15. The other ends of the two drive rods 15 are rotatably connected to the rotating frame 20. The top of the two rotating frames 20 is fixedly connected to the same moving plate 4. The rotation of the bidirectional lead screw 13 can drive the two moving blocks 14 to move away from each other. The moving plate 4 is moved upward by means of the two drive rods 15. Limiting posts 6 are fixedly connected to both sides of the upper surface of the base plate 3. The limiting posts 6 slide through the inner wall of the moving plate 4 to prevent the moving plate 4 from tilting.

[0032] Reference Figures 1 to 4 As shown in this embodiment: a rotating disk 5 is rotatably connected to the upper surface of the movable plate 4. Several placement slots 7 are evenly distributed on the upper surface of the rotating disk 5. Four springs 19 are fixedly connected to the inner wall of each placement slot 7. The four springs 19 are grouped in pairs, and the other ends of two springs 19 are fixedly connected to the same clamping plate 16. Under the compression force of the springs 19, the test tubes are clamped and fixed by the clamping plate 16. A toothed ring 8 is fixedly connected to the annular surface of the rotating disk 5. Gears 9 mesh with the teeth of the toothed ring 8. The lower surface of the movable plate 4... A drive motor 10 is fixedly connected to the gear 9, and the output end of the drive motor 10 passes through the moving plate 4 and is fixedly connected to the gear 9. When the drive motor 10 is started, the drive motor 10 drives the gear 9 to rotate, and the gear 9 drives the rotating disk 5 on the gear ring 8 to rotate. A sponge pad 17 is fixedly connected to the arc surface of the clamping plate 16. The sponge pad 17 can better protect the test tube. A telescopic rod 18 is sleeved inside the spring 19. The two ends of the telescopic rod 18 are fixedly connected to the side wall of the clamping plate 16 and the placement groove 7 respectively to prevent the spring 19 from bending.

[0033] The working principle of the sample introduction device of the blood cell analyzer provided by this utility model is as follows: In use, the test tube containing blood is first placed in the placement groove 7. During this process, under the compression force of the spring 19, the test tube is clamped and fixed by the clamp plate 16. Then, the length of the test tube is adjusted, and the servo motor 11 is started. The servo motor 11 drives the bidirectional lead screw 13 to rotate. The bidirectional lead screw 13 drives the two moving blocks 14 to move away from each other. After the moving plate 4 is moved upward to the appropriate position by the two drive rods 15, the servo motor 11 is turned off. Then, the drive motor 10 is started. The drive motor 10 drives the gear 9 to rotate. The gear 9 drives the rotating disk 5 on the gear ring 8 to rotate, avoiding the problem of test tube shaking or even breakage, improving the safety of cell analysis. In this way, the analyzer body 1 and the probe 2 can detect and analyze the blood in multiple test tubes on the rotating disk 5.

[0034] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A sample introduction device for a blood cell analyzer comprising an analyzer body (1), characterized in that: The top of the analyzer body (1) is provided with a probe (2), and the bottom of the analyzer body (1) is provided with a base plate (3). Positioning blocks (12) are fixedly connected to both sides of the upper surface of the base plate (3). The two positioning blocks (12) are rotatably connected to the same bidirectional lead screw (13) on the side that is close to each other. A servo motor (11) is fixedly connected to one side of the positioning block (12).

2. The sample introduction device for a blood cell analyzer according to claim 1, wherein: The servo motor (11) passes through the positioning block (12) and is fixedly connected to one end of the bidirectional lead screw (13). The circular arc surface of the bidirectional lead screw (13) is threaded with two moving blocks (14).

3. A sample inlet device for a blood cell analyzer as defined in claim 2, wherein: The inner walls of the two movable blocks (14) are rotatably connected to drive rods (15), and the other ends of the two drive rods (15) are rotatably connected to rotating frames (20). The top ends of the two rotating frames (20) are fixedly connected to the same movable plate (4).

4. The sample introduction device for a blood cell analyzer as claimed in claim 1, wherein: Limiting posts (6) are fixedly connected to both sides of the upper surface of the base plate (3), and the limiting posts (6) slide through the inner wall of the moving plate (4).

5. The sample introduction device for a blood cell analyzer as defined in claim 4, wherein: The upper surface of the movable plate (4) is rotatably connected to a rotating disk (5). The upper surface of the rotating disk (5) is evenly provided with several placement slots (7). The inner wall of the placement slot (7) is fixedly connected to four springs (19). The four springs (19) are in pairs, and the other end of the two springs (19) is fixedly connected to the same clamp (16).

6. A sample inlet device for a blood cell analyzer as defined in claim 5, wherein: A toothed ring (8) is fixedly connected to the annular surface of the rotating disk (5), and a gear (9) meshes with the tooth surface of the toothed ring (8). A drive motor (10) is fixedly connected to the lower surface of the moving plate (4) at the gear (9), and the output end of the drive motor (10) passes through the moving plate (4) and is fixedly connected to the gear (9).

7. A sample inlet device for a blood cell analyzer as defined in claim 6, wherein: The arc surface of the clamp (16) is fixedly connected to a sponge pad (17).

8. The sample introduction device for a blood cell analyzer as defined in claim 6, wherein: The spring (19) is fitted with a telescopic rod (18), and the two ends of the telescopic rod (18) are fixedly connected to the side wall of the clamping plate (16) and the placement groove (7), respectively.

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