Cholesterol detection device with quantitative sample adding function

Abstract

The utility model relates to the technical field of cholesterol detection, and provides a quantitative sample adding cholesterol detection device which comprises a workbench, the output end of a driving motor penetrates through the workbench and is fixedly connected with a placing disc through a coupler, and placing grooves are formed in the top end of the placing disc at equal angles; a liquid suction pipe is fixedly connected to one end of the bottom end of the mounting plate, a reagent paper placement table is fixedly connected to the top end of the portion, on one side of the controller, of the workbench, and a detection probe is fixedly connected to the bottom end of the fixing plate. The telescopic amount of the electric telescopic rod is controlled through the controller, then the sliding distance of the piston is made to be consistent, mixed liquid sucked into the pipette every time is basically consistent, automatic quantitative suction of various sample data can be achieved through the rotating placing disc, the precision of subsequent cholesterol detection experiments is guaranteed, and then the purpose of quantitative detection of various data is achieved. The practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cholesterol detection, in particular to a quantitative sample addition cholesterol detection device. Background Art

[0002] Cholesterol is a derivative of cyclopentanepolyhydrophenanthrene and plays an important role in basic cellular life activities. However, excessive levels of cholesterol can also have adverse effects on the human body. Therefore, it is often necessary to test cholesterol in the human body or in corresponding samples. The existing method is to mix the sample with the reagent and then drop it onto the reagent paper for the corresponding test.

[0003] After searching, the existing patent (Announcement No.: CN218496935U) discloses a biochemical analyzer for protein cholesterol determination kit detection, including an instrument body, a connection assembly is arranged on the rear surface of the instrument body, a cover plate is connected to the inner side of the upper end of the connection assembly, a controller is arranged on the upper surface of the cover plate, the lower end of the controller is electrically connected to the probe, a feeding mechanism is arranged on both sides of the inside of the instrument body, a sample tray and a reagent tray are arranged on the upper part of the feeding mechanism, and test tubes are arranged inside the sample tray and the reagent tray, a hydraulic cylinder is arranged on both sides of the middle of the instrument body, a micro-control motor is connected to the top of the upper end of the hydraulic cylinder, a rotating rod is connected to the surface of the micro-control motor, a sample suction needle is arranged at the other end of the rotating rod, and a comparison disk is arranged on the middle surface of the instrument body. The biochemical analyzer for protein cholesterol determination kit detection has a fully mechanized operation, can analyze multiple groups, and reduces the workload of operators.

[0004] However, in the above scheme, it is inconvenient to add samples quantitatively. In the actual detection process, the content of the mixed liquid added to the reagent paper will also affect the actual detection accuracy. However, the existing method often requires manual quantitative addition of samples, which makes the whole process more cumbersome and inconvenient to automatically perform quantitative addition and detection operations, resulting in inconvenience in its use.

[0005] In view of this, the utility model provides a cholesterol detection device for quantitative sample addition. Utility Model Content

[0006] The utility model provides a quantitative sample addition cholesterol detection device, which solves the problem of the function of medicine ratio in the related technology.

[0007] The technical solution of the utility model is as follows: a cholesterol detection device for quantitative sampling, comprising a workbench, a driving motor is fixedly connected to one side of the bottom end of the workbench, the output end of the driving motor passes through the workbench and is fixedly connected to a placement plate through a coupling, the top of the placement plate is provided with placement grooves at equal angles, a clamping assembly is arranged inside the placement plate at one end of the placement groove, a fixing groove is opened at one end of the top of the workbench, a servo motor is fixedly connected to the upper end of one side of the workbench, the output end of the servo motor extends to the inside of the fixing groove and is fixedly connected to a threaded rod through a coupling, the surface of the threaded rod is threadedly connected to a threaded block, and the top of the threaded block is fixedly connected to a sliding block extending to the outside of the workbench. A movable seat, the top of the sliding seat is fixedly connected to a first pneumatic telescopic rod, the output end of the first pneumatic telescopic rod is fixedly connected to a mounting plate, one end of the bottom end of the mounting plate is fixedly connected to a pipette, one end of the top of the mounting plate is fixedly connected to an electric telescopic rod, the output end of the electric telescopic rod extends to the interior of the pipette and is fixedly connected to a piston, a controller is fixedly connected to the middle position of one end of the top of the workbench, a reagent paper placement table is fixedly connected to the top of the workbench on one side of the controller, a second pneumatic telescopic rod is fixedly connected to the top of the workbench at one end of the reagent paper placement table, the output end of the second pneumatic telescopic rod is fixedly connected to a fixed plate, and the bottom end of the fixed plate is fixedly connected to a detection probe.

[0008] Preferably, the inner bottom wall of the pipette is fixedly connected with a guide block, and the guide block is funnel-shaped, so that the mixed liquid sample inside the pipette can be discharged more thoroughly and quickly.

[0009] Preferably, an auxiliary ring groove is provided in an annular shape on one side of the top of the workbench, and an auxiliary block that slides with the inside of the auxiliary ring groove is fixedly connected at an equal angle to the bottom of the placement plate, so that the rotation of the placement plate is smoother, which is convenient for quantitative sampling of samples inside different reagent tubes.

[0010] Preferably, the shape of the threaded block in a side view is convex, and a sliding structure is formed between the threaded block and the inside of the fixing groove, so that the threaded block can drive the sliding seat to slide more smoothly.

[0011] Preferably, the clamping assembly includes a clamping groove, which is arranged inside a placement plate at one end of the placement groove, a fixing spring is fixedly connected to the inner wall of the clamping groove, a rubber block is fixedly connected to one end of the fixing spring, a shifting block extending to the outside of the placement plate is fixedly connected to the top of the rubber block, and the elastic force of the fixing spring is utilized to make the rubber block slide to clamp and fix the surface of the reagent tube, thereby achieving firm clamping and fixation of reagent tubes of different specifications and sizes, thereby improving its applicability.

[0012] Preferably, the inner wall of the rubber block is provided with anti-skid patterns at equal angles, and the shape of the anti-skid patterns in a top view is an isosceles trapezoid, which increases the contact friction between the inner wall of the rubber block and the reagent tube and improves the stability of the placement of the reagent tube.

[0013] Preferably, the shape of one end of the rubber block in a top view is arc-shaped, and there are five rubber blocks distributed at equal angles, which is convenient for clamping and fixing the surface of the reagent tube.

[0014] Preferably, the inner wall of the clamping groove is provided with a limiting groove, and limiting blocks slidably matched with the inside of the limiting groove are fixedly connected to both sides of the rubber block, so that the sliding of the rubber block is more stable.

[0015] The working principle and beneficial effects of the utility model are:

[0016] 1. The utility model provides a placement plate, a controller, an electric telescopic rod, a driving motor, a pipette, a guide block and a piston. By starting the first pneumatic telescopic rod, the bottom end of the pipette is extended into the reagent tube, and then the electric telescopic rod works to suck the sample mixture inside the reagent tube into the pipette. At the same time, the controller can ensure that the piston rises the same distance each time, so that quantitative suction sampling of the sample mixture can be achieved each time, avoiding the final detection accuracy being affected by different sample additions each time. After that, the servo motor moves to the reagent paper placement table and drops the sample mixture, and uses the detection probe to perform cholesterol content detection. At the same time, the rotating placement plate can be used to facilitate automatic quantitative sample addition and detection of different reagent tubes, thereby improving the corresponding cholesterol content detection work efficiency and its practicability, thereby achieving the function of facilitating quantitative sample addition.

[0017] 2. In the utility model, a clamping assembly is provided, and the rubber block is driven to slide to a suitable position by moving the shifting block, and then the reagent tube is inserted into the placement groove. Thereafter, the elastic force of the fixing spring is used to make the rubber block slide to clamp and fix the surface of the reagent tube, and the isosceles trapezoidal anti-slip pattern is used to increase the contact friction between the inner wall of the rubber block and the reagent tube, thereby achieving firm clamping and fixing of reagent tubes of different specifications, avoiding the unstable placement of reagent tubes with smaller diameters, improving its applicability, and achieving the effect of facilitating the clamping of reagent tubes of multiple specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0021] Figure 3It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0022] Figure 4 It is a schematic diagram of a partially exploded and enlarged structure of a clamping assembly of the utility model;

[0023] Figure 5 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0024] In the figure: 1. mounting plate; 2. first pneumatic telescopic rod; 3. sliding seat; 4. servo motor; 5. workbench; 6. placement plate; 7. clamping assembly; 701. anti-slip groove; 702. shift block; 703. rubber block; 704. fixing spring; 705. limit block; 706. clamping groove; 707. limit groove; 8. placement groove; 9. controller; 10. second pneumatic telescopic rod; 11. reagent paper placement table; 12. fixing plate; 13. fixing groove; 14. threaded rod; 15. electric telescopic rod; 16. driving motor; 17. detection probe; 18. pipette; 19. threaded block; 20. auxiliary ring groove; 21. auxiliary block; 22. guide block; 23. piston. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] The preferred embodiment of the cholesterol detection device provided by the utility model is as follows: Figures 1 to 5As shown: a cholesterol detection device for quantitative addition, including a workbench 5, a driving motor 16 is fixedly connected to one side of the bottom end of the workbench 5, the output end of the driving motor 16 passes through the workbench 5 and is fixedly connected to a placement plate 6 through a coupling, a placement groove 8 is provided at the top of the placement plate 6 at equal angles, a clamping assembly 7 is arranged inside the placement plate 6 at one end of the placement groove 8, a fixing groove 13 is provided at one end of the top of the workbench 5, a servo motor 4 is fixedly connected to the upper end of one side of the workbench 5, the output end of the servo motor 4 extends to the inside of the fixing groove 13 and is fixedly connected to a threaded rod 14 through a coupling, a threaded block 19 is threadedly connected to the surface of the threaded rod 14, a sliding seat 3 extending to the outside of the workbench 5 is fixedly connected to the top of the threaded block 19, and the sliding seat 3 is fixedly connected to the top of a first pneumatic telescopic rod 2, the output end of the first pneumatic telescopic rod 2 is fixedly connected to a mounting plate 1, one end of the bottom end of the mounting plate 1 is fixedly connected to a pipette 18, one end of the top end of the mounting plate 1 is fixedly connected to an electric telescopic rod 15, the output end of the electric telescopic rod 15 extends to the interior of the pipette 18 and is fixedly connected to a piston 23, a controller 9 is fixedly connected to the middle position of one end of the top end of the workbench 5, a reagent paper placement table 11 is fixedly connected to the top of the workbench 5 on one side of the controller 9, a second pneumatic telescopic rod 10 is fixedly connected to the top of the workbench 5 at one end of the reagent paper placement table 11, the output end of the second pneumatic telescopic rod 10 is fixedly connected to a fixing plate 12, and the bottom end of the fixing plate 12 is fixedly connected to a detection probe 17.

[0028] In this embodiment, the inner bottom wall of the pipette 18 is fixedly connected with a guide block 22, and the shape of the guide block 22 is funnel-shaped. The use of the funnel-shaped guide block 22 facilitates the mixed liquid sample inside the pipette 18 to be discharged more thoroughly and quickly.

[0029] In this embodiment, an auxiliary annular groove 20 is provided in an annular manner on one side of the top of the workbench 5, and an auxiliary block 21 that slides with the inside of the auxiliary annular groove 20 is fixedly connected at an equal angle to the bottom end of the placement tray 6. The sliding of the auxiliary block 21 in the auxiliary annular groove 20 makes the rotation of the placement tray 6 smoother, which facilitates the quantitative sampling of samples in different reagent tubes.

[0030] In this embodiment, the shape of the threaded block 19 in the side view is convex, and a sliding structure is formed between the threaded block 19 and the inside of the fixed groove 13. The sliding of the convex threaded block 19 and the inside of the fixed groove 13 is utilized to prevent the threaded block 19 from rotating with the rotation of the threaded rod 14, so that the threaded block 19 can drive the sliding seat 3 to slide more smoothly.

[0031] Example 2

[0032] Based on Example 1, a preferred embodiment of the cholesterol detection device provided by the present invention is as follows: Figures 1 to 5As shown: the clamping assembly 7 includes a clamping groove 706, which is opened inside the placement plate 6 at one end of the placement groove 8, and the inner wall of the clamping groove 706 is fixedly connected with a fixing spring 704, and one end of the fixing spring 704 is fixedly connected with a rubber block 703, and the top of the rubber block 703 is fixedly connected with a shifting block 702 extending to the outside of the placement plate 6. The reagent tube is inserted into the placement groove 8, and then the elastic force of the fixing spring 704 is used to make the rubber block 703 slide to clamp and fix the surface of the reagent tube, thereby realizing the firm clamping and fixation of reagent tubes of different specifications and sizes, thereby improving its applicability.

[0033] In this embodiment, the inner wall of the rubber block 703 is provided with anti-slip grooves 701 at equal angles. The shape of the anti-slip grooves 701 in a top view is an isosceles trapezoid. The isosceles trapezoidal anti-slip grooves 701 are utilized to increase the contact friction between the inner wall of the rubber block 703 and the reagent tube, thereby improving the stability of the placement of the reagent tube.

[0034] In this embodiment, the shape of one end of the rubber block 703 in a top view is arc-shaped, and there are five rubber blocks 703 distributed at equal angles. The arc-shaped rubber blocks 703 are used to facilitate clamping and fixing the surface of the reagent tube.

[0035] In this embodiment, a limiting groove 707 is provided on the inner wall of the clamping groove 706, and limiting blocks 705 are fixedly connected on both sides of the rubber block 703 to slide with the inside of the limiting groove 707. The sliding of the limiting blocks 705 in the limiting groove 707 makes the sliding of the rubber block 703 smoother.

[0036] The working principle and use process of the utility model are as follows: first, the test reagent paper is placed on the top of the reagent paper placement table 11, and then the sample and reagent are placed in the reagent tube and mixed, and then the rubber block 703 is driven to slide and compress the fixed spring 704 to a suitable position by toggling the toggle block 702, and then the reagent tube is inserted into the placement slot 8, and then the toggle block 702 is released, and the elastic force of the fixed spring 704 is used to make the rubber block 703 slide to clamp and fix the surface of the reagent tube, and the isosceles trapezoidal anti-slip pattern 701 is used to increase the contact friction between the inner wall of the rubber block 703 and the reagent tube, so that the reagent tubes of different specifications and sizes can be firmly clamped and fixed, thereby improving its applicability;

[0037] Then, the driving motor 16 is started to drive the placement plate 6 to rotate, so that the reagent tube in a placement slot 8 rotates to the bottom of the pipette 18, and then the first pneumatic telescopic rod 2 is started to drive the mounting plate 1 to descend, so that the bottom end of the pipette 18 extends into the reagent tube, and then the electric telescopic rod 15 is operated through the controller 9 to drive the piston 23 to rise to a suitable position inside the pipette 18, so that the sample mixture inside the reagent tube can be sucked into the pipette 18. At the same time, the controller 9 can ensure that the piston 23 rises a consistent distance each time, so that quantitative suction sampling of the sample mixture can be achieved each time;

[0038] Then, the first pneumatic telescopic rod 2 is started to drive the pipette 18 to rise to the outside of the reagent tube, and the servo motor 4 is started to drive the threaded rod 14 to rotate. The threaded rod 14 and the threaded block 19 are matched with each other, so that the threaded block 19 slides and drives the sliding seat 3 to slide to the reagent paper placement table 11, and then the electric telescopic rod 15 is started to inject all the sample mixture inside the pipette 18 into the reagent paper at the top of the reagent paper placement table 11, and then the servo motor 4 is started to move the mounting plate 1 to the placement plate 6. At this time, the above operation is repeated to realize the quantitative sampling of the sample mixture of the reagent tube in another placement slot 8, and at this time, the second pneumatic telescopic rod 10 is started to drive the fixed plate 12 to descend, so as to facilitate the cholesterol content detection action through the detection probe 17.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quantitative cholesterol detection device, comprising a workbench (5), characterized in that: A driving motor (16) is fixedly connected to one side of the bottom end of the workbench (5); the output end of the driving motor (16) passes through the workbench (5) and is fixedly connected to a placement plate (6) through a coupling; a placement groove (8) is provided at an equal angle at the top end of the placement plate (6); a clamping assembly (7) is arranged inside the placement plate (6) at one end of the placement groove (8); a fixing groove (13) is provided at one end of the top end of the workbench (5); a servo motor (4) is fixedly connected to the upper end of one side of the workbench (5); the output end of the servo motor (4) extends to the inside of the fixing groove (13) and is fixedly connected to a threaded rod (14) through a coupling; a threaded block (19) is threadedly connected to the surface of the threaded rod (14); a sliding seat (3) extending to the outside of the workbench (5) is fixedly connected to the top end of the threaded block (19); a first sliding seat (3) is fixedly connected to the top end of the sliding seat (3); A pneumatic telescopic rod (2), wherein the output end of the first pneumatic telescopic rod (2) is fixedly connected to a mounting plate (1), one end of the bottom end of the mounting plate (1) is fixedly connected to a liquid pipette (18), one end of the top end of the mounting plate (1) is fixedly connected to an electric telescopic rod (15), the output end of the electric telescopic rod (15) extends to the interior of the liquid pipette (18) and is fixedly connected to a piston (23), a controller (9) is fixedly connected to the middle position of the top end of the workbench (5), a reagent paper placement table (11) is fixedly connected to the top end of the workbench (5) on one side of the controller (9), a second pneumatic telescopic rod (10) is fixedly connected to the top end of the workbench (5) at one end of the reagent paper placement table (11), the output end of the second pneumatic telescopic rod (10) is fixedly connected to a fixing plate (12), and the bottom end of the fixing plate (12) is fixedly connected to a detection probe (17).

2. A cholesterol detection device for quantitative addition of samples according to claim 1, characterized in that: A guide block (22) is fixedly connected to the inner bottom wall of the liquid suction tube (18), and the guide block (22) is in the shape of a funnel.

3. The cholesterol detection device for quantitative addition of samples according to claim 1, characterized in that: An auxiliary annular groove (20) is provided in an annular shape on one side of the top of the workbench (5), and an auxiliary block (21) which is slidably matched with the inside of the auxiliary annular groove (20) is fixedly connected to the bottom end of the placement plate (6) at an equal angle.

4. The cholesterol detection device for quantitative addition of samples according to claim 1, characterized in that: The shape of the threaded block (19) in a side view is convex, and a sliding structure is formed between the threaded block (19) and the interior of the fixing groove (13).

5. The cholesterol detection device for quantitative addition of samples according to claim 1, characterized in that: The clamping assembly (7) comprises a clamping groove (706), wherein the clamping groove (706) is arranged inside the placement plate (6) at one end of the placement groove (8), a fixing spring (704) is fixedly connected to the inner wall of the clamping groove (706), one end of the fixing spring (704) is fixedly connected to a rubber block (703), and the top end of the rubber block (703) is fixedly connected to a shifting block (702) extending to the outside of the placement plate (6).

6. The cholesterol detection device for quantitative addition of samples according to claim 5, characterized in that: The inner wall of the rubber block (703) is provided with anti-skid patterns (701) at equal angles, and the shape of the anti-skid patterns (701) in a top view is an isosceles trapezoid.

7. The cholesterol detection device for quantitative addition of samples according to claim 5, characterized in that: The shape of one end of the rubber block (703) in a top view is arc-shaped, and there are five rubber blocks (703) distributed at equal angles.

8. The cholesterol detection device for quantitative addition of samples according to claim 5, characterized in that: The inner wall of the clamping groove (706) is provided with a limiting groove (707), and limiting blocks (705) which are slidably matched with the inside of the limiting groove (707) are fixedly connected to both sides of the rubber block (703).

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