Thin-layer sample application auxiliary device for drug inspection

Abstract

The utility model discloses a thin layer sample application auxiliary device for drug inspection, which comprises a vertical plate, a motor I is fixedly connected outside the vertical plate, a threaded rod is fixedly connected with the output end of the motor I, a connecting block is in threaded connection with the outer side wall of the threaded rod, and the other end of the connecting block is fixedly connected with a shell. In the actual use process, the first motor is fixed to the sampling device to drive the threaded rod to rotate, the connecting block stably slides in the inner groove through threaded transmission, the shell and the sampling tube are driven to transversely move, the first electric push rod pushes the sliding block to slide up and down along the sliding groove, and then the mounting block and the sampling tube are driven to vertically ascend and descend to be accurately inserted into a sample bottle. The second electric push rod drives the inner rod to be in linkage with the piston, and sample extraction and extrusion are completed through push-pull movement. A second motor is arranged in the air duct on the mounting plate and drives the rotating shaft and the fan blades to rotate at a high speed, directional airflow is generated to quickly air the sample, and the design solves the problems that a traditional sample detection device is low in automation degree and tedious in operation.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for drug testing, specifically a thin-layer spotting auxiliary device for drug testing. Background Technology

[0002] A thin-layer chromatography (TLC) spotting auxiliary device for pharmaceutical testing is a precision tool specifically designed for the spotting process in TLC. Its core function is to improve the standardization of spotting and the reliability of test results. The main body of the device includes a coordinate positioning base plate with a grid scale marked on its surface, which can accurately delineate the spotting area on the TLC plate. Some devices integrate an automatic injection module, which can complete multi-point spotting according to a preset program, reducing human error. In use, the TLC plate is fixed to the base plate, the positioning system marks the spots, the support is adjusted so that the injector tip lightly touches the plate surface, and the injection is pushed at a uniform speed to complete the spotting. This device significantly reduces the offset and volume error of manual spotting and is suitable for scenarios such as pharmaceutical quality testing and component analysis. It is a key auxiliary device for improving the efficiency and accuracy of TLC testing.

[0003] In existing technologies, manual sampling and spotting operations not only consume a lot of time and effort, but also make it difficult to ensure that the position and volume of each spotting are consistent, resulting in poor repeatability of test results. The natural drying speed of manually applied samples is slow, which prolongs the test cycle. During the operation, personnel frequently come into contact with the samples, which can easily introduce external impurities and affect the accuracy of test results. Traditional devices lack automated control and precise positioning functions, which can no longer meet the needs of modern pharmaceutical testing for high efficiency and accuracy. In order to solve this technical problem, this utility model proposes a thin-layer spotting auxiliary device for pharmaceutical testing. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In existing technologies, manual sampling and spotting operations not only consume a lot of time and effort, but also make it difficult to ensure that the position and volume of each spotting are consistent, resulting in poor repeatability of test results. The natural drying speed of manually applied samples is slow, which prolongs the test cycle. During the operation, personnel frequently come into contact with the samples, which can easily introduce external impurities and affect the accuracy of test results. Traditional devices lack automated control and precise positioning functions, which can no longer meet the needs of modern pharmaceutical testing for high efficiency and accuracy. In order to solve this technical problem, this utility model proposes a thin-layer spotting auxiliary device for pharmaceutical testing.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a thin-layer spotting auxiliary device for pharmaceutical testing, comprising a vertical plate, a motor fixedly connected to the outside of the vertical plate, a threaded rod fixedly connected to the output end of the motor, a connecting block threadedly connected to the outer wall of the threaded rod, a housing fixedly connected to the other end of the connecting block, an electric push rod fixedly connected to the top of the housing, a slider fixedly connected to the output end of the electric push rod, an installation block fixedly connected to the outer wall of the slider, and a sampling tube fixedly installed inside the installation block.

[0008] Preferably, an electric push rod two is fixedly connected to the outer wall of the mounting block, an inner rod is fixedly connected to the output end of the electric push rod two, and a piston is fixedly connected to the other end of the inner rod, with the piston slidably connected inside the sampling tube.

[0009] Preferably, the vertical plate has an inner groove, and the connecting block is slidably connected in the inner groove; the outer shell has a sliding groove, and the slider is slidably connected in the sliding groove.

[0010] Preferably, an installation plate is fixedly connected to the lower outer wall of the housing, and a fan duct is fixedly connected to the other end of the installation plate. A second motor is fixedly connected inside the fan duct, and a rotating shaft is fixedly connected to the output end of the second motor. A fan blade is fixedly connected to the other end of the rotating shaft.

[0011] Preferably, a controller is fixedly connected to one side of the outer wall of the vertical plate, and the signal input terminals of motor one, electric push rod one, electric push rod two, and motor two are all connected to the signal output terminal of the controller.

[0012] Preferably, a workbench is fixedly connected to the bottom of the motor, a storage frame is provided on the top of one side of the workbench, and a pair of limiting plates are fixedly connected to the top of the other side of the vertical plate, with a thin template slidably connected inside the limiting plates.

[0013] (III) Beneficial Effects

[0014] This invention provides an auxiliary device for thin-layer sampling in pharmaceutical testing. It has the following beneficial effects:

[0015] (1) The vertical plate serves as the supporting base. Motor 1 is fixed on it to drive the threaded rod to rotate. Through the threaded transmission, the connecting block slides smoothly in the inner groove, driving the outer shell and sampling tube to move laterally and realize sample positioning. Electric push rod 1 pushes the slider to slide up and down along the slide groove, thereby driving the mounting block and sampling tube to rise and fall vertically and accurately insert into the sample bottle. Electric push rod 2 drives the inner rod to link the piston, and completes the sample extraction and extrusion through the push-pull motion. The air duct on the mounting plate has a built-in motor 2, which drives the rotating shaft and fan blades to rotate at high speed, generating directional airflow to quickly dry the sample. This design solves the problems of low automation and cumbersome operation of traditional sample detection devices. Previous devices mostly relied on manual sampling, smearing and drying, which was inefficient and prone to errors. This structure realizes full automation of sampling, transfer, smearing and drying through the collaboration of multiple components, significantly reducing the intensity of manual operation and effectively improving the efficiency and accuracy of sample detection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall side structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the ventilation duct of this utility model.

[0020] In the diagram: 1. Vertical plate; 2. Motor 1; 3. Threaded rod; 4. Connecting block; 5. Outer shell; 6. Electric push rod 1; 7. Inner groove; 8. Slider; 9. Slide groove; 10. Mounting block; 11. Electric push rod 2; 12. Sampling tube; 13. Inner rod; 14. Piston; 15. Mounting plate; 16. Air duct; 17. Motor 2; 18. Rotating shaft; 19. Fan blade; 20. Controller; 21. Storage frame; 22. Limiting plate; 23. Thin template; 24. Workbench. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Please see Figure 1-4 This utility model provides a technical solution:

[0023] Example 1: A thin-layer spotting auxiliary device for pharmaceutical testing includes a vertical plate 1. A motor 2 is fixedly connected to the outside of the vertical plate 1. A threaded rod 3 is fixedly connected to the output end of the motor 2. A connecting block 4 is threadedly connected to the outer wall of the threaded rod 3. A housing 5 is fixedly connected to the other end of the connecting block 4. An electric push rod 6 is fixedly connected to the top of the housing 5. A slider 8 is fixedly connected to the output end of the electric push rod 6. A mounting block 10 is fixedly connected to the outer wall of the slider 8, and a sampling tube 12 is fixedly installed inside the mounting block 10. An electric push rod 11 is fixedly connected to the outer wall of the mounting block 10. An inner rod 13 is fixedly connected to the output end of the electric push rod 11. A piston 14 is fixedly connected to the other end of the inner rod 13, and the piston 14 is slidably connected inside the sampling tube 12. An inner groove 7 is opened inside the vertical plate 1, and the connecting block 4 is slidably connected to the inner groove 7. Inside the inner groove 7, a sliding groove 9 is provided inside the outer shell 5, and the slider 8 is slidably connected in the sliding groove 9. A mounting plate 15 is fixedly connected to the lower outer wall of the outer shell 5. A fan duct 16 is fixedly connected to the other end of the mounting plate 15. A second motor 17 is fixedly connected inside the fan duct 16, and a rotating shaft 18 is fixedly connected to the output end of the second motor 17. A fan blade 19 is fixedly connected to the other end of the rotating shaft 18. A controller 20 is fixedly connected to the outer wall of one side of the vertical plate 1. The signal input ends of the first motor 2, the first electric push rod 6, the second electric push rod 11, and the second motor 17 are all connected to the signal output end of the controller 20. A workbench 24 is fixedly connected to the bottom of the first motor 2. A storage frame 21 is provided on the top of one side of the workbench 24. A pair of limiting plates 22 are fixedly connected to the top of the other side of the vertical plate 1, and a thin template 23 is slidably connected inside the limiting plate 22.

[0024] When performing sample testing, first carefully place the sample to be tested into the storage frame 21, then smoothly push the thin sample plate 23 between the two limiting plates 22 to complete the preliminary preparation. Next, turn on the power to the controller 20. Through precise control of the controller 20, start the motor 2. The motor 2 then drives the threaded rod 3 to rotate at high speed. During the rotation of the threaded rod 3, the connecting block 4, which is threaded to it, will move smoothly left and right in the inner groove 7 due to the thread transmission. The movement of the connecting block 4 will drive the outer shell 5 connected to it to move synchronously, thereby driving the sampling tube 12 installed on the outer shell 5 to move together. When the sampling tube 12 moves precisely to the corresponding position of the sample bottle, operate the controller 20 again. 0. Start the electric push rod 6 on the outer casing 5. When the electric push rod 6 is working, its output end drives the slider 8 to move smoothly up and down in the groove 9. The displacement of the slider 8 synchronously drives the mounting block 10, so that the sampling tube 12 on the mounting block 10 can move up and down accurately and be smoothly inserted into the sample bottle. At this time, the controller 20 plays a role and controls the electric push rod 11 to start. The output end of the electric push rod 11 drives the inner rod 13 to move upward. The inner rod 13 works in coordination with the piston 14. Using the suction force generated by the up and down movement of the piston 14, the sample in the sample bottle is quickly and accurately drawn into the sampling tube 12. After sampling is completed, the motor 2 starts again and drives the sampling tube 12 to move above the thin sample plate 23. At the same time, the electric push rod 6 works again and drives the sampling tube 12 to move downward until the outlet of the sample tube 12 contacts the thin sample plate 23. At this moment, the electric push rod 11 reverses, driving the inner rod 13 downwards, and evenly squeezing the sample in the sampling tube 12 onto the thin sample plate 23. The motor 17 in the air duct 16 is started, and the motor 17 drives the rotating shaft 18 to rotate at high speed. The fan blades 19 on the rotating shaft 18 rotate accordingly, generating a strong airflow to quickly dry the sample on the thin sample plate 23. This series of continuous and automated operation processes greatly improves the efficiency of sample testing and effectively reduces manual operation time and errors.

[0025] Working principle: First, the sample to be tested is placed in the storage frame 21. Then, the thin sample plate 23 is pushed between the limiting plates 22 on both sides. The controller 20 is connected to the power supply. By operating the controller 20, the motor 2 is started, which drives the threaded rod 3 to rotate. When the threaded rod 3 rotates, it drives the connecting block 4 to move left and right in the inner groove 7. When the connecting block 4 moves, it drives the outer shell 5 to move left and right, and also drives the sampling tube 12 to move. When the sampling tube 12 moves to the sample position, the controller 20 starts the electric push rod 6 on the outer shell 5, which drives the slider 8 to move up and down in the slide groove 9. When the slider 8 moves up and down, it drives the mounting block. The sampling tube 12 on the 10 moves up and down and is inserted into the sample bottle. At this time, the controller 20 controls the electric push rod 11 to start, driving the inner rod 13 to move upward, cooperating with the piston 14 to move up and down, and drawing the sample into the sampling tube 12. At this time, the motor 2 starts, causing the sampling tube 12 to move to the position of the thin sample plate 23. Cooperating with the electric push rod 6, the sampling tube 12 moves down onto the thin sample plate 23. At the same time, the electric push rod 11 drives the inner rod 13 to squeeze the sample out onto the thin sample plate 23. Cooperating with the motor 17 in the air duct 16 to start, driving the fan blades 19 on the rotating shaft 18 to rotate and air dry the sample, thereby improving the detection efficiency.

[0026] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail (motor model: 39BYG001; electric actuator model: XTL100-500-24).

[0027] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A thin-layer spotting auxiliary device for pharmaceutical testing, characterized in that: The device includes a vertical plate (1), a motor (2) fixedly connected to the outside of the vertical plate (1), a threaded rod (3) fixedly connected to the output end of the motor (2), a connecting block (4) threadedly connected to the outer wall of the threaded rod (3), a housing (5) fixedly connected to the other end of the connecting block (4), an electric push rod (6) fixedly connected to the top of the housing (5), a slider (8) fixedly connected to the output end of the electric push rod (6), an installation block (10) fixedly connected to the outer wall of the slider (8), and a sampling tube (12) fixedly installed inside the installation block (10).

2. The thin-layer spotting auxiliary device for pharmaceutical testing according to claim 1, characterized in that: An electric push rod (11) is fixedly connected to the outer wall of the mounting block (10). An inner rod (13) is fixedly connected to the output end of the electric push rod (11). A piston (14) is fixedly connected to the other end of the inner rod (13), and the piston (14) is slidably connected inside the sampling tube (12).

3. The thin-layer spotting auxiliary device for pharmaceutical testing according to claim 2, characterized in that: The vertical plate (1) has an inner groove (7) inside, and the connecting block (4) is slidably connected in the inner groove (7). The outer shell (5) has a sliding groove (9) inside, and the slider (8) is slidably connected in the sliding groove (9).

4. The thin-layer spotting auxiliary device for pharmaceutical testing according to claim 3, characterized in that: An installation plate (15) is fixedly connected to the lower outer wall of the outer shell (5). A wind duct (16) is fixedly connected to the other end of the installation plate (15). A second motor (17) is fixedly connected inside the wind duct (16), and a rotating shaft (18) is fixedly connected to the output end of the second motor (17). A fan blade (19) is fixedly connected to the other end of the rotating shaft (18).

5. The thin-layer spotting auxiliary device for pharmaceutical testing according to claim 4, characterized in that: A controller (20) is fixedly connected to the outer wall of one side of the vertical plate (1). The signal input terminals of the first motor (2), the first electric push rod (6), the second electric push rod (11), and the second motor (17) are all connected to the signal output terminal of the controller (20).

6. The thin-layer spotting auxiliary device for pharmaceutical testing according to claim 5, characterized in that: The bottom of the motor (2) is fixedly connected to a workbench (24), and a storage frame (21) is provided on the top of one side of the workbench (24). A pair of limiting plates (22) are fixedly connected to the top of the other side of the vertical plate (1), and a thin template (23) is slidably connected inside the limiting plate (22).

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