Medicine feeding device of high performance liquid chromatograph

Abstract

The utility model relates to the technical field of high performance liquid chromatograph, and discloses a high performance liquid chromatograph medicine feeding device which comprises a rack, a box body is arranged on the inner wall of the bottom end of the rack in a sliding mode, a plurality of test tubes are arranged in the box body in an inserted mode, a plurality of medicine tanks are fixedly connected to the inner wall of the top end of the rack, and the test tubes are arranged in the medicine tanks. And liquid conveying pumps are arranged at the bottoms of the multiple medicine tanks correspondingly, the bottoms of the multiple liquid conveying pumps are fixedly connected with material conveying pipes correspondingly, and the ends, away from the liquid conveying pumps, of the multiple material conveying pipes are fixedly connected with connecting cylinders correspondingly. The piston rod of the air cylinder can move to drive the connecting plate to move, the different connecting barrels and the medicine injection pipes can be adjusted to be arranged above different test tubes in an aligned mode, and after the infusion pump and the valve body are opened, medicine in different medicine tanks can be injected into the test tubes through the infusion pump, the conveying pipe, the connecting barrels and the medicine injection pipes. And medicine feeding treatment can be carried out, automatic adjustment according to requirements is facilitated, and the medicine feeding flexibility is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of high performance liquid chromatography (HPLC) technology, and in particular to a drug feeding device for HPLC. Background Technology

[0002] High performance liquid chromatography (HPLC) is an instrument widely used in the field of chemical analysis. It separates and analyzes various components in a mixture based on the differences in the partition coefficients of different substances between the stationary and mobile phases.

[0003] In existing technologies, the use of high-performance liquid chromatography (HPLC) requires injecting reagents into test tubes containing the stationary phase. However, different target substances require different reagent specifications and dosages, and the injection process cannot be flexibly adjusted according to usage needs. Therefore, this application designs a HPLC reagent injection device. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art that in the use of high performance liquid chromatography (HPLC), reagents need to be injected into test tubes containing stationary phases, but different target substances require different reagent specifications and dosages, and the process cannot be flexibly adjusted according to usage needs. Therefore, this invention proposes an HPLC reagent injection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-performance liquid chromatograph (HPLC) drug delivery device includes a frame. A box is slidably mounted on the inner wall of the bottom end of the frame. Multiple test tubes are inserted into the inside of the box. Multiple drug containers are fixedly connected to the inner wall of the top end of the frame. Infusion pumps are respectively mounted at the bottom of the multiple drug containers. Feeding pipes are respectively fixedly connected to the bottom of the multiple infusion pumps. Connecting cylinders are respectively fixedly connected to the ends of the multiple feeding pipes away from the infusion pumps. Injection pipes are respectively fixedly connected to the bottom of the multiple connecting cylinders. Valve bodies are respectively mounted on the walls of the multiple injection pipes. A cylinder is fixedly connected to the inner wall of the frame. A connecting plate is fixedly connected to the piston rod end of the cylinder. Multiple connecting cylinders are simultaneously fixedly connected to the inner wall of the connecting plate. A motor is fixedly connected to the inner wall of the bottom end of the frame.

[0007] Preferably, a rectangular groove is formed on the inner wall of the bottom end of the frame, and a screw is rotatably provided on the inner wall of the rectangular groove of the frame. A slider is threadedly connected to the wall of the screw, the top end of the slider is fixedly connected to the bottom of the box, and the output shaft of the motor is fixedly connected to the end of the screw.

[0008] Preferably, a controller is fixedly connected to the side wall of the connecting plate, and an electromagnet is fixedly connected to the inner top wall of the connecting plate, and the electromagnet is electrically connected to the controller.

[0009] Preferably, a strong magnetic block is fixedly connected to the side wall of the connecting cylinder, and a sliding groove is provided on the inner wall of the connecting plate. The strong magnetic block is slidably disposed on the inner wall of the sliding groove, and the strong magnetic block and the electromagnet are attracted to each other.

[0010] Preferably, a stabilizing block is fixedly connected to the side wall of the connecting plate, and a rectangular sliding groove is provided on the inner wall of the frame, with the stabilizing block slidably disposed on the inner wall of the rectangular sliding groove.

[0011] Preferably, the feed pipe is configured as a spiral.

[0012] Compared with the prior art, the present invention provides a drug delivery device for a high-performance liquid chromatograph, which has the following beneficial effects:

[0013] 1. This high-performance liquid chromatograph drug delivery device moves the connecting plate by moving the piston rod of the cylinder. Different connecting cylinders and injection tubes can be aligned and set above different test tubes. After turning on the infusion pump and valve body, the drugs inside different drug tanks can be injected into the test tubes through the infusion pump, delivery tube, connecting cylinder and injection tube. It can perform drug delivery processing, which is convenient to adjust according to needs and ensures the flexibility of drug delivery.

[0014] 2. The drug feeding device of this high performance liquid chromatograph can drive the screw to rotate and move the slider and the box body by rotating the output shaft of the motor. This allows multiple test tubes to move along the inner wall of the frame, which is convenient for quick and efficient multiple drug feeding processes. The controller can drive the electromagnet to be energized and magnetized, which can adsorb strong magnetic blocks and make the connecting tube stably set inside the connecting plate.

[0015] 3. The high-performance liquid chromatograph drug injection device can drive the electromagnet to reverse the magnetic field through the controller. The magnetic poles on one side of adjacent strong magnetic blocks are the same, which generates a repulsive force. This can make the strong magnetic blocks slide along the inner wall of the slide and separate from the electromagnet. This can make the connecting cylinder and the drug injection tube move down closer to the top of the test tube, ensuring the accuracy of drug injection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a high-performance liquid chromatograph drug delivery device proposed in this utility model;

[0017] Figure 2 for Figure 1 Enlarged structural diagram of part A in the middle section;

[0018] Figure 3 for Figure 1 A three-dimensional structural diagram of the central medicine storage tank.

[0019] In the diagram: 1. Frame, 2. Box, 3. Test tube, 4. Medicine tank, 5. Infusion pump, 6. Feed pipe, 7. Connecting cylinder, 8. Injection pipe, 9. Valve body, 10. Motor, 11. Slider, 12. Screw, 13. Cylinder, 14. Connecting plate, 15. Controller, 16. Electromagnet, 17. Strong magnetic block, 18. Stabilizing block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-3 A high-performance liquid chromatograph (HPLC) drug delivery device includes a frame 1, a box 2 slidably mounted on the inner wall of the bottom end of the frame 1, multiple test tubes 3 inserted into the inside of the box 2, multiple drug containers 4 fixedly connected to the inner wall of the top end of the frame 1, infusion pumps 5 respectively mounted at the bottom of the multiple drug containers 4, delivery pipes 6 respectively fixedly connected to the bottom of the multiple infusion pumps 5, connecting cylinders 7 respectively fixedly connected to the end of the multiple delivery pipes 6 opposite to the infusion pumps 5, injection pipes 8 respectively fixedly connected to the bottom of the multiple connecting cylinders 7, valve bodies 9 respectively mounted on the wall of the multiple injection pipes 8, a cylinder 13 fixedly connected to the inner wall of the frame 1, a connecting plate 14 fixedly connected to the piston rod end of the cylinder 13, multiple connecting cylinders 7 simultaneously fixedly connected to the inner wall of the connecting plate 14, and a motor 10 fixedly connected to the inner wall of the bottom end of the frame 1.

[0022] A rectangular groove is provided on the inner wall of the bottom end of the frame 1. A screw 12 is rotatably provided on the inner wall of the rectangular groove of the frame 1. A slider 11 is threadedly connected to the rod wall of the screw 12. The top end of the slider 11 is fixedly connected to the bottom of the box 2. The output shaft of the motor 10 is fixedly connected to the end of the screw 12.

[0023] In use, the output shaft of motor 10 rotates, which drives screw 12 to rotate, moving slider 11 and box 2. This allows multiple test tubes 3 to move along the inner wall of frame 1, facilitating quick and efficient multiple drug injection processes. The piston rod of cylinder 13 moves, which drives connecting plate 14 to move. Different connecting cylinders 7 and injection tubes 8 can be aligned and positioned above different test tubes 3. After opening infusion pump 5 and valve body 9, the medicine inside different medicine tanks 4 can be injected into test tubes 3 through infusion pump 5, delivery pipe 6, connecting cylinder 7 and injection tube 8, allowing for drug injection processing. This allows for adjustments based on needs, ensuring flexibility in drug injection.

[0024] To ensure accurate drug delivery, such as Figure 1-3As shown, a controller 15 is fixedly connected to the side wall of the connecting plate 14, and an electromagnet 16 is fixedly connected to the inner wall of the top of the connecting plate 14. The electromagnet 16 is electrically connected to the controller 15. A strong magnetic block 17 is fixedly connected to the side wall of the connecting cylinder 7. A sliding groove is provided on the inner wall of the connecting plate 14. The strong magnetic block 17 is slidably disposed on the inner wall of the sliding groove. The strong magnetic block 17 and the electromagnet 16 are attracted to each other.

[0025] A stabilizing block 18 is fixedly connected to the side wall of the connecting plate 14. A rectangular groove is provided on the inner wall of the frame 1. The stabilizing block 18 is slidably disposed on the inner wall of the rectangular groove. The conveying pipe 6 is spiral in shape.

[0026] The controller 15 can drive the electromagnet 16 to be energized and magnetized, which can attract the strong magnetic block 17 and make the connecting cylinder 7 stably set inside the connecting plate 14. When medicine needs to be injected, in order to improve the accuracy of the injection tube 8, the controller 15 can drive the electromagnet 16 to be magnetized in the opposite direction. The magnetic poles on one side of the adjacent strong magnetic blocks 17 are the same, generating a repulsive force, which can make the strong magnetic blocks 17 slide along the inner wall of the slide and separate from the electromagnet 16. This allows the connecting cylinder 7 and the injection tube 8 to move down closer to the top of the test tube 3, ensuring the accuracy of the injection.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-performance liquid chromatograph drug feeding device, comprising a frame (1), characterized in that: A box (2) is slidably provided on the inner wall of the bottom end of the frame (1). Multiple test tubes (3) are inserted into the inside of the box (2). Multiple medicine tanks (4) are fixedly connected to the inner wall of the top end of the frame (1). Infusion pumps (5) are provided at the bottom of the multiple medicine tanks (4). Feed pipes (6) are fixedly connected to the bottom of the multiple infusion pumps (5). Connecting cylinders (7) are fixedly connected to the end of the multiple feed pipes (6) away from the infusion pumps (5). Injection pipes (8) are fixedly connected to the bottom of the multiple connecting cylinders (7). Valve bodies (9) are provided on the pipe walls of the multiple injection pipes (8). A cylinder (13) is fixedly connected to the inner wall of the frame (1). A connecting plate (14) is fixedly connected to the piston rod end of the cylinder (13). Multiple connecting cylinders (7) are simultaneously fixedly connected to the inner wall of the connecting plate (14). A motor (10) is fixedly connected to the inner wall of the bottom end of the frame (1).

2. The high-performance liquid chromatograph drug delivery device according to claim 1, characterized in that: The bottom inner wall of the frame (1) is provided with a rectangular groove. The frame (1) is provided with a screw (12) rotatably on the inner wall of the rectangular groove. A slider (11) is threadedly connected to the wall of the screw (12). The top of the slider (11) is fixedly connected to the bottom of the box (2). The output shaft of the motor (10) is fixedly connected to the end of the screw (12).

3. The high-performance liquid chromatograph drug delivery device according to claim 1, characterized in that: A controller (15) is fixedly connected to the side wall of the connecting plate (14), and an electromagnet (16) is fixedly connected to the inner top wall of the connecting plate (14). The electromagnet (16) is electrically connected to the controller (15).

4. The high-performance liquid chromatograph drug delivery device according to claim 1, characterized in that: A strong magnetic block (17) is fixedly connected to the side wall of the connecting cylinder (7). A sliding groove is provided on the inner wall of the connecting plate (14). The strong magnetic block (17) is slidably disposed on the inner wall of the sliding groove. The strong magnetic block (17) and the electromagnet (16) are mutually attracted and disposed.

5. The high-performance liquid chromatograph drug delivery device according to claim 1, characterized in that: A stabilizing block (18) is fixedly connected to the side wall of the connecting plate (14), and a rectangular sliding groove is provided on the inner wall of the frame (1). The stabilizing block (18) is slidably disposed on the inner wall of the rectangular sliding groove.

6. The high-performance liquid chromatograph drug delivery device according to claim 1, characterized in that: The feed pipe (6) is configured as a spiral.

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