Combined liquid chromatography column

Abstract

The utility model discloses a combined liquid chromatography column, including chromatographic column main part, the chromatographic column main part includes cylinder, suite and column pipe, cylinder and suite outer wall are fixedly connected with the hanger and the boss respectively, the boss outer wall rotationally connected with the cover frame, the cover frame outside integrated has telescopic frame and be used for maintaining telescopic frame position's elastic component, telescopic frame is overlapped in the hanger outside. In this application, after the complete screwing of the cylinder and the column pipe, the boss corresponds to the hanger, the telescopic frame is stretched by pulling, then the cover frame is overturned with the telescopic frame, so that the telescopic frame covers the outside of the hanger, the telescopic frame is overlapped to the outside of the hanger under the action of the spring, so the axial position of the cylinder and the column pipe can be constrained, the connection of the cylinder and the column pipe is reinforced, and the cooperation of the cylinder, the suite and the column pipe is not affected, thereby the stability of the liquid chromatography column is improved.

Description

Technical Field

[0001] This utility model relates to the field of liquid chromatography column technology, and in particular to a combined liquid chromatography column. Background Technology

[0002] A liquid chromatography column is the core component in a liquid chromatography system for separating mixtures. Its principle is to use the stationary phase packed inside the column to interact with the sample components carried by the mobile phase through differential adsorption, partitioning, or ion exchange, thereby separating different components in sequence and providing a basis for subsequent detection and analysis.

[0003] Chinese Patent Publication No. CN220340134U, published on 20240112, discloses a liquid chromatography column, including a column tube and a first connector. Openings are provided at both ends of the column tube, and the first connector is connected to the right end of the column tube. The column also includes a filter device, an inner cylinder, a piston, a spring, and a limiting block. The inner cylinder is located inside the column tube, with its left end connected to the left end opening of the column tube. The filter device is connected to the left end opening of the column tube and is used to filter materials entering the column tube. Multiple sets of through holes are circumferentially arranged on the outer wall of the inner cylinder. The piston is slidably installed inside the inner cylinder and is used to block the multiple sets of through holes. The spring is installed in conjunction with the right side of the inner cylinder.

[0004] In existing liquid chromatography columns, the cylinder and column tube are mostly connected by threads, and the connection between the two is reinforced by set screws on the assembly. However, in actual implementation, it is not easy to control the rotation of the set screw, which can easily push the assembly back and cause forced deformation. The connection between the cylinder and column tube can be further optimized. Therefore, it is urgent to propose a corresponding combined liquid chromatography column to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to propose a combined liquid chromatography column to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A combined liquid chromatography column includes a column body, which includes a cylinder, a kit, and a column tube. The outer walls of the cylinder and the kit are respectively fixedly connected to a hanger and a boss. The outer wall of the boss is rotatably connected to a sleeve. The outer side of the sleeve integrates a telescopic frame and an elastic component for maintaining the position of the telescopic frame. The telescopic frame overlaps the outer side of the hanger.

[0008] Preferably, an outer seat is fixedly connected to the outer wall of the cylinder, and a filter screen is provided inside the outer seat.

[0009] Preferably, the inner wall of the outer seat is detachably connected to a recess, and the inner wall of the recess is fixedly connected to the filter screen.

[0010] Preferably, an installation strip is fixedly connected to the top of the insert, and the installation strip is fixedly connected to the inner surface wall of the top of the outer seat by countersunk screws.

[0011] Preferably, the elastic component includes a spring, the telescopic frame has a U-shaped structure, and the spring is fixedly connected between the horizontal open end of the telescopic frame and the inner wall of the sleeve.

[0012] Preferably, a pull ring is fixedly connected to the side of the telescopic frame away from the boss.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this application, after the cylinder and column tube are fully screwed together, the protrusion corresponds to the bracket. Pulling the telescopic bracket extends it outward, and the spring is stretched. Then, the sleeve and telescopic bracket are flipped over so that the telescopic bracket covers the outside of the bracket. The telescopic bracket is then released, and the telescopic bracket overlaps the outside of the bracket under the action of the spring. This can constrain the axial position of the cylinder and column tube, thereby strengthening the connection between the cylinder and column tube without affecting the fit between the cylinder, the sleeve and the column tube, thus improving the stability of the liquid chromatography column.

[0015] 2. In this application, an outer seat is extended on the outside of the cylinder. When it is necessary to disassemble or assemble the filter screen, it is only necessary to separate the countersunk screws on the top of the outer seat and then remove the insert and filter screen from the top of the outer seat. There is no need to separate the cylinder and the kit, thereby improving the convenience of using the combined liquid chromatography column. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 2 A schematic diagram of the insert structure provided according to an embodiment of the present utility model is shown;

[0018] Figure 3 A schematic diagram of the sleeve structure provided according to an embodiment of the present utility model is shown;

[0019] Figure 4 A schematic diagram of a spring structure according to an embodiment of the present invention is shown.

[0020] Legend:

[0021] 1. Column body; 101. Shell; 102. Kit; 103. Column tube; 2. Outer seat; 3. Mounting strip; 4. Countersunk screw; 5. Plug; 6. Hanger; 7. Embedded seat; 8. Filter screen; 9. Sleeve; 10. Telescopic frame; 11. Spring; 12. Pull ring. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A combined liquid chromatography column includes a column body 1, which includes a cylinder 101, a kit 102 and a column tube 103. The outer walls of the cylinder 101 and the kit 102 are respectively fixedly connected to a hanger 6 and a boss 5. The outer wall of the boss 5 is rotatably connected to a sleeve 9. The outer side of the sleeve 9 is integrated with a telescopic frame 10 and an elastic component for maintaining the position of the telescopic frame 10. The telescopic frame 10 overlaps the outer side of the hanger 6.

[0025] After the cylinder 101 and column tube 103 are fully screwed together, the boss 5 corresponds to the hanger 6. Pull the telescopic frame 10 to extend it outward, and the spring 11 is stretched. Then, flip the sleeve 9 and the telescopic frame 10 so that the telescopic frame 10 covers the outside of the hanger 6. Release the telescopic frame 10, and the telescopic frame 10 overlaps the outside of the hanger 6 under the action of the spring 11. This can constrain the axial position of the cylinder 101 and column tube 103, and strengthen the connection between the cylinder 101 and column tube 103 without affecting the fit between the cylinder 101, the kit 102 and the column tube 103, thereby improving the stability of the liquid chromatography column.

[0026] Specifically, such as Figure 2 and Figure 4 As shown, the outer wall of the cylinder 101 is fixedly connected to the outer seat 2, and the outer seat 2 is equipped with a filter screen 8. The inner wall of the outer seat 2 is detachably connected to the insert 7, and the inner wall of the insert 7 is fixedly connected to the filter screen 8. The top of the insert 7 is fixedly connected to the mounting strip 3, and the mounting strip 3 is fixedly connected to the top inner wall of the outer seat 2 by countersunk screws 4. The outer seat 2 extends outward from the outer side of the cylinder 101. When it is necessary to disassemble or assemble the filter screen 8, it is only necessary to separate the countersunk screws 4 at the top of the outer seat 2 and then remove the insert 7 and the filter screen 8 from the top of the outer seat 2. There is no need to separate the cylinder 101 and the kit 102, thereby improving the convenience of using the combined liquid chromatography column.

[0027] Specifically, such as Figure 2 and Figure 3As shown, the elastic component includes a spring 11. The telescopic frame 10 has a U-shaped structure. The spring 11 is fixedly connected between the horizontal open end of the telescopic frame 10 and the inner wall of the sleeve 9 to maintain the telescopic frame 10 in a stable state on the outside of the hanging bracket 6. A pull ring 12 is fixedly connected to the side of the telescopic frame 10 away from the protrusion 5 to facilitate the easy assembly and disassembly of the telescopic frame 10 and the hanging bracket 6.

[0028] Working principle: After the cylinder 101 and column tube 103 are fully screwed together, the convex seat 5 corresponds to the hanger 6. Pull the telescopic frame 10 to extend it outward, and the spring 11 is stretched. Then, flip the sleeve 9 and the telescopic frame 10 so that the telescopic frame 10 covers the outside of the hanger 6. Release the telescopic frame 10, and the telescopic frame 10 overlaps the outside of the hanger 6 under the action of the spring 11. This can constrain the axial position of the cylinder 101 and column tube 103, and strengthen the connection between the cylinder 101 and column tube 103 without affecting the fit between the cylinder 101, the kit 102 and the column tube 103, thereby improving the stability of the liquid chromatography column. The outer seat 2 extends outward from the outside of the cylinder 101. When it is necessary to disassemble or install the filter screen 8, it is only necessary to separate the countersunk screw 4 at the top of the outer seat 2 and then take out the insert 7 and the filter screen 8 from the top of the outer seat 2. There is no need to separate the cylinder 101 and the kit 102, thereby improving the convenience of using the combined liquid chromatography column.

[0029] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combined liquid chromatography column, comprising a column body (1), wherein the column body (1) comprises a cylinder (101), a kit (102), and a column tube (103), characterized in that, The outer walls of the cylinder (101) and the kit (102) are respectively fixedly connected to a hanger (6) and a boss (5). The outer wall of the boss (5) is rotatably connected to a sleeve (9). The outer side of the sleeve (9) is integrated with a telescopic frame (10) and an elastic component for maintaining the position of the telescopic frame (10). The telescopic frame (10) overlaps the outer side of the hanger (6).

2. The combined liquid chromatography column according to claim 1, characterized in that, The outer wall of the cylinder (101) is fixedly connected to the outer seat (2), and a filter screen (8) is provided inside the outer seat (2).

3. The combined liquid chromatography column according to claim 2, characterized in that, The inner wall of the outer seat (2) is detachably connected to a base (7), and the inner wall of the base (7) is fixedly connected to the filter screen (8).

4. The combined liquid chromatography column according to claim 3, characterized in that, The top of the insert (7) is fixedly connected to an installation strip (3), and the installation strip (3) is fixedly connected to the inner surface of the top of the outer seat (2) by countersunk screws (4).

5. The combined liquid chromatography column according to claim 4, characterized in that, The elastic component includes a spring (11), the telescopic frame (10) has a U-shaped structure, and the spring (11) is fixedly connected between the horizontal open end of the telescopic frame (10) and the inner wall of the sleeve (9).

6. The combined liquid chromatography column according to claim 5, characterized in that, A pull ring (12) is fixedly connected to the side of the telescopic frame (10) away from the boss (5).

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