Extrusion assembly type liquid chromatographic column

Abstract

The utility model discloses an extrusion assembly type liquid chromatographic column which comprises a liquid chromatographic column body, a column tube is arranged on the liquid chromatographic column body, external thread columns are fixed at two ends of the column tube, pressing caps are in threaded connection with the two external thread columns, filter plates and sealing rings are arranged in the pressing caps, and the filter plates and the sealing rings are arranged on the liquid chromatographic column body. A protection mechanism for protecting the column pipe is movably connected to the exterior of the column pipe in a sleeving mode, and a cleaning mechanism for cleaning the column pipe is in threaded connection with the interior of the protection mechanism, so that the defect that a communication sleeve, a rotating disc, a protection strip and a silica gel filler strip are used for protection in the prior art is overcome, reading is convenient, and the practicability is high. The outer wall of the transparent toughened glass sleeve is also convenient to clean, and the brush is directly placed on the liquid chromatographic column body, so that when the column tube needs to be cleaned, time is not wasted to find a cleaning tool, and the motor drives the brush to clean the column tube, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of chromatographic columns, in particular to an extrusion assembly type liquid chromatographic column. Background Art

[0002] A liquid chromatography column is an instrument used for liquid chromatography analysis, consisting of a column tube, a pressure cap / cassette, a sieve plate (filter), etc.

[0003] According to the announcement number CN218653085U, an extrusion assembly type liquid chromatography column is disclosed, including a chromatography column tube, the left and right ends of the chromatography column tube are fixedly installed with a connecting sleeve, the outer surface of the connecting sleeve is movably sleeved with a protective mechanism, the outer side surface of the connecting sleeve is threadedly sealed with a connecting cap head, the outer end of the connecting cap head is fixedly sleeved with a mounting sleeve, the outer side surface of the mounting sleeve is provided with an embedded groove, the inner clamping of the embedded groove is embedded with a sieve plate, the left and right ends of the outer surface of the sieve plate are fixedly installed with positioning protrusions, and the outer surface of the outer end of the embedded groove is threadedly sealed with a plug cap. The utility model can provide a certain protection for the chromatography column tube during use and placement by setting a protective mechanism and utilizing the mutual cooperation between the connecting sleeve, the turntable, the protective strip and the silicone pad strip, so as to avoid the chromatography column tube from being bumped and damaged, thereby improving the practicality of the chromatography column.

[0004] However, the above-mentioned extruded assembled liquid chromatography column has the following defects:

[0005] Although a protective mechanism is provided on the chromatographic column tube to protect the chromatographic column tube from knocks and falls, the protective mechanism adopts the cooperation between the connecting sleeve, the turntable, the protective strip and the silicone pad strip for protection, which is relatively complicated. The connecting sleeve is easy to block the reading, and the outer wall of the connecting sleeve is easy to be stained, which is inconvenient to clean the connecting sleeve. Moreover, the inner wall of the chromatographic column tube needs to be cleaned after use. When cleaning, it is necessary to find special tools for cleaning, which is relatively inconvenient.

[0006] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0007] In view of the problems in the related technology, the utility model proposes an extrusion-assembled liquid chromatography column to overcome the above-mentioned technical problems existing in the existing related technology.

[0008] To this end, the specific technical solutions adopted by the utility model are as follows:

[0009] An extruded assembled liquid chromatography column comprises a liquid chromatography column body, a column tube is arranged on the liquid chromatography column body, external threaded columns are fixed at both ends of the column tube, two external threaded columns are threadedly connected with pressure caps, filter plates and sealing rings are arranged inside the pressure caps, a protective mechanism for protecting the column tube is movably sleeved on the outside of the column tube, and a cleaning mechanism for cleaning the column tube is threadedly connected inside the protective mechanism.

[0010] As a further solution of the utility model, the protective mechanism includes a transparent tempered glass sleeve, the inner wall of the transparent tempered glass sleeve is in contact and movably connected with the outer wall of the column tube, a threaded hole is opened on one side of the transparent tempered glass sleeve, and the cleaning mechanism is threadedly connected to the threaded hole.

[0011] As a further solution of the utility model, the cleaning mechanism includes a cylindrical barrel, a connecting rod is provided on one side of the cylindrical barrel, and a brush is fixed on the outer wall of the connecting rod.

[0012] As a further solution of the utility model, one side of the cylindrical tube is threadedly connected to the threaded hole.

[0013] As a further solution of the utility model, a cavity is opened on the other side of the cylindrical tube, the outside of the cavity is movably connected to a cover via a hinge, a motor is fixed in the cavity, and the output end of the motor is fixedly connected to the connecting rod.

[0014] As a further solution of the utility model, a circuit board is fixed inside the cavity, and a switch and a battery are arranged on the circuit board.

[0015] As a further solution of the utility model, the diameter of the connecting rod is smaller than the diameter of the threaded hole.

[0016] The beneficial effects of the utility model are as follows: by arranging a protective mechanism of a transparent tempered glass sleeve on the outside of the column tube, the disadvantages of the existing use of the connecting sleeve, the turntable, the protective strip and the silicone pad strip for protection are avoided, the reading is convenient, and the outer wall of the transparent tempered glass sleeve is also convenient to clean. By arranging the cleaning mechanism, a brush is directly placed on the liquid chromatography column body. When the column tube needs to be cleaned, there is no need to waste time looking for a cleaning tool. The motor drives the brush to clean the column tube, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of an extrusion-assembled liquid chromatography column according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of an explosion of a liquid chromatography column body of an extrusion-assembled liquid chromatography column according to an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the cooperation of a protection mechanism and a cleaning mechanism of an extrusion-assembled liquid chromatography column according to an embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the matching of a cylindrical barrel and a brush of an extrusion-assembled liquid chromatography column according to an embodiment of the utility model;

[0022] Figure 5 It is a schematic diagram of a cylindrical barrel of an extrusion-assembled liquid chromatography column according to an embodiment of the utility model.

[0023] In the figure:

[0024] 1. Liquid chromatography column body; 2. Column tube; 3. Pressure cap; 4. Filter plate; 5. Protection mechanism; 6. Cleaning mechanism; 7. Transparent tempered glass sleeve; 8. Threaded hole; 9. Cylindrical tube; 10. Connecting rod; 11. Brush; 12. Cover; 13. Motor; 14. Circuit board; 15. Switch; 16. Battery. DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] According to an embodiment of the utility model, an extrusion-assembled liquid chromatography column is provided.

[0027] Please refer to the instruction manual Figure 1-5 According to an embodiment of the utility model, an extruded assembled liquid chromatography column comprises a liquid chromatography column body 1, on which a column tube 2 is arranged, both ends of the column tube 2 are fixed with external threaded columns, two external threaded columns are threadedly connected with pressure caps 3, a filter plate 4 and a sealing ring are arranged inside the pressure caps 3, the outer movably sleeve of the column tube 2 is provided with a protective mechanism 5 for protecting the column tube 2, and the inner thread of the protective mechanism 5 is threadedly connected with a cleaning mechanism 6 for cleaning the column tube 2.

[0028] It avoids the disadvantages of the existing use of the connecting sleeve, the turntable, the protective strip and the silicone pad to cooperate with each other for protection, facilitates reading, and the outer wall of the transparent tempered glass sleeve 7 is also easy to clean. When the column tube 2 needs to be cleaned, there is no need to waste time and need cleaning tools, which is simple and convenient.

[0029] In one embodiment, please refer to the attached specification Figure 3 As a further solution of the utility model, the protective mechanism 5 includes a transparent tempered glass sleeve 7, the inner wall of the transparent tempered glass sleeve 7 is in contact and movably connected with the outer wall of the column tube 2, a threaded hole 8 is opened on one side of the transparent tempered glass sleeve 7, and the cleaning mechanism 6 is threadedly connected to the threaded hole 8.

[0030] By arranging the protective mechanism 5 of the transparent tempered glass sleeve 7 outside the column tube 2, the disadvantages of the existing protection by using the mutual cooperation between the connecting sleeve, the turntable, the protective strip and the silicone pad strip are avoided, the reading is convenient, and the outer wall of the transparent tempered glass sleeve 7 is also convenient to clean.

[0031] In another embodiment, please refer to the attached Figure 4 and 5 As a further solution of the utility model, the cleaning mechanism 6 includes a cylindrical barrel 9, a connecting rod 10 is provided on one side of the cylindrical barrel 9, a brush 11 is fixed on the outer wall of the connecting rod 10, one side of the cylindrical barrel 9 is threadedly connected to the threaded hole 8, and a cavity is opened on the other side of the cylindrical barrel 9, and a cover 12 is movably connected to the outside of the cavity through a hinge, a motor 13 is fixed in the cavity, and the output end of the motor 13 is fixedly connected to the connecting rod 10, a circuit board 14 is fixed inside the cavity, a switch 15 and a battery 16 are provided on the circuit board 14, and the diameter of the connecting rod 10 is smaller than the diameter of the threaded hole 8.

[0032] By setting the cleaning mechanism 6 and placing the brush 11 directly on the liquid chromatography column body 1, when the column tube 2 needs to be cleaned, there is no need to waste time on cleaning tools. The motor 13 drives the brush 11 to clean the column tube 2, which is simple and convenient.

[0033] When in use, firstly, the transparent tempered glass sleeve 7 of the protection mechanism 5 is sleeved on the outer wall of the column tube 2, and then the filter plate 4 and the sealing ring are placed in the pressure cap 3, and then the pressure cap 3 is tightened, and one end of the pressure cap 3 presses the side wall of the transparent tempered glass sleeve 7 to fix the transparent tempered glass sleeve 7. When the outer wall of the transparent tempered glass sleeve 7 is dirty, it can be directly rinsed with clean water or wiped with a wet towel, avoiding the disadvantages of the existing use of the connecting sleeve, the turntable, the protection strip and the silicone pad strip to cooperate with each other for protection, and facilitating reading. When it is necessary to clean the column tube 2, unscrew the cylindrical tube 9 of the cleaning mechanism 6, take out the brush 11, and then insert the brush 11 into the column tube 2, add clean water, open the cover 12, press the switch 15, and the motor 13 drives the brush 11 to rotate to clean the column tube 2. There is no need to waste time looking for cleaning tools, which is simple and convenient.

[0034] 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. An extrusion-assembled liquid chromatography column, comprising a liquid chromatography column body (1), characterized in that: The liquid chromatography column body (1) is provided with a column tube (2), both ends of the column tube (2) are fixed with external threaded columns, the two external threaded columns are threadedly connected with pressure caps (3), the interior of the pressure caps (3) are provided with filter plates (4) and sealing rings, the exterior of the column tube (2) is movably sleeved with a protection mechanism (5) for protecting the column tube (2), and the interior of the protection mechanism (5) is threadedly connected with a cleaning mechanism (6) for cleaning the column tube (2).

2. The extrusion-assembled liquid chromatography column according to claim 1, characterized in that: The protection mechanism (5) comprises a transparent tempered glass sleeve (7), the inner wall of the transparent tempered glass sleeve (7) being in contact and movably connected with the outer wall of the column tube (2), a threaded hole (8) being provided on one side of the transparent tempered glass sleeve (7), and the cleaning mechanism (6) being threadedly connected with the threaded hole (8).

3. The extrusion-assembled liquid chromatography column according to claim 2, characterized in that: The cleaning mechanism (6) comprises a cylindrical barrel (9), a connecting rod (10) is arranged on one side of the cylindrical barrel (9), and a brush (11) is fixed on the outer wall of the connecting rod (10).

4. The extrusion-assembled liquid chromatography column according to claim 3, characterized in that: One side of the cylindrical tube (9) is threadedly connected to the threaded hole (8).

5. The extrusion-assembled liquid chromatography column according to claim 4, characterized in that: A cavity is provided on the other side of the cylindrical tube (9), the outside of the cavity is movably connected to a cover (12) via a hinge, a motor (13) is fixed in the cavity, and the output end of the motor (13) is fixedly connected to the connecting rod (10).

6. The extrusion-assembled liquid chromatography column according to claim 5, characterized in that: A circuit board (14) is fixed inside the cavity, and a switch (15) and a storage battery (16) are arranged on the circuit board (14).

7. The extrusion-assembled liquid chromatography column according to claim 3, characterized in that: The diameter of the connecting rod (10) is smaller than the diameter of the threaded hole (8).

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