Combined liquid chromatographic column

Abstract

The utility model relates to the technical field of liquid chromatographic columns, and discloses a combined type liquid chromatographic column which comprises a column body, an outer shell is movably sleeved on the outer wall of the column body, an outer thread ring is fixedly assembled on the outer edge of the left side of the column body, an inner thread ring which can be in threaded connection with the outer thread ring is fixedly assembled on the outer edge of the right side of the column body, and the outer wall of the column body is movably sleeved with the outer shell. The outer edge of the outer threaded ring is in threaded connection with a left nut, and the inner wall of the inner threaded ring is in threaded connection with a right nut. The column body is provided with the external thread ring and the internal thread ring, and the external thread ring and the internal thread ring can be in threaded connection, so that two same column bodies can be spliced, the length of the column bodies can be flexibly increased, and the problems that the column bodies of the existing liquid chromatographic column cannot be combined for use, and the column bodies cannot be combined for use are solved. And when a long liquid chromatographic column needs to be used, only the long liquid chromatographic column can be customized at the moment, so that the problem that the existing liquid chromatographic column is not flexible enough to assemble and the experiment cost is increased is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid chromatographic column technical field, concretely is a combined liquid chromatographic column. BACKGROUND

[0002] Liquid chromatographic column is used for liquid chromatographic analysis instrument, and the liquid chromatographic column is mainly used for separating and purifying different components in liquid sample.

[0003] The column body of the existing liquid chromatographic column cannot be combined, when long liquid chromatographic column needs to be used, only long liquid chromatographic column can be customized at the time, thereby leading to that the existing liquid chromatographic column is not flexible enough in assembly, thereby leading to the problem of increased experimental cost, and the filter disc is placed between the column body and the nut, and the filter disc cannot be limited, thereby leading to the problem that the filter disc is easy to fall off during the assembly of the chromatographic column. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model provides a combined liquid chromatographic column, which has the advantages of convenient assembly and disassembly, flexible column lengthening, and solves the problems raised in the above background art.

[0005] The utility model provides the following technical scheme: a combined liquid chromatographic column, which comprises a column body, an outer shell body movably connected to the outer wall of the column body, an outer thread ring fixedly assembled to the outer edge of the left side of the column body, an inner thread ring fixedly assembled to the outer edge of the right side of the column body and threadedly connected with the outer thread ring, a left nut threadedly connected to the outer edge of the outer thread ring, and a right nut threadedly connected to the inner wall of the inner thread ring.

[0006] As a preferred technical scheme of the utility model, a left side hole is formed in the inner wall of the left side of the column body, a left filter disc is mounted to the inner wall of the left side hole, a right side hole is formed in the inner wall of the right side of the column body, and a right filter disc is mounted to the inner wall of the right side hole.

[0007] As a preferred technical scheme of the utility model, the outer edges of the left filter disc and the right filter disc are fixedly assembled with a taking handle, and the taking handle on the left filter disc and the taking handle on the right filter disc are respectively close to the left nut side and the right nut side.

[0008] As a preferred technical scheme of the utility model, a left side sealing ring is arranged between the outer thread ring and the left nut, and a right side sealing ring is arranged between the inner thread ring and the right nut.

[0009] As a preferred technical scheme of the utility model, the diameters of the left nut and the right nut inner cavity are 5mm longer than the length of the taking handle.

[0010] As a preferred technical scheme of the utility model, the inner wall of the right side nut is fixedly assembled with a clamping block, and the outer edge of the outer shell body is provided with a clamping groove.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1、The combination type liquid chromatography column, through the outer thread ring and the inner thread ring arranged on the column body, the outer thread ring and the inner thread ring can be threadedly connected, two same column bodies can be assembled, the length of the column body can be flexibly lengthened, and therefore the problem that the column body of the existing liquid chromatography column cannot be combined and used is solved, when a long liquid chromatography column is needed, the liquid chromatography column can only be customized at the moment, thereby leading to the problem that the existing liquid chromatography column is not flexible enough in assembly, thereby leading to the problem of increased experimental cost.

[0013] 2、The combination type liquid chromatography column, through the setting of the taking handle on the left side filter disc and the right side filter disc, when the left side filter disc and the right side filter disc are installed and taken out, the user can take out the left side filter disc and the right side filter disc by clamping the taking handle with tweezers, the device is convenient to assemble and disassemble, and therefore the problem that the filter disc cannot be limited and is prone to falling off during the assembly of the chromatography column is solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front perspective structure schematic view of the utility model;

[0015] Figure 2 It is a sectional structure schematic view of the utility model;

[0016] Figure 3 It is a front perspective structure schematic view of the utility model; Figure 2

[0017] Figure 4 It is an enlarged structure schematic view of the B place in the utility model; Figure 2

[0018] It is an enlarged structure schematic view of the B place in the utility model; Figure 5

[0019] It is a taking handle structure schematic view of the utility model; Figure 6 It is an outer shell body and right side nut structure schematic view of the utility model.

[0020] In the drawing: 1, column body; 2, outer shell body; 3, outer thread ring; 4, inner thread ring; 5, left side nut; 6, right side nut; 7, left side round hole; 8, right side round hole; 9, left side filter disc; 10, right side filter disc; 11, taking handle; 12, left side sealing ring; 13, right side sealing ring; 14, clamping block; 15, clamping groove. DETAILED DESCRIPTION​

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figure 1 Figure 6 A combined liquid chromatography column, comprising a column body 1, the outer wall of the column body 1 movably sleeved with an outer shell 2, the outer edge of the left side of the column body 1 fixedly assembled with an outer thread ring 3, the outer edge of the right side of the column body 1 fixedly assembled with an inner thread ring 4 which can be threadedly connected with the outer thread ring 3, the outer edge of the outer thread ring 3 threadedly connected with a left side nut 5, the inner wall of the inner thread ring 4 threadedly connected with a right side nut 6, through the setting of the outer thread ring 3 and the inner thread ring 4, the left side nut 5 can be connected on the outer thread ring 3, the right side nut 6 can be connected on the inner thread ring 4, and meanwhile, two identical column bodies 1 can be spliced for use, the outer thread ring 3 on another column body 1 is screwed into the inner thread ring 4 on the column body 1, so that the two column bodies 1 can be used for lengthening, improving the flexibility of the device.

[0023] In a preferred embodiment, the inner wall of the left side of the column body 1 is provided with a left side round hole 7, the inner wall of the left side round hole 7 is mounted with a left side filter piece 9, the inner wall of the right side of the column body 1 is provided with a right side round hole 8, the inner wall of the right side round hole 8 is mounted with a right side filter piece 10, through the setting of the left side filter piece 9 and the right side filter piece 10 in the column body 1, at this time, the left side nut 5 can fix the left side filter piece 9, the right side nut 6 can fix the right side filter piece 10, and meanwhile, the left side filter piece 9 and the right side filter piece 10 are convenient to install in the column body 1, and the left side filter piece 9 and the right side filter piece 10 can be slid into the left side round hole 7 and the right side round hole 8 respectively.

[0024] In a preferred embodiment, the outer edge of the left side filter piece 9 and the right side filter piece 10 is fixedly assembled with a taking handle 11, and the taking handle 11 on the left side filter piece 9 and the taking handle 11 on the right side filter piece 10 are respectively close to the left side nut 5 side and the right side nut 6 side, through the setting of the taking handle 11, when the left side filter piece 9 and the right side filter piece 10 are installed and taken out, they are clamped on the taking handle 11 by tweezers, then the tweezers is pulled outward, so that the left side filter piece 9 can be pulled out of the column body 1, and the taking handle 11 plays a role of facilitating taking the left side filter piece 9 and the right side filter piece 10.

[0025] ​In a preferred embodiment, the left sealing ring 12 is arranged between the outer thread ring 3 and the left nut 5, and the right sealing ring 13 is arranged between the inner thread ring 4 and the right nut 6, so that the left sealing ring 12 can seal the gap between the left nut 5 and the outer thread ring 3, and the right sealing ring 13 can seal the gap between the right nut 6 and the inner thread ring 4.

[0026] In a preferred embodiment, the diameters of the inner cavities of the left nut 5 and the right nut 6 are 5mm longer than the length of the taking handle 11, so that the left nut 5 and the right nut 6 do not contact the taking handle 11 when rotating, and the left nut 5 and the right nut 6 can be screwed into the outer thread ring 3 and the inner thread ring 4 respectively, thereby improving the rationality of the device.

[0027] In a preferred embodiment, the inner wall of the right nut 6 is fixedly provided with a clamping block 14, and the outer edge of the outer shell 2 is provided with a clamping groove 15, so that when the clamping groove 15 is clamped on the clamping block 14, the outer shell 2 cannot rotate, and the clamping block 14 limits the outer shell 2.

[0028] Working principle, when installing, the right filter disc 10 is placed in the right circular hole 8, at this time the taking handle 11 on the right filter disc 10 faces the right nut 6, then the right sealing ring 13 is placed on the inner thread ring 4, and the right nut 6 is screwed on the inner thread ring 4, when the right nut 6 cannot be screwed, at this time the right nut 6 is installed, then the left filter disc 9 is placed in the left circular hole 7, at this time the taking handle 11 on the left filter disc 9 faces the left nut 5, then the left sealing ring 12 is placed on the outer thread ring 3, and the left nut 5 is screwed on the outer thread ring 3, when the left nut 5 cannot be screwed, at this time the left nut 5 is installed, when the length of the column 1 needs to be lengthened, the outer thread ring 3 end of another column 1 is screwed into the inner thread ring 4 of the column 1, at this time the two columns 1 are spliced.

[0029] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A modular liquid chromatography column comprising a column body (1), characterized in that: The outer wall of the column (1) is movably sleeved with an outer shell (2), the outer edge of the left side of the column (1) is fixedly provided with an outer thread ring (3), the outer edge of the right side of the column (1) is fixedly provided with an inner thread ring (4) which can be threadedly connected with the outer thread ring (3), the outer edge of the outer thread ring (3) is threadedly connected with a left side nut (5), and the inner wall of the inner thread ring (4) is threadedly connected with a right side nut (6).

2. The modular liquid chromatography column of claim 1, wherein: The inner wall of the left side of the column (1) is provided with a left side circular hole (7), the inner wall of the left side circular hole (7) is mounted with a left side filter piece (9), the inner wall of the right side of the column (1) is provided with a right side circular hole (8), and the inner wall of the right side circular hole (8) is mounted with a right side filter piece (10).

3. The modular liquid chromatography column of claim 2, wherein: The outer edges of the left side filter piece (9) and the right side filter piece (10) are fixedly provided with taking handles (11), and the taking handles (11) on the left side filter piece (9) and the right side filter piece (10) are respectively close to the left side nut (5) side and the right side nut (6) side.

4. The modular liquid chromatography column of claim 1, wherein: The left side nut (5) and the right side nut (6) are provided with left side sealing rings (12) and right side sealing rings (13) respectively.

5. The modular liquid chromatography column of claim 1, wherein: The diameters of the inner cavities of the left side nut (5) and the right side nut (6) are 5mm longer than the length of the taking handle (11).

6. The modular liquid chromatography column of claim 1, wherein: The inner wall of the right side nut (6) is fixedly provided with a clamping block (14), and the outer edge of the outer shell (2) is provided with a clamping groove (15).

Images