Chromatographic column with sealing assembly

Abstract

The chromatographic column with the sealing assembly comprises a second chromatographic column, a first chromatographic column is arranged at the top of the second chromatographic column, a third chromatographic column is arranged at the bottom of the second chromatographic column, an insertion block is arranged on the inner side of the top of the second chromatographic column, a fixing notch is formed in the bottom of the inner side of the first chromatographic column, and the insertion block is located at the fixing notch. A thread is arranged in the fixed notch, a first sealing ring is arranged at the bottom of the outer surface of the first chromatographic column, and a second sealing ring is arranged at the top of the outer surface of the second chromatographic column; the annular through grooves are formed in the first sealing ring and the second sealing ring, the sealing rings are arranged at the annular through grooves, and after different chromatographic columns are connected in a threaded mode, the top end of the sealing ring located at the annular through groove of the second sealing ring is in contact with the top end of the annular through groove of the first sealing ring, so that the sealing rings are sealed. Therefore, liquid overflowing from the gap between the first sealing ring and the second sealing ring is sealed again.

Description

Technical Field

[0001] The utility model relates to the technical field of chromatographic columns, in particular to a chromatographic column with a sealing component. Background Art

[0002] Chromatographic columns can be used to purify samples and analyze and detect different components contained in samples during chemical production processes, and to separate components based on the differences in their physical properties.

[0003] China's authorized utility model publication (announcement) number: CN208599226U A chromatographic column with a sealing assembly, comprising a chromatography column assembly and a sealing assembly; the chromatography column assembly comprises four sections of chromatography columns, the sealing assembly comprises three upper sealing rings and three lower sealing rings, the three upper sealing rings are respectively sleeved on the bottoms of the first chromatography column, the second chromatography column and the third chromatography column, the three lower sealing rings are respectively sleeved on the tops of the second chromatography column, the third chromatography column and the fourth chromatography column, the upper sealing ring is provided with a plurality of first tooth tops protruding downward, adjacent to the first tooth tops form tooth grooves one, the lower sealing ring is provided with a plurality of second tooth tops protruding upward, adjacent to the second tooth tops form tooth grooves two; the sealing assembly also includes a sleeve.

[0004] However, the chromatographic column of the prior art is sealed by means of an upper fixing ring and a lower fixing ring during the sealing process, and the liquid overflowing from the gap between the upper fixing ring and the lower fixing ring cannot be re-sealed during the sealing process, which has certain limitations. Utility Model Content

[0005] The utility model aims to provide a chromatography column with a sealing component to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A chromatographic column with a sealing assembly comprises a second chromatographic column, the top of the second chromatographic column is a first chromatographic column, the bottom of the second chromatographic column is a third chromatographic column, an insertion block is arranged on the inner side of the top of the second chromatographic column, a fixing notch is arranged on the inner bottom of the first chromatographic column, the insertion block is inserted into the fixing notch, a thread is arranged inside the fixing notch, the thread is divided into an internal thread and an external thread, the internal thread is located on the outer surface of the insertion block, and the external thread is located on the surface of the fixing notch, a first sealing ring is arranged on the bottom of the outer surface of the first chromatographic column, a second sealing ring is arranged on the top of the outer surface of the second chromatographic column, an annular through groove is arranged on the bottom of the first sealing ring and the top of the second sealing ring, the two annular through grooves are connected, a sealing ring is arranged on the bottom of the annular through groove, a fixing notch is arranged on the inner bottom of the second chromatographic column, and an insertion block is arranged on the inner side of the top of the third chromatographic column.

[0008] Preferably, a first extension plate is provided at the bottom of the outer surface of the first sealing ring, and a second extension plate is provided at the top of the outer surface of the second sealing ring, and the first extension plate and the second extension plate are connected by a fixing pin.

[0009] Preferably, the first extension plate and the second extension plate are made of rigid material.

[0010] Preferably, a rubber stopper is inserted into the top of the first chromatography column, a liquid inlet funnel is provided on one side of the top of the rubber stopper, an air pump is provided on the other side of the top of the rubber stopper, the bottom of the liquid inlet funnel is located below the rubber stopper, and the air pipe of the air pump is located below the rubber stopper.

[0011] Preferably, the bottom center of the third chromatography column is a liquid outlet pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. A chromatography column with a sealing assembly of the utility model has an annular groove at the first sealing ring and the second sealing ring, and a sealing ring is arranged at the annular groove. After different chromatography columns are connected by threads, the top of the sealing ring at the annular groove of the second sealing ring will contact the top of the annular groove of the first sealing ring, so as to realize re-sealing of the liquid overflowing from the gap between the first sealing ring and the second sealing ring.

[0014] 2. A chromatography column with a sealing assembly of the utility model can be used to drill holes at the first extension plate and the second extension plate after several chromatography columns are connected, and then the first extension plate and the second extension plate can be fixed by fixing pins, thereby making the connection between different chromatography columns more stable and preventing the connection from being separated due to the strong vibration of the air pump during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is an overall cross-sectional view of the utility model;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0018] In the figure: 1. first chromatography column; 2. second chromatography column; 3. third chromatography column; 4. liquid outlet pipe; 5. rubber stopper; 6. liquid inlet funnel; 7. air pump; 8. first sealing ring; 9. second sealing ring; 10. first extension plate; 11. second extension plate; 12. fixing pin; 13. insertion block; 14. fixing notch; 15. thread; 16. annular groove; 17. sealing ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1-3 , the utility model provides a technical solution:

[0023] A chromatographic column with a sealing component comprises a second chromatographic column 2, wherein the top of the second chromatographic column 2 is a first chromatographic column 1, and the bottom of the second chromatographic column 2 is a third chromatographic column 3, an insertion block 13 is arranged on the inner side of the top of the second chromatographic column 2, a fixing notch 14 is arranged on the inner bottom of the first chromatographic column 1, the insertion block 13 is inserted into the fixing notch 14, a thread 15 is arranged inside the fixing notch 14, the thread 15 is divided into an internal thread and an external thread, the internal thread is located on the outer surface of the insertion block 13, and the external thread is located on the surface of the fixing notch 14, a first sealing ring 8 is arranged on the bottom of the outer surface of the first chromatographic column 1, a second sealing ring 9 is arranged on the top of the outer surface of the second chromatographic column 2, an annular groove 16 is arranged on the bottom of the first sealing ring 8 and the top of the second sealing ring 9, the two annular grooves 16 are connected, a sealing ring 17 is arranged on the bottom of the annular groove 16, a fixing notch 14 is arranged on the inner bottom of the second chromatographic column 2, and an insertion block 13 is arranged on the inner side of the top of the third chromatographic column 3.

[0024] Furthermore, a first extension plate 10 is provided at the bottom of the outer surface of the first sealing ring 8 , and a second extension plate 11 is provided at the top of the outer surface of the second sealing ring 9 . The first extension plate 10 and the second extension plate 11 are connected by a fixing pin 12 .

[0025] Furthermore, the first extension plate 10 and the second extension plate 11 are made of rigid material.

[0026] Furthermore, a rubber stopper 5 is inserted into the top of the first chromatography column 1, a liquid inlet funnel 6 is arranged on one side of the top of the rubber stopper 5, an air pump 7 is arranged on the other side of the top of the rubber stopper 5, the bottom of the liquid inlet funnel 6 is located below the rubber stopper 5, and the air pipe of the air pump 7 is located below the rubber stopper 5.

[0027] Furthermore, the bottom center of the third chromatography column 3 is a liquid outlet pipe 4 .

[0028] Working principle: Before use, the first chromatography column 1, the second chromatography column 2, and the third chromatography column 3 of the utility model need to be connected. First, the top insertion block 13 of the second chromatography column 2 is inserted into the bottom fixed notch 14 of the first chromatography column 1, and then the second chromatography column 2 is rotated. After it stops rotating, the top of the insertion block 13 will be located at the top of the fixed notch 14, thereby making the first sealing ring 8 and the second sealing ring 9 contact, and the top of the sealing ring 17 at the annular groove 16 of the second sealing ring 9 will also contact the top of the annular groove 1 of the first sealing ring 8, thereby realizing the re-sealing of the liquid overflowing from the gap between the first sealing ring 8 and the second sealing ring 9.

[0029] After several chromatography columns are connected, holes can be drilled at the first extension plate 10 and the second extension plate 11, and then the first extension plate 10 and the second extension plate 11 can be fixed by fixing pins, so as to make the connection between different chromatography columns more stable and prevent the connection from being separated due to the strong vibration of the air pump 7 during use.

[0030] It should be noted that the present invention is the same as the prior art during use and will not be described in detail here.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chromatography column with a sealing assembly, comprising a second chromatography column (2), characterized in that: The top of the second chromatography column (2) is the first chromatography column (1), and the bottom of the second chromatography column (2) is the third chromatography column (3). An insertion block (13) is arranged on the inner side of the top of the second chromatography column (2). A fixing notch (14) is provided on the inner bottom of the first chromatography column (1). The insertion block (13) is inserted into the fixing notch (14). A thread (15) is arranged inside the fixing notch (14). The thread (15) is divided into an internal thread and an external thread. The internal thread is located on the outer surface of the insertion block (13), and the external thread is located on the fixing notch (14). The first chromatography column (1) is provided with a first sealing ring (8) at the bottom of the outer surface, the second chromatography column (2) is provided with a second sealing ring (9) at the top of the outer surface, an annular groove (16) is provided at the bottom of the first sealing ring (8) and the top of the second sealing ring (9), the two annular grooves (16) are connected, a sealing ring (17) is provided at the bottom of the annular groove (16), a fixing notch (14) is provided at the bottom of the inner side of the second chromatography column (2), and an insertion block (13) is provided at the inner side of the top of the third chromatography column (3).

2. A chromatography column with a sealing assembly according to claim 1, characterized in that: A first extension plate (10) is provided at the bottom of the outer surface of the first sealing ring (8), and a second extension plate (11) is provided at the top of the outer surface of the second sealing ring (9); the first extension plate (10) and the second extension plate (11) are connected via a fixing pin (12).

3. A chromatography column with a sealing assembly according to claim 2, characterized in that: The first extension plate (10) and the second extension plate (11) are made of rigid material.

4. A chromatography column with a sealing assembly according to claim 1, characterized in that: A rubber stopper (5) is inserted into the top of the first chromatography column (1), a liquid inlet funnel (6) is arranged on one side of the top of the rubber stopper (5), an air pump (7) is arranged on the other side of the top of the rubber stopper (5), the bottom of the liquid inlet funnel (6) is located below the rubber stopper (5), and the air pipe of the air pump (7) is located below the rubber stopper (5).

5. The chromatography column with a sealing assembly according to claim 1, characterized in that: The bottom center of the third chromatography column (3) is a liquid outlet pipe (4).

Images