CN215116088U - Liquid chromatographic column joint - Google Patents
Liquid chromatographic column joint Download PDFInfo
- Publication number
- CN215116088U CN215116088U CN202121285293.4U CN202121285293U CN215116088U CN 215116088 U CN215116088 U CN 215116088U CN 202121285293 U CN202121285293 U CN 202121285293U CN 215116088 U CN215116088 U CN 215116088U
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- mounting ring
- extrusion
- extrusion pieces
- liquid chromatography
- chromatography column
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Abstract
The utility model relates to a joint, specifically relate to a liquid chromatography column connects. The utility model relates to a liquid chromatographic column joint, which comprises a plugging pipe, a fixing mechanism, a mounting ring and a taper nut; the fixing mechanism comprises a plurality of arc-shaped extrusion pieces, the extrusion pieces are arranged around the mounting ring and hinged with the mounting ring, the tops of the extrusion pieces are provided with ends which are narrow at the top and wide at the bottom, the outer sides of the upper ends of the extrusion pieces are provided with external threads, the plugging pipes are tightly sleeved on the outer sides of the mounting ring and the extrusion pieces, the inner cavity of the taper nut is provided with internal threads corresponding to the external threads, and the taper nut and the extrusion pieces are mutually matched and connected through the external threads and the internal threads; the mounting ring includes mounting ring body and pivot, and the mounting ring evenly is provided with a plurality of recesses, and the pivot sets firmly in the recess, and the extrusion piece is provided with rotatory hole, and the extrusion piece is articulated through pivot, rotatory hole with the mounting ring.
Description
Technical Field
The utility model relates to a joint, specifically relate to a liquid chromatography column connects.
Background
In the liquid chromatography experiment process, the assembling and disassembling of the chromatographic column joint is a high-frequency operation step. High pressure liquid chromatography is becoming increasingly popular today because of the tendency of the joints to fall off or loosen, resulting in damage to the column. Meanwhile, the pipe communicating with the liquid chromatography column is usually fixed directly by the pipe of the joint, which may have a poor fixing effect on the pipe.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a liquid chromatography column connects, makes it can make difficult coming off that liquid chromatography column connects, can fix the pipe simultaneously.
In order to solve the technical problem, the liquid chromatography column joint of the utility model comprises a plugging pipe, a fixing mechanism, a mounting ring and a taper nut; the fixing mechanism comprises a plurality of arc-shaped extrusion pieces, the extrusion pieces are arranged around the mounting ring and hinged with the mounting ring, the tops of the extrusion pieces are provided with ends which are narrow at the top and wide at the bottom, the outer sides of the upper ends of the extrusion pieces are provided with external threads, the plugging pipes are tightly sleeved on the outer sides of the mounting ring and the extrusion pieces, the inner cavity of the taper nut is provided with internal threads corresponding to the external threads, and the taper nut and the extrusion pieces are mutually matched and connected through the external threads and the internal threads; the mounting ring includes mounting ring body and pivot, and the mounting ring evenly is provided with a plurality of recesses, and the pivot sets firmly in the recess, and the extrusion piece is provided with rotatory hole, and the extrusion piece is articulated through pivot, rotatory hole with the mounting ring.
Preferably, the liquid chromatography column joint further comprises a sealing ring, the plugging pipe is arranged in a gap with the external thread, and the sealing ring tightly sleeved on the outer side of the plurality of extrusion pieces is arranged in the gap.
Preferably, a liquid chromatographic column connects still includes the stopper, and the stopper has all been set firmly in a plurality of extrusion piece outsides, and the shutoff intraductal side is provided with the spacing groove of one-to-one, and the stopper setting is at the spacing inslot that corresponds.
Preferably, the fixing mechanism is composed of two arc-shaped extrusion pieces, and the two extrusion pieces are symmetrically arranged around the mounting ring.
Preferably, the rotation hole is formed at the middle upper part of the pressing piece.
Preferably, the outer surface of the taper nut is full of sculptures.
Preferably, the blanking off pipe is made of PEEK material.
The beneficial effects of the utility model reside in that:
1. by arranging the plugging pipe, the fixing mechanism, the mounting ring and the taper nut, the liquid chromatography column joint is not easy to fall off, and the pipe can be fixed;
2. by arranging the sealing ring, the sealing property between the liquid chromatography column joint and the column can be enhanced;
3. the blocking pipe is further not easy to fall off by arranging the limiting block and the limiting groove;
4. the rotary hole is arranged at the middle upper part of the extrusion piece, so that the force applied by the extrusion piece to the plugging pipe can be increased by utilizing the lever principle, and the plugging pipe is further not easy to fall off;
5. through making the tapering nut surface be covered with the sculpture, can make things convenient for the dismouting of liquid chromatography column joint.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the mounting ring of the present invention.
The device comprises a sealing pipe 1, a pressing sheet 21, an external thread 22, a limiting block 23, a tip 24, a mounting ring 3, a mounting ring body 31, a rotating shaft 32, a taper nut 4 and a sealing ring 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In addition, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", and the like as used herein are defined based on the description of fig. 1, and are not intended to limit the above-mentioned orientations, but merely serve to facilitate understanding and description.
As shown in fig. 1 and fig. 2, the liquid chromatography column joint of the present invention comprises a plugging tube 1, a fixing mechanism, a mounting ring 3 and a taper nut 4; the fixing mechanism comprises a plurality of arc-shaped extrusion pieces 21, the extrusion pieces 21 are arranged around the mounting ring 3 and hinged with the mounting ring 3, the tops of the extrusion pieces 21 are provided with end heads 24 with narrow tops and wide bottoms, external threads 22 are arranged on the outer sides of the upper ends of the extrusion pieces 21, the plugging pipe 1 is tightly sleeved on the outer sides of the mounting ring 3 and the extrusion pieces 21, an inner cavity of the taper nut 4 is provided with internal threads corresponding to the external threads 22, and the taper nut 4 and the extrusion pieces 21 are mutually matched and connected through the external threads 22 and the internal threads; the mounting ring 3 comprises a mounting ring body 31 and a rotating shaft 32, the mounting ring 3 is evenly provided with a plurality of grooves, the rotating shaft 32 is fixedly arranged in the grooves, the extrusion sheet 21 is provided with a rotating hole, and the extrusion sheet 21 is hinged with the mounting ring 3 through the rotating shaft 32 and the rotating hole.
Concretely, a liquid chromatography column connects still includes sealing ring 5, and shutoff pipe 1 sets up with external screw thread 22 clearance and is provided with in this clearance closely to overlap establish with the sealing ring 5 in a plurality of extrusion pieces 21 outsides.
Concretely, a liquid chromatographic column connects still includes stopper 23, and the stopper 23 has all been set firmly in a plurality of extrusion pieces 21 outsides, and 1 inboard side of shutoff pipe is provided with the spacing groove of one-to-one, and stopper 23 sets up at the spacing inslot that corresponds.
Specifically, the fixing mechanism is composed of two arc-shaped extrusion pieces 21, and the two extrusion pieces 21 are symmetrically arranged around the mounting ring 3.
Specifically, the rotation hole is provided in the middle upper portion of the pressing piece 21.
Specifically, the outer surface of the taper nut 4 is full of sculptures.
In particular, the plugging tube 1 is made of PEEK material.
The working principle is as follows: firstly, the plugging tube 1 can extend into the inner cavity of the chromatographic column to plug the chromatographic column; then, the middle shaft of the liquid chromatographic column joint is vertically communicated, which is a channel for the hose to enter the inner cavity of the liquid chromatographic column, and the joint function is embodied; finally, after the pipe is inserted into the middle of the plurality of extrusion pieces 21, the taper nut 4 is appropriately screwed, the operation can inwards extrude the upper ends of the plurality of extrusion pieces 21 so as to fix the pipe, and meanwhile, the extrusion pieces 21 are hinged with the mounting ring 3, so that the lower ends of the extrusion pieces 21 exert outward force on the plugging pipe 1, the friction force between the plugging pipe 1 and the inner wall of the pipe column of the liquid chromatography column is increased, and the plugging pipe 1 is not easy to fall off.
Claims (7)
1. A liquid chromatography column joint, characterized in that: comprises a plugging pipe (1), a fixing mechanism, a mounting ring (3) and a taper nut (4);
the fixing mechanism comprises a plurality of arc-shaped extrusion pieces (21), the extrusion pieces (21) are arranged around the mounting ring (3) and hinged with the mounting ring (3), the tops of the extrusion pieces (21) are provided with ends (24) with narrow tops and wide bottoms, external threads (22) are arranged on the outer sides of the upper ends of the extrusion pieces (21), the plugging pipe (1) is tightly sleeved on the outer sides of the mounting ring (3) and the extrusion pieces (21), an inner cavity of the taper nut (4) is provided with internal threads corresponding to the external threads (22), and the taper nut (4) and the extrusion pieces (21) are mutually matched and connected through the external threads (22) and the internal threads;
the mounting ring (3) comprises a mounting ring body (31) and a rotating shaft (32), a plurality of grooves are uniformly formed in the mounting ring (3), the rotating shaft (32) is fixedly arranged in the grooves, the extrusion piece (21) is provided with a rotating hole, and the extrusion piece (21) is hinged to the mounting ring (3) through the rotating shaft (32) and the rotating hole.
2. A liquid chromatography column joint as claimed in claim 1, wherein: still include sealing ring (5), shutoff pipe (1) and external screw thread (22) clearance set up and be provided with in this clearance closely overlap establish with a plurality of extrusion piece (21) outside sealing ring (5).
3. A liquid chromatography column joint as claimed in claim 1, wherein: still include stopper (23), a plurality of extrusion piece (21) outside all sets firmly stopper (23), shutoff pipe (1) inboard is provided with the spacing groove of one-to-one, stopper (23) set up in the spacing groove that corresponds.
4. A liquid chromatography column joint as claimed in claim 1, wherein: the fixing mechanism is composed of two arc-shaped extrusion pieces (21), and the two extrusion pieces (21) are symmetrically arranged around the mounting ring (3).
5. A liquid chromatography column joint as claimed in claim 1, wherein: the rotary hole is arranged at the middle upper part of the extrusion sheet (21).
6. A liquid chromatography column joint as claimed in claim 1, wherein: the outer surface of the taper nut (4) is full of sculptures.
7. A liquid chromatography column joint as claimed in claim 1, wherein: the plugging tube (1) is made of PEEK material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121285293.4U CN215116088U (en) | 2021-06-09 | 2021-06-09 | Liquid chromatographic column joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121285293.4U CN215116088U (en) | 2021-06-09 | 2021-06-09 | Liquid chromatographic column joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215116088U true CN215116088U (en) | 2021-12-10 |
Family
ID=79305093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121285293.4U Active CN215116088U (en) | 2021-06-09 | 2021-06-09 | Liquid chromatographic column joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215116088U (en) |
-
2021
- 2021-06-09 CN CN202121285293.4U patent/CN215116088U/en active Active
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