CN218865856U

CN218865856U - Liquid chromatographic column tube

Info

Publication number: CN218865856U
Application number: CN202223067797.6U
Authority: CN
Inventors: 禹飞乐; 农尧钧; 贺文君; 张旭
Original assignee: Guangzhou Xingpu Technology Co ltd
Current assignee: Guangzhou Xingpu Technology Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-04-14
Anticipated expiration: 2032-11-18

Abstract

The utility model relates to a liquid chromatography column technical field specifically is a liquid chromatography column pipe, including the column pipe, the mounting groove has all been seted up at the both ends of column pipe inner wall, all is connected with the double-deck filtering mechanism of detachable in two mounting grooves, and double-deck filtering mechanism includes the body, and the filter is installed to the position that just is located the outer end in the body, and the sieve is installed to the position that just is close to the inner in the body, and the outer wall of body and the position that is located the outer end are equipped with annular stopper, are equipped with the second sealing ring between annular stopper and the column pipe. According to the liquid chromatography column tube, the double-layer filtering mechanism is mounted on the column tube through the mounting groove, so that a liquid chromatography column adopting the column tube has a good filtering effect, and the double-layer filtering mechanism is easy to disassemble and assemble, so that a user can conveniently disassemble and clean the double-layer filtering mechanism; through first sealing ring, second sealing ring and third sealing ring, can ensure the leakproofness of column pipe, double-deck filter mechanism and pressure cap junction.

Description

Liquid chromatography column tube

Technical Field

The utility model relates to a liquid chromatographic column technical field specifically is a liquid chromatographic column tube.

Background

The liquid chromatographic column is a component for a liquid chromatographic analysis instrument, and consists of a column tube, a pressing cap, a clamping sleeve, a sieve plate, a joint, a screw and the like.

The utility model discloses a patent that publication number is CN211553876U discloses a liquid chromatography column, has solved the liquid chromatography column on the existing market and has just filtered impurity through a sieve, and the filter effect is relatively poor, and in addition, current liquid chromatography column is difficult for the installation and dismantlement to the sieve, is difficult for clearing up it, has caused certain troublesome problem for relevant personnel's work, and it includes the pillar pipe, the first spring of the equal fixedly connected with in top and the bottom of pillar pipe one side, the utility model discloses, through being provided with first sieve and second sieve etc. for this liquid chromatography column has better filter effect, through being provided with first spring and first cardboard etc. for the staff is comparatively easy installs the dismantlement to the first sieve and the second sieve of this liquid chromatography column, is convenient for clear up first sieve and second sieve, has made things convenient for relevant personnel's work to a certain extent.

Above-mentioned prior art is in specific use, through the first filter screen that sets up, the second filter screen, first sieve and second sieve, make liquid chromatography column have better edulcoration effect, but first sieve and second sieve all are located the column pipe, and still fix through spring and cardboard, just so cause the user to hardly dismantle first sieve and second sieve under the condition of instrument not, and can remain impurity and detect liquid in the inside recess that is used for installing spring and cardboard of column pipe, lead to the inside difficult sanitization of column pipe, consequently, there is the use defect above-mentioned prior art when using, in view of this, we provide a liquid chromatography column pipe.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid chromatography column pipe to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a liquid chromatography column tube comprises a column tube, wherein mounting grooves are formed in two ends of the inner wall of the column tube, two detachable double-layer filtering mechanisms are connected in the two mounting grooves respectively and are located at two ends of the column tube respectively, and the double-layer filtering mechanisms can be pulled out from the two mounting grooves, so that a user can conveniently disassemble and assemble the double-layer filtering mechanisms;

the double-layer filtering mechanism comprises a pipe body, a filtering plate is arranged in the pipe body and positioned at the outer end, a filtering plate is arranged in the pipe body and positioned close to the inner end, and a liquid chromatographic column adopting the column pipe can have a better filtering effect through the arranged filtering plate and the filtering plate, so that the impurity removing effect of the liquid chromatographic column is improved;

an annular limiting block is arranged on the outer wall of the pipe body and positioned at the outer end of the pipe body, and the annular limiting block is positioned outside the column pipe, so that a user can conveniently pull out the double-layer filtering mechanism from the mounting groove;

and a second sealing ring is arranged between the annular limiting block and the column tube, so that the sealing property of the joint of the double-layer filtering mechanism and the column tube is improved.

Preferably, be equipped with first sealing ring between the inner of body and the tip of mounting groove inner wall, work as when double-deck filter mechanism installs in the mounting groove, the inner of body closely laminates with one side of first sealing ring, one side that the body was kept away from to first sealing ring closely laminates with the tip of mounting groove inner wall, improves the leakproofness of body and mounting groove junction, avoids taking place the condition of weeping.

Preferably, the external diameter of body and the internal diameter looks adaptation of mounting groove, the external diameter of annular stopper and the external diameter looks adaptation of post pipe work as when double-deck filter mechanism installs in the mounting groove, the side of annular stopper closely laminates with the outside of second sealing ring, the second sealing ring is kept away from one side of annular stopper and is closely laminated with the tip of post pipe, can effectively ensure the leakproofness of double-deck filter mechanism and post union coupling through second sealing ring and first sealing ring.

Preferably, the inner wall of the pipe body and the position of the inner end of the pipe body are provided with annular stop blocks, and one side of the sieve plate, which is far away from the filter plate, is attached to the side surface of the annular stop blocks, so that the position of the sieve plate can be positioned;

the positioning pipe is arranged in the pipe body and between the filter plate and the sieve plate, the filter plate and the sieve plate are separated by a certain distance through the positioning pipe, the filtering treatment of the detection liquid is facilitated, and the positions of the filter plate and the sieve plate can be positioned;

the outer diameters of the filter plate, the sieve plate and the positioning pipe are the same, the outer walls of the filter plate, the sieve plate and the positioning pipe are tightly attached to the inner wall of the pipe body, and the situation that detection liquid flows through the pipe body without being filtered is avoided.

Preferably, still include two with the pressure cap of column casing looks adaptation, two the spread groove has all been seted up to the side that the pressure cap is relative, threaded connection is in the spread groove of two pressure caps respectively at the both ends of column casing, the dismouting of the pressure cap of being convenient for and column casing to the person of facilitating the use dismouting double-deck filter mechanism, and then the person of facilitating the use dismantles and washs filter and sieve.

Preferably, the tip of spread groove inner wall and the position that is located the outward flange have seted up the annular groove, install the third sealing ring in the annular groove, work as when pressing cap and pillar union coupling, one side that the pillar pipe was kept away from to the annular stopper is closely laminated with the side of third sealing ring, ensures to press the leakproofness of cap and pillar union coupling department, avoids taking place the condition of weeping.

Preferably, the buffer slot has been seted up at the middle part of spread groove inner wall tip, can prevent to detect that liquid from the direct filter that strikes after the connecting pipe input, reduce the impact force to the filter, two the side that the pressure cap carried on the back mutually all is equipped with the connecting pipe, connecting pipe and buffer slot intercommunication, two the equal threaded connection in outer end of connecting pipe has the end cap, when the chromatographic column that adopts this column pipe does not use, can use two end caps to seal charge-in pipeline and ejection of compact pipeline respectively, plays the guard action to the chromatographic column.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this liquid chromatography column pipe, double-deck filtering mechanism is installed through the mounting groove to the column pipe, can be so that the liquid chromatography column that adopts this column pipe has better filter effect to improve the edulcoration effect of liquid chromatography column, and the easy dismouting of double-deck filtering mechanism, and then convenient to use person dismantles and washs double-deck filtering mechanism.

2. Through the first sealing ring and the second sealing ring that set up, can ensure the leakproofness of double-deck filter mechanism and column jacket junction, can ensure the leakproofness of column jacket and pressure cap junction through the third sealing ring that sets up to ensure that the condition of weeping can not take place for the liquid chromatography column that adopts this column jacket.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the assembly structure of the column tube and the fittings of the present invention;

fig. 3 is a schematic view of an assembly structure of the column tube, the double-layer filtering mechanism, the first sealing ring and the second sealing ring according to the present invention;

fig. 4 is a schematic view of an assembly structure of the pressing cap, the plug and the third sealing ring according to the present invention;

fig. 5 is the schematic diagram of the internal assembly structure of the pipe body in the present invention.

In the figure: column tube 1, mounting groove 10, pressure cap 2, spread groove 20, annular groove 200, dashpot 21, connecting pipe 22, double-deck filter mechanism 3, body 30, annular dog 300, annular stopper 31, filter 32, sieve 33, registration arm 34, end cap 4, first sealing ring 5, second sealing ring 6, third sealing ring 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, 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 the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

a liquid chromatography column tube comprises a column tube 1, wherein mounting grooves 10 are formed in two ends of the inner wall of the column tube 1, two detachable double-layer filtering mechanisms 3 are connected in the two mounting grooves 10 respectively, the two double-layer filtering mechanisms 3 are located at two ends of the column tube 1 respectively, and the double-layer filtering mechanisms 3 can be pulled out from the two mounting grooves 10, so that a user can conveniently disassemble and assemble the double-layer filtering mechanisms 3;

the double-layer filtering mechanism 3 comprises a pipe body 30, a filtering plate 32 is arranged in the pipe body 30 and at the outer end, a sieve plate 33 is arranged in the pipe body 30 and at the position close to the inner end, and the liquid chromatographic column adopting the column pipe 1 can have a better filtering effect through the arranged filtering plate 32 and sieve plate 33, so that the impurity removing effect of the liquid chromatographic column is improved;

an annular limiting block 31 is arranged on the outer wall of the pipe body 30 and positioned at the outer end, and the annular limiting block 31 is positioned outside the column pipe 1, so that a user can conveniently pull out the double-layer filtering mechanism 3 from the mounting groove 10;

and a second sealing ring 6 is arranged between the annular limiting block 31 and the column tube 1, so that the sealing property of the joint of the double-layer filtering mechanism 3 and the column tube 1 is improved.

In this embodiment, be equipped with first sealing ring 5 between the tip of the inner of body 30 and mounting groove 10 inner wall, when double-deck filter mechanism 3 installed in mounting groove 10, the inner of body 30 closely laminates with one side of first sealing ring 5, and one side that body 30 was kept away from to first sealing ring 5 closely laminates with the tip of mounting groove 10 inner wall, improves the leakproofness of body 30 and mounting groove 10 junction, avoids taking place the condition of weeping.

Specifically, the external diameter of body 30 and the internal diameter looks adaptation of mounting groove 10, the external diameter of annular stopper 31 and the external diameter looks adaptation of post pipe 1, when double-deck filter mechanism 3 is installed in mounting groove 10, the side of annular stopper 31 closely laminates with the outside of second sealing ring 6, one side that annular stopper 31 was kept away from to second sealing ring 6 closely laminates with the tip of post pipe 1, can effectively ensure the leakproofness of double-deck filter mechanism 3 and the junction of post pipe 1 through second sealing ring 6 and first sealing ring 5.

Further, an annular stopper 300 is arranged on the inner wall of the tube body 30 and at the inner end, and one side of the sieve plate 33 far away from the filter plate 32 is attached to the side surface of the annular stopper 300, so that the sieve plate 33 can be positioned;

a positioning pipe 34 is arranged in the pipe body 30 and between the filter plate 32 and the sieve plate 33, the filter plate 32 and the sieve plate 33 are separated by a certain distance through the positioning pipe 34, the filtering treatment of the detected liquid is facilitated, and the positions of the filter plate 32 and the sieve plate 33 can be positioned;

the outer diameters of the filter plate 32, the sieve plate 33 and the positioning tube 34 are the same, the outer walls of the filter plate 32, the sieve plate 33 and the positioning tube 34 are tightly attached to the inner wall of the tube body 30, and the situation that detection liquid flows through the tube body 30 without being filtered is avoided.

Further, still include two with the pressure cap 2 of 1 looks adaptation of column tube, spread groove 20 has all been seted up to two sides that press cap 2 to be relative, the both ends of column tube 1 threaded connection respectively in two spread grooves 20 of pressing cap 2, be convenient for press the dismouting of cap 2 and column tube 1 to the double-deck filter mechanism 3 of convenient to use person's dismouting, and then convenient to use person dismantles washing filter 32 and sieve 33.

Further, the tip of spread groove 20 inner wall and the position that is located the outward flange have seted up annular groove 200, install third sealing ring 7 in the annular groove 200, when pressing cap 2 to be connected with post pipe 1, one side that post pipe 1 was kept away from to annular stopper 31 is closely laminated with the side of third sealing ring 7, ensures the leakproofness of pressing cap 2 and the 1 junction of post pipe, avoids taking place the condition of weeping.

Further, buffer slot 21 has been seted up at the middle part of the 20 inner wall tip of spread groove, can prevent to detect liquid and directly strike filter 32 from connecting pipe 22 input back, reduce the impact force to filter 32, two sides that press cap 2 to carry on the back mutually all are equipped with connecting pipe 22, connecting pipe 22 and buffer slot 21 intercommunication, the equal threaded connection in outer end of two connecting pipes 22 has end cap 4, when the chromatographic column that adopts this pillar pipe 1 does not use, can use two end caps 4 to seal charge-in pipeline and ejection of compact pipeline respectively, play the guard action to the chromatographic column.

When the liquid chromatography column tube is used, a user fills a certain matrix into the column tube 1, then the double-layer filtering mechanism 3 is installed in the installation groove 10, then the pressing cap 2 is installed at the end part of the column tube 1, then the user connects the two external pipelines for feeding and discharging with the two connecting pipes 22 respectively, after the detection liquid enters the chromatography column, impurities in the detection liquid are filtered under the action of the filter plate 32 and the sieve plate 33, and the impurity removal effect of the chromatography column is effectively improved; when needs wash double-deck filter mechanism 3, the user presses cap 2 dismantlements with two, extract two double-deck filter mechanism 3 again, then also take out two first sealing rings 5 and two second sealing rings 6, again with the filter 32, release in sieve 33 and positioning tube 34 follow body 30, afterwards, the user alright with to body 30, the filter 32, sieve 33, positioning tube 34, first sealing ring 5 and second sealing ring 6 and column pipe 1 wash, the easy dismouting of double-deck filter mechanism 3 in this column pipe 1 is washd, the person of facilitating the use uses.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A liquid chromatography column tube, includes column tube (1), its characterized in that: mounting groove (10), two have all been seted up at the both ends of pillar pipe (1) inner wall all be connected with double-deck filtering mechanism of detachable (3) in mounting groove (10), double-deck filtering mechanism (3) are including body (30), filter (32) are installed to the position that just is located the outer end in body (30), just be close to inner position in body (30) and install sieve (33), the outer wall of body (30) and the position that is located the outer end are equipped with annular stopper (31), be equipped with second sealing ring (6) between annular stopper (31) and pillar pipe (1).

2. The liquid chromatography column tube of claim 1, wherein: be equipped with first sealing ring (5) between the tip of the inner of body (30) and mounting groove (10) inner wall, work as when double-deck filter mechanism (3) is installed in mounting groove (10), the inner of body (30) is closely laminated with one side of first sealing ring (5), one side that body (30) were kept away from in first sealing ring (5) is closely laminated with the tip of mounting groove (10) inner wall.

3. The liquid chromatography column tube of claim 1, wherein: the external diameter of body (30) and the internal diameter looks adaptation of mounting groove (10), the external diameter of annular stopper (31) and the external diameter looks adaptation of column tube (1), work as when double-deck filtering mechanism (3) are installed in mounting groove (10), the side of annular stopper (31) closely laminates with the outside of second sealing ring (6), the tip that annular stopper (31) one side and column tube (1) were kept away from in second sealing ring (6) closely laminates.

4. The liquid chromatography column tube of claim 1, wherein: the inner wall of body (30) and the position that is located inner are equipped with annular dog (300), one side that filter (32) were kept away from in sieve (33) is laminated with the side of annular dog (300) mutually, the registration arm (34) is installed to the position that just is located between filter (32) and sieve (33) in body (30), the external diameter of filter (32), sieve (33) and registration arm (34) is the same, the outer wall of filter (32), sieve (33) and registration arm (34) all closely laminates with the inner wall of body (30).

5. The liquid chromatography column tube of claim 1, wherein: still include two with pressure cap (2) of column tube (1) looks adaptation, two spread groove (20) have all been seted up to the side that presses cap (2) relative, threaded connection is in two spread grooves (20) of pressing cap (2) respectively at the both ends of column tube (1).

6. The liquid chromatography column tube of claim 5, wherein: annular groove (200) have been seted up to the tip of spread groove (20) inner wall and the position that is located the outward flange, install third sealing ring (7) in annular groove (200), work as when pressing cap (2) to be connected with column tube (1), one side that column tube (1) was kept away from in annular stopper (31) is closely laminated with the side of third sealing ring (7).

7. The liquid chromatography column tube of claim 6, wherein: buffer slot (21), two have been seted up at the middle part of spread groove (20) inner wall tip the side of pressing cap (2) mutually the back of the body all is equipped with connecting pipe (22), connecting pipe (22) and buffer slot (21) intercommunication, two the equal threaded connection in outer end of connecting pipe (22) has end cap (4).