CN221485322U - High-pressure joint of liquid chromatographic column - Google Patents

Abstract

The utility model relates to the technical field of liquid chromatographic columns and discloses a liquid chromatographic column high-pressure connector which comprises a column tube, wherein a thread groove for connection is formed in the outer wall surface of one end of the column tube, a connecting end head for installation is connected with one end of the column tube in a threaded manner, a sieve plate for improving the separation effect is installed on one side of the inner wall surface of the connecting end head, which corresponds to the column tube, in a clamping manner, an inserting groove is formed in the other end of the connecting end head, a sealing end for reinforcing sealing is installed in an inner plug-in of the inserting groove, a protecting sleeve for fixing is installed at one end of the connecting end head in a plugging manner, and the sealing end head is connected with the inner wall surface of one end of the protecting sleeve in a threaded manner.

Description

High-pressure joint of liquid chromatographic column

Technical Field

The utility model relates to the technical field of liquid chromatographic columns, in particular to a high-pressure connector of a liquid chromatographic column.

Background

Chromatography is also called chromatography, which is a high-performance physical separation technology, is usually used for analytical chemistry and is matched with a proper detection means, the principle is that separation is carried out by utilizing the difference of affinity capability such as partition coefficient, adsorption capability and the like of various substances to be separated in two phases, and a liquid chromatographic column is used as a place and a tool for chromatographic separation, so that the separation effect has a certain decisive effect.

In the use of liquid chromatography column, loading and unloading to the joint of chromatographic column use comparatively frequently, and the joint of current chromatographic column uses the screw thread to connect more, and the specification is various, and the joint and the pipeline of connecting in-process needs confirm post and instrument are matchd, still need fasten through different spanners, and dismouting inefficiency, and because high pressure liquid chromatography is popular day by day, take place when the condition that leads to damaging the chromatographic column because the joint does not screw in transportation and storage, consequently, need make the improvement to the leakproofness of chromatographic column joint junction.

In order to solve the problems, the tightness of the chromatographic column joint can be ensured while the rapid disassembly and the rapid assembly of the chromatographic column joint are convenient, so that the damage caused by leakage of the chromatographic column during transportation is avoided, and the economic loss is reduced.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a high-pressure connector of a liquid chromatographic column, which solves the problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a liquid chromatography column high pressure joint, includes the pillar, set up the screw thread groove that is used for connecting on the one end outer wall surface of pillar, the one end threaded connection of pillar has the connection end that is used for installing, the screen plate that is used for improving the separation effect is installed to one side joint that the inner wall surface of connection end corresponds the pillar, the insertion groove has been seted up to the other end of connection end, the inside plug-in components of insertion groove are equipped with the sealed end that is used for strengthening sealedly, the one end grafting of connection end is installed and is fixed the lag, threaded connection has sealed end on the one end inner wall surface of lag.

Preferably, a connecting groove is formed in the bottom of the inner wall surface of the insertion groove, a sealing ring is formed at the end part of the sealing end, and the connecting groove is matched with the sealing ring.

Preferably, a plurality of straight rods are fixedly arranged at the equidistant end of the protective sleeve, which is contacted with the connecting end, the end part of the straight rod is fixedly provided with a telescopic sleeve, and a limiting block is fixedly arranged in the telescopic sleeve through a spring.

Preferably, the position of the connecting end, corresponding to the straight rod, is provided with a limit groove corresponding to the straight rod, and a plurality of disassembling blocks for extrusion are slidably arranged on the position, corresponding to the limit groove, of the outer wall surface of the connecting end.

Preferably, a sealing head for sealing is fixedly arranged at a position of one end of the sealing end corresponding to the sealing end, and a nut for mounting is fixedly arranged at the other end of the sealing end.

Preferably, the whole screw cap is hexagonal, a through type fixing groove is formed in the screw cap, and the fixing groove is polygonal.

Compared with the prior art, the utility model provides a liquid chromatographic column high-pressure connector, which has the following beneficial effects:

1. This liquid chromatographic column high pressure connector through mutually supporting between spread groove and the sealing washer, can effectively strengthen the leakproofness between the structure when the installation, can effectively avoid leaking the emergence of accident.

2. This liquid chromatography column high-pressure joint, through the setting of straight-bar, flexible cover and stopper, when the installation, at first with sealed end grafting installation in the inside of inserting the groove, afterwards cup joint the lag in one side of connecting the end, a plurality of straight-bars with lag one end fixed mounting and a plurality of spacing grooves of seting up on the connecting end align, afterwards push the inside of spacing groove with the straight-bar, when the straight-bar gets into spacing inslot portion, straight-bar one side just can receive the extrusion and be pressed into the inside of flexible cover through spring fixed mounting's stopper, after the bottom of spacing groove is reached to the flexible cover, the stopper just can be ejecting the stopper because of the resilience of a plurality of springs, thereby the joint is installed in the bottom of spacing groove, can accomplish the installation of lag, and can also fix it, and through the setting of dismantling the piece, when dismantling the lag, also only need extrude a plurality of dismantlement pieces with the inside that the stopper is pushed back to the flexible cover, can take out the lag, installation and dismantlement are all convenient and fast more.

3. This liquid chromatography column high-pressure joint, through the setting of seal head, after installing a plurality of structures, only need with the whole one end of inserting the lag of seal head, later can accomplish fixedly with its threaded connection at the tip of lag through the nut, strengthened sealed effect through the seal head, it is more practical to through the setting of the fixed slot of seting up on the nut, can use multiple different instrument to install it, convenient and practical more.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the split structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the overall structure of the present utility model;

FIG. 3 is an enlarged schematic view of a portion of the utility model at A in FIG. 2;

FIG. 4 is an enlarged schematic view of a portion of the utility model at B in FIG. 2;

FIG. 5 is a schematic view of a seal head of the present utility model.

In the figure: 1. a column tube; 2. a connecting end; 3. a sieve plate; 4. an insertion groove; 5. sealing the end; 6. a protective sleeve; 7. sealing the end head; 8. a connecting groove; 9. a seal ring; 10. a straight rod; 11. a telescopic sleeve; 12. a limiting block; 13. a limit groove; 14. disassembling the block; 15. a sealing head; 16. a screw cap; 17. a fixing groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a high-pressure joint for liquid chromatography column comprises a column tube 1, wherein a thread groove for connection is formed in the outer wall surface of one end of the column tube 1, a connecting end head 2 for installation is connected with one end of the column tube 1 in a threaded manner, a sieve plate 3 for improving separation effect is installed on one side of the inner wall surface of the connecting end head 2, which corresponds to the column tube 1, in a clamping manner, an inserting groove 4 is formed in the other end of the connecting end head 2, a sealing end 5 for reinforcing sealing is installed in an inner plug of the inserting groove 4, a protecting sleeve 6 for fixing is installed at one end of the connecting end head 2 in a plugging manner, and a sealing end head 7 is connected with one end inner wall surface of the protecting sleeve 6 in a threaded manner.

Further, the connecting groove 8 has been seted up to the internal face bottom of inserting groove 4, and sealing washer 9 has been seted up to the tip of sealed end 5, and connecting groove 8 agrees with sealing washer 9 mutually, through mutually supporting between connecting groove 8 and the sealing washer 9, can effectively strengthen the leakproofness between the structure when the installation, can effectively avoid leaking the emergence of accident.

Further, a plurality of straight rods 10 are fixedly arranged at the equidistant end of the protective sleeve 6, which is contacted with the connecting end head 2, a telescopic sleeve 11 is fixedly arranged at the end part of the straight rods 10, and a limiting block 12 is fixedly arranged in the telescopic sleeve 11 through a spring.

Further, the position of the connecting end 2 corresponding to the straight rod 10 is provided with the corresponding limit groove 13, the position of the outer wall surface of the connecting end 2 corresponding to the limit groove 13 is provided with a plurality of disassembly blocks 14 for extrusion in a sliding manner, when the connecting end is installed, the sealing end 5 is inserted and installed in the insertion groove 4, the protecting sleeve 6 is sleeved on one side of the connecting end 2, a plurality of straight rods 10 fixedly installed at one end of the protecting sleeve 6 are aligned with a plurality of limit grooves 13 formed in the connecting end 2, the straight rods 10 are pushed into the limit groove 13, when the straight rods 10 enter the limit groove 13, the limit blocks 12 fixedly installed at one side of the straight rods 10 are pressed into the telescopic sleeve 11 through springs, after the telescopic sleeve 11 reaches the bottom of the limit groove 13, the limit blocks 12 are ejected out due to rebound of a plurality of springs, so that the clamping connection is installed at the bottom of the limit groove 13, the protecting sleeve 6 can be installed, the protecting sleeve 6 can be fixed, the protecting sleeve is required to be disassembled, when the protecting sleeve 6 is required to be disassembled, and the protecting sleeve 12 can be disassembled quickly and the protecting sleeve is required to be disassembled by the inner part of the protecting sleeve 12.

Further, a sealing head 15 for sealing is fixedly installed at one end of the sealing end 7 corresponding to the sealing end 5, and a nut 16 for installing is fixedly installed at the other end of the sealing end 7.

Further, the nut 16 wholly presents as the hexagon, the fixed slot 17 that runs through has been seted up to the inside of nut 16, fixed slot 17 also presents as the polygon, through the setting of sealing head 15, after installing a plurality of structures, only need with the whole one end of inserting lag 6 of sealed end 7, afterwards can accomplish fixedly through the tip of nut 16 its threaded connection at lag 6, sealed effect has been strengthened through sealing head 15, and it is more practical, and through the setting of fixed slot 17 of seting up on the nut 16, can use multiple different instrument to install it, more convenient and practical.

When in use, the screen plate 3 is clamped and installed on the inner wall surface of the connecting end 2, then the connecting end 2 is connected with the end part of the column tube 1 in a threaded way through the threaded groove formed in the inner wall surface of the connecting end 2, then the sealing end 5 is inserted into the interior of the insertion groove 4, the sealing performance between the structures can be effectively enhanced through the mutual matching between the connecting groove 8 and the sealing ring 9, the occurrence of leakage accidents can be effectively avoided, the protective sleeve 6 is sleeved on one side of the connecting end 2, a plurality of straight rods 10 fixedly installed at one end of the protective sleeve 6 are aligned with a plurality of limit grooves 13 formed in the connecting end 2, then the straight rods 10 are pushed into the limit grooves 13, when the straight rods 10 enter the limit grooves 13, the limit blocks 12 fixedly installed on one side of the straight rods 10 are pressed into the telescopic sleeve 11 through the extrusion, after the telescopic sleeve 11 reaches the bottom of the limiting groove 13, the limiting block 12 ejects the limiting block 12 due to the rebound of a plurality of springs, so that the limiting block 12 is clamped and installed at the bottom of the limiting groove 13, the installation of the protective sleeve 6 can be completed, and the protective sleeve 6 can be fixed, and through the arrangement of the dismounting blocks 14, when the protective sleeve 6 needs to be dismounted, the protective sleeve 6 can be pulled out by only extruding a plurality of dismounting blocks 14 to push the limiting block 12 back into the telescopic sleeve 11, the installation and the dismounting are more convenient and quicker, after the installation is completed, the sealing end head 7 is integrally inserted into one end of the protective sleeve 6, the end of the protective sleeve 6 can be fixed through the threaded connection of the sealing end head 16, the sealing effect is enhanced through the sealing end head 15, the protective sleeve is more practical, and through the arrangement of the fixing groove 17 arranged on the nut 16, the protective sleeve can be mounted by using a plurality of different tools, more convenient and practical, the utility model discloses a mutually supporting between the last structure can effectively strengthen the leakproofness between the different components when using, avoids leaking the emergence of accident, and installation and dismantlement are all convenient and fast more simultaneously, and is more practical.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a liquid chromatography column high pressure joint, includes pillar (1), its characterized in that: the utility model discloses a pipe column, including column (1) and connecting end, set up the screw thread groove that is used for carrying out the connection on the one end outer wall surface of column (1), the one end threaded connection of column (1) has connecting end (2) that are used for carrying out the installation, the screen plate (3) that are used for improving separation effect are installed to one side joint that the inner wall surface of connecting end (2) corresponds column (1), insert groove (4) have been seted up to the other end of connecting end (2), the inside plug-in components of insert groove (4) are equipped with sealed end (5) that are used for strengthening seal, lag (6) that fix are installed in the one end grafting of connecting end (2), threaded connection has sealed end (7) on the one end inner wall surface of lag (6).

2. A liquid chromatography column high pressure fitting according to claim 1, wherein: the connecting groove (8) is formed in the bottom of the inner wall surface of the insertion groove (4), the sealing ring (9) is formed at the end part of the sealing end (5), and the connecting groove (8) is matched with the sealing ring (9).

3. A liquid chromatography column high pressure fitting according to claim 1, wherein: a plurality of straight rods (10) are fixedly arranged at the equidistant end, contacting with the connecting end (2), of the protective sleeve (6), a telescopic sleeve (11) is fixedly arranged at the end part of the straight rods (10), and a limiting block (12) is fixedly arranged in the telescopic sleeve (11) through a spring.

4. A liquid chromatography column high pressure fitting according to claim 3, wherein: the inner part of the connecting end head (2) is provided with a limiting groove (13) corresponding to the straight rod (10), and a plurality of disassembling blocks (14) for extruding are slidably arranged at the outer wall surface of the connecting end head (2) corresponding to the limiting groove (13).

5. A liquid chromatography column high pressure fitting according to claim 1, wherein: a sealing head (15) for sealing is fixedly arranged at one end of the sealing end head (7) corresponding to the sealing end (5), and a nut (16) for mounting is fixedly arranged at the other end of the sealing end head (7).

6. The high pressure connector for liquid chromatography column of claim 5, wherein: the whole screw cap (16) presents a hexagon, a penetrating type fixing groove (17) is formed in the screw cap (16), and the fixing groove (17) presents a polygon.