CN211978791U - Protective column structure of chromatographic column of chromatographic analysis instrument - Google Patents

Abstract

The utility model discloses a protective column structure of chromatographic column of chromatographic analysis instrument, which adopts the block between the mounting bar and the groove, matches the elasticity of the spring, so that the block is blocked in the groove at the opposite side of the first spacing collar and the second spacing collar, and finally fixes the mounting bar through the screw connection between the bolt and the mounting screw hole, when needing to be disassembled, the bolt is disassembled and adjusts the first spacing collar and the second spacing collar, thus being convenient to adjust the protective column main body, separating the screw base at one end from the sample injector or the analytical column, directly taking down the sample injector or the analytical column, finally rotating out the screw base at another position, realizing the disassembly of the protective column main body, and the assembly is also the same, thus avoiding the rotary operation of the larger sample injector or the analytical column, facilitating the disassembly, providing a new idea for the assembly and disassembly of the protective column main body, the service life and the user experience of the device are improved.

Description

Protective column structure of chromatographic column of chromatographic analysis instrument

Technical Field

The utility model relates to a chromatographic analysis appearance's correlation field specifically is a guard column structure of chromatographic analysis instrument chromatographic column.

Background

The chromatographic column consists of column tube, pressing cap, clamping sleeve, sieve plate, joint, screw, etc. and plays the role of separation in chromatographic system. In the process of analyzing and detecting a sample by using a high performance liquid chromatography, the chromatographic column is polluted by the sample and a chromatographic system, so that the durability of the chromatographic column is poor, the service life of the chromatographic column is shortened, the pollution degree of the analytical column can be greatly reduced by using the protective column, and the service life of the analytical column is prolonged. The guard column is positioned between the sample injector and the analytical column and has two main functions: keep back the impurity in the insoluble particle and the absorption sample matrix, the guard post often need change it after using a period, the maximize of guard action performance, but when changing, often need rotatory injector or analytical column to dismantle the guard post, like this, the operation is more loaded down with trivial details, so, provide the guard post structure of a chromatographic analysis instrument chromatographic column, only need operate the guard post structure when dismantling can, it is more convenient, very big improvement user's experience.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a guard post structure of chromatography instrument chromatographic column 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: the utility model provides a guard post structure of chromatographic analysis instrument chromatographic column, including the guard post main part, the equal fixedly connected with screw thread seat in both ends of guard post main part, the both ends of guard post main part and the contact department of screw thread seat are equipped with the installation limiting plate, the internally mounted of guard post main part has the absorption box, the outside cover of guard post main part is equipped with first spacing collar and second spacing collar, the mounting groove has been seted up to one side of the outer wall of guard post main part, the top of mounting groove is equipped with the mounting bar, the equal fixedly connected with spring in both sides of the riser of mounting bar, the equal fixedly connected with fixture block in mounting bar side is kept away from to every spring, the draw-in groove has all been seted up to first spacing collar and second.

Preferably, the installation limiting plate is of an annular structure, the threaded seats are welded at the installation limiting plates at two ends of the guard post main body, the size diameters of the threaded seats are equal to the size diameter of the guard post main body, the threaded seats at two ends are respectively connected with the sample injector and the analysis post, and the two threaded seats are respectively inserted into the sample injector and the analysis post and are in threaded connection with the inner wall of the sample injector and the analysis post.

Preferably, the adsorption box is in a through hole structure.

Preferably, the mounting bar is of an inverted T-shaped structure, and a transverse plate at the bottom of the mounting bar is clamped with the mounting groove.

Preferably, the clamping block is of an L-shaped structure, the vertical block of the clamping block is clamped into the clamping groove, the vertical block of the clamping block is provided with an installation screw hole, and the inner thread of the vertical block is connected with a bolt.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a block between mounting bar and the draw-in groove, the elasticity of cooperation spring, make the fixture block be blocked in the draw-in groove of first spacing collar and second spacing collar opposite side, fix the mounting bar through the threaded connection between bolt and the installation screw at last, when needing to dismantle, dismantle the bolt and adjust first spacing collar and second spacing collar, be convenient for like this adjust the pillar main part, make the screw thread seat and the separation of injector or analysis post of one end, directly take off injector or analysis post, the screw thread seat of another department of rotation play again at last, realize the dismantlement of pillar main part, the installation is also so, just so avoid the rotatory operation to larger injector or analysis post, make the dismantlement more convenient, the installation and the dismantlement of pillar main part provide a new thinking, hoisting device's life and user experience.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the protection pillar of the present invention;

fig. 3 is the mounting structure diagram of the limiting clip strip of the present invention.

In the figure: 1. a guard post body; 2. a threaded seat; 3. a first spacing collar; 4. a second limit ring; 5. mounting grooves; 6. a card slot; 7. an adsorption box; 8. mounting a limiting plate; 9. mounting a bar; 10. a spring; 11. a clamping block; 12. and installing screw holes.

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 should be noted that the terms "vertical", "upper", "lower", "horizontal", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a guard column structure of chromatographic analysis instrument chromatographic column, including guard column main part 1, the equal fixedly connected with screw thread seat 2 in both ends of guard column main part 1, the both ends of guard column main part 1 and the contact department of screw thread seat 2 are equipped with installation limiting plate 8, the internally mounted of guard column main part 1 has adsorption box 7, the outside cover of guard column main part 1 is equipped with first spacing collar 3 and second spacing collar 4, mounting groove 5 has been seted up to one side of the outer wall of guard column main part 1, the top of mounting groove 5 is equipped with mounting bar 9, the equal fixedly connected with spring 10 in both sides of the riser of mounting bar 9, the equal fixedly connected with fixture block 11 in mounting bar 9 side is kept away from to every spring 10, draw-in groove 6 has all been seted up to first spacing collar 3 and the corresponding position of 4 opposite sides of.

Further, installation limiting plate 8 is the loop configuration, and screw thread seat 2 welds in installation limiting plate 8 department at pillar main part 1 both ends, and the chi footpath of screw thread seat 2 is equal with the chi footpath of pillar main part 1, and the screw thread seat at both ends is connected with sample injector and analysis post respectively, and two screw thread seats insert the inside of sample injector and analysis post respectively and rather than inner wall threaded connection.

Further, the adsorption box 7 is a through hole structure.

Further, the mounting bar 9 is of an inverted T-shaped structure, and a transverse plate at the bottom of the mounting bar is clamped with the mounting groove 5.

Furthermore, the fixture block 11 is of an L-shaped structure, a vertical block of the fixture block is clamped in the clamping groove 6, a mounting screw hole 12 is formed in the vertical block of the fixture block 11, and a bolt is connected to the inner thread of the mounting screw hole.

The working principle is as follows: when in use, the protective column main body 1 is connected between a sample injector and an analytical column through the threaded seats 2 at two ends, the first limiting ring 3 and the second limiting ring 4 are pushed to two ends of the protective column main body 1 and are contacted with the sample injector and the analytical column, the mounting bar 9 is clamped into the mounting groove 5, the clamping blocks 11 at two ends are clamped into the clamping grooves 6 corresponding to the first limiting ring 3 and the second limiting ring 4 by utilizing the extension and contraction of the springs 10 at two ends, finally, the bolt is mounted into the mounting screw hole 12 and is in threaded connection with the second limiting ring 4, the mounting bar 9 is fixedly mounted, so that the first limiting ring 3 and the second limiting ring 4 are limited at one side of the sample injector and the analytical column, when in need of disassembly, the bolt is unscrewed and the mounting bar 9 is taken down, the first limiting ring 3 or the second limiting ring 4 is moved to a position contacted with the other one, and the threaded seat 2 is rotated to be away from the sample injector or the analytical column, directly take off injector or analytical column, at last the screw thread seat 2 of another department of rotation again realizes the dismantlement of protection post main part 1.

The utility model adopts the block between the mounting bar 9 and the slot 6, and matches with the elasticity of the spring 10, so that the clamping block 11 is clamped in the clamping groove 6 at the opposite side of the first spacing ring 3 and the second spacing ring 4, finally the mounting bar 9 is fixed through the threaded connection between the bolt and the mounting screw hole 12, when the bolt needs to be disassembled, the bolt is disassembled and the first spacing ring 3 and the second spacing ring 4 are adjusted, thus, the protection column main body 1 is convenient to adjust, the threaded seat 2 at one end is separated from the sample injector or the analytical column, the sample injector or the analytical column is directly taken down, and finally the threaded seat 2 at the other position is rotated out, so that the protection column main body 1 is disassembled and assembled, just so avoid the rotatory operation to bigger size injector or analytical column for it is more convenient to dismantle, provides a new thinking for the installation and the dismantlement of guard column main part 1, promotes the life and the user experience of device.

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

Claims (5)

1. A protection column structure of chromatographic column of chromatographic analysis instrument is characterized in that: including fender post main part (1), the equal fixedly connected with screw thread seat (2) in both ends of fender post main part (1), the both ends of fender post main part (1) and the contact department of screw thread seat (2) are equipped with installation limiting plate (8), the internally mounted of fender post main part (1) has adsorption box (7), the outside cover of fender post main part (1) is equipped with first spacing collar (3) and second spacing collar (4), mounting groove (5) have been seted up to one side of the outer wall of fender post main part (1), the top of mounting groove (5) is equipped with mounting bar (9), the equal fixedly connected with spring (10) in both sides of the riser of mounting bar (9), the equal fixedly connected with fixture block (11) in mounting bar (9) side is kept away from in every spring (10), draw-in groove (6) have all been seted up to first spacing collar (3) and second spacing collar (4) opposite side and the corresponding position of mounting.

2. A protective column structure for a chromatography column of a chromatography apparatus according to claim 1, wherein: installation limiting plate (8) are the loop configuration, and screw thread seat (2) weld in installation limiting plate (8) department at guard post main part (1) both ends, and the chi footpath of screw thread seat (2) is equal with the chi footpath of guard post main part (1), and the screw thread seat at both ends is connected with injector and analysis post respectively, and two screw thread seats insert the inside of injector and analysis post respectively and rather than inner wall threaded connection.

3. A protective column structure for a chromatography column of a chromatography apparatus according to claim 1, wherein: the adsorption box (7) is of a through hole structure.

4. A protective column structure for a chromatography column of a chromatography apparatus according to claim 1, wherein: the mounting bar (9) is of an inverted T-shaped structure, and a transverse plate at the bottom of the mounting bar is clamped with the mounting groove (5).

5. A protective column structure for a chromatography column of a chromatography apparatus according to claim 1, wherein: the clamping block (11) is of an L-shaped structure, a vertical block of the clamping block is clamped into the clamping groove (6), a mounting screw hole (12) is formed in the vertical block of the clamping block (11), and a bolt is connected with the inner thread of the mounting screw hole.

Images