Sectional type chromatographic column for chemical analysis

Abstract

The utility model belongs to the technical field of chromatographic instruments, and particularly discloses a sectional type chromatographic column for chemical analysis, which comprises a base, a support rod is fixedly arranged on the upper end face of the base, adjusting clamps are sleeved on the support rod, one side of each adjusting clamp is integrally connected with a fixing clamp, a plurality of adjusting clamps are arranged on the support rod, and the adjusting clamps are fixed on the base. The chromatographic column body is fixed by the fixing clamps at one ends of the plurality of adjusting clamps, the chromatographic column body comprises a top-end chromatographic column unit, a bottom-end chromatographic column unit and a plurality of connecting chromatographic column units, arc-shaped grooves are symmetrically formed in the upper end surfaces of the connecting chromatographic column units, and arc-shaped convex blocks are arranged on the lower end surfaces of the connecting chromatographic column units; a first groove and a second groove are correspondingly formed in the upper end face and the lower end face of the connecting chromatographic column unit, limiting blocks of the filtering unit are fixed in the first groove and the second groove which are adjacent and are connected with the end face of the chromatographic column unit, the filtering unit comprises a fixing ring, and a filtering partition plate is fixed in the fixing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of chromatographic instruments, in particular to a segmented chromatographic column for chemical analysis. Background Art

[0002] Chromatographic separation is a separation instrument used to separate, adsorb and elute different substances in chemical analysis experiments. The chromatography column is the main body of gel chromatography technology. It is generally made of glass tubes or plexiglass tubes. It is a chromatography method that separates components in the sample mixture according to their different distribution coefficients in the stationary phase and the mobile phase.

[0003] There are many types of such chromatography columns on the market today, which can basically meet people's needs, but there are still certain shortcomings. The existing chromatography columns of this type are generally integrated structures and cannot be combined or disassembled. They are not only not flexible in use, but also inconvenient to clean. Utility Model Content

[0004] The purpose of the utility model is to provide a segmented chromatography column for chemical analysis to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a segmented chromatography column for chemical analysis, comprising a base, a support rod is fixedly provided on the upper end surface of the base, an adjusting clip is sleeved on the support rod, a fixing clip is integrally connected to one side of the adjusting clip, a plurality of adjusting clips are provided on the support rod, and the fixing clips at one end of the plurality of adjusting clips fix the chromatography column body, the chromatography column body comprises a top chromatography column unit, a bottom chromatography column unit and a plurality of connecting chromatography column units, the upper end surface of the connecting chromatography column unit is symmetrically provided with arc grooves, the cross-sectional shape of the arc grooves is trapezoidal, the lower end surface of the connecting chromatography column unit is provided with arc convex blocks, the arc convex blocks are arranged corresponding to the arc grooves, the upper end surface and the lower end surface of the connecting chromatography column unit are correspondingly provided with a first groove and a second groove, the first groove and the second groove of the end surfaces of two adjacent connecting chromatography column units fix the limiting block of the filter unit, the filter unit comprises a fixing ring, the outer peripheral wall of the fixing ring is fitted with the inner peripheral wall of the connecting chromatography column unit, and the filter partition is fixed in the fixing ring.

[0006] Preferably, the adjusting clamp comprises a fixing sleeve, which is arranged on the supporting rod, a pressure block is movably arranged in the fixing sleeve, a threaded bolt is arranged on the outer side of the pressure block, the end of the threaded bolt is rotatably connected with the pressure block, a threaded hole cooperating with the threaded bolt is arranged on the groove wall of the fixing sleeve, the threaded bolt is rotated, and the pressure block is pushed close to and pressed against the outer wall of the supporting rod by utilizing the cooperation between the threaded bolt and the thread. Thus, the adjusting clamp is pressed relative to the supporting rod to achieve a fixing effect.

[0007] Preferably, the fixing sleeve comprises a hinge seat, the hinge seat is fixedly connected to the side of the adjusting clamp, a group of arc-shaped clamping plates are symmetrically mounted on the hinge seat, and one end of the arc-shaped clamping plate away from the hinge seat is threadedly connected with a screw.

[0008] Preferably, a bucket-shaped liquid inlet is provided at the upper end of the top chromatography column unit, and an arc-shaped protrusion and a second groove which are the same as those of the lower end surface of the connecting chromatography column unit are provided on the lower end surface of the top chromatography column unit.

[0009] Preferably, a tubular liquid outlet nozzle is arranged below the bottom chromatography column unit, a liquid outlet valve is installed on the liquid outlet nozzle, and the upper end surface of the bottom chromatography column unit is provided with an arc groove and a first groove which are the same as the upper end surface of the connecting chromatography column unit.

[0010] Preferably, the adjustment clip is fixed at the connection between adjacent chromatography column units.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides corresponding arc grooves and arc protrusions, so that adjacent chromatography column units are tightly connected, which is convenient for disassembly of the chromatography column assembly and ensures the sealing of the connection; the utility model provides a top chromatography column unit, a bottom chromatography column unit and a connecting chromatography column unit, so that the chromatography column body can be disassembled in sections, which is convenient for cleaning the chromatography column later; the utility model provides a support rod and an adjusting clamp, and a fixing clamp is provided at one end of the adjusting clamp to fix the chromatography column body; the fixing clamp is provided at the connection of the chromatography column unit, so as to improve the tightness of the connection of the chromatography column unit and avoid the possibility of loosening or leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 Some parts of the utility model explode Figure 1 ;

[0014] Figure 3 Some parts of the utility model explode Figure 2 ;

[0015] Figure 4 It is a cross-sectional view of some parts of the utility model;

[0016] Figure 5 It is a cross-sectional view of the adjusting clamp and the fixing clamp of the utility model.

[0017] In the figure: 1. base; 2. support rod; 3. adjustment clamp; 301. fixing sleeve; 302. pressure block; 303. threaded bolt; 4. fixing clamp; 401. hinge seat; 402. arc-shaped clamp; 403. screw; 5. top chromatography column unit; 501. liquid inlet; 6. connecting chromatography column unit; 601. arc-shaped groove; 602. first groove; 603. arc-shaped protrusion; 604. second groove; 7. bottom chromatography column unit; 701. liquid outlet valve; 702. liquid outlet nozzle; 8. filter unit; 801. fixing ring; 802. limit block; 803. filter baffle. DETAILED DESCRIPTION

[0018] 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.

[0019] 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.

[0020] 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.

[0021] See also Figure 1-5The utility model provides a technical solution: a segmented chromatography column for chemical analysis, comprising a base 1, a support rod 2 is fixedly arranged on the upper end surface of the base 1, an adjusting clamp 3 is sleeved on the support rod 2, a fixing clamp 4 is integrally connected to one side of the adjusting clamp 3, a plurality of adjusting clamps 3 are arranged on the support rod 2, and the fixing clamps 4 at one end of the plurality of adjusting clamps 3 fix the chromatography column body, the chromatography column body comprises a top chromatography column unit 5, a bottom chromatography column unit and a plurality of connecting chromatography column units 6, an arc groove 601 is symmetrically arranged on the upper end surface of the connecting chromatography column unit 6, and the cross section of the arc groove 601 is The shape is trapezoidal, and the lower end surface of the connecting chromatography column unit 6 is provided with an arc-shaped protrusion 603, and the arc-shaped protrusion 603 is provided corresponding to the arc-shaped groove 601. The upper end surface and the lower end surface of the connecting chromatography column unit 6 are correspondingly provided with a first groove 602 and a second groove 604, and the first groove 602 and the second groove 604 of the end surfaces of two adjacent connecting chromatography column units 6 are fixed with a limiting block 802 of the filter unit 8. The filter unit 8 includes a fixing ring 801, and the outer peripheral wall of the fixing ring 801 is fitted with the inner peripheral wall of the connecting chromatography column unit 6, and the filter partition 803 is fixed in the fixing ring 801.

[0022] Furthermore, the adjusting clamp 3 includes a fixing sleeve 301, which is sleeved on the supporting rod 2. A pressing block 302 is movably arranged in the fixing sleeve 301. A threaded bolt 303 is arranged on the outer side of the pressing block 302. The end of the threaded bolt 303 is rotatably connected to the pressing block 302. A threaded hole cooperating with the threaded bolt 303 is provided on the groove wall of the fixing sleeve 301. The threaded bolt 303 is rotated, and the threaded bolt 303 is matched with the thread to push the pressing block 302 close to and press it against the outer wall of the supporting rod 2, so that the adjusting clamp 3 is pressed relative to the supporting rod 2 to achieve a fixing effect.

[0023] Furthermore, the fixing sleeve 301 includes a hinge seat 401, which is fixedly connected to the side of the adjusting clamp 3, and a group of arc-shaped clamping plates 402 are symmetrically installed on the hinge seat 401. The end of the arc-shaped clamping plate 402 away from the hinge seat 401 is threadedly connected with a screw 403.

[0024] Furthermore, a bucket-shaped liquid inlet 501 is disposed at the upper end of the top chromatography column unit 5 , and an arc-shaped protrusion 603 and a second groove 604 which are the same as those of the lower end of the connection chromatography column unit 6 are disposed at the lower end of the top chromatography column unit 5 .

[0025] Furthermore, a tubular liquid outlet nozzle 702 is arranged below the bottom chromatography column unit 7, and a liquid outlet valve 701 is installed on the liquid outlet nozzle 702. The upper end surface of the bottom chromatography column unit 7 is provided with an arc groove 601 and a first groove 602 which are the same as the upper end surface of the connection chromatography column unit 6.

[0026] Furthermore, the adjustment clamp 3 is fixed at the connection between adjacent chromatography column units.

[0027] Working principle: The utility model provides a segmented chromatography column for chemical analysis, including a base 1, a support rod 2 is fixedly arranged on the upper end surface of the base 1, an adjusting clamp 3 is sleeved on the support rod 2, a fixing clamp 4 is integrally connected to one side of the adjusting clamp 3, a plurality of adjusting clamps 3 are arranged on the support rod 2, and the fixing clamps 4 at one end of the plurality of adjusting clamps 3 fix the chromatography column body, the chromatography column body includes a top chromatography column unit 5, a bottom chromatography column unit and a plurality of connecting chromatography column units 6, and an arc-shaped The arc groove 601 has a trapezoidal cross-sectional shape, the lower end surface of the connection chromatography column unit 6 is provided with an arc convex block 603, the arc convex block 603 is provided corresponding to the arc groove 601, the upper end surface and the lower end surface of the connection chromatography column unit 6 are provided with a first groove 602 and a second groove 604 correspondingly, and the first groove 602 and the second groove 604 of the end surfaces of the two adjacent connection chromatography column units 6 are provided with a limit block 802 of the filter unit 8, and the filter unit 8 includes a fixing ring 801, and the outer peripheral wall of the fixing ring 801 is connected to the connection layer The inner wall of the chromatography column unit 6 is fitted, and the filter baffle 803 is fixed in the fixing ring 801; when in use, the number of connected chromatography column units 6 is selected according to the number of layers actually required, and then the chromatography column device is assembled according to the above method. When assembling, different adsorbents are laid on the filter baffle 803, and then the liquid to be chromatographed is added to the liquid inlet. The adsorbent in the chromatography column body adsorbs and purifies the liquid, and then the liquid outlet valve 701 is opened, and the purified liquid flows out from the liquid outlet nozzle 702. The utility model provides a corresponding arc groove 601 and an arc convex Block 603 makes the adjacent chromatography column units tightly connected, which is convenient for disassembly of the chromatography column assembly and ensures the sealing of the connection; the utility model arranges the top chromatography column unit 5, the bottom chromatography column unit and the connecting chromatography column unit, so that the chromatography column body can be disassembled in sections, which is convenient for the later cleaning of the chromatography column. The utility model arranges the support rod 2 and the adjustment clamp 3, and the fixing clamp 4 is arranged at one end of the adjustment clamp 3 to fix the chromatography column body. The fixing clamp 4 is arranged at the connection of the chromatography column unit, so as to improve the tightness of the connection of the chromatography column unit and avoid the possibility of loosening or leakage.

[0028] Although 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 segmented chromatography column for chemical analysis, characterized in that: The invention comprises a base (1), wherein a support rod (2) is fixedly arranged on the upper end surface of the base (1), an adjusting clamp (3) is sleeved on the support rod (2), a fixing clamp (4) is integrally connected to one side of the adjusting clamp (3), a plurality of adjusting clamps (3) are arranged on the support rod (2), and the fixing clamp (4) at one end of the plurality of adjusting clamps (3) fixes a chromatography column body, wherein the chromatography column body comprises a top chromatography column unit (5), a bottom chromatography column unit and a plurality of connecting chromatography column units (6), wherein an arc groove (601) is symmetrically arranged on the upper end surface of the connecting chromatography column unit (6), wherein the cross-sectional shape of the arc groove (601) is a trapezoid, and the connecting chromatography column unit (6) is a plurality of connecting chromatography column units (6). ) is provided with an arc-shaped protrusion (603) at the lower end surface, and the arc-shaped protrusion (603) is provided corresponding to the arc-shaped groove (601); the upper end surface and the lower end surface of the connecting chromatography column unit (6) are provided with a first groove (602) and a second groove (604) correspondingly; the first groove (602) and the second groove (604) of the end surfaces of two adjacent connecting chromatography column units (6) are provided with a limit block (802) of the filter unit (8); the filter unit (8) comprises a fixing ring (801); the outer peripheral wall of the fixing ring (801) is arranged to fit the inner peripheral wall of the connecting chromatography column unit (6); and the filter baffle (803) is fixed inside the fixing ring (801).

2. A segmented chromatography column for chemical analysis according to claim 1, characterized in that: The adjusting clamp (3) comprises a fixing sleeve (301), the fixing sleeve (301) being sleeved on the supporting rod (2), a pressing block (302) being movably arranged in the fixing sleeve (301), a threaded bolt (303) being arranged on the outer side of the pressing block (302), an end of the threaded bolt (303) being rotatably connected to the pressing block (302), and a threaded hole cooperating with the threaded bolt (303) being arranged on the groove wall of the fixing sleeve (301).

3. A segmented chromatography column for chemical analysis according to claim 2, characterized in that: The fixing sleeve (301) comprises a hinge seat (401), wherein the hinge seat (401) is fixedly connected to the side of the adjusting clamp (3), and a group of arc-shaped clamping plates (402) are symmetrically mounted on the hinge seat (401), and one end of the arc-shaped clamping plate (402) away from the hinge seat (401) is threadedly connected with a screw (403).

4. A segmented chromatography column for chemical analysis according to claim 1, characterized in that: The upper end of the top chromatography column unit (5) is provided with a bucket-shaped liquid inlet (501), and the lower end surface of the top chromatography column unit (5) is provided with an arc-shaped protrusion (603) and a second groove (604) which are the same as the lower end surface of the connection chromatography column unit (6).

5. A segmented chromatography column for chemical analysis according to claim 1, characterized in that: A tubular liquid outlet nozzle (702) is arranged below the bottom chromatography column unit (7), and a liquid outlet valve (701) is installed on the liquid outlet nozzle (702). The upper end surface of the bottom chromatography column unit (7) is provided with an arc groove (601) and a first groove (602) which are the same as the upper end surface of the connection chromatography column unit (6).

6. A segmented chromatography column for chemical analysis according to claim 1, characterized in that: The adjustment clip (3) is fixed at the connection between adjacent chromatography column units.

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