A light and compact support for chromatography columns

Abstract

The utility model relates to mechanical device technical field, and disclose a kind of light small chromatographic column support, including chromatographic column support frame structure, chromatographic column support frame structure includes chromatographic column support assembly and baffle support assembly, chromatographic column support assembly is equipped with baffle support assembly, support foot positioning hole being opened on chromatographic column support assembly, multiple groups chromatographic column fixing structure are set on baffle support assembly, chromatographic column is clamped on chromatographic column fixing structure, support baffle adjusting structure is set between chromatographic column support assembly and baffle support assembly, it is integrally formed with lightweight high-strength corrosion-resistant macromolecular material, the installation and disassembly of chromatographic column do not need any tool by elastic buckle design, can be completed by single hand pressing, the height of support baffle can be adjusted by side face pressing type unlocking mechanism, and can be firmly locked, flexibly adapt to chromatographic column of different specifications, and stacked structure makes multiple supports can be stably, neatly stored together like building blocks.

Description

Technical Field

[0001] This utility model relates to the field of mechanical device technology, specifically a lightweight and small chromatography column support. Background Technology

[0002] Column chromatography is a highly efficient and widely used separation and purification technique, particularly suitable for the preparative separation of large quantities of substances. It is widely and frequently used in fields such as biology, chemistry, chemical engineering, and medicine. The essence of column chromatography is to achieve separation by utilizing the differences in the distribution behavior of each component in a mixture between the stationary phase and the mobile phase. When the mobile phase carrying the sample flows through the stationary phase, different components will undergo repeated adsorption-desorption dynamic equilibrium between the two phases. Components with larger distribution coefficients have stronger interactions with the stationary phase and move slowly, while those with smaller distribution coefficients move quickly, thus gradually separating in the chromatography column. In routine separation and purification experiments, different stationary phases are selected for testing based on the properties of the sample. For the separation and purification of multi-component samples, different types of stationary phases are loaded into chromatography columns and then used in series.

[0003] Currently, the most common chromatography column holders on the market are vertical structures made of iron, using metal cross clamps or threaded rods for column fixing. These designs present several inconveniences during use, such as large size, heavy weight, and difficulty in handling and storage. Furthermore, strong acid and alkali solutions are frequently used as mobile phases in column chromatography, and leakage of these mobile phases onto the iron holders and metal cross clamps or threaded rods can cause corrosion, affecting the aesthetics and lifespan of the equipment. Additionally, column disassembly and assembly are inconvenient; larger columns cannot be disassembled by a single person, impacting work efficiency. Therefore, we have proposed a lightweight, small-sized chromatography column holder. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a lightweight and compact chromatography column support, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a lightweight and small chromatography column support, comprising a chromatography column support frame structure, the chromatography column support frame structure comprising a chromatography column support assembly and a partition support assembly, wherein the chromatography column support assembly is provided with a partition support assembly.

[0006] Support foot positioning holes are provided on the chromatography column support assembly, and the support foot positioning holes are located at the top of the chromatography column support assembly;

[0007] Multiple sets of chromatography column fixing structures are provided on the partition support assembly, and chromatography columns are snapped onto the chromatography column fixing structures.

[0008] The support diaphragm adjustment structure, located between the chromatography column support assembly and the diaphragm support assembly, is used to fix the position of the diaphragm support assembly.

[0009] Preferably, the chromatography column support assembly includes a support base, a first side plate, and a second side plate. The first side plate and the second side plate are fixedly connected to one side of the support base, and the first side plate and the second side plate are respectively close to the two sides of the support base.

[0010] Preferably, the chromatography column support assembly further includes fixed support feet. Four fixed support feet are fixedly connected to the side of the support base away from the first side plate. The four fixed support feet are located at the four corners of the support base. Two support foot positioning holes are opened on the side of the first side plate and the second side plate away from the support base. The distribution of the support foot positioning holes corresponds to the fixed support feet.

[0011] Preferably, the partition support assembly includes a first support partition, a second support partition, a third support partition, and a fourth support partition. The support base is connected to the first support partition, the second support partition, the third support partition, and the fourth support partition on the side opposite to the fixed support foot. The first support partition, the second support partition, the third support partition, and the fourth support partition are parallel to each other and are snapped between the first side plate and the second side plate.

[0012] Preferably, the chromatography column fixing structure includes chromatography column support grooves and chromatography column fixing buckles. The first support partition, the second support partition, the third support partition, and the fourth support partition each have multiple chromatography column support grooves equidistantly distributed along a straight line on the side facing away from the support base. The inner walls of both sides of the chromatography column support grooves are inclinedly connected with chromatography column fixing buckles. One end of the chromatography column fixing buckle is fixedly connected to the chromatography column support groove, and the other end of the chromatography column fixing buckle faces away from the support base and is inclined towards the interior of the chromatography column support groove.

[0013] Preferably, the chromatography column fixing structure further includes infusion tube fixing grooves. The first support partition, the second support partition, the third support partition and the fourth support partition are each provided with a plurality of infusion tube fixing grooves on the side away from the support base. The distribution position and number of the infusion tube fixing grooves correspond to the chromatography column support grooves, and the infusion tube fixing grooves are on one side of the chromatography column support grooves.

[0014] Preferably, the support partition adjustment structure includes a pressure rod, an adjustment protrusion, and a spring. The opposing sides of the first and second side plates are perforated with stepped holes evenly distributed along a straight line. The larger diameter ends of the stepped holes on the first and second side plates face each other. The stepped holes are opposite to the sides of the first, second, third, and fourth support partitions. One end of the pressure rod is fixedly connected to the adjustment protrusion. A pressure rod is inserted into each stepped hole, with the pressure rod inside the smaller diameter end of the stepped hole and the adjustment protrusion inside the larger diameter end. The side of the adjustment protrusion connected to the pressure rod is fixedly connected to a spring, and the other end of the spring is fixedly connected to the stepped surface of the stepped hole.

[0015] Preferably, the support partition adjustment structure further includes a second spring and a fixing protrusion. The first support partition, the second support partition, the third support partition and the fourth support partition are provided with installation expansion grooves on both sides opposite to the stepped hole. The inner plane of the installation expansion groove is fixedly connected to the second spring. The other end of the second spring is fixedly connected to the fixing protrusion. The fixing protrusion is inserted into the installation expansion groove. The other end of the fixing protrusion is inserted into the stepped hole and is in contact with the side of the adjustment protrusion away from the pressure rod.

[0016] Compared with the prior art, this utility model provides a lightweight and compact chromatography column support, which has the following advantages:

[0017] This lightweight, compact chromatography column holder is integrally molded from a lightweight, high-strength, corrosion-resistant polymer material. Its elastic snap-fit ​​design allows for tool-free installation and removal of the chromatography column, requiring only a single hand press, making operation extremely simple and significantly improving experimental efficiency. The height of the support partition can be quickly adjusted via a side-mounted push-to-unlock mechanism, and it can be securely locked, flexibly adapting to different column sizes. Furthermore, the stackable structure allows multiple holders to be stably and neatly stored together like building blocks, greatly saving valuable laboratory space. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is an exploded view of the structure of this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the support partition adjustment structure of this utility model;

[0021] Figure 4 for Figure 3 A magnified view of part A in the diagram.

[0022] In the diagram: 1. First support partition; 2. Second support partition; 3. Third support partition; 4. Fourth support partition; 5. First side plate; 6. Second side plate; 7. Support base; 8. Fixed support foot; 9. Support foot positioning hole; 10. Chromatography column support groove; 11. Chromatography column fixing buckle; 12. Infusion tube fixing groove; 13. Stepped hole; 14. Pressure rod; 15. Fixing protrusion; 16. Adjusting protrusion; 17. Spring 1; 18. Installation telescopic groove; 19. Spring 2. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 A lightweight, small chromatography column support includes a chromatography column support frame structure, which includes a chromatography column support assembly and a partition support assembly. The partition support assembly is provided inside the chromatography column support assembly.

[0025] Support foot positioning holes 9 are provided on the chromatography column support assembly, and the support foot positioning holes 9 are located at the top of the chromatography column support assembly;

[0026] Multiple sets of chromatography column fixing structures are installed on the diaphragm support assembly, and chromatography columns are snapped onto the chromatography column fixing structures;

[0027] The support diaphragm adjustment structure, located between the chromatography column support assembly and the diaphragm support assembly, is used to fix the position of the diaphragm support assembly.

[0028] Furthermore, the chromatography column support assembly includes a support base 7, a first side plate 5, and a second side plate 6. The first side plate 5 and the second side plate 6 are fixedly connected to one side of the support base 7. The first side plate 5 and the second side plate 6 are respectively close to the two sides of the support base 7. The support base 7 is used to support the first side plate 5 and the second side plate 6. The first side plate 5 and the second side plate 6 are used to support the partition support assembly.

[0029] Furthermore, the chromatography column support assembly also includes fixed support feet 8. Four fixed support feet 8 are fixedly connected to the side of the support base 7 facing away from the first side plate 5. The four fixed support feet 8 are located at the four corners of the support base 7. The first side plate 5 and the second side plate 6 each have two support foot positioning holes 9 on the side facing away from the support base 7. The distribution of the support foot positioning holes 9 corresponds to the fixed support feet 8. The fixed support feet 8 facilitate the placement of the support base 7. When the device is not in use, the fixed support feet 8 can be inserted into the support foot positioning holes 9 of another device for easy storage. Multiple fixed support feet 8 can be stacked. When stacked, the position of the fixed support feet 8 is the same as the position of the support foot positioning holes 9, which can ensure that the lightweight and small chromatography column supports are stacked neatly and will not move at will. The stacked lightweight and small chromatography column supports occupy little space and can be stored in a small cabinet when not in use, increasing space utilization.

[0030] Furthermore, the partition support assembly includes a first support partition 1, a second support partition 2, a third support partition 3, and a fourth support partition 4. The support base 7 is connected to the first support partition 1, the second support partition 2, the third support partition 3, and the fourth support partition 4 on the side opposite to the fixed support foot 8. The first support partition 1, the second support partition 2, the third support partition 3, and the fourth support partition 4 are parallel to each other and are snapped between the first side plate 5 and the second side plate 6. The first support partition 1, the second support partition 2, the third support partition 3, and the fourth support partition 4 are used to stably support the placement of the chromatography column. The lightweight and small chromatography column holder is made of polyetheretherketone (PEEK) material, which has the advantages of acid resistance, alkali resistance, and organic solvent corrosion resistance compared to the iron chromatography column holders currently used. Moreover, the density of PEEK material is much lower than that of iron.

[0031] Furthermore, the chromatography column fixing structure includes chromatography column support grooves 10 and chromatography column fixing buckles 11. Multiple chromatography column support grooves 10 are equidistantly distributed along a straight line on the side of the first support partition 1, the second support partition 2, the third support partition 3, and the fourth support partition 4 facing away from the support base 7. The inner walls of both sides of the chromatography column support grooves 10 are inclinedly connected to chromatography column fixing buckles 11. One end of each chromatography column fixing buckle 11 is fixedly connected to the chromatography column support groove 10. The other end of 1 is away from the support base 7 and inclined towards the inside of the column support groove 10. The column support groove 10 is used to snap the column into place. The column fixing buckle 11 is used to fix the column. The elastic force of the column fixing buckle 11 snaps the column into the column support groove 10. By pressing the column, the column can be squeezed into the column fixing buckle 11. The column is fixed by its own elastic force. No other operation is required. A single person can easily fix or remove the column.

[0032] Furthermore, the chromatography column fixing structure also includes infusion tube fixing grooves 12. Multiple infusion tube fixing grooves 12 are provided on the side of the first support partition 1, the second support partition 2, the third support partition 3 and the fourth support partition 4 away from the support base 7. The distribution position and number of infusion tube fixing grooves 12 correspond to the chromatography column support grooves 10. The infusion tube fixing grooves 12 are on one side of the chromatography column support grooves 10 and are used to clamp the infusion tube of the chromatography column.

[0033] Furthermore, the support partition adjustment structure includes a pressure rod 14, an adjusting protrusion 16, and a spring 17. The opposing sides of the first side plate 5 and the second side plate 6 are each perforated with stepped holes 13 evenly distributed along a straight line. The larger diameter ends of the stepped holes 13 on the first side plate 5 and the second side plate 6 are opposite each other. The stepped holes 13 are opposite to the sides of the first support partition 1, the second support partition 2, the third support partition 3, and the fourth support partition 4. One end of the pressure rod 14 is fixedly connected to the adjusting protrusion 16. Each step... A pressure rod 14 is inserted into each hole 13. The pressure rod 14 is inside the smaller end of the stepped hole 13. The adjusting protrusion 16 is inside the larger end of the stepped hole 13. A spring 17 is fixedly connected to the side of the adjusting protrusion 16 that connects to the pressure rod 14. The other end of the spring 17 is fixedly connected to the stepped surface of the stepped hole 13. The stepped hole 13 is used to install the pressure rod 14 and the adjusting protrusion 16. The elastic force of the spring 17 fixes the adjusting protrusion 16 in the stepped hole 13. When the pressure rod 14 is pressed, the spring 17 is stretched.

[0034] Furthermore, the support partition adjustment structure also includes a second spring 19 and a fixing protrusion 15. The first support partition 1, the second support partition 2, the third support partition 3, and the fourth support partition 4 all have mounting expansion grooves 18 on both sides opposite to the stepped hole 13. A second spring 19 is fixedly connected to the inner plane of each mounting expansion groove 18. A fixing protrusion 15 is fixedly connected to the other end of each spring 19. The fixing protrusion 15 is inserted into the mounting expansion groove 18, and the other end of the fixing protrusion 15 is inserted into the stepped hole 13 and fits against the side of the adjusting protrusion 16 facing away from the pressure rod 14. The mounting expansion groove 18 is used to install the second spring 19 and the fixing protrusion 15. The elastic force of spring 19 causes the fixing protrusion 15 to engage in the stepped hole 13. Pressing the pressure rod 14 causes the adjusting protrusion 16 to press the fixing protrusion 15 back into the installation telescopic groove 18. The positions of the first support partition 1, the second support partition 2, the third support partition 3, or the fourth support partition 4 are slid according to the specifications and dimensions of the chromatography column. When the first support partition 1, the second support partition 2, the third support partition 3, or the fourth support partition 4 slides to the required position, the elastic force of spring 19 causes the fixing protrusion 15 to be inserted into the corresponding stepped hole 13, and facilitates the disassembly and replacement of the first support partition 1, the second support partition 2, the third support partition 3, or the fourth support partition 4.

[0035] Structural Description:

[0036] First support partition 1: a long strip-shaped plate structure, horizontally snapped between the two side plates, used to stabilize and fix the chromatography column;

[0037] Second support partition 2: a long strip plate structure, arranged parallel to the first support partition 1, together providing multi-level support points for the chromatography column;

[0038] The third support partition 3 is a long strip-shaped plate structure that serves as part of the support system. Its position can be adjusted independently to adapt to different experimental needs.

[0039] Fourth support partition 4: a long strip-shaped plate structure, serving as the uppermost support unit, used to fix the top of the chromatography column or the connection of the series columns;

[0040] First side plate 5: An upright plate-like structure, serving as one of the main side walls of the support, with stepped holes 13 on the inner side for guiding the support partition and installing the adjustment mechanism;

[0041] Second side plate 6: An upright plate-like structure, parallel and opposite to the first side plate 5, together forming the sliding track and main load-bearing frame that support the partition.

[0042] Support base 7: Flat plate structure, serving as the base of the entire bracket, used to connect and fix the two side plates to ensure structural stability;

[0043] Fixed support feet 8: columnar structure, four in total distributed at the four corners of the base, used to support the entire device, and can be inserted into the positioning holes 9 of another bracket when stored;

[0044] Support foot positioning hole 9: A round hole structure, opened at the top of the side plate, used to cooperate with the support foot 8 of another bracket when stored to achieve stable stacking;

[0045] Chromatography column support groove 10: a semi-circular groove, formed on the upper surface of the support partition, used to support and position the chromatography column body;

[0046] Chromatography column fixing buckle 11: elastic tongue-shaped structure, inclinedly connected to both sides of the support groove 10, automatically clamping the chromatography column using its own elasticity;

[0047] Infusion tube fixing groove 12: a small notch-shaped groove located on one side of the chromatography column support groove 10, used to insert and fix the infusion tube of the chromatography column;

[0048] Stepped hole 13: A stepped cylindrical hole that penetrates the side plate. The smaller end of the hole leads to the outside, while the larger end accommodates the adjustment mechanism and also serves as a positioning hole.

[0049] Pressure bar 14: A rod-shaped structure with one end exposed on the side plate. Pressing it can drive the adjustment protrusion 16 to move, which is the trigger component for height adjustment.

[0050] Fixed protrusion 15: a block structure that can partially extend out of the side of the support partition under the action of spring 19, and is used to engage with the stepped hole 13 to achieve the positioning of the support partition;

[0051] Adjusting protrusion 16: a block-shaped structure, fixed to the end of the pressure rod 14, moves with the pressure rod, and is used to press the fixed protrusion 15 to retract it and release the lock when pressed;

[0052] Spring 17: A helical spring connected between the adjusting protrusion 16 and the stepped surface of the stepped hole 13, providing a restoring force for the pressure rod 14 and the adjusting protrusion 16;

[0053] Installation expansion groove 18: An internal groove-shaped structure is opened on the side of the support partition to accommodate the fixing protrusion 15 and the spring 19, allowing the fixing protrusion to extend and retract.

[0054] Spring 2 19: A helical spring, fixed in the mounting telescopic groove 18, providing a continuous outward elastic force to the fixing protrusion 15, keeping it in a locked state.

[0055] Working principle: When the experimenter needs to adjust the height of the support partition according to the properties of the sample to be separated or the specifications of the chromatography column, the two sets of pressure rods 14 located on both sides of the first side plate 5 and the second side plate 6, corresponding to the target support partition such as the first support partition 1, the second support partition 2, the third support partition 3 or the fourth support partition 4, must be pressed simultaneously. Pressing the adjusting protrusion 16 at its end, which is transmitted through the pressure rod 14, causes the adjusting protrusion 16 to compress the spring 17 in the stepped hole 13 and move inward. The inward movement of the adjusting protrusion 16 will directly compress the spring 19 that was originally in the spring force. Using the fixing protrusion 15 that is locked in the stepped hole 13, the fixing protrusion 15 is forced to retract into the mounting expansion groove 18, overcoming the elastic force of the second spring 19. The experimenter then manually slides the support partition up and down to the desired height. Once the mounting expansion groove 18 on the side of the support partition aligns with the stepped hole 13 at the target height, the pressure rod 14 is released. Under the restoring force of the first spring 17, the adjusting protrusion 16 will return to its original position, relieving the pressure on the fixing protrusion 15. The second spring 19 in the mounting expansion groove 18 then pops the fixing protrusion 15 out, ensuring its front end is reliably secured. Insert the column into the aligned stepped hole 13, re-secure the mechanical lock, align the column body with the column support groove 10 on the target support partition, and press down. As the column enters the groove, it will compress the elastic column fixing buckles 11 on both sides, causing them to elastically deform outward. When the column is fully seated at the bottom of the support groove 10, the column fixing buckles 11 will tightly fasten the side of the column due to the elastic restoring force of the material itself. The infusion tube fixing groove 12, which is arranged adjacent to each column support groove 10, is used for neatly locking. The inlet or outlet lines of the chromatography column may use corrosive mobile phases such as strong acids, strong bases, or organic solvents during the entire chromatography separation process. This support is made entirely of polyetheretherketone (PEEK), which has excellent chemical corrosion resistance and can completely avoid the problems of rust affecting appearance and service life, as seen with traditional iron supports. During the storage phase after the experiment, the four fixed support feet 8 at the bottom of one support can be directly inserted into the corresponding support foot positioning holes 9 on the first side plate 5 and the second side plate 6 at the top of another support, and multiple supports can be stacked vertically.

[0056] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight, compact chromatography column support, characterized in that, The system includes a chromatography column support structure, which comprises a chromatography column support assembly and a diaphragm support assembly, with the diaphragm support assembly located within the chromatography column support assembly. A support foot positioning hole (9) is provided on the chromatography column support assembly, and the support foot positioning hole (9) is located at the top of the chromatography column support assembly; Multiple sets of chromatography column fixing structures are provided on the partition support assembly, and chromatography columns are snapped onto the chromatography column fixing structures. The support diaphragm adjustment structure, located between the chromatography column support assembly and the diaphragm support assembly, is used to fix the position of the diaphragm support assembly.

2. The lightweight miniature chromatography column support according to claim 1, characterized in that, The chromatography column support assembly includes a support base (7), a first side plate (5), and a second side plate (6). The first side plate (5) and the second side plate (6) are fixedly connected to one side of the support base (7). The first side plate (5) and the second side plate (6) are respectively close to the two sides of the support base (7).

3. A lightweight, miniature chromatography column support according to claim 2, characterized in that, The chromatography column support assembly also includes fixed support feet (8). Four fixed support feet (8) are fixedly connected to the side of the support base (7) away from the first side plate (5). The four fixed support feet (8) are located at the four corners of the support base (7). Two support foot positioning holes (9) are opened on the side of the first side plate (5) and the second side plate (6) away from the support base (7). The distribution position of the support foot positioning holes (9) corresponds to the fixed support feet (8).

4. A lightweight miniature chromatography column support according to claim 3, characterized in that, The partition support assembly includes a first support partition (1), a second support partition (2), a third support partition (3), and a fourth support partition (4). The support base (7) is connected to the first support partition (1), the second support partition (2), the third support partition (3), and the fourth support partition (4) on the side away from the fixed support foot (8). The first support partition (1), the second support partition (2), the third support partition (3), and the fourth support partition (4) are parallel and are snapped between the first side plate (5) and the second side plate (6).

5. A lightweight miniature chromatography column support according to claim 4, characterized in that, The chromatography column fixing structure includes a chromatography column support groove (10) and a chromatography column fixing buckle (11). The first support partition (1), the second support partition (2), the third support partition (3) and the fourth support partition (4) are all provided with multiple chromatography column support grooves (10) distributed equidistantly along a straight line on the side away from the support base (7). The inner walls of both sides of the chromatography column support groove (10) are inclinedly connected with the chromatography column fixing buckle (11). One end of the chromatography column fixing buckle (11) is fixedly connected to the chromatography column support groove (10), and the other end of the chromatography column fixing buckle (11) is away from the support base (7) and inclined towards the interior of the chromatography column support groove (10).

6. A lightweight miniature chromatography column support according to claim 5, characterized in that, The chromatography column fixing structure also includes infusion tube fixing grooves (12). The first support partition (1), the second support partition (2), the third support partition (3) and the fourth support partition (4) are all provided with multiple infusion tube fixing grooves (12) on the side away from the support base (7). The distribution position and number of the infusion tube fixing grooves (12) correspond to the chromatography column support groove (10). The infusion tube fixing grooves (12) are on one side of the chromatography column support groove (10).

7. A lightweight miniature chromatography column support according to claim 4, characterized in that, The support partition adjustment structure includes a pressure rod (14), an adjustment protrusion (16), and a spring (17). The first side plate (5) and the second side plate (6) each have a stepped hole (13) evenly distributed along a straight line on their opposite sides. The larger diameter ends of the stepped holes (13) on the first side plate (5) and the second side plate (6) are opposite each other. The stepped holes (13) are aligned with the first support partition (1), the second support partition (2), the third support partition (3), and the fourth support partition. (4) On opposite sides, one end of the pressure rod (14) is fixedly connected to an adjusting protrusion (16). Each stepped hole (13) is inserted with a pressure rod (14). The pressure rod (14) is in the end of the stepped hole (13) with a smaller diameter. The adjusting protrusion (16) is in the end of the stepped hole (13) with a larger diameter. The side of the adjusting protrusion (16) connected to the pressure rod (14) is fixedly connected to a spring (17). The other end of the spring (17) is fixedly connected to the stepped surface of the stepped hole (13).

8. A lightweight miniature chromatography column support according to claim 7, characterized in that, The support partition adjustment structure also includes a second spring (19) and a fixed protrusion (15). The first support partition (1), the second support partition (2), the third support partition (3) and the fourth support partition (4) are provided with installation expansion grooves (18) on both sides opposite to the stepped hole (13). The inner plane of the installation expansion groove (18) is fixedly connected to the second spring (19). The other end of the second spring (19) is fixedly connected to the fixed protrusion (15). The fixed protrusion (15) is inserted into the installation expansion groove (18). The other end of the fixed protrusion (15) is inserted into the stepped hole (13) and is in contact with the side of the adjustment protrusion (16) away from the pressure rod (14).

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