Adjustable chromatographic column convenient to clean

Abstract

The utility model discloses an adjustable chromatographic column convenient to clean, and belongs to the technical field of chromatographic columns. Comprising a chromatographic column and a cap, the cap is of a penetrating cavity structure, the end of the chromatographic column is located in the cavity structure, a limiting groove is formed in the chromatographic column, a guide groove is formed in the cap, a limiting block is arranged in the guide groove in a sliding mode, a first spring is arranged between the limiting block and the guide groove, and the limiting block and the limiting groove are connected in an inserted mode. And a telescopic structure is arranged on the cap and enables the limiting block and the limiting groove to be separated from insertion. The telescopic structure is pulled to drive the limiting block to slide in the guide groove, the limiting block compresses the first spring in the sliding process, then the cap is connected to the chromatographic column in a sleeving mode, and when the limiting block slides to one side of the limiting groove, the first spring is reset to push the limiting block to move towards the limiting groove through the anti-loosening telescopic structure at the moment; and the limiting block is inserted into the limiting groove to complete the installation of the cap and the chromatographic column.

Description

Technical Field

[0001] This utility model relates to an adjustable chromatographic column that is easy to clean, and belongs to the field of chromatographic column technology. Background Technology

[0002] Chromatographic columns are crucial components in chromatographic analysis and are widely used in chemistry, biology, pharmaceuticals, and other fields. Over long-term use, impurities and sample residues gradually accumulate inside the column, necessitating cleaning. However, the disassembly and installation of existing columns are cumbersome, preventing timely cleaning and reuse, which may affect the efficiency of subsequent experiments. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an adjustable chromatographic column that is easy to clean. This solves the problem that the existing chromatographic columns are cumbersome to disassemble and install, which makes it impossible to clean the chromatographic column in a timely manner and put it back into use, which may affect the efficiency of subsequent experiments.

[0004] The technical problem to be solved by this utility model is achieved by the following technical solution: an adjustable chromatographic column that is easy to clean, including a chromatographic column and a cap, the cap being a through-hole cavity structure, the end of the chromatographic column being located inside the cavity structure, a limiting groove being provided on the chromatographic column, a guide groove being provided on the cap, a limiting block being slidably provided inside the guide groove, a first spring being provided between the limiting block and the guide groove, the limiting block and the limiting groove being inserted together, and a telescopic structure being provided on the cap, the telescopic structure causing the limiting block and the limiting groove to disengage from the insertion.

[0005] By adopting the above technical solution, during installation, the telescopic structure is first pulled to slide the limiting block within the guide groove. During the sliding process, the limiting block compresses the first spring. Then, the cap is fitted onto the chromatographic column. When the limiting block slides to one side of the limiting groove, the anti-loosening telescopic structure is used. At this time, the first spring resets and pushes the limiting block towards the limiting groove, allowing the limiting block to be inserted into the limiting groove, thus completing the installation of the cap and the chromatographic column. By using the telescopic structure to limit the positioning of the limiting block and the limiting groove, the installation and removal of the chromatographic column and the cap can be quickly realized without complicated steps and tools. This improves the cleaning efficiency of the chromatographic column, avoids affecting subsequent experiments, and thus improves the overall experimental progress.

[0006] This utility model is further configured such that: the telescopic structure includes a positioning groove formed on the limiting block, a positioning plate slidably disposed inside the positioning groove, a telescopic plate fixedly disposed on the positioning plate, the extension path of the telescopic plate passing through the guide groove and slidably disposed with the cap, and a storage component disposed on the cap for storing the telescopic plate. The storage component includes a storage structure and a stop structure. The storage structure includes a storage groove formed on the cap, a storage plate disposed inside the storage groove, the storage plate fixedly disposed on the telescopic plate, and a stop structure disposed inside the storage groove for stopping the storage plate.

[0007] By employing the above technology, pulling the storage plate moves the telescopic plate away from the chromatographic column, causing it to move the positioning plate, which in turn moves the limiting block. Pushing the storage plate moves the telescopic plate towards the chromatographic column, causing it to move the positioning plate in the positioning groove, and then causing the telescopic plate to retract into the positioning groove. At the same time, the storage plate moves into the storage groove, making the telescopic plate and the cap flush. By making the telescopic plate and the cap flush, obstruction is avoided during the installation of the chromatographic column, facilitating the operator's installation of the chromatographic column.

[0008] The present invention is further configured such that: the stop structure includes a sliding groove formed on the cap and communicating with the storage groove, a sliding plate is slidably arranged inside the sliding groove, a push plate is fixedly arranged on the sliding plate, a second spring is arranged between the sliding plate and the sliding groove, a stop plate is fixedly arranged on the sliding plate, the stop plate extends into the storage groove and closes the storage groove, and the stop plate abuts against the end of the storage plate away from the telescopic plate.

[0009] By adopting the above technical solution, the sliding plate is moved inside the sliding groove by pushing the push plate. During the movement, the sliding plate compresses the second spring and simultaneously moves the stop plate away from the receiving groove, thus canceling the contact limit of the receiving plate. If the receiving plate needs to be stored, first move the stop plate away from the receiving groove, and then move the receiving plate into the receiving groove through the above process. Then, by releasing the push plate, the second spring resets and pushes the sliding plate to move. The sliding plate then moves the stop plate towards the receiving groove, thereby closing the receiving groove and storing the receiving plate. This prevents the telescopic plate from shifting during device operation, improves the stability of the device, and ensures the normal operation of the chromatographic column.

[0010] The present invention is further configured such that: a guide groove is provided on the chromatographic column, and a guide strip is fixedly provided on the cap, the guide strip being slidably disposed inside the guide groove.

[0011] By adopting the above technical solution, when the cap is installed, the guide strip moves synchronously with the cap. By sliding inside the guide groove, the guide strip guides and limits the cap, preventing the cap from rotating during installation and further improving installation efficiency.

[0012] The present invention is further configured such that: a sealing groove is provided on the chromatographic column, and a sealing gasket is provided on the cap, the sealing gasket abutting against the sealing groove.

[0013] By adopting the above technical solution, the combination of sealing gasket and sealing groove prevents gas or liquid leakage during the experiment, thereby further improving the stability of the device.

[0014] The present invention is further configured such that a filter plate is provided inside the chromatographic column.

[0015] By adopting the above technical solution, impurities are filtered through a filter plate to achieve a good filtration effect.

[0016] The present invention is further provided with an anti-slip sleeve on the outer surface of the chromatographic column.

[0017] By adopting the above technical solution, the anti-slip sleeve can increase the friction between the hand and the chromatographic column, preventing the chromatographic column from falling due to slipping during operation.

[0018] The beneficial effects of this utility model are as follows: During installation, the limiting block is first slid in the guide groove by pulling the telescopic structure. During the sliding process, the limiting block compresses the first spring. Then, the cap is fitted onto the chromatographic column. When the limiting block slides to one side of the limiting groove, the first spring is reset by the anti-loosening telescopic structure, pushing the limiting block towards the limiting groove so that the limiting block is inserted into the limiting groove, completing the installation of the cap and the chromatographic column. By using the telescopic structure to limit the limiting block and the limiting groove, the installation and removal of the chromatographic column and the cap can be quickly realized without complicated steps and tools. This improves the cleaning efficiency of the chromatographic column, avoids affecting subsequent experiments, and thus improves the overall experimental progress. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a three-dimensional schematic diagram of the telescopic structure of this utility model;

[0023] Figure 5 This is a partially enlarged schematic diagram of the chromatographic column of this utility model;

[0024] Figure 6 This is a partially enlarged schematic diagram of the telescopic structure of this utility model.

[0025] In the diagram: 1. Chromatographic column; 2. Cap; 3. Limiting block; 4. First spring; 8. Filter plate; 9. Anti-slip sleeve; 101. Limiting groove; 102. Guide groove; 103. Sealing groove; 201. Cavity structure; 202. Guide groove; 203. Guide strip; 204. Sealing gasket; 501. Positioning groove; 502. Positioning plate; 503. Telescopic plate; 601. Storage groove; 602. Storage plate; 701. Sliding groove; 702. Sliding plate; 703. Push plate; 704. Second spring; 705. Stop plate. Detailed Implementation

[0026] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this utility model, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0027] like Figures 1 to 3 As shown, an adjustable chromatographic column that is easy to clean includes a chromatographic column 1 and caps 2. Two caps 2 are provided, one at each end of the chromatographic column 1. The caps 2 are through-hole structures 201. The ends of the chromatographic column 1 are located inside the cavity structure 201. A limiting groove 101 is provided on the chromatographic column 1. A guide groove 202 communicating with the cavity structure 201 is provided on the caps 2. The guide groove 202 extends radially along the caps 2. A limiting block 3 is slidably provided inside the guide groove 202. The limiting block 3 reciprocates along the opening direction of the guide groove 202. A first spring 4 is provided on the end wall of the limiting block 3 and the guide groove 202 away from the cavity structure 201. The elastic force direction of the first spring 4 is the same as the sliding direction of the limiting block 3. The limiting block 3 and the limiting groove 101 are inserted together. A telescopic structure is provided on the caps 2. The telescopic structure disengages the limiting block 3 and the limiting groove 101.

[0028] like Figure 4As shown, the telescopic structure includes a positioning groove 501 formed on the limiting block 3. The positioning groove 501 is formed on the side of the limiting block 3 away from the limiting groove 101. A positioning plate 502 is slidably arranged inside the positioning groove 501. The positioning plate 502 reciprocates along the opening direction of the positioning groove 501. A telescopic plate 503 is fixedly arranged on the positioning plate 502. The extension path of the telescopic plate 503 passes through the guide groove 202 and is slidably arranged with the cap 2. One end of the telescopic plate 503 away from the positioning plate 502 extends to the outside of the cap 2. A storage component is provided on the cap 2 for storing the telescopic plate 503. The storage component includes a storage structure and a stop structure. The storage structure includes a storage groove 601 formed on the cap 2. The storage groove 601 has the outer surface of the cap 2. A storage plate 602 is provided inside the storage groove 601. The storage plate 602 is fixedly set on the telescopic plate 503 and extends to one end of the outer side of the cap 2. The stop structure is set inside the storage groove 601 and is used to stop the storage plate 602.

[0029] like Figure 3 As shown, the stopping structure includes a sliding groove 701 opened on the cap 2 and communicating with the storage groove 601. The opening direction of the sliding groove 701 is axial. A sliding plate 702 is slidably arranged inside the sliding groove 701. The sliding plate 702 reciprocates along the opening direction of the sliding groove 701. A push plate 703 is fixedly arranged on the sliding plate 702. A second spring 704 is arranged between the sliding plate 702 and the sliding groove 701. The elastic force direction of the second spring 704 is the same as the sliding direction of the sliding plate 702. A stop plate 705 is fixedly arranged on the side of the sliding plate 702 away from the second spring 704. The stop plate 705 extends into the storage groove 601 and closes the storage groove 601. The stop plate 705 abuts against the end of the storage plate 602 away from the telescopic plate 503.

[0030] like Figure 5 As shown, a guide groove 102 is provided on the chromatographic column 1, and a guide strip 203 is fixedly provided on the cap 2. The guide strip 203 is slidably disposed inside the guide groove 102.

[0031] like Figure 2 and Figure 5 As shown, a sealing groove 103 is provided on the chromatographic column 1, and a sealing gasket 204 is provided on the cap 2, with the sealing gasket 204 abutting against the sealing groove 103.

[0032] like Figure 2 As shown, a filter plate 8 is provided inside the chromatographic column 1. The filter plate 8 is detachably fixed to the chromatographic column 1. The detachable fixed connection includes, but is not limited to, threaded connection and snap-fit ​​connection. The connection is made by the internal thread provided on the inner end of the chromatographic column 1 and the external thread on the outer side of the filter plate 8. The filter plate 8 is limited by the slots provided in the chromatographic column 1 and the protrusions on the outer surface of the filter plate 8.

[0033] like Figure 1 As shown, the outer surface of the chromatographic column 1 is provided with an anti-slip sleeve 9.

[0034] During installation, the telescopic structure is first pulled to slide the limiting block 3 within the guide groove 202. During this sliding process, the limiting block 3 compresses the first spring 4. Then, the cap 2 is fitted onto the chromatographic column 1. When the limiting block 3 slides to one side of the limiting groove 101, the anti-loosening telescopic structure is used to reset the first spring 4, pushing the limiting block 3 towards the limiting groove 101, thus inserting the limiting block 3 into the limiting groove 101 and completing the installation of the cap 2 and the chromatographic column 1. By using the telescopic structure to limit the limiting block 3 and the limiting groove 101, the installation and removal of the chromatographic column 1 and the cap 2 can be quickly achieved without complicated steps and tools. This improves the cleaning efficiency of the chromatographic column 1, avoids affecting subsequent experiments, and improves the overall experimental progress.

[0035] Pulling the storage plate 602 moves the telescopic plate 503 away from the chromatographic column 1, causing it to move the positioning plate 502. Then, the positioning plate 502 moves the limiting block 3. Pushing the storage plate 602 moves the telescopic plate 503 towards the chromatographic column 1, causing it to move the positioning plate 502 in the positioning groove 501. This causes the telescopic plate 503 to retract into the positioning groove 501, while simultaneously moving the storage plate 602 into the storage groove 601, making the telescopic plate 503 and the cap 2 flush. By making the telescopic plate 503 and the cap 2 flush, obstruction is avoided when installing the chromatographic column 1, making it easier for operators to install the chromatographic column 1.

[0036] By actuating the push plate 703, the sliding plate 702 moves within the sliding groove 701. During this movement, the sliding plate 702 compresses the second spring 704, simultaneously causing the stop plate 705 to move away from the receiving groove 601. This releases the contact limit on the receiving plate 602. To store the receiving plate 602, first move the stop plate 705 away from the receiving groove 601. Then, through the aforementioned process, move the receiving plate 602 into the receiving groove 601. By releasing the push plate 703, the second spring 704 resets, pushing the sliding plate 702 to move. The sliding plate 702 then moves the stop plate 705 towards the receiving groove 601, thus sealing the receiving groove 601 and storing the receiving plate 602. This prevents the telescopic plate 503 from shifting during device operation, improves device stability, and ensures the normal operation of the chromatographic column 1.

[0037] When the cap 2 is installed, the guide strip 203 moves synchronously with the cap 2. By sliding inside the guide groove 102, the guide strip 2 guides and limits the cap 2, preventing the cap 2 from rotating during installation and further improving installation efficiency.

[0038] The cooperation between the sealing gasket 204 and the sealing groove 103 prevents gas or liquid leakage during the experiment, thereby further improving the stability of the device.

[0039] The filter plate 8 can be disassembled via a detachable connection, making it convenient for staff to replace and clean the filter plate 8 to achieve a good filtration effect.

[0040] The anti-slip sleeve increases the friction between the hand and the chromatographic column 1, preventing the column 1 from falling due to slippage during operation.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable chromatographic column that is easy to clean, comprising a chromatographic column (1) and a cap (2), characterized in that: The cap (2) is a through-hole cavity structure (201). The end of the chromatographic column (1) is located inside the cavity structure (201). A limiting groove (101) is provided on the chromatographic column (1). A guide groove (202) is provided on the inner wall of the cavity structure (201). A limiting block (3) is slidably provided inside the guide groove (202). A first spring (4) is provided between the limiting block (3) and the guide groove (202). The limiting block (3) and the limiting groove (101) are inserted together. A telescopic structure is provided on the cap (2). The telescopic structure disengages the limiting block (3) and the limiting groove (101) from being inserted together.

2. The adjustable chromatographic column for easy cleaning according to claim 1, characterized in that: The telescopic structure includes a positioning groove (501) formed on the limiting block (3), a positioning plate (502) is slidably disposed inside the positioning groove (501), a telescopic plate (503) is fixedly disposed on the positioning plate (502), the extension path of the telescopic plate (503) passes through the guide groove (202) and is slidably disposed with the cap (2), and a storage component is disposed on the cap (2) for storing the telescopic plate (503).

3. The adjustable chromatographic column for easy cleaning according to claim 2, characterized in that: The storage component includes a storage structure and a stop structure. The storage structure includes a storage groove (601) opened on the cap (2). A storage plate (602) is provided inside the storage groove (601). The storage plate (602) is fixedly installed on the telescopic plate (503). The stop structure is installed inside the storage groove (601) and is used to stop the storage plate (602).

4. The adjustable chromatographic column for easy cleaning according to claim 3, characterized in that: The stop structure includes a sliding groove (701) formed on the cap (2) and communicating with the storage groove (601). A sliding plate (702) is slidably disposed inside the sliding groove (701). A push plate (703) is fixedly disposed on the sliding plate (702). A second spring (704) is disposed between the sliding plate (702) and the sliding groove (701). A stop plate (705) is fixedly disposed on the sliding plate (702). The stop plate (705) extends into the storage groove (601) and closes the storage groove (601). The stop plate (705) abuts against the end of the storage plate (602) away from the telescopic plate (503).

5. The adjustable chromatographic column for easy cleaning according to claim 1, characterized in that: The chromatographic column (1) is provided with a guide groove (102), and the cap (2) is fixedly provided with a guide strip (203), which is slidably disposed inside the guide groove (102).

6. The adjustable chromatographic column for easy cleaning according to claim 1, characterized in that: The chromatographic column (1) has a sealing groove (103) and the cap (2) has a sealing gasket (204) which abuts against the sealing groove (103).

7. The adjustable chromatographic column for easy cleaning according to claim 1, characterized in that: The chromatographic column (1) is equipped with a filter plate (8).

8. The adjustable chromatographic column for easy cleaning according to claim 1, characterized in that: The outer surface of the chromatographic column (1) is provided with an anti-slip sleeve (9).

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