A storage device for a liquid chromatography column

Abstract

This utility model relates to the field of chromatographic column preservation technology, specifically a storage device for liquid chromatography columns. It includes a storage box, two support mechanisms, and multiple limiting frames. The storage box has an opening at the top; there are an even number of limiting frames, all located inside the storage box. Each limiting frame has a rectangular structure, with multiple limiting holes arranged side-by-side at its upper end. The two limiting frames on either side are fixedly connected to the inner wall of the storage box, the two middle limiting frames are fixedly connected, and the remaining adjacent limiting frames have a sliding connection. The two support mechanisms support the two middle limiting frames. In this utility model, the multiple limiting frames unfold in a stepped manner after being pulled out, optimizing the observable field of view and significantly reducing the average column retrieval time.

Description

Technical Field

[0001] This utility model relates to the field of chromatographic column preservation technology, and in particular to a storage device for liquid chromatography columns. Background Technology

[0002] Liquid chromatography (LC) is widely used in pharmaceutical research and development and product testing. As a core tool of modern analytical chemistry, LC technology is extensively applied in pharmaceuticals, environmental monitoring, food safety, and life science research. The chromatographic column, as the "heart" component of the LC system, directly affects the separation effect and detection accuracy. Due to the differences in analytes, laboratories often need to be equipped with various specifications (such as C18, amino columns, chiral columns, etc.) and sizes (length 50mm-250mm, inner diameter 2.1mm-4.6mm), with a single institution holding dozens or even hundreds of columns. Columns not in use for extended periods must be stored in suitable containers.

[0003] Traditional chromatographic column storage devices typically have the following problems: in order to increase the storage capacity per unit space, the labels on the surface of densely packed chromatographic columns are easily obscured, and the operator needs to repeatedly move the outer columns to reach the target, making it impossible to quickly retrieve the target chromatographic column. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a storage device for liquid chromatography columns.

[0005] The technical solution of this utility model is a storage device for a liquid chromatography column, comprising:

[0006] Storage box, with an opening at the top;

[0007] Multiple limiting frames, an even number of which are located inside the storage box, are rectangular in structure. Each limiting frame has multiple limiting holes arranged side by side at its upper end. The two limiting frames on both sides are fixedly connected to the inner wall of the storage box, and the two limiting frames in the middle are also fixedly connected. The remaining two adjacent limiting frames are slidably connected. Except for the two limiting frames on both sides, the bottom ends of the remaining limiting frames are connected to connecting sliders. Except for the two limiting frames in the middle, the ends of the remaining limiting frames are provided with grooves for the sliding of the connecting sliders on the adjacent sides.

[0008] Two support mechanisms are used to support the two middle limiting frames.

[0009] Preferably, the support mechanism is an L-shaped support rod, with two L-shaped support rods located on both sides of the middle limiting frame, and the L-shaped support rods are rotatably installed at the bottom of the middle limiting frame; both sides of the storage box are provided with outwardly protruding U-shaped shells.

[0010] Preferably, the structure composed of multiple limiting frames is arranged symmetrically from left to right.

[0011] Preferably, rubber support strips are provided at both ends of the bottom inside the storage box.

[0012] Preferably, a cover is rotatably mounted on the storage box, and the rotating end of the cover is connected to the storage box by a snap fastener.

[0013] Preferably, a rubber plate is provided on the inner wall of the cover plate.

[0014] Preferably, the storage box is made of transparent material.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] 1. By lifting the middle limiting frame upwards, and utilizing the linkage structure between the bottom connecting slider and the adjacent frame groove, multiple side-by-side limiting frames can be quickly unfolded into a stepped layout with a high middle and low sides. The stepped placement design solves the problem of difficulty in observing labels on the inner chromatographic columns and inconvenience in placement when the columns are laid flat in a dense manner.

[0017] 2. The stepped arrangement ensures that the labels of all columns are clearly visible to the operator, eliminating the need to repeatedly flip or move other columns and enabling rapid and accurate identification of the target column.

[0018] 3. Multiple rectangular limiting frames are arranged horizontally and closely side by side under normal storage conditions, with multiple chromatographic columns densely packed on them, which significantly improves the storage capacity per unit volume. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the cover plate after it is opened in this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the cover plate after it is closed in this utility model.

[0021] Figure 3 This is a cross-sectional view of the storage box in this utility model.

[0022] Figure 4 This is a structural diagram illustrating the connection relationship between two adjacent limiting frames in this utility model.

[0023] Reference numerals: 1. Storage box; 101. U-shaped outer shell; 2. Limiting frame; 201. Limiting hole; 202. Slide groove; 3. Cover plate; 4. Rubber plate; 5. Buckle; 6. L-shaped support rod; 7. Handle; 8. Connecting slider; 9. Rubber support strip. Detailed Implementation

[0024] Example 1

[0025] like Figures 1-3 As shown in the figure, the liquid chromatography column storage device proposed in this embodiment includes a storage box 1, two support mechanisms and multiple limiting frames 2.

[0026] The storage box 1 is made of transparent material; the upper end of the storage box 1 is open; a cover plate 3 is rotatably installed on the storage box 1, and the rotating end of the cover plate 3 is connected to the storage box 1 by a buckle 5; furthermore, in order to facilitate lifting the storage box 1, a handle 7 is installed on the cover plate 3; a rubber plate 4 is provided on the inner wall of the cover plate 3; and rubber support strips 9 are provided at both ends of the bottom inner side of the storage box 1.

[0027] The structure composed of multiple limiting frames 2 is arranged symmetrically from left to right. There is an even number of limiting frames 2, and all the limiting frames 2 are located inside the storage box 1. The limiting frames 2 are rectangular structures. Multiple limiting holes 201 are arranged side by side at the top of the limiting frames 2. The two limiting frames 2 on both sides are fixedly connected to the inner wall of the storage box 1. The two limiting frames 2 in the middle are fixedly connected. The remaining two adjacent limiting frames 2 have a sliding connection structure. Except for the two limiting frames 2 on both sides, the bottom ends of the remaining multiple limiting frames 2 are connected to connecting sliders 8. Except for the two limiting frames 2 in the middle, the ends of the remaining multiple limiting frames 2 are provided with grooves 202 for the adjacent connecting sliders 8 to slide.

[0028] Two support mechanisms are used to support the two middle limiting frames 2.

[0029] The workflow of this technical solution is as follows:

[0030] Column placement: Insert the liquid chromatography column vertically into the limiting hole 201 at the top of the limiting frame 2. Each rectangular limiting frame 2 has multiple parallel limiting holes 201. The lower end of the chromatography column hangs naturally onto the rubber support strip 9 at the bottom of the storage box 1. The rubber material provides cushioning protection.

[0031] Space optimization layout: Multiple limiting frames 2 are arranged horizontally side by side inside the storage box 1. The limiting frames 2 on both sides are fixed to the inner wall of the storage box 1. All limiting frames 2 are at the same horizontal height in the initial state, making the most of the box space.

[0032] Sealing and protection: Close the cover plate 3 and lock the storage box 1 with the buckle 5. The rubber plate 4 on the inner wall of the cover plate 3 presses against the upper end of the chromatographic column to form a sealed and dustproof environment. The transparent box material, such as acrylic, makes it easy to observe the column label from the outside.

[0033] The core innovative structure of the stepped retrieval mode is as follows: When the operator pulls the two middle limiting frames 2 upwards, the connecting sliders 8 at the bottom of their two sides slide within the grooves 202 of the adjacent limiting frames 2, thereby causing the adjacent side limiting frames 2 to rise passively, but at a lower height than the middle frame. The sliders 8 then continue to raise the outermost limiting frames 2, with the height decreasing progressively. All limiting frames 2 are arranged in a stepped pattern, with the middle being higher and the sides lower. Figure 1 As shown.

[0034] Column removal stage: The stepped structure ensures that all column labels face the operator, avoiding obstructed vision when the columns are laid flat; when removing the inner columns, simply hold the exposed top of the column and pull it out vertically.

[0035] Reset phase: The support mechanism releases the support of the middle limiting frame 2, and the middle limiting frame 2 is slowly lowered. Under the action of gravity, all limiting frames 2 slide down synchronously along the slide groove 202 via the slider 8 to restore the horizontal state. Finally, the cover plate 3 is closed.

[0036] In summary, this technical solution has the following advantages:

[0037] 1. Improved space utilization: The compact layout allows for the storage of more chromatographic columns.

[0038] 2. The stepped unfolding greatly shortens the average pillar acquisition time and optimizes the observable field of view.

[0039] Example 2

[0040] like Figure 1 As shown, the liquid chromatography column storage device proposed in this embodiment has an L-shaped support rod 6 compared to the first embodiment. The two L-shaped support rods 6 are located on both sides of the middle limiting frame 2, and the L-shaped support rods 6 are rotatably installed at the bottom of the middle limiting frame 2. Both sides of the storage box 1 are provided with outwardly protruding U-shaped shells 101.

[0041] In this embodiment, the L-shaped support rod 6 is rotated downwards by 180 degrees so that its horizontal end contacts the upper edge of the U-shaped outer shell 101, forming a temporary support structure. It should be added that the L-shaped support rod 6 can be rotatably connected to the limiting frame 2 by a damping shaft, which can increase the rotational resistance of the L-shaped support rod 6 and prevent the L-shaped support rod 6 from easily rotating. When reset to the inside of the storage box 1, the L-shaped support rod 6 is rotated 180 degrees again so that the multiple limiting frames 2 can be placed inside the limiting hole 201 after reset.

[0042] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A storage device for liquid chromatography columns, characterized by include: Storage box (1), the upper end of storage box (1) is open; Multiple limiting frames (2), the number of limiting frames (2) is even, the multiple limiting frames (2) are all set inside the storage box (1), the limiting frames (2) are rectangular structures, the upper end of the limiting frames (2) is provided with multiple limiting holes (201) side by side, the two limiting frames (2) on both sides are fixedly connected to the inner wall of the storage box (1), the two limiting frames (2) in the middle are fixedly connected, the remaining and adjacent two limiting frames (2) have a sliding connection structure, except for the two limiting frames (2) on both sides, the bottom ends of the other multiple limiting frames (2) are connected with connecting sliders (8), except for the two limiting frames (2) in the middle, the ends of the other multiple limiting frames (2) are provided with sliding grooves (202) for the adjacent side connecting sliders (8) to slide; Two support mechanisms are used to support the two middle limiting frames (2).

2. The liquid chromatography column storage device of claim 1, wherein, The support mechanism is an L-shaped support rod (6), with two L-shaped support rods (6) located on both sides of the middle limiting frame (2), and the L-shaped support rods (6) are rotatably installed at the bottom of the middle limiting frame (2); both sides of the storage box (1) are provided with outwardly protruding U-shaped shells (101).

3. The storage device for liquid chromatography columns according to claim 1, wherein, The structure composed of multiple limiting frames (2) is arranged symmetrically on the left and right.

4. The storage device for liquid chromatography columns according to claim 1, wherein, Rubber support strips (9) are provided at both ends of the bottom inside the storage box (1).

5. The liquid chromatography column storage device of claim 4, wherein, A cover plate (3) is rotatably mounted on the storage box (1), and the rotating end of the cover plate (3) is connected to the storage box (1) by a buckle (5).

6. The liquid chromatography column storage device of claim 5, wherein, A rubber plate (4) is provided on the inner wall of the cover plate (3).

7. The storage device for liquid chromatography columns according to claim 1, wherein, The storage box (1) is made of transparent material.

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