CN-224207455-U - Auxiliary cap screwing device for sample loading column, sample loading column and liquid separator

Abstract

The utility model relates to a sample column auxiliary cap screwing device, a sample column and a liquid separator, wherein the sample column comprises a column body and a sealing cap, a concave-convex matching structure is formed between one end face of the sample column auxiliary cap screwing device and the end face of the sample column, the sample loading column and the sample loading column auxiliary cap screwing device can be limited along the axial direction of the sample loading column and limited along the circumferential direction of the sample loading column, and the other end face of the sample loading column auxiliary cap screwing device is connected with the liquid separator. According to the utility model, the whole device has simple structure, convenient and quick operation and difficult scattering and losing.

Inventors

• XU CHAOJIE
• WANG KE

Assignees

• 常州三泰科技有限公司

Dates

Publication Date

20260508

Application Date

20250520

Claims (10)

1. 1. The utility model provides a supplementary spiral cover device of loading column, loading column includes cylinder and closing cap, its characterized in that forms unsmooth cooperation structure between loading column supplementary spiral cover device terminal surface and the loading column terminal surface, makes between loading column and the supplementary spiral cover device of loading column can be along loading column axial spacing to and can be along loading column circumference spacing, loading column supplementary spiral cover device another terminal surface is connected with the liquid separator.
2. 2. The column-loading aid screw cap device according to claim 1, wherein the cap is provided at one end of the column body, and the concave-convex fitting structure is formed at an end face of the cap.
3. 3. The auxiliary screwing cap device for the sample column according to claim 1, wherein the end face of the sample column is provided with a convex strip extending radially from the center towards the periphery, a sector-shaped concave table is formed between the circumferentially adjacent convex strips, a concave strip extending radially from the center towards the periphery is formed on one end face of the auxiliary screwing cap device for the sample column, a sector-shaped boss is formed between the circumferentially adjacent concave strips, and the convex strip and the sector-shaped concave table are respectively matched with the concave strip and the sector-shaped boss to form the concave-convex matched structure together.
4. 4. The loading post auxiliary cap screwing device according to claim 1, wherein the concave-convex matching structure further enables the loading post and the loading post auxiliary cap screwing device to be limited along the radial direction of the loading post.
5. 5. The auxiliary cap screwing device for a sample column according to claim 4, wherein a circular boss is formed in a central area of an end face of the sample column, a circular concave is formed in a central area of an end face of the auxiliary cap screwing device for a sample column, and the circular boss and the circular concave are matched to form the concave-convex matching structure together.
6. 6. The column assist cap screwing device according to claim 5, wherein the bottom of the circular concave is provided with a step surface, and the end surface of the circular boss can be abutted against the step surface.
7. 7. The column assist cap screwing device according to claim 4, wherein an annular boss is formed in an outer peripheral region of an end face of the column, an annular sidewall is formed in an outer peripheral region of an end face of the column assist cap screwing device, and the annular boss and the annular sidewall are matched to form the concave-convex matching structure together.
8. 8. The auxiliary cap screwing device for the sample column according to claim 1, wherein the other end face of the auxiliary cap screwing device for the sample column is connected with the liquid separator in a threaded or adhesive manner.
9. 9. A loading column, comprising a column body and a sealing cover, and being characterized in that the loading column is matched with the loading column auxiliary cap screwing device according to any one of claims 1-8, a concave-convex matching structure is formed between one end face of the loading column auxiliary cap screwing device and the end face of the loading column, so that the loading column and the loading column auxiliary cap screwing device can be limited along the axial direction of the loading column and limited along the circumferential direction of the loading column, and the other end face of the loading column auxiliary cap screwing device is connected with a liquid separator.
10. 10. A liquid separator, characterized in that it is connected to a loading column auxiliary screw cap device according to any one of claims 1-8.

Description

Auxiliary cap screwing device for sample loading column, sample loading column and liquid separator Technical Field The utility model relates to the technical field of chromatographic columns, in particular to a sample loading column auxiliary cap screwing device, a sample loading column and a liquid separator. Background The sample loading column is used for solid sample loading in the rapid liquid phase separation operation and is formed by sealing a sealing cover and a column body in a threaded connection mode. When in use, the sealing cover and the column body are required to be unscrewed and separated, and the sealing cover and the column body are screwed after the filter disc and the sample are put in. In the prior art, a column body or a sealing cover of a sample loading column is required to be clamped by means of a tool, and meanwhile, the sealing cover or the column body of the sample loading column is correspondingly rotated by bare hands. Disclosure of utility model The utility model provides a sample column auxiliary cap screwing device, a sample column and a liquid separator. Specifically, the utility model is realized by the following technical scheme: In a first aspect, the utility model provides an auxiliary cap screwing device for a sample loading column, the sample loading column comprises a column body and a sealing cap, a concave-convex matching structure is formed between one end face of the auxiliary cap screwing device for the sample loading column and the end face of the sample loading column, so that the space between the sample loading column and the auxiliary cap screwing device for the sample loading column can be limited along the axial direction of the sample loading column and can be limited along the circumferential direction of the sample loading column, and the other end face of the auxiliary cap screwing device for the sample loading column is connected with a liquid separator. In some embodiments, the cap is disposed at one end of the cylinder and the male-female mating structure is formed at an end face of the cap. In some embodiments, the end face of the sample loading column forms a convex strip extending radially from the center towards the periphery, a sector concave platform is formed between the circumferentially adjacent convex strips, a concave strip extending radially from the center towards the periphery is formed on the end face of the sample loading column auxiliary cap screwing device, a sector boss is formed between the circumferentially adjacent concave strips, and the convex strip and the sector concave platform are respectively matched with the concave strip and the sector boss to form the concave-convex matched structure together. In some embodiments, the concave-convex matching structure further enables the spacing between the loading column and the loading column auxiliary cap screwing device along the radial direction of the loading column. In some embodiments, the central area of the end face of the sample loading column forms a circular boss, the central area of the end face of the sample loading column auxiliary cap screwing device forms a circular concave table, and the circular boss and the circular concave table are matched to form the concave-convex matching structure together. In some embodiments, the circular recess bottom is provided with a step surface on which the end face of the circular boss can abut. In some embodiments, the peripheral area of the end face of the sample loading column forms an annular boss, the peripheral area of one end face of the auxiliary cap screwing device of the sample loading column forms an annular side wall, and the annular boss and the annular side wall are matched to form the concave-convex matched structure together. In some embodiments, the other end surface of the sample column auxiliary cap screwing device is connected with the liquid separator in a threaded or adhesive mode. In a second aspect, the utility model provides a sample loading column, which comprises a column body and a sealing cover, and is matched with the sample loading column auxiliary cap screwing device in the first aspect, wherein a concave-convex matching structure is formed between one end surface of the sample loading column auxiliary cap screwing device and the end surface of the sample loading column, so that the position between the sample loading column and the sample loading column auxiliary cap screwing device can be limited along the axial direction of the sample loading column and can be limited along the circumferential direction of the sample loading column, and the other end surface of the sample loading column auxiliary cap screwing device is connected with a liquid separator. In a third aspect, the present utility model provides a liquid separator connected to the loading column auxiliary cap screwing device of the first aspect. According to the utility model, the sample column auxiliary cap screwing device is connect