Sample loading column auxiliary cap screwing device, sample loading column and liquid separator
By designing a concave-convex mating structure between the sample loading column and the auxiliary capping device, the problem of complex screwing operation of the sample loading column in the prior art is solved, realizing convenient capping and column screwing, and simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU SANTAI TECH
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-08
AI Technical Summary
In existing technologies, the capping and tightening of the sample column requires complex tools, and the tightening process is cumbersome.
A sample loading column auxiliary capping device is designed. By forming a concave-convex fit structure between the sample loading column and the auxiliary capping device, axial, circumferential and radial limiting are achieved, simplifying the operation process.
It enables manual operation of the sample column by screwing it in, simplifying the loosening and tightening process and improving the convenience and efficiency of operation.
Smart Images
Figure CN224207455U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chromatography column technology, specifically to a sample loading column auxiliary capping device, a sample loading column, and a liquid separator. Background Technology
[0002] The sample loading column is used for solid sample loading in rapid liquid chromatography operations. It consists of a cap and a threaded connection between the cap and the column body for sealing. During use, the cap needs to be loosened and separated from the column body. After the filter and sample are placed in, the cap is then tightened back onto the column body. Current technology requires tools to clamp the column body or cap, while simultaneously rotating the cap or column body manually. This method uses complex tools and involves cumbersome tightening operations. Utility Model Content
[0003] This utility model provides an auxiliary capping device for a sample loading column, a sample loading column, and a liquid separator.
[0004] Specifically, this utility model is achieved through the following technical solution:
[0005] In the first aspect, this utility model provides a sample loading column auxiliary capping device. The sample loading column includes a column body and a cap. One end face of the sample loading column auxiliary capping device and the end face of the sample loading column form a concave-convex fit structure, so that the sample loading column and the sample loading column auxiliary capping 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. The other end face of the sample loading column auxiliary capping device is connected to a liquid separator.
[0006] In some embodiments, the cap is disposed at one end of the column, and a concave-convex mating structure is formed on the end face of the cap.
[0007] In some embodiments, a raised strip is formed on the end face of the sample column, radiating outward from the center, and a fan-shaped recess is formed between adjacent circumferential raised strips. A recessed strip is formed on one end face of the sample column auxiliary capping device, radiating outward from the center, and a fan-shaped boss is formed between adjacent circumferential recessed strips. The raised strip and the fan-shaped recess cooperate with the recessed strip and the fan-shaped boss to form the concave-convex fit structure.
[0008] In some embodiments, the concave-convex mating structure also enables the upper sample column and the upper sample column auxiliary capping device to be radially limited along the upper sample column.
[0009] In some embodiments, a circular boss is formed in the central region of the end face of the sample column, and a circular recess is formed in the central region of one end face of the sample column auxiliary capping device. The circular boss and the circular recess cooperate to form the concave-convex fit structure.
[0010] In some embodiments, the bottom of the circular recess is provided with a stepped surface, and the end face of the circular boss can abut against the stepped surface.
[0011] In some embodiments, an annular boss is formed on the outer periphery of the end face of the sample column, and an annular sidewall is formed on the outer periphery of one end face of the sample column auxiliary capping device. The annular boss and the annular sidewall cooperate to form the concave-convex fit structure.
[0012] In some embodiments, the other end face of the sample column auxiliary capping device is connected to the liquid separator by screwing or gluing.
[0013] Secondly, this utility model provides a sample loading column, including a column body and a cap, which is used in conjunction with the sample loading column auxiliary capping device described in the first aspect. One end face of the sample loading column auxiliary capping device forms a concave-convex fit structure with the end face of the sample loading column, so that the sample loading column and the sample loading column auxiliary capping 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. The other end face of the sample loading column auxiliary capping device is connected to a liquid separator.
[0014] Thirdly, this utility model provides a liquid separator that is connected to the sample column auxiliary capping device described in the first aspect.
[0015] According to this utility model, by connecting the sample column auxiliary capping device to the liquid separator, the sample column only needs to be pressed axially onto one end face of the sample column auxiliary capping device, so that the concave and convex fitting structure between the end face of the sample column and the end face of the sample column auxiliary capping device interlocks. The sample column can then be manually screwed to loosen or tighten the column body and the cap. The entire device has a simple structure and is convenient and quick to operate. The sample column auxiliary capping device can be connected to the liquid separator at all times, making it less likely to be spilled or lost.
[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0018] Figure 1 This is a schematic diagram of the sample column auxiliary capping device in use according to one embodiment of the present invention;
[0019] Figure 2 This is a schematic diagram of the sample loading column auxiliary capping device in the state before use in one embodiment of this utility model;
[0020] Figure 3 This is a schematic diagram of the sample loading column in one embodiment of the present invention;
[0021] Figure 4 This is a schematic diagram of the sample column auxiliary capping device in one embodiment of the present invention.
[0022] Figure label:
[0023] 01: Sample loading column auxiliary capping device; 02: Sample loading column; 03: Liquid separator;
[0024] 11: Mounting plate; 121: Recessed strip; 122: Fan-shaped boss; 123: Stepped surface; 124: Circular recessed platform;
[0025] 21: Column; 22: Cap; 221: Raised bar; 222: Fan-shaped recess; 223: Circular boss; 224: Annular boss. Detailed Implementation
[0026] This disclosure will now be discussed with reference to several embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement this disclosure, and are not intended to imply any limitation on the scope of this disclosure.
[0027] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to"; the terms "embodiment" and "one embodiment" are to be interpreted as "at least one embodiment"; the term "another embodiment" is to be interpreted as "at least one other embodiment"; the terms "first," "second," etc., may refer to different or the same objects; the term "setup" is not limited to direct or indirect connections, nor to a specific connection method. Other explicit and implicit definitions may also be included below; the term "distal" refers to the direction in which the tip of the puncture needle points, and "proximal" refers to the direction opposite to "distal." Other explicit and implicit definitions may also be included below.
[0028] Specific numerical values or ranges may be referred to in the following description. It should be understood that these values and ranges are merely exemplary and may be helpful in putting the ideas of this disclosure into practice. However, the description of these examples is not intended to limit the scope of this disclosure in any way. These values or ranges may be set differently depending on the specific application scenario and requirements.
[0029] As mentioned above, the tools used in the prior art for loosening and tightening the cap 22 and column 21 are complex in structure, and the tightening operation is cumbersome. The sample column auxiliary capping device, sample column, and liquid separator proposed in the embodiments of this utility model at least partially solve the above problems. Figures 1-4 As shown, the sample column auxiliary capping device 01 of this utility model embodiment includes a mounting plate 11 and a concave-convex mating structure disposed on one end face of the mounting plate 11. The other end face of the mounting plate 11 is installed on the housing of the liquid separator 03 by means of threaded connection or adhesive connection, thereby integrating the sample column auxiliary capping function into the liquid separator 03 and improving the ease of operation.
[0030] The sample loading column 02 includes a column body 21 and a cap 22. The cap 22 can be provided at only one end of the column body 21, or at both ends. In this embodiment, the concave-convex mating structure is formed on one end face of the sample loading column 02, or simultaneously on both end faces, thus eliminating the need to pay attention to the orientation of the sample loading column 02 during screwing, improving operational convenience. For example, the concave-convex mating structure can be provided on the end face of the cap 22, or on the body end face of the column body 21.
[0031] The auxiliary capping device 01 for the upper sample column and the upper sample column 02 are connected by a concave-convex fit structure to achieve the auxiliary capping operation. The concave-convex fit structure enables the upper sample column 02 and the auxiliary capping device 01 to interact in three directions: transmitting pressure along the axial direction of the upper sample column 02, transmitting rotational force along the circumferential direction of the upper sample column 02, and providing a limit along the radial direction of the upper sample column 02.
[0032] In one embodiment, such as Figure 3 As shown, the end face of the cap 22 of the sample column 02 forms a raised strip 221 extending radially outward from the center, and a fan-shaped recess 222 is formed between adjacent circumferential raised strips 221. Correspondingly, as Figure 4 As shown, one end face of the upper sample column auxiliary capping device 01 forms a concave strip 121 extending radially from the center outwards, and a fan-shaped protrusion 122 is formed between adjacent concave strips 121 in the circumferential direction. When the cap 22 of the upper sample column 02 is pressed into the concave-convex fitting structure of the upper sample column auxiliary capping device 01, the protrusion 221 can be embedded in the concave strip 121, and the fan-shaped protrusion 122 can be embedded in the fan-shaped concave platform 222. This allows the upper sample column to be circumferentially limited by the concave-convex fitting structure when screwing on the upper sample column, thereby completing the loosening and tightening of the cap 22 and the column body 21. In another embodiment, the protrusion 221 and the concave strip 121 may not extend radially in a strict straight line. For example, the protrusion 221 and the concave strip 121 may extend radially from the center outwards along a curve or arc. In another embodiment, the radial extension direction of the convex strip 221 and the concave strip 121 may not strictly follow the radial direction. For example, the straight direction in which the convex strip 221 and the concave strip 121 extend radially may have an angle with the radial direction.
[0033] In one embodiment, such as Figure 3 As shown, a circular boss 223 is formed in the central area of the end face of the cap 22 of the sample column 02, as... Figure 4As shown, a circular recess 124 is formed in the center region of the end face of the upper sample column auxiliary capping device 01. When the cap 22 of the upper sample column 02 is pressed into the concave-convex mating structure of the upper sample column auxiliary capping device 01, the circular boss 223 can be embedded in the circular recess 124. This allows the upper sample column 02 to be radially limited by the engagement between the circular boss 223 and the circular recess 124 when it is being screwed on, thus preventing the upper sample column 02 from coming off radially from the upper sample column auxiliary capping device 01 during the screwing process.
[0034] In one embodiment, an annular boss 224 is also formed on the outer periphery of the end face of the cap 22 of the sample column 02. Correspondingly, an annular sidewall is formed on the outer periphery of the end face of the sample column auxiliary capping device 01. Figure 3 As shown, the annular sidewall has a fan-shaped protrusion 122 forming its outer peripheral wall. Through the cooperation between the annular protrusion 224 and the annular sidewall, radial positioning along the upper sample column 02 can also be achieved.
[0035] In one embodiment, when the protrusion 221 is embedded in the concave strip 121, the fan-shaped protrusion 122 is embedded in the fan-shaped concave strip 222, and the annular protrusion 224 is in contact with the annular sidewall, the end faces of the protrusion 221 and the annular protrusion 224 can abut against the surface of the mounting plate 11, thereby limiting the upper sample column 02 and the upper sample column auxiliary capping device 01 along the axial direction of the upper sample column 02, ensuring that the operator can press the cap 22 and the column 21 tightly along the axial direction.
[0036] In another embodiment, when the protrusion 221 is embedded in the concave 121, the fan-shaped protrusion 122 is embedded in the fan-shaped concave 222, and the annular protrusion 224 is in contact with the annular sidewall, the end face of the fan-shaped protrusion 122 can abut against the bottom of the fan-shaped concave 222, and can also limit the upper sample column 02 and the upper sample column auxiliary capping device 01 along the axial direction of the upper sample column 02.
[0037] In one embodiment, the bottom of the circular recess 124 is provided with a stepped surface 123. When the circular boss 223 is embedded in the circular recess 124, the end face of the circular boss 223 can abut against the stepped surface 123, and can also limit the upper sample column 02 and the upper sample column auxiliary capping device 01 along the axial direction of the upper sample column 02.
[0038] Before using the sample column auxiliary capping device 01 of this utility model, such as Figure 2 As shown, after placing the filter and solid sample into the column 21, gently place the cap 22 on the end of the column 21, ensuring that the cap 22 is aligned with the sample loading column auxiliary capping device 01 fixed on the liquid separator 03. Figure 1 As shown, the operator holds the sample column 02 and presses it to align and insert the concave-convex fitting structure, then screws it on to easily tighten the cap 22 and the column 21; conversely, it can be loosened by screwing it off.
[0039] The description of the embodiments herein, including any references to directions and orientations, is for ease of description only and should not be construed as limiting the scope of protection of this utility model. The description of preferred embodiments involves combinations of features, which may exist independently or in combination; this utility model is not particularly limited to the preferred embodiments. The scope of this utility model is defined by the claims.
[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A sample loading column auxiliary capping device, the sample loading column comprising a column body and a cap, characterized in that, The sample column auxiliary capping device forms a concave-convex fit structure with the sample column end face, so that the sample column and the sample column auxiliary capping device can be limited along the axial direction of the sample column and along the circumferential direction of the sample column. The other end face of the sample column auxiliary capping device is connected to the liquid separator.
2. The sample loading column auxiliary capping device according to claim 1, characterized in that, The cap is located at one end of the column, and the concave-convex mating structure is formed on the end face of the cap.
3. The sample loading column auxiliary capping device according to claim 1, characterized in that, The sample column end face forms a convex strip extending radially from the center to the outer periphery, and a fan-shaped concave platform is formed between adjacent circumferential convex strips. The sample column auxiliary capping device has a concave strip extending radially from the center to the outer periphery on one end face, and a fan-shaped protrusion is formed between adjacent circumferential concave strips. The convex strip and the fan-shaped concave platform cooperate with the concave strip and the fan-shaped protrusion to form the concave-convex fit structure.
4. The sample loading column auxiliary capping device according to claim 1, characterized in that, The concave-convex fit structure also enables the upper sample column and the upper sample column auxiliary capping device to be radially limited along the upper sample column.
5. The sample loading column auxiliary capping device according to claim 4, characterized in that, A circular boss is formed in the central area of the end face of the sample column, and a circular concave platform is formed in the central area of one end face of the auxiliary capping device for the sample column. The circular boss and the circular concave platform cooperate to form the concave-convex fit structure.
6. The sample loading column auxiliary capping device according to claim 5, characterized in that, The bottom of the circular concave platform is provided with a stepped surface, and the end face of the circular convex platform can abut against the stepped surface.
7. The sample column auxiliary capping device according to claim 4, characterized in that, An annular boss is formed on the outer periphery of the end face of the sample column, and an annular sidewall is formed on the outer periphery of one end face of the auxiliary capping device for the sample column. The annular boss and the annular sidewall cooperate to form the concave-convex fit structure.
8. The sample loading column auxiliary capping device according to claim 1, characterized in that, The other end of the sample column auxiliary capping device is connected to the liquid separator by screwing or gluing.
9. A sample loading column, comprising a column body and a cap, characterized in that, When used in conjunction with the sample column auxiliary capping device as described in any one of claims 1-8, one end face of the sample column auxiliary capping device and the end face of the sample column form a concave-convex fit structure, so that the sample column and the sample column auxiliary capping device can be limited along the axial direction of the sample column and can be limited along the circumferential direction of the sample column, and the other end face of the sample column auxiliary capping device is connected to the liquid separator.
10. A liquid separator, characterized in that, It is connected to the sample column auxiliary capping device as described in any one of claims 1-8.