A solid phase extraction column fixing device

Abstract

This application discloses a solid-phase extraction column fixing device, belonging to the technical field of solid-phase extraction column fixing. A solid-phase extraction column fixing device, used for fixing a solid-phase extraction column, includes: a support frame; a fixing plate fixedly connected to the support frame; a first slider horizontally slidably connected to the support frame; a first spring, with both ends fixedly connected to the first slider and the fixing plate respectively; and a clamping member installed on the first slider. The clamping member includes: a clamping block, a first rotating shaft, and a limiting block; the first rotating shaft is rotatably connected to the first slider; the limiting block is fixedly connected to the first rotating shaft; the clamping block includes a clearance groove and a limiting groove; the clearance groove allows the limiting block to be inserted; the limiting groove is used to limit the positioning of the limiting block; and the limiting groove communicates with the clearance groove. The beneficial effect of this application is that it provides a more versatile solid-phase extraction column fixing device.

Description

Technical Field

[0001] This application relates to the field of solid phase extraction column fixation technology, and more specifically, to a solid phase extraction column fixation device. Background Technology

[0002] Solid-phase extraction (SPE) is a sample pretreatment technique that emerged in the mid-1980s. It combines liquid-solid extraction (LC) and liquid chromatography (LC) techniques and is primarily used for sample separation, purification, and enrichment. It reduces matrix interference and improves detection sensitivity. The SPE process utilizes equipment such as filtration devices, solid-phase extraction columns, and vacuum pumps. The conventional method involves pouring the sample into a solid-phase extraction column and then using vacuum or nitrogen blowing to force the sample through the column. This causes the target analytes to be adsorbed onto the column packing material, achieving separation and purification.

[0003] Existing solid-phase extraction (SPE) techniques are generally divided into manual and automated SPE. Automated SPE primarily uses SPE holders to store SPE columns. Most automated SPE instruments come with SPE column holders with fixed tube diameters. Common SPE column sizes include 1ml, 3ml, 6ml, and 12ml, etc. These different column sizes have different tube diameters, and fixed-diameter SPE column holders can only be used for columns of that size. When experiments require using different sizes of SPE columns, the corresponding holder must be replaced, resulting in limited versatility and a lack of adaptability. Therefore, this paper proposes a more versatile SPE column holder. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a solid-phase extraction column fixing device for fixing a solid-phase extraction column, comprising: a support frame; a fixing plate fixedly connected to the support frame; a first slider horizontally slidably connected to the support frame; a first spring, with both ends fixedly connected to the first slider and the fixing plate respectively; and a clamping member installed on the first slider. The clamping member includes: a clamping block, a first rotating shaft, and a limiting block; the first rotating shaft is rotatably connected to the first slider; the limiting block is fixedly connected to the first rotating shaft; the clamping block includes a clearance groove and a limiting groove; the clearance groove allows the limiting block to be inserted; the limiting groove is used to limit the positioning of the limiting block; and the limiting groove communicates with the clearance groove.

[0006] When it is necessary to fix solid phase extraction columns of different specifications, rotate the first rotating shaft. The rotation of the first rotating shaft will drive the limiting block to rotate, so that the limiting block rotates to the position of the clearance groove, and the clamping block can be removed and replaced with the corresponding clamping block. It is applicable to fixing solid phase extraction columns of different specifications, so it has better versatility.

[0007] Furthermore, the clamping member is provided in two sets; the two sets of clamping members are arranged symmetrically.

[0008] Furthermore, the clamping block includes a clamping surface; the clamping surface is used to clamp the solid phase extraction column.

[0009] Furthermore, the support frame is provided with a first slide groove along the length direction of the support frame; the first slider portion is located in the first slide groove and moves along the first slide groove.

[0010] Furthermore, the fixing plate is located at one end of the first spring; the first slider is located at the other end of the first spring.

[0011] Furthermore, the solid phase extraction column fixing device also includes: a first push plate, which is fixedly connected to the first slider.

[0012] Furthermore, the first push plate is located at the upper end of the first slider.

[0013] Furthermore, the solid phase extraction column fixing device also includes a second push plate, which is fixedly connected to the first rotating shaft.

[0014] Furthermore, the second push plate is located at one end of the first rotating shaft; the limiting block is located at the other end of the first rotating shaft.

[0015] Furthermore, the support frame is provided with a clearance hole; the clearance hole allows the solid phase extraction column to pass through. The beneficial effect of this application is that it provides a solid phase extraction column fixing device with better versatility. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0017] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0018] In the attached diagram: Figure 1 This is an overall schematic diagram based on an embodiment of this application; Figure 2This is a structural schematic diagram of a part of the first embodiment, mainly showing the structure of the first slide and the clearance hole; Figure 3 This is a structural schematic diagram of a part of the first embodiment, mainly showing the structure of the limiting block; Figure 4 This is a structural schematic diagram of a part of the first embodiment, mainly showing the structure of the clearance groove and the limiting groove.

[0019] Reference numerals: 100, solid phase extraction column fixing device; 101, solid phase extraction column; 102, support frame; 102a, first sliding groove; 102b, clearance hole; 103, fixing plate; 104, first slider; 105, first spring; 106, first push plate; 107, clamping block; 107a, clearance groove; 107b, limiting groove; 107c, clamping surface; 108, first rotating shaft; 109, limiting block; 110, second push plate. Detailed Implementation

[0020] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0021] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0022] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0023] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0024] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Example 1: Reference Figure 1-4A solid-phase extraction column fixing device 100 is disclosed for fixing a solid-phase extraction column 101. The device includes a support frame 102, a fixing plate 103, a first slider 104, a first spring 105, a first push plate 106, and clamping members for holding the solid-phase extraction column 101. The fixing plate 103 is fixedly connected to the support frame 102. The first slider 104 is horizontally slidably connected to the support frame 102. Specifically, the support frame 102 has a first groove 102a along its length. The first slider 104 is partially located within the first groove 102a and moves along it. The two ends of the first spring 105 are fixedly connected to the first slider 104 and the fixing plate 103, respectively. The first push plate 106 is located at the upper end of the first slider 104 and is fixedly connected to it.

[0026] A clamping component is mounted on the first slider 104. The clamping component includes a clamping block 107, a first rotating shaft 108, a limiting block 109, and a second push plate 110. The first rotating shaft 108 is rotatably connected to the first slider 104. The limiting block 109 is fixedly connected to the first rotating shaft 108. The clamping block 107 includes a clearance groove 107a and a limiting groove 107b. The clearance groove 107a is for the limiting block 109 to insert into, and the limiting groove 107b is used to limit the positioning of the limiting block 109. The limiting groove 107b communicates with the clearance groove 107a. When it is necessary to replace the corresponding clamping block 107, rotate the second push plate 110. The rotation of the second push plate 110 drives the first rotating shaft 108 to rotate. A damping block is provided between the first rotating shaft 108 and the first slider 104. Without external force, the first rotating shaft 108 will not rotate. The rotation of the first rotating shaft 108 drives the limiting block 109 to rotate, so that the limiting block 109 rotates to the position of the limiting groove 107b. Then the clamping block 107 can be removed and replaced with the clamping block 107 of the corresponding specification. It is suitable for fixing solid phase extraction columns 101 of different specifications and has better versatility.

[0027] Two sets of clamping components are provided, symmetrically arranged. Two clamping components are provided for each of the fixed plate 103, the first slider 104, and the first spring 105. The clamping block 107 includes a clamping surface 107c, which is used to clamp the solid-phase extraction column 101. The fixed plate 103 is located at one end of the first spring 105, and the first slider 104 is located at the other end of the first spring 105. The second push plate 110 is fixedly connected to the first rotating shaft 108. The second push plate 110 is located at one end of the first rotating shaft 108, and the limiting block 109 is located at the other end of the first rotating shaft 108. The support frame is provided with a clearance hole 102b, through which the solid-phase extraction column 101 passes.

[0028] Workflow: During installation, push the first push plate 106. The movement of the first push plate 106 causes the first slider 104 to move. The movement of the first slider 104 causes the clamping block 107 to move. Then, the solid phase extraction column 101 passes through the clearance hole 102b of the support frame. Then, release the second push plate 110. Under the action of the first spring 105, the first slider 104 will reset. The movement of the first slider 104 causes the clamping block 107 to move, thereby clamping and fixing the solid phase extraction column 101. When it is necessary to replace the corresponding clamping block 107, rotate the second push plate 110. The rotation of the second push plate 110 drives the first rotating shaft 108 to rotate. A damping block is provided between the first rotating shaft 108 and the first slider 104. Without external force, the first rotating shaft 108 will not rotate. The rotation of the first rotating shaft 108 drives the limiting block 109 to rotate, so that the limiting block 109 rotates to the position of the limiting groove 107b. Then the clamping block 107 can be removed and replaced with the clamping block 107 of the corresponding specification. It is suitable for fixing solid phase extraction columns 101 of different specifications and has better versatility.

[0029] Example 2: To facilitate operation, based on Embodiment 1, one set of clamping members is fixed to the fixing plate 103 on one side. During use, simply pushing the clamping member on the other side is sufficient to fix the solid-phase extraction column 101, making operation more convenient. The above description is merely an explanation of some preferred embodiments of this disclosure and the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-mentioned technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, technical solutions formed by substituting the above-mentioned features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A solid-phase extraction column fixing device for fixing a solid-phase extraction column, comprising: Support frame; Its features are: The solid-phase extraction column fixing device further includes: The fixing plate is fixedly connected to the support frame; The first slider is horizontally slidably connected to the support frame; The first spring is fixedly connected at both ends to the first slider and the fixed plate, respectively. A clamping element is mounted on the first slider; The clamping component includes: a clamping block, a first rotating shaft, and a limiting block; the first rotating shaft is rotatably connected to a first slider; the limiting block is fixedly connected to the first rotating shaft; the clamping block includes a clearance groove and a limiting groove; the clearance groove is for the limiting block to be inserted; the limiting groove is used to limit the limiting block; the limiting groove is connected to the clearance groove.

2. The solid-phase extraction column fixing device according to claim 1, characterized in that: The clamping components are provided in two sets; The two sets of clamping components are arranged symmetrically.

3. The solid-phase extraction column fixing device according to claim 2, characterized in that: The clamping block includes a clamping surface; The clamping surface is used to clamp the solid phase extraction column.

4. The solid-phase extraction column fixing device according to claim 3, characterized in that: The support frame is provided with a first sliding groove along the length of the support frame; The first slider portion is located within the first slide groove and moves along the first slide groove.

5. The solid-phase extraction column fixing device according to claim 4, characterized in that: The fixing plate is located at one end of the first spring; The first slider is located at the other end of the first spring.

6. The solid-phase extraction column fixing device according to claim 5, characterized in that: The solid-phase extraction column fixing device further includes: The first push plate is fixedly connected to the first slider.

7. The solid-phase extraction column fixing device according to claim 6, characterized in that: The first push plate is located at the upper end of the first slider.

8. The solid-phase extraction column fixing device according to claim 7, characterized in that: The solid-phase extraction column fixing device further includes: The second push plate is fixedly connected to the first rotating shaft.

9. The solid-phase extraction column fixing device according to claim 8, characterized in that: The second push plate is located at one end of the first rotating shaft; The limiting block is located at the other end of the first rotating shaft.

10. The solid-phase extraction column fixing device according to claim 1, characterized in that: The support frame is provided with clearance holes; The vent allows the solid-phase extraction column to pass through.

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