Single-walled carbon nanotube solid-phase extraction small column

Abstract

The utility model discloses a single-walled carbon nanotube solid-phase extraction small column, which belongs to the technical field of production and processing of single-walled carbon nanotubes and comprises a column casing, two ends of the column casing are open, a height adjusting component is mounted outside the column casing, and a sealing component is inserted into an opening at one end of the column casing. The height adjusting assembly comprises a self-locking type telescopic frame and a supporting ring, the fixed end of the self-locking type telescopic frame is fixedly connected with an assembling ring, positioning blocks are symmetrically installed on the surface of the assembling ring, and the extending end of the self-locking type telescopic frame is fixedly connected with the supporting ring. A height adjusting assembly is installed outside the column casing, when the column casing is inserted relative to the pipe frame, the supporting base is longitudinally pushed and pulled relative to the column casing according to the requirement of the insertion depth, under the supporting and guiding effects of the self-locking telescopic frame, height adjustment and fixation of the supporting base relative to the column casing are completed, and the good auxiliary supporting performance is achieved; and when the column casing is inserted relative to the pipe frame, the insertion depth can be conveniently controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of single-walled carbon nanotubes, and more specifically to a single-walled carbon nanotube solid phase extraction column. Background Art

[0002] Carbon nanotubes, also known as buckytubes, are one-dimensional quantum materials with a special structure. Their radial dimensions are in the nanometer range, their axial dimensions are in the micrometer range, and both ends of the tubes are basically sealed. Carbon nanotubes are mainly composed of several to dozens of layers of coaxial circular tubes of carbon atoms arranged in a hexagonal pattern. Solid phase extraction columns are a sample pretreatment device developed from chromatography columns for extraction, separation, and concentration. They are mainly used in sample pretreatment of target compounds in various foods, agricultural and livestock products, environmental samples, and biological samples. Solid phase extraction technology has been widely used in many national standards (GB / T) and industry analysis standards.

[0003] After searching, the existing patent number CN216955886U is a single-walled carbon nanotube solid phase extraction column, including a column, a cover plate is provided on the column, a fixed plug for connecting the column is fixedly installed on the cover plate, two sieve plates are fixedly installed in the column, and a single-walled carbon nanotube filler layer is installed between the two sieve plates; a mounting block is fixedly connected to the column, a threaded rod is slidably connected to the mounting block, a through hole for vertical movement of the threaded rod is opened on the mounting block, and the cover plate and the threaded rod are slidably connected; a fixing mechanism is provided on the threaded rod, and the fixing mechanism includes a collar fixedly connected to the threaded rod, and an elastic sealing ring is fixedly connected to the collar. Pollutants in the outside air are not easy to enter the interior of the column, which prevents the purity of the target component separated and purified by the column from decreasing, and the accuracy of the final liquid chromatography detection will not decrease.

[0004] For the solid phase extraction column dedicated to single-walled carbon nanotubes, its column structure is relatively simple. When it is plugged into the tube rack, it is not convenient to control the insertion depth. In addition, the top open end of the extraction column after insertion is not well sealed and is prone to leakage. Therefore, we propose a single-walled carbon nanotube solid phase extraction column to solve the above problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a single-walled carbon nanotube solid phase extraction column, in which a height adjustment component is installed on the outside of the column barrel. When the column barrel is inserted relative to the tube rack, the support seat is pushed and pulled longitudinally relative to the column barrel according to the requirements of the insertion depth. Under the support and guiding action of the self-locking telescopic frame, the height adjustment and fixation of the support seat relative to the column barrel are completed. The utility model has good auxiliary support performance, and when the column barrel is inserted relative to the tube rack, it is convenient to control the insertion depth.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A single-walled carbon nanotube solid phase extraction column comprises a column barrel, both ends of which are open, a height adjustment component is installed outside the column barrel, and a sealing component is plugged into the opening position of one end of the column barrel;

[0010] The height adjustment assembly comprises a self-locking telescopic frame and a support ring, the fixed end of the self-locking telescopic frame is fixedly connected to a mounting ring, the surface of the mounting ring is symmetrically mounted with positioning blocks, the extended end of the self-locking telescopic frame is fixedly connected to the support ring, the surface of the support ring is bonded with a flexible support, and the outside of the flexible support is bonded with a support seat;

[0011] The sealing assembly comprises a connecting tube and a conduit, the connecting tube and the conduit are in conductive connection, and a rubber ring is bonded to the open end of the conduit.

[0012] Preferably, positioning grooves are symmetrically provided on the outer surface of the column, and the positioning blocks of the assembly ring are correspondingly engaged with the positioning grooves of the column.

[0013] Preferably, the assembly ring is sleeved on the outside of the column, and the self-locking telescopic frame and the column are arranged in parallel.

[0014] Preferably, the support ring and the support seat are both sleeved on the outside of the column, and a movement gap is provided between the support ring and the support seat and the column.

[0015] Preferably, an anti-slip boss is provided on the lower surface of the support seat.

[0016] Preferably, a step groove is provided at an opening position of the end surface of the column tube, and a sealing ring is bonded to the step groove position of the column tube.

[0017] Preferably, the outer wall of the connecting tube is sleeved with a rubber pad, and the rubber pad corresponds to the sealing ring of the column tube.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] (1) In this scheme, a height adjustment component is installed on the outside of the column. When the column is inserted relative to the pipe rack, the support seat is pushed and pulled longitudinally relative to the column according to the required insertion depth. Under the support and guidance of the self-locking telescopic frame, the height adjustment and fixation of the support seat relative to the column are completed. It has good auxiliary support performance and is convenient for controlling the insertion depth when the column is inserted relative to the pipe rack.

[0021] (2) The sealing assembly of this scheme includes a connecting tube and a conduit. Before the column tube is connected to an external pipeline, the connecting tube is first inserted into the end opening of the column tube until the rubber pad sleeved on the outer wall of the connecting tube fits and is fixed with the sealing ring of the column tube. The external pipeline and the conduit are connected, and the sealing performance is very good, and leakage is not easy to occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the column structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the height adjustment component structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the sealing component structure of the utility model.

[0026] Description of the numbers in the figure:

[0027] 1. Column tube; 101. Positioning groove; 2. Sealing ring; 3. Connecting tube; 4. Rubber pad; 5. Conduit; 6. Rubber ring; 7. Self-locking telescopic frame; 8. Support ring; 801. Flexible support; 9. Support seat; 10. Assembly ring; 11. Positioning block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0029] Embodiment 1:

[0030] See also Figure 1-4 A single-walled carbon nanotube solid phase extraction column comprises a column barrel 1, both ends of the column barrel 1 are open, a height adjustment component is installed on the outside of the column barrel 1, and a sealing component is plugged into the opening position of one end of the column barrel 1;

[0031] The height adjustment component includes a self-locking telescopic frame 7 and a support ring 8. The fixed end of the self-locking telescopic frame 7 is fixedly connected to an assembly ring 10, and a positioning block 11 is symmetrically installed on the surface of the assembly ring 10. The extended end of the self-locking telescopic frame 7 is fixedly connected to the support ring 8, and a flexible support 801 is bonded to the surface of the support ring 8, and a support seat 9 is bonded to the outside of the flexible support 801.

[0032] The outer surface of the column barrel 1 is symmetrically provided with positioning grooves 101, the positioning block 11 of the assembly ring 10 is snap-fitted with the positioning groove 101 of the column barrel 1, the assembly ring 10 is sleeved on the outside of the column barrel 1, the self-locking telescopic frame 7 and the column barrel 1 are arranged in parallel, the support ring 8 and the support seat 9 are both sleeved on the outside of the column barrel 1, a movement gap is arranged between the support ring 8 and the support seat 9 and the column barrel 1, and an anti-slip boss is arranged on the lower surface of the support seat 9.

[0033] It should be noted that a height adjustment component is installed on the outside of the column tube 1. When the column tube 1 is plugged into the pipe rack, the support seat 9 is pushed and pulled longitudinally relative to the column tube 1 according to the requirement of the plug-in depth. Under the support and guiding action of the self-locking telescopic frame 7, the height adjustment and fixation of the support seat 9 relative to the column tube 1 are completed. It has good auxiliary support performance, and when the column tube 1 is plugged into the pipe rack, it is convenient to control the plug-in depth; the fixed end of the self-locking telescopic frame 7 is fixedly connected with an assembly ring 10, and the surface of the assembly ring 10 is symmetrically installed with positioning blocks 11, and the outer surface of the column tube 1 is symmetrically opened with positioning grooves 101, and the positioning blocks 11 of the assembly ring 10 and the positioning grooves 101 of the column tube 1 are snap-fitted and correspond to each other, which is convenient for assembly and disassembly.

[0034] See also Figure 1 and Figure 4 The sealing assembly includes a connecting tube 3 and a conduit 5, the connecting tube 3 and the conduit 5 are in conductive connection, a rubber ring 6 is bonded to the open end of the conduit 5, a step groove is provided at the end opening of the column tube 1, a sealing ring 2 is bonded to the step groove of the column tube 1, and a rubber pad 4 is provided on the outer wall of the connecting tube 3, and the rubber pad 4 corresponds to the sealing ring 2 of the column tube 1.

[0035] It should be noted that the sealing assembly includes a connecting tube 3 and a conduit 5. Before the column tube 1 is connected to an external pipeline, the connecting tube 3 is first inserted into the end opening of the column tube 1 until the rubber pad 4 sleeved on the outer wall of the connecting tube 3 is fitted and fixed with the sealing ring 2 of the column tube 1. The external pipeline and the conduit 5 are connected, and the sealing performance is very good, and leakage is not easy to occur.

[0036] When in use: a height adjustment component is installed on the outside of the column 1. When the column 1 is plugged into the pipe rack, the support seat 9 is pushed and pulled longitudinally relative to the column 1 according to the need for the plugging depth. Under the support and guiding action of the self-locking telescopic frame 7, the height adjustment and fixation of the support seat 9 relative to the column 1 are completed. It has good auxiliary support performance. When the column 1 is plugged into the pipe rack, it is convenient to control the plugging depth; the fixed end of the self-locking telescopic frame 7 is fixedly connected with an assembly ring 10, and the surface of the assembly ring 10 is symmetrically installed with positioning blocks. 11. The outer surface of the column tube 1 is symmetrically provided with positioning grooves 101. The positioning blocks 11 of the assembly ring 10 and the positioning grooves 101 of the column tube 1 are snap-fitted and correspond to each other, which is convenient for assembly and disassembly. The sealing component includes a connecting tube 3 and a conduit 5. Before the column tube 1 is connected to an external pipeline, the connecting tube 3 is first inserted into the end opening position of the column tube 1 until the rubber pad 4 sleeved on the outer wall of the connecting tube 3 is fitted and fixed with the sealing ring 2 of the column tube 1, and the external pipeline is connected to the conduit 5, which has good sealing performance and is not prone to leakage.

[0037] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A single-walled carbon nanotube solid phase extraction column, comprising a column barrel (1), both ends of the column barrel (1) are open, and characterized in that: A height adjustment component is installed on the outside of the column tube (1), and a sealing component is plugged into an opening at one end of the column tube (1); The height adjustment assembly comprises a self-locking telescopic frame (7) and a support ring (8); the fixed end of the self-locking telescopic frame (7) is fixedly connected to a mounting ring (10); a positioning block (11) is symmetrically mounted on the surface of the mounting ring (10); the extended end of the self-locking telescopic frame (7) is fixedly connected to the support ring (8); a flexible support (801) is bonded to the surface of the support ring (8); and a support seat (9) is bonded to the outside of the flexible support (801); The sealing assembly comprises a connecting tube (3) and a conduit (5), wherein the connecting tube (3) and the conduit (5) are in conductive connection, and a rubber ring (6) is bonded to the open end of the conduit (5).

2. The single-walled carbon nanotube solid phase extraction column according to claim 1, characterized in that: The outer surface of the column (1) is symmetrically provided with positioning grooves (101), and the positioning block (11) of the assembly ring (10) and the positioning groove (101) of the column (1) are correspondingly engaged.

3. The single-walled carbon nanotube solid phase extraction column according to claim 1, characterized in that: The assembly ring (10) is sleeved on the outside of the column (1), and the self-locking telescopic frame (7) and the column (1) are arranged in parallel.

4. The single-walled carbon nanotube solid phase extraction column according to claim 1, characterized in that: The support ring (8) and the support seat (9) are both sleeved on the outside of the column barrel (1), and a movement gap is provided between the support ring (8) and the support seat (9) and the column barrel (1).

5. The single-walled carbon nanotube solid phase extraction column according to claim 1, characterized in that: The lower surface of the support seat (9) is provided with an anti-slip boss.

6. The single-walled carbon nanotube solid phase extraction column according to claim 1, characterized in that: A step groove is provided at the opening position of the end surface of the column tube (1), and a sealing ring (2) is bonded to the step groove position of the column tube (1).

7. The single-walled carbon nanotube solid phase extraction column according to claim 1, characterized in that: The outer wall of the connecting tube (3) is sleeved with a rubber pad (4), and the rubber pad (4) corresponds to the sealing ring (2) of the column tube (1).

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