A single-walled carbon nanotube solid-phase extraction column

Abstract

This utility model discloses a single-walled carbon nanotube solid-phase extraction column, relating to the field of solid-phase extraction technology. It includes a column body with a top mounting plate at the top. A sealing assembly is located on the top of the top mounting plate, comprising a top mounting plate and a sealing plug at the bottom. A limiting ring and a limiting top plate are located on one side of the top of the top mounting plate, while a rotating rod and a limiting block are located at the bottom of the limiting top plate. A limiting assembly, including a limiting side plate and a limiting rod, is located on the side of the limiting side plate. One end of the limiting rod is connected to a mounting plate and a supporting spring. This utility model achieves a sealed connection between the column body and the top mounting plate and the sealing plug, reducing the entry of airborne impurities into the column and affecting its use. Furthermore, the rotating rod drives the limiting block through the insertion slot, connecting it to the bottom of the top mounting plate, thereby achieving a limiting connection between the top mounting plate and the top mounting plate.

Description

Technical Field

[0001] This utility model relates to the field of solid phase extraction technology, and in particular to a single-walled carbon nanotube solid phase extraction column. Background Technology

[0002] Solid phase extraction (SPE) technology is frequently used in sample processing. SPE can be used for sample separation, purification, and concentration. It can more effectively separate analytes from interfering components, reduce sample pretreatment, and simplify the operation.

[0003] During the use of solid-phase extraction columns, due to the poor sealing of the column inlet, pollutants from the outside air can easily enter the column, leading to a decrease in the purity of the target components separated and purified by the column, and consequently a decrease in the accuracy of the final liquid chromatography detection. Therefore, it is necessary to provide a single-walled carbon nanotube solid-phase extraction column to solve the above problems. Utility Model Content

[0004] The main objective of this invention is to provide a single-walled carbon nanotube solid-phase extraction column, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A single-walled carbon nanotube solid-phase extraction column includes a column body, a top mounting plate is provided at the top of the column body, and a sealing component is provided at the top of the top mounting plate; The sealing assembly includes a mounting top plate, the bottom of which is provided with a sealing plug and a groove, and a limit ring and a limit top plate are provided on one side of the top of the mounting top plate. The bottom of the limit top plate is provided with a rotating rod and a limit block, and a limit component is provided on one side of the limit ring. The limiting assembly includes a limiting side plate, and a limiting rod is provided on the side of the limiting side plate. One end of the limiting rod is provided with a mounting plate, a pulling plate and a support spring.

[0006] Preferably, the bottom of the mounting top plate is in contact with the top of the top mounting plate, and a sealing plug is installed at the bottom of the mounting top plate. The outer wall of the sealing plug is in contact with the inner wall of the top mounting plate, and a groove is formed on the outer wall of the sealing plug. There are multiple grooves, which are evenly distributed on the outer wall of the sealing plug.

[0007] Preferably, a limiting ring is fixedly connected to one side of the top of the mounting plate. There are two limiting rings, which are symmetrically distributed on both sides of the top of the mounting plate. A rotating rod is rotatably connected to the middle of the limiting ring. The rotating rod passes through the mounting plate and the top mounting plate. A plug-in groove is provided in the middle of the top of the top mounting plate. There are two plug-in grooves, which are symmetrically distributed on both sides of the top of the top mounting plate.

[0008] Preferably, a limiting top plate is bolted to the top of the rotating rod, and the bottom of the limiting top plate contacts the top of the limiting ring. A limiting block is bolted to the end of the rotating rod away from the limiting top plate, and the top of the limiting block contacts the bottom of the top mounting plate. The limiting block is correspondingly set with the insertion slot.

[0009] Preferably, a limiting side plate is fixedly connected to the side of the limiting ring, and the limiting side plate is correspondingly arranged with the limiting ring. A limiting groove is opened in the middle of the limiting side plate, and a limiting rod is inserted into the middle of the limiting groove. The limiting rod is located above the limiting top plate.

[0010] Preferably, a mounting plate is sleeved in the middle of the limiting rod, and the bottom of the mounting plate is fixedly connected to one side of the top of the limiting top plate. The mounting plate is arranged adjacent to the limiting side plate, and a pull plate is installed on the end of the limiting rod away from the limiting side plate by bolts. A support spring is fixedly connected to the side of the pull plate, and the end of the support spring away from the pull plate is fixedly connected to the side of the mounting plate. The support spring is sleeved on the outside of the limiting rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. The installation top plate and sealing plug are used to achieve a sealed connection of the column, reducing the entry of impurities in the air into the column and affecting its use. The rotating rod drives the limiting block through the insertion slot and connects to the bottom of the top mounting plate, thereby achieving a limiting connection between the installation top plate and the top mounting plate and improving the stability of the connection. 2. The supporting spring drives the limiting rod to pass through the mounting plate and insert into the middle of the limiting side plate, thereby achieving the limiting connection between the limiting top plate and the limiting ring, preventing the limiting block from causing the rotating rod to slide during use and affecting the limiting stability. Attached Figure Description

[0012] Figure 1 This is a first-view structural schematic diagram of the entire device of this utility model; Figure 2 This is a second-view structural schematic diagram of the overall device of this utility model; Figure 3 This is a schematic diagram of the sealing assembly of this utility model; Figure 4 This is a structural schematic diagram of the limiting component of this utility model.

[0013] In the diagram: 1. Column; 2. Top mounting plate; 3. Sealing assembly; 4. Mounting top plate; 5. Sealing plug; 6. Groove; 7. Limiting ring; 8. Limiting top plate; 9. Rotating rod; 10. Limiting block; 11. Insertion groove; 12. Limiting assembly; 13. Limiting side plate; 14. Mounting plate; 15. Pulling plate; 16. Limiting rod; 17. Support spring; 18. Limiting groove. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] Please see Figure 1 , Figure 2 , Figure 3 As shown, a single-walled carbon nanotube solid-phase extraction column includes a column body 1, a top mounting plate 2 is provided on the top of the column body 1, and a sealing component 3 is provided on the top of the top mounting plate 2. The sealing assembly 3 includes a mounting top plate 4. The bottom of the mounting top plate 4 is provided with a sealing plug 5 and a groove 6. A limiting ring 7 and a limiting top plate 8 are provided on one side of the top of the mounting top plate 4. A rotating rod 9 and a limiting block 10 are provided at the bottom of the limiting top plate 8. A limiting assembly 12 is provided on one side of the limiting ring 7. The bottom of the mounting top plate 4 is in contact with the top of the top mounting plate 2. The sealing plug 5 is installed at the bottom of the mounting top plate 4. The outer wall of the sealing plug 5 is in contact with the inner wall of the top mounting plate 2. A groove 6 is provided on the outer wall of the sealing plug 5. There are multiple grooves 6, which are evenly distributed on the outer wall of the sealing plug 5. A limiting ring 7 is fixedly connected to one side of the top of the mounting top plate 4. There are two limiting rings 7, which are symmetrically distributed on both sides of the top of the mounting top plate 4. A rotating rod 9 is rotatably connected to the middle of the limiting ring 7. The rotating rod 9 passes through the mounting top plate 4 and the top mounting plate 2. An insertion groove 11 is provided in the middle of the top of the top of the top mounting plate 2. There are two insertion grooves 11, which are symmetrically distributed on both sides of the top of the top mounting plate 2. The top of the rotating rod 9 is bolted to a limiting top plate 8, and the bottom of the limiting top plate 8 contacts the top of the limiting ring 7. The end of the rotating rod 9 away from the limiting top plate 8 is bolted to a limiting block 10, and the top of the limiting block 10 contacts the bottom of the top mounting plate 2. The limiting block 10 is correspondingly set with the insertion groove 11. The mounting top plate 4 and the sealing plug 5 are used to achieve a sealed connection of the column 1, reducing the entry of impurities in the air into the interior of the column 1 and affecting the use of the column 1. The rotating rod 9 drives the limiting block 10 through the insertion groove 11 and connects to the bottom of the top mounting plate 2, thereby achieving a limiting connection between the mounting top plate 4 and the top mounting plate 2 and improving the stability of the connection. Please see Figure 1 , Figure 2 , Figure 4As shown, the limiting assembly 12 includes a limiting side plate 13. A limiting rod 16 is provided on the side of the limiting side plate 13. One end of the limiting rod 16 is provided with a mounting plate 14, a pulling plate 15 and a support spring 17. The limiting ring 7 is fixedly connected to the limiting side plate 13. The limiting side plate 13 and the limiting ring 7 are correspondingly provided. A limiting groove 18 is opened in the middle of the limiting side plate 13. The limiting rod 16 is inserted into the middle of the limiting groove 18. The limiting rod 16 is located above the limiting top plate 8. A mounting plate 14 is sleeved in the middle of the limiting rod 16, and the bottom of the mounting plate 14 is fixedly connected to one side of the top of the limiting top plate 8. The mounting plate 14 is adjacent to the limiting side plate 13, and a pull plate 15 is bolted to the end of the limiting rod 16 away from the limiting side plate 13. A support spring 17 is fixedly connected to the side of the pull plate 15, and the end of the support spring 17 away from the pull plate 15 is fixedly connected to the side of the mounting plate 14. The support spring 17 is sleeved on the outside of the limiting rod 16. The supporting spring 17 drives the limiting rod 16 to pass through the mounting plate 14 and insert into the middle of the limiting side plate 13, thereby realizing the limiting connection between the limiting top plate 8 and the limiting ring 7, preventing the limiting block 10 from causing the rotating rod 9 to slide during use, which would affect the limiting stability.

[0016] It should be noted that this utility model is a single-walled carbon nanotube solid-phase extraction column. In use, the mounting plate 4, along with the sealing plug 5, is inserted into the top of the column body 1, aligning the limiting block 10 at the bottom of the mounting plate 4 with the insertion groove 11 at the top of the mounting plate 2. Pressing the mounting plate 4 causes the sealing plug 5 to insert into the column body 1. Simultaneously, the rotating rod 9 on one side of the mounting plate 4 drives the limiting block 10 through the insertion groove 11. Rotating the limiting block 10 causes it to align with the insertion groove 11 in a cross shape, thus achieving proper alignment of the mounting plate 4. 4. When the limiting connection with the top mounting plate 2 is established, the limiting top plate 8 at the top of the rotating rod 9 drives the mounting plate 14 to rotate to be adjacent to the limiting side plate 13. Pulling the pulling plate 15 causes the pulling plate 15 to drive the support spring 17 and the limiting rod 16 to be stretched away from the limiting side plate 13. After the mounting plate 14 is aligned with the limiting side plate 13, the pulling plate 15 is released, causing the support spring 17 to drive the limiting rod 16 to slide and connect inside the limiting groove 18 in the middle of the mounting plate 14, thereby achieving the limiting connection between the limiting ring 7 and the limiting top plate 8.

[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A single-walled carbon nanotube solid phase extraction cartridge comprising a cartridge body (1), characterised in that: The top of the column (1) is provided with a top mounting plate (2), and the top of the top mounting plate (2) is provided with a sealing component (3). The sealing assembly (3) includes a mounting top plate (4), the bottom of which is provided with a sealing plug (5) and a groove (6), and a limiting ring (7) and a limiting top plate (8) are provided on one side of the top of the mounting top plate (4). A rotating rod (9) and a limiting block (10) are provided at the bottom of the limiting top plate (8), and a limiting component (12) is provided on one side of the limiting ring (7). The limiting component (12) includes a limiting side plate (13), and a limiting rod (16) is provided on the side of the limiting side plate (13). One end of the limiting rod (16) is provided with a mounting plate (14), a pulling plate (15) and a support spring (17).

2. The single-walled carbon nanotube solid-phase extraction cartridge of claim 1, wherein: The bottom of the mounting plate (4) is in contact with the top of the top mounting plate (2), and a sealing plug (5) is installed at the bottom of the mounting plate (4). The outer wall of the sealing plug (5) is in contact with the inner wall of the top mounting plate (2), and a groove (6) is provided on the outer wall of the sealing plug (5). There are multiple grooves (6), which are evenly distributed on the outer wall of the sealing plug (5).

3. The single-walled carbon nanotube solid-phase extraction cartridge of claim 2, wherein: A limiting ring (7) is fixedly connected to one side of the top of the mounting plate (4). There are two limiting rings (7), which are symmetrically distributed on both sides of the top of the mounting plate (4). A rotating rod (9) is rotatably connected in the middle of the limiting ring (7). The rotating rod (9) passes through the mounting plate (4) and the top mounting plate (2). A plug-in groove (11) is provided in the middle of the top of the top mounting plate (2). There are two plug-in grooves (11), which are symmetrically distributed on both sides of the top of the top mounting plate (2).

4. The single-walled carbon nanotube solid-phase extraction cartridge of claim 3, wherein: The top of the rotating rod (9) is bolted to a limiting top plate (8), and the bottom of the limiting top plate (8) is in contact with the top of the limiting ring (7). The end of the rotating rod (9) away from the limiting top plate (8) is bolted to a limiting block (10), and the top of the limiting block (10) is in contact with the bottom of the top mounting plate (2). The limiting block (10) is correspondingly set with the insertion slot (11).

5. The single-walled carbon nanotube solid-phase extraction column according to claim 1, characterized in that: The side of the limiting ring (7) is fixedly connected to the limiting side plate (13), and the limiting side plate (13) is correspondingly set with the limiting ring (7). The limiting side plate (13) has a limiting groove (18) in the middle, and a limiting rod (16) is inserted in the middle of the limiting groove (18). The limiting rod (16) is located above the limiting top plate (8).

6. The single-walled carbon nanotube solid-phase extraction column according to claim 5, characterized in that: The limiting rod (16) is fitted with a mounting plate (14) in the middle, and the bottom of the mounting plate (14) is fixedly connected to the top side of the limiting top plate (8). The mounting plate (14) is arranged adjacent to the limiting side plate (13), and a pull plate (15) is installed on the end of the limiting rod (16) away from the limiting side plate (13) by bolts. A support spring (17) is fixedly connected to the side of the pull plate (15), and the end of the support spring (17) away from the pull plate (15) is fixedly connected to the side of the mounting plate (14). The support spring (17) is fitted on the outside of the limiting rod (16).

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