CN211885508U

CN211885508U - Portable environmental pollutant solid phase extraction device

Info

Publication number: CN211885508U
Application number: CN202020260214.3U
Authority: CN
Inventors: 白秀芝; 周海旭; 苏同超; 陈军; 张裕平
Original assignee: Henan Institute of Science and Technology
Current assignee: Henan Institute of Science and Technology
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-11-10
Anticipated expiration: 2030-03-05

Abstract

The utility model discloses a portable environmental pollutant solid phase extraction device relates to solid phase extraction equipment field, including needle tubing, box body, locating plate, connecting pipe, lid and second screwed pipe, the box body upper surface is fixed with the lid, the lid upside is provided with a plurality of connecting pipes, and is a plurality of the connecting pipe lower extreme all runs through the lid upper surface and extends to in the box body, connecting pipe upper end and lower extreme all are connected with first screwed pipe and second screwed pipe respectively through the screw thread, first screwed pipe upside all is provided with the needle tubing, the needle tubing lower extreme all extends to in the first screwed pipe. The utility model discloses a design of combination formula is convenient for clean liquid circulation pipeline, and convenient to use avoids producing the influence to the extraction process.

Description

Portable environmental pollutant solid phase extraction device

Technical Field

The utility model relates to a solid phase extraction equipment field especially relates to a portable environmental pollutant solid phase extraction device.

Background

Solid-Phase Extraction (SPE) is a sample pretreatment technology developed in recent years, is developed by combining liquid-Solid Extraction and column liquid chromatography, is mainly used for separating, purifying and concentrating samples, can improve the recovery rate of analytes compared with the traditional liquid-liquid Extraction method, more effectively separates the analytes from interfering components, reduces the sample pretreatment process, and is simple to operate, time-saving and labor-saving.

The needle cylinder and the extraction column in the existing environment pollutant solid-phase extraction device are generally connected through the universal joint, and the universal joint and the box cover are integrally injection-molded, so that liquid flowing through the universal joint can not be attached to the inner surface of the universal joint due to disassembly and assembly, the cleaning is inconvenient, the test data is inaccurate, and the use is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a portable solid phase extraction device for environmental pollutants.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a portable environmental pollutant solid phase extraction device, includes needle tubing, box body, locating plate, connecting pipe, lid and second screwed pipe, the box body upper surface is fixed with the lid, the lid upside is provided with a plurality of connecting pipes, and is a plurality of the connecting pipe lower extreme all runs through the lid upper surface and extends to in the box body, connecting pipe upper end and lower extreme all are connected with first screwed pipe and second screwed pipe respectively through the screw thread, first screwed pipe upside all is provided with the needle tubing, the needle tubing lower extreme all extends to in the first screwed pipe.

Preferably, the lower surface of the inner part of the box body is provided with a positioning plate, four corners of the upper surface of the positioning plate are respectively fixed with a connecting rod, the upper ends of the connecting rods are jointly fixed with a limiting plate, the upper surface of the positioning plate is uniformly provided with a groove, and the upper surface of the limiting plate is uniformly provided with a placing hole.

Preferably, the locating plate lower surface four corners department has all seted up the spacing groove, box body inside upper surface four corners department all is provided with the locating piece, the locating piece is installed respectively in the constant head tank.

Preferably, the connecting groove is formed in the lower surface of the box cover, and the upper end of the box body is located in the connecting groove.

Preferably, a vacuum tube is arranged on the right side of the box cover, the left end of the vacuum tube extends into the box body, and a pressure gauge is arranged on the vacuum tube.

Preferably, first screwed pipe and connecting pipe are the tubulose design, the processing of the interior annular side of connecting pipe has the thread groove, the outer annular side of first screwed pipe and second screwed pipe all processes and has the screw thread with thread groove assorted, connecting pipe and second screwed pipe all can dismantle with the connecting pipe through the screw thread and be connected.

Preferably, the left end and the right end of the second threaded pipe positioned at the lower side of the connecting pipe are respectively fixed with a lug.

The utility model has the advantages that: be convenient for fix the extraction post through limiting plate, connecting rod and locating plate, can dismantle the setting through the screw thread of first screwed pipe and second screwed pipe and connecting pipe, then conveniently dismantle the washing, avoid liquid to adhere to simultaneously.

Through the hollow design of the first threaded pipe and the second threaded pipe in the connecting pipe, a liquid flow channel is formed after the first threaded pipe and the second threaded pipe are butted, and the liquid in the needle tube can flow through the liquid flow channel conveniently.

The utility model discloses a design of combination formula is convenient for clean liquid circulation pipeline, and convenient to use avoids producing the influence to the extraction process.

Drawings

Fig. 1 is a front view of a portable solid-phase extraction device for environmental pollutants according to the present invention.

Fig. 2 is a schematic cross-sectional view of a connecting pipe in a portable solid-phase extraction apparatus for environmental pollutants according to the present invention.

Fig. 3 is a top view of a limiting plate in the portable solid-phase extraction apparatus for environmental pollutants.

Reference numbers in the figures: the needle tube 1, the first screwed pipe 2, the connecting tube 3, the box cover 4, the second screwed pipe 5, the vacuum tube 6, the connecting rod 7, the box body 8, the bump 9, the pressure gauge 10, the locating plate 11, the limiting plate 12 and the placing hole 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, including needle tubing 1, box body 8, locating plate 11, connecting pipe 3, lid 4 and second screwed

pipe

5, 8 fixed surface of box body have

lid

4, 4 upsides of lid are provided with a plurality of connecting

pipes

3, 3 lower extremes of a plurality of connecting pipes all run through 4 upper surfaces of lid and extend to in the

box body

8, 3 upper ends of connecting pipe and lower extreme all are connected with first screwed pipe 2 and second screwed pipe 5 respectively through the screw thread, 2 upsides of first screwed pipe all are provided with

needle tubing

1, 1 lower extremes of needle tubing all extend to in the first screwed pipe 2.

The lower surface of the inner part of the box body 8 is provided with a positioning plate 11, four corners of the upper surface of the positioning plate 11 are all fixed with connecting rods 7, the upper ends of the four connecting rods 7 are jointly fixed with a limiting plate 12, the upper surface of the positioning plate 11 is evenly provided with a groove, the upper surface of the limiting plate 12 is evenly provided with a placing hole 13 for fixing an extraction column conveniently, four corners of the lower surface of the positioning plate 11 are all provided with a limiting groove, the four corners of the inner part of the box body 8 are all provided with a positioning block which is respectively arranged in a positioning groove for fixing the positioning plate 11, the lower surface of the box cover 4 is provided with a connecting groove, the upper end of the box body 8 is positioned in the connecting groove, so that the box cover 4 and the box body 8 form a closed space, the right side of the box cover 4, the inner annular side surface of the connecting pipe 3 is provided with a thread groove, the outer annular side surfaces of the first thread pipe 2 and the second thread pipe 5 are provided with threads matched with the thread groove, the connecting pipe 3 and the second thread pipe 5 are detachably connected with the connecting pipe 3 through threads, and the left end and the right end of the second thread pipe 5 positioned at the lower side of the connecting pipe 3 are respectively fixed with a lug 9, so that the second thread pipe 5 can be screwed conveniently.

The working principle is as follows: the device is when using, the user passes earlier the extraction post and places in the recess of placing hole 13 at locating plate 11 upper surface, then with lid 4 block on box body 8, install the lower extreme of needle tubing 1 in first screwed pipe 2 again, liquid in the needle tubing 1 passes in the liquid circulation passageway inflow extraction post that first screwed pipe 2 and second screwed pipe 5 are constituteed, thereby avoid liquid to adhere to, treat to pour into the completion back, rotate first screwed pipe 2 and second screwed pipe 5, make first screwed pipe 2 and second screwed pipe 5 break away from connecting pipe 3 respectively, wash the inner wall of first screwed pipe 2 and second screwed pipe 5 again, thereby avoid producing the influence to the extraction process.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a portable environmental pollutant solid phase extraction device, includes needle tubing (1), box body (8), locating plate (11), connecting pipe (3), lid (4) and second screwed pipe (5), its characterized in that, box body (8) upper surface is fixed with lid (4), lid (4) upside is provided with a plurality of connecting pipes (3), and is a plurality of connecting pipe (3) lower extreme all runs through lid (4) upper surface and extends to in box body (8), connecting pipe (3) upper end and lower extreme all are connected with first screwed pipe (2) and second screwed pipe (5) respectively through the screw thread, first screwed pipe (2) upside all is provided with needle tubing (1), needle tubing (1) lower extreme all extends to in first screwed pipe (2).

2. The portable solid-phase extraction device for environmental pollutants according to claim 1, wherein a positioning plate (11) is arranged on the lower surface inside the box body (8), the four corners of the upper surface of the positioning plate (11) are respectively fixed with a connecting rod (7), the upper ends of the four connecting rods (7) are jointly fixed with a limiting plate (12), the upper surface of the positioning plate (11) is uniformly provided with a groove, and the upper surface of the limiting plate (12) is uniformly provided with a placing hole (13).

3. The portable solid-phase extraction device for environmental pollutants according to claim 1, wherein the four corners of the lower surface of the positioning plate (11) are provided with limiting grooves, the four corners of the inner upper surface of the box body (8) are provided with positioning blocks, and the positioning blocks are respectively installed in the positioning grooves.

4. The portable solid-phase extraction device for environmental pollutants as claimed in claim 1, wherein the lower surface of the box cover (4) is provided with a connecting groove, and the upper end of the box body (8) is positioned in the connecting groove.

5. The portable solid-phase extraction device for environmental pollutants according to claim 1, wherein a vacuum tube (6) is arranged at the right side of the box cover (4), the left end of the vacuum tube (6) extends into the box body (8), and a pressure gauge (10) is arranged on the vacuum tube (6).

6. A portable solid-phase extraction apparatus for environmental pollutants according to claim 1, wherein the first threaded pipe (2) and the connecting pipe (3) are both of tubular design, the inner annular side surface of the connecting pipe (3) is processed with a thread groove, the outer annular side surfaces of the first threaded pipe (2) and the second threaded pipe (5) are processed with a thread matching with the thread groove, and the connecting pipe (3) and the second threaded pipe (5) are detachably connected with the connecting pipe (3) through threads.

7. A portable solid phase extraction apparatus for environmental pollutants as in claim 1, wherein the left end and the right end of the second threaded pipe (5) at the lower side of the connecting pipe (3) are fixed with a lug (9).