CN214019329U

CN214019329U - Solid phase extraction jar

Info

Publication number: CN214019329U
Application number: CN202023060468.XU
Authority: CN
Inventors: 宋婷; 张丽; 王喆
Original assignee: Shaanxi New Era Biotransformation Detection Co ltd
Current assignee: Shaanxi New Era Biotransformation Detection Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-08-24
Anticipated expiration: 2030-12-17

Abstract

The utility model relates to a solid phase extraction jar, it is including extraction glass jar, test-tube rack and apron, extraction glass jar cavity sets up and one end opening, the apron lid is located extraction glass jar open end, the test-tube rack place in inside the extraction glass jar, the test-tube rack includes backup pad, gag lever post and altitude mixture control subassembly, the gag lever post install in extraction glass jar inner wall, the gag lever post is provided with a plurality ofly and sets up side by side, the backup pad install in the gag lever post is kept away from one side of apron, the backup pad is located between two adjacent gag lever posts, the altitude mixture control subassembly with the backup pad is connected, is used for adjusting the gag lever post with distance between the backup pad. This application has the effect that improves the use convenience of the test-tube rack in the extraction glass jar.

Description

Solid phase extraction jar

Technical Field

The application relates to the field of extraction equipment, in particular to a solid phase extraction cylinder.

Background

Solid phase extraction is a process of extracting from a liquid sample by using an immobilized adsorbent, and is mainly suitable for purification treatment of the liquid sample and the like. After pesticide and other residual pollutants in agricultural products are extracted by an organic solvent, the extracting solution is enriched when passing through an SPE column filled with a proper adsorbent, a proper eluting agent is selected to elute and remove impurity components in the extract, a small amount of selective solvent is further used for eluting pesticides and other to-be-detected substances, and the concentrated to-be-detected substances are directly used for instrument analysis.

Chinese utility model patent with application number CN201822048622.8 discloses a solid phase extraction device. The utility model adopts the following technical scheme: a solid phase extraction device comprises an extraction mechanism consisting of an extraction glass cylinder, a cover plate, extraction small columns and a vacuum pump, and also comprises a test tube replacement turntable, wherein a driving motor for driving the test tube replacement turntable is arranged in the middle of the test tube replacement turntable, and two or three or four test tube placing racks are uniformly arranged on the periphery of the test tube replacement turntable; a waste liquid collecting bottle is arranged between the extraction glass cylinder and the vacuum pump. The utility model aims to provide a: by arranging the test tube rack turntable beside the extraction device, an operator can conveniently replace the test tube collecting liquid in the extraction device, and can timely transfer the used test tube to be processed, so that the extraction efficiency is improved; cooperate the waste liquid collecting bottle simultaneously, when to the interior evacuation of extraction device, can take the waste liquid out and concentrate the waste liquid collecting bottle in from the extraction device, further improve extraction efficiency.

For the above-mentioned related art, the inventor thinks that the test-tube rack has been placed to extraction glass jar in, and the hole size of test-tube rack in the related art is fixed, when needing to change the test tube of different capacities, must dismantle the change with whole test-tube rack, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to improve the use convenience of the test-tube rack in the extraction glass jar, this application provides a solid phase extraction jar.

The application provides a solid phase extraction jar adopts following technical scheme:

the utility model provides a solid phase extraction jar, includes extraction glass jar, test-tube rack and apron, extraction glass jar cavity sets up and one end opening, the apron lid is located extraction glass jar open end, the test-tube rack place in inside the extraction glass jar, the test-tube rack includes backup pad, gag lever post and altitude mixture control subassembly, the gag lever post install in extraction glass jar inner wall, the gag lever post is provided with a plurality ofly and sets up side by side, the backup pad install in the gag lever post is kept away from one side of apron, the backup pad is located between two adjacent gag lever posts, the altitude mixture control subassembly with the backup pad is connected, is used for adjusting the gag lever post with distance between the backup pad.

By adopting the technical scheme, the test tube rack is placed in the extraction glass cylinder for placing the test tube, and the cover plate is used for opening the extraction glass cylinder for placing and taking out the test tube and closing the extraction glass cylinder for sealing, so that the interior of the extraction glass cylinder is conveniently vacuumized; the test tube rack is provided with a plurality of limiting rods arranged side by side for limiting the test tubes, and a supporting plate is arranged below the adjacent limiting rods to support the test tubes, so that the test tubes are placed in the extraction glass cylinder; in addition, in order to realize that the test tubes of different specifications are placed in the extraction glass cylinder, the supporting plate is connected with a height adjusting assembly, and the height adjusting assembly is adapted to the test tubes of different specifications and sizes by adjusting the distance between the limiting rod and the supporting plate.

Optionally, the altitude mixture control subassembly includes threaded rod and guide bar that are parallel to each other, the threaded rod with perpendicular and threaded connection of backup pad, threaded rod one end with the extraction glass jar rotates to be connected, the threaded rod other end is worn out the apron extends to the extraction glass jar is outside, the guide bar with extraction glass jar inner wall fixed connection, the guide bar with backup pad sliding connection.

Through adopting above-mentioned technical scheme, the altitude mixture control subassembly includes threaded rod and the guide bar that is parallel to each other, and threaded rod and guide bar are perpendicular with the backup pad, threaded rod and backup pad threaded connection, guide bar and backup pad sliding connection to it is convenient to drive the backup pad along the guide bar direction removal through rotating the threaded rod, simple structure and connection.

Optionally, the cover plate is connected with a sealing element, and the threaded rod penetrates out of the cover plate from the position of the sealing element.

Through adopting above-mentioned technical scheme, the lap joint has the sealing member that supplies the threaded rod to wear out, improves the leakproofness that the threaded rod worn out apron position department, and then improves the inside leakproofness of extraction glass jar, is favorable to follow-up solid phase extraction in-process to extracting the glass jar evacuation.

Optionally, the threaded rod is worn out apron one end coaxial coupling has the handle, the handle with the threaded rod is articulated, just the handle is not more than along self axial cross-sectional diameter the diameter of threaded rod.

Through adopting above-mentioned technical scheme, the handle that apron one end connection was worn out to the threaded rod is convenient for control threaded rod and rotates, and it is coaxial and the two articulated with the threaded rod to inject the handle, and the handle is not more than the diameter of threaded rod along self axial diameter in addition, is convenient for rotate the handle to with threaded rod parallel position when taking off the apron, thereby the apron is worn out to the handle and the apron is taken off, all need dismantle the handle when not needing the installation at every turn and taking off the apron.

Optionally, a limiting groove is formed in one side, close to the limiting rod, of the supporting plate.

Through adopting above-mentioned technical scheme, being provided with of spacing groove does benefit to and carries on spacingly to the test tube, improves the stability that the test tube was placed in the backup pad.

Optionally, one side of the limiting groove close to the limiting rod is provided with an anti-slip layer.

Through adopting above-mentioned technical scheme, the skid resistant course can strengthen and the test tube between frictional resistance, improve the stability of test tube placing in the backup pad.

Optionally, the limiting rod is connected with a fastening plate, the fastening plate is fixedly connected with an expansion spring between the limiting rods, and the expansion direction of the expansion spring is perpendicular to the limiting rods and parallel to the supporting plate.

Through adopting above-mentioned technical scheme, the gag lever post has the mounting plate through expanding spring connection, and the mounting plate be provided with do benefit to the stability that improves the centre gripping to the test tube, can be simultaneously according to the position of the different diameters automatic adjustment mounting plate of test tube to adapt to not unidimensional test tube.

Optionally, the fastening plate and the telescopic rod are fixedly connected between the limiting rods, and the telescopic direction of the telescopic rod is parallel to the telescopic direction of the telescopic spring.

Through adopting above-mentioned technical scheme, the telescopic link between mounting plate and the gag lever post is favorable to leading the mounting plate removal process for the mounting plate is along removing with the perpendicular and parallel position with the backup pad of gag lever post, improves the stability of mounting plate removal process, and then improves the stability that the test tube was placed.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the test tube rack comprises a plurality of limiting rods arranged side by side for limiting the test tubes, and meanwhile, a supporting plate is arranged below the adjacent limiting rods to support the test tubes, so that the test tubes are placed in the extraction glass cylinder;

2. the anti-skid layer is connected with the surface of the limiting groove and is used for enhancing the frictional resistance between the supporting plate and the test tube and improving the stability of the test tube placed on the supporting plate;

3. the gag lever post is connected with the mounting plate through expanding spring and telescopic link, and the mounting plate be provided with and do benefit to the stability that improves the centre gripping to the test tube, can be according to the position of the different diameters automatic adjustment mounting plate of test tube simultaneously to adapt to not unidimensional test tube.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a solid phase extraction tank according to an embodiment of the present disclosure.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Description of reference numerals: 1. an extraction glass jar; 2. a test tube rack; 21. a support plate; 211. a limiting groove; 22. a limiting rod; 23. a height adjustment assembly; 231. a threaded rod; 232. a guide bar; 233. a handle; 24. an anti-slip layer; 25. a fastening plate; 26. a tension spring; 27. a telescopic rod; 3. a cover plate; 4. a seal member; 5. extracting a small column; 6. a vacuum pump.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The extraction mechanism is used for extracting a target compound in a sample and comprises a solid phase extraction cylinder, a vacuum pump 6 and an extraction column 5, wherein the vacuum pump 6 is used for vacuumizing the extraction glass cylinder 1, so that liquid in the extraction column 5 flows into the extraction glass cylinder 1 under the action of atmospheric pressure, and a test tube or other containers are placed in the extraction glass cylinder 1 for collecting the liquid.

The embodiment of the application discloses a solid phase extraction jar. Referring to fig. 1, the solid phase extraction jar includes extraction glass jar 1, and extraction glass jar 1 cavity sets up and one end opening, has placed test-tube rack 2 in the extraction glass jar 1, and extraction glass jar 1 open position lid is equipped with apron 3. The test tube rack 2 includes a support plate 21, a stopper rod 22, and a height adjusting assembly 23.

Referring to fig. 1, the limiting rod 22 is bonded to the extraction glass cylinder 1, the limiting rod 22 is parallel to the bottom wall of the extraction glass cylinder 1, the limiting rod 22 is provided with a plurality of fastening plates 25 arranged side by side, in the embodiment, 6 fastening plates are arranged on the opposite sides of the adjacent limiting rod 22, the limiting rod 22 is connected with the fastening plates 25 through an expansion spring 26 and an expansion link 27, and the expansion direction of the expansion spring 26 and the expansion link 27 is perpendicular to the limiting rod 22 and parallel to the bottom wall of the extraction glass cylinder 1. One end of the extension spring 26 and the extension rod 27 is welded to the stopper rod 22, and the other end is welded to the fastening plate 25. The extension spring 26 is sleeved on the outer circumference of the extension rod 27 in this embodiment.

Referring to fig. 1, the one side that apron 3 was kept away from to gag lever post 22 is provided with backup pad 21, and backup pad 21 is parallel with the diapire of extraction glass jar 1, and backup pad 21 installs between two adjacent gag lever posts 22, and backup pad 21 is provided with 5 in this embodiment, and two adjacent gag lever posts 22 realize spacing to the test tube with the backup pad 21 cooperation. Spacing groove 211 has all been seted up to one side that every backup pad 21 is close to apron 3, and spacing groove 211 inner wall bonds has skid resistant course 24, and skid resistant course 24 adopts the rubber pad in this embodiment to stability when improving the test tube and placing.

Referring to fig. 1 and 2, in order to facilitate the simultaneous placement of test tubes of different sizes in the extraction glass tank 1, a height adjustment assembly 23 is connected to the support plate 21, and the height adjustment assembly 23 includes a threaded rod 231 and a guide rod 232. The threaded rod 231 is perpendicular to the support plate 21 and is in threaded connection with the bottom wall of the extraction glass jar 1, one end of the threaded rod 231 is rotatably connected with the bottom wall of the extraction glass jar 1, the other end of the threaded rod passes through the cover plate 3 and is connected with the handle 233, and the handle 233 is positioned outside the extraction glass jar 1. The guide rod 232 is perpendicular to the threaded rod 231 and is connected with the support plate 21 in a sliding manner, the guide rod 232 is adhered to the extraction glass cylinder 1, and in the embodiment, the guide rod 232 penetrates through the support plate 21 to realize the sliding connection of the two. In addition, the cover plate 3 is connected with a sealing element 4, the threaded rod 231 penetrates out of the cover plate 3 from the position of the sealing element 4, and the sealing element 4 in the embodiment is a rubber ring, so that the sealing degree inside the extraction glass cylinder 1 is ensured while the rotation of the threaded rod 231 is not influenced. In order to facilitate the connection and disconnection of the cover plate 3 to and from the extraction glass vessel 1, the handle 233 is hinged to the threaded rod 231, and the diameter of the cross section of the handle 233 in the axial direction thereof is not larger than the diameter of the threaded rod 231.

The implementation principle of the solid phase extraction cylinder in the embodiment of the application is as follows: when the test tube extracting device is used, the cover plate is opened, the threaded rod is rotated to drive the supporting plate to move along the direction of the guide rod, the position of the supporting plate in the extracting glass cylinder is adjusted according to the length of the test tube, then the test tube penetrates through the two adjacent limiting rods, contacts with the fastening plate and applies force to the fastening plate in the moving process of the test tube, the telescopic spring is stressed and contracted, the test tube continues to move until the test tube is abutted against the supporting plate, and the test tube is placed; and after the test tube is placed, the cover plate is covered, and the cover plate penetrates through the threaded rod to be in butt joint with the extraction glass cylinder, so that the extraction glass cylinder is sealed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A solid phase extraction jar which characterized in that: comprises an extraction glass jar (1), a test tube rack (2) and a cover plate (3), the extraction glass jar (1) is arranged in a hollow way, one end of the extraction glass jar is opened, the cover plate (3) is covered on the opening end of the extraction glass jar (1), the test tube rack (2) is placed in the extraction glass cylinder (1), the test tube rack (2) comprises a support plate (21), a limiting rod (22) and a height adjusting component (23), the limiting rods (22) are arranged on the inner wall of the extraction glass cylinder (1), the limiting rods (22) are arranged in parallel, the supporting plate (21) is arranged on one side of the limiting rod (22) far away from the cover plate (3), the supporting plate (21) is positioned between two adjacent limiting rods (22), the height adjusting component (23) is connected with the supporting plate (21), is used for adjusting the distance between the limiting rod (22) and the supporting plate (21).

2. A solid phase extraction bowl as claimed in claim 1 wherein: height adjusting subassembly (23) are including threaded rod (231) and guide bar (232) that are parallel to each other, threaded rod (231) with backup pad (21) perpendicular and threaded connection, threaded rod (231) one end with extraction glass jar (1) rotate to be connected, threaded rod (231) other end is worn out apron (3) extend to extraction glass jar (1) outside, guide bar (232) with extraction glass jar (1) inner wall fixed connection, guide bar (232) with backup pad (21) sliding connection.

3. A solid phase extraction bowl as claimed in claim 2 wherein: the cover plate (3) is connected with a sealing element (4), and the threaded rod (231) penetrates out of the cover plate (3) from the position of the sealing element (4).

4. A solid phase extraction bowl as claimed in claim 2 wherein: threaded rod (231) wear out apron (3) one end coaxial coupling has handle (233), handle (233) with threaded rod (231) are articulated, just handle (233) are not more than along self axial cross-sectional diameter threaded rod (231) diameter.

5. A solid phase extraction bowl as claimed in claim 1 wherein: one side of the support plate (21) close to the limiting rod (22) is provided with a limiting groove (211).

6. A solid phase extraction bowl according to claim 5 wherein: and an anti-skid layer (24) is arranged on one side, close to the limiting rod (22), of the limiting groove (211).

7. A solid phase extraction bowl as claimed in claim 1 wherein: the limiting rod (22) is connected with a fastening plate (25), the fastening plate (25) is fixedly connected with an expansion spring (26) between the limiting rods (22), and the expansion direction of the expansion spring (26) is perpendicular to the limiting rods (22) and parallel to the supporting plate (21).

8. A solid phase extraction bowl as claimed in claim 7 wherein: the mounting plate (25) with fixedly connected with telescopic link (27) between gag lever post (22), the flexible direction of telescopic link (27) with the flexible direction of expanding spring (26) is parallel.