CN217981371U

CN217981371U - Improved generation solid phase extraction device

Info

Publication number: CN217981371U
Application number: CN202222096163.7U
Authority: CN
Inventors: 蒋媛; 李谦; 张学玲; 杨建兴; 沈鑫; 党祎苗; 牛国飞
Original assignee: Ningxia Hui Autonomous Region Food Inspection Research Institute
Current assignee: Ningxia Hui Autonomous Region Food Inspection Research Institute
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-12-06
Anticipated expiration: 2032-08-10

Abstract

The utility model discloses an improved generation solid phase extraction device, the on-line screen storage device comprises a base, base top fixedly connected with extraction box, the extraction box top can be dismantled and be connected with the extraction case lid, a plurality of extraction posts are installed on extraction case lid top, the extraction post bottom stretches into in the extraction box, and fixedly connected with catheter, the inside bottom of extraction box is provided with the collection subassembly, the catheter is located collect the subassembly top, and with the collection subassembly corresponds the setting, be provided with adjusting part on the extraction box, the collection subassembly passes through adjusting part with extraction box sliding connection, be provided with the regulator on the extraction box. The utility model discloses a collection is separated to waste liquid and sample among the food detection solid phase extraction, and waste liquid discharge and sample collection simple operation need not frequently to open the extraction case lid and bleed the pressure release, have improved solid phase extraction efficiency.

Description

Improved generation solid phase extraction device

Technical Field

The utility model relates to a food detection technology field especially relates to an improved generation solid phase extraction device.

Background

The solid phase extraction is a sample pretreatment technology developed in recent years, is developed by combining a liquid-solid extraction column and a liquid chromatography technology, 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, is simple to operate, saves time and labor, is widely applied to the field of food detection, and becomes an indispensable part in food detection.

Chinese patent publication No.: CN216816636U, name: the utility model provides an improved generation solid phase extraction device, its discloses an improved generation solid phase extraction device, through the deflection of control water-stop sheet for the water-stop sheet makes a round trip to switch between the position that corresponds waste liquid case and collect the test tube, conveniently carries out the solid phase extraction more. But when the water-stop sheet is deflected and switched, the residual waste liquid on the water-stop sheet is easy to enter into the collection test tube, so that the analysis result is influenced, and meanwhile, the waste liquid and the sample are inconvenient to collect and extract.

Therefore, there is a need for an improved solid phase extraction apparatus to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an improved generation solid phase extraction device to solve the problem that above-mentioned prior art exists.

In order to achieve the above object, the utility model provides a following scheme: the utility model provides an improved generation solid phase extraction device, the on-line screen storage device comprises a base, base top fixedly connected with extraction box, the extraction box top can be dismantled and be connected with the extraction case lid, a plurality of extraction posts are installed on extraction case lid top, the extraction post bottom stretches into in the extraction box, and fixedly connected with catheter, the inside bottom of extraction box is provided with the collection subassembly, the catheter is located collect the subassembly top, and with the collection subassembly corresponds the setting, be provided with adjusting part on the extraction box, the collection subassembly passes through adjusting part with extraction box sliding connection, be provided with the regulator on the extraction box.

Preferably, the collection assembly comprises a support groove, the support groove is internally provided with three baffles which are fixedly connected with at equal intervals along the axial direction, the support groove is divided into two collecting grooves and two test tube placing grooves by three baffles, the two collecting grooves and the two test tube placing grooves are arranged in a staggered mode, a test tube placing rack is arranged in each test tube placing groove, a plurality of test tubes are placed on the test tube placing rack, the collecting grooves and the test tubes are all arranged corresponding to the liquid guide tubes, and the support groove is in transmission connection with the adjusting assembly.

Preferably, the adjusting assembly comprises an adjusting bolt rotatably connected to the bottom of the side wall of the extraction box body, a threaded hole is formed in one side, close to the adjusting bolt, of the support groove, and the adjusting bolt extends into the extraction box body and is in threaded connection with the threaded hole.

Preferably, a drain hole is formed in the bottom end of the collecting tank, a collecting cavity is formed in the supporting tank bottom plate, the drain hole is communicated with the collecting cavity, the bottom end of the inner portion of the collecting cavity is obliquely arranged, a water outlet is formed in the bottom of the side wall of the collecting tank, the water outlet is communicated with the collecting cavity and is located at the lowest point of the collecting cavity, and the water outlet is communicated with the outer side of the extraction tank body through a pipeline.

Preferably, the pipeline is provided with a valve.

Preferably, be provided with the backup pad in the test tube standing groove, the backup pad is located test tube placing rack top, just the backup pad bottom with test tube placing rack top butt, a plurality of round holes have been seted up in the backup pad, the downthehole fixedly connected with funnel of round, the funnel top with the catheter corresponds the setting, the funnel bottom stretches into in the test tube.

Preferably, a plurality of fixed blocks are arranged on the inner side wall of the extraction box body at equal intervals along the circumferential direction, a transverse plate is arranged on each fixed block, a plurality of through holes are formed in the transverse plate, and the bottom end of the liquid guide pipe penetrates through the through holes to be arranged corresponding to the funnel.

The utility model discloses a following technological effect: the utility model provides a pair of improved generation solid phase extraction device, it removes to support the groove through fastening bolt control, the switching of collecting vat and test tube standing groove position has been realized, the collection of waste liquid and the collection of sample in the solid phase extraction have been realized, need not open the device and carry out the change or the position control of collecting vat and test tube, the solid phase extraction efficiency that food detected has been improved, the separation of waste liquid and sample has been guaranteed simultaneously, avoid taking place to mix and influence the testing result, need not open the extraction case lid simultaneously, the accessible pipe discharges the waste liquid, it overflows when having avoided the waste liquid to fill, avoided simultaneously carrying out frequent bleeding and pressure release through the regulator, the solid phase extraction efficiency that food detected has further been guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic view of the internal side structure of the device of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the front structure inside the device of the present invention;

FIG. 4 is a schematic view of the structure of the cross plate top surface of the present invention;

wherein, 1, a base; 2. an extraction box body; 3. an extraction box cover; 4. an extraction column; 5. a catheter; 6. a support groove; 7. a baffle plate; 8. collecting tank; 9. a test tube placing groove; 10. placing a test tube rack; 11. a test tube; 12. a drain hole; 13. a water outlet; 14. adjusting the bolt; 15. a support plate; 16. a funnel; 17. a transverse plate.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The utility model provides an improved generation solid phase extraction device, the on-line screen storage device comprises a

base

1, 1 top fixedly connected with extraction box 2 of base, 2 tops of extraction box can be dismantled and be connected with extraction case lid 3, a plurality of extraction posts 4 are installed on 3 tops of extraction case lid, 4 bottoms of extraction posts stretch into in the extraction box 2, and fixedly connected with

catheter

5, 2 inside bottoms of extraction box are provided with the collection subassembly, catheter 5 is located the collection subassembly top, and correspond the setting with the collection subassembly, be provided with adjusting part on the extraction box 2, the collection subassembly passes through adjusting part and 2 sliding connection of extraction box, be provided with the pressure regulating device on the extraction box 2, do not mark in the pressure regulating device picture, the manometer that the pressure regulating device was commonly used among the prior art solid phase extraction, relief valve and air pump, the air pump passes through connecting pipe and 2 intercommunications of extraction box, be used for adjusting the inside pressure of extraction box 2, the manometer is used for surveing extraction box pressure, the relief valve is used for carrying out the pressure to 2 insides of extraction box.

Further optimization scheme, in order to realize the collection to solid phase extraction in-process waste liquid and sample, collect the subassembly including supporting groove 6, the bottom and the both sides wall that support groove 6 respectively with the inside bottom and the both sides wall sliding contact of extraction box 2, support the three baffle 7 of equidistant fixedly connected with of edge axial in the groove 6, support groove 6 and separate into two collecting vats 8 and two test tube standing groove 9 through three baffle 7, two collecting vats 8 and two test tube standing groove 9 crisscross settings, collecting vat 8 is used for collecting the waste liquid of solid phase extraction in-process, be provided with test tube rack 10 in test tube standing groove 9, test tube rack 10 places in test tube standing groove 9, test tube rack 10's size and test tube standing groove 9 looks adaptation, a plurality of test tubes 11 have been placed on test tube rack 10, test tube 11 is used for collecting the sample, collecting vat 8 and test tube 11 all correspond the setting with catheter 5, support groove 6 is connected with the adjusting part transmission.

Further optimization scheme, in order to realize the regulation to supporting groove 6, adjusting part includes and rotates the adjusting bolt 14 of connecting in extraction box 2 lateral wall bottom through the bearing frame, supporting groove 6 is close to one side of adjusting bolt 14 and has seted up threaded hole, adjusting bolt 14 stretches into in the extraction box 2, and with screw hole threaded connection, adjust its degree of depth at screw hole internal thread connection through rotating adjusting bolt 14, it slides at the inside bottom of extraction box 2 to drive supporting groove 6, realize supporting groove 6's removal regulation, thereby adjust the position of collecting vat 8 and test tube standing groove 9, the realization is to the waste liquid, the collection of sample.

Further optimization scheme, in order to realize the discharge to the inside waste liquid of collecting vat 8, wash port 12 has been seted up to 8 bottoms of collecting vat, support 6 bottom plates of groove and have seted up the collection chamber, wash port 12 and collection chamber intercommunication, the inside bottom slope setting of collection chamber, delivery port 13 has been seted up to 8 lateral walls bottoms of collecting vat, delivery port 13 and collection chamber intercommunication, and be located and collect the chamber minimum, delivery port 13 passes through pipeline and 2 outside intercommunication of extraction box, the waste liquid passes through wash port 12 and gets into the collection intracavity, slope flow to delivery port 13 and pass through the pipeline discharge, in order to guarantee the connection of pipeline and collecting vat 8 simultaneously, delivery port 13 fixedly connected with bellows, the discharge port has been seted up to 2 lateral walls bottoms of extraction box, bellows and the fixed intercommunication of outlet, the outlet is fixed with the pipe.

Further optimization scheme for realize the discharge control of waste liquid, installs the valve on the pipeline, and the discharge of valve control waste liquid is avoided the waste liquid to flow in test tube 11 from collecting vat 8 when full, has avoided the waste liquid to spill over to extraction box 2 when full simultaneously, extracts the waste liquid when having avoided the air pump to bleed and causes the air pump to damage.

Further optimization scheme, in order to guarantee the stability that solid phase extraction in-process sample flows in test tube 11, be provided with backup pad 15 in the test tube standing groove 9, backup pad 15 is located test tube rack 10 top, and backup pad 15 bottom and test tube rack 10 top butt, a plurality of round holes have been seted up in the backup pad 15, fixedly connected with funnel 16 in the round hole, funnel 16 is conical, 16 top opening part of funnel corresponds the setting with

catheter

5, 16 bottoms of funnel stretch into in the test tube 11, collect the area through increasing, guaranteed that the sample is collected to test tube 11 smoothly.

Further optimization scheme, in order to further guarantee the stable collection of sample, be provided with a plurality of fixed blocks along circumference equidistant on 2 inside walls of extraction box, be provided with diaphragm 17 on the fixed block, a plurality of through-holes have been seted up on diaphragm 17, the through-hole is passed to catheter 5 bottom and funnel 16 corresponds the setting, catheter 5 adopts the plastics material more, avoid catheter 5 to take place the bending, correspond with funnel 16 in the through-hole through spacing catheter 5, further guarantee the stability of sample collection, the stability of waste liquid collection has also been guaranteed simultaneously, avoid the waste liquid because the crooked inflow of catheter 5 is to test tube 11 in.

The utility model provides an improved generation solid phase extraction device, place test tube placing rack 10 that will place test tube 11 when using in test tube placing slot 9, backup pad 15 is placed in test tube placing slot 9 and with test tube placing rack 10 butt, funnel 16 bottom stretches into in test tube 11, place diaphragm 17 on the supporting shoe of 2 inner walls of extraction box, extraction case lid 3 lid is on extraction box 2, make the catheter 5 bottom pass the through-hole on diaphragm 17, drive through adjusting bolt 14 and support groove 6 and remove, make collecting vat 8, funnel 16 corresponds with catheter 5, the realization is to solid phase extraction in-process (activation, the proof, process such as washing) waste liquid, (extraction) the collection of sample, when the waste liquid is collected more, discharge through the valve control waste liquid, through taking out test tube 11 on test tube placing rack 10 after the sample collection is accomplished, detect the sample.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides an improved generation solid phase extraction device, a serial communication port, includes base (1), base (1) top fixedly connected with extraction box (2), extraction box (2) top can be dismantled and is connected with extraction case lid (3), a plurality of extraction post (4) are installed on extraction case lid (3) top, extraction post (4) bottom is stretched into in the extraction box (2), and fixedly connected with catheter (5), the inside bottom of extraction box (2) is provided with collects the subassembly, catheter (5) are located collect the subassembly top, and with collect the subassembly and correspond the setting, be provided with adjusting part on the extraction box (2), collect the subassembly and pass through adjusting part with extraction box (2) sliding connection, be provided with the pressure regulating device on the extraction box (2).

2. An improved solid phase extraction apparatus as defined in claim 1, wherein: collect the subassembly including supporting groove (6), support three baffle (7) of equidistant fixedly connected with of axial in groove (6), it is three to support groove (6) baffle (7) are separated into two collecting grooves (8) and two test tube standing grooves (9), two collecting groove (8) and two test tube standing grooves (9) crisscross the setting, be provided with test tube placing rack (10) in test tube standing groove (9), a plurality of test tubes (11) have been placed on test tube placing rack (10), collecting groove (8) with test tube (11) all with catheter (5) correspond the setting, support groove (6) with the regulating assembly transmission is connected.

3. An improved solid phase extraction apparatus as defined in claim 2, wherein: the adjusting assembly comprises an adjusting bolt (14) which is rotatably connected to the bottom of the side wall of the extraction box body (2), a threaded hole is formed in one side, close to the adjusting bolt (14), of the support groove (6), and the adjusting bolt (14) extends into the extraction box body (2) and is in threaded connection with the threaded hole.

4. An improved solid phase extraction apparatus as defined in claim 2, wherein: the bottom end of the collecting tank (8) is provided with a drain hole (12), a collecting cavity is formed in the bottom plate of the supporting tank (6), the drain hole (12) is communicated with the collecting cavity, the bottom end of the inner part of the collecting cavity is obliquely arranged, a water outlet (13) is formed in the bottom of the side wall of the collecting tank (8), the water outlet (13) is communicated with the collecting cavity and is positioned at the lowest point of the collecting cavity, and the water outlet (13) is communicated with the outer side of the extraction box body (2) through a pipeline.

5. An improved solid phase extraction apparatus as defined in claim 4, wherein: and a valve is arranged on the pipeline.

6. An improved solid phase extraction apparatus as defined in claim 2, wherein: be provided with backup pad (15) in test tube standing groove (9), backup pad (15) are located test tube placement rack (10) top, just backup pad (15) bottom with test tube placement rack (10) top butt, a plurality of round holes have been seted up on backup pad (15), the downthehole fixedly connected with funnel (16) of round hole, funnel (16) top with catheter (5) correspond the setting, funnel (16) bottom is stretched into in test tube (11).

7. An improved solid phase extraction apparatus as set forth in claim 6, wherein: a plurality of fixed blocks are arranged on the inner side wall of the extraction box body (2) at equal intervals along the circumferential direction, a transverse plate (17) is arranged on each fixed block, a plurality of through holes are formed in the transverse plate (17), and the bottom end of the liquid guide pipe (5) penetrates through the through holes to be arranged corresponding to the funnel (16).