CN212854734U - Solid phase extraction device - Google Patents

Abstract

The utility model discloses a solid phase extraction device, including box and end cover, the box downside is fixed with the protection base, and is provided with the blow off pipe in protection base lower extreme middle part, the end cover is connected on the box top, and is provided with the external screw thread outside the end cover lower extreme, the end cover inner wall is connected with the sealing washer, and is fixed with the handle in end cover both ends middle part, end cover upside left end is connected with the vacuum exhaust tube, and vacuum exhaust tube upper end middle part is fixed with the double-screw bolt. This solid phase extraction device is provided with the sealing washer, and the sealing washer is flexible structure, and the sealing washer of connecting the mutual laminating of face is connected closely with the end cover, combines stably, and the separation end cover that can be fine and the gap of box being connected promote sealed degree, further guarantees inside gas tightness, increases the firm degree that end cover and box are connected simultaneously to flexible sealing washer can improve both safety levels in end cover and box screw thread revolve the connecing, reduces wearing and tearing, guarantees both and connect inseparable degree.

Description

Solid phase extraction device

Technical Field

The utility model relates to a solid phase extraction technical field specifically is a solid phase extraction device.

Background

Solid phase extraction is a sample pretreatment developed in recent yearsPhysical technology 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 and more effectively combine the analytes with interference compared with the traditional liquid-liquid extraction methodComponentsThe separation and sample pretreatment processes are reduced, the operation is simple, time-saving and labor-saving, and the method is widely applied to the fields of medicines, foods, environments, commodity inspection, chemical engineering and the like.

Solid phase extraction device on the market is not enough to holistic sealed degree, can't accurately carry out the evacuation to inside, influences normal solid phase extraction to stain to inside is difficult to the clearance, for this reason, we provide a solid phase extraction device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a solid phase extraction device to the solid phase extraction device on the market that proposes in solving above-mentioned background is not enough to holistic sealed degree, can't be accurate carries out the evacuation to inside, influences normal solid phase extraction, and is difficult to the problem of clearance to inside spot.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a solid phase extraction device, includes box and end cover, the box downside is fixed with the protection base, and protection base lower extreme middle part is provided with the blow off pipe, the end cover is connected on the box top, and the end cover lower extreme outside is provided with the external screw thread, end cover inner wall is connected with the sealing washer, and end cover both ends middle part is fixed with the handle, end cover upside left end is connected with the vacuum exhaust tube, and vacuum exhaust tube upper end middle part is fixed with the double-screw bolt, end cover upside right-hand member is provided with the connecting seat, and is fixed with the vacuum meter on the connecting seat, the end cover middle part is connected with the post pipe, and post pipe downside distributes and have the collecting pipe, box inner wall middle.

Preferably, the box body and the protection base are of an integrated structure, and the protection base is in a concave shape.

Preferably, the structural size of the outer opening of the end cover is matched with that of the inner opening of the box body, and the end cover and the box body form threaded screwing through external threads.

Preferably, the outer end connecting surface of the sealing ring is attached to the inner opening connecting surface of the end cover, and the sealing ring is of a flexible structure.

Preferably, the column tubes penetrate through the middle of the end cover, and the column tubes are distributed in the middle of the end cover at equal intervals.

Preferably, the test tube clamps and the positioning frame are distributed in parallel, and the test tube clamps and the collecting tube are in a semi-surrounding structure.

Compared with the prior art, the beneficial effects of the utility model are that: the solid phase extraction device is provided with the box body and the end cover, the connection firmness degree between the integrated box body and the protective base is increased, the integrated box body and the protective base can act together when in receiving and resisting pressure, the stress is balanced, the box body is stably installed, the compression resistance and the bearing capacity of the protective base are increased, the practicability is increased, the protective base is in an arch bridge shape, the compression resistance can be dispersed when in stress, the bearing effect is further increased, the stability of the bottom is ensured, meanwhile, the materials are saved, the cost is reduced, the installation of a drain pipe is facilitated, and stains inside the box body are discharged;

the external threads form threaded screwing, the structural sizes are matched with each other, the end cover screwed by the threads is tightly connected with the box body, the airtightness is good, the internal tightness can be ensured, the internal working environment is ensured to be stable, meanwhile, the end cover screwed by the threads and the box body are convenient to disassemble, the inside of the box body can be conveniently cleaned and maintained, and the using effect is improved;

the sealing washer of connecting the face of laminating each other is connected closely with the end cover, combines stably, and the separation end cover that can be fine promotes sealed degree with the gap that the box is connected, further guarantees inside gas tightness, increases the firm degree that end cover and box are connected simultaneously to flexible sealing ring can improve both safety levels in end cover and box screw thread revolve the connecing, reduces wearing and tearing, guarantees both and connects inseparable degree.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the bottom structure of the end cap of the present invention;

fig. 3 is a schematic view of the overlooking structure of the positioning frame of the present invention.

In the figure: 1. a box body; 2. a protective base; 3. a blow-off pipe; 4. an end cap; 5. an external thread; 6. a seal ring; 7. a handle; 8. a vacuum exhaust tube; 9. a stud; 10. a connecting seat; 11. a vacuum gauge; 12. a column tube; 13. a positioning frame; 14. a test tube clamp; 15. and collecting the tubes.

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.

Referring to fig. 1-3, the present invention provides a technical solution: a solid phase extraction device comprises a box body 1, a protective base 2, a blow-off pipe 3, an end cover 4, external threads 5, a sealing ring 6, a handle 7, a vacuum exhaust pipe 8, a stud 9, a connecting seat 10, a vacuum meter 11, a column pipe 12, a positioning frame 13, a test tube clamp 14 and a collecting pipe 15, wherein the protective base 2 is fixed at the lower side of the box body 1, the blow-off pipe 3 is arranged in the middle of the lower end of the protective base 2, the box body 1 and the protective base 2 are in an integrated structure, the protective base 2 is in a concave shape, the connection firmness between the integrated box body 1 and the protective base 2 is increased, the box body and the protective base can act together when bearing and resisting pressure, the stress is balanced, the box body 1 is stably installed, the pressure resistance and the bearing capacity of the protective base 2 are increased, the practicability is increased, the protective base 2 is in an arch bridge shape, the pressure resistance, the bottom is ensured to be stable, meanwhile, the material is saved, the cost is reduced, the installation of the blow-off pipe 3 is facilitated, and the stain in the box body 1 is discharged;

the end cover 4 is connected to the upper top end of the box body 1, the outer side of the lower end of the end cover 4 is provided with the external thread 5, the structural size of the external opening of the end cover 4 is matched with the structural size of the internal opening of the box body 1, the end cover 4 and the box body 1 form a thread screwed connection through the external thread 5, the structural sizes are matched with each other, the end cover 4 screwed with the thread is tightly connected with the box body 1, the airtightness is good, internal tightness can be guaranteed, the working internal environment is stable, meanwhile, the end cover 4 screwed with the thread is convenient to disassemble from the box body 1, the inside can be cleaned and maintained conveniently;

the inner wall of the end cover 4 is connected with a sealing ring 6, handles 7 are fixed in the middle of two ends of the end cover 4, the outer end connecting surface of the sealing ring 6 is mutually attached to the inner opening connecting surface of the end cover 4, the sealing ring 6 is of a flexible structure, the sealing ring 6 with the connecting surfaces mutually attached is tightly connected with the end cover 4, the combination is stable, a gap between the end cover 4 and the box body 1 can be well blocked, the sealing degree is improved, the internal air tightness is further ensured, the connecting firmness degree between the end cover 4 and the box body 1 is increased, the safety degree of the flexible sealing ring 6 can be improved in the threaded screwing connection between the end cover 4 and the box body 1, the;

the left end of the upper side of the end cover 4 is connected with a vacuum extraction pipe 8, the middle part of the upper end of the vacuum extraction pipe 8 is fixed with a stud 9, the right end of the upper side of the end cover 4 is provided with a connecting seat 10, the upper end of the connecting seat 10 is fixed with a vacuum meter 11, the middle part of the end cover 4 is connected with a column pipe 12, a collecting pipe 15 is distributed at the lower side of the column pipe 12, the column pipe 12 penetrates through the middle part of the end cover 4 and is distributed at equal intervals, the column pipe 12 penetrating through the middle part of the end cover 4 is a medium for realizing the internal and external regulation of the box body 1, the column pipe 12 is a basic condition for carrying out solid-phase extraction on a separated object, the column pipes 12 distributed at equal intervals are used for uniformly and fully extracting;

the middle part of the inner wall of the box body 1 is provided with a positioning frame 13, and the bottom end in the box body 1 is connected with a test tube clamp 14, the test tube clamp 14 and the positioning frame 13 are in parallel distribution, and the test tube clamp 14 and the collecting tube 15 are in a half-surrounding structure, the position of the limiting collecting tube 15 which can be fine of the test tube clamp 14 and the positioning frame 13 in parallel distribution is ensured, the collecting tube 15 is ensured to be accurately and stably connected with the column tube 12, the collecting tube 15 is enabled to be positioned and the extraction liquid is accurately received in the solid-phase extraction process, the finished liquid is convenient to collect, the position of the collecting tube 15 is firmly clamped and fixed through the test tube clamp 14, the installation stability of the test tube clamp 14 is increased.

The working principle is as follows: for the solid phase extraction device, firstly, liquid extracting agents such as adsorbent and the like are dripped into a column tube 12, then, an industrial or dissolved solid sample to be extracted is placed into the column tube 12, then, the interior is vacuumized through a stud 9, the vacuum condition in the interior is observed through a vacuum meter 11 to be pressurized, an extraction product liquid is extruded by force and dripped into a collecting tube 15 through the column tube 12 to be collected, the end cover 4 is manually screwed down, the structural size is mutually matched, the end cover 4 screwed with the end cover is tightly connected with a box body 1, the tightness is good, the internal tightness can be ensured, the working internal environment is stable, meanwhile, the end cover 4 screwed with the end cover 1 is convenient to disassemble, the interior is convenient to clean and maintain, the connecting surface of a sealing ring 6 and the connecting surface of the end cover 4 are mutually attached, the connection is tight and stable, and the gap generated by the connection of the end cover 4 and the box body 1 can, promote sealed degree, further guarantee inside gas tightness, increase the firm degree that end cover 4 and box 1 are connected and are connected simultaneously, and flexible seal circle 6 can improve both safety degree in end cover 4 and the screw-thread of box 1 connects soon, reduce wearing and tearing, guarantee both and connect inseparable degrees, take out collecting pipe 15 and store, wash box 1 inside at last, the user of then passes through the handle 7 of portable symmetric distribution, the blow off pipe 3 of unscrewing protection base 2 downside discharges the inside spot of box 1, protection base 2 arched bridge form character cut in bas-relief, can disperse the resistance to compression when the atress, further increase bearing effect, guarantee the stability of bottom, save material more simultaneously, and reduce cost, also be convenient for to the installation of blow off pipe 3, and to the inside clearance of box 1, just so accomplish the use of whole solid phase extraction device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a solid phase extraction device, includes box (1) and end cover (4), its characterized in that: the vacuum box is characterized in that a protective base (2) is fixed on the lower side of the box body (1), a sewage discharge pipe (3) is arranged in the middle of the lower end of the protective base (2), an end cover (4) is connected to the upper top end of the box body (1), external threads (5) are arranged on the outer side of the lower end of the end cover (4), a sealing ring (6) is connected to the inner wall of the end cover (4), handles (7) are fixed in the middle of the two ends of the end cover (4), a vacuum exhaust pipe (8) is connected to the left end of the upper side of the end cover (4), a stud (9) is fixed in the middle of the upper end of the vacuum exhaust pipe (8), a connecting seat (10) is arranged at the right end of the upper side of the end cover (4), a vacuum meter (11) is fixed to the upper end of the connecting seat (10), a, and the lower bottom end in the box body (1) is connected with a test tube clamp (14).

2. A solid phase extraction apparatus according to claim 1, wherein: the box body (1) and the protection base (2) are of an integrated structure, and the protection base (2) is in a concave shape.

3. A solid phase extraction apparatus according to claim 1, wherein: the structure size of the outer opening of the end cover (4) is matched with the structure size of the inner opening of the box body (1), and the end cover (4) and the box body (1) form a threaded screw connection through external threads (5).

4. A solid phase extraction apparatus according to claim 1, wherein: the outer end connecting surface of the sealing ring (6) is attached to the inner opening connecting surface of the end cover (4) in a mutual laminating manner, and the sealing ring (6) is of a flexible structure.

5. A solid phase extraction apparatus according to claim 1, wherein: the column tubes (12) penetrate through the middle of the end cover (4), and the column tubes (12) are distributed in the middle of the end cover (4) at equal intervals.

6. A solid phase extraction apparatus according to claim 1, wherein: the test tube clamps (14) and the positioning frame (13) are distributed in parallel, and the test tube clamps (14) and the collecting tube (15) are in a semi-surrounding structure.

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