Solid-phase extraction small column sealing structure

Abstract

The utility model discloses a solid phase extraction small column sealing structure, and relates to the technical field of solid phase extraction small columns, the solid phase extraction small column sealing structure comprises a sealing device, a solid phase extraction (SPE) column is arranged in the sealing device, the upper end of the sealing device is provided with two groups of shunting devices, and the shunting devices are symmetrically arranged at the upper end of the sealing device. The flow dividing device comprises a flow dividing block, a first flow dividing connector and an air inlet connector, the flow dividing block is arranged at the upper end of the sealing device, the first flow dividing connector is arranged on the flow dividing block, the air inlet connector is arranged at the front end of the flow dividing block, a collecting box is arranged at the lower end of the sealing device, and a transparent plate is arranged at the front end of the collecting box. A transparent plate is arranged in the collecting box, a collecting box handle is arranged on the transparent plate, a collecting cup is arranged in the collecting box, and a collecting cup handle is arranged on the collecting cup. According to the scheme, the problems that the sealing effect is poor, replacement is inconvenient, and SPE columns of different sizes cannot be sealed are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid phase extraction column technical field, concretely is solid phase extraction column sealing structure. BACKGROUND

[0002] The sealing structure design of solid phase extraction column is one of its core components, usually adopting membrane piece type elastic sealing technology. This technology realizes sealing through independent top elastic sealing pad, avoiding cross contamination problem caused by repeated use of fixed sealing piston. At the same time, this design also prevents the problems of hard sealing cover sealing not strictly and sample needle easy to damage. In addition, the sealing position of solid phase extraction column can be set, and the inner wall of the sealing ring is sealed from the inner wall of the column, and the inner wall sealing height of the sealing ring can be set by software. This sealing mode not only improves the airtightness and stability of the solid phase extraction column, but also ensures the efficiency and consistency of the extraction process.

[0003] The prior art solid phase extraction column sealing structure includes a deflector, a sealing fixed plate, an SPE column limiting plate and an SPE column. The surface of the SPE column is inserted into the hole of the SPE column limiting plate. The lower end of the sealing fixed plate is detachably installed with a sealing plate. The surface of the sealing plate is provided with a dispensing sealing ring. The deflector is fixedly installed at the upper end of the sealing fixed plate. An O-ring is arranged between the deflector and the sealing fixed plate to realize sealing. The O-ring is made of soft material and has a gap between the rings, so as to ensure sufficient pre-pressing space. When the sealing plate is worn out after long-term use, it can be directly detached from the sealing fixed plate for replacement, reducing the waste of other parts, and the structure is simple and can be adjusted according to the situation, and it is more convenient to use.

[0004] The above-mentioned device has poor sealing effect, is inconvenient to replace, and cannot seal different sizes of SPE columns. Therefore, the solid phase extraction column sealing structure is proposed to solve the problems in the above-mentioned background technology. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing solid phase extraction column sealing structure to solve the problems of poor sealing effect, inconvenience to replace and inability to seal different sizes of SPE columns in the above-mentioned background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: Solid phase extraction column sealing structure, including sealing device, the sealing device is provided with SPE column, the sealing device upper end is provided with the shunt device, the shunt device is provided with two groups, and symmetry sets up on the sealing device upper end, the shunt device includes shunt block, first shunt interface and air inlet, the shunt block sets up on the sealing device upper end, is provided with first shunt interface on the shunt block, the shunt block front end is provided with air inlet, the sealing device lower extreme is provided with collection box, the collection box front end is provided with transparent plate, is provided with collection box handle on the transparent plate, is provided with collection cup in the collection box, is provided with collection cup handle on the collection cup.

[0007] Preferably, the sealing device comprises a sealing upper plate and a sealing lower plate.

[0008] Preferably, the sealing upper plate lower end is provided with a sealing rubber sleeve, a first groove is formed on the sealing upper plate, the first groove is provided with four groups, the upper end of each group of the first groove is provided with a second fixing bolt, the upper end of each group of the second fixing bolt is provided with a second shunt interface, the lower end of each group of the second shunt interface is provided with a catheter, and the outer side of the catheter is provided with a first sealing rubber ring.

[0009] Preferably, the sealing lower plate is provided with four groups of symmetrical second grooves, and the second grooves are provided with second sealing rubber rings.

[0010] Preferably, the sealing upper plate is provided with a first fixing bolt, the first fixing bolt is provided with four groups, and the two groups are symmetrically arranged around the sealing upper plate, and the sealing upper plate is bolted to the sealing lower plate through the four groups of first fixing bolts.

[0011] Preferably, the SPE column is provided with a filter plate, and the filter plate is provided with two groups, and an adsorption block is arranged between the two groups of filter plates.

[0012] Preferably, the SPE column is arranged on the second sealing rubber ring.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The utility model discloses four groups of second grooves are formed on the sealing lower plate, and the second grooves are provided with second sealing rubber rings, which supports the SPE column arranged in the second groove, cooperates with the first sealing rubber ring arranged at the lower end of the sealing upper plate, and covers and connects the upper and lower two groups of sealing rubber rings, thereby solving the problem that different sizes of SPE columns cannot be sealed.

[0015] 2, by setting the sealing rubber sleeve in the sealing upper plate lower end, cooperate with the sealing upper plate upper end set four groups of first fixed bolt, with the lower end set sealing lower plate bolt connection, realize the effect of quick disassembly and assembly, convenient to replace the sealing rubber sleeve and two groups of sealing rubber ring set in the sealing device, thereby solve the problem of inconvenient replacement of sealing rubber ring. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the front view of the utility model;

[0018] Figure 3 It is the sectional view of the utility model;

[0019] Figure 4 It is the sealing device opening diagram of the utility model;

[0020] In the drawing: 1, sealing device;1001, sealing upper plate;1002, sealing lower plate;2, first fixed bolt;3, shunt block;4, first shunt interface;5, air inlet;6, second shunt interface;7, collection box;8, transparent plate;9, collection box handle;10, collection cup;11, collection cup handle;12, SPE column;13, adsorption block;14, second fixed bolt;15, catheter;16, sealing rubber sleeve;17, first sealing rubber ring;18, second sealing rubber ring;19, shunt device;20, first groove;21, second groove. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] Please refer to Figures 1-4The utility model provides a kind of embodiment: solid phase extraction column sealing structure, including sealing device 1, SPE column 12 is provided in sealing device 1, shunt device 19 is provided on the upper end of sealing device 1, shunt device 19 is provided with two groups, and symmetrically set on the upper end of sealing device 1, shunt device 19 includes shunt block 3, first shunt interface 4 and air inlet 5, shunt block 3 is set on the upper end of sealing device 1, first shunt interface 4 is provided on shunt block 3, air inlet 5 is provided on the front end of shunt block 3, collecting box 7 is provided on the lower end of sealing device 1, transparent plate 8 is provided on the front end of collecting box 7, collecting box handle 9 is provided on transparent plate 8, collecting cup 10 is provided in collecting box 7, collecting cup handle 11 is provided on collecting cup 10, by being provided with four groups of second grooves 21 on sealing lower plate 1002, and four groups of second grooves 21 are all provided with second sealing rubber ring 18, the effect of supporting is played to the SPE column 12 provided in second groove 21, cooperate with the first sealing rubber ring 17 set on the lower end of sealing upper plate 1001, the upper and lower two groups of sealing rubber rings are connected by cover, to solve the problem that different sizes of SPE column 12 cannot be sealed, by being provided with sealing rubber sleeve 16 on the lower end of sealing upper plate 1001, cooperate with four groups of first fixing bolt 2 set on the upper end of sealing upper plate 1001, and the bolt connection of the lower end setting sealing lower plate 1002, the effect of quick disassembly and assembly is realized, it is convenient to replace the sealing rubber sleeve 16 and two groups of sealing rubber rings provided in sealing device 1, to solve the problem that sealing rubber ring is inconvenient to replace.

[0023] Please refer to Figure 4 , sealing device 1 includes sealing upper plate 1001 and sealing lower plate 1002.

[0024] Please refer to Figure 4 , sealing rubber sleeve 16 is set on the lower end of sealing upper plate 1001, first groove 20 is set on sealing upper plate 1001, and four groups of first grooves 20 are set, and the upper end of each group of first grooves 20 is provided with second fixing bolt 14, the upper end of each group of second fixing bolt 14 is provided with second shunt interface 6, and the lower end of each group of second shunt interface 6 is provided with catheter 15, and the outer side of catheter 15 is provided with first sealing rubber ring 17.

[0025] Please refer to Figure 4 , symmetric four groups of second grooves 21 are set on sealing lower plate 1002, and four groups of second grooves 21 are all provided with second sealing rubber ring 18, by being provided with four groups of second grooves 21 on sealing lower plate 1002, and four groups of second grooves 21 are all provided with second sealing rubber ring 18, the effect of supporting is played to the SPE column 12 provided in second groove 21, cooperate with the first sealing rubber ring 17 set on the lower end of sealing upper plate 1001, the upper and lower two groups of sealing rubber rings are connected by cover, to solve the problem that different sizes of SPE column 12 cannot be sealed, by being provided with sealing rubber sleeve 16 on the lower end of sealing upper plate 1001, cooperate with four groups of first fixing bolt 2 set on the upper end of sealing upper plate 1001, and the bolt connection of the lower end setting sealing lower plate 1002, the effect of quick disassembly and assembly is realized, it is convenient to replace the sealing rubber sleeve 16 and two groups of sealing rubber rings provided in sealing device 1, to solve the problem that sealing rubber ring is inconvenient to replace.

[0026] Please refer to Figure 1The first fixing bolt 2 is arranged on the sealing upper plate 1001, four groups of the first fixing bolt 2 are symmetrically arranged around the sealing upper plate 1001, the sealing upper plate 1001 is bolted with the sealing lower plate 1002 through the four groups of the first fixing bolt 2, the sealing rubber sleeve 16 is arranged at the lower end of the sealing upper plate 1001, the four groups of the first fixing bolt 2 arranged at the upper end of the sealing upper plate 1001 are bolted with the sealing lower plate 1002 arranged at the lower end, the quick dismounting effect is realized, and the sealing rubber sleeve 16 and the two groups of the sealing rubber rings arranged in the sealing device 1 are convenient to replace.

[0027] Please refer to Figure 3 The filter plate is arranged in the SPE column 12, the two groups of the filter plate are arranged, and the adsorption block 13 is arranged between the two groups of the filter plate, so that the required thing in the SPE column 12 is extracted.

[0028] Please refer to Figure 4 The SPE column 12 is arranged on the second sealing rubber ring 18, so that the SPE column 12 is supported and sealed.

[0029] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-restrictive in any respect, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A structure for sealing a solid phase extraction cartridge, comprising a sealing device (1), characterized in that: The sealing device (1) is provided with an SPE column (12), the upper end of the sealing device (1) is provided with a shunt device (19), the shunt device (19) is provided with two groups, and is symmetrically arranged on the upper end of the sealing device (1), the shunt device (19) comprises a shunt block (3), a first shunt interface (4) and an air inlet interface (5), the shunt block (3) is arranged on the upper end of the sealing device (1), the first shunt interface (4) is arranged on the shunt block (3), the air inlet interface (5) is arranged at the front end of the shunt block (3), the lower end of the sealing device (1) is provided with a collection box (7), the front end of the collection box (7) is provided with a transparent plate (8), the transparent plate (8) is provided with a collection box handle (9), the collection box (7) is provided with a collection cup (10), and the collection cup (10) is provided with a collection cup handle (11).

2. The solid phase extraction cartridge seal structure of claim 1, wherein: The sealing device (1) comprises a sealing upper plate (1001) and a sealing lower plate (1002).

3. The solid phase extraction cartridge seal structure of claim 2, wherein: The lower end of the sealing upper plate (1001) is provided with a sealing rubber sleeve (16), the sealing upper plate (1001) is provided with a first groove (20), the first groove (20) is provided with four groups, the upper end of each group of the first groove (20) is provided with a second fixing bolt (14), the upper end of each group of the second fixing bolt (14) is provided with a second shunt interface (6), the lower end of each group of the second shunt interface (6) is provided with a catheter (15), and the outer side of the catheter (15) is provided with a first sealing rubber ring (17).

4. The solid phase extraction cartridge seal structure of claim 2, wherein: The sealing lower plate (1002) is provided with four groups of symmetrical second grooves (21), and the four groups of the second grooves (21) are provided with second sealing rubber rings (18).

5. The solid phase extraction cartridge seal structure of claim 2, wherein: The sealing upper plate (1001) is provided with a first fixing bolt (2), the first fixing bolt (2) is provided with four groups, and is symmetrically arranged around the sealing upper plate (1001), and the sealing upper plate (1001) is bolted with the sealing lower plate (1002) through the four groups of first fixing bolts (2).

6. The solid phase extraction cartridge seal structure of claim 1, wherein: The SPE column (12) is provided with a filter plate, the filter plate is provided with two groups, and the filter plate is provided with an adsorption block (13) between the two groups.

7. The solid phase extraction cartridge seal structure of claim 1, wherein: The SPE column (12) is arranged on the second sealing rubber ring (18).

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