CN208493333U - A kind of quantified extract syringe - Google Patents
A kind of quantified extract syringe Download PDFInfo
- Publication number
- CN208493333U CN208493333U CN201820764573.5U CN201820764573U CN208493333U CN 208493333 U CN208493333 U CN 208493333U CN 201820764573 U CN201820764573 U CN 201820764573U CN 208493333 U CN208493333 U CN 208493333U
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- China
- Prior art keywords
- handle cylinder
- push rod
- wall
- sleeve pipe
- cylinder
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Abstract
The utility model discloses a kind of quantified extract syringes, including push rod, handle cylinder and casing, the handle cylinder is the cylinder of inner hollow and open at one end, it is equipped with the card slot of annular on its inner sidewall to other end interval or continuously from one end, described sleeve pipe and the other end of the handle cylinder are connected to and in communication with, described push rod one end is protruded into handle cylinder by the open-mouth of the handle cylinder, and the piston in sealing contact with the handle cylinder inner wall is equipped in one end end, its other end is located at outside the handle cylinder, fixed ring is equipped with the spacing collar of the elasticity to match with the card slot outside described push rod one end, under external force, the push rod is moved along the inner wall of the handle cylinder, and the piston is driven to move along the inner wall of the handle cylinder, the spacing collar slips over the inner wall of the handle cylinder, and slidably in any one of card slot.
Description
Technical field
The utility model relates to analytical chemistry Sample Pretreatment Technique field more particularly to a kind of quantified extract syringes.
Background technique
Liquid-phase micro-extraction be get up with the development of modern age environmental analysis technology collection sampling, separation, enrichment and
Sample introduction is in the Sample Pretreatment Technique of one, and the advantages of it combines liquid-liquid extraction and Solid Phase Extraction, required organic solvent is few, behaviour
Make simply, high sensitivity, concentration effect is good, which not only can be used alone, can also be with gas-chromatography (GC), high-efficient liquid phase color
Compose (HPLC), gas chromatography-mass spectrography (GC-MS), liquid chromatograph mass spectrography (LC-MS).Liquid-phase micro extraction technique is main
Including single drop micro-extraction (SDME), doughnut liquid-phase micro-extraction (HF-LPME), stirring rod micro-extraction (SBME), continuous flowing
Micro-extraction (CFME) and dispersive liquid-liquid microextraction (DLLME) etc..Single drop micro-extraction (SDME) is a kind of novel, environmental-friendly sample
Product pretreatment technology, it collects extraction, is enriched in one, at low cost, device is simple, easily operated, consumption of organic solvent is few
And bioaccumulation efficiency it is high the features such as.But the micro syringe in traditional single drop micro-extraction device can not accurately produce extraction
Agent, and single drop extraction quantity is needed by artificially syringe being pushed to be controlled, so that the precision of extraction quantity is difficult to grasp, to make
The precision and poor repeatability of the measurement of sample.
Utility model content
The utility model provides a kind of quantified extract syringe, solves the problems, such as techniques discussed above.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of quantified extract syringe, including push rod,
Handle cylinder and casing, the handle cylinder are the cylinder of inner hollow and open at one end, from one end to the other end on inner sidewall
Interval or the continuous card slot for being equipped with annular, described sleeve pipe and the other end of the handle cylinder are connected to and in communication with, described push rod one end
It is protruded into handle cylinder by the open-mouth of the handle cylinder, and in one end end equipped in sealing contact with the handle cylinder inner wall
Piston, the other end are located at outside the handle cylinder, and fixed ring is equipped with the bullet to match with the card slot outside described push rod one end
The spacing collar of property, under external force, the push rod is moved along the inner wall of the handle cylinder, and drives the piston along the handle
The inner wall of cylinder is mobile, and the spacing collar slips over the inner wall of the handle cylinder, and slidably in any one of card slot.
The utility model has the following beneficial effects: a kind of quantified extract syringe provided by the utility model, by hand
Multiple equidistant card slots are set, it can be achieved that producing to quantifying for extractant liquor capacity, this extraction syringe construction on handle cylinder
Simply, easily fabricated, it is easy to maintain, it is low in cost, it is easy to operate, and service precision can reach measurement request.
Further, handle cylinder bottom end is equipped with a through-hole, and one end of described sleeve pipe removably connects with the through-hole
It connects and is connected to.
Further, described sleeve pipe includes sleeve body and diversion pipe, and described sleeve pipe ontology is the hollow of open at both ends
Pipe, one end of described sleeve pipe ontology are removably connected to and in communication with the through-hole, and the other end connect and connects with the diversion pipe
It is logical.
Further, the diversion pipe is conical pipe, and cone bottom end is connect with described sleeve pipe ontology far from one end of through-hole
And be connected to, cone end is arranged far from one end of described sleeve pipe ontology.
Beneficial effect using above-mentioned further scheme is: can reduce residual of the extractant in diversion pipe, effectively keep away
The extension liquid phenomenon during sample-adding is exempted from.
It further include extraction connector, the extraction connector is removably connected to and in communication with by a dropping liquid control assembly
The one end of the diversion pipe far from described sleeve pipe ontology.
Beneficial effect using above-mentioned further scheme is: the dropping liquid control assembly can be to the extractant flowed in casing
The volume of solution carries out second metering and produces, to improve the precision for producing result.
Further, the dropping liquid control assembly includes rubber tube and glass marble, and one end of the rubber tube is socketed in
The cone end of the diversion pipe, the other end are socketed in the extraction connector close to one end of described sleeve pipe, and the glass marble is set
It sets in rubber tube, and is contacted with the rubber inside pipe wall, and can be rolled under external force along the rubber inside pipe wall.
Beneficial effect using above-mentioned further scheme is: the extraction in casing can be quantitatively controlled by pressing rubber tube
Agent solution flows to the volume of sharp mouth connector, easy to operate, and service precision is higher.
Further, the other end of the push rod is equipped with push rod cap.
Beneficial effect using above-mentioned further scheme is: the push rod cap increases contact of laboratory technician's finger with push rod
Area makes laboratory technician be easier to push push rod in use, to reach labour-saving effect.
Further, the handle cylinder is transparent cylinder, is provided with graduation mark on lateral wall.
Beneficial effect using above-mentioned further scheme is: graduation mark is arranged on the side wall of the handle cylinder, can facilitate
The volume of laboratory technician's observation handle liquid within the cartridge.
The further advantage, target and feature of the utility model will be partially reflected by the following instructions, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of quantified extract syringe described in the utility model；
Fig. 2 is the structural schematic diagram of dropping liquid control assembly described in the utility model.
In attached drawing, parts list represented by the reference numerals are as follows:
1, push rod；11, push rod cap；12, spacing collar；13, piston；2, handle cylinder；21, card slot；3, casing；31, extraction connects
Connector；32, rubber tube；33, glass marble；34, sleeve body；35, diversion pipe；
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
It should be noted that in the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and is not instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
The limitation of the utility model.
Fig. 1-Fig. 2 is a kind of quantified extract syringe provided by the embodiment of the utility model, including push rod 1,2 and of handle cylinder
Casing 3, the handle cylinder 2 are the cylinder of inner hollow and open at one end, on inner sidewall from one end to other end interval or
Push rod 1 is pushed to by the continuous card slot 21 for being equipped with annular, 21 spaced set of card slot from a upper card slot 21 every time with realizing
The extraction agent solution produced when next card slot 21 is the function of quantitative extraction agent solution, and can be not androgynous according to actually producing
The demand of long-pending extractant, in the equidistant card slot 21 of 2 inner wall of handle cylinder setting different distance.Described sleeve pipe 3 and the handle
The other end of cylinder 2 is connected to and in communication with, and described 1 one end of push rod is protruded into handle cylinder 2 by the open-mouth of the handle cylinder 2, and at it
One end end is equipped with the piston 13 in sealing contact with 2 inner wall of handle cylinder, and fixed ring is equipped with outside described 1 one end of push rod
The spacing collar 12 of the elasticity to match with the card slot 21, under external force, the push rod 1 is moved along the inner wall of the handle cylinder 2
It is dynamic, and the piston 13 is driven to move along the inner wall of the handle cylinder 2, the spacing collar 12 slips over the inner wall of the handle cylinder 2,
And slidably in any one of card slot 21, after extracting agent solution and producing, it is molten to be produced extractant next time
Before liquid, it is stuck in card slot 21 by the spacing collar 12 on push rod 1 and locks push rod 1, prevented it from continuing to glide, cause extractant
Solution produces the not accurate of result.
Preferably, 2 bottom end of handle cylinder is equipped with a through-hole, and the through-hole is equipped with internal screw thread, and described sleeve pipe 3 is led to described
One end of hole connection is equipped with external screw thread, and described sleeve pipe 3 is removably revolved by external screw thread and internal screw thread with the handle cylinder 2
Turn to be threadedly coupled.Wherein, described sleeve pipe 3 is a graduated plastic straw of setting, to facilitate laboratory technician to see in operation
The volume of produced extractant is examined, described sleeve pipe 3 can need to choose different length dimensions according to experiment to cooperate experimental implementation
It needs.
Preferably, described sleeve pipe 3 includes sleeve body 34 and diversion pipe 35, and described sleeve pipe ontology 34 is open at both ends
Hollow pipe, one end of described sleeve pipe ontology 34 are removably connected to and in communication with the through-hole, the external screw thread setting of described sleeve pipe 3
In one end that described sleeve pipe ontology 34 is connect with through-hole, described sleeve pipe ontology 34 by the internal screw thread of external screw thread and through-hole with it is described
Handle cylinder 2 removably rotate and is threadedly coupled and is connected to, and the other end is connected to and in communication with the diversion pipe 35.
Preferably, the diversion pipe 35 is that conical pipe, cone bottom end and described sleeve pipe ontology 34 connect far from one end of through-hole
It connects and is connected to, cone end is arranged far from one end of described sleeve pipe ontology 34, and it is residual in diversion pipe 35 can to reduce extractant
It stays, efficiently avoids the extension liquid phenomenon during sample-adding.
It preferably, further include extraction connector 31, the extraction connector 31 is equipped with conical flow guiding mouth, is easier to extractant
It is instilled in sample injection bottle out of extraction connector 31, reduces sample carryover.31 multi-size of extraction connector, in experimentation
In, it can be controlled by choosing extraction connector 31 of different specifications and sizes from the single drop dropping liquid of extraction 31 flow-guiding mouth of connector outflow
Maximum volume, with for testing.The extraction connector 31 is removably connected to and in communication with by a dropping liquid control assembly
The described one end of diversion pipe 35 far from described sleeve pipe ontology 34.The dropping liquid control assembly is controllable to enter sharp mouth out of casing 3
The volume of the extraction agent solution of connector, and second metering sampling is carried out, to guarantee the precision for the extraction agent solution finally produced.
Preferably, the dropping liquid control assembly includes rubber tube 32 and glass marble 33, an end cap of the rubber tube 32
It connects at the cone end of the diversion pipe 35, the other end is socketed in the extraction connector 31 close to one end of described sleeve pipe 3, described
Glass marble 33 is arranged in rubber tube 32, and contacts with 32 inner wall of rubber tube, and can be under external force along the rubber
32 inner wall of leather hose rolls, and the internal diameter of the glass marble 33 is greater than one end that the extraction connector 31 is connect with the diversion pipe 35
Port inner diameter, to prevent the glass marble 33 from falling into the extraction connector 31.It is light with left hand thumb and index finger when operation
The rubber tube 32 that 33 outside of glass marble is lightly squeezed toward one side, makes to form a gap in rubber tube 32, extractant can be from casing 3
Interior flow direction is dripped from extraction connector 31, and from extraction connector 31 into sample injection bottle.When extruding, hand will be placed on glass marble 33 slightly
Top, side squish lip observe the scale on casing 3, when the extraction agent solution for completing determined volume is produced, then stop squeezing rubber
Leather hose 32.
Preferably, the other end of the push rod 1 is equipped with push rod cap 11, and the push rod cap 11 increases laboratory technician's finger and pushes away
The contact area of bar 1 makes laboratory technician be easier to push push rod 1 in use, to reach labour-saving effect.
The handle cylinder 2 is transparent cylinder, is provided with graduation mark on lateral wall, the graduation mark is along the handle cylinder 2
Axial line arrangement, to facilitate laboratory technician to observe the volume of solution in handle cylinder 2.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and embodiment shown and described herein with novel.
Claims (8)
1. a kind of quantified extract syringe, which is characterized in that including push rod (1), handle cylinder (2) and casing (3), the handle cylinder
(2) it is inner hollow and the cylinder of open at one end, is equipped with annular to other end interval or continuously from one end on inner sidewall
Card slot (21), described sleeve pipe (3) and the other end of the handle cylinder (2) are connected to and in communication with, and described push rod (1) one end is by the hand
The open-mouth of handle cylinder (2) protrudes into handle cylinder (2), and in one end end equipped in sealing contact with handle cylinder (2) inner wall
Piston (13), the other end is located at the handle cylinder (2) outside, and fixed ring is equipped with and the card outside described push rod (1) one end
The spacing collar (12) for the elasticity that slot (21) matches, under external force, the push rod (1) is moved along the inner wall of the handle cylinder (2)
It is dynamic, and drive the piston (13) mobile along the inner wall of the handle cylinder (2), the spacing collar (12) slips over the handle cylinder
(2) inner wall, and it is slidably interior to any one of card slot (21).
2. a kind of quantified extract syringe according to claim 1, which is characterized in that handle cylinder (2) bottom end is equipped with
One end of one through-hole, described sleeve pipe (3) is removably connected to and in communication with the through-hole.
3. a kind of quantified extract syringe as claimed in claim 2, which is characterized in that described sleeve pipe (3) includes sleeve body
(34) and diversion pipe (35), described sleeve pipe ontology (34) are the hollow pipe of open at both ends, one end of described sleeve pipe ontology (34)
It is removably connected to and in communication with the through-hole, the other end is connected to and in communication with the diversion pipe (35).
4. a kind of quantified extract syringe as claimed in claim 3, which is characterized in that the diversion pipe (35) is conical pipe,
It is bored bottom end and is connected to and in communication with described sleeve pipe ontology (34) far from one end of through-hole, and cone end is arranged far from described sleeve pipe
One end of ontology (34).
5. a kind of quantified extract syringe as claimed in claim 4, which is characterized in that further include extraction connector (31), institute
Extraction connector (31) is stated removably to be connected to and in communication in the diversion pipe (35) by a dropping liquid control assembly far from described
One end of sleeve body (34).
6. a kind of quantified extract syringe as claimed in claim 5, which is characterized in that the dropping liquid control assembly includes rubber
One end of leather hose (32) and glass marble (33), the rubber tube (32) is socketed in the cone end of the diversion pipe (35), the other end
Extraction connector (31) is socketed in close to the one end of described sleeve pipe (3), the glass marble (33) is arranged in rubber tube (32)
It is interior, and contacted with the rubber tube (32) inner wall, and can be rolled under external force along the rubber tube (32) inner wall.
7. a kind of quantified extract syringe as described in claim 1, which is characterized in that the other end of the push rod (1) is equipped with
Push rod cap (11).
8. a kind of quantified extract syringe as described in claim 1, which is characterized in that the handle cylinder (2) is transparent cylinder,
Graduation mark is provided on its lateral wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820764573.5U CN208493333U (en) | 2018-05-22 | 2018-05-22 | A kind of quantified extract syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820764573.5U CN208493333U (en) | 2018-05-22 | 2018-05-22 | A kind of quantified extract syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208493333U true CN208493333U (en) | 2019-02-15 |
Family
ID=65292949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820764573.5U Expired - Fee Related CN208493333U (en) | 2018-05-22 | 2018-05-22 | A kind of quantified extract syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208493333U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752475A (en) * | 2019-02-27 | 2019-05-14 | 辽东学院 | A kind of gas-chromatography glass liner tube structure |
| CN110747105A (en) * | 2019-11-28 | 2020-02-04 | 北京擎科生物科技有限公司 | Common-channel liquid pumping device |
-
2018
- 2018-05-22 CN CN201820764573.5U patent/CN208493333U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752475A (en) * | 2019-02-27 | 2019-05-14 | 辽东学院 | A kind of gas-chromatography glass liner tube structure |
| CN110747105A (en) * | 2019-11-28 | 2020-02-04 | 北京擎科生物科技有限公司 | Common-channel liquid pumping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 Termination date: 20200522 |