CN205538862U - Micro sample injector - Google Patents
Micro sample injector Download PDFInfo
- Publication number
- CN205538862U CN205538862U CN201620296273.XU CN201620296273U CN205538862U CN 205538862 U CN205538862 U CN 205538862U CN 201620296273 U CN201620296273 U CN 201620296273U CN 205538862 U CN205538862 U CN 205538862U
- Authority
- CN
- China
- Prior art keywords
- push rod
- microsyringe
- cylinder
- guide pillar
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a micro sample injector. Include: barrel, its front end are equipped with the awl mouth, and the end is equipped with the opening, and inside is equipped with and holds the chamber for hold the sample, syringe, its through be equipped with the pintle of end with the awl mouth of barrel links to each other, push rod, its front portion stretch into the appearance intracavity, and the end is equipped with and pushes away the handle for the appearance chamber is inhaleed or released with the sample, wherein, the push rod is the reducing pole, and anterior thin, the rear portion is thick, the shape and push rod phase -match of holding the chamber. The beneficial effects of the utility model are that: the push rod is the reducing pole, and anterior thin, the rear portion is thick to can prevent the push rod rupture, syringe's rear portion cover is equipped with the rubber tube, can prevent the syringe rupture, the both sides of barrel are equipped with first guide rail and second guide rail, can inject push rod along barrel endwise slip, prevent that the push rod from buckling.
Description
Technical field
This utility model relates to a kind of chemical experiment device, particularly to a kind of microsyringe.
Background technology
Injector is in chromatographic system, can will analyze the device of sample feeding chromatographic column quantitatively.Trace
Injector.Microsyringe can the sample of accurate measuring trace, therefore, its structure is more fine, valency
Lattice are the most costly.
During carrying out chromatograph class experiment, it is desirable to experimenter's sample introduction is fast and accurate, can ensure
That tests is accurate.But due to the pusher section delicate of microsyringe, and experimenter's sample introduction
Dynamics is the most incomplete same, it is easy to fractureed by the push rod of micro-sampling, causes micro-sampling pin to continue
Continuous use.
Therefore, it is a kind of it can be avoided that the microsyringe that push rod fractures becomes the key of solution problem.
Utility model content
The purpose of this utility model is to provide a kind of microsyringe, and its push rod is reducing bar, anterior thin,
Rear portion is thick such that it is able to anti-throw-out lever fractures.
For achieving the above object, this utility model adopts the following technical scheme that, including:
Cylinder, its front end is provided with cone mouth, and end is provided with opening, and inside is provided with cavity volume, is used for accommodating sample；
Sample introduction needle, it is connected with the cone mouth of described cylinder at the pintle of end by being provided with；
Push rod, its front portion is stretched in cavity volume, and end is provided with push handle, is used for sucking the sample into or releasing cavity volume；
Wherein, described push rod is reducing bar, and anterior thin, rear portion is thick, the shape of described cavity volume and push rod phase
Coupling.
Preferably, also include:
Rubber tube, it is set in the rear portion of described sample introduction needle, is used for preventing sample introduction needle from fractureing.
Preferably, also include:
First guide pillar and the second guide pillar, it is respectively parallel to push rod and is arranged on the both sides of cylinder, end difference
It is fixed in described push handle, is used for limiting push rod and slides axially along cylinder；
First guide pin bushing and the second guide pin bushing, it is arranged on the middle part of cylinder, is respectively used to support described first and leads
Post and the second guide pillar.
Preferably, in described first guide pin bushing and the second guide pin bushing, it is respectively equipped with sliding bearing.
Preferably, the front end at described first guide pillar and the second guide pillar is respectively equipped with limited block.
Preferably, being provided with yielding rubber in described push handle front end, described yielding rubber is for opening with described
Mouth abuts against.
Preferably, described cylinder is provided with graduation mark.
The beneficial effects of the utility model are: 1, push rod is reducing bar, and anterior thin, rear portion is thick, it is thus possible to
Enough anti-throw-out levers fracture；2, the rear sleeve in described sample introduction needle is provided with rubber tube, it is possible to prevent sample introduction needle from rolling over
Disconnected；3, the both sides at described cylinder are provided with the first guide rail and the second guide rail, it is possible to limit push rod along drum shaft
To slip, anti-throw-out lever bends.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of microsyringe of this utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings utility model is described in further detail, to make those skilled in the art join
Book word can be implemented according to this as directed.
Should be appreciated that used herein such as " have ", " comprising " and " including " term also
It is not excluded for other element one or more or the existence of a combination thereof or interpolation.
As it is shown in figure 1, a kind of way of realization of the present utility model, cylinder 110 is by transparent glass material
Make.The front end of cylinder 110 is provided with cone mouth 111, and the end of cylinder 110 is provided with opening, cylinder 110
Inside be provided with cavity volume 112, be used for accommodating sample.Preferred as one, described cylinder 110 is provided with
Graduation mark 113.
Sample introduction needle 120 is connected with the cone mouth 111 of described cylinder 110 at the pintle 121 of end by being provided with.
Push rod 130 front portion is stretched in cavity volume 112, and the end of push rod 130 is provided with push handle 131, and being used for will
Sample sucks or releases cavity volume 112.
Wherein, described push rod 130 is reducing bar, and anterior thin, rear portion is thick, the shape of described cavity volume 112
Match with push rod 130.
In use, first push rod 130 is pushed into cavity volume 112 innermost end, then by sample introduction needle 120
Front end is inserted in sample liquid level, repeated multiple times push-and-pull push rod 130, until in the cavity volume 112 of pipette samples
Bubble-free；Sample introduction needle 120 is taken out in sample, by reagent paper wiping sample introduction needle 120, by sample introduction needle 120
Insert the injection port of chromatogram arrangement, quickly push push rod 130, make sample quickly enter in chromatographic column.
In the process, owing to push rod 130 is reducing bar, anterior thin, rear portion is thick, is therefore not easy to fracture,
Increase the service life, ensured being smoothed out of experiment.
In another embodiment, also include: rubber tube 122.Rubber tube 122 is in cylinder, at it
Axial center is provided with through hole, and described through hole matches with sample introduction needle 120.Rubber tube 122 is set in institute
State the rear portion of sample introduction needle 120, be used for preventing sample introduction needle 120 from fractureing.Preferred as one, described rubber
Pipe 122 is made up of silica gel material.
In another embodiment, also include: first guide pillar the 141, second guide pillar the 142, first guide pin bushing
143 and second guide pin bushing 144.Wherein, the first guide pillar 141 and the second guide pillar 142 are respectively parallel to push rod
130 both sides being arranged on cylinder 110, end is separately fixed in described push handle 131, pushes away for restriction
Bar 130 slides axially along cylinder 110；First guide pin bushing 143 and the second guide pin bushing 144 are separately positioned on cylinder
The middle part of body 120, is respectively used to support described first guide pillar 141 and the second guide pillar 142.As one
Preferably, described first guide pillar 141 and the second guide pillar 142 are made up of stainless steel material.
In another embodiment, in described first guide pin bushing 143 and the second guide pin bushing 144, it is respectively equipped with cunning
Dynamic bearing.
In another embodiment, the front end at described first guide pillar 141 and the second guide pillar 142 sets respectively
Limited location block 145.Limited block 145 is prevented from the front end of the first guide pillar 141 and the second guide pillar 142 certainly
Guide pin bushing slips.Preferred as one, described limited block 145 is made up of stainless steel material.
In another embodiment, it is provided with yielding rubber 132, described buffering in described push handle 131 front end
Rubber 132, for abutting against with described opening, prevents from overexerting, causes push rod 130 to bend.
In another embodiment, described cylinder 110 is provided with graduation mark 113, it is simple to read scale.
This utility model one microsyringe 1 as mentioned above, push rod 130 is reducing bar, anterior thin, after
Portion is thick such that it is able to anti-throw-out lever 130 fractures；Rear sleeve in described sample introduction needle 120 is provided with rubber tube
122, it is possible to prevent sample introduction needle 120 from fractureing；The first guide rail 141 He it is provided with in the both sides of described cylinder 110
Second guide rail 142, it is possible to limiting push rod 130 and slide axially along cylinder 110, anti-throw-out lever 130 bends.
Although embodiment of the present utility model is disclosed as above, but it is not restricted to description and reality
Executing listed in mode utilization, it can be applied to various applicable field of the present utility model completely, for
For those skilled in the art, it is easily achieved other amendment, therefore without departing substantially from claim
And under the general concept that limited of equivalency range, this utility model is not limited to specific details and shows here
The legend gone out and describe.
Claims (7)
1. a microsyringe, it is characterised in that including:
Cylinder, its front end is provided with cone mouth, and end is provided with opening, and inside is provided with cavity volume, is used for accommodating sample；
Sample introduction needle, it is connected with the cone mouth of described cylinder at the pintle of end by being provided with；
Push rod, its front portion is stretched in cavity volume, and end is provided with push handle, is used for sucking the sample into or releasing cavity volume；
Wherein, described push rod is reducing bar, and anterior thin, rear portion is thick, the shape of described cavity volume and push rod phase
Coupling.
Microsyringe the most according to claim 1, it is characterised in that also include:
Rubber tube, it is set in the rear portion of described sample introduction needle, is used for preventing sample introduction needle from fractureing.
Microsyringe the most according to claim 1 and 2, it is characterised in that also include:
First guide pillar and the second guide pillar, it is respectively parallel to push rod and is arranged on the both sides of cylinder, end difference
It is fixed in described push handle, is used for limiting push rod and slides axially along cylinder；
First guide pin bushing and the second guide pin bushing, it is arranged on the middle part of cylinder, is respectively used to support described first and leads
Post and the second guide pillar.
Microsyringe the most according to claim 3, it is characterised in that: at described first guide pin bushing and
It is respectively equipped with sliding bearing in second guide pin bushing.
Microsyringe the most according to claim 3, it is characterised in that: at described first guide pillar and
The front end of the second guide pillar is respectively equipped with limited block.
Microsyringe the most according to claim 1 and 2, it is characterised in that: before described push handle
End is provided with yielding rubber, and described yielding rubber is for abutting against with described opening.
Microsyringe the most according to claim 1 and 2, it is characterised in that: on described cylinder
It is provided with graduation mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296273.XU CN205538862U (en) | 2016-04-08 | 2016-04-08 | Micro sample injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296273.XU CN205538862U (en) | 2016-04-08 | 2016-04-08 | Micro sample injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538862U true CN205538862U (en) | 2016-08-31 |
Family
ID=56791133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620296273.XU Expired - Fee Related CN205538862U (en) | 2016-04-08 | 2016-04-08 | Micro sample injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205538862U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918900A (en) * | 2018-07-20 | 2018-11-30 | 蒋春云 | It is a kind of can automatic erasing sampling probe side wall hang drop AIDS sample processing apparatus |
| CN112275340A (en) * | 2020-10-04 | 2021-01-29 | 电子科技大学 | Portable handheld micro-droplet generation device and method |
-
2016
- 2016-04-08 CN CN201620296273.XU patent/CN205538862U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918900A (en) * | 2018-07-20 | 2018-11-30 | 蒋春云 | It is a kind of can automatic erasing sampling probe side wall hang drop AIDS sample processing apparatus |
| CN108918900B (en) * | 2018-07-20 | 2021-07-27 | 蒋春云 | AIDS sample processing device capable of automatically wiping sidewall hanging drop of sampling needle |
| CN112275340A (en) * | 2020-10-04 | 2021-01-29 | 电子科技大学 | Portable handheld micro-droplet generation device and method |
| CN112275340B (en) * | 2020-10-04 | 2021-08-17 | 电子科技大学 | Portable handheld micro-droplet generation device and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20170408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |