CN206945364U - A kind of gradiometer amount sampling injector - Google Patents
A kind of gradiometer amount sampling injector Download PDFInfo
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- CN206945364U CN206945364U CN201720847028.8U CN201720847028U CN206945364U CN 206945364 U CN206945364 U CN 206945364U CN 201720847028 U CN201720847028 U CN 201720847028U CN 206945364 U CN206945364 U CN 206945364U
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- plunger
- fin
- outer barrel
- gradiometer
- sampling injector
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Abstract
A kind of gradiometer amount sampling injector is the utility model is related to, belongs to quantitative appliances technical field.Gradiometer amount sampling injector includes outer barrel and the plunger coordinated with the outer barrel, the plunger is elapsed vertically in the outer barrel；The rear end of the plunger is plunger frame, and the plunger frame is provided with longitudinally parallel fin；Extended on the outside of the fin at the inwall of the outer barrel and outer shape is set to waveform；The end of the outer tube inner wall is provided with the lug boss of circumferentially arc convex.Plunger lug boss when being acted without passage supports the side slip of trough one that plunger side waveform to outside fin is forced during to the non-trough of fin outer side edges, and lug boss is supported to stabilization during the trough of fin outer side edges, then the pushing distance of the plunger has fixed spacing gradient, take, the integral multiple change that injection amount is fixation, the metering of degree of precision can be conveniently realized according to space-number.
Description
Technical field
A kind of gradiometer amount sampling injector is the utility model is related to, belongs to quantitative appliances technical field.
Background technology
Tubular type syringe cost is low, easy to operate, and it is daily etc. to be widely used in medical treatment, scientific experiment, life.Its by
Basic outer tube, plunger and syringe needle is formed, and absorption agent sample and injection are realized by drawing, pushing away plunger.
In the prior art, syringe band function of measuring.For example usually use progress of the syringe in gas, liquid detecting
Quantitative sampling is administered to the work such as sample.It is transparent material that the outer tube of syringe, which is marked with scale and outer tube, is read by scale
The displacement of plunger is measured with realizing.But such a method relies on observation due to scale limited precision, caused by individual operates
Miss by a mile.Particularly in work is detected, often need to be demarcated with a certain amount of or repeatedly determine sample, thus
Problem then causes detection error.
In view of foregoing existing technical problem, should develop a kind of quantitative novel injector of convenience.
The content of the invention
The utility model provides a kind of quantitative gradiometer amount sampling injector of achievable degree of precision, used skill
Art scheme is：
A kind of gradiometer amount sampling injector, including front end are provided with the outer barrel that syringe needle connects mouth, and coordinate with the outer barrel
Plunger, the plunger is set to be elapsed vertically in the outer barrel；The rear end of the plunger is plunger frame, is set on the plunger frame
There is longitudinally parallel fin；Extended on the outside of the fin at the inwall of the outer barrel and outer shape is set to waveform；Institute
The end for stating the inwall of outer barrel is provided with the lug boss of circumferentially arc convex, makes plunger projection when being acted without passage
Portion is stable when supporting to the trough of fin outer side edges waveform, and forces when the lug boss is supported to the non-trough of fin outer side edges waveform
The side slip of trough one of plunger side waveform to outside fin, makes the pushing distance of the plunger have fixed spacing gradient.
Further, outer barrel is transparent material and which is provided with scale, to be measured with reference to plunger pushing distance；The quarter
The metric unit of degree and the wavelength of the outer side waveform of the fin are proportional relation., can be straight by scale as conventional syringe
Reading is connect, it is convenient and practical.
Further, the scale, its metric unit and the consistent wavelength of the outer side waveform of the fin.
Further, the fin, it carries over outside and is provided with bar hole, makes the outside of the fin have inside elasticity.
Further, the fin, its quantity are at least 3.The fin is uniformly distributed circumferentially.
Further, the front end of described plunger is provided with elastic chock plug, and the inwall of itself and the outer barrel is adjacent to closure.Pass through
Such a mode ensures closure；And make plunger frame that firmer material can be used, ensure structural stability, improve determining for plunger
Position precision.
Further, the elastic chock plug, its front end are provided with extension, and the shape of the extension connects mouth with the syringe needle
It is internally consistent, make the plunger elapse to syringe needle described in the extension during outer barrel bottom connect in mouth sample agent discharge.
Thus avoiding syringe needle from connecing the internal dead volumes of mouth causes sample agent remaining, causes error.
Compared with prior art, gradiometer amount sampling injector of the present utility model at least has the advantages that：
(1) because the pushing distance of the plunger has fixed spacing gradient, that is, take, injection amount is fixed integral multiple
Change, can easily measure according to space-number, avoids off scale from causing error, therefore have higher measuring accuracy；
(2) shallower fin outer side edges coordinate the lug boss on the inside of outer barrel to carry out screens along waveform, coordinate the bar hole carried over
Make outer side edges that there is the elasticity of longitudinal direction along waveform, keep plunger passage smooth, while realize good limit effect, ensure that behaviour
The facility made and measured；
(3) operating habit of conventional syringe, convenient use are retained；
(4) compared with existing syringe, excessive parts are not increased, simple in construction, manufacture easy to process, cost is cheap.
In summary, the utility model provides the gradiometer amount sampling injector of a set of achievable degree of precision, has height
Effect, wide applicability.
Brief description of the drawings
Fig. 1 is a kind of structural representation of gradiometer amount sampling injector in the utility model.
Embodiment
For technological means and beneficial effect of the present utility model is expanded on further, below in conjunction with accompanying drawing and preferred embodiment,
A kind of gradiometer amount sampling injector of the present utility model is described in detail：
As shown in Figure 1, gradiometer amount sampling injector includes outer barrel 1 and plunger；Plunger can be in outer barrel 1 vertically
Passage；Outer cylinder front end meets mouth 1-a provided with syringe needle；Outer barrel is transparent material and is provided with scale.Plunger includes the elastic chock plug 2 of front end
And the plunger frame 3 of rear end, the inwall of elastic chock plug 2 and outer barrel 1 are adjacent to closure；The front end of elastic chock plug 2 is provided with extension 2-a,
Extension 2-a shape connects the internally consistent of mouth 1-a with syringe needle, plunger is elapsed to during 1 bottom of outer barrel and connects syringe needle in mouth 1-a
Sample agent discharge.
Plunger frame 3 is provided with 3 fin 3-a that are longitudinally parallel and being uniformly distributed circumferentially.Extended on the outside of fin 3-a
The inwall of outer barrel 1 and outer side edges 3-b shape are set to waveform；The end of the inwall of outer barrel 1 is provided with the projection of circumferentially arc convex
Portion 1-b；Fin 3-a carries over outer side edges 3-b and is provided with bar hole 3-c, outer side edges 3-b is had inside elasticity.
Lug boss 1-b forces plunger to make pushing away for plunger to the side slip of trough one when supporting to fin outer side edges 3-b non-trough
Moving distance has fixed spacing gradient；And lug boss 1-b is supported to plunger position stabilization during outer side edges wave trough position.Due to plunger
Pushing distance there is fixed spacing gradient, that is, take, injection amount is fixed integral multiple change, can be facilitated according to space-number
Realize the metering of degree of precision in ground；The metric unit of scale on outer barrel 1 and fin outer side edges 3-b consistent wavelength, with reference to post
The pushing distance of plug is to measure, by scale direct quantitative reading.
Above description is specific embodiment of the present utility model, is respectively illustrated not in essence of the present utility model
Appearance is construed as limiting.
Claims (8)
1. a kind of gradiometer amount sampling injector, including front end are provided with the outer barrel that syringe needle connects mouth, and the post coordinated with the outer barrel
Plug, makes the plunger to be elapsed vertically in the outer barrel；Characterized in that,
The rear end of the plunger is plunger frame, and the plunger frame is provided with longitudinally parallel fin；
Extended on the outside of the fin at the inwall of the outer barrel and outer shape is set to waveform；
The end of the inwall of the outer barrel is provided with the lug boss of circumferentially arc convex, the plunger is being acted when institute without passage
Lug boss is stated to support to stabilization during the trough of fin outer side edges waveform, and the lug boss is supported to the non-trough of fin outer side edges waveform
When force the side slip of trough one of plunger side waveform to outside fin, make the pushing distance of the plunger there is fixed gradient
Interval.
2. gradiometer amount sampling injector as claimed in claim 1, it is characterised in that the outer barrel is transparent material, and institute
State outer barrel and be provided with scale, measured with the pushing distance with reference to the plunger；
The scale, its metric unit and the wavelength of the outer side waveform of the fin are proportional relation.
3. gradiometer amount sampling injector as claimed in claim 2, it is characterised in that the scale, its metric unit and institute
State the consistent wavelength of the outer side waveform of fin.
4. gradiometer amount sampling injector as claimed in claim 1, it is characterised in that the fin, it carries over outside and is provided with
Bar hole, makes the outside of the fin have inside elasticity.
5. gradiometer amount sampling injector as claimed in claim 1, it is characterised in that the fin, its quantity are at least 3
Piece.
6. gradiometer amount sampling injector as claimed in claim 5, it is characterised in that the fin is uniformly distributed circumferentially.
7. gradiometer amount sampling injector as claimed in claim 1, it is characterised in that the front end of described plunger is provided with elasticity
Chock plug, the inwall of itself and the outer barrel are adjacent to closure.
8. gradiometer amount sampling injector as claimed in claim 7, it is characterised in that the elastic chock plug, its front end are provided with
Extension, the shape of the extension connect the internally consistent of mouth with the syringe needle, the plunger is elapsed to the outer barrel bottom
The sample agent that Shi Suoshu extensions connect the syringe needle in mouth is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847028.8U CN206945364U (en) | 2017-07-13 | 2017-07-13 | A kind of gradiometer amount sampling injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847028.8U CN206945364U (en) | 2017-07-13 | 2017-07-13 | A kind of gradiometer amount sampling injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206945364U true CN206945364U (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720847028.8U Active CN206945364U (en) | 2017-07-13 | 2017-07-13 | A kind of gradiometer amount sampling injector |
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| CN (1) | CN206945364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844782A (en) * | 2018-08-15 | 2018-11-20 | 成都赋阳技术开发有限公司 | A kind of sampling of water quality equipment for water quality detection |
-
2017
- 2017-07-13 CN CN201720847028.8U patent/CN206945364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844782A (en) * | 2018-08-15 | 2018-11-20 | 成都赋阳技术开发有限公司 | A kind of sampling of water quality equipment for water quality detection |
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