CN205919997U - Simple and easy autonomic negative pressure sampling bag - Google Patents
Simple and easy autonomic negative pressure sampling bag Download PDFInfo
- Publication number
- CN205919997U CN205919997U CN201620884460.XU CN201620884460U CN205919997U CN 205919997 U CN205919997 U CN 205919997U CN 201620884460 U CN201620884460 U CN 201620884460U CN 205919997 U CN205919997 U CN 205919997U
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- CN
- China
- Prior art keywords
- airbag
- negative pressure
- air pocket
- gas column
- gas
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- 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
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a simple and easy autonomic negative pressure sampling bag, including an air pocket, inside being equipped with of air pocket sets up and inflatable expanded gas column rather than keeping apart, the air inlet and the salient air pocket setting regularly of air pocket sealing connection of gas column, still be provided with the sample gas air inlet of fixing with air pocket sealing connection on the air pocket. The utility model discloses a principle relies on to inflate for the gas column, forms the air pocket negative pressure for the automatic air pocket that flows in of outside sample gas, thus realize independently negative pressure sampling, need not with the help of large -scale box and auxiliary device, the greatly reduced cost can directly use to make convenient to use.
Description
Technical field
This utility model is related to one kind easily autonomous negative pressure sampler bag.
Background technology
Negative pressure is sampled, and application is general all to collect in the gas-monitoring of easy absorption, if malleation sample gas need
By the gas collecting device such as pump or double-strand ball, and the material for object gas of pump and double-strand ball and airbag is (in environment
Air quality trace monitors field, and the material of general airbag is all fep, i.e. Teflon fep, few to the adsorbance of gas, can
Reach ppb rank) different, easily cause the absorption of sample gas.For preventing the absorption from sampling apparatuses, therefore negative pressure sampling is
Following trend, in the relevant proposed standard of national hand sampling, also requires that negative pressure is sampled.Existing negative pressure sampling apparatuses are stupid
Weight, high cost high to supplemental equipment requirement.Large-scale environment is sampled simultaneously and brings high cost and more human input
's.
In environmental monitoring, according to standard, airbag method sampling request adopts negative pressure to sample, and negative pressure sampling can avoid adopting
The pollution of the sampling that sample power set bring.It is required for special sampling apparatuses in conventional negative pressure sampling, as shown in figure 1, handle
Sampling airbag 1 ＇ is placed in chest 2 ＇ in addition to valve, and then vacuum pump 3 ＇ is evacuated to chest 2 ＇, by the negative pressure of chest 2 ＇
Gas is promoted to enter sampling airbag 1 ＇ by valve.
Above-mentioned sampling apparatuses have the disadvantage in that
A, carry inconvenience, since it is desired that whole sampler bag is contained in casing, therefore casing ratio is larger, also will wrap simultaneously
Include vacuum pump, other auxiliary device such as battery.
B, high cost, by casing, vacuum pump, sampler bag, accumulator forms whole product needed.
C, seal request are high, singly do not require sampler bag to need to seal, same casing is also required to seal.Vacuum pump is with casing
All there is the risk comparing havoc sealing in the junction and sampler bag door taken out that puts in.
Content of the invention
This utility model provide a kind of easy to carry, reduce cost, using put just, design succinct easily autonomous
Negative pressure sampler bag.
The technical solution adopted in the utility model is:
One kind easily autonomous negative pressure sampler bag, including an airbag it is characterised in that: be provided with inside described airbag with its every
From the gas column arranging simultaneously inflatable, the air inlet of described gas column and airbag protrude airbag setting, institute with being sealedly connected and fixed
State and the sample gas air inlet being sealedly connected and fixed with airbag is additionally provided with airbag.Principle of the present utility model is to rely on to gas column
Inflation, forms airbag negative pressure so that external sample gas automatically flows into airbag, thus realizing autonomous negative pressure sampling, without
Large-size box and auxiliary device, substantially reduce cost, can be used directly so that easy to use.
Further, described airbag, gas column, gas column air inlet and sample gas air inlet are integrated formed structures so that gas
Close property is higher.
Further, described gas column is that the gas column insertion being differed by multiple directions is formed by connecting, the direction of the internal gas column of airbag
And thickness does not limit.
The beneficial effects of the utility model:
1st, easy to carry, the design of this airbag makes airbag inherently have the function of negative pressure sampling it is not necessary to by big case
Body, the airbag of unaerated even can be placed in pocket and carry.
2nd, design succinctly, can be by grinding tool one-shot forming so that air-tightness be higher.
3rd, cost reduces, and decreases auxiliary device so that cost is greatly lowered.
4th, easy to use, compare with original device, without the assembling of various auxiliary device, can directly use.
Brief description
Fig. 1 is the structural representation of conventional negative pressure sampling apparatuses.
Fig. 2 is the structural representation of airbag inside top after this utility model sampling.
Fig. 3 is the structural representation of the internal main view of airbag after this utility model sampling.
Specific embodiment
This utility model is further described with reference to specific embodiment, but this utility model is not limited to
In these specific embodiments.One skilled in the art would recognize that this utility model covers in Claims scope
All alternatives, improvement project and the equivalents being potentially included.
Reference picture 2-3, one kind easily autonomous negative pressure sampler bag, including an airbag 1, it is provided with and it inside described airbag 1
Isolation setting the gas column 2 of inflatable, air inlet 3 and the airbag 1 of described gas column 2 protrude airbag 1 with being sealedly connected and fixed
Setting, described airbag 1 is additionally provided with the sample gas air inlet 4 being sealedly connected and fixed with airbag 1.Principle of the present utility model is
Relying on and inflate to gas column 2, forming airbag 1 negative pressure so that external sample gas 5 automatically flows into airbag 1, thus realizing autonomous negative pressure
Sampling, without large-size box and auxiliary device, substantially reduces cost, can be used directly so that easy to use.
Described in the present embodiment, airbag 1, gas column 2, the air inlet 3 of gas column and sample gas air inlet 4 are to be irrigated by grinding tool
Integrated formed structure is so that air-tightness is higher.
Gas column 2 described in the present embodiment is that gas column 2 insertion being differed by multiple directions is formed by connecting, the internal gas column 2 of airbag 1
Direction and thickness do not limit.What gas column 2 can be connected with airbag 1 is arranged on the placement that also can not do any connection in airbag 1
In airbag 1.
Airbag 1 of the present utility model on the premise of not inflating, airbag 1 even can shrink completely put into handbag carry to
Appointed place, very convenient carries.During use, inflated to gas column 2 by the air inlet 3 of gas column 2, in airbag 1, form negative pressure,
Sample gas 5 can automatically flow in airbag 1 from sample gas air inlet 4, as long as there being double-strand ball just can complete negative pressure sampling, no
Need to carry huge casing and pump and corresponding battery apparatus, greatly reduce cost and equipment volume, simple structure is light
Just, convenient to use.
Claims (3)
1. one kind easily autonomous negative pressure sampler bag, including an airbag it is characterised in that: be provided with inside described airbag and be isolated from it
Setting the gas column of inflatable, the air inlet of described gas column and airbag protrude airbag setting with being sealedly connected and fixed, described
The sample gas air inlet being sealedly connected and fixed with airbag is additionally provided with airbag.
2. the one kind according to claim 1 easily autonomous negative pressure sampler bag it is characterised in that: described airbag, gas column,
Gas column air inlet and sample gas air inlet are integrated formed structures.
3. the one kind according to claim 1 or 2 easily autonomous negative pressure sampler bag it is characterised in that: described gas column is
The gas column insertion being differed by multiple directions is formed by connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620884460.XU CN205919997U (en) | 2016-08-16 | 2016-08-16 | Simple and easy autonomic negative pressure sampling bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620884460.XU CN205919997U (en) | 2016-08-16 | 2016-08-16 | Simple and easy autonomic negative pressure sampling bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205919997U true CN205919997U (en) | 2017-02-01 |
Family
ID=57871001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620884460.XU Expired - Fee Related CN205919997U (en) | 2016-08-16 | 2016-08-16 | Simple and easy autonomic negative pressure sampling bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205919997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455592A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | Based on self-priming gas production bag and its application |
-
2016
- 2016-08-16 CN CN201620884460.XU patent/CN205919997U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455592A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | Based on self-priming gas production bag and its application |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20180816 |