CN204276003U - Unidirectional device of air - Google Patents
Unidirectional device of air Download PDFInfo
- Publication number
- CN204276003U CN204276003U CN201420659845.7U CN201420659845U CN204276003U CN 204276003 U CN204276003 U CN 204276003U CN 201420659845 U CN201420659845 U CN 201420659845U CN 204276003 U CN204276003 U CN 204276003U
- Authority
- CN
- China
- Prior art keywords
- check valve
- air inlet
- air
- unidirectional device
- escape pipe
- 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 relates to a kind of unidirectional device of air, described unidirectional device of air includes test bottle (1), the bottle plug of described test bottle (1) is equipped with rubber stopper (2), the upper cross-under of described rubber stopper (2) has air inlet pipe (3) and escape pipe (4), check valve one (5.1) is installed in described air inlet pipe (3), the air inlet port of described air inlet pipe (3) is provided with switch valve (5.4), check valve two (5.2) and check valve three (5.3) are installed in described escape pipe (4), the tube wall of described escape pipe (4) is provided with rubber bladder (6) being positioned at place between check valve two (5.2) and check valve three (5.3).A kind of unidirectional device of air of the utility model, has and measures accurate advantage.
Description
Technical field
The utility model relates to a kind of unidirectional device of air, belongs to lab-size equipment technical field.
Background technology
At present, in an experiment, often need the content measuring certain material, such as measure the content of calcium carbonate in lime stone, now, lime stone and hydrochloric acid are put into test bottle react, the carbon dioxide produced passes in NaOH and absorbs, thus the content of calcium carbonate is calculated by the weight of the carbon dioxide recorded, theoretically, this type of measures the experiment of content, all measure by above-mentioned similar fashion, but, in practical measurement process, find, due to the remaining gas that responds of meeting (carbon dioxide such as talked about above) in test bottle and conduit, so there is larger error by causing measuring.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and measures accurate unidirectional device of air.
The purpose of this utility model is achieved in that
A kind of unidirectional device of air, described unidirectional device of air includes test bottle, the bottle plug of described test bottle is equipped with rubber stopper, on described rubber stopper, cross-under has air inlet pipe and escape pipe, check valve one is installed in described air inlet pipe, the air inlet port of described air inlet pipe is provided with switch valve, is provided with check valve two and check valve three in described escape pipe, the tube wall of described escape pipe is provided with rubber bladder at place between check valve two and check valve three.
Compared with prior art, the beneficial effects of the utility model are:
Gas in test bottle can import in subsequent reactions thing by the utility model easily, so there is no residual gas, thus makes measurement more accurate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the unidirectional device of air of the utility model.
Wherein:
Test bottle 1, rubber stopper 2, air inlet pipe 3, escape pipe 4, rubber bladder 6;
Check valve 1, check valve 2 5.2, check valve 3 5.3, switch valve 5.4.
Detailed description of the invention
See Fig. 1, the unidirectional device of air of the one that the utility model relates to, described unidirectional device of air includes test bottle 1, the bottle plug of described test bottle 1 is equipped with rubber stopper 2, on described rubber stopper 2, cross-under has air inlet pipe 3 and escape pipe 4, in described air inlet pipe 3, check valve 1 is installed, the air inlet port of described air inlet pipe 3 is provided with switch valve 5.4, check valve 2 5.2 and check valve 3 5.3 are installed in described escape pipe 4, the tube wall of described escape pipe 4 is provided with rubber bladder 6(as the Capsule structure of dropper top for extruding at place between check valve 2 5.2 and check valve 3 5.3),
Operation principle of the present utility model is:
Reactant is arranged in test bottle 1, and the existence of check valve 1, check valve 2 5.2 and check valve 3 5.3 makes gas flow can only flow via air inlet pipe 3, test bottle 1, escape pipe 4, after reacting completely in test bottle 1, closing switch valve 5.4, extruding rubber bladder 6, thus make the gas in escape pipe 4 enter in subsequent reactions thing via escape pipe 4, unclamp rubber bladder 6 subsequently, now escape pipe 4 produces negative pressure at check valve 2 5.2 and check valve 3 5.3, test bottle 1 gas is made to enter in the region of escape pipe 4 between check valve 2 5.2 and check valve 3 5.3, again extrude rubber bladder 6 subsequently, this portion gas can be broken through check valve 3 5.3 under pressure and enter in subsequent reactions thing, repeat above-mentionedly unclamp rubber bladder 6 and extrude, all gas in test bottle 1 can be imported in subsequent reactions thing, thus make measurement more accurate.
In addition: it should be noted that above-mentioned detailed description of the invention is only a prioritization scheme of this patent, any change that those skilled in the art does according to above-mentioned design or improvement, all within the protection domain of this patent.
Claims (1)
1. a unidirectional device of air, described unidirectional device of air includes test bottle (1), the bottle plug of described test bottle (1) is equipped with rubber stopper (2), the upper cross-under of described rubber stopper (2) has air inlet pipe (3) and escape pipe (4), it is characterized in that: check valve one (5.1) is installed in described air inlet pipe (3), the air inlet port of described air inlet pipe (3) is provided with switch valve (5.4), check valve two (5.2) and check valve three (5.3) are installed in described escape pipe (4), the tube wall of described escape pipe (4) is provided with rubber bladder (6) being positioned at place between check valve two (5.2) and check valve three (5.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420659845.7U CN204276003U (en) | 2014-11-07 | 2014-11-07 | Unidirectional device of air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420659845.7U CN204276003U (en) | 2014-11-07 | 2014-11-07 | Unidirectional device of air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204276003U true CN204276003U (en) | 2015-04-22 |
Family
ID=52859203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420659845.7U Expired - Fee Related CN204276003U (en) | 2014-11-07 | 2014-11-07 | Unidirectional device of air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204276003U (en) |
-
2014
- 2014-11-07 CN CN201420659845.7U patent/CN204276003U/en not_active Expired - Fee Related
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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: 20150422 Termination date: 20151107 |
|
| EXPY | Termination of patent right or utility model |