CN203215171U - Gas circuit tee-joint of chromatographic instrument - Google Patents
Gas circuit tee-joint of chromatographic instrument Download PDFInfo
- Publication number
- CN203215171U CN203215171U CN 201320252619 CN201320252619U CN203215171U CN 203215171 U CN203215171 U CN 203215171U CN 201320252619 CN201320252619 CN 201320252619 CN 201320252619 U CN201320252619 U CN 201320252619U CN 203215171 U CN203215171 U CN 203215171U
- Authority
- CN
- China
- Prior art keywords
- gas circuit
- joint
- straight pipe
- chromatographic instrument
- metal straight
- 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
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
A gas circuit tee-joint of a chromatographic instrument comprises a metal straight pipe and cylindrical connecting holes which are formed in the metal straight pipe. The gas circuit tee-joint is characterized in that the gas circuit tee-joint of the chromatographic instrument comprises the metal straight pipe, and three holes are formed in the metal straight pipe and communicated with one another. The three holes are the cylindrical connecting holes and connected with an air pipe, and inner diameters of the cylindrical connecting holes are larger than that of an internal pipe cavity of the straight pipe. The gas circuit tee-joint has the advantages that the gas circuit tee-joint of the chromatographic instrument is simple in structure, easy to install, good in sealing performance and airtight, the soundness of connection of the gas circuit tee-joint of the chromatographic instrument with the air pipe is improved, the size of the gas circuit tee-joint of the chromatographic instrument is further reduced, metal materials are saved, process procedures are reduced, and the product cost is reduced.
Description
Affiliated technical field:
The utility model relates to a kind of gas circuit threeway, especially a kind of cylindrical and chromatograph gas circuit threeway that internal diameter is very little.
Background technique:
At present, known chromatograph gas circuit three is connected with three joints, and each joint is provided with a nut, in order to connect and fixing breathing pipe.The chromatograph gas circuit threeway volume of this three joints is bigger, and the sealing of breathing pipe and chromatograph gas circuit threeway junction is poor, easily gas leakage.
Summary of the invention:
It is little that the purpose of this utility model provides a kind of volume, and simple structure is easy to install, and soundness is strong, the threeway of gastight chromatograph gas circuit.
For achieving the above object, the technical solution adopted in the utility model is:
The threeway of a kind of chromatograph gas circuit comprises the cylindrical connection mouth on metal straight pipe and the metal straight pipe, it is characterized in that: the threeway of chromatograph gas circuit is a metal straight pipe, is provided with three holes at metal straight pipe.
According to the threeway of described chromatograph gas circuit, it is characterized in that: respectively there is a hole its two ends of described metal straight pipe and centre, and three holes interconnect.
According to the threeway of described chromatograph gas circuit, it is characterized in that: described three holes are cylindrical connection mouth, and the internal diameter of cylindrical connection mouth is greater than the internal diameter of straight tube interior lumen.
The beneficial effects of the utility model are, this chromatograph gas circuit threeway simple structure, be easy to install, improved the soundness that the threeway of chromatograph gas circuit combines with breathing pipe, good seal performance, air tight, and the volume of the further contractive color spectrometer gas circuit threeway of energy, save metallic material, reduce technological process, reduce product cost.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is perpendicular sectional structure schematic representation of the present utility model.
Fig. 2 is the structural representation that the utility model is connected with breathing pipe.
1 metal straight pipe, 2 cylindrical connection mouths, 3 interior lumen, 4 breathing pipes, 5 soldering points among the figure.
Embodiment:
In Fig. 1,2, the threeway of a kind of chromatograph gas circuit comprises the cylindrical connection mouth on metal straight pipe and the metal straight pipe.The threeway of chromatograph gas circuit is a metal straight pipe 1, respectively establish a hole in two ends and the centre of metal tube straight tube 1, and three holes interconnects.Three holes are cylindrical connection mouth 2, and the internal diameter of cylindrical connection mouth 2 is greater than the internal diameter of metal straight pipe interior lumen 3.One end of breathing pipe 4 inserts cylindrical connection mouth 2, and adopts silver soldering to connect, and soldering point 5 welds breathing pipe 4 and cylindrical connection mouth 2 solid, and sealing is dead, prevents threeway gas leakage.
Claims (2)
1. chromatograph gas circuit threeway comprises the cylindrical connection mouth on metal straight pipe and the metal straight pipe, it is characterized in that: the threeway of chromatograph gas circuit is a metal straight pipe, at metal straight pipe three holes is arranged, and three holes interconnect.
2. according to the threeway of the described chromatograph gas circuit of claim 1, it is characterized in that: described three holes are cylindrical connection mouth, and the internal diameter of cylindrical connection mouth is greater than the internal diameter of straight tube interior lumen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320252619 CN203215171U (en) | 2013-04-27 | 2013-04-27 | Gas circuit tee-joint of chromatographic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320252619 CN203215171U (en) | 2013-04-27 | 2013-04-27 | Gas circuit tee-joint of chromatographic instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203215171U true CN203215171U (en) | 2013-09-25 |
Family
ID=49204709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320252619 Expired - Fee Related CN203215171U (en) | 2013-04-27 | 2013-04-27 | Gas circuit tee-joint of chromatographic instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203215171U (en) |
-
2013
- 2013-04-27 CN CN 201320252619 patent/CN203215171U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20140427 |