CN2593192Y - Gas sampling joint - Google Patents
Gas sampling joint Download PDFInfo
- Publication number
- CN2593192Y CN2593192Y CN 02295490 CN02295490U CN2593192Y CN 2593192 Y CN2593192 Y CN 2593192Y CN 02295490 CN02295490 CN 02295490 CN 02295490 U CN02295490 U CN 02295490U CN 2593192 Y CN2593192 Y CN 2593192Y
- Authority
- CN
- China
- Prior art keywords
- nut
- gas sampling
- joint
- sampling joint
- needle
- 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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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a gas sampling joint, which is composed of an injection needle, a thread joint, a sealing pad, a nut and a thin pipe, wherein, a needle of the injection needle is fixedly connected with a point of the thread joint; the sealing pad is arranged in the nut; the thread joint is connected with the nut by threads; the thin pipe is inserted and arranged in a nut central hole and the sealing pad. Therefore, the gas sampling joint has the advantages of simple structure, convenient operation, and accurate quantification.
Description
Technical field
The utility model relates to gas chromatograph, particularly a kind of Gas sampling joint.
Background technology
In the gas chromatographic analysis test, as the gaseous sample that thermal desorptioner is gathered, be the syringe needle that utilizes therapeutic medical ordinary syringe now, the sampling joint that inserts thermal desorptioner comes draw samples.There are two kinds of problems in this sampling mode: when 1. sealing when the syringe needle of extracting syringe out and with syringe needle, the gap of certain hour is always arranged, be higher than the leakage of can taking advantage of a loophole of atmospheric sample in the syringe, influenced the accuracy of sampling amount; 2. work as the packing washer of the repeatedly interspersed thermal desorptioner sampling of the syringe needle joint of syringe, packing washer stops up the syringe needle mesopore easily because of the broken molecule that produces, and sample just can't extract like this.
Summary of the invention
The utility model is used the existing technical matters of syringe extracting gases sample in order to solve, and a kind of sample connection that gaseous sample quantitatively can be sealed transfer is provided.
According to above-mentioned purpose, the utility model provides a kind of Gas sampling joint, constitute by injection needle, threaded connector, sealing gasket, nut, tubule, wherein the syringe needle of injection needle is fixedlyed connected with the threaded connector tip, sealing gasket is placed in the nut, threaded connector and nut be by being threaded, and tubule interts and is installed on nut mesopore and sealing gasket.The utility model has been owing to taked above technical measures, so Gas sampling joint has simple in structure, easy to operate, quantitative advantage accurately.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
As shown in the figure, the syringe needle of therapeutic medical common No. 20 entry needles 1 and general threaded connector 2 most advanced and sophisticated integrally welded, silica gel sealing pad 3 is placed in the nut 4, again threaded connector 2 is screwed in the nut 4, and top tight sealing pad 3, then the entry needle tubule 5 by general two ends sharpening is interted and be installed on nut 4 mesopores and sealing gaskets 3, thereby constitute the Gas sampling joint of hollow.At the other end of entry needle 1, but the sampler of installation code volume sealing.During operation, the other end of tubule 5 is inserted thermal desorptioner sampling joint, the mesopore of sealing nut and packing washer, sampling is higher than atmospheric gaseous sample in the nipple orifice, mesopore by tubule 5, threaded connector 2, entry needle 1 injects sampler, tubule 5 is extracted from the sampling joint again, and then tubule 5 is extracted from Gas sampling joint, owing to the sealing of O-ring seal 3, can realize gaseous sample is quantitatively sealed the purpose of transfer.
Claims (1)
1, a kind of Gas sampling joint is characterized in that: be made of injection needle, threaded connector, sealing gasket, nut, tubule; Wherein the most advanced and sophisticated of the syringe needle of injection needle and threaded connector fixedlyed connected, and sealing gasket is placed in the nut, and threaded connector and nut are by being threaded interspersed nut mesopore and the sealing gasket of being installed on of tubule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02295490 CN2593192Y (en) | 2002-12-30 | 2002-12-30 | Gas sampling joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02295490 CN2593192Y (en) | 2002-12-30 | 2002-12-30 | Gas sampling joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2593192Y true CN2593192Y (en) | 2003-12-17 |
Family
ID=33752496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02295490 Expired - Fee Related CN2593192Y (en) | 2002-12-30 | 2002-12-30 | Gas sampling joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2593192Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034910A (en) * | 2014-05-27 | 2014-09-10 | 武汉矽感科技有限公司 | Detection equipment feeding system sealing method as well as feeding system, device and detection equipment |
| CN107099453A (en) * | 2017-04-30 | 2017-08-29 | 杭州泰林精密仪器有限公司 | A kind of aerosol sampling probe and the method for sampling |
-
2002
- 2002-12-30 CN CN 02295490 patent/CN2593192Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034910A (en) * | 2014-05-27 | 2014-09-10 | 武汉矽感科技有限公司 | Detection equipment feeding system sealing method as well as feeding system, device and detection equipment |
| CN107099453A (en) * | 2017-04-30 | 2017-08-29 | 杭州泰林精密仪器有限公司 | A kind of aerosol sampling probe and the method for sampling |
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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: 20031217 Termination date: 20100201 |