CN2494699Y - Anti-corrosion glass sealing pipe - Google Patents
Anti-corrosion glass sealing pipe Download PDFInfo
- Publication number
- CN2494699Y CN2494699Y CN 01262693 CN01262693U CN2494699Y CN 2494699 Y CN2494699 Y CN 2494699Y CN 01262693 CN01262693 CN 01262693 CN 01262693 U CN01262693 U CN 01262693U CN 2494699 Y CN2494699 Y CN 2494699Y
- Authority
- CN
- China
- Prior art keywords
- inner plug
- enclosing cover
- cover
- plug
- sealing
- 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
- 239000011521 glass Substances 0.000 title claims abstract description 15
- 238000005260 corrosion Methods 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 title abstract description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 9
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 5
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000032683 aging Effects 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 230000002421 anti-septic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Gasket Seals (AREA)
Abstract
An anticorrosion glass sealing tube is composed of tube body and sealing cover. The closure comprises an outer cap and an inner plug which are integral, typically in a threaded connection. The inner wall of the outer cover and the outer edge of the pipe orifice of the pipe body are provided with connecting threads, and the rotating directions of the two threads are opposite. The inner plug can be a cone, a small end of the cone extends into the pipe body, or a cylinder, and 2-3 circumferential convex hoops are arranged on the outer surface of the inner plug. The inner plug is made of polytetrafluoroethylene. The utility model discloses the enclosing cover is reliably connected with the body, and it is intraductal that the interior stopper compresses tightly to stretch into by the enclosing cover, and the leakproofness is good. When the test tube is heated, the inner plug also expands to a certain extent to seal better. The inner plug has good elasticity, corrosion resistance, difficult aging and long service life. The technical problems of unreliable and unsafe sealing of the prior mill-mouth type and screw-mouth type sealing tubes are solved.
Description
Technical field
The utility model relates to a kind of glass capsulation pipe fitting, especially for the Anti-corrosion glass sealing test tube of analytical instrument.
Background technology
At present, employed sealed tube generally has two kinds in the conventional analysis test: glass ground joint formula sealed tube and glass threaded sealing pipe, both constitute by body and seal cover.The former seal cover is the glass capsulation plug, when test tube need heat since invisible spectro air pressure raise can be with sealing-plug jack-up, and can't play sealing function, even solution take place and high-temperature gas overflows the danger of hurting sb.'s feelings; The latter's seal cover is the gland that has rubber sheet gasket, links to each other with body by screw thread, and when intraductal atmospheric pressure was higher, rubber sheet gasket still had the possibility of gas leakage, in addition, has also that rubber sheet gasket easily wears out, easily comes off, the shortcoming of antiseptic property difference.
Summary of the invention
The purpose of this utility model is to overcome weak point of the prior art, and the Anti-corrosion glass sealed tube of a kind of good airproof performance, safe and reliable, long service life is provided.
The technical solution of the utility model is: the Anti-corrosion glass sealed tube is made of body, seal cover, and seal cover comprises enclosing cover and Nei Sai, and both combine, and the mouth of pipe outer rim of enclosing cover inwall and body has connecting thread, and interior plug is anticorrosion elastomer.
Plug is threaded with enclosing cover in above-mentioned, and this screw thread is opposite with the connecting thread rotation direction of enclosing cover, body; Interior plug can be cone, and the cone small end stretches to body, also can be cylinder, and its outer surface has 2～3 road peripheral convex hoops; The material of interior plug is a polytetrafluoroethylene (PTFE).
Adopt technique scheme, enclosing cover is threaded with body, and is very reliable; In plug be cone-shaped or cylindric with protruding hoop, compress by enclosing cover and stretch in the pipe, good airproof performance, when test tube heated, certain expansion also took place in interior plug, better tightness.And interior plug adopts polytetrafluoroethylene (PTFE), good springiness, corrosion-resistant, difficult aging, long service life.
Description of drawings
Accompanying drawing is the utility model structural representation.
The specific embodiment
As figure, the utility model is by body 3 and comprise that the seal cover of enclosing cover 1, interior plug 2 constitutes.Enclosing cover 1 and Nei Sai 2 are threaded, and enclosing cover 1 also is threaded with the mouth of pipe of body 3, and two thread rotary orientations are opposite, in case in unloading when covering plug from outside cover and come off.Interior plug is cone, and small end puts in body, adopts polytetrafluoroethylene (PTFE) to make.
Claims (5)
1, a kind of Anti-corrosion glass sealed tube is made of body, seal cover, it is characterized in that seal cover comprises enclosing cover and Nei Sai, and both combine, and the mouth of pipe outer rim of enclosing cover inwall and body has connecting thread, and interior plug is anticorrosion elastomer.
2, by the described Anti-corrosion glass sealed tube of claim 1, it is characterized in that Nei Sai is threaded with enclosing cover, this screw thread is opposite with the connecting thread rotation direction of enclosing cover, body.
3, by the described Anti-corrosion glass sealed tube of claim 1, plug stretches to body for cone, cone small end in it is characterized in that.
4, by the described Anti-corrosion glass sealed tube of claim 1, plug is cylinder in it is characterized in that, its outer surface has 2～3 road peripheral convex hoops.
5, by the described Anti-corrosion glass sealed tube of claim 1, the plug material is a polytetrafluoroethylene (PTFE) in it is characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01262693 CN2494699Y (en) | 2001-09-12 | 2001-09-12 | Anti-corrosion glass sealing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01262693 CN2494699Y (en) | 2001-09-12 | 2001-09-12 | Anti-corrosion glass sealing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2494699Y true CN2494699Y (en) | 2002-06-12 |
Family
ID=33670402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01262693 Expired - Fee Related CN2494699Y (en) | 2001-09-12 | 2001-09-12 | Anti-corrosion glass sealing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2494699Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307397C (en) * | 2003-05-23 | 2007-03-28 | 诺亚公司 | Flat closed heat pipe and its producing method |
| CN1943517B (en) * | 2005-10-08 | 2010-11-24 | 联合基因生物科技(上海)有限公司 | Reagent kid for self collecting oral mucosa cell and nucleic acid pre-extracting and stablizing storage |
| CN101378837B (en) * | 2006-02-07 | 2011-11-23 | 萨斯特德特股份有限两合公司 | Sample vessel for accommodating small amounts of liquid for analyses |
| CN105498879A (en) * | 2016-03-05 | 2016-04-20 | 张洪美 | Centrifugal tube |
| CN105536901A (en) * | 2016-03-05 | 2016-05-04 | 张洪美 | Centrifugal tube |
| CN105728075A (en) * | 2016-03-05 | 2016-07-06 | 张洪美 | Centrifugal pipe |
| CN105728076A (en) * | 2016-03-05 | 2016-07-06 | 张洪美 | Centrifugal pipe |
| CN107913749A (en) * | 2017-12-05 | 2018-04-17 | 佛山科学技术学院 | A kind of cuvette construction |
-
2001
- 2001-09-12 CN CN 01262693 patent/CN2494699Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307397C (en) * | 2003-05-23 | 2007-03-28 | 诺亚公司 | Flat closed heat pipe and its producing method |
| CN1943517B (en) * | 2005-10-08 | 2010-11-24 | 联合基因生物科技(上海)有限公司 | Reagent kid for self collecting oral mucosa cell and nucleic acid pre-extracting and stablizing storage |
| CN101378837B (en) * | 2006-02-07 | 2011-11-23 | 萨斯特德特股份有限两合公司 | Sample vessel for accommodating small amounts of liquid for analyses |
| CN105498879A (en) * | 2016-03-05 | 2016-04-20 | 张洪美 | Centrifugal tube |
| CN105536901A (en) * | 2016-03-05 | 2016-05-04 | 张洪美 | Centrifugal tube |
| CN105728075A (en) * | 2016-03-05 | 2016-07-06 | 张洪美 | Centrifugal pipe |
| CN105728076A (en) * | 2016-03-05 | 2016-07-06 | 张洪美 | Centrifugal pipe |
| CN107913749A (en) * | 2017-12-05 | 2018-04-17 | 佛山科学技术学院 | A kind of cuvette construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |