CN205780904U - A kind of high anti-rotten compound seal vacuum valve - Google Patents
A kind of high anti-rotten compound seal vacuum valve Download PDFInfo
- Publication number
- CN205780904U CN205780904U CN201620522281.1U CN201620522281U CN205780904U CN 205780904 U CN205780904 U CN 205780904U CN 201620522281 U CN201620522281 U CN 201620522281U CN 205780904 U CN205780904 U CN 205780904U
- Authority
- CN
- China
- Prior art keywords
- vacuum valve
- valve
- high anti
- compound seal
- seal vacuum
- 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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Abstract
This utility model relates to a kind of high anti-rotten compound seal vacuum valve, is specifically related to the vacuum valve of a kind of polytetrafluoroethylsealed sealed part and rubber seal compound seal.It is to have in pipeline opening one to be arranged on seat bottom portion fluid inlet tube road junction and fluid, and opening is relative with spool, and another mouth of pipe is arranged on body wall；Composite seal includes outside two RUBBER O RunddichtringOs, two tetrafluoro O RunddichtringOs, and tetrafluoro O RunddichtringO rubber-coated O RunddichtringO.The product of the design has the advantages such as erosion resistance strong, good airproof performance, length in service life.
Description
Technical field
This utility model relates to a kind of high anti-rotten compound seal vacuum valve, is specifically related to the vacuum valve of a kind of polytetrafluoroethylsealed sealed part and rubber seal compound seal.Belong to machine-building design and high molecular polymer shaping technology field.
Background technology
In various scientific experimentss, chemical experiment is one of important experimentation.But in chemical experiment, instrument and equipment is requisite experimental tool in experimentation.The liquid valve especially controlling chemical reagent amount in experimentation highlights especially.Should seal its requirement, the most anti-corruption, but existing liquid valve exists erosion resistance by force, some valve bodies use particulate metal, and long-time use still has corrosion and silting.Especially its seal washer is mostly elastomeric material, and after using a period of time, rubber corrodes and blow-by.As used the anti-rotten material of hard as sealing member material, its sealing effectiveness is the most not ideal.Therefore it is thought that use soft elastomeric material to seal, use quality relatively hard materials to carry out anti-rotten way and overcome above-mentioned scarce limit.And the realization of this imagination, specific technique to be relied on to do and to ensure.This utility model proposes specific liquid valve and specific processing technology according to this guiding theory exactly.
Summary of the invention
The purpose of this utility model is to propose a kind of high anti-rotten compound seal vacuum valve, it be the way using the rubber-coated sealing ring of polytetrafluoroethylsealed sealed circle to realize compound seal, not only solved to seal but also achieve anti-corruption.
To achieve these goals, this utility model is by the following technical solutions: a kind of high anti-rotten compound seal vacuum valve, it includes: valve body, valve seat, spool, nut, composite seal, fluid inlet and outlet piping.
In this utility model, described fluid inlet tube road junction and fluid go out to have in pipeline opening one to be arranged on seat bottom portion, and opening is relative with spool, and another mouth of pipe is arranged on body wall；Described composite seal includes two RUBBER O RunddichtringOs and two tetrafluoro O RunddichtringOs, and tetrafluoro O RunddichtringO rubber-coated O RunddichtringO.
This utility model is connected for thread counterclockwise between spool with nut.
This utility model is connected for positive thread between valve body with nut.
In this utility model spool be provided with bottom valve base cavity be close to mutually close coordinate the conical surface.
The thread that in this utility model, spool engages with nut is closely-pitched.
The thread that in this utility model, valve body engages with nut is coarse thread.
In this utility model, valve body, valve seat are glass material.
In this utility model, spool is PTFE.
The product of the design has the advantages such as erosion resistance strong, good airproof performance, length in service life.
Accompanying drawing explanation
Accompanying drawing 1 is the design valve-closed state front sectional view,
Accompanying drawing 2 is the design valve open mode front sectional view.
In accompanying drawing, 1 valve seat, 2 spools, 3 valve seats coordinate the conical surface, 4 nuts, 5 RUBBER O RunddichtringOs, 6 tetrafluoro O RunddichtringOs, and 7 spools coordinate the conical surface, 8 valve bodies.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the design is described further: as shown in accompanying drawing 1 or 2, nut 4 inner core sets outer tooth, the outside of nut 4 is provided with interior tooth, spool 2 is screwed on nut 4 inner core by thread counterclockwise, valve seat 1 upper end screwed outside nut 4 by thread clockwise on tooth, so can move up and down by rotating nut 4 band movable valve plug 2, it is achieved coordinate with valve seat the conical surface 3 to coordinate with spool close with note separating of the conical surface 7, i.e. achieve the opening and closing of vacuum valve.Having one to be arranged on bottom valve seat 1 in liquid in-out pipeline opening on valve seat 1, and opening is relative with spool 2, another mouth of pipe is arranged on valve body 8 sidewall；Two RUBBER O RunddichtringOs 5 and two tetrafluoro O RunddichtringOs 6 constitute composite seal, and the rubber-coated O RunddichtringO 5 of tetrafluoro O RunddichtringO 6.Friction during so spool 2 moves up and down and between valve body 1 changes into the friction between tetrafluoro O RunddichtringO 6 and valve body 2, corrosive liquid in valve pocket directly contacts with tetrafluoro O RunddichtringO 6, prevent the corrosion of RUBBER O RunddichtringO 5, and the high resiliency of RUBBER O RunddichtringO 5 achieves the effective sealing between sealing system and spool 2, valve body 1.
Claims (8)
1. one kind high anti-rotten compound seal vacuum valve, it includes: valve body, valve seat, spool, nut, composite seal, fluid inlet and outlet piping, it is characterised by: fluid inlet tube road junction and fluid go out to have to be arranged on a seat bottom portion in pipeline opening, and opening is relative with spool, another mouth of pipe is arranged on body wall
；Composite seal includes outside two RUBBER O RunddichtringOs, two tetrafluoro O RunddichtringOs, and tetrafluoro O RunddichtringO rubber-coated O RunddichtringO.
2. a kind of high anti-rotten compound seal vacuum valve as claimed in claim 1, is characterised by: be connected for thread counterclockwise between described spool and nut.
3. a kind of high anti-rotten compound seal vacuum valve as claimed in claim 1, is characterised by: be connected for thread clockwise between described valve body and nut.
4. anti-rotten compound seal vacuum valve as claimed in claim 1 a kind of high, is characterised by: described spool be provided with bottom valve base cavity be close to mutually conjunction coordinate the conical surface.
5. a kind of high anti-rotten compound seal vacuum valve as claimed in claim 1 or 2, is characterised by: the thread that described spool engages with nut is closely-pitched.
6. a kind of high anti-rotten compound seal vacuum valve as described in claim 1 or 3, is characterised by: the thread that described valve body engages with nut is coarse thread.
7. a kind of high anti-rotten compound seal vacuum valve as claimed in claim 1, is characterised by: described valve body, valve seat are glass material.
8. a kind of high anti-rotten compound seal vacuum valve as described in claim 1 or 3, is characterised by: described spool is PTFE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620522281.1U CN205780904U (en) | 2016-06-01 | 2016-06-01 | A kind of high anti-rotten compound seal vacuum valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620522281.1U CN205780904U (en) | 2016-06-01 | 2016-06-01 | A kind of high anti-rotten compound seal vacuum valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780904U true CN205780904U (en) | 2016-12-07 |
Family
ID=58137092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620522281.1U Expired - Fee Related CN205780904U (en) | 2016-06-01 | 2016-06-01 | A kind of high anti-rotten compound seal vacuum valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307101A (en) * | 2018-12-11 | 2019-02-05 | 南通亚威机械制造有限公司 | A kind of sealing structure with pressure valve |
-
2016
- 2016-06-01 CN CN201620522281.1U patent/CN205780904U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307101A (en) * | 2018-12-11 | 2019-02-05 | 南通亚威机械制造有限公司 | A kind of sealing structure with pressure valve |
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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: 20161207 Termination date: 20170601 |