CN206816317U - A kind of seal valve stem - Google Patents
A kind of seal valve stem Download PDFInfo
- Publication number
- CN206816317U CN206816317U CN201720521631.7U CN201720521631U CN206816317U CN 206816317 U CN206816317 U CN 206816317U CN 201720521631 U CN201720521631 U CN 201720521631U CN 206816317 U CN206816317 U CN 206816317U
- Authority
- CN
- China
- Prior art keywords
- sealing lip
- valve stem
- seal valve
- inwall
- wear ring
- 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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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model provides a kind of seal valve stem, belongs to seal technical field.It solves the problems, such as sealing difference at the sealing lip of existing seal valve stem.This seal valve stem, including rubber bodies and the skeleton being wrapped in outside rubber bodies, the top of rubber bodies has sealing lip in conjunction, the top of skeleton has the location division to curve inwardly in embedding sealing lip, a turn, the tapered shape of inwall of sealing lip are arranged with the outer wall of sealing lip, and circle wear ring made of polytetrafluoroethylene (PTFE) is provided with the inwall of sealing lip, the trapezoidal shape in section of wear ring, the bottom surface of wear ring are bonded on the inwall of sealing lip after how sodium is handled.The utility model has high temperature resistant, and wearability is strong, the advantages of good airproof performance.
Description
Technical field
The utility model belongs to seal technical field, is related to a kind of oil sealing, more particularly to a kind of seal valve stem.
Background technology
Being usually mounted with air-valve guide-bar oil seal on engine inlet and outlet door guide rod prevents oil seepage from entering engine
Combustion chamber of air cylinder, cause oil level to decline, change fired state, produce over-emitting black exhaust phenomenon.
In recent years, with the development of auto industry, acceleration control of the people to automobile engine speed requires more and more higher,
To improve the acceleration of car speed control, with the increase of oil-air pressure in piston cylinder, improved by engine turbine supercharging
Air input of engine by air, so as to improve the power of engine and moment of torsion, improve the operational efficiency of automobile.Existing plain edition valve is led
Bar oil sealing, its lip are easily scratched, and cause to leak so as to destroy sealing；Further, since the stroke of valve guide rod is larger, then
The lip heating of wedge angle sealing is serious, also causes sealing effectiveness undesirable.Therefore, a kind of gas that can solve the problem that above mentioned problem is designed
Door guide rod oil seal is necessary.
The content of the invention
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, there is provided a kind of high temperature resistant, it is wear-resisting
The strong seal valve stem of property.
The purpose of this utility model can be realized by following technical proposal：A kind of seal valve stem, including rubber bodies and
The skeleton being wrapped in outside rubber bodies, the top of described rubber bodies have sealing lip in conjunction, the top tool of the skeleton
There is the location division to curve inwardly in embedding sealing lip, it is characterised in that a spring is arranged with the outer wall of described sealing lip
Circle, the tapered shape of inwall of described sealing lip, and it is resistance to made of polytetrafluoroethylene (PTFE) that a circle is provided with the inwall of sealing lip
Bull ring, the trapezoidal shape in section of described wear ring, the bottom surface of wear ring are bonded in the inwall of sealing lip after how sodium is handled
On.
In a kind of above-mentioned seal valve stem, the thickness of described wear ring is 0.1mm between 0.5mm.
In a kind of above-mentioned seal valve stem, the material of described rubber bodies is fluorubber.
In a kind of above-mentioned seal valve stem, described skeleton is integrally formed using cold-rolled steel sheet.
Compared with prior art, this seal valve stem is additionally arranged wear-resisting made of polytetrafluoroethylene (PTFE) on sealing lip inwall
Ring, because polytetrafluoroethylene (PTFE) tool has good wearability and heat-resisting quantity, therefore improve the sealing at sealing lip.
Brief description of the drawings
Fig. 1 is the half section schematic of this seal valve stem.
In figure, 1, rubber bodies；2nd, skeleton；3rd, location division；4th, sealing lip；5th, turn；6th, wear ring.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, this seal valve stem, including the rubber bodies 1 and to be wrapped in rubber bodies 1 outer by cold made of fluorubber
The integrally formed skeleton 2 of rolled steel plate, the top of rubber bodies 1 have sealing lip 4 in conjunction, and the top of skeleton 2 has inwardly
The location division 3 in embedding sealing lip 4 is bent, a turn 5 is arranged with the outer wall of sealing lip 4, the inwall of sealing lip 4 is in cone
Shape, and circle wear ring 6 made of polytetrafluoroethylene (PTFE) are provided with the inwall of sealing lip 4, the section of wear ring 6 is trapezoidal
Shape, the bottom surface of wear ring 6 are bonded on the inwall of sealing lip 4 after how sodium is handled, the thickness of wear ring 6 for 0.1mm extremely
Between 0.5mm.
Polytetrafluoroethylene (PTFE) has antiacid alkali resistant, resists the characteristics of various organic solvents, is practically insoluble in all solvents.Together
When, polytetrafluoroethylene (PTFE) has resistant to elevated temperatures feature, and its coefficient of friction is extremely low, so can make lubrication, therefore is bonded in close
There is good rub resistance and heat-resisting quantity on the envelope inwall of lip 4.But because ptfe surface portion has cementability, therefore
Professional, which does not take into account that, is used for this material in seal valve stem, and is learnt in technical field of chemistry, by how receiving
Processing after, ptfe surface can and rubber, metal, and other materials bond.Therefore this technology is resolved.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although the arts such as rubber bodies 1, skeleton 2, location division 3, sealing lip 4, turn 5, wear ring 6 have more been used herein
Language, but it is not precluded from the possibility using other terms.It is used for the purpose of more easily describing and explaining this using these terms
The essence of utility model；Any additional limitation is construed as all to disagree with the utility model spirit.
Claims (4)
1. a kind of seal valve stem, including rubber bodies（1）Be wrapped in rubber bodies（1）Outer skeleton（2）, described rubber bodies
（1）Top there is sealing lip in conjunction（4）, the skeleton（2）Top have and curve inwardly embedding sealing lip（4）It is interior
Location division（3）, it is characterised in that described sealing lip（4）Outer wall on be arranged with a turn（5）, described sealing
Lip（4）The tapered shape of inwall, and sealing lip（4）Inwall on be provided with circle wear ring made of polytetrafluoroethylene (PTFE)（6）,
Described wear ring（6）The trapezoidal shape in section, wear ring（6）Bottom surface be bonded in sealing lip after how sodium is handled（4）'s
On inwall.
A kind of 2. seal valve stem according to claim 1, it is characterised in that described wear ring（6）Thickness be
0.1mm is between 0.5mm.
A kind of 3. seal valve stem according to claim 1, it is characterised in that described rubber bodies（1）Material be fluorine
Rubber.
A kind of 4. seal valve stem according to claim 1, it is characterised in that described skeleton（2）Using cold-rolled steel sheet
It is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720521631.7U CN206816317U (en) | 2017-05-11 | 2017-05-11 | A kind of seal valve stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720521631.7U CN206816317U (en) | 2017-05-11 | 2017-05-11 | A kind of seal valve stem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206816317U true CN206816317U (en) | 2017-12-29 |
Family
ID=60755611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720521631.7U Expired - Fee Related CN206816317U (en) | 2017-05-11 | 2017-05-11 | A kind of seal valve stem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206816317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330745A (en) * | 2019-07-10 | 2019-10-15 | 陕西奉航橡胶密封件有限责任公司 | A kind of preparation method of the adhered PTFE oil sealing of automobile |
-
2017
- 2017-05-11 CN CN201720521631.7U patent/CN206816317U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330745A (en) * | 2019-07-10 | 2019-10-15 | 陕西奉航橡胶密封件有限责任公司 | A kind of preparation method of the adhered PTFE oil sealing of automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 Termination date: 20200511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |