CN201184223Y - Disc type valve stem oil seal - Google Patents
Disc type valve stem oil seal Download PDFInfo
- Publication number
- CN201184223Y CN201184223Y CNU2008200765925U CN200820076592U CN201184223Y CN 201184223 Y CN201184223 Y CN 201184223Y CN U2008200765925 U CNU2008200765925 U CN U2008200765925U CN 200820076592 U CN200820076592 U CN 200820076592U CN 201184223 Y CN201184223 Y CN 201184223Y
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- CN
- China
- Prior art keywords
- valve rod
- oil seal
- oil sealing
- disc type
- type valve
- 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 relates to a sealing element, particularly to an oil seal, more particularly to a valve rod oil seal applied to an engine, and a diesel engine. The utility model provides a disc-type valve rod oil seal with the advantages of high assembly strength, good sealing property and long service life. The disc-type valve rod oil seal comprises a sealing body and a framework, wherein, the framework is spliced on the lower part of the sealing body, and the lower end of the framework warps outwards to form a disc-shaped protrusion. The lower end of the framework warps outwards to form a disc-shaped protrusion, and the protrusion can be pressed tightly by a working spring when in assembly, so that the oil seal has the advantages of high assembly strength, good sealing property and long service life.
Description
Technical field
The utility model relates to a kind of Sealing, specifically, relates to a kind of oil sealing, more particularly, relates to the valve valve rod oil sealing of using on a kind of motor, the diesel engine.
Background technique
Motor of the prior art, diesel engine spiracle valve rod oil sealing generally all comprises seal and skeleton, valve valve rod oil sealing of the prior art generally has two kinds of forms, as shown in Figure 1 a kind of, this oil sealing 2 is interior rubbery sealed body formula oil sealing, the skeleton inboard also is provided with rubbery sealed body, the rubbery sealed body and the valve guide bushing 3 that assemble the back skeleton inboard closely cooperate, this oil sealing in the course of the work, the rubbery sealed body of skeleton inboard is directly stressed, long-term and valve guide bushing 3 frictional heatings, be very easy to wear out, come off from valve valve rod 1, oil leakage phenomenon occurs thereby oil sealing occurs.The valve valve rod oil sealing that also has a kind of form in the prior art as shown in Figure 2, this oil tight skeleton inboard is not provided with rubbery sealed body, direct and valve guide bushing 3 cooperations of skeleton, but because skeleton generally all is that metal is made, so the assembling strength ratio of skeleton and valve guide bushing 3 is lower, coordinate force is more weak, the stressed easy play of oil sealing, be very easy to occur oil sealing and take off bar and drop out, thereby the phenomenon of leakage of oil occurs.The working life of above-mentioned two kinds of oil sealings is all shorter, generally is exactly about 50,000 kilometers at automotive field.
Summary of the invention
The purpose of this utility model is to overcome above defective, and a kind of assembling intensity height is provided, good airproof performance, and the disc type valve valve rod oil sealing of growing very much working life.
The technological scheme of disc type valve valve rod oil sealing of the present utility model is such: it comprises seal, skeleton, and skeleton is plugged on seal in the bottom, sticks up outside the lower end of skeleton to form discoid projection.
The sealing lip that the seal setting can cooperate with assembling place.
The outer of the corresponding sealing lip of seal is provided with the banding device, and the banding device is a spring ring.
The lower end surface of seal is provided with the sealing lip that can cooperate with assembling place.
Stick up formation plate-like projection outside the skeleton lower end of disc type valve valve rod oil sealing of the present utility model, this projection can be compressed by working spring during assembling, thus assembling intensity height, good airproof performance, working life is long.
Description of drawings
Fig. 1 is the structural representation of prior art 1;
Fig. 2 is the structural representation of prior art 2;
Fig. 3 is the structural representation of disc type valve valve rod oil sealing of the present utility model;
Fig. 4 is that dish of the present utility model is the assembly structure schematic representation of valve valve rod oil sealing.
Embodiment
As shown in Figure 3, it comprises seal 8, skeleton 6 disc type valve valve rod oil sealing of the present utility model 2, skeleton 6 is plugged on the bottom of seal 8, stick up outside the lower end of skeleton 6 and form discoid projection 10, the sealing lip 9 that seal 8 setting can cooperate with assembling place, the outer of seal 8 corresponding sealing lips 9 is provided with banding device 7, and the banding device is a spring ring 7, and the lower end surface of seal 8 is provided with the sealing lip 11 that can cooperate with assembling place.As shown in Figure 4, after assembling, sealing lip 9 gentle family of power and influence's bars 1 of seal 8 inboards on disc type valve valve rod oil sealing of the present utility model top closely cooperate, the sealing lip 11 and the valve guide bushing 3 of the lower end surface of seal 8 closely cooperate, the disc projection 10 of sticking up formation outside skeleton 6 lower ends contacts with cylinder head 5, and the working spring 4 of launched machine or diesel engine compresses, the oil sealing that assembles up like this, in use, play can not take place in oil sealing, solid and reliable, and the inboard of skeleton 6 is not provided with seal, the lower end surface that will be arranged on the seal of skeleton 6 upper ends dexterously is provided with and the close-fitting sealing lip 11 of valve guide bushing, has strengthened the sealing of oil sealing so effectively, has fully solved the leakage of oil problem of oil sealing.
Disc type valve valve rod oil sealing of the present utility model is solid and reliable after oil sealing is installed, the sealing reliability of valve rod oil sealing is provided, prevent to occur oil sealing and taken off the bar oil leakage phenomenon, make the life-span of valve rod oil sealing improve 5-6 doubly, thereby for society has saved the energy, prolonged the life-span of motor or diesel engine, can extensive use in motor, diesel engine field.
Claims (5)
1. disc type valve valve rod oil sealing, it comprises seal, skeleton, skeleton is plugged on seal in the bottom, it is characterized in that: stick up outside the lower end of skeleton and form discoid projection.
2. disc type valve valve rod oil sealing according to claim 1 is characterized in that: the sealing lip that the seal setting can cooperate with assembling place.
3. disc type valve valve rod oil sealing according to claim 2 is characterized in that: the outer of the corresponding sealing lip of seal is provided with the banding device.
4. disc type valve valve rod oil sealing according to claim 3 is characterized in that the banding device is a spring ring.
5. disc type valve valve rod oil sealing according to claim 1 is characterized in that: the lower end surface of seal is provided with the sealing lip that can cooperate with assembling place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200765925U CN201184223Y (en) | 2008-03-18 | 2008-03-18 | Disc type valve stem oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200765925U CN201184223Y (en) | 2008-03-18 | 2008-03-18 | Disc type valve stem oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184223Y true CN201184223Y (en) | 2009-01-21 |
Family
ID=40271963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200765925U Expired - Fee Related CN201184223Y (en) | 2008-03-18 | 2008-03-18 | Disc type valve stem oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201184223Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123257A (en) * | 2012-09-06 | 2013-05-29 | 浙江吉利罗佑发动机有限公司 | Air charging and exhausting valve oil seal inner flange gauge and detecting method thereof |
| CN105020398A (en) * | 2015-04-18 | 2015-11-04 | 昆山肯达机械有限公司 | High-pressure sealing oil control device |
-
2008
- 2008-03-18 CN CNU2008200765925U patent/CN201184223Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123257A (en) * | 2012-09-06 | 2013-05-29 | 浙江吉利罗佑发动机有限公司 | Air charging and exhausting valve oil seal inner flange gauge and detecting method thereof |
| CN103123257B (en) * | 2012-09-06 | 2015-08-05 | 浙江吉利罗佑发动机有限公司 | Intake and exhaust valve oil seal inward flange cubing and detection method thereof |
| CN105020398A (en) * | 2015-04-18 | 2015-11-04 | 昆山肯达机械有限公司 | High-pressure sealing oil control device |
| CN105020398B (en) * | 2015-04-18 | 2017-06-16 | 昆山肯达机械有限公司 | A kind of high pressure sealing oil control device |
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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: 20090121 Termination date: 20110318 |