CN201794679U - Cylinder cover hood provided with internal embedded type sealing structure - Google Patents
Cylinder cover hood provided with internal embedded type sealing structure Download PDFInfo
- Publication number
- CN201794679U CN201794679U CN2010205190052U CN201020519005U CN201794679U CN 201794679 U CN201794679 U CN 201794679U CN 2010205190052 U CN2010205190052 U CN 2010205190052U CN 201020519005 U CN201020519005 U CN 201020519005U CN 201794679 U CN201794679 U CN 201794679U
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- sealing
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- sealing ring
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- Expired - Fee Related
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Abstract
The utility model relates to a cylinder cover hood provided with an internal embedded type sealing structure. A sealing surface of the cylinder cover hood is provided with a sealing slot which is a sealing groove; the shape of the cross section of the sealing groove is an isosceles trapezoid; a rubber sealing ring is embedded in the sealing groove; the cross section of the rubber sealing ring is a wedged-shaped cross section; and a sealing surface of the rubber sealing ring is provided with more than two convex rings. The isosceles trapezoid cross section of the sealing groove creates an inward displacement trend condition for the rubber sealing ring, and is favorable for the rubber sealing ring to extrude inwards the groove when the rubber sealing ring is pressed so as to achieve an interference state and enhance the sealing effect. Simultaneously, because the cylinder cover hood 1 generally has a rigid structure, a protective shell is provided for the soft rubber sealing ring; and the sealing groove of the isosceles trapezoid cross section can keep the shape of the rubber sealing ring unchanged, so the service life of the rubber sealing ring is prolonged. The convex ring on the rubber sealing ring is closely clung to the sealing surface of the cylinder cover to form a plurality of sealing structures to stop engine oil leakage.
Description
Technical field
The utility model belongs to Diesel Engine Technique Field, is specifically related to diesel engine cylinder head cover.
Background technique
Usually, in order to prevent that machine oil from seepage between valve mechanism cover and the cylinder head, all is equipped with Sealing between diesel engine cylinder head cover and the cylinder head.At present, Sealing is generally rubber seal, and the groove shape is adopted in the seal ring cross section mostly, and the valve mechanism cover sealed section should be wedge-like mutually.In use cylinder head place temperature is higher owing to diesel engine, and Sealing is met heat back easy deformation or cracking for a long time, causes sealing function to lose efficacy, thereby causes the generation of engine oil leakage phenomenon.
The model utility content
In order to improve the airtight quality of valve mechanism cover, avoid the generation of engine oil leakage phenomenon, can prolong the working life of seal ring simultaneously, the utility model provides a kind of valve mechanism cover of concrete embedded sealing configuration.
Technical solution of the present utility model is as follows:
The valve mechanism cover of concrete embedded sealing configuration comprises that sealing surface is provided with the valve mechanism cover of seal groove, is provided with seal ring in the seal groove; The seal groove of described valve mechanism cover sealing surface is a sealed groove, is embedded with rubber seal in the described sealed groove, and the cross section of described rubber seal is the wedge-like cross section.
Described sealed groove shape of cross section is an isosceles trapezoid.
The sealing surface of described rubber seal is provided with the above protruding ring of twice.
Be laid with the twice protruding ring on the sealing surface of described rubber seal.
The sealed groove of isosceles trapezoid on the utility model valve mechanism cover, the assembling of being convenient to rubber seal on the one hand is embedded, on the other hand, when cover sub-assembly of cylinder head is assembled on the diesel engine, help in groove, pushing behind the rubber seal pressurized, make between rubber seal and the valve mechanism cover groove to be in the interference assembling condition.Like this, groove can not only make the rubber seal shape that remains unchanged of being heated, and increases the service life, and the state of interference has simultaneously also been strengthened sealing effect.
Be provided with the protruding ring that twice (or more than twice) are used to prevent engine oil leakage in the rubber seal bottom, because the per pass protruding ring all has the identical seal action that prevents engine oil leakage, She Ji advantage is like this: when the first road protruding ring seal action lost efficacy, (or the 3rd road, second road ...) protruding ring still can bring into play its seal action, thereby improve the sealing effect of rubber seal.Therefore, adopt the sealing configuration of this kind twice (or more than twice) protruding ring, can avoid adopting traditional single sealed section because the defective engine oil leakage that causes in cross section.
Above in a word technological scheme, the generation that can fundamentally solve valve mechanism cover seal ring engine oil leakage phenomenon.
Description of drawings
Fig. 1 is a structural representation plan view of the present utility model.
Fig. 2 is a valve mechanism cover sealed groove cross section enlarged view.
Fig. 3 is a rubber seal ring cross-section enlarged view.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.
Embodiment:
As shown in Figure 1, the valve mechanism cover of concrete embedded sealing configuration comprises that sealing surface is provided with the valve mechanism cover 1 of seal groove, and the seal groove of valve mechanism cover 1 sealing surface is a sealed groove 3, and the shape of cross section of sealed groove 3 is an isosceles trapezoid, sees Fig. 2; Be embedded with rubber seal 2 in the sealed groove 3, the cross section of rubber seal 2 is wedge-like cross section 4.Be laid with twice protruding ring 5 on the sealing surface of bottom, rubber seal 2 wedge-like cross sections.During work, protruding ring 5 fits tightly with the cylinder head sealing surface, forms the sealing configuration that multiple tracks stops engine oil leakage.
The sealed groove 3 of isosceles trapezoid is convenient to have the rubber seal 2 assembling embeddings in wedge-like cross section 4, the isosceles trapezoid cross section of sealed groove 3 is that rubber seal 2 has been created the condition of displacement trend inwards, help in groove, pushing the interference state that reaches behind rubber seal 2 pressurizeds, strengthen sealing effect.Because valve mechanism cover 1 is generally rigid construction, for softer rubber seal 2 provides containment vessel, the sealed groove 3 in isosceles trapezoid cross section can keep rubber seal 2 shape invariances, has prolonged the working life of rubber seal 2 simultaneously.
Claims (4)
1. the valve mechanism cover of concrete embedded sealing configuration, comprise that sealing surface is provided with the valve mechanism cover of seal groove, be provided with seal ring in the seal groove, it is characterized in that: the seal groove of described valve mechanism cover sealing surface is a sealed groove, be embedded with rubber seal in the described sealed groove, the cross section of described rubber seal is the wedge-like cross section.
2. the valve mechanism cover of concrete embedded sealing configuration according to claim 1, it is characterized in that: described sealed groove shape of cross section is an isosceles trapezoid.
3. the valve mechanism cover of concrete embedded sealing configuration according to claim 1 is characterized in that: the sealing surface of described rubber seal is provided with the above protruding ring of twice.
4. the valve mechanism cover of concrete embedded sealing configuration according to claim 3 is characterized in that: be laid with the twice protruding ring on the sealing surface of described rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205190052U CN201794679U (en) | 2010-09-02 | 2010-09-02 | Cylinder cover hood provided with internal embedded type sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205190052U CN201794679U (en) | 2010-09-02 | 2010-09-02 | Cylinder cover hood provided with internal embedded type sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201794679U true CN201794679U (en) | 2011-04-13 |
Family
ID=43849592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205190052U Expired - Fee Related CN201794679U (en) | 2010-09-02 | 2010-09-02 | Cylinder cover hood provided with internal embedded type sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201794679U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405528A (en) * | 2014-12-12 | 2015-03-11 | 张家港市三林法兰锻造有限公司 | Oil gas internal combustion engine shield ring |
| CN104832316A (en) * | 2015-03-31 | 2015-08-12 | 安徽江淮汽车股份有限公司 | Engine sealing gasket and sealing structure thereof |
-
2010
- 2010-09-02 CN CN2010205190052U patent/CN201794679U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405528A (en) * | 2014-12-12 | 2015-03-11 | 张家港市三林法兰锻造有限公司 | Oil gas internal combustion engine shield ring |
| CN104405528B (en) * | 2014-12-12 | 2017-04-05 | 张家港市三林法兰锻造有限公司 | Oil gas internal combustion engine shroud ring |
| CN104832316A (en) * | 2015-03-31 | 2015-08-12 | 安徽江淮汽车股份有限公司 | Engine sealing gasket and sealing structure thereof |
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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: 20110413 Termination date: 20110902 |