CN201851188U - Valve guide rod oil seal - Google Patents
Valve guide rod oil seal Download PDFInfo
- Publication number
- CN201851188U CN201851188U CN2010206270105U CN201020627010U CN201851188U CN 201851188 U CN201851188 U CN 201851188U CN 2010206270105 U CN2010206270105 U CN 2010206270105U CN 201020627010 U CN201020627010 U CN 201020627010U CN 201851188 U CN201851188 U CN 201851188U
- Authority
- CN
- China
- Prior art keywords
- lip
- guide rod
- valve guide
- oil seal
- metal 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 relates to a sealing element, in particular to a valve guide rod oil seal which comprises a framework, a sealing member and a spring, and is characterized in that a lip has a trapeziform structure so as to enlarge the contact surface of the lip and strengthen the radial force; the spring is replaced with a metal ring so as to reduce the movement of the lip along with the valve guide rod; one side of the metal ring is provided with an opening to enable the metal ring to be opened or closed when the valve guide rod moves up and down, thus reducing the attrition of the lip. For the valve guide rod oil seal, through the improved design of the lip and the spring of the original valve guide rod oil seal, the contact surface of the lip is enlarged and the radial force is strengthened, the movement of the lip along with the valve guide rod is reduced, and the attrition of the lip of the oil seal is reduced, thus effectively avoiding the leakage and increasing the sealing property of the oil seal.
Description
Technical field
The utility model relates to a kind of Sealing, especially a kind of valve guide rod oil sealing.
Background technique
Present valve guide rod oil seal structure, its lip are wedge angle sealing, like this in the assembly process of high power engine, and the valve guide rod oil sealing of existing structure, its lip is scratched easily, thereby causes leakage; In addition, because the stroke of valve guide rod is bigger, then the lip of wedge angle sealing can not provide enough radial forces, also causes sealing effect undesirable.
The model utility content
A kind of valve guide rod oil sealing of the present utility model, it improves design by lip and the spring to original valve guide rod oil sealing, has increased the area of contact of lip, has increased radial force; Reduced lip with the moving of valve guide rod, reduced the wearing and tearing of oil seal lip, prevented the generation of leaking effectively, thereby increased the sealability of oil sealing.
The technological scheme that the utility model adopted is:
A kind of valve guide rod oil sealing comprises skeleton, seal and spring, it is characterized in that: lip is a trapezium structure, makes the area of contact of lip increase, and makes radial force increase.
Described valve guide rod oil sealing, its spring replaces with metal ring, makes lip reduce with the mobile of valve guide rod.
Described valve guide rod oil sealing, a side of its metal ring is provided with opening, makes when valve guide rod moves up and down, and metal ring can open and close, thereby makes the wearing and tearing of lip reduce.
Like this in when work, a kind of valve guide rod oil sealing of the present utility model, its lip is a trapezium structure, makes the area of contact of lip increase, and makes radial force increase; Its spring replaces with metal ring, makes lip reduce with the mobile of valve guide rod; One side of its metal ring is provided with opening, makes when valve guide rod moves up and down, and metal ring can open and close, thereby makes the wearing and tearing of lip reduce.
A kind of valve guide rod oil sealing of the present utility model, it improves design by lip and the spring to original valve guide rod oil sealing, has increased the area of contact of lip, has increased radial force; Reduced lip with the moving of valve guide rod, reduced the wearing and tearing of oil seal lip, prevented the generation of leaking effectively, thereby increased the sealability of oil sealing.
Description of drawings
Fig. 1 is original valve guide rod oil seal structure schematic representation;
Fig. 2 is a kind of valve guide rod oil seal structure schematic representation of the present utility model.
Wherein, 1 is skeleton, and 2 is seal, and 3 is spring, and 4 is lip, and 5 is metal ring.
Embodiment
As shown in Figure 1, wherein Fig. 1 is original valve guide rod oil seal structure schematic representation, comprises skeleton 1, seal 2, spring 3, lip 4; Its lip 4 for wedge angle sealing (, in the assembly process of high power engine, its lip 4 is scratched easily, thereby causes leakage like this; In addition, because the stroke of valve guide rod is bigger, then the lip 4 of wedge angle sealing can not provide enough radial forces, also causes sealing effect undesirable.A kind of valve guide rod oil sealing of the present utility model comprises skeleton 1, seal 2 and spring 3, it is characterized in that: lip 4 is trapezium structure, makes the area of contact of lip 4 increase, and makes radial force increase.
As shown in Figure 2, with embodiment 1, different is that its spring 3 replaces with metal ring 5, makes lip 4 reduce with the mobile of valve guide rod; And a side of its metal ring 5 is provided with opening, makes when valve guide rod moves up and down, and metal ring 5 can open and close, thereby makes the wearing and tearing of lip 4 reduce.
Like this in when work, a kind of valve guide rod oil sealing of the present utility model, its lip 4 be a trapezium structure, makes the area of contact of lip 4 increase, and makes the radial force increase; Its spring 3 replaces with metal ring 5, makes lip 4 reduce with the mobile of valve guide rod; One side of its metal ring 5 is provided with opening, makes when valve guide rod moves up and down, and metal ring 5 can open and close, thereby makes the wearing and tearing of lip 4 reduce.
A kind of valve guide rod oil sealing of the present utility model, it improves design by lip and the spring to original valve guide rod oil sealing, has increased the area of contact of lip, has increased radial force; Reduced lip with the moving of valve guide rod, reduced the wearing and tearing of oil seal lip, prevented the generation of leaking effectively, thereby increased the sealability of oil sealing.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here can't give exhaustive to all mode of executions.Everyly belong to the row that conspicuous variation that the technical solution of the utility model extends out or change still are in protection domain of the present utility model.
Claims (3)
1. a valve guide rod oil sealing comprises skeleton (1), seal (2) and spring (3), and it is characterized in that: lip (4) is a trapezium structure, makes the area of contact of lip (4) increase, and makes radial force increase.
2. valve guide rod oil sealing according to claim 1 is characterized in that: spring (3) replaces with metal ring (5), makes lip (4) reduce with the mobile of valve guide rod.
3. valve guide rod oil sealing according to claim 2 is characterized in that: a side of metal ring (5) is provided with opening, makes when valve guide rod moves up and down, and metal ring (5) can open and close, thereby makes the wearing and tearing of lip (4) reduce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206270105U CN201851188U (en) | 2010-11-26 | 2010-11-26 | Valve guide rod oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206270105U CN201851188U (en) | 2010-11-26 | 2010-11-26 | Valve guide rod oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851188U true CN201851188U (en) | 2011-06-01 |
Family
ID=44093586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206270105U Expired - Fee Related CN201851188U (en) | 2010-11-26 | 2010-11-26 | Valve guide rod oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851188U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358599A (en) * | 2014-11-18 | 2015-02-18 | 烟台润蚨祥油封有限公司 | Low-friction air valve oil seal |
| US11608760B2 (en) | 2020-05-04 | 2023-03-21 | Caterpillar Inc. | Stem seal for valve assembly of machine engine |
-
2010
- 2010-11-26 CN CN2010206270105U patent/CN201851188U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358599A (en) * | 2014-11-18 | 2015-02-18 | 烟台润蚨祥油封有限公司 | Low-friction air valve oil seal |
| US11608760B2 (en) | 2020-05-04 | 2023-03-21 | Caterpillar Inc. | Stem seal for valve assembly of machine engine |
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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: 20110601 Termination date: 20131126 |