CN201747932U - Two-way back flow PTFE lip oil seal - Google Patents
Two-way back flow PTFE lip oil seal Download PDFInfo
- Publication number
- CN201747932U CN201747932U CN2010202973084U CN201020297308U CN201747932U CN 201747932 U CN201747932 U CN 201747932U CN 2010202973084 U CN2010202973084 U CN 2010202973084U CN 201020297308 U CN201020297308 U CN 201020297308U CN 201747932 U CN201747932 U CN 201747932U
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- lip
- ptfe
- bidirectional
- reflux
- back flow
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Abstract
The utility model relates to a sealing part, in particular to a two-way back flow PTFE (polytetrafluoroethylene) lip oil seal, which comprises a skeleton, a sealing body, a spring and a PTFE sheet stuck on the lip, and is characterized in that a two-way back flow line is arranged on one side of the lip of the PTFE sheet and adopts a gradation structure that the height to the lip direction decreases, and the two-way back flow line adopts a single strip or multi-strip saw-toothed or wavy mould pressing forming structure. The two-way back flow PTFE lip oil seal provided by the utility model overcomes the common defects of the original PTFE lip oil seal of no back flow effect and high probability oil leakage, the sealing fails; and the utility model has the advantages that the two-way back flow PTFE lip oil seal can keep various good properties of the PTFE lip, have two-way back flow effect, also can keep good sealing effect, and be suitable for two-way running operating mode, thereby enlarging the application field of the PTFE lip oil seal and meeting the requirement of actual situation.
Description
Technical field
The utility model relates to a kind of Sealing, especially a kind of bidirectional-reflux PTFE lip oil sealing.
Background technique
The oil sealing that lip is pasted the PTFE sheet has the good characteristic of wear-resisting, high temperature resistant and anti-various media with respect to common gum lip oil sealing, be applicable to automobile engine crankshaft or similar operating mode, but pasting the oil sealing of PTFE sheet, present General Purpose Rubber lip do not have the backflow line because of its lip, so there is not backflow effeet, like this when running up or have at Seal cage under the working state of pressure effect, be easy to generate leakage of oil, make seal failure.Need a kind of various good characteristics of the PTFE of maintenance lip for this reason, and have the bidirectional-reflux effect, thereby the PTFE lip oil sealing of maintenance excellent sealing effect satisfies the needs of actual conditions with this.
The model utility content
A kind of bidirectional-reflux PTFE lip oil sealing of the present utility model, it has solved, and original PTFE lip oil sealing is ubiquitous not to have a backflow effeet, be easy to generate leakage of oil, thereby the shortcoming that makes seal failure, it has the various good characteristics that keep the PTFE lip, and has the bidirectional-reflux effect, thereby the advantage that keeps excellent sealing effect, the working state of its suitable bidirectional movement has enlarged the application of PTFE lip oil sealing, can satisfy the needs of actual conditions.
The technological scheme that the utility model adopted is:
A kind of bidirectional-reflux PTFE lip oil sealing comprises skeleton, seal, spring and the PTFE sheet of pasting at lip, it is characterized in that: lip one side of PTFE sheet is provided with the bidirectional-reflux line.
Described a kind of bidirectional-reflux PTFE lip oil sealing, the bidirectional-reflux line of the lip one side setting of its PTFE sheet is made as grading structure.
Described a kind of bidirectional-reflux PTFE lip oil sealing, the bidirectional-reflux line of the lip one side setting of its PTFE sheet is made as the highly gradient structure.
Described a kind of bidirectional-reflux PTFE lip oil sealing, the grading structure of the bidirectional-reflux line of the lip one side setting of its PTFE sheet is made as to the lip direction.
Described a kind of bidirectional-reflux PTFE lip oil sealing, the bidirectional-reflux line of the lip one side setting of its PTFE sheet is made as the grading structure that highly successively decreases.
Described a kind of bidirectional-reflux PTFE lip oil sealing, the bidirectional-reflux line of the lip one side setting of its PTFE sheet is wall scroll formula or many formulas.
Described a kind of bidirectional-reflux PTFE lip oil sealing, the bidirectional-reflux line of the lip one side setting of its PTFE sheet are flexuose or wavy etc.
Described a kind of bidirectional-reflux PTFE lip oil sealing, the bidirectional-reflux line of the lip one side setting of its PTFE sheet are that mold pressing forms structure.
Like this when work, a kind of bidirectional-reflux PTFE lip oil sealing of the present utility model, under the working state condition of harshness, even oil seal lip has the oil leakage tendency, because the backflow effeet of bidirectional-reflux line, make the oil that is about to reveal get back in the Seal cage, thereby keep good sealing effect.
A kind of bidirectional-reflux PTFE lip oil sealing of the present utility model, it has solved, and original PTFE lip oil sealing is ubiquitous not to have a backflow effeet, be easy to generate leakage of oil, thereby the shortcoming that makes seal failure, it has the various good characteristics that keep the PTFE lip, and has the bidirectional-reflux effect, thereby the advantage that keeps excellent sealing effect, the working state of its suitable bidirectional movement has enlarged the application of PTFE lip oil sealing, can satisfy the needs of actual conditions.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is original PTFE lip oil seal structure schematic representation;
Fig. 2 is a kind of bidirectional-reflux PTFE of the utility model lip oil sealing embodiment 1 structural representation;
A kind of bidirectional-reflux PTFE of Fig. 3 the utility model lip oil sealing embodiment 1 structural representation.
Among the figure, 1 is skeleton, and 2 is seal, and 3 is spring, and 4 is the PTFE sheet, and 5 is the bidirectional-reflux line, and 6 is lip.
Embodiment
As Fig. 1, shown in Figure 2, wherein Fig. 1 is original PTFE lip oil seal structure schematic representation, comprises skeleton 1, seal 2, spring 3 and pastes at the PTFE of lip 6 sheet 4.
Fig. 2 is a kind of bidirectional-reflux PTFE lip oil sealing of the present utility model, comprise skeleton 1, seal 2, spring 3 and paste at the PTFE of lip 6 sheet 4, it is characterized in that: lip 6 one sides of PTFE sheet 4 are provided with three formula flexuose bidirectional-reflux lines 5 of compression molding, the grading structure of this bidirectional-reflux line 5 for successively decreasing to lip 6 direction height.
Like this when work, a kind of bidirectional-reflux PTFE lip oil sealing of the present utility model, under the working state condition of harshness, even oil seal lip 6 has the oil leakage tendency, because the backflow effeet of bidirectional-reflux line 5, make the oil that is about to reveal get back in the Seal cage, thereby keep good sealing effect.
As shown in Figure 3.With embodiment 1, different is that lip 6 one sides of PTFE sheet 4 are provided with the wavy bidirectional-reflux line 5 of wall scroll formula of compression molding, the grading structure of this bidirectional-reflux line 5 for successively decreasing to lip 6 direction height.
A kind of bidirectional-reflux PTFE lip oil sealing of the present utility model, it has solved, and original PTFE lip oil sealing is ubiquitous not to have a backflow effeet, be easy to generate leakage of oil, thereby the shortcoming that makes seal failure, it has the various good characteristics that keep the PTFE lip, and has the bidirectional-reflux effect, thereby the advantage that keeps excellent sealing effect, the working state of its suitable bidirectional movement has enlarged the application of PTFE lip oil sealing, can satisfy the needs of actual conditions.
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 (8)
1. a bidirectional-reflux PTFE lip oil sealing comprises skeleton, seal, spring and the PTFE sheet of pasting at lip, it is characterized in that: lip one side of PTFE sheet is provided with the bidirectional-reflux line.
2. a kind of bidirectional-reflux PTFE lip oil sealing according to claim 1 is characterized in that: the bidirectional-reflux line of the lip one side setting of PTFE sheet is made as grading structure.
3. a kind of bidirectional-reflux PTFE lip oil sealing according to claim 2 is characterized in that: the bidirectional-reflux line of the lip one side setting of PTFE sheet is made as the highly gradient structure.
4. a kind of bidirectional-reflux PTFE lip oil sealing according to claim 2 is characterized in that: the grading structure of the bidirectional-reflux line of the lip one side setting of PTFE sheet is made as to the lip direction.
5. a kind of bidirectional-reflux PTFE lip oil sealing according to claim 4 is characterized in that: the bidirectional-reflux line of the lip one side setting of PTFE sheet is made as the grading structure that highly successively decreases.
6. according to the described a kind of bidirectional-reflux PTFE lip oil sealing of arbitrary claim in the claim 1 to 5, it is characterized in that: the bidirectional-reflux line of the lip one side setting of PTFE sheet is wall scroll formula or many formulas.
7. according to the described a kind of bidirectional-reflux PTFE lip oil sealing of arbitrary claim in the claim 1 to 5, it is characterized in that: the bidirectional-reflux line of the lip one side setting of PTFE sheet is a flexuose or wavy.
8. a kind of bidirectional-reflux PTFE lip oil sealing according to claim 1 is characterized in that: the bidirectional-reflux line of the lip one side setting of PTFE sheet is that mold pressing forms structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202973084U CN201747932U (en) | 2010-08-19 | 2010-08-19 | Two-way back flow PTFE lip oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202973084U CN201747932U (en) | 2010-08-19 | 2010-08-19 | Two-way back flow PTFE lip oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747932U true CN201747932U (en) | 2011-02-16 |
Family
ID=43582610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202973084U Expired - Fee Related CN201747932U (en) | 2010-08-19 | 2010-08-19 | Two-way back flow PTFE lip oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727244A (en) * | 2014-01-20 | 2014-04-16 | 昆山健博密封件科技有限公司 | Anti-corrosion and wear-resisting sealing piece |
-
2010
- 2010-08-19 CN CN2010202973084U patent/CN201747932U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727244A (en) * | 2014-01-20 | 2014-04-16 | 昆山健博密封件科技有限公司 | Anti-corrosion and wear-resisting sealing piece |
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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: 20110216 Termination date: 20120819 |