CN201851661U - Combined-type polytetrafluoroethylene (PTFE) oil seal - Google Patents
Combined-type polytetrafluoroethylene (PTFE) oil seal Download PDFInfo
- Publication number
- CN201851661U CN201851661U CN2010206221931U CN201020622193U CN201851661U CN 201851661 U CN201851661 U CN 201851661U CN 2010206221931 U CN2010206221931 U CN 2010206221931U CN 201020622193 U CN201020622193 U CN 201020622193U CN 201851661 U CN201851661 U CN 201851661U
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- seal ring
- boss
- upside
- downside
- depression
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Abstract
The utility model relates to a sealing element, in particular to a combined-type polytetrafluoroethylene (PTFE) oil seal. In the combined-type PTFE oil seal, the quantity of combining components is reduced, the axial matching mode of the components in the original structure is changed into the radial matching mode, the nested structure has enough strength by means of the interference assembly, so that the assembly pressure is ensured to transfer among the components, and the assembly of the components is ensured to be completed in an integral form, therefore, the reliable seal is realized, the seal leakage caused by too many combining components and complicated technology is avoided, and the sealing effect of the oil seal is improved; Therefore, the reliable seal is realized, and the leakage of a sealing medium at the matching surface is prevented; in addition, the combining components adopt the integral structure formed by high polymer materials through injection molding, therefore, the sealing reliability is also improved.
Description
Technical field
The utility model relates to a kind of Sealing, especially a kind of combined type PTFE oil sealing.
Background technique
In the Sealing commonly used at present, the PTFE oil sealing is high temperature resistant because of its excellence, characteristics such as media-resistant have obtained using widely, the mach mode combination forming of the general employing of conventional combined type PTFE oil sealing, its in periphery with support ring inboard outside elastomeric, stack the elastic packing packing ring successively, PTFE sealing lip sheet and inside support ring, then by mach mode, with outer support ring top flange, make it be pressed in the inside support ring top, and make between each assembly in the certain impacting force of axial formation, to guarantee reliable fit between each assembly, thereby the seepage of avoiding, but the combination PTFE Oil sealing assembly of the type is more, the group technology complexity, and combinative stability is relatively poor, cause easily producing seepage between each assembly, thereby cause seal failure, need a kind of can avoiding to cause seepage for this reason because of combination, and can improve the combined type PTFE oil sealing of sealing effect, satisfy the needs of actual conditions with this.
The model utility content
A kind of combined type PTFE oil sealing of the present utility model, by reducing the number of combine component, and the axial fit system of assembly in the original structure is improved to the radial fit mode, again by relying on the interference assembling, its mutually nested structure makes has enough intensity can guarantee that assembling pressure obtains transmitting between each assembly, and guaranteed that each inter-module finishes assembling with integral form, thereby realization reliable sealing, avoided because the seal leakage that combine component is too much and complex process caused, improved the sealing effect of oil sealing, thereby the realization reliable sealing is avoided sealing medium to form at fitting surface and is revealed; In addition, the injection molding integral structure of the macromolecular material that its combine component adopted has also improved sealing reliability.
The technological scheme that the utility model adopted is:
A kind of combined type PTFE oil sealing is characterized in that: comprise inner seal ring and exterior seal ring, exterior seal ring is for adopting rubber or macromolecular material and by compression molding or injection molding structure; Inner seal ring is by adopting formed support of macromolecular material and PTFE sealing lip to constitute, and the support of inner seal ring and PTFE sealing lip sheet be integral structure by injection moulding, improved sealing reliability; The fit on face of inner seal ring is on it, be respectively equipped with upside boss and downside boss on the following both sides, on the interior fitting surface of exterior seal ring on it, be respectively equipped with upside depression and downside depression on the following both sides, the upside boss is corresponding with the downside depression, the downside boss is corresponding with the upside depression, the fit on face of inner seal ring adopts mutually nested structure mutually to make up with downside depression and downside boss with the upside depression by the upside boss with the interior fitting surface of exterior seal ring, between upside boss and downside boss, form and downside depression and the anchor ring structure of upside depression on same ring surface, then mutually nested cooperating structure has adopted the radial fit mode, avoided the mutual displacement in the axial direction of exterior seal ring and inner seal ring, thereby form the fabricated structure of one, and mutually nested boss intensity makes that assembling pressure obtains transmitting between inner seal ring and exterior seal ring, thereby assurance inner seal ring and exterior seal ring are finished assembling with the combining form of integral body.
Described combined type PTFE oil sealing, upside boss and downside boss form even distribution at circumference, and alternately occur with downside depression and upside depression respectively, thus formative gear shape structure.
Described combined type PTFE oil sealing, inner seal ring and exterior seal ring adopt interference fit, make anchor ring and corresponding with it upside boss and downside boss form interference fit, thereby realize reliable sealing, avoid sealing medium to form at fitting surface and reveal.
Described combined type PTFE oil sealing, the quantity of the PTFE sealing lip on the inner seal ring is two.
A kind of combined type PTFE oil sealing of the present utility model, by reducing the number of combine component, and the axial fit system of assembly in the original structure is improved to the radial fit mode, again by relying on the interference assembling, its mutually nested structure makes has enough intensity can guarantee that assembling pressure obtains transmitting between each assembly, and guaranteed that each inter-module finishes assembling with integral form, thereby realization reliable sealing, avoided because the seal leakage that combine component is too much and complex process caused, improved the sealing effect of oil sealing, thereby the realization reliable sealing is avoided sealing medium to form at fitting surface and is revealed; In addition, the injection molding integral structure of the macromolecular material that its combine component adopted has also improved sealing reliability.
Description of drawings
Fig. 1 is original combined type PTFE oil seal structure structural drawing;
Fig. 2 is a kind of combined type PTFE oil seal structure schematic representation plan view of the present utility model;
Fig. 3 is a kind of combined type PTFE oil seal structure schematic representation plan view of the present utility model;
Fig. 4 is a kind of combined type PTFE oil sealing inner seal ring structural representation of the present utility model;
Fig. 5 is a kind of combined type PTFE oil sealing inner seal ring detailed schematic of the present utility model;
Fig. 6 is a kind of combined type PTFE oil sealing inner seal ring schematic appearance of the present utility model;
Fig. 7 is a kind of combined type PTFE oil sealing inner seal ring partial enlarged drawing of the present utility model.
Wherein, 10 is original combined type PTFE oil sealing, and 11 is elastomer, 12 is outer support ring, and 13 is inside support ring, and 14 and 15 is PTFE sealing lip sheet, 16 is the elastic packing packing ring, and 20 is a kind of combined type PTFE oil sealing of the present utility model, and 21 is exterior seal ring, 22 is inner seal ring, and 23 is support, and 24 and 25 is the PTFE sealing lip, 26 is the upside boss, and 27 is the downside boss, and 28 is anchor ring, 29 is the upside depression, and 30 is the downside depression.
Embodiment
Embodiment
Extremely shown in Figure 7 as Fig. 1, wherein Figure 1 shows that original combined type PTFE oil sealing 10, the mach mode combination forming of its general employing, it is in outer support ring 12 inboards of periphery with elastomer 11, stack elastic packing packing ring 16 successively, PTFE sealing lip sheet 14 and 15, and inside support ring 13, then by mach mode, with outer support ring 12 top flange, make it be pressed in inside support ring 13 tops, and make between each assembly axially forming certain impacting force, to guarantee reliable fit between each assembly, thereby the seepage of avoiding, but the combination PTFE Oil sealing assembly of the type is more, the group technology complexity, and combinative stability is relatively poor, cause easily producing seepage between each assembly, thereby cause seal failure.Fig. 2 comprises inner seal ring 22 and exterior seal ring 21 to Figure 7 shows that a kind of combined type PTFE oil sealing 20 of the present utility model, and exterior seal ring 21 is for adopting rubber or macromolecular material and by compression molding or injection molding structure; Inner seal ring 22 is by adopting the formed support 23 of macromolecular material and two PTFE sealing lips, be that PTFE sealing lip 24 and 25 constitutes, and the support 23 and the PTFE sealing lip sheet 24 and 25 of inner seal ring 22 are integral structure by injection moulding, have improved sealing reliability; The fit on face of inner seal ring 22 is on it, be respectively equipped with upside boss 26 and downside boss 27 on the following both sides, on the interior fitting surface of exterior seal ring 21 on it, be respectively equipped with upside depression 29 and downside depression 30 on the following both sides, upside boss 26 is corresponding with downside depression 30, downside boss 27 is corresponding with upside depression 29, upside boss 26 and downside boss 27 form even distribution at circumference, and alternately occur with downside depression 30 and upside depression 29 respectively, thereby formative gear shape structure, the fit on face of inner seal ring 22 adopts mutually nested structure mutually to make up with downside depression 30 and downside boss 27 with upside depression 30 by upside boss 26 with the interior fitting surface of exterior seal ring 21, between upside boss 36 and downside boss 27, form and downside depression 30 and anchor ring 28 structures of upside depression 29 on same ring surface, then mutually nested cooperating structure has adopted the radial fit mode, exterior seal ring 21 and inner seal ring 22 mutual displacement have in the axial direction been avoided, thereby form the fabricated structure of one, and mutually nested boss intensity makes that assembling pressure obtains transmitting between inner seal ring 22 and exterior seal ring 21, thereby assurance inner seal ring 22 and exterior seal ring 21 are finished assembling with the combining form of integral body; Inner seal ring 22 adopts interference fit with exterior seal ring 21, makes anchor ring 8 and corresponding with it upside boss 26 and downside boss 27 form interference fit, thereby realizes reliable sealing, avoids sealing medium to form at fitting surface and reveals.
A kind of combined type PTFE oil sealing of the present utility model, by reducing the number of combine component, and the axial fit system of assembly in the original structure is improved to the radial fit mode, again by relying on the interference assembling, its mutually nested structure makes has enough intensity can guarantee that assembling pressure obtains transmitting between each assembly, and guaranteed that each inter-module finishes assembling with integral form, thereby realization reliable sealing, avoided because the seal leakage that combine component is too much and complex process caused, improved the sealing effect of oil sealing, thereby the realization reliable sealing is avoided sealing medium to form at fitting surface and is revealed; In addition, the injection molding integral structure of the macromolecular material that its combine component adopted has also improved sealing reliability.
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 (4)
1. combined type PTFE oil sealing is characterized in that: comprise inner seal ring (22) and exterior seal ring (21), exterior seal ring (21) is for adopting rubber or macromolecular material and by compression molding or injection molding structure; Inner seal ring (22) is by adopting formed support of macromolecular material (23) and PTFE sealing lip (24) (25) to constitute, and the support (23) of inner seal ring (22) is integral structure with PTFE sealing lip (24) (25) sheet by injection moulding, has improved sealing reliability; The fit on face of inner seal ring (22) is on it, be respectively equipped with upside boss (26) and downside boss (27) on the following both sides, on the interior fitting surface of exterior seal ring (21) on it, be respectively equipped with upside depression (29) and downside depression (30) on the following both sides, upside boss (26) is corresponding with downside depression (30), downside boss (27) is corresponding with upside depression (29), the fit on face of inner seal ring (22) adopts mutually nested structure mutually to make up with downside depression (30) and downside boss (27) with upside depression (29) by upside boss (26) with the interior fitting surface of exterior seal ring (21), between upside boss (26) and downside boss (27), form and downside depression (30) and anchor ring (28) structure of upside depression (29) on same ring surface, then mutually nested cooperating structure has adopted the radial fit mode, exterior seal ring (21) and inner seal ring (22) mutual displacement have in the axial direction been avoided, thereby form the fabricated structure of one, and mutually nested boss intensity makes that assembling pressure obtains transmitting between inner seal ring (22) and exterior seal ring (21), thereby assurance inner seal ring (22) and exterior seal ring (21) are finished assembling with the combining form of integral body.
2. combined type PTFE oil sealing according to claim 1 is characterized in that: upside boss (26) and downside boss (27) form even distribution at circumference, and alternately occur with downside depression (30) and upside depression (29) respectively, thus formative gear shape structure.
3. combined type PTFE oil sealing according to claim 1, it is characterized in that: inner seal ring (22) adopts interference fit with exterior seal ring (21), make anchor ring (28) and corresponding with it upside boss (26) and downside boss (27) form interference fit, thereby the realization reliable sealing is avoided sealing medium to form at fitting surface and is revealed.
4. combined type PTFE oil sealing according to claim 1 is characterized in that: the quantity of the PTFE sealing lip (24) (25) on the inner seal ring (22) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206221931U CN201851661U (en) | 2010-11-24 | 2010-11-24 | Combined-type polytetrafluoroethylene (PTFE) oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206221931U CN201851661U (en) | 2010-11-24 | 2010-11-24 | Combined-type polytetrafluoroethylene (PTFE) oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851661U true CN201851661U (en) | 2011-06-01 |
Family
ID=44094052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206221931U Expired - Fee Related CN201851661U (en) | 2010-11-24 | 2010-11-24 | Combined-type polytetrafluoroethylene (PTFE) oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851661U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021213138A1 (en) * | 2020-04-21 | 2021-10-28 | 烟台润蚨祥油封有限公司 | Low friction sealing system for shock absorber |
-
2010
- 2010-11-24 CN CN2010206221931U patent/CN201851661U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021213138A1 (en) * | 2020-04-21 | 2021-10-28 | 烟台润蚨祥油封有限公司 | Low friction sealing system for shock absorber |
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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: 20131124 |