CN201963865U - Inner and outer sealing lip and auxiliary lip piston gasket - Google Patents
Inner and outer sealing lip and auxiliary lip piston gasket Download PDFInfo
- Publication number
- CN201963865U CN201963865U CN2011200628328U CN201120062832U CN201963865U CN 201963865 U CN201963865 U CN 201963865U CN 2011200628328 U CN2011200628328 U CN 2011200628328U CN 201120062832 U CN201120062832 U CN 201120062832U CN 201963865 U CN201963865 U CN 201963865U
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- CN
- China
- Prior art keywords
- lip
- sealing lip
- outer sealing
- annular ring
- piston
- 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 piston sealing gasket suitable for various hydraulic oil tanks, in particular to an inner and outer sealing lip and auxiliary lip piston gasket, which includes an annular ring. The inner side of the upper periphery of the annular ring is provided with a circle of an inside sealing lip inclining towards the axis in the radial direction. The outer side of the upper periphery of the annular ring is provided with a circle of an outside sealing lip inclining away from the axis in the radial direction. The inner and outer sealing lip and auxiliary lip piston gasket is characterized in that the inner periphery of the annular circle is provided with a circle of an auxiliary lip protruding towards the axis in the axial direction. The lip edge of the inner sealing lip and the lip edge of the outer sealing lip are thin. The inner and outer sealing lip and auxiliary lip piston gasket adds the auxiliary lip which is in tight fit with the piston on the base of the inner sealing lip and the outer sealing lip, thereby improving sealing performance, achieving a guiding function and preventing the gasket from being skew. The inner sealing lip and the outer sealing lip are thin so that magnitude of interference of both the inner sealing lip and the outer sealing lip is reduced, elasticity of the inner sealing lip and the outer sealing lip is improved, and contact area and friction are reduced. Sealing performance of the inner sealing lip and the outer sealing lip is improved.
Description
Technical field
The utility model is a kind of piston packing that is used for all kinds of hydraulic jacks, and particularly a kind of interior outer seal lip adds secondary lip piston packing.
Background technique
Piston packing is a kind of device of being located in the outer surface of piston guide pin bushing groove, being used to prevent in-oil cylinder hydraulic oil seepage.The existing piston seal ring, its structure as shown in Figure 1, comprise an annular ring 1, the inboard of annular ring 1 upper periphery is provided with the interior sealing lip 2 that a circle radially tilts towards the axle center, the outside of annular ring 1 upper periphery is provided with a circle and radially carries on the back the outer seal lip 3 that the axle center tilts, the existing interior outer seal lip piston packing that uses, its seal friction resistance is big, wear-resisting property is poor, the life-span is short, and quality instability, often when reciprocating, produce oil seepage phenomena, cause hydraulic oil consumption to reach environmental pollution greatly.
Summary of the invention
The purpose of the utility model innovative technology is in order to overcome the defective that existing interior outer seal lip piston packing surface friction drag Da Yi produces seepage, to invent a kind of interior outer seal lip and add secondary lip piston packing.
The purpose of this utility model realizes as follows: outer seal lip adds secondary lip piston packing in described, comprise an annular ring, the inboard of annular ring upper periphery is provided with the interior sealing lip that a circle radially tilts towards the axle center, the outside of annular ring upper periphery is provided with one and encloses radially the outer seal lip of axle center inclination dorsad, it is characterized in that: the inner periphery at annular ring is provided with the secondary lip that a circle radially protrudes towards the axle center.
Sealing lip and outer seal lip in described, its lip limit thinner thickness.
Good effect of the present utility model is as follows: the utility model in sealing lip and the outer seal lip, has increased secondary lip one in adopting, secondary lip and tight with piston close, and have improved sealability, and play leading role, and it is crooked that seal ring is not produced; Because interior sealing lip and outer seal lip thinner thickness, the outer seal lip magnitude of interference all reduces in making, and has improved the elasticity of interior outer seal lip, has reduced area of contact, has reduced friction, has played the effect of outer seal lip sealability in improving.
Description of drawings
Fig. 1 is existing Y type piston packing structural drawing;
Fig. 2 is the utility model structural drawing.
Among the figure: annular ring 1, interior sealing lip 2, outer seal lip 3, secondary lip 4.
Embodiment
As shown in Figure 2, outer seal lip adds secondary lip piston packing in described, comprise an annular ring 1, the inboard of annular ring 1 upper periphery is provided with the interior sealing lip 2 that a circle radially tilts towards the axle center, the outside of annular ring 1 upper periphery is provided with one and encloses radially the outer seal lip 3 of axle center inclination dorsad, it is characterized in that: the inner periphery at annular ring is provided with the secondary lip 4 that a circle radially protrudes towards the axle center.
During use, the utility model is installed in the piston guide bush groove, but the utility model and existing interior outer seal lip piston packing are general parts, need not change the groove dimensions that seal ring is installed, so very easy to use.Because in sealing lip and the outer seal lip, increased secondary lip together in adopting, secondary lip and tight with piston close, thus sealability improved, and play leading role, it is crooked that seal ring is produced; Because interior sealing lip and outer seal lip thinner thickness, the outer seal lip magnitude of interference all reduces in making, and has improved the elasticity of interior outer seal lip, has reduced area of contact, has reduced friction, plays the effect that increases interior outer seal lip sealability.
Claims (2)
1. outer seal lip adds secondary lip piston packing in one kind, comprise an annular ring, the inboard of annular ring upper periphery is provided with the interior sealing lip that a circle radially tilts towards the axle center, the outside of annular ring upper periphery is provided with one and encloses radially the outer seal lip of axle center inclination dorsad, it is characterized in that: the inner periphery at annular ring is provided with the secondary lip that a circle radially protrudes towards the axle center.
2. outer seal lip adds secondary lip piston packing in according to claim 1, it is characterized in that: sealing lip and outer seal lip in described, its lip limit thinner thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200628328U CN201963865U (en) | 2011-03-11 | 2011-03-11 | Inner and outer sealing lip and auxiliary lip piston gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200628328U CN201963865U (en) | 2011-03-11 | 2011-03-11 | Inner and outer sealing lip and auxiliary lip piston gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963865U true CN201963865U (en) | 2011-09-07 |
Family
ID=44526401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200628328U Expired - Fee Related CN201963865U (en) | 2011-03-11 | 2011-03-11 | Inner and outer sealing lip and auxiliary lip piston gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963865U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720904A (en) * | 2012-06-12 | 2012-10-10 | 太原市煤气公司 | Special wing-shaped bent pad for movable joint |
| CN106763788A (en) * | 2016-12-16 | 2017-05-31 | 安徽亚兰密封件有限公司 | A kind of automobile durable type sealing ring |
| CN109764136A (en) * | 2019-03-01 | 2019-05-17 | 广州市阪上橡胶制品有限公司 | A kind of novel oil cylinder sealing element |
-
2011
- 2011-03-11 CN CN2011200628328U patent/CN201963865U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720904A (en) * | 2012-06-12 | 2012-10-10 | 太原市煤气公司 | Special wing-shaped bent pad for movable joint |
| CN102720904B (en) * | 2012-06-12 | 2016-05-11 | 太原市煤气公司 | The special wing bent pad of articulation |
| CN106763788A (en) * | 2016-12-16 | 2017-05-31 | 安徽亚兰密封件有限公司 | A kind of automobile durable type sealing ring |
| CN106763788B (en) * | 2016-12-16 | 2018-08-07 | 安徽亚兰密封件有限公司 | A kind of automobile durable type sealing ring |
| CN109764136A (en) * | 2019-03-01 | 2019-05-17 | 广州市阪上橡胶制品有限公司 | A kind of novel oil cylinder sealing element |
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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: 20110907 Termination date: 20140311 |