CN201944272U - Two-way lip dust ring - Google Patents
Two-way lip dust ring Download PDFInfo
- Publication number
- CN201944272U CN201944272U CN2011200628120U CN201120062812U CN201944272U CN 201944272 U CN201944272 U CN 201944272U CN 2011200628120 U CN2011200628120 U CN 2011200628120U CN 201120062812 U CN201120062812 U CN 201120062812U CN 201944272 U CN201944272 U CN 201944272U
- Authority
- CN
- China
- Prior art keywords
- dust
- ring
- lip
- dust ring
- way
- 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
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model provides dust rings for various pistons, in particular to a two-way lip dust ring, which comprises a ring-shaped ring, wherein an outer dust-proof lip that inclines towards an axle center in the radial direction is formed on an upper periphery of the ring-shaped ring in a circling manner; and the two-way lip dust ring is characterized in that an inner dust-proof lip inclining towards the axle center in the radial direction is formed on an inner periphery of the ring-shaped ring in a circling manner. The inner dust-proof lip and the outer dust-proof lip are arranged in the two-way lip dust ring, so that the dust-proof effect of the dust ring is improved greatly, the seepage of a medium oil film in an oil cylinder is effectively avoided especially, oil stain generation can be avoided, the service life of the dust ring is prolonged, and the pollution to the environment is avoided; in addition, the two-way lip dust ring and a conventional one-way lip dust ring are versatile, and the size of a groove used for mounting the dust ring does not need to be changed, so that the two-way lip dust ring is very convenient to use.
Description
Technical field
The utility model is a kind of dust ring that is used for all kinds of pistons, particularly a kind of two-way lip dust ring.
Background technique
Dust ring is that a kind of being located in the piston appearance guide pin bushing groove is used to prevent that dust, dirt, sand grains and metal fillings from entering in-oil cylinder device.Existing dust ring, its structure as shown in Figure 1, comprise an annular ring 1, the upper periphery of annular ring 1 is provided with the radially intilted outer dust excluder lips 2 of a circle, and this dust ring is unidirectional lip dust ring, when reciprocating motion of the pistons, can not prevent that the medium oil film oozes out in the cylinder body,, will engage with extraneous dust and form greasy dirt in case there is oil film to ooze out, greasy dirt can reduce the working life of dust ring, also can cause environmental pollution.
Summary of the invention
The purpose of this utility model is can not prevent that in order to overcome existing unidirectional lip dust ring the medium oil film oozes out next defective in the cylinder body, invents a kind of two-way lip dust ring.
The purpose of this utility model realizes as follows: described two-way lip dust ring, comprise an annular ring, the upper periphery of annular ring is provided with the dust excluder lips that a circle radially tilts towards the axle center, it is characterized in that: the inner periphery at annular ring is provided with the interior dust excluder lips that a circle radially tilts towards the axle center.
Good effect of the present utility model is as follows: owing to be provided with inside and outside two dust excluder lips, so improved the dustproof effect of dust ring greatly, particularly effectively prevented oozing out of the interior medium oil film of oil cylinder, avoided the generation of greasy dirt, prolonged the working life of dust ring, avoided pollution environment; The utility model and existing unidirectional lip dust ring be can be general element, need not change the groove dimensions that dust ring is installed, so very easy to use.
Description of drawings
Fig. 1 is existing unidirectional lip dust ring structural drawing;
Fig. 2 is the utility model structural drawing.
Among the figure: annular ring 1, outer dust excluder lips 2, interior dust excluder lips 3.
Embodiment
As shown in Figure 2, described two-way lip dust ring, comprise an annular ring 1, the upper periphery of annular ring 1 is provided with the outer dust excluder lips 2 that a circle radially tilts towards the axle center, it is characterized in that: the inner periphery at annular ring 1 is provided with the interior dust excluder lips 3 that a circle radially tilts towards the axle center.
During use, the utility model is installed in the guide pin bushing groove on the piston.But the utility model and existing unidirectional lip dust ring are universal components, need not change the groove dimensions that dust ring is installed, so very easy to use.Owing to be provided with inside and outside two dust excluder lips, so improved the dustproof effect of dust ring greatly, particularly effectively prevented oozing out of the interior medium oil film of oil cylinder, avoided the generation of greasy dirt, prolonged the working life of dust ring, avoided pollution to environment.
Claims (1)
1. a two-way lip dust ring comprises an annular ring, and the upper periphery of annular ring is provided with the outer dust excluder lips that a circle radially tilts towards the axle center, it is characterized in that: the inner periphery at annular ring is provided with the interior dust excluder lips that a circle radially tilts towards the axle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200628120U CN201944272U (en) | 2011-03-11 | 2011-03-11 | Two-way lip dust ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200628120U CN201944272U (en) | 2011-03-11 | 2011-03-11 | Two-way lip dust ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944272U true CN201944272U (en) | 2011-08-24 |
Family
ID=44471615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200628120U Expired - Fee Related CN201944272U (en) | 2011-03-11 | 2011-03-11 | Two-way lip dust ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201944272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027238A (en) * | 2018-09-27 | 2018-12-18 | 安徽龙川橡塑科技有限公司 | A kind of framework dustproof loop |
-
2011
- 2011-03-11 CN CN2011200628120U patent/CN201944272U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027238A (en) * | 2018-09-27 | 2018-12-18 | 安徽龙川橡塑科技有限公司 | A kind of framework dustproof loop |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2647890A3 (en) | Absorber Seal | |
| CN201944272U (en) | Two-way lip dust ring | |
| CN203730718U (en) | Combined seal bearing end cover for speed reducer | |
| CN202048205U (en) | Oil seal with oil block structure | |
| CN203857045U (en) | Novel dustproof ring | |
| CN203395151U (en) | Inner oil-resistant plate-type oil seal with dustproof cover and lip | |
| CN204253502U (en) | Cylinder piston structure-improved | |
| CN203363168U (en) | Sealing structure between automobile steering knuckle and drive shaft | |
| CN203442130U (en) | Sealed dustproof oil cylinder for forklift truck | |
| CN203363135U (en) | Axial oil seal | |
| CN203730744U (en) | Ball type piston structure in oil cylinder | |
| CN202251629U (en) | Air spring by adopting dual sealing structures | |
| CN203906573U (en) | Bearing | |
| CN203214639U (en) | Bearing device | |
| CN203867872U (en) | Novel oscillating plunger for oil pump | |
| CN203335830U (en) | Piston | |
| CN203532612U (en) | Oil seal structure for damper | |
| CN203067581U (en) | Universal joint with long-life wear-resistant stamping bearing structure | |
| CN204226428U (en) | Integral plane needle bearing | |
| CN203363159U (en) | Corrugated oil seal used for gearbox rotating shaft | |
| CN203442126U (en) | Sealed dustproof multi-stage hydraulic oil cylinder | |
| CN201810779U (en) | Speed reduction follow-up seal | |
| CN202768851U (en) | Novel high-speed outer sealing ring | |
| CN206495842U (en) | Double-rod high-pressure oil cylinder piston | |
| CN202612644U (en) | Oil seal ring of high-pressure plunger pump |
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: 20110824 Termination date: 20140311 |