CN202812215U - Dustproof oil seal - Google Patents
Dustproof oil seal Download PDFInfo
- Publication number
- CN202812215U CN202812215U CN2012204291498U CN201220429149U CN202812215U CN 202812215 U CN202812215 U CN 202812215U CN 2012204291498 U CN2012204291498 U CN 2012204291498U CN 201220429149 U CN201220429149 U CN 201220429149U CN 202812215 U CN202812215 U CN 202812215U
- Authority
- CN
- China
- Prior art keywords
- annular protrusion
- oil seal
- dust seal
- sealing
- dustproof oil
- 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 discloses a dustproof oil seal which comprises a body (1), a first circular axial groove (2) is formed in one end of the body (1), a circular protrusion (3) distributed coaxially arranged is arranged at the other end of the body (1), the side face of the circular protrusion (3) is a circular conical surface, and an inner hole is a cone hole with a big interior and a small exterior. The dustproof oil seal is good in seal effect.
Description
Technical field
The utility model relates to a kind of anti-dust seal.
Background technique
Sealing is to prevent fluid or material or the part of solid particle from leaking and prevent the component of the intrusion machinery equipment inside such as introduced contaminants such as dust and moisture between adjacent junction plane.A kind of anti-dust seal is arranged at present, and namely similar y-shaped ring relies on its lip limit of opening to be affixed on the sealing pair coupled face.During without interior pressure, only the distortion because of procheilon produces very little contact.In the situation of sealing, and on the every bit that sealing medium contact the normal pressure that equates with pressure medium is arranged all, so lip circle bottom will be subject to axial compression, lip is subject to axial compression, contacts to broaden while contact stress increase with sealing surface.When interior pressure raise again, the distribution form of contact and size further changed, and lip cooperates tightr with sealing surface, so good airproof performance, but in special occasion, when namely two ends all needed good sealing effect, the sealing effect of Sealing was relatively relatively poor like this.
The model utility content
The technical problems to be solved in the utility model is that a kind of anti-dust seal of good sealing effect is provided.
The technical solution of the utility model is, a kind of anti-dust seal with following structure is provided, comprise body, one end of described body is provided with ring shaped axial the first groove, the other end of described body is provided with the annular protrusion of axial distribution, the side of described annular protrusion is conical surface, and endoporus is interior large outer little taper hole.
The maximum outside diameter of described annular protrusion is less than the external diameter of body.
The height of described annular protrusion is 1.0～1.5mm.
After adopting above structure, the utility model compared with prior art, have the following advantages: because the other end of described body is provided with ring shaped axial the second groove, Sealing also in the extruding of the other end liquid body pressure, makes annular protrusion produce deformation in original end Y type sealing simultaneously like this, inwardly extruding, more with the axle of pressing close to be contained in closely in the center hole, play good sealing, make like this two ends of Sealing that good sealing effect is all arranged.
Description of drawings
Accompanying drawing is the structural representation of a kind of anti-dust seal of the present utility model.
As shown in the figure: 1, body, the 2, first groove, 3, annular protrusion.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in the figure, a kind of anti-dust seal of the present utility model comprises body 1, one end of described body 1 is provided with ring shaped axial the first groove 2, the other end of described body 1 is provided with the annular protrusion 3 of axial distribution, and the side of described annular protrusion 3 is conical surface, and endoporus is interior large outer little taper hole.
The maximum outside diameter of described annular protrusion 3 is less than the external diameter of body 1.
The height of described annular protrusion 3 is 1.0～1.5mm.
Claims (3)
1. anti-dust seal, comprise body (1), one end of described body (1) is provided with ring shaped axial the first groove (2), it is characterized in that: the other end of described body (1) is provided with the annular protrusion (3) of axial distribution, the side of described annular protrusion (3) is conical surface, and endoporus is interior large outer little taper hole.
2. a kind of anti-dust seal according to claim 1, it is characterized in that: the maximum outside diameter of described annular protrusion (3) is less than the external diameter of body (1).
3. a kind of anti-dust seal according to claim 1, it is characterized in that: the height of described annular protrusion (3) is 1.0～1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204291498U CN202812215U (en) | 2012-08-21 | 2012-08-21 | Dustproof oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204291498U CN202812215U (en) | 2012-08-21 | 2012-08-21 | Dustproof oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812215U true CN202812215U (en) | 2013-03-20 |
Family
ID=47871085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204291498U Expired - Fee Related CN202812215U (en) | 2012-08-21 | 2012-08-21 | Dustproof oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202812215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611627A (en) * | 2018-12-21 | 2019-04-12 | 宁波联鹰工程塑料五金有限公司 | It is pressurized seal washer |
-
2012
- 2012-08-21 CN CN2012204291498U patent/CN202812215U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611627A (en) * | 2018-12-21 | 2019-04-12 | 宁波联鹰工程塑料五金有限公司 | It is pressurized seal washer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20150821 |
|
| EXPY | Termination of patent right or utility model |