CN207648135U - Double acting dust seal - Google Patents
Double acting dust seal Download PDFInfo
- Publication number
- CN207648135U CN207648135U CN201721846196.1U CN201721846196U CN207648135U CN 207648135 U CN207648135 U CN 207648135U CN 201721846196 U CN201721846196 U CN 201721846196U CN 207648135 U CN207648135 U CN 207648135U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- annular groove
- dust seal
- face
- double acting
- 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 Devices (AREA)
Abstract
The utility model is related to technical field of mechanical more particularly to a kind of double acting dust seals；Including sealing ring, the top of sealing ring is one to raise up and to the inclined dust seal lip in internal diameter of the seal ring face, first annular groove is offered in sealing ring outer diameter face, the bottom of sealing ring offers second annular groove, first annular groove is the first annular groove that cross section is open rectangle, second annular groove is the second annular groove for the c-type that cross section is opening upwards, corner between sealing ring bottom and sealing ring outer diameter face is set as outer chamfer face, and the corner between sealing ring bottom and aperture surface is set as inner chamfer face；Double acting dust seal provided by the utility model is simple in structure, use scope is wide and sealing performance is preferable.
Description
Technical field
The utility model is related to a kind of double acting dust seals.
Background technology
The importance of the sealing ring of mechanical equipment is self-evident in the prior art, decides that fluid is gentle in industrial automation
The transmission performance of body and the quality of sealed product, play critical effect in the industrial production, due to answering for work condition environment
Miscellaneous changeable, various heavy hydraulic equipment continuously emerges, and the requirement to sealed product is also higher and higher, especially many heavy hydraulics
Equipment needs double-action hydraulic, Pneumatic dustproof sealing.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to provide a kind of double cropping with peculiar dust seal lip
With dust seal, which can ensure reliable and stable sealing performance, and can bear higher pressure.
The top of double acting dust seal provided by the utility model, including sealing ring, sealing ring raises up for one
And to the inclined dust seal lip in internal diameter of the seal ring face, first annular groove, the sealing ring are offered in sealing ring outer diameter face
Bottom offer second annular groove, the first annular groove is the first annular groove that cross section is open rectangle, institute
State the second annular groove that second annular groove is the c-type that cross section is opening upwards, the sealing ring bottom and the sealing
Corner between circle outer diameter face is set as outer chamfer face, and the corner between the sealing ring bottom and aperture surface is set as inner chamfer
Face.
Further, the angle between the outer chamfer face and outer diameter face is 135 °.
Further, the angle between the inner chamfer face and aperture surface is 135 °.
Further, the angle formed between the dust seal lip and the internal diameter of the seal ring face is less than 160 °.
Further, the first annular groove include bottom rectangle face, close to the sealing ring bottom rectangular surfaces and
Rectangular surfaces at the top of the sealing ring, between the rectangular surfaces and the sealing ring outer diameter face of the sealing ring bottom
Corner is set as chamfering.
Further, the dust seal lip includes U-shaped protrusion and the extension that extends to the sealing ring outer diameter face,
Angle between the U-shaped protrusion and extension is more than or equal to 160 °.
Further, the angle between the extension and sealing ring outer diameter face is more than 90 °.
According to the above aspect of the present invention, the utility model has at least the following advantages：In order to solve in hydraulic pressure or pneumatic process
Anti-dust performance, and the service life that is easy tod produce to different medium sealing ring is short and sealing performance cannot be met the requirements etc. asks
Topic, double acting dust seal provided by the utility model is simple in structure, has peculiar dust seal lip, it is ensured that stabilization can
The sealing performance leaned on, and higher pressure can be born.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Description of the drawings
Fig. 1 is the sectional view of double acting dust seal provided by the utility model.
The meaning of each reference numeral is as follows in figure.
1 sealing ring, 2 aperture surface
3 dust seal lip, 4 outer diameter face
5 first annular groove, 6 second annular groove
7 sealing ring bottom, 8 outer chamfer face
9 inner chamfer face, 10 U-shaped protrusion
11 extensions
Specific implementation mode
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Referring to Fig. 1, a kind of double acting dust seal provided by the utility model, including sealing ring 1, the top of sealing ring 1
Portion is one to raise up and to 2 inclined dust seal lip 3 of internal diameter of the seal ring face, the first ring is offered in sealing ring outer diameter face 4
Connected in star 5, the bottom of sealing ring 1 offer second annular groove 6, and first annular groove 5 is that cross section is open rectangle
One annular groove, second annular groove 6 are the second annular groove for the c-type that cross section is opening upwards, sealing ring bottom 7 and close
Corner between seal outer diameter face 4 is set as outer chamfer face 8, the corner between sealing ring bottom 7 and aperture surface 2 be set as in fall
Edged surface 9.
It is mutual between the first annular groove 5 opened up, second annular groove 6 and dust seal lip 3 on sealing ring 1
Cooperation, can allow the double acting dust seal while with good dust-proof effect, possess the extrusion gap of bigger
And anti-extrusion ability, therefore with better dust-proof and sealing effect.
In order to preferably bear the pressure of sealing ring both sides, the angle between outer chamfer face 8 and outer diameter face 4 is 135 °, interior
Angle between fillet surface 9 and aperture surface 2 is 135 °.
In order to preferably play the dustproof effect of dust seal lip 3, shape between dust seal lip 3 and internal diameter of the seal ring face 2
At angle be less than 160 °.
In order to make first annular groove 5 play better anti-extrusion effect, first annular groove 5 include bottom rectangle face,
Rectangular surfaces close to sealing ring bottom and the rectangular surfaces at the top of sealing ring, the rectangular surfaces close to the bottom of sealing ring and sealing
Corner between circle outer diameter face 4 is set as chamfering.
Excessively serious deformation occurs for dust seal lip 3 in order to prevent, dust seal lip 3 include U-shaped protrusion 10 and to
The extension 11 that sealing ring outer diameter face 4 extends, the angle between U-shaped protrusion 10 and extension 11 are more than or equal to 160 °,
Angle between extension 11 and sealing ring outer diameter face 4 is more than 90 °.
Above are merely preferred embodiments of the utility model, it is not intended to limit the utility model, it is noted that for
For those skilled in the art, without deviating from the technical principle of the utility model, if can also make
Dry improvement and modification, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (7)
1. a kind of double acting dust seal, it is characterised in that：Including sealing ring, the top of sealing ring be one raise up and to
The inclined dust seal lip in internal diameter of the seal ring face offers first annular groove, the bottom of the sealing ring in sealing ring outer diameter face
Portion offers second annular groove, and the first annular groove is the first annular groove that cross section is open rectangle, and described the
Second ring groove is the second annular groove for the c-type that cross section is opening upwards, outside the sealing ring bottom and the sealing ring
Corner between diametric plane is set as outer chamfer face, and the corner between the sealing ring bottom and aperture surface is set as inner chamfer face.
2. double acting dust seal according to claim 1, it is characterised in that：Between the outer chamfer face and outer diameter face
Angle be 135 °.
3. double acting dust seal according to claim 1, it is characterised in that：Between the inner chamfer face and aperture surface
Angle be 135 °.
4. double acting dust seal according to claim 1, it is characterised in that：The dust seal lip and the sealing
The angle formed between circle aperture surface is less than 160 °.
5. double acting dust seal according to claim 1, it is characterised in that：The first annular groove includes bottom
Rectangular surfaces, the rectangular surfaces close to the sealing ring bottom and the rectangular surfaces at the top of the sealing ring, close to the sealing ring
Corner between the rectangular surfaces of bottom and the sealing ring outer diameter face is set as chamfering.
6. double acting dust seal according to claim 1, it is characterised in that：The dust seal lip includes U-shaped convex
The extension for going out portion and extending to the sealing ring outer diameter face, the angle between the U-shaped protrusion and extension be more than or
Equal to 160 °.
7. double acting dust seal according to claim 6, it is characterised in that：The extension and sealing ring outer diameter face
Between angle be more than 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721846196.1U CN207648135U (en) | 2017-12-26 | 2017-12-26 | Double acting dust seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721846196.1U CN207648135U (en) | 2017-12-26 | 2017-12-26 | Double acting dust seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207648135U true CN207648135U (en) | 2018-07-24 |
Family
ID=62878841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721846196.1U Expired - Fee Related CN207648135U (en) | 2017-12-26 | 2017-12-26 | Double acting dust seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207648135U (en) |
-
2017
- 2017-12-26 CN CN201721846196.1U patent/CN207648135U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 Termination date: 20181226 |