CN201103689Y - High-pressure dustproof ring - Google Patents
High-pressure dustproof ring Download PDFInfo
- Publication number
- CN201103689Y CN201103689Y CNU2007200285618U CN200720028561U CN201103689Y CN 201103689 Y CN201103689 Y CN 201103689Y CN U2007200285618 U CNU2007200285618 U CN U2007200285618U CN 200720028561 U CN200720028561 U CN 200720028561U CN 201103689 Y CN201103689 Y CN 201103689Y
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- Prior art keywords
- lip
- dust ring
- high pressure
- utility
- model
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- 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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Abstract
The utility model discloses a high-pressure dustproof ring, which is an improvement of the current dustproof ring on structure and material; polyurethane materials of wear resistance, oil resistance and high pressure resistance are adopted; an accessory lip structure of dustproof is added; the height of an inner lip inside a main lip is lower than that of an outer lip, so the high-pressure dustproof ring has the advantages of realizing double functions of being dustproof and sealing oil and prolonging the service life.
Description
Technical field
The utility model relates to the sealed product in the oil hydraulic cylinder, specifically, is a kind of high pressure dust ring.
Background technique
In oil hydraulic cylinder, adopt oil sealing sealing hydraulic oil, and, generally speaking, adopt the high pressure dust ring of Nitrile Rubber manufacture of materials to prevent dust in oil hydraulic cylinder edge for preventing that the outside dust from entering oil hydraulic cylinder inside.Because Nitrile Rubber is not wear-resisting, often this high pressure dust ring is bad when oil sealing is also unspoiled, and oil hydraulic cylinder is not had double action dustproof, oil sealing.
Therefore the material to the high pressure dust ring needs further improvement.Also need to improve in configuration aspects in addition.
Summary of the invention
The utility model provides a kind of high pressure dust ring, can solve fragile, the dustproof bad problem of effect that exists in the prior art.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of high pressure dust ring comprises that by the main lip of forming of epipharynx and outer lip between epipharynx and the outer lip notch is arranged, described dust ring inner ring is provided with secondary lip.
In the technical solution of the utility model, also have following technical characteristics: described inner lip height is lower than the outer lip height.
Wherein, inner lip, outer lip and secondary lip all adopt interference fit.
For increasing wear-resisting, oil resistant of the present utility model and anti-high-voltage performance, whole dust ring adopts polyurethane material to make.
Compared with prior art, advantage of the present utility model and good effect are: the utility model is by to the existing improvement of dust ring on structure and material: the polyurethane material that adopts wear-resisting, oil resistant and anti-high pressure, increased the secondary procheilon structure of dust-tight on the structure, and the inner lip height in the main lip is lower than the outer lip height, make the utility model realize double action dustproof, oil sealing, and prolong in the life-span.
Description of drawings
Fig. 1 is a plan view of the present utility model;
Fig. 2 is a plan view of the present utility model;
Fig. 3 is that the A-A of Fig. 2 analyses and observe sectional view;
Wherein: 1, high pressure dust ring; 10, main lip; 11, outer lip; 11-1, outer lip; 12, epipharynx; 12-1, inner lip; 13, notch; 20, secondary lip; 21, secondary lip.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, the whole high pressure dust ring of 1 representative, integral body is the ring bodies of being made by polyurethane material.Wherein, the epipharynx 12 and the secondary lip 20 of dust ring inner ring are held axis body tightly, and the main lip 10 of dust ring is oil sealing one end, epipharynx 12 sealed high pressure oil in the main lip 10, outer lip 11 seal greases in the main lip have notch 13 between epipharynx 12 and the outer lip 11, and secondary lip 20 is envelope dirt one ends.
Wherein, inner lip 12-1, outer lip 11-1 and secondary lip 21 all adopt interference fit, and promptly inner lip 12-1 and secondary lip 21 are to form interference fit with the axis body outer surface, and the internal surface in outer lip 11-1 and hole forms interference fit.Wherein, inner lip 12-1 highly is lower than outer lip 11-1 height, and inner lip 12-1 and outer lip 11-1 height height difference h are 1mm, and the thickness of epipharynx is greater than outer lip, like this when bearing high pressure, make pressure that epipharynx bears greater than outer lip pressure, thereby make epipharynx seize power greater than outer lip.
During work, the axis body relative opening of oil hydraulic cylinder is a linear reciprocating motion, the utility model is mounted between axis body and the hole, wherein epipharynx is to contact with the axis body outer surface with secondary lip, outer lip is to contact with the internal surface in hole, thereby axis body and high pressure dust ring are relative movement, forms motive sealing, the hole is relative static with the high pressure dust ring, forms static seal.The structure that epipharynx is lower than outer lip has guaranteed the harmonious property of above-mentioned motive sealing and static seal.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (3)
1. a high pressure dust ring comprises the main lip of being made up of epipharynx and outer lip, between epipharynx and the outer lip notch is arranged, and it is characterized in that: described dust ring inner ring is provided with secondary lip.
2, high pressure dust ring according to claim 1 is characterized in that: described inner lip height is lower than the outer lip height.
3, high pressure dust ring according to claim 1 and 2 is characterized in that: whole dust ring adopts polyurethane material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200285618U CN201103689Y (en) | 2007-09-30 | 2007-09-30 | High-pressure dustproof ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200285618U CN201103689Y (en) | 2007-09-30 | 2007-09-30 | High-pressure dustproof ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201103689Y true CN201103689Y (en) | 2008-08-20 |
Family
ID=39950715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200285618U Expired - Fee Related CN201103689Y (en) | 2007-09-30 | 2007-09-30 | High-pressure dustproof ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201103689Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128267A (en) * | 2010-01-12 | 2011-07-20 | Nok株式会社 | Sealing system |
| CN102954224A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Dustproof seal ring |
| CN102971557A (en) * | 2011-04-18 | 2013-03-13 | Nok株式会社 | Sealing system |
| CN104315149A (en) * | 2014-10-24 | 2015-01-28 | 中国工程物理研究院化工材料研究所 | Dynamic sealing structure resistant to high temperature and high pressure |
| 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 |
-
2007
- 2007-09-30 CN CNU2007200285618U patent/CN201103689Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128267A (en) * | 2010-01-12 | 2011-07-20 | Nok株式会社 | Sealing system |
| CN102128267B (en) * | 2010-01-12 | 2015-11-25 | Nok株式会社 | Sealing system |
| CN102971557A (en) * | 2011-04-18 | 2013-03-13 | Nok株式会社 | Sealing system |
| CN102954224A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Dustproof seal ring |
| CN104315149A (en) * | 2014-10-24 | 2015-01-28 | 中国工程物理研究院化工材料研究所 | Dynamic sealing structure resistant to high temperature and high pressure |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: QINGDAO HILYWILL ADVANCED MATERIALS TECHNOLOGY CO. Free format text: FORMER NAME: QINGDAO HILYWILL SEALING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 266113 Hetao Industrial Zone, Chengyang District, Shandong, Qingdao Patentee after: Qingdao Hilywill Advanced Materials Technology Co., Ltd. Address before: 266113 Hetao Industrial Zone, Chengyang District, Shandong, Qingdao Patentee before: Qingdao Hilywill Sealing Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20130930 |