CN104235378B - Automatic pressure-relief seal ring - Google Patents
Automatic pressure-relief seal ring Download PDFInfo
- Publication number
- CN104235378B CN104235378B CN201410414946.2A CN201410414946A CN104235378B CN 104235378 B CN104235378 B CN 104235378B CN 201410414946 A CN201410414946 A CN 201410414946A CN 104235378 B CN104235378 B CN 104235378B
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- China
- Prior art keywords
- sealing ring
- ring body
- automatic pressure
- positioning
- stupefied
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Abstract
The invention discloses an automatic pressure-relief seal ring which comprises a seal ring body, wherein the seal ring body is provided with an inner round seal lip and an inner round seal lip between which a V-shaped included angle is formed; the inner side of the seal ring body is further provided with an oil drainage passage. The oil drainage passage is arranged on the automatic pressure-relief seal ring, so that residual or deteriorated and polluted lubricating greases can be discharged from the inner round seal lip through the oil drainage passage in a lubricating grease supplementing or replacing process; when excessive pressure of a seal cavity is caused by mechanism motion, automatic pressure relief also can be realized, and external dust is effectively prevented from entering an articulation piece. The automatic pressure-relief seal ring is applicable to the field of sealing pieces.
Description
Technical field
The present invention relates to seal field, more particularly to a kind of automatic pressure release sealing ring.
Background technology
At present, reliability and service life are being required in higher construction machinery industry, a lot of structures mostly adopt oil
Grease lubrication, needs with seal, overall structure to be sealed, the reliability of the property relationship of seal to product and use the longevity
Life.Though conventional dust ring, framework dustproof loop etc. can play the effect stoping foreign matter, dust from entering within annular seal space,
It is that such seal is easily extruded groove or damage under pressure during filling lubricating grease；Conventional y shape circle
Because sealing property is more excellent than dust ring, when pressurization supplements or changes lubricating grease, easily cause lubrication in confined space
Fat cannot inject or inject the phenomenon of difficulty, leads to unnecessary or pollution lubricating grease can not arrange from this sealing position
Go out.
Content of the invention
For solving the above problems, the present invention provides one kind can effectively fill lubricating grease, dust-proof and carry out self-relieving
Sealing ring.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of automatic pressure release sealing ring, including sealing ring body, sealing ring body is provided with cylindrical sealing lip and inner circle is close
Envelope lip, is formed as v clevis angle, is additionally provided with drain path inside sealing ring body between cylindrical sealing lip and inner circle sealing lip.
It is further used as the improvement of technical solution of the present invention, the inner side of sealing ring body is uniform along sealing ring body inner headed face
Some grooves are distributed with or positioning is stupefied.
It is further used as the improvement of technical solution of the present invention, when sealing ring is originally distributed with some grooves in vivo, each groove is
Drain path, the protruding parts between adjacent groove are used for positioning, and prevent the upset of sealing ring body or play.
Be further used as the improvement of technical solution of the present invention, groove be shaped as semicircle or triangle.
Be further used as the improvement of technical solution of the present invention, sealing ring be originally distributed with vivo some positioning stupefied when, positioning stupefied
For positioning, the drain path that the region between adjacent positioning is stupefied is overflowed as pressure release or lubricating grease.
It is further used as the improvement of technical solution of the present invention, semicircle that what positioning was stupefied be shaped as, rectangle or trapezoidal.
Be further used as the improvement of technical solution of the present invention, cylindrical sealing lip and inner circle sealing lip highly consistent.
It is further used as the improvement of technical solution of the present invention, inner circle sealing lip thickness is less than cylindrical sealing lip.
Be further used as the improvement of technical solution of the present invention, sealing ring body adopt macromolecular material or composite or
Person's metal material processing is made.
Beneficial effects of the present invention: this automatic pressure release sealing ring is provided with drain path, in the mistake supplementing or changing lubricating grease
Cheng Zhong, the lubricating grease being easy to unnecessary or rotten pollution passes through drain path from the discharge of inner circle sealing lip, when mechanism kinematic is made
When becoming sealing cavity pressure excessive, also enable releasing pressure automatically simultaneously, and can effectively prevent external dust from entering inside articulated elements.
Brief description
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is the specific embodiment of automatic pressure release sealing ring of the present invention；
Fig. 2 is automatic pressure release sealing ring top view of the present invention；
Fig. 3 be along along Fig. 2 a-a to revolved sectional view.
Specific embodiment
With reference to Fig. 1～Fig. 3, the present invention is a kind of automatic pressure release sealing ring, including sealing ring body 3, on sealing ring body 3
It is provided with cylindrical sealing lip 1 and inner circle sealing lip 2, between cylindrical sealing lip 1 and inner circle sealing lip 2, is formed as v clevis angle, sealing ring is originally
It is additionally provided with drain path inside body 3, and can effectively prevent external dust from entering inside articulated elements.
This automatic pressure release sealing ring is provided with drain path, supplement or change lubricating grease during, be easy to unnecessary or
The lubricating grease of rotten pollution is discharged from inner circle sealing lip 2 by drain path, when mechanism kinematic causes sealing cavity pressure excessive
When, also enable releasing pressure automatically simultaneously.
As the preferred embodiment of the present invention, the inner side of sealing ring body 3 is uniformly distributed along sealing ring body 3 inner headed face
There are some grooves 4 or positioning stupefied.
As the preferred embodiment of the present invention, when some groove 4 is distributed with sealing ring body 3, each groove 4 is draining
Passage, the protruding parts between adjacent groove 4 are used for positioning, and prevent sealing ring body 3 from overturning or play.
As the preferred embodiment of the present invention, groove 4 be shaped as semicircle or triangle.
When inner headed face several grooves 4 of precedence partition, the passage that groove 4 overflows mainly as pressure release or lubricating grease,
Protruding parts between adjacent grooves 4 can play certain positioning action, prevents u shape to be sealed in upset or play in groove, recessed
Groove 4 can function as described above, and the section configuration of groove is not limited to semicircle or triangle etc..
As the preferred embodiment of the present invention, be distributed with sealing ring body 3 some positioning stupefied when, positioning stupefied for fixed
Position, the drain path that the region between adjacent positioning is stupefied is overflowed as pressure release or lubricating grease.
As the preferred embodiment of the present invention, position and stupefied be shaped as semicircle, rectangle or trapezoidal.
When inner headed face is preferably distributed several and positions stupefied, positioning stupefied primarily serving prevents sealing ring body 3 in groove
Interior play or the effect of upset, the passage that the region between adjacent positioned is stupefied can be overflowed as pressure release or lubricating grease, positioning is stupefied
Can function as described above.
As the preferred embodiment of the present invention, cylindrical sealing lip 1 and inner circle sealing lip 2 highly consistent.
As the preferred embodiment of the present invention, inner circle sealing lip 2 thickness is less than cylindrical sealing lip 1.
As the preferred embodiment of the present invention, sealing ring body 3 adopts macromolecular material or composite or gold
Belong to materials processing to be made.
The cross sectional shape of this sealing ring body 3 is in u shape, and inside and outside circle all has one sealing lip, wherein inner circle sealing lip 2 phase
Sealing lip 1 is thiner to foreign round, it is to avoid sealing inner circle sealing lip 2 and bearing pin surface produce excessive contact stress and lead to pressurize
Phenomenon that during filling lubricating grease, unnecessary lubricating grease cannot overflow or the phenomenon that seal is extruded.
The inner circle EDS maps of this sealing ring body 3 several position stupefied or grooves 4, when inner headed face preferred distribution several
When positioning stupefied, positioning is stupefied to primarily serve the effect preventing sealing ring body 3 play or upset in groove, between adjacent positioned is stupefied
The passage that can overflow as pressure release or lubricating grease of region.When inner headed face several grooves 4 of precedence partition, groove 4 is main
The passage overflowing as pressure release or lubricating grease, the protruding parts between adjacent grooves 4 can play certain positioning action, prevent
Sealing ring body 3 overturns or play in groove.
During installation, outwardly, root can play prevention towards the lubricating grease direction being sealed, seal lip to this seal lip
External dust, impurity etc. enter the effect within hinge member, also act as the effect preventing lubricating grease leakage simultaneously.Due to lip
Outwardly, seal lip and the contact stress of groove will not increase with the rising of Fluid pressure, too high grease pressure energy
Enough realize releasing pressure automatically, supplement or change lubricating grease when, unnecessary or contaminated lubricating grease can automatically overflow it is ensured that
The loading of lubricating grease and lubricant effect.
Certainly, the invention is not limited to above-mentioned embodiment, and those of ordinary skill in the art are without prejudice to this
Equivalent variations or replacement also can be made, these equivalent modifications or replacement are all contained in the application right on the premise of spirit
Require in limited range.
Claims (5)
1. a kind of automatic pressure release sealing ring it is characterised in that: include sealing ring body (3), described sealing ring body (3) is provided with
Cylindrical sealing lip (1) and inner circle sealing lip (2), are formed as v clevis angle between described cylindrical sealing lip (1) and inner circle sealing lip (2),
It is additionally provided with drain path, described inner circle sealing lip (2) thickness is less than cylindrical sealing lip inside described sealing ring body (3)
(1), the inner side of described sealing ring body (3) is evenly distributed with some grooves (4) or positioning along sealing ring body (3) inner headed face
It is stupefied,
When some grooves (4) are distributed with described sealing ring body (3), each described groove (4) is drain path, and adjacent is described
Protruding parts between groove (4) are used for positioning, and prevent described sealing ring body (3) upset or play；
Be distributed with described sealing ring body (3) some positioning stupefied when, described positioning stupefied for positioning, adjacent described positioning is stupefied
Between the drain path that overflows as pressure release or lubricating grease of region.
2. according to claim 1 automatic pressure release sealing ring it is characterised in that: described groove (4) be shaped as semicircle or
Person's triangle.
3. according to claim 1 automatic pressure release sealing ring it is characterised in that: described positioning is stupefied to be shaped as semicircle, square
Shape or trapezoidal.
4. according to claim 1 automatic pressure release sealing ring it is characterised in that: described cylindrical sealing lip (1) and inner circle sealing
Lip (2) highly consistent.
5. according to any one in claims 1 to 3 automatic pressure release sealing ring it is characterised in that: described sealing ring this
Body (3) is made using macromolecular material or composite or metal material processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410414946.2A CN104235378B (en) | 2014-08-21 | 2014-08-21 | Automatic pressure-relief seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410414946.2A CN104235378B (en) | 2014-08-21 | 2014-08-21 | Automatic pressure-relief seal ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104235378A CN104235378A (en) | 2014-12-24 |
| CN104235378B true CN104235378B (en) | 2017-01-25 |
Family
ID=52224023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410414946.2A Active CN104235378B (en) | 2014-08-21 | 2014-08-21 | Automatic pressure-relief seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104235378B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828231A (en) * | 2015-06-02 | 2015-08-12 | 肖鑫生 | Whole structure of 360-degree full-circle-swinging inside-and-outside-ship-side (dual engine) contra-rotating propeller propelling plant |
| CN110425284B (en) * | 2019-09-04 | 2024-05-28 | 三一重型装备有限公司 | Sealing element |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB480116A (en) * | 1936-08-31 | 1938-02-17 | Tuck And Company Ltd | Improvements in steam, hydraulic and like packing |
| GB1475312A (en) * | 1973-10-12 | 1977-06-01 | Angus Co Ltd G | Piston or like sealing or packing |
| CN87215206U (en) * | 1987-12-23 | 1988-09-07 | 蔡道清 | V-sealing ring having fine sealing function |
| CN201384042Y (en) * | 2009-03-25 | 2010-01-20 | 东莞市步步高家用电器有限公司 | Soymilk machine shaft sealing structure |
| CN201924942U (en) * | 2011-01-20 | 2011-08-10 | 温中纯 | D-shaped seal ring |
| CN204061909U (en) * | 2014-08-21 | 2014-12-31 | 广州机械科学研究院有限公司 | A kind of automatic pressure release sealing ring |
-
2014
- 2014-08-21 CN CN201410414946.2A patent/CN104235378B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104235378A (en) | 2014-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180511 Address after: 510700 Room 202, 2 Xin Rui Road, Whampoa District, Guangzhou, Guangdong. Patentee after: Guangzhou baolite Sealing Technology Co. Ltd. Address before: 510700 Maogang Road, Whampoa District, Guangzhou, Guangdong Province, No. 828 Patentee before: Guangzhou Mechanical Engineering Research Institute Co., Ltd. |