CN207514239U - A kind of special-shaped seal ring - Google Patents
A kind of special-shaped seal ring Download PDFInfo
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- CN207514239U CN207514239U CN201721415150.4U CN201721415150U CN207514239U CN 207514239 U CN207514239 U CN 207514239U CN 201721415150 U CN201721415150 U CN 201721415150U CN 207514239 U CN207514239 U CN 207514239U
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- Prior art keywords
- sealing ring
- main body
- special
- shaped seal
- sealing
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Abstract
The utility model is related to a kind of special-shaped seal ring, including sealing ring main body（1）, which is central portion, internal hollow out；Sealing ring main body（1）Including upper plane（A）, lower plane（B）And multiple curved surfaces.The sealing performance of the special-shaped seal ring of the utility model is more stablized, and service life is longer, suitable for the assembling of all kinds of complicated assemblies.Sealing ring main body（1）Upper and lower side be also provided with annular groove（2）, so as to increase contact, improve sealing reliability；The sealing ring will not generate very big resistance after placing for a long time, reduce piston motion resistance.
Description
Technical field
It is close in particular to a kind of abnormity the present invention relates to the parts sealing ring technical field of compressed air circulation
Seal.
Background technology
Sealing ring generally use O-ring seal of the prior art, there are serious wears in assembling, disassembly process, make
With the problem of service life is partially short, sealing effect is poor, narrow application range.
Such as the Chinese invention patent that publication No. is 104279327 A of CN, it discloses a kind of automobile special-shaped seal ring,
Include the circle body of annular, the circular in cross-section of the circle body, the circle body radially offers radial groove in one week, described
Radial groove at least two is simultaneously uniformly distributed along the circle body center, is uniformly provided with four or six on the circle body in an axial direction
Axial notch, center is provided with blind round hole in an axial direction in the circle body, and the blind round hole has multiple and along the circle body
The heart is uniformly distributed.Compared with prior art, the present invention existing automobile special-shaped seal ring installation inconvenience can be solved, it is easily damaged,
The problem of service life is short.The sealing ring is only used for the hole interior sealing of parts, narrow scope of application, and in the outside of circle body
Be provided with groove, in seal process can there are it is poorly sealed the phenomenon that.
Invention content
In order to solve above-mentioned technological deficiency of the existing technology, the purpose of the present invention is to provide a kind of profiled seals
Circle, solves the problems, such as that serious wear, stability are poor in the prior art, service life is short.
In order to realize above-mentioned purpose of design, the scheme that the present invention uses is as follows：
The special-shaped seal ring of the present invention, including sealing ring main body, which is central portion, internal hollow out；Sealing ring
Main body includes upper plane, lower plane and multiple curved surfaces.The sealing performance of the special-shaped seal ring of the present invention is more stablized, and uses the longevity
Order it is longer, suitable for the assembling of all kinds of complicated assemblies.The upper and lower side of sealing ring main body is also provided with annular groove, is connect so as to increase
Touch pressure improves sealing reliability；The sealing ring will not generate very big resistance after placing for a long time, reduce piston motion resistance
Power.
Preferably, the sealing ring main body further includes the first seal, the second seal and third seal.
In any of the above-described scheme preferably, the sealing ring main body selects elastic material.
In any of the above-described scheme preferably, the circumference of the sealing ring main body is in arc-shaped.When compressed air is from close
The side of seal main body enters, and the side for making sealing ring is downward（On）It squeezes, in the case of compressed air active force, sealing
The opposite side of circle squeezes inner wall with outside, plays sealing function.
In any of the above-described scheme preferably, the sealing ring main body selects the polytetrafluoroethyl-ne after nitrile rubber and fluorination
Alkene film.Nitrile rubber is selected to ensure that the elasticity of rubber, ensure that the sealing of rubber；Friction is reduced using polytetrafluoroethylene film
Power improves wearability, extends service life.
Special-shaped seal ring of the invention has the following advantages in summary：It is recessed that the upper and lower side of sealing ring main body is also provided with annular
Slot so as to increase contact, improves sealing reliability；The sealing ring will not generate very big resistance after placing for a long time
Power reduces piston motion resistance；When wear occurs, under the influence of air pressure can auxiliary seal, increase reliability.
Description of the drawings
Fig. 1 is the structure diagram of a preferred embodiment of special-shaped seal ring according to the invention.
Fig. 2 is the non-return state diagram of preferred embodiment shown in Fig. 1 of special-shaped seal ring according to the invention.
Fig. 3 is the matching chart of preferred embodiment and sealed product shown in Fig. 1 of special-shaped seal ring according to the invention.
Fig. 4 is the usage state diagram of preferred embodiment shown in Fig. 1 of special-shaped seal ring according to the invention.
Specific embodiment
The following description is substantially only exemplary and is not intended to the limitation disclosure, application or purposes.Below
The specific embodiment of the special-shaped seal ring of the present invention is further described with reference to Figure of description.
As shown in Figure 1, the structure diagram of special-shaped seal ring according to the invention.
The special-shaped seal ring of the present invention, including sealing ring main body 1, which is central portion, internal hollow out；Sealing ring
Main body 1 includes upper plane A, lower plane B and multiple curved surfaces.The sealing performance of the special-shaped seal ring of the present invention is more stablized, and makes
With longer life expectancy, suitable for the assembling of all kinds of complicated assemblies.The upper and lower side of sealing ring main body 1 is also provided with annular groove 2, so as to increase
Big contact, improves sealing reliability；The sealing ring will not generate very big resistance after placing for a long time, reduce piston
The resistance of motion.
In the present embodiment, the sealing ring main body 1 further includes the first seal 3, the second seal 4 and third seal
5。
In the present embodiment, the sealing ring main body 1 selects elastic material.
In the present embodiment, the circumference of the sealing ring main body is in arc-shaped.When compressed air is from the one of sealing ring main body
Side enters, and the side for making sealing ring is downward（On）Squeeze, in the case of compressed air active force, the opposite side of sealing ring with
Outside squeezes inner wall, plays sealing function.
In the present embodiment, the sealing ring main body 1 selects the polytetrafluoroethylene film after nitrile rubber and fluorination.Select fourth
Nitrile rubber ensure that the elasticity of rubber, ensure that the sealing of rubber；Frictional force is reduced using polytetrafluoroethylene film, is improved resistance to
Mill property, extends service life.
The special-shaped seal ring of the present invention is the gauge pressure of 0-10bar for compressed air sealing part, usable range, and can be used
In Various Complex general assembly.
As shown in Fig. 2, the non-return state diagram of preferred embodiment shown in Fig. 1 of special-shaped seal ring according to the invention（P is represented
Air circulation direction）.
Compressed air is entered the inside of sealing ring chamber by P directions, due to air pressure so that sealing ring is by introversion
It expands outside, abnormity circle is made to be squeezed at the first seal 3, the second seal 4, third seal 5 to cooperation product, cause close
Fitting, so as to reach the state of sealing.
Referring next to shown in Fig. 3, Fig. 4, the sealing of preferred embodiment shown in Fig. 1 of special-shaped seal ring according to the invention
State diagram（P1, P2 represent air circulation direction）.
Special-shaped seal ring is placed in sealed product 6 first, and the inner wall of the sealing ring and sealed product 6 is bonded to each other, pressure
Contracting air is by P1（P2) direction enters the cavity of sealing ring, due to compressed air pressure, the first seal 3 at this time（The
Two seals 4）In the state not being bonded, compressed air is to the second seal 4（First seal 3）It squeezes, forms to two
Side and the offside air pressure to air intake vent, so as to obtain the second seal 4（First seal 3）With third seal 5
The effect fitted closely has been finally reached the second seal 4（First seal 3）The effect sealed with third seal 5.
Non-return acts on：On the basis of above-mentioned steps, P1（P2）The compressed air in direction removes suddenly, the gas in cavity
To the first sealing 3（Second seal 4）It washes away, due to compressed air active force, makes abnormity circle interior expansion, abnormity is enclosed to first
The state that the extruding of 3 and second seal 4 of seal is fitted closely, causes the compressed air in cavity that can not flow back to P1
(P2) mouth, so as to obtain the effect of non-return.
Special-shaped seal ring of the invention has the following advantages in summary：The upper and lower side of sealing ring main body 1 is also provided with annular
Groove 2 so as to increase contact, improves sealing reliability；The sealing ring will not generate very big after placing for a long time
Resistance reduces piston motion resistance；When wear occurs, under the influence of air pressure can auxiliary seal, increase reliability.
It will be apparent to those skilled in the art that the special-shaped seal ring of the present invention includes arbitrary group of each section in this specification
It closes.As space is limited and in order to make specification concise, these combinations are not discussed in detail, but seen this specification one by one herein
Afterwards, each section being made of this specification arbitrarily to combine the scope of the present invention formed self-evident.
Claims (6)
1. a kind of special-shaped seal ring, including sealing ring main body（1）, it is characterised in that：Sealing ring main body（1）For central portion,
Internal hollow out；Sealing ring main body（1）Including upper plane（A）, lower plane（B）And multiple curved surfaces.
2. special-shaped seal ring as described in claim 1, it is characterised in that：Sealing ring main body（1）Upper and lower side be also provided with annular
Groove（2）.
3. special-shaped seal ring as claimed in claim 1 or 2, it is characterised in that：Sealing ring main body（1）Further include the first seal
（3）, the second seal（4）With third seal（5）.
4. special-shaped seal ring as claimed in claim 1 or 2, it is characterised in that：Sealing ring main body（1）Select elastic material.
5. special-shaped seal ring as claimed in claim 1 or 2, it is characterised in that：Sealing ring main body（1）Circumference be in arc-shaped.
6. special-shaped seal ring as claimed in claim 4, it is characterised in that：Sealing ring main body（1）Select nitrile rubber and fluorination
Polytetrafluoroethylene film afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721415150.4U CN207514239U (en) | 2017-10-30 | 2017-10-30 | A kind of special-shaped seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721415150.4U CN207514239U (en) | 2017-10-30 | 2017-10-30 | A kind of special-shaped seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207514239U true CN207514239U (en) | 2018-06-19 |
Family
ID=62534610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721415150.4U Active CN207514239U (en) | 2017-10-30 | 2017-10-30 | A kind of special-shaped seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207514239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676488A (en) * | 2017-10-30 | 2018-02-09 | 瑞立集团瑞安汽车零部件有限公司 | A kind of special-shaped seal ring |
-
2017
- 2017-10-30 CN CN201721415150.4U patent/CN207514239U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676488A (en) * | 2017-10-30 | 2018-02-09 | 瑞立集团瑞安汽车零部件有限公司 | A kind of special-shaped seal ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210622 Address after: No.2666, Development Zone Avenue, Ruian Economic Development Zone, Wenzhou City, Zhejiang Province, 325200 Patentee after: Zhejiang Ruili air compressor equipment Co.,Ltd. Address before: Ruian City, Wenzhou City, 325200 Zhejiang Province Economic Development Zone No. 1169 Meng Lu Patentee before: Ruili Group Ruian Auto Parts Co.,Ltd. |