CN203627798U - Pneumatic sealing ring with special-shaped cross section - Google Patents
Pneumatic sealing ring with special-shaped cross section Download PDFInfo
- Publication number
- CN203627798U CN203627798U CN201320821861.7U CN201320821861U CN203627798U CN 203627798 U CN203627798 U CN 203627798U CN 201320821861 U CN201320821861 U CN 201320821861U CN 203627798 U CN203627798 U CN 203627798U
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- CN
- China
- Prior art keywords
- lip
- seal lip
- sealing ring
- sealing
- shaped cross
- 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.)
- Withdrawn - After Issue
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a pneumatic sealing ring with a special-shaped cross section. The pneumatic sealing ring comprises a seal lip, a main seal lip, a sealing ring root part and a secondary seal lip in injection moulding. A groove is formed between the seal lip and the main seal lip. The sealing ring root part is located at the lower part of the seal lip. The end of the main seal lip warps upwards. One side of the main seal lip close to the end is provided with an arc contact surface. The secondary seal lip is arranged under the main seal lip. A seal direction of the secondary seal lip is opposite to that of the main seal lip. The end of the secondary seal lip is provided with an arc contact surface. The pneumatic sealing ring realizes bidirectional seal and keeps grease on a working surface via cooperating with other components. The pneumatic sealing ring can be widely applied in the seal of a piston and a piston rod.
Description
Technical field
The utility model relates to a kind of seal ring, the odd-shaped cross section Pneumatic sealing ring of particularly using about a kind of piston and piston rod reciprocating movement sealing.
Background technique
At present, most of Pneumatic sealing ring adopts lubricating grease to be lubricated, and lubricating grease is smeared in advance in the time of assembling.In the course of the work, the sealed circle of lubricating grease on sealed working face (cylinder inner wall, piston rod outer wall) is pushed through two ends, and on sealed working face, lubricating grease can not keep.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of odd-shaped cross section Pneumatic sealing ring, and sealing circle can be realized two way sealed, and other component match to realize lubricating grease is remained on sealed working face.
For achieving the above object, the utility model is taked following technological scheme: a kind of odd-shaped cross section Pneumatic sealing ring, is characterized in that: it comprises injection moulding all-in-one-piece sealing lip, primary seal lip, seal ring root and inferior sealing lip; Between described sealing lip and described primary seal lip, form a groove, described seal ring root is positioned at described sealing lip bottom, and the end of described primary seal lip upwarps; Described primary seal lip one side is close to its tail end and is provided with one for the arc surface of surface of contact, and described time sealing lip is positioned at described primary seal lip below, and described time sealing lip sealing direction is contrary with described primary seal lip; Be provided with at described sealing lip end the arc surface that another is surface of contact.
The end of described seal ring root is tilted to groove is installed.
Described time sealing lip is less than described primary seal lip.
Between the inferior sealing lip of described odd-shaped cross section Pneumatic sealing ring and one-way sealing seal, form the cavity of a prepacked with grease.
The utility model is owing to taking above technological scheme, it has the following advantages: 1, the utility model is made up of injection moulding all-in-one-piece sealing lip, primary seal lip, seal ring root and inferior sealing lip owing to adopting, and inferior sealing lip is positioned at primary seal lip below, the sealing direction of inferior sealing lip is contrary with primary seal lip, and then realizes two way sealed.2, the utility model, because the end of primary seal lip upwarps, does not contact the resistance therefore can reduce to start time with piston-cylinder inwall or piston rod outer wall.3, the utility model is tilted to groove is installed owing to adopting the end of seal ring root, therefore can realize seal ring in the two way sealed that groove one side is installed.4, when the utility model uses on piston or piston rod, odd-shaped cross section Pneumatic sealing ring of the present utility model and common one-way sealing seal are arranged on piston or piston rod outer casing inner wall face in turn, between two seal rings, form a cavity, can prepacked with grease in this cavity, lubricating grease can be remained on sealed working face preferably by this cavity.The utility model can be widely used in the sealing of piston and piston rod.
Accompanying drawing explanation
Fig. 1 is the odd-shaped cross section Pneumatic sealing ring plan view of the utility model in the piston used time;
Fig. 2 is the odd-shaped cross section Pneumatic sealing ring sectional view of the utility model in the piston used time;
Fig. 3 is the odd-shaped cross section Pneumatic sealing ring plan view of the utility model in the piston rod used time;
Fig. 4 is the odd-shaped cross section Pneumatic sealing ring sectional view of the utility model in the piston rod used time;
Fig. 5 is that the utility model uses ssembly drawing at the odd-shaped cross section Pneumatic sealing ring of piston used time;
Fig. 6 is that the utility model uses ssembly drawing at the odd-shaped cross section Pneumatic sealing ring of piston rod used time.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1 to 4, the utility model provides a kind of odd-shaped cross section Pneumatic sealing ring for piston, piston rod, and it comprises injection moulding all-in-one-piece sealing lip 1, primary seal lip 2, seal ring root 3 and inferior sealing lip 4.Between sealing lip 1 and primary seal lip 2, form a groove, for fixing odd-shaped cross section Pneumatic sealing ring.Seal ring root 3 is positioned at sealing lip 1 bottom, and the end 5 of seal ring root 3 is tilted to the installation groove of piston or piston rod, can realize the two way sealed that groove one side is installed.The end 6 of primary seal lip 2 upwarps, and does not contact the resistance can reduce to start time with piston-cylinder inwall or piston rod outer wall; Primary seal lip 2 one sides are close to its end 6 places and are provided with an arc surface 7, and this arc surface 7, can seal compression air for contacting with piston-cylinder inwall or piston rod outer wall.Inferior sealing lip 4 is positioned at primary seal lip 2 belows, and inferior sealing lip 4 is with respect to primary seal lip 2, and inferior sealing lip 4 is much smaller than primary seal lip 2, and sealing direction is contrary with primary seal lip 2, realizes two way sealed; Be provided with another arc surface 8 at inferior sealing lip 4 ends, for contacting with piston-cylinder inwall or piston rod outer wall, when use, combine and can realize the sealing to lubricating grease with other existing parts by inferior sealing lip 4.
In above-described embodiment, as shown in Figure 5, in the time that odd-shaped cross section Pneumatic sealing ring of the present utility model uses on piston, odd-shaped cross section Pneumatic sealing ring 9 and piston 10, piston-cylinder 11, common one-way sealing seal 12 are used in combination.Piston 10 weeks upwards, with piston-cylinder 11 surface of contact on be provided with in turn odd-shaped cross section Pneumatic sealing ring 9 and common one-way sealing seal 12, and between the inferior sealing lip 4 of odd-shaped cross section Pneumatic sealing ring 9 and common one-way sealing seal 12, form a cavity 13, can prepacked with grease in cavity 13.In the working procedure of piston-cylinder 11, lubricating grease is closed in cavity 13, can be with piston 10 to-and-fro motion, and can make lubricating grease remain on sealed working face (being piston-cylinder 11 inboard wall of cylinder block) upper, keep at any time good lubricating status.
In above-described embodiment, as shown in Figure 6, in the time that odd-shaped cross section Pneumatic sealing ring of the present utility model uses on piston rod, odd-shaped cross section Pneumatic sealing ring 9 and shell 14, piston rod 15, common one-way sealing seal 12 are used in combination.On shell 14 inwalls, with piston rod 15 surface of contact on be provided with in turn odd-shaped cross section Pneumatic sealing ring 9 and common one-way sealing seal 12, between the inferior sealing lip 4 of odd-shaped cross section Pneumatic sealing ring 9 and common one-way sealing seal 12, form cavity 13, can prepacked with grease in cavity 13.In the working procedure of piston rod 15, lubricating grease is closed in cavity 13, can make lubricating grease remain on sealed working face (piston rod 15 outer walls) upper, keeps at any time good lubricating status.
The various embodiments described above are only for illustrating the utility model; the structure of each parts and Placement all can change to some extent; on the basis of technical solutions of the utility model; all improvement and equivalents that according to the utility model principle, the connection to indivedual parts and structure are carried out, all should not get rid of outside protection domain of the present utility model.
Claims (5)
1. an odd-shaped cross section Pneumatic sealing ring, is characterized in that: it comprises injection moulding all-in-one-piece sealing lip, primary seal lip, seal ring root and inferior sealing lip; Between described sealing lip and described primary seal lip, form a groove, described seal ring root is positioned at described sealing lip bottom, and the end of described primary seal lip upwarps; Described primary seal lip one side is close to its tail end and is provided with one for the arc surface of surface of contact, and described time sealing lip is positioned at described primary seal lip below, and described time sealing lip sealing direction is contrary with described primary seal lip; Be provided with at described sealing lip end the arc surface that another is surface of contact.
2. odd-shaped cross section Pneumatic sealing ring as claimed in claim 1, is characterized in that: the end of described seal ring root is tilted to groove is installed.
3. odd-shaped cross section Pneumatic sealing ring as claimed in claim 1, is characterized in that: described time sealing lip is less than described primary seal lip.
4. odd-shaped cross section Pneumatic sealing ring as claimed in claim 2, is characterized in that: described time sealing lip is less than described primary seal lip.
5. odd-shaped cross section Pneumatic sealing ring as claimed in claim 1 or 2 or 3 or 4, is characterized in that: the cavity that forms a prepacked with grease between the inferior sealing lip of described odd-shaped cross section Pneumatic sealing ring and one-way sealing seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821861.7U CN203627798U (en) | 2013-12-12 | 2013-12-12 | Pneumatic sealing ring with special-shaped cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821861.7U CN203627798U (en) | 2013-12-12 | 2013-12-12 | Pneumatic sealing ring with special-shaped cross section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627798U true CN203627798U (en) | 2014-06-04 |
Family
ID=50814279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320821861.7U Withdrawn - After Issue CN203627798U (en) | 2013-12-12 | 2013-12-12 | Pneumatic sealing ring with special-shaped cross section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671930A (en) * | 2013-12-12 | 2014-03-26 | 南车二七车辆有限公司 | Pneumatic seal ring with irregularly-shaped cross section |
-
2013
- 2013-12-12 CN CN201320821861.7U patent/CN203627798U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671930A (en) * | 2013-12-12 | 2014-03-26 | 南车二七车辆有限公司 | Pneumatic seal ring with irregularly-shaped cross section |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |