CN203239927U - Sealing ring - Google Patents
Sealing ring Download PDFInfo
- Publication number
- CN203239927U CN203239927U CN 201320125223 CN201320125223U CN203239927U CN 203239927 U CN203239927 U CN 203239927U CN 201320125223 CN201320125223 CN 201320125223 CN 201320125223 U CN201320125223 U CN 201320125223U CN 203239927 U CN203239927 U CN 203239927U
- Authority
- CN
- China
- Prior art keywords
- annular
- sealing ring
- sealing
- hole
- base body
- 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 relates to a sealing ring which can be used for sealing the matching surface of a shaft and a hole. The sealing ring comprises an annular base body. An annular inner concave part is arranged in the middle of the surface of an inner ring of the base body, an upper annular protrusion and a lower annular protrusion are formed on the surface of the inner ring of the base body, and an annular outer clamping slot is formed in the middle of the surface of the outer side of the base body. The sealing ring has the advantages that due to the fact that the two annular protrusions are formed on the surface of the inner ring of the sealing ring, when the sealing ring is used for matching the shaft with the hole, and the sealing ring and the outer wall of the shaft can form two annular lines for contact sealing, so that the sealing effect is improved; due to the fact that the annular outer clamping slot is formed in the surface of the outer side of the base body, when the sealing ring is used for a thin-wall hole, the inner circumference of the thin-wall hole can be clamped in the outer clamping slot, therefore, locating and sealing are achieved, and the application range of the sealing ring is widened.
Description
Technical field
The utility model relates to a kind of seal ring that can be used for axle, hole mating face seal.
Background technique
Existing have the axle of seal request, hole to cooperate, and usually adopting the cross section is circular O RunddichtringO.It is the line contact of an annular that the inner ring of common O-ring seals contacts with the sealing of axle outer wall, and sealing effect is relatively poor, easily leaks.In addition, when the hole that cooperates with axle is hole on the thin-walled, because the axial length in hole much smaller than the axial length of seal ring, therefore can't use common O RunddichtringO to seal.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of to the good sealing effect of axle outer wall, seal ring applied widely.
Seal ring of the present utility model includes the matrix of an annular, is provided with the sunken inside of annular at the inner peripheral surface middle part of matrix, makes the inner peripheral surface of matrix form upper and lower two annular projections.
The outer surface middle part of described matrix is provided with the exterior bayonet slot of annular.
Advantage applies of the present utility model exists: 1, because the seal ring inner peripheral surface forms two annular projections, when being used for shaft hole matching, can form twice annular line contact sealing with the axle outer wall, improve sealing effect; 2, owing at the matrix outer surface annular exterior bayonet slot being set, when being used for thin-wall hole, the inner circumference of thin-wall hole can be stuck in the exterior bayonet slot, realize location and sealing, enlarge its application area.
Description of drawings
Fig. 1 is the cross section structure schematic diagram of the practical example of the utility model;
Fig. 2 is the mounting structure schematic diagram of the utility model embodiment when being used for plain shaft, hole fitted seal;
Fig. 3 is the mounting structure schematic diagram of the utility model embodiment when being used for axle and thin-wall hole fitted seal.
Embodiment
As shown in Figure 1, the sealing circle includes the matrix 1 of an annular, is provided with the sunken inside 2 of annular at the inner peripheral surface middle part of matrix, makes the inner peripheral surface of matrix form upper and lower two annular projections 3.The outer surface middle part of matrix is provided with the exterior bayonet slot 4 of annular.
Seal ring of the present utility model can be used for the sealing (such as Fig. 2) of common axle, hole cooperation.Also can be used for the sealing (such as Fig. 3) of thin-wall hole and axle, this moment, the inner circumference with thin-wall hole was stuck in the exterior bayonet slot, realized location and sealing.
Claims (2)
1. seal ring includes the matrix of an annular, it is characterized in that: be provided with the sunken inside of annular at the inner peripheral surface middle part of matrix, make the inner peripheral surface of matrix form upper and lower two annular projections.
2. seal ring according to claim 1 is characterized in that: the exterior bayonet slot that is provided with annular in the middle part of the outer surface of described matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125223 CN203239927U (en) | 2013-03-19 | 2013-03-19 | Sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125223 CN203239927U (en) | 2013-03-19 | 2013-03-19 | Sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239927U true CN203239927U (en) | 2013-10-16 |
Family
ID=49317225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320125223 Expired - Fee Related CN203239927U (en) | 2013-03-19 | 2013-03-19 | Sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567873A (en) * | 2016-11-14 | 2017-04-19 | 江门市格雷亚特流体密封技术有限公司 | PGW type piston sealing ring |
-
2013
- 2013-03-19 CN CN 201320125223 patent/CN203239927U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567873A (en) * | 2016-11-14 | 2017-04-19 | 江门市格雷亚特流体密封技术有限公司 | PGW type piston sealing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20210319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |