CN201818785U - Sealing check ring - Google Patents
Sealing check ring Download PDFInfo
- Publication number
- CN201818785U CN201818785U CN2010205745639U CN201020574563U CN201818785U CN 201818785 U CN201818785 U CN 201818785U CN 2010205745639 U CN2010205745639 U CN 2010205745639U CN 201020574563 U CN201020574563 U CN 201020574563U CN 201818785 U CN201818785 U CN 201818785U
- Authority
- CN
- China
- Prior art keywords
- sealing
- ring
- rubber ring
- sealing shield
- arc
- 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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Abstract
The utility model provides a sealing check ring which can improve the sealing property and prolong the service life of a sealing element, and is matched with an O-shaped rubber ring when in use; the sealing check ring is characterized in that one side surface of the sealing check ring is provided with an arc-shaped groove; and the diameter of a circle of the arc shape of the arc-shaped groove, intercepted by the cross section, is larger than or equal to that of the cross section of the O-shaped rubber ring. One side of the sealing check ring is provided with the arc-shaped groove, so that good protection is realized for the O-shaped rubber ring, the damage on the O-shaped rubber ring caused by the fluid pressure is greatly reduced, and the premature failure of sealing is greatly reduced or even eliminated. Furthermore, after being matched with the O-shaped rubber ring, the sealing performance of the sealing check ring is also enhanced.
Description
Technical field
The utility model relates to a kind of Sealing shield ring, in particular, relates in particular to a kind of Sealing shield ring that can improve sealability and prolong seal durability.
Background technique
The Sealing shield ring that uses in the existing hydraulic system, general and O shape rubber ring is used in combination, and is used for improving the sealing of device internal liquid or gas.The cross section of existing Sealing shield ring is generally rectangular shape; be installed in O shape rubber ring back to hydrodynamic pressure one side; though the Sealing shield ring of this structure can improve the sealability of device to a certain extent; but still be subjected to certain pressure limit; in use cause O shape rubber ring to be extruded easily and breakage; and then feasible sealing early failue, cause device to shut down the dismounting maintenance, bring certain economic loss.
Summary of the invention
The utility model provides a kind of Sealing shield ring that can improve sealability and prolong seal durability in order to overcome the shortcoming of above-mentioned technical problem.
Sealing shield ring of the present utility model, it matches with O shape rubber ring in the process of using, its specialization is: a side of described Sealing shield ring is provided with arc groove, and arc groove is by arc place diameter of a circle that cross section the intercepted diameter more than or equal to O shape rubber ring cross section.Exactly, arc groove crossed Sealing shield ring axis the arc place diameter of a circle that the plane intercepted more than or equal to the diameter of O shape rubber ring cross section.In the process of using,, realize the seal action of convection cell obturator by the cooperation of Sealing shield ring and O shape rubber ring; Sealing shield ring mainly plays the effect of supporting and protecting O shape rubber ring.On Sealing shield ring, be provided with can with the close-fitting arc groove of O shape rubber ring after, just realized that Sealing shield ring contacts with the maximum area of O shape rubber ring, effectively avoided O shape rubber ring because the premature damage that hydrodynamic pressure caused.
Sealing shield ring of the present utility model, described Sealing shield ring are elastic material.Only guaranteed Sealing shield ring is an elastic material, could guarantee that it cooperates the back and can produce certain deformation quantity under the effect of hydrodynamic pressure with O shape rubber ring, and make sealing effect more.
Sealing shield ring of the present utility model, described arc groove is equated with the radial thickness of Sealing shield ring by the pairing chord length of the arc that cross section intercepted.Such structure can make the two ends of arc groove all form angular shape, can not only protect O shape rubber ring preferably, and can also strengthen seal action.
The beneficial effects of the utility model are: a side of Sealing shield ring of the present utility model is provided with arc groove, realized good protection to O shape rubber ring, reduced greatly because the O shape rubber ring that hydrodynamic pressure caused damages, reduced significantly even eliminate to seal premature failure; Sealing shield ring of the present utility model after O shape rubber ring cooperates, has also strengthened sealability.
Description of drawings
Fig. 1 is the cross-sectional view of Sealing shield ring of the present utility model;
Fig. 2 is an A-A partial enlarged drawing of the present utility model;
Fig. 3 is the rigging position figure of Sealing shield ring of the present utility model in seal arrangement;
Among the figure: 1 Sealing shield ring, arcwall on 11,12 arc lower walls, 2 O shape rubber rings, 3 arc grooves.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
As depicted in figs. 1 and 2, provided the structural representation of Sealing shield ring of the present utility model, Sealing shield ring 1 is made for annular shape and by elastic material, and a side of Sealing shield ring 1 is provided with arc groove 3.Sealing shield ring 1 is used with O shape rubber ring 2 in the process of using, arc groove is by arc place diameter of a circle that cross section the intercepted diameter more than or equal to O shape rubber ring cross section, that is to say, when the arc groove on the Sealing shield ring 13 matches with O shape rubber ring, when certain deformation took place O shape rubber ring, arc groove 3 contacted just fully with O shape rubber ring.In order to realize the better protection of O shape rubber ring and to realize good sealing effect; arc groove 3 is equated with the radial thickness of Sealing shield ring 1 by the pairing chord length of the arc that cross section intercepted; the last arcwall 11 and the arc lower wall 12 that is to say arc groove 3 both sides are angular shape, and this structure is more useful to be protected O shape rubber ring.
Fig. 3 has provided the rigging position figure of Sealing shield ring of the present utility model in seal arrangement, when fluid is exerted pressure by pressure direction shown in Figure 3, O shape rubber ring is pressed to Sealing shield ring 1 under the effect of hydrodynamic pressure, pressure is big more, the last arcwall 11 of Sealing shield ring and arc lower wall 12 are under the squeezing action of O shape rubber ring 2, be close to more to the seal groove upper and lower cavity, preventing that O shape rubber ring 2 from clamp-oning burst to decrease, effectively prevented O shape rubber ring 2 to damage the sealability and the working life of also improving sealed member simultaneously in early days.
Claims (3)
1. Sealing shield ring, it matches with O shape rubber ring (2) in the process of using, it is characterized in that: a side of described Sealing shield ring (1) is provided with arc groove (3), and arc groove (3) is by arc place diameter of a circle that cross section the intercepted diameter more than or equal to O shape rubber ring (2) cross section.
2. Sealing shield ring according to claim 1 is characterized in that: described Sealing shield ring (1) is an elastic material.
3. Sealing shield ring according to claim 1 and 2 is characterized in that: described arc groove (3) is equated by the radial thickness of the pairing chord length of the arc that cross section intercepted with Sealing shield ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205745639U CN201818785U (en) | 2010-10-25 | 2010-10-25 | Sealing check ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205745639U CN201818785U (en) | 2010-10-25 | 2010-10-25 | Sealing check ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818785U true CN201818785U (en) | 2011-05-04 |
Family
ID=43916737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205745639U Expired - Fee Related CN201818785U (en) | 2010-10-25 | 2010-10-25 | Sealing check ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296355A (en) * | 2018-11-30 | 2019-02-01 | 成都托克密封件有限责任公司 | A kind of high temperature and pressure downhole tool rapid simulated test well |
| CN109356545A (en) * | 2018-10-29 | 2019-02-19 | 中石化石油工程技术服务有限公司 | A kind of downhole tool sealing structure |
-
2010
- 2010-10-25 CN CN2010205745639U patent/CN201818785U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356545A (en) * | 2018-10-29 | 2019-02-19 | 中石化石油工程技术服务有限公司 | A kind of downhole tool sealing structure |
| CN109296355A (en) * | 2018-11-30 | 2019-02-01 | 成都托克密封件有限责任公司 | A kind of high temperature and pressure downhole tool rapid simulated test well |
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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: 20110504 Termination date: 20171025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |