CN204226641U - For the seal ring of floating high-performance valve seat - Google Patents
For the seal ring of floating high-performance valve seat Download PDFInfo
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- CN204226641U CN204226641U CN201420549519.0U CN201420549519U CN204226641U CN 204226641 U CN204226641 U CN 204226641U CN 201420549519 U CN201420549519 U CN 201420549519U CN 204226641 U CN204226641 U CN 204226641U
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- seal ring
- slope
- vertical
- valve seat
- floating high
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Abstract
The utility model relates to a kind of seal ring for floating high-performance valve seat, comprise O-ring seal body, described this outside of seal ring evenly offers some vertical slots, each vertical slot parallels, the upper and lower both ends of the surface of seal ring body are run through at described vertical slot two ends respectively, described seal ring body inner side surface comprises the first slope, the second slope and the vertical surface that set gradually, and the angle of the first slope and vertical surface is greater than the angle of the second slope and vertical surface.This seal ring being used for floating high-performance valve seat is owing to offering vertical slot, for seal ring reserved certain deformation space in extrusion process, thus prevent it from rupturing, meanwhile, original inner side surface is contacted with face between spheroid and changes two-point contact into, reduce area of contact, reduce moment of torsion, elastic space is given at middle part, ensures that seal ring spring energy storage ability realizes memory characteristic, thus substantially increases sealability.
Description
Technical field
The utility model relates to ball valve field, especially a kind of seal ring for floating high-performance valve seat.
Background technique
The inner side surface of existing ball seat seal ring is generally arc surface, the radian of this arc surface is corresponding with the radian of spheroid, namely seal ring inner side surface with between spheroid for face contacts (as shown in Figure 1), the and for example ball valve sealing ring of Authorization Notice No. CN2504442Y and the left seal ring of Authorization Notice No. CN201851700U and right seal ring.
But such seal ring after a longer time of use, easily weares and teares, arc surface tightly cannot be fitted spheroid, thus sealability is declined.In addition, such seal ring is generally adopt PTFE to obtain, and material is comparatively hard, easily extrudes seal ring in ball valve using process, easily makes seal ring deform, even rupture after using the long period.
Model utility content
The technical problems to be solved in the utility model is: in order to provide a kind of seal ring for floating high-performance valve seat of not yielding, good sealing effect, long service life.
The utility model solves the technological scheme that its technical problem adopts: a kind of seal ring for floating high-performance valve seat, comprise O-ring seal body, described this outside of seal ring evenly offers some vertical slots, each vertical slot parallels, the upper and lower both ends of the surface of seal ring body are run through at described vertical slot two ends respectively, described seal ring body inner side surface comprises the first slope set gradually, second slope and vertical surface, described first slope top and seal ring body upper-end surface flush, first slope bottom is connected with the second slope top, second slope bottom is connected with vertical surface top, the angle of the first slope and vertical surface is greater than the angle of the second slope and vertical surface.
In the utility model one preferred embodiment, described vertical slot is curve bath.
In the utility model one preferred embodiment, described first slope evenly offers some notches.
In the utility model one preferred embodiment, between described first slope and the second slope, be provided with arc-shaped transitional surface.
The beneficial effects of the utility model are: the seal ring for floating high-performance valve seat of the present utility model is owing to offering vertical slot, for seal ring reserved certain deformation space in extrusion process, thus prevent it from rupturing, meanwhile, original inner side surface is contacted with face between spheroid and changes two-point contact into, reduce area of contact, reduce moment of torsion, elastic space is given at middle part, ensures that seal ring spring energy storage ability realizes memory characteristic, thus substantially increases sealability.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of seal ring in prior art;
Fig. 2 is the structural representation of the seal ring for floating high-performance valve seat of the present utility model;
Fig. 3 is the sectional view of the seal ring for floating high-performance valve seat of the present utility model;
Fig. 4 is the structural representation of another embodiment of the seal ring for floating high-performance valve seat of the present utility model;
Structural representation when Fig. 5 is the use of the seal ring for floating high-performance valve seat of the present utility model;
In figure: 1. seal ring body, 2. vertical slot, 3. the first slope, 4. the second slope, 5. vertical surface, 6. notch, 7. spheroid.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As Fig. 2, shown in Fig. 3, a kind of seal ring for floating high-performance valve seat, comprise O-ring seal body 1, described seal ring body 1 outer side surface evenly offers some vertical slots 2, each vertical slot 2 parallels, seal ring body about 1 both ends of the surface are run through at described vertical slot 2 two ends respectively, described seal ring body 1 inner side surface comprises the first slope 3 set gradually, second slope 4 and vertical surface 5, described first slope 3 top and seal ring body 1 upper-end surface flush, first slope 3 bottom is connected with the second slope 4 top, second slope 4 bottom is connected with vertical surface 5 top, first slope 3 and the angle (acute angle) of vertical surface 5 are greater than the angle (acute angle) of the second slope 4 and vertical surface 5, namely the gradient of the first slope 3 is greater than the gradient of the second slope 4.
As preferably, described vertical slot 2 is curve bath, this arc vertical slot 2 be mainly used in realizing to seal ring self-protection in extrusion process, make it have certain deformation space, prevent it from causing cracking due to extruding.
As shown in Figure 4, described first slope 3 evenly offers some notches 6, these notches 6 make the first slope 3 become the arcuate segment of some deciles, notch 6 makes to form gap between each arcuate segment, be that certain space is reserved in the distortion of the first slope 3, can prevent the first slope 3 from ftractureing due to extruding.
In order to better ensure sealing effect, between described first slope 3 and the second slope 4, be provided with arc-shaped transitional surface.
As shown in Figure 5, when sealing circle is mounted on spheroid 7, the bottom of the first slope 3 of seal ring, the bottom of the second slope 4 respectively with spheroid 7 outer wall against, thus realize two-point contact, reserved elastic space between 2, seal ring be extruded deform time, be preferentially pressed against in elastic space, now 2 still with spheroid 7 outer wall against, thus ensure that sealability.
Compared with prior art, seal ring for floating high-performance valve seat of the present utility model is owing to offering vertical slot 2, for seal ring reserved certain deformation space in extrusion process, thus prevent it from rupturing, simultaneously, face between original inner side surface with spheroid 7 is contacted and changes two-point contact into, reduce area of contact, reduce moment of torsion, elastic space is given at middle part, ensure that seal ring spring energy storage ability realizes memory characteristic, thus substantially increase sealability.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. the seal ring for floating high-performance valve seat, comprise O-ring seal body, it is characterized in that: described this outside of seal ring evenly offers some vertical slots, each vertical slot parallels, the upper and lower both ends of the surface of seal ring body are run through at described vertical slot two ends respectively, described seal ring body inner side surface comprises the first slope set gradually, second slope and vertical surface, described first slope top and seal ring body upper-end surface flush, first slope bottom is connected with the second slope top, second slope bottom is connected with vertical surface top, the angle of the first slope and vertical surface is greater than the angle of the second slope and vertical surface.
2., as claimed in claim 1 for the seal ring of floating high-performance valve seat, it is characterized in that: described vertical slot is curve bath.
3., as claimed in claim 1 for the seal ring of floating high-performance valve seat, it is characterized in that: described first slope evenly offers some notches.
4., as claimed in claim 1 for the seal ring of floating high-performance valve seat, it is characterized in that: between described first slope and the second slope, be provided with arc-shaped transitional surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420549519.0U CN204226641U (en) | 2014-09-24 | 2014-09-24 | For the seal ring of floating high-performance valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420549519.0U CN204226641U (en) | 2014-09-24 | 2014-09-24 | For the seal ring of floating high-performance valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226641U true CN204226641U (en) | 2015-03-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420549519.0U Active CN204226641U (en) | 2014-09-24 | 2014-09-24 | For the seal ring of floating high-performance valve seat |
Country Status (1)
| Country | Link |
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| CN (1) | CN204226641U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485367A (en) * | 2016-02-01 | 2016-04-13 | 无锡智能自控工程股份有限公司 | Memory alloy seal valve base structure of fixed ball valve |
| CN107387759A (en) * | 2017-07-25 | 2017-11-24 | 盐城美希密封件有限公司 | A kind of Flat seal |
| CN109458467A (en) * | 2018-10-09 | 2019-03-12 | 电建阀门有限公司 | A kind of coal changes gas ball-valve dedicated |
-
2014
- 2014-09-24 CN CN201420549519.0U patent/CN204226641U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485367A (en) * | 2016-02-01 | 2016-04-13 | 无锡智能自控工程股份有限公司 | Memory alloy seal valve base structure of fixed ball valve |
| CN107387759A (en) * | 2017-07-25 | 2017-11-24 | 盐城美希密封件有限公司 | A kind of Flat seal |
| CN107387759B (en) * | 2017-07-25 | 2024-02-13 | 东营市广利机电设备有限公司 | Flat sealing element |
| CN109458467A (en) * | 2018-10-09 | 2019-03-12 | 电建阀门有限公司 | A kind of coal changes gas ball-valve dedicated |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 213000 Jiangsu city of Changzhou province Chishui new North Road No. 2 (Hanjiang Road intersection and leaf Tang) Patentee after: JIANGSU CHENGGONG VALVE TECHNOLOGY CO., LTD. Address before: 213000 No. 99-1, Qingyang Road, Xinbei District, Jiangsu, Changzhou Patentee before: JIANGSU CHENGGONG VALVE TECHNOLOGY CO., LTD. |