CN203286129U - Valve seat seal long in service life and good in sealing effect - Google Patents
Valve seat seal long in service life and good in sealing effect Download PDFInfo
- Publication number
- CN203286129U CN203286129U CN2013202589492U CN201320258949U CN203286129U CN 203286129 U CN203286129 U CN 203286129U CN 2013202589492 U CN2013202589492 U CN 2013202589492U CN 201320258949 U CN201320258949 U CN 201320258949U CN 203286129 U CN203286129 U CN 203286129U
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- sealing
- groove
- service life
- valve seat
- seal
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Abstract
The utility model relates to a valve seat seal long in service life and good in sealing effect. The valve seat seal comprises an annular seal body, a pressure bearing end face, bearing pressure, of the seal body is provided with a groove, and the two lateral faces, vertical to the pressure bearing end face, of the seal body are respectively provided with a seal lip, wherein the seal lips are arranged on the two sides of the groove. A spring mechanism making the sealing lips stretch open is arranged in the groove. A gasket is arranged in the groove and comprises two ends, wherein one end of the gasket is connected with the spring mechanism in an abutted mode, and the other end of the gasket is connected with the valve seat in an abutted mode. According to the valve seat seal, the spring mechanism is used for providing power for stretching the sealing lips open, due to the fact that spring is high in structural strength and has high compression limitation, a sealing ring can obtain the high pressure-resistant capacity, the sealing performance is improved and service life is prolonged. The gasket arranged in the groove can effectively prevent impurities and silt from entering the sealing ring, therefore, the sealing ring is prevented from rapidly losing effect, and the service life of the sealing ring is prolonged. The valve seat seal can be used for sealing the valve seat.
Description
Technical field
The utility model relates to technical field of sealing technology, particularly a kind of long service life and have the valve base sealing of excellent sealing effect.
Background technique
At present, the Sealing of valve valve seat location, major part adopts O shape rubber ring or rectangular loop, mainly contains the problem of the following aspects:
1) for the low pressure situation, because causing O shape rubber ring or rectangular loop amount of deformation, underpressure caused not seepage, the Sealing sealing effect is bad; 2) under high-pressure situations, O shape rubber ring or rectangular loop gross distortion, likely surpass its compression limit and cause damaging, and makes sealing effect not reach expection, and affected the life-span of seal ring; 3) in the face of the operating mode of the impurity such as silt is arranged, silt can enter in the gap of valve seat and seal ring, and seal ring and then affect its working life weares and teares.
The model utility content
In order to overcome above-mentioned technical problem, the purpose of this utility model is to provide the strong long service life of a kind of good seal, anti-pressure ability and has the valve base sealing of excellent sealing effect.
The technological scheme that the utility model adopts is:
A kind of long service life also has the valve base sealing of excellent sealing effect, the sealed body that comprises annular, described sealed body is met to the pressure-bearing end face of pressure and is provided with groove, described sealed body is respectively equipped with sealing lip on the bi-side perpendicular to the pressure-bearing end face, described sealing lip is positioned at the groove both sides, be provided with the spring mechanism that sealing lip is strutted in described groove, be provided with pad in described groove, described pad comprises an end that is connected to spring mechanism and the other end that is connected to valve seat.
As further improvement in the technical proposal, described groove is " U " type.
As further improvement in the technical proposal, described spring mechanism is " V " type metal elastic spring coil.
As further improvement in the technical proposal, described sealed body is made by polyether-ether-ketone.
As further improvement in the technical proposal, described pad is made by teflon.
As further improvement in the technical proposal, described groove is arranged on the inner peripheral surface of sealed body.
As further improvement in the technical proposal, described groove is arranged on the surface, outer ring of sealed body.
The beneficial effects of the utility model are: the utility model utilizes spring mechanism to provide to strut the power of sealing lip, because the structural strength of spring is higher and have high compression limit, make seal ring obtain stronger anti-pressure ability, thereby improve sealability and increase the service life; The pad that arranges in groove can prevent effectively that impurity, silt from entering in seal ring, has prevented the too fast inefficacy of seal ring, extends its working life.
Description of drawings
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is the utility model the first embodiment's schematic diagram;
Fig. 2 is the utility model the second embodiment's schematic diagram.
Embodiment
As depicted in figs. 1 and 2, a kind of long service life also has the valve base sealing of excellent sealing effect, the sealed body 1 that comprises annular, sealed body 1 is met to the pressure-bearing end face of pressure and is provided with groove 2, sealed body 1 is respectively equipped with sealing lip 3 on the bi-side perpendicular to the pressure-bearing end face, and sealing lip 3 is positioned at groove 2 both sides.Be provided with the spring mechanism 4 that sealing lip 3 is strutted in groove 2, contact with valve seat and realize sealing after sealing lip 3 struts.Be provided with pad 5 in groove 2, pad 5 comprises an end that is connected to spring mechanism 4 and the other end that is connected to valve seat.
Due to the power that utilizes spring mechanism 4 to provide to strut sealing lip 3, and the structural strength of spring is higher and have high compression limit, makes seal ring obtain stronger anti-pressure ability, thereby improves sealability and increase the service life.Can prevent effectively that impurity, silt from entering in seal ring after being provided with pad 5 in groove 2, prevent that seal ring from, because of the too fast inefficacy of wearing and tearing, extending its working life.
Preferably, groove 2 is " U " type, and spring mechanism 4 is " V " type metal elastic spring coil, and the opening end of " V " type metal elastic spring coil is installed in groove 2 uses as fixing.Due to the structure of having utilized spring ring and groove 2, the power that sealing lip 3 struts comes from the stack of spring ring elastic force and pressure, improves the sealability of seal ring.
Preferably, sealed body 1 is made by polyether-ether-ketone (PEEK).Rubber hardness is about 90A(Shao Shi), the hardness of PEEK is about 85D(Shao Shi), this shows that the PEEK hardness ratio is higher, when high pressure came, distortion was few, and anti-pressure ability is good.And well-known, the PEEK friction factor is lower, and contact friction force is smaller, can greatly reduce the frictional force of valve seat, and valve can be opened and closed flexibly and effectively.
In addition, PEEK molecule quite stable uses or long preservation no matter be always in medium, can keep good performance and undergo no deterioration, then and because of its structural stability, effectively media-resistant corrosion, its temperature resistant range is wider, in petroleum industry, is widely used.
Preferably, pad 5 is made by teflon, and the combination of PEEK, metal elastic spring coil and PTFE pad 5 can meet the requirement of 200 ℃ of these regional temperatures of-80 ℃ ~ ﹢ fully.
Fig. 1 is the first embodiment, and groove 2 is arranged on the inner peripheral surface of sealed body 1, and " V " type metal elastic spring coil opening is inside.
Fig. 2 is the first embodiment, and groove 2 is arranged on the surface, outer ring of sealed body 1, " V " type metal elastic spring coil outward opening.
The above be the utility model preferred embodiment, it does not form the restriction to the utility model protection domain.
Claims (7)
1. a long service life and have the valve base sealing of excellent sealing effect, it is characterized in that: the sealed body (1) that comprises annular, described sealed body (1) is met to the pressure-bearing end face of pressure and is provided with groove (2), described sealed body (1) is respectively equipped with sealing lip (3) on the bi-side perpendicular to the pressure-bearing end face, described sealing lip (3) is positioned at groove (2) both sides, be provided with the spring mechanism (4) that sealing lip (3) is strutted in described groove (2), be provided with pad (5) in described groove (2), described pad (5) comprises an end that is connected to spring mechanism (4) and the other end that is connected to valve seat.
2. long service life according to claim 1 and have the valve base sealing of excellent sealing effect, it is characterized in that: described groove (2) is " U " type.
3. long service life according to claim 1 and have the valve base sealing of excellent sealing effect, it is characterized in that: described spring mechanism (4) is " V " type metal elastic spring coil.
4. long service life according to claim 1 and have the valve base sealing of excellent sealing effect, it is characterized in that: described sealed body (1) is made by polyether-ether-ketone.
5. long service life according to claim 1 and have the valve base sealing of excellent sealing effect, it is characterized in that: described pad (5) is made by teflon.
6. the described long service life of any one and have the valve base sealing of excellent sealing effect according to claim 1 to 5, it is characterized in that: described groove (2) is arranged on the inner peripheral surface of sealed body (1).
7. the described long service life of any one and have the valve base sealing of excellent sealing effect according to claim 1 to 5, it is characterized in that: described groove (2) is arranged on the surface, outer ring of sealed body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202589492U CN203286129U (en) | 2013-05-13 | 2013-05-13 | Valve seat seal long in service life and good in sealing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202589492U CN203286129U (en) | 2013-05-13 | 2013-05-13 | Valve seat seal long in service life and good in sealing effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203286129U true CN203286129U (en) | 2013-11-13 |
Family
ID=49542491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202589492U Expired - Lifetime CN203286129U (en) | 2013-05-13 | 2013-05-13 | Valve seat seal long in service life and good in sealing effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203286129U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387765A (en) * | 2017-08-25 | 2017-11-24 | 利辛县宝隆橡塑密封件有限责任公司 | A kind of hydraulic cylinder sealing ring |
| CN108700048A (en) * | 2016-02-15 | 2018-10-23 | 欧帝责任有限公司 | Seal Kit for oscillating column pump |
| EP3417172B1 (en) * | 2016-02-15 | 2021-10-13 | Ode S.r.l. | Solenoid pump |
-
2013
- 2013-05-13 CN CN2013202589492U patent/CN203286129U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700048A (en) * | 2016-02-15 | 2018-10-23 | 欧帝责任有限公司 | Seal Kit for oscillating column pump |
| EP3417172B1 (en) * | 2016-02-15 | 2021-10-13 | Ode S.r.l. | Solenoid pump |
| CN107387765A (en) * | 2017-08-25 | 2017-11-24 | 利辛县宝隆橡塑密封件有限责任公司 | A kind of hydraulic cylinder sealing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |
|
| CX01 | Expiry of patent term |