CN102628524A - Valve stem sealing device - Google Patents
Valve stem sealing device Download PDFInfo
- Publication number
- CN102628524A CN102628524A CN 201210102691 CN201210102691A CN102628524A CN 102628524 A CN102628524 A CN 102628524A CN 201210102691 CN201210102691 CN 201210102691 CN 201210102691 A CN201210102691 A CN 201210102691A CN 102628524 A CN102628524 A CN 102628524A
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- CN
- China
- Prior art keywords
- valve
- valve body
- sealing
- valve stem
- valve rod
- 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.)
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Abstract
The invention discloses a valve stem sealing device. The valve stem sealing device comprises a valve body, a valve stem, a sealing ring and a sealing cover, wherein the valve stem is arranged in the valve body; the sealing ring is arranged between the valve body and the valve stem; the sealing cover is arranged on the outer side of the valve body and is contacted with the sealing ring; the sealing ring is an X-shaped sealing ring; the sealing cover is connected with the valve body through a fastener; and the fastener is a compression screw. According to the valve stem sealing device, the deformation of the X-shaped sealing ring is great, so that the X-shaped sealing ring is difficult to damage even if the assembly interference of the sealing cover is large, and the sealing performance is difficult to fail; and when the valve is opened or closed, a medium makes the valve stem tilt, and the inner lip and the outer lip of the X-shaped sealing ring are still appressed to the valve stem and the valve body, so that the sealing performance is reliable, and leakage is difficult to cause.
Description
Technical field
The present invention relates to a kind of seal arrangement, particularly be a kind of valve rod sealing device.
Background technique
Valve is in fluid system, is used for controlling direction, the pressure of fluid, the device of flow.Valve is the device that pipe arrangement and the interior medium (liquid, gas, powder) of equipment is flowed or stop and controlling its flow; It is controlling component in the pipeline fluid delivery system; It is to be used for changing path section and media flow direction, has water conservancy diversion, by functions such as, throttling, non-return, shunting or overflow releases.The valve rod sealing device of general valve; Shown in accompanying drawing 1; Comprise valve body 1, valve rod 2, O RunddichtringO 3 and sealing gland 4, be provided with valve rod 2 in the said valve body 1,2 of said valve body 1 and valve rods are provided with O RunddichtringO 3; Be provided with sealing gland 4 outside the said valve body 1, said sealing gland 4 contacts with O RunddichtringO 3.Such valve rod sealing device at first is inserted in O RunddichtringO 3 when mounted, then sealing gland 4 is being installed; Be used to compress O RunddichtringO 3, because the amount of deformation of O RunddichtringO 3 is less, when the assembling magnitude of interference of sealing gland 4 is big; Damage O RunddichtringO 3 easily by pressure, make sealability lose efficacy; And certain interval is arranged between valve rod and the valve body, and during valve switch, medium can make valve rod tilt, the sealability of O RunddichtringO 3 can not get guaranteeing at this moment, causes leaking.
Summary of the invention
Technical problem to above-mentioned existence the objective of the invention is: proposed the reliable and difficult valve rod sealing device that lost efficacy of a kind of sealability.
Technical solution of the present invention is achieved in that a kind of valve rod sealing device; Comprise valve body, valve rod, seal ring and sealing gland; Be provided with valve rod in the said valve body, be provided with seal ring between said valve body and valve rod, said valve body is provided with sealing gland outward; Said sealing gland contacts with seal ring, and said seal ring is the X RunddichtringO.
Preferably, said sealing gland links to each other with valve body through fastening piece.
Preferably, said fastening piece is a housing screw.
Because the utilization of technique scheme, the present invention compared with prior art has advantage:
Valve rod sealing device of the present invention, because seal ring is the X RunddichtringO, the amount of deformation of X RunddichtringO is big, even when the assembling magnitude of interference of sealing gland is big, also not fragile X RunddichtringO, sealability is difficult for losing efficacy; When valve switch, after medium made that valve rod tilts, lip, outer lip still can be close to valve rod and valve body in the X RunddichtringO, and sealability is reliable, is difficult for causing leakage.
Description of drawings
Below in conjunction with accompanying drawing technological scheme of the present invention is described further:
Accompanying drawing 1 is the structural representation of the valve rod sealing device of existing technology;
Accompanying drawing 2 is the structural representation of valve rod sealing device of the present invention;
Wherein: 1, valve body; 2, valve rod; 3, O RunddichtringO; 4, sealing gland; 5, housing screw; 6, X RunddichtringO.
Embodiment
Below in conjunction with accompanying drawing the present invention is described.
Of the present invention a kind of valve rod sealing device shown in accompanying drawing 2; Comprise valve body 1, valve rod 2, seal ring and sealing gland 4; Be provided with valve rod 2 in the said valve body 1; 2 of said valve body 1 and valve rods are provided with seal ring, the said valve body 1 outer sealing gland 4 that is provided with, and said sealing presses 4 lids to link to each other with valve body 1 through housing screw 5; Said sealing gland 4 contacts with seal ring, and said seal ring is an X RunddichtringO 6.
During installation; At first be inserted in X RunddichtringO 6, through housing screw 5 sealing gland 4 be connected with valve body 1 then, be used to compress X RunddichtringO 6; Because the amount of deformation of X RunddichtringO 6 is big; When even the assembling magnitude of interference of sealing gland 4 is big, also not fragile X RunddichtringO 6, sealability is difficult for losing efficacy; During valve switch, medium makes valve rod 2 tilt, and lip, outer lip still can be close to valve rod 2 and valve body 1 in the X RunddichtringO 6, and sealability is reliable, is difficult for causing leakage.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. valve rod sealing device; Comprise valve body, valve rod, seal ring and sealing gland; Be provided with valve rod in the said valve body, be provided with seal ring between said valve body and valve rod, said valve body is provided with sealing gland outward; Said sealing gland contacts with seal ring, it is characterized in that: said seal ring is the X RunddichtringO.
2. valve rod sealing device according to claim 1 is characterized in that: said sealing gland links to each other with valve body through fastening piece.
3. valve rod sealing device according to claim 2 is characterized in that: said fastening piece is a housing screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210102691 CN102628524A (en) | 2012-04-10 | 2012-04-10 | Valve stem sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210102691 CN102628524A (en) | 2012-04-10 | 2012-04-10 | Valve stem sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102628524A true CN102628524A (en) | 2012-08-08 |
Family
ID=46586848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210102691 Pending CN102628524A (en) | 2012-04-10 | 2012-04-10 | Valve stem sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102628524A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805407A (en) * | 2016-05-18 | 2016-07-27 | 德施普科技发展温州有限公司 | Valve rod sealing structure |
| CN106895172A (en) * | 2015-12-18 | 2017-06-27 | 纽威阀门有限公司 | New pressure transmitting type ball valve |
-
2012
- 2012-04-10 CN CN 201210102691 patent/CN102628524A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895172A (en) * | 2015-12-18 | 2017-06-27 | 纽威阀门有限公司 | New pressure transmitting type ball valve |
| CN105805407A (en) * | 2016-05-18 | 2016-07-27 | 德施普科技发展温州有限公司 | Valve rod sealing structure |
| CN105805407B (en) * | 2016-05-18 | 2018-05-22 | 林淑录 | A kind of valve rod leak-proof structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120808 |