CN201575147U - U-shaped combined seal ring - Google Patents
U-shaped combined seal ring Download PDFInfo
- Publication number
- CN201575147U CN201575147U CN2009203168954U CN200920316895U CN201575147U CN 201575147 U CN201575147 U CN 201575147U CN 2009203168954 U CN2009203168954 U CN 2009203168954U CN 200920316895 U CN200920316895 U CN 200920316895U CN 201575147 U CN201575147 U CN 201575147U
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- China
- Prior art keywords
- seal ring
- shaped
- combined seal
- utility
- model
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- 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 relates to a U-shaped combined seal ring which comprises an O-shaped seal ring body, and is characterized in that the O-shaped seal ring body is provided with a U-shaped base with an inner lip and an outer lip which form a whole body with the O-shaped seal ring body. The U-shaped combined seal ring has the following benefits: when the pressure of liquid is increased, the two lips of the U-shaped base are respectively unfolded towards two sides, and form a sealing pair with a valve shaft and a valve body, therefore, the seal ring is not damaged due to the increasing of the pressure, thus playing the roles of sealing and protecting, and preventing the leakage.
Description
Technical field
The utility model belongs to seal ring, relates in particular to a kind of " U " type combined seal ring.
Background technique
" O " RunddichtringO that uses in the valve can only guarantee not leak under the working pressure of low pressure, and force value is constant, need increase magnitude of interference when working pressure strengthens, and causes seal ring to damage, and causes valve leak.
The model utility content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and a kind of " U " type combined seal ring is provided, and when fluid pressure increased, launched to both sides respectively on two lip limits, forms sealing pair with valve shaft and valve body and seal, and has effectively prevented to leak and has taken place.
The utility model for achieving the above object, by the following technical solutions: a kind of " U " type combined seal ring, comprise O RunddichtringO body, it is characterized in that: " U " type seat on outer lip limit in described O RunddichtringO body is provided with and has, and constitute whole with body.
The utility model beneficial effect: when the pressure of liquid increases; launch to both sides respectively on two lip limits of " U " type seat, forms sealing pair with valve shaft and valve body, can not damage seal ring because of the increase of pressure; thereby play sealing and protective action, prevent to leak and take place.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.
See accompanying drawing for details, a kind of " U " type combined seal ring comprises O RunddichtringO body 1, and described O RunddichtringO body is provided with " U " type seat 2 that has inside and outside lip limit 3,4, and constitutes whole with body.
Working principle: when fluid pressure increased, launched to both sides respectively on two lip limits of " O " in " U " type combined seal ring, " U " type seat, forms sealing pair with valve shaft and valve body, plays sealing and protective action, prevents to leak and take place.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. " U " type combined seal ring comprises O RunddichtringO body, it is characterized in that: " U " type seat on outer lip limit in described O RunddichtringO body is provided with and has, and constitute whole with body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203168954U CN201575147U (en) | 2009-12-09 | 2009-12-09 | U-shaped combined seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203168954U CN201575147U (en) | 2009-12-09 | 2009-12-09 | U-shaped combined seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201575147U true CN201575147U (en) | 2010-09-08 |
Family
ID=42695022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203168954U Expired - Fee Related CN201575147U (en) | 2009-12-09 | 2009-12-09 | U-shaped combined seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201575147U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367874A (en) * | 2011-10-26 | 2012-03-07 | 太仓市明宇密封件有限公司 | Combined seal ring for MBA shaft |
| CN103742645A (en) * | 2013-12-20 | 2014-04-23 | 广西南宁德通网络有限公司 | Assembly-type seal ring |
| WO2014063616A1 (en) * | 2012-10-22 | 2014-05-01 | 费希尔久安输配设备(成都)有限公司 | Valve stem and valve core assembly and valve comprising assembly |
| CN107178637A (en) * | 2017-07-27 | 2017-09-19 | 眉山中车制动科技股份有限公司 | A kind of safety valve with dual-seal function |
| CN109538779A (en) * | 2019-01-17 | 2019-03-29 | 广州宝力特密封技术有限公司 | Ball valve combined seal ring and ball valve |
| CN113175527A (en) * | 2021-05-17 | 2021-07-27 | 江西立新机液化设备制造有限公司 | Rotary sealing shaft head protection and automatic cooling method |
-
2009
- 2009-12-09 CN CN2009203168954U patent/CN201575147U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367874A (en) * | 2011-10-26 | 2012-03-07 | 太仓市明宇密封件有限公司 | Combined seal ring for MBA shaft |
| WO2014063616A1 (en) * | 2012-10-22 | 2014-05-01 | 费希尔久安输配设备(成都)有限公司 | Valve stem and valve core assembly and valve comprising assembly |
| CN103742645A (en) * | 2013-12-20 | 2014-04-23 | 广西南宁德通网络有限公司 | Assembly-type seal ring |
| CN107178637A (en) * | 2017-07-27 | 2017-09-19 | 眉山中车制动科技股份有限公司 | A kind of safety valve with dual-seal function |
| CN107178637B (en) * | 2017-07-27 | 2018-08-31 | 眉山中车制动科技股份有限公司 | A kind of safety valve with dual-seal function |
| WO2019019523A1 (en) * | 2017-07-27 | 2019-01-31 | 眉山中车制动科技股份有限公司 | Safety valve having double-sealing function |
| CN109538779A (en) * | 2019-01-17 | 2019-03-29 | 广州宝力特密封技术有限公司 | Ball valve combined seal ring and ball valve |
| CN113175527A (en) * | 2021-05-17 | 2021-07-27 | 江西立新机液化设备制造有限公司 | Rotary sealing shaft head protection and automatic cooling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20111209 |