CN201047459Y - Durable composite sealed type valve - Google Patents
Durable composite sealed type valve Download PDFInfo
- Publication number
- CN201047459Y CN201047459Y CNU2007200958938U CN200720095893U CN201047459Y CN 201047459 Y CN201047459 Y CN 201047459Y CN U2007200958938 U CNU2007200958938 U CN U2007200958938U CN 200720095893 U CN200720095893 U CN 200720095893U CN 201047459 Y CN201047459 Y CN 201047459Y
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- CN
- China
- Prior art keywords
- ring
- valve
- thrust
- nut
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a maintenance-free durable combined sealing valve, consisting of a valve body and a valve head. The valve head comprises a valve rod, a valve rod nut and a valve cap; the valve rod nut consists of a nut cap and a nut rod; the nut cap is arranged at top of the valve cap; the nut rod is arranged between the valve rod and the valve cap; the nut cap is internally provided with a dustproof sealing trough which is internally provided with a dustproof sealing ring; the internal circumferential surface of the nut rod is sequentially provided with an upper ring concave trough and a lower ring concave trough; the external circumferential surface of the nut rod is provided with a ring concave trough, each concave trough is respectively provided with an O-shaped sealing ring; the lower part of the nut rod is a thrust valve rod which is respectively provided with three ring thrust concave troughs; a thrust ring is arranged between the thrust valve rod and the valve cap; the internal circumferential surface of the thrust ring is sequentially provided with two ring embedded concave troughs; the thrust valve rod is coincident with the thrust ring; the O-shaped sealing ring is arranged between the nut rod and the thrust ring; a main sealing ring is arranged between the valve rod at the lower part of the thrust ring and the valve cap. The utility model has the advantages of reaching full sealing, preventing the external leakage of an internal medium of the valve, reducing the operation torque, and finally implementing the long service life, maintenance-free effect and direct embedding of the valve.
Description
Technical field
The utility model relates to a kind of valve arrangement that is used for the transport flow medium, more particularly, relates to a kind ofly can to use for a long time, non-maintaining combination seal formula valve.
Background technique
The valve that is used for the transport flow medium pipeline, traditional sealing means are that the amount of deformation by the stuffing box packing of filling between valve rod and bonnet reaches valve stem seal.Make stuffing box packing produce wearing and tearing owing to the rotation of valve makes valve rod and stuffing box packing produce spin friction, cause valve to use back sealing function forfeiture for a long time, cause that medium leaks outside in the valve.
The model utility content
Technical problem to be solved in the utility model is, overcomes the deficiencies in the prior art, and a kind of non-maintaining durable combination seal formula valve is provided.
The durable combination seal formula of the utility model valve, be achieved by following technical proposals, valve is made up of valve body and valve head, described valve head comprises valve rod, Stem Mut and bonnet, described Stem Mut is made up of nut cap and Nut pole, the nut cap is positioned at the bonnet top, and Nut pole is between valve rod and bonnet; The dust sealing groove is set in the nut cap, in the dust sealing groove dust-proof seal ring is set, the Nut pole inner peripheral surface sets gradually upper and lower ring groove, and the Nut pole outer circumferential face is provided with ring groove, and described groove is provided with the O RunddichtringO respectively; The Nut pole below is provided with thrust ring for setting gradually the thrust valve rod of three ring-like thrust grooves between thrust valve rod and the bonnet, the thrust ring inner peripheral surface sets gradually two ring-like embedded grooves, and thrust valve rod and thrust ring match; The O RunddichtringO is set between Nut pole and the thrust ring; Between thrust ring below valve rod and the bonnet primary seal circle is set.
Nut pole outer circumferential face described in the utility model is provided with ring groove between upper and lower ring groove.Described thrust ring is combined by left and right semi-ring.
The utility model design of Sealing Structure has triple relatively independent sealings: a, dust-proof seal ring; B, inside and outside each two mazy combination seals of forming of totally 4 O RunddichtringOs; C, the sealing of primary seal circle; Such structure has realized triple protection, guarantees that medium does not leak outside in the valve.Thereby realize long lifetime, the non-maintaining technical requirements that can reach direct-burried.And under the protection of primary seal circle, the O RunddichtringO can onlinely be changed, and in normal using process, does not need to open valve body, directly Stem Mut is removed, and is just replaceable.Wherein each seal ring and valve rod fitted seal, seal ring has low-frictional force, does not have extruding force with valve rod, not only guarantees the long lifetime of seal ring, but also has reduced the operation moment of torsion.
The utility model thrust ring cooperates with valve rod, can prevent that valve rod from coming off, and by the dark bar operation of the fixing realization of this device.Thrust ring can be selected anticreep zinc-copper material for use, and good self lubricity is arranged, and can play to reduce effect of torque.This structure can not only reach sealing fully, stops leaking outside of the interior medium of valve, but also has reduced the operation torque, finally realizes the long lifetime of valve, the non-maintaining direct-burried that reaches.
Description of drawings
Fig. 1 is the utility model structure sectional view;
Fig. 2 is the utility model Stem Mut structure sectional view;
Fig. 3 is the utility model thrust ring structure sectional view.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
The utility model is made up of valve body and valve head, and as shown in Figure 1, valve head comprises valve rod 1, Stem Mut 3 and bonnet 5, and Stem Mut is arranged at the bonnet mouth, and Stem Mut 3 is connected by the silk reed with bonnet 5, and valve rod is arranged in Stem Mut and the bonnet; Stem Mut 3 belows are the thrust valve rod 8 that sets gradually three ring-like thrust grooves, and valve rod 1 is an integral body with thrust valve rod 8; Between thrust valve rod 8 and the bonnet 5 thrust ring 6 is set, thrust valve rod 8 matches with thrust ring 6; Between Stem Mut 3 and the thrust ring 6 O RunddichtringO 4 is set; Between thrust ring below valve rod and the bonnet primary seal circle 7 is set.
As shown in Figure 2, Stem Mut is made up of nut cap 9 and Nut pole 10, and nut cap 9 is positioned at the bonnet over top during combination, and Nut pole 10 is between valve rod and bonnet, and nut cap 9 and Nut pole 10 are an integral body; Dust sealing groove 11 is set in the nut cap, dust-proof seal ring 2 (see figure 1)s are set in the dust sealing groove during combination, the Nut pole inner peripheral surface sets gradually upper and lower ring groove 12 and 13, the Nut pole outer circumferential face is provided with ring groove 14, the ring groove 14 that the Nut pole outer circumferential face is provided with is between upper and lower ring groove 12 and 13, and above-mentioned ring groove 12,13 and 14 is provided with the O RunddichtringO respectively during combination.
As shown in Figure 3, the thrust ring inner peripheral surface sets gradually two ring-like embedded grooves 15 and 16, and thrust ring is to be combined by left and right semi-ring; Cooperate with the thrust valve rod during assembling, ring-like embedded groove and thrust valve rod coincide because of the boss that ring-like thrust groove forms, and thrust valve rod and thrust ring match.Adopt said structure, be in transmission connection by screw thread between stem bottom and the valve plate then, valve plate moves up and down and valve rod maintains static in the transmission process, thereby realizes dark bar operation, effectively avoided because of valve rod moves up and down the damage that causes, reached the purpose that prolongs life of valve.
Embodiment recited above is described the utility model preferred implementation; be not that design of the present utility model and scope are limited; under the prerequisite that does not break away from the utility model design philosophy; common engineers and technicians make the technical solution of the utility model in related domain various distortion and improvement all should belong to protection domain of the present utility model.
Claims (3)
1. a durable combination seal formula valve is made up of valve body and valve head, it is characterized in that, described valve head comprises valve rod, Stem Mut and bonnet, described Stem Mut is made up of nut cap and Nut pole, and the nut cap is positioned at the bonnet top, and Nut pole is between valve rod and bonnet; The dust sealing groove is set in the nut cap, in the dust sealing groove dust-proof seal ring is set, the Nut pole inner peripheral surface sets gradually upper and lower ring groove, and the Nut pole outer circumferential face is provided with ring groove, and described groove is provided with the O RunddichtringO respectively; The Nut pole below is provided with thrust ring for setting gradually the thrust valve rod of three ring-like thrust grooves between thrust valve rod and the bonnet, the thrust ring inner peripheral surface sets gradually two ring-like embedded grooves, and thrust valve rod and thrust ring match; The O RunddichtringO is set between Nut pole and the thrust ring; Between thrust ring below valve rod and the bonnet primary seal circle is set.
2. durable combination seal formula valve according to claim 1 is characterized in that, the ring groove that described Nut pole outer circumferential face is provided with is between upper and lower ring groove.
3. durable combination seal formula valve according to claim 1 is characterized in that described thrust ring is combined by left and right semi-ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200958938U CN201047459Y (en) | 2007-04-27 | 2007-04-27 | Durable composite sealed type valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200958938U CN201047459Y (en) | 2007-04-27 | 2007-04-27 | Durable composite sealed type valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201047459Y true CN201047459Y (en) | 2008-04-16 |
Family
ID=39300042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200958938U Expired - Lifetime CN201047459Y (en) | 2007-04-27 | 2007-04-27 | Durable composite sealed type valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201047459Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747744A (en) * | 2013-12-31 | 2015-07-01 | 安徽红星阀门有限公司 | Brake vale |
| CN105465475A (en) * | 2016-01-08 | 2016-04-06 | 朱志强 | Movable fit leakage controller for valve |
| CN106122504A (en) * | 2016-08-31 | 2016-11-16 | 广东永泉阀门科技有限公司 | A kind of soft sealing gate valve of cone seal |
| CN106931224A (en) * | 2015-12-31 | 2017-07-07 | 天津市庆成科技发展有限公司 | A kind of electric drive valve |
-
2007
- 2007-04-27 CN CNU2007200958938U patent/CN201047459Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747744A (en) * | 2013-12-31 | 2015-07-01 | 安徽红星阀门有限公司 | Brake vale |
| CN106931224A (en) * | 2015-12-31 | 2017-07-07 | 天津市庆成科技发展有限公司 | A kind of electric drive valve |
| CN105465475A (en) * | 2016-01-08 | 2016-04-06 | 朱志强 | Movable fit leakage controller for valve |
| CN105465475B (en) * | 2016-01-08 | 2017-10-10 | 朱志强 | A kind of dynamic cooperation leakage controller for valve |
| CN106122504A (en) * | 2016-08-31 | 2016-11-16 | 广东永泉阀门科技有限公司 | A kind of soft sealing gate valve of cone seal |
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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: 20080416 |
|
| CX01 | Expiry of patent term |