CN207064766U - A kind of bonnet - Google Patents
A kind of bonnet Download PDFInfo
- Publication number
- CN207064766U CN207064766U CN201720945405.1U CN201720945405U CN207064766U CN 207064766 U CN207064766 U CN 207064766U CN 201720945405 U CN201720945405 U CN 201720945405U CN 207064766 U CN207064766 U CN 207064766U
- Authority
- CN
- China
- Prior art keywords
- plug
- bonnet
- ring
- sealing
- fluid cylinder
- 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 - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 5
- 229920001971 elastomer Polymers 0.000 claims description 10
- 229920000459 Nitrile rubber Polymers 0.000 claims description 9
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 claims description 9
- 238000005984 hydrogenation reaction Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 230000007812 deficiency Effects 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 230000005489 elastic deformation Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 230000035882 stress Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
A kind of parts of valve are the utility model is related to, more specifically to a kind of bonnet.Plug is effectively ensured the utility model with the sealing ring bag set at the circumference of fluid cylinder handing-over and will not be plastically deformed because of being produced under conditions of high pressure, vibration, impact, simultaneously, the elastic deformation of sealing position is unaffected, because the stress of sealing ring carrys out medial surface, pressure is rigidly preferable apart from marginal portion in medial surface entire surface, middle rigidity deficiency, elasticity is had a surplus, and drastically increases sealing property；Gasket ring uses the outer anistree metal gasket ring for being equipped with O-ring seal, good sealing effect, and has the characteristics that high temperature resistant, sealed reliable, in addition, the problems such as aging in the absence of nonmetallic materials, cold flow, under high pressure or worst hot case, it can ensure to use reliably and with long-term；Bonnet threaded pre-tightening effect is improved, improves screw thread reliability, reduce valve bonnet seal is influenceed by threaded pre-tightening effect, is improved the reliability of valve bonnet seal, is easy to be widely popularized use.
Description
Technical field
A kind of parts of valve are the utility model is related to, more specifically to a kind of bonnet.
Background technology
Bonnet is an important composition part on valve, and an entirety can be connected as with valve body, can also be separated from each other.
General bonnet can support executing agency's valve rod on valve and be positioned to valve rod, ensure valve rod normal rotation switch, bonnet
Sealing function is played, it has certain intensity, prevents the fluid outflow of inside so that the connection of valve rod and valve body more steps up
It is close.
The bonnet of prior art uses and realizes sealing using the structure of end face seal between bonnet and fluid cylinder mostly, but
Such a sealing effectiveness is bad, once bonnet screw thread slightly loosens, the bonnet end face seal compressed by screw thread will be failed immediately, sternly
Ghost image rings the reliability and operating efficiency of pump.
Utility model content
In view of the deficienciess of the prior art, the utility model provides a kind of good sealing effect, service life length and performance
Stable bonnet.
The utility model is achieved through the following technical solutions：
A kind of bonnet, including plug, the plug, which coordinates, to be arranged in fluid cylinder step aperture, and the plug joins with fluid cylinder
Circumference at be provided with sealing ring, the sealing ring includes hydrogenation butadiene acrylonitrile rubber circle, and rectangle is provided with the hydrogenation butadiene acrylonitrile rubber circle
Steel skeleton, the rectangular cross-section structure of the hydrogenation butadiene acrylonitrile rubber circle, its medial surface is a recessed arcwall face, outside the plug
End face is crimped with friction top, and the friction top is threadedly coupled with fluid cylinder step macropore, and the friction top internal backplane is circumferentially equal
Even to be provided with several screwed holes, the friction top penetrates screwed hole by pushing tow screw and fixed with the plug.
Further, the pushing tow screw is provided with gasket ring with plug junction.
Further, the gasket ring uses anistree metal gasket ring.
Further, it is equipped with O-ring seal outside the gasket ring.
Compared with prior art, the beneficial effects of the utility model are：
1st, the utility model is effectively ensured not with the sealing ring bag set at the circumference of fluid cylinder handing-over in the utility model plug
It can be plastically deformed because being produced under conditions of high pressure, vibration, impact, meanwhile, the elastic deformation of sealing position is unaffected, due to
The stress of sealing ring carrys out medial surface, and pressure is rigidly preferable apart from marginal portion in medial surface entire surface, middle rigidity deficiency,
Elasticity is had a surplus, and drastically increases sealing property；
2nd, the utility model gasket ring uses the outer anistree metal gasket ring for being equipped with O-ring seal, good sealing effect, and has
The features such as high temperature resistant, sealed reliable, in addition, the problems such as aging in the absence of nonmetallic materials, cold flow, even in high pressure or high temperature
Under operating mode, it can ensure to use reliably and with long-term；
3rd, the utility model improves bonnet threaded pre-tightening effect, improves screw thread reliability, reduces valve bonnet seal by spiral shell
The influence of line pretensioning effect, the reliability of valve bonnet seal is improved, be easy to be widely popularized use.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the detailed construction schematic diagram of sealing ring in Fig. 1.
In accompanying drawing：1. friction top；2. pushing tow screw；3. gasket ring；4. plug；5. fluid cylinder；6. sealing ring；61. it is fine to hydrogenate fourth
Cushion rubber；62. steel skeleton；63. arcwall face.
Embodiment
A kind of bonnet as shown in Figure 1-2, including plug 4, plug 4, which coordinates, to be arranged in the step aperture of fluid cylinder 5, plug 4
Sealing ring 6 is provided with the circumference joined with fluid cylinder 5, sealing ring 6 includes hydrogenation butadiene acrylonitrile rubber circle 61, set in hydrogenation butadiene acrylonitrile rubber circle 61
The steel skeleton 62 of rectangle is equipped with, the rectangular cross-section structure of hydrogenation butadiene acrylonitrile rubber circle 61, its medial surface is a recessed arcwall face 63,
The outer face of plug 4 is crimped with friction top 1, and friction top 1 is threadedly coupled with the step macropore of fluid cylinder 5, and the internal backplane of friction top 1 is circumferentially
Several screwed holes (not identified in figure) are evenly arranged with, friction top 1 penetrates screwed hole by pushing tow screw 2 and fixed with plug 4.
Further, pushing tow screw 2 is provided with gasket ring 3 with the junction of plug 4.
Further, gasket ring 3 uses anistree metal gasket ring.
Further, it is equipped with O-ring seal (not identified in figure) outside gasket ring 3.
In summary, preferred embodiment only of the present utility model, not it is used for limiting the utility model implementation
Scope, the equivalent change carried out by all shapes according to described in the utility model claims scope, construction, feature and spirit is with repairing
Decorations, all should be included in right of the present utility model.
Claims (4)
- A kind of 1. bonnet, it is characterised in that：Including plug, the plug, which coordinates, to be arranged in fluid cylinder step aperture, the plug With being provided with sealing ring at the circumference of fluid cylinder handing-over, the sealing ring includes hydrogenation butadiene acrylonitrile rubber circle, described to hydrogenate in butadiene acrylonitrile rubber circle The steel skeleton of rectangle is provided with, the rectangular cross-section structure of the hydrogenation butadiene acrylonitrile rubber circle, its medial surface is a recessed arcwall face, The plug outer face is crimped with friction top, and the friction top is threadedly coupled with fluid cylinder step macropore, the friction top inner bottom Plate is circumferentially evenly arranged with several screwed holes, and the friction top penetrates screwed hole by pushing tow screw and consolidated with the plug It is fixed.
- A kind of 2. bonnet according to claim 1, it is characterised in that：The pushing tow screw is provided with pad with plug junction Ring.
- A kind of 3. bonnet according to claim 2, it is characterised in that：The gasket ring uses anistree metal gasket ring.
- A kind of 4. bonnet according to claim 3, it is characterised in that：O-ring seal is equipped with outside the gasket ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720945405.1U CN207064766U (en) | 2017-07-31 | 2017-07-31 | A kind of bonnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720945405.1U CN207064766U (en) | 2017-07-31 | 2017-07-31 | A kind of bonnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207064766U true CN207064766U (en) | 2018-03-02 |
Family
ID=61518403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720945405.1U Expired - Fee Related CN207064766U (en) | 2017-07-31 | 2017-07-31 | A kind of bonnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207064766U (en) |
-
2017
- 2017-07-31 CN CN201720945405.1U patent/CN207064766U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 |