CN206802548U - A kind of double containment attachment means of valve and pipe fitting - Google Patents
A kind of double containment attachment means of valve and pipe fitting Download PDFInfo
- Publication number
- CN206802548U CN206802548U CN201720657200.3U CN201720657200U CN206802548U CN 206802548 U CN206802548 U CN 206802548U CN 201720657200 U CN201720657200 U CN 201720657200U CN 206802548 U CN206802548 U CN 206802548U
- Authority
- CN
- China
- Prior art keywords
- valve
- thread
- attaching nut
- jointing
- external screw
- 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
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- Valve Housings (AREA)
- Pipe Accessories (AREA)
Abstract
The utility model provides a kind of double containment attachment means of valve and pipe fitting, which solves following technical problem：Existing valve threaded connection mainly uses the connected mode of pipe joint, and merely by thread seal, because larger leakage easily occurs in the presence of thread groove, and pipe joint easily bursts when loine pressure is larger.The utility model is provided with Valve joint, Valve joint is provided with external screw thread, external screw thread is straight pipe thread, and external screw thread is provided with attaching nut, and attaching nut is provided with internal thread, internal thread is taper pipe thread, the upper other end of attaching nut is provided with jointing, and jointing is provided with O-ring seal, and O-ring seal uses axial seal rectangle groove, the jointing other end is provided with connecting line, and attaching nut is provided with two planes being parallel to each other.The utility model can be widely applied to the connection of valve and pipeline.
Description
Technical field
A kind of attachment means are the utility model is related to, more particularly to the double containment attachment means of a kind of valve and pipe fitting.
Background technology
In oil refining industry, valve pipeline using more and more diversified, for connection sealing requirements increasingly
Height, higher requirement it is also proposed to the operability of dismounting maintenance.
It is known that existing valve threaded connection is mainly simple using the connected mode of pipe joint, this connected mode
By thread seal, because easily there is larger leakage, and the pipe joint when loine pressure is larger in the presence of thread groove
Easily explosion.
The content of the invention
Technical problem to be solved in the utility model is：Existing valve threaded connection mainly uses the connection side of pipe joint
Formula, this connected mode relies on merely thread seal, because easily there is larger leakage in the presence of thread groove, and in pipe
Pipe joint easily bursts when road pressure is larger.The utility model provides a kind of double containment attachment means of valve and pipe fitting, and it is led
To rely on O-ring seal end face seal, screw thread auxiliary seal, can effective prevent leakage, larger pressure can be born, price is just
Preferably, dismantle and reinstall all eaily double containment attachment means of valve and pipe fitting.
Therefore, the technical solution of the utility model is, a kind of double containment attachment means of valve and pipe fitting, connect provided with valve
Head, Valve joint are provided with external screw thread, and external screw thread is straight pipe thread, and external screw thread is provided with attaching nut, set on attaching nut
There is internal thread, internal thread is taper pipe thread, and the upper other end of attaching nut is provided with jointing, and jointing is provided with O-shaped close
Seal, O-ring seal use axial seal rectangle groove, and the jointing other end is provided with connecting line, and attaching nut is provided with
Two planes being parallel to each other.
Preferably, jointing is to be welded to connect with connecting line.
Preferably, attaching nut is coordinated using seam with jointing and positioned.
The utility model beneficial effect is that, because provided with Valve joint, Valve joint is provided with external screw thread, external screw thread is circle
Column jecket screw thread, external screw thread are provided with attaching nut, and attaching nut is provided with internal thread, and internal thread is taper pipe thread, connect spiral shell
The other end is provided with jointing on mother, and jointing is provided with O-ring seal, and O-ring seal uses axial seal rectangle groove,
The jointing other end is provided with connecting line, and attaching nut is provided with two planes being parallel to each other, when valve is connected with pipeline
When, it is easy for installation, it is cheap, larger loine pressure can be born, can effectively prevent pipeline leakage, connection safety can
Lean on, dismounting inspection operation is simple.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is the diagrammatic cross-section of the utility model embodiment；
Fig. 3 is Valve joint part drawing；
Fig. 4 is jointing part drawing；
Fig. 5 is attaching nut's part drawing；
Fig. 6 is attaching nut's side view.
Symbol description in figure：
1. Valve joint；2. external screw thread；3.O type sealing rings；4. jointing；5. attaching nut；6. connecting line.
Embodiment
The utility model is described further with reference to embodiment.
A kind of attachment means of valve and pipe fitting, provided with Valve joint 1, Valve joint 1 is provided with external screw thread 2, external screw thread 2
For straight pipe thread, external screw thread 2 is provided with attaching nut 5, and attaching nut 5 is provided with internal thread, and internal thread is taper pipe thread,
The other end is provided with jointing 4 on attaching nut 5, and jointing 4 is provided with O-ring seal 3, and O-ring seal 3 is using axially close
Rectangle groove is sealed, the other end of jointing 4 is provided with connecting line 6, and attaching nut 5 is provided with two planes being parallel to each other, even
With connecting line 6 to be welded to connect, attaching nut 5 is coordinated with jointing 4 using seam to be positioned joint 4.
In the case where attaching nut 5 and Valve joint 1 tighten, O-ring seal 3 is effectively compressed, and is played main
Sealing function, when the larger temperature of pressure is higher, O-ring seal also can be replaced into sealing gasket use.External screw thread on Valve joint 1
2 are arranged to straight pipe thread, convenient processing, are used cooperatively with the taper pipe thread of attaching nut 5, play the work of auxiliary seal
With.O-ring seal is arranged to end face seal, and installation simply is not easy to gnaw circle.Two parallel planes can be effectively right on attaching nut 5
Device is tightened.
Only as described above, only specific embodiment of the utility model, when the utility model can not be limited with this
The scope of implementation, therefore the displacement of its equivalent assemblies, or the equivalent variations made according to the utility model patent protection domain and modification,
It all should still belong to the category that the utility model claims book is covered.
Claims (3)
1. the double containment attachment means of a kind of valve and pipe fitting, provided with Valve joint, it is characterized in that：The Valve joint is provided with
External screw thread, the external screw thread are straight pipe thread, and the external screw thread is provided with attaching nut, and the attaching nut is provided with interior spiral shell
Line, the internal thread are taper pipe thread, and the upper other end of the attaching nut is provided with jointing, and the jointing is provided with
O-ring seal, the O-ring seal use axial seal rectangle groove, and the jointing other end is provided with connecting line, institute
State attaching nut and be provided with two planes being parallel to each other.
2. the double containment attachment means of valve according to claim 1 and pipe fitting, it is characterised in that the jointing with
The connecting line is to be welded to connect.
3. the double containment attachment means of valve according to claim 1 and pipe fitting, it is characterised in that the attaching nut with
The jointing coordinates positioning using seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720657200.3U CN206802548U (en) | 2017-06-07 | 2017-06-07 | A kind of double containment attachment means of valve and pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720657200.3U CN206802548U (en) | 2017-06-07 | 2017-06-07 | A kind of double containment attachment means of valve and pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206802548U true CN206802548U (en) | 2017-12-26 |
Family
ID=60743926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720657200.3U Expired - Fee Related CN206802548U (en) | 2017-06-07 | 2017-06-07 | A kind of double containment attachment means of valve and pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206802548U (en) |
-
2017
- 2017-06-07 CN CN201720657200.3U patent/CN206802548U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20180607 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |