CN206429202U - A kind of anti-thread gluing sealed joint pipe joint - Google Patents
A kind of anti-thread gluing sealed joint pipe joint Download PDFInfo
- Publication number
- CN206429202U CN206429202U CN201621293155.XU CN201621293155U CN206429202U CN 206429202 U CN206429202 U CN 206429202U CN 201621293155 U CN201621293155 U CN 201621293155U CN 206429202 U CN206429202 U CN 206429202U
- Authority
- CN
- China
- Prior art keywords
- female joint
- joint
- thread
- pin end
- conical surface
- 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
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- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The utility model discloses a kind of anti-thread gluing sealed joint pipe joint, including female joint and pin end, the female joint inner peripheral surface is machined with internal thread, front end corresponding to the internal thread in female joint is sequentially provided with the shoulder of female joint second, female joint first shoulder, external screw thread is correspondingly provided with the pin end, the internal thread and external screw thread are cylindrical thread, rear end on the contact surface of the female joint and pin end corresponding to threaded joints is provided with oil storage escape and sealing surface, the sealing surface is mutually extruded to contact and formed with the spherical on pin end outer wall with second conical surface respectively by first conical surface on female joint inwall, the spherical is mutually connected with second conical surface.The utility model is tightly connected pipe joint and both preferably ensure that sealing, and Thread-sticking is prevented again, and sealing surface is located at centre, and good sealing effect is also less prone to damage in interface, can protect screw thread, be prevented effectively from stress concentration, improve product whole service life.
Description
Technical field
The utility model belongs to oil pipes technical field, more particularly to a kind of anti-thread gluing sealed joint pipe joint.
Background technology
Petroleum gas is the valuable source of the mankind, and in petroleum gas transport, the sealing for improving pipe is proposed
Higher requirement, while using interference fit, Thread-sticking occurs for fragile screw thread, these bonding strengths all to screw thread
It is proposed very high request.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of anti-thread gluing sealed joint pipe joint, including female joint
And pin end, the female joint inner peripheral surface is machined with internal thread, in female joint corresponding to the internal thread front end successively
Provided with the shoulder of female joint second, female joint first shoulder, external screw thread, the internal thread and outer spiral shell are correspondingly provided with the pin end
Line is cylindrical thread, and the upper rear end corresponding to threaded joints is moved back provided with oil storage on the contact surface of the female joint and pin end
Cutter groove, sealing surface, the sealing surface by first conical surface on female joint inwall respectively with the spherical on pin end outer wall and second
The conical surface mutually extrudes contact and formed, and the spherical is mutually connected with second conical surface, and the taper of first conical surface is 1/12-1/16；
The taper of second conical surface is 1/6-1/8, the corresponding 30~50mm of radius of spherical.
Preferably, pin end first shoulder is mutually connected in the female joint first shoulder, the pin end first shoulder
Provided with a circle circular groove at root.
Provided with a circle circular groove at the root of the pin end first shoulder, by setting circular groove it is possible to prevente effectively from stress collection
In, improve product whole service life.
Sealing structure is using two-stage sealing structure, i.e. first conical surface to spherical and first conical surface to the close of second conical surface
Design form is sealed, the taper of first conical surface is less than the taper of second conical surface, forms the conical surface and the conical surface, the conical surface is crowded with spherical
The form of press contacts, sealing effectiveness is fine, and sealing station is away from torque shoulder, with sealed reliable, prevents sealing face damage
Feature.
First conical surface and spherical make sealing structure under tensile load effect by extruding, keep seal contact pressure and
Length；First conical surface and second conical surface make sealing structure under compressive load effect by extruding, keep seal contact pressure；Storage
The function of oily escape is the unnecessary thread compound of storage and makes internal thread machining withdrawing.
The utility model is tightly connected pipe joint and both preferably ensure that sealing, and Thread-sticking is prevented again, and sealing surface is set
In centre, good sealing effect is also less prone to damage in interface, can protect screw thread, be prevented effectively from stress concentration, improve product whole
Body service life.
Brief description of the drawings
Further illustrate with reference to the accompanying drawings and detailed description：
Fig. 1 is a kind of structural representation of anti-thread gluing sealed joint pipe joint of the utility model embodiment.
Embodiment
Embodiment 1
As shown in figure 1, a kind of anti-thread gluing sealed joint pipe joint, including female joint 2 and pin end 1, in the female joint 2
Periphery is machined with internal thread 9, and the front end corresponding to the internal thread 9 in female joint 2 is sequentially provided with the shoulder of female joint second
3rd, external screw thread is correspondingly provided with female joint first shoulder 10, the pin end 1, the internal thread 9 and external screw thread are cylinder spiral shell
Line, the female joint 2 is with the upper rear end corresponding to threaded joints on the contact surface of pin end 1 provided with oil storage escape 4, sealing
Face, the sealing surface by first conical surface on female joint inwall respectively with the phase of 11 and second conical surface of spherical 5 on pin end outer wall
Extruding contact is formed, and the spherical 11 is mutually connected with second conical surface 5, and the taper of first conical surface is 1/12-1/16；It is described
The taper of second conical surface is 1/6-1/8, the corresponding 30~50mm of radius of spherical.
Mutually it is connected at pin end first shoulder, the root of the pin end first shoulder with the female joint first shoulder 10
Provided with a circle circular groove 12.
Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, this is not limited to
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic
Carry out equivalent substitution.It is all it is of the present utility model spirit and principle within, any modification, equivalent substitution and improvements made etc.,
It should be included within protection domain of the present utility model.
Claims (2)
1. a kind of anti-thread gluing sealed joint pipe joint, including female joint（2）And pin end（1）, the female joint（2）Inner peripheral surface
Internal thread is machined with, in female joint（2）The upper front end corresponding to the internal thread is sequentially provided with the shoulder of female joint second（3）, it is female
Joint first shoulder（10）, the pin end（1）On be correspondingly provided with external screw thread, the internal thread and external screw thread are cylinder spiral shell
Line, the female joint（2）With pin end（1）Contact surface on correspond to threaded joints rear end be provided with oil storage escape（4）
And sealing surface, the sealing surface by first conical surface on female joint inwall respectively with the spherical on pin end outer wall（11）With second
The conical surface（5）Mutually extruding contact is formed, the spherical（11）With second conical surface（5）Mutually it is connected, the taper of first conical surface is
1/12-1/16；The taper of second conical surface is 1/6-1/8, spherical（11）Corresponding 30~50mm of radius.
2. according to the anti-thread gluing sealed joint pipe joint described in claim 1, it is characterised in that：With the female joint first shoulder
（10）Mutually it is connected in pin end first shoulder, the pin end first shoulder（10）Root at provided with one circle circular groove（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621293155.XU CN206429202U (en) | 2016-11-29 | 2016-11-29 | A kind of anti-thread gluing sealed joint pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621293155.XU CN206429202U (en) | 2016-11-29 | 2016-11-29 | A kind of anti-thread gluing sealed joint pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206429202U true CN206429202U (en) | 2017-08-22 |
Family
ID=59588681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621293155.XU Expired - Fee Related CN206429202U (en) | 2016-11-29 | 2016-11-29 | A kind of anti-thread gluing sealed joint pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206429202U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639909A (en) * | 2016-11-29 | 2017-05-10 | 无锡金顶石油管材配件制造有限公司 | Anti-thread-gluing sealing connecting pipe joint |
| CN110374522A (en) * | 2019-06-28 | 2019-10-25 | 中国石油天然气集团有限公司 | A kind of shale gas exploitation nipple |
-
2016
- 2016-11-29 CN CN201621293155.XU patent/CN206429202U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639909A (en) * | 2016-11-29 | 2017-05-10 | 无锡金顶石油管材配件制造有限公司 | Anti-thread-gluing sealing connecting pipe joint |
| CN110374522A (en) * | 2019-06-28 | 2019-10-25 | 中国石油天然气集团有限公司 | A kind of shale gas exploitation nipple |
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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: 20170822 Termination date: 20181129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |