CN206205821U - A kind of antitorque sealed fitting - Google Patents
A kind of antitorque sealed fitting Download PDFInfo
- Publication number
- CN206205821U CN206205821U CN201621291672.3U CN201621291672U CN206205821U CN 206205821 U CN206205821 U CN 206205821U CN 201621291672 U CN201621291672 U CN 201621291672U CN 206205821 U CN206205821 U CN 206205821U
- Authority
- CN
- China
- Prior art keywords
- thread
- screw thread
- external screw
- leading portion
- piece
- 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
Abstract
The utility model discloses a kind of antitorque sealed fitting, external thread piece and inner thread piece including the connection of two bodys, leading portion external screw thread and back segment external screw thread are machined with the outer wall of external thread piece, the leading portion external screw thread is inclined to set, the leading portion external screw thread and back segment external screw thread are round thread, the first oblique antitorque step surface is provided with foremost in external thread piece, the back segment internal thread and leading portion internal thread being engaged with leading portion external screw thread and back segment external screw thread respectively are machined with the inwall of inner thread piece, front end corresponding to the leading portion internal thread on internal thread is sequentially provided with the shoulder of inner thread piece second, inner thread piece first shoulder；The second oblique antitorque step surface is provided with the root of inner thread piece, oil storage escape is provided between leading portion external screw thread and back segment external screw thread.The utility model both ensure that the sealing of joint, in turn ensure that screw thread does not occur thread gluing, it is ensured that the bonding strength of screw thread, improve the service life of screw thread.
Description
Technical field
The utility model oil pipes technical field, more particularly to a kind of antitorque sealed fitting.
Background technology
With the world's drastically riseing to fossil energy demand, the positive deep-well in current oil exploitation field, ultradeep well, high pressure
The direction of extraction of Oil/gas Well, thick oil thermal extraction, directional well etc. progressively develops, thus strong the sealing property between petroleum pipeline and connection
Degree is proposed high requirement, while sealing is improved, makes screw thread that thread gluing not occur, and is hardly damaged screw thread, improves connection
Intensity is industry technical problem urgently to be resolved hurrily.
Utility model content
To solve above mentioned problem present in prior art and actual conditions, the utility model provides a kind of antitorque sealing
Pipe joint, including the external thread piece and inner thread piece that two bodys are connected, are machined with leading portion external screw thread on the outer wall of external thread piece
With back segment external screw thread, the leading portion external screw thread is inclined to set, and the leading portion external screw thread and back segment external screw thread are round thread, outside
Screw element is provided with the first oblique antitorque step surface foremost；Be machined with the inwall of inner thread piece respectively with leading portion external screw thread and
Back segment internal thread and leading portion internal thread that back segment external screw thread is engaged, before corresponding to the leading portion internal thread on the inner thread piece
End is sequentially provided with the shoulder of inner thread piece second, inner thread piece first shoulder；Second tiltedly antitorque is provided with the root of inner thread piece
Terrace；Oil storage escape is provided between leading portion external screw thread and back segment external screw thread.
Preferably, there is one section of smooth annulus between the leading portion internal thread of the inner thread piece and the shoulder of inner thread piece second
Face.
Radial interference fit is formed between leading portion external screw thread and back segment internal thread, sealing surface is formd；Back segment external screw thread with it is preceding
It is interference fits between section internal thread, external thread piece the first oblique antitorque step surface foremost is tiltedly anti-with the second of inner thread piece root
Step surface is turned round to be fitted close to form seal combination face.The function of oil storage escape is for the unnecessary thread compound of storage and makes internal thread machining
Withdrawing, smooth setting up for anchor ring avoids stress concentration, prevents screw thread from thread gluing occurring.
The utility model both ensure that the sealing of joint, in turn ensure that screw thread does not occur thread gluing, it is ensured that the company of screw thread
Intensity is connect, the service life of screw thread is improve.
Brief description of the drawings
Fig. 1 is the structural representation of the antitorque sealed fitting of the utility model embodiment.
Specific embodiment
Technical solutions of the utility model are discussed in detail below in conjunction with the accompanying drawings.
Embodiment of the present utility model discloses a kind of antitorque sealed fitting, including the external thread piece 1 that two bodys are connected
With inner thread piece 2, leading portion external screw thread 12 and back segment external screw thread 11, the outer spiral shell of the leading portion are machined with the outer wall of external thread piece 1
Line 12 is inclined to set, and the leading portion external screw thread 12 and back segment external screw thread 11 are round thread, in setting foremost for external thread piece 1
There is the first oblique antitorque step surface 10；Be machined with the inwall of inner thread piece 2 respectively with leading portion external screw thread 12 and back segment external screw thread
The 11 back segment internal threads and leading portion internal thread being engaged, correspond to the front end of the leading portion internal thread successively on inner thread piece 2
It is provided with the second shoulder of inner thread piece 3, inner thread piece first shoulder 4；The second oblique antitorque step is provided with the root of inner thread piece 2
Face, is provided with oil storage escape 13 between leading portion external screw thread 12 and back segment external screw thread 11.
There is one section of smooth anchor ring 5 between the leading portion internal thread and the second shoulder of inner thread piece 3 of the inner thread piece 2.
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 being described in detail to the utility model 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.It is all it is of the present utility model spirit and principle within, any modification, equivalent substitution and improvements made etc.,
Should be included within protection domain of the present utility model.
Claims (2)
1. the external thread piece (1) and inner thread piece (2) of a kind of antitorque sealed fitting, including two bodys connection, it is characterised in that
Leading portion external screw thread (12) and back segment external screw thread (11), the leading portion external screw thread (12) are machined with the outer wall of external thread piece (1)
It is inclined to set, the leading portion external screw thread (12) and back segment external screw thread (11) are round thread, in external thread piece (1) foremost
Be provided with the first oblique antitorque step surface (10), be machined with the inwall of inner thread piece (2) respectively with leading portion external screw thread (12) and after
Back segment internal thread and leading portion internal thread that section external screw thread (11) is engaged, spiral shell in the leading portion is corresponded on inner thread piece (2)
The front end of line is sequentially provided with the shoulder of inner thread piece second（3）, inner thread piece first shoulder（4）；Set in the root of inner thread piece (2)
There is the second oblique antitorque step surface, oil storage escape is provided between leading portion external screw thread (12) and back segment external screw thread (11)（13）.
2. antitorque sealed fitting according to claim 1, it is characterised in that spiral shell in the leading portion of the inner thread piece (2)
Line and the shoulder of inner thread piece second（3）Between have one section of smooth anchor ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291672.3U CN206205821U (en) | 2016-11-29 | 2016-11-29 | A kind of antitorque sealed fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291672.3U CN206205821U (en) | 2016-11-29 | 2016-11-29 | A kind of antitorque sealed fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206205821U true CN206205821U (en) | 2017-05-31 |
Family
ID=58748362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621291672.3U Expired - Fee Related CN206205821U (en) | 2016-11-29 | 2016-11-29 | A kind of antitorque sealed fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206205821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481288A (en) * | 2016-11-29 | 2017-03-08 | 无锡金顶石油管材配件制造有限公司 | A kind of antitorque sealed fitting |
-
2016
- 2016-11-29 CN CN201621291672.3U patent/CN206205821U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481288A (en) * | 2016-11-29 | 2017-03-08 | 无锡金顶石油管材配件制造有限公司 | A kind of antitorque sealed fitting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202380985U (en) | Tubular air seal thread joint | |
| CN202391353U (en) | Non-collar connection thread for petroleum oil pipe and casing | |
| CN203531777U (en) | High-quality airtight seal oil casing threaded joint | |
| CN103527110A (en) | Multistage sealing anti-sticky buckle type thread for titanium alloy oil casing | |
| CN103628827B (en) | Anti-stick button three grades of end plane metal sealing titanium compo pipe nipples | |
| CN201322148Y (en) | High performance oil pipe hermetic seal threaded connection structure | |
| CN201310305Y (en) | Screw thread connecting structure of oil pipe for oil well or sleeve of gas well | |
| CN201723179U (en) | Air-tight oil casing nipple | |
| CN206205821U (en) | A kind of antitorque sealed fitting | |
| CN202689965U (en) | Air-tight seal oil pipe threaded joint applied to high-temperature and high-pressure gas well | |
| CN201013257Y (en) | Oil pipe coupling | |
| CN202718630U (en) | Well cementation cement head fast connecting clamp hoop | |
| CN204960827U (en) | Oil drilling is with airtight tool joint of little external diameter high strength | |
| CN202039786U (en) | Connecting structure for high-pressure well completion oil pipe | |
| CN105114752B (en) | Water pipe rapid movable connector | |
| CN207377510U (en) | Coiled tubing slips connects integrated tool of giving up | |
| CN206329284U (en) | A kind of dual hermetic seal special buckle oil pipe of metallic elastic | |
| CN206205822U (en) | A kind of antitorque pipe joint of high sealing | |
| CN207278200U (en) | Air-tight seal screw joint | |
| CN102996079A (en) | Tubular air sealing screwed joint and application thereof | |
| CN106089119B (en) | A kind of high-performance oil casing pipe special thread jointing | |
| CN205259964U (en) | Big effective high leakproofness screwed joint of expansion rate lower excess volume expansion | |
| CN106481288A (en) | A kind of antitorque sealed fitting | |
| CN203285354U (en) | Petroleum casing pipe threaded connector | |
| CN201466660U (en) | Split type cable connection structure for oil gas exploitation intellect drill string adapter |
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: 20170531 Termination date: 20171129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |