CN215632819U - High-air-tightness three-seal threaded joint - Google Patents
High-air-tightness three-seal threaded joint Download PDFInfo
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- CN215632819U CN215632819U CN202122173861.8U CN202122173861U CN215632819U CN 215632819 U CN215632819 U CN 215632819U CN 202122173861 U CN202122173861 U CN 202122173861U CN 215632819 U CN215632819 U CN 215632819U
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Abstract
The utility model discloses a high-air-tightness three-seal threaded joint which comprises a pipe body, wherein a coupling is fixedly arranged on the outer wall of the pipe body, a secondary seal surface is arranged on one side of the coupling, a main seal surface is arranged on one side of the secondary seal surface, an external thread is arranged on one side of the pipe body, an internal thread is arranged on one side of the external thread, the upper surface of the main seal surface is provided with a main seal surface for matching, and the upper surface of the secondary seal surface is provided with a secondary seal surface for matching. According to the high-airtightness three-seal threaded joint, the main seal surface, the secondary seal surface, the main seal surface fit and the secondary seal surface fit are arranged, so that the sealing performance can be effectively improved, the sealing effect can be improved, the main seal surface moves backwards, the end face torsion-stopping step can be effectively prevented from deforming to influence the sealing effect, the whole device is simple in structure, the sealing effect is good, the practicability is high, and the high-airtightness three-seal threaded joint is suitable for wide popularization and application.
Description
Technical Field
The utility model relates to the technical field of threaded joints, in particular to a high-airtightness three-seal threaded joint.
Background
In recent years, with the gradual exhaustion of the oil and gas well production in the easy-to-exploit area, the exploration and exploitation of the oil and gas well face the problems of more and more complex geological conditions and more difficult exploitation, so that the technical requirements on the sealing performance, the compressive strength and the like of the pipe joint are higher and higher.
The existing API (American Petroleum institute) threaded joint and other various special threaded joints do not fully exert the mechanical properties of materials in the design process, so that an oil-gas well pipe manufacturing company can develop a more excellent and reliable special threaded pipe joint by utilizing the mechanical properties of the materials as far as possible under the condition that the design meets the field use requirements.
The prior art has the following defects or problems:
1. the existing high-air-tightness three-seal threaded joint has the disadvantages of complex structure, high manufacturing cost and low batch processing efficiency of the whole device;
2. the existing three-seal threaded joint with high air tightness is poor in sealing effect, and the end face torsion-stopping step is easy to deform.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-airtightness three-seal threaded joint aiming at the defects in the prior art so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a three sealed screwed joint of high gas tightness, includes the body, body outer wall fixed mounting has the coupling, coupling one side is provided with the sealed face of inferior, sealed face one side of inferior is provided with the sealed face of owner, body one side is provided with the external screw thread, external screw thread one side is provided with the internal thread, the sealed face upper surface of owner is provided with the sealed cooperation of owner, the sealed face upper surface of inferior is provided with the sealed cooperation of inferior.
As the preferred technical scheme of the utility model, the coupling is fixedly sleeved on the upper surface of the pipe body.
As a preferred technical scheme of the utility model, a secondary sealing surface is paved on the upper surface of the coupling.
As a preferred technical scheme of the utility model, a main sealing surface is paved on the upper surface of the coupling.
As a preferable technical scheme of the utility model, the outer surface of the pipe body is provided with an external thread.
As a preferable technical scheme of the utility model, the inner wall of the pipe body is provided with internal threads.
In a preferred embodiment of the present invention, the primary sealing surface and the secondary sealing surface are fitted in the same plane.
Compared with the prior art, the utility model provides a high-airtightness three-seal threaded joint, which has the following beneficial effects:
this three sealed screwed joint of high gas tightness through setting up the cooperation of the sealed face of main seal face, inferior seal face, main seal face and inferior seal face, can its leakproofness of effectual increase and promote sealed effect, and the sealed face position of main seal moves backward, can prevent effectively that the terminal surface from only turning round the step deformation and influencing sealed effect, and the overall device simple structure, sealed effectual, the practicality is higher, relatively is fit for extensive using widely.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is a partial structural schematic diagram of the present invention.
In the figure: 1. a pipe body; 2. a coupling; 3. a secondary sealing surface; 4. a primary seal face; 5. an external thread; 6. an internal thread; 7. the main sealing surface is matched; 8. the secondary sealing surfaces are matched.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, in this embodiment: the utility model provides a three sealed screwed joint of high gas tightness, includes body 1, and 1 outer wall fixed mounting of body has coupling 2, and 2 one side of coupling is provided with inferior sealed face 3, and 3 one sides of inferior sealed face are provided with the sealed face 4 of owner, and 1 one side of body is provided with external screw thread 5, and external screw thread 5 one side is provided with internal thread 6, and 4 upper surfaces of the sealed face of owner are provided with the sealed face cooperation 7 of owner, and 3 upper surfaces of inferior sealed face are provided with the sealed face cooperation 8 of inferior.
In the embodiment, the coupling 2 is fixedly sleeved on the upper surface of the pipe body 1 for better fixing and preventing the falling-off condition; the upper surface of the coupling 2 is paved with a secondary sealing surface 3, so that better sealing effect and better use are facilitated; the main sealing surface 4 is laid on the upper surface of the coupling 2, so that a better sealing effect is further obtained, and the use of poor sealing effect is avoided; the outer surface of the pipe body 1 is provided with an external thread 5 for better connection and better fixation; the inner wall of the pipe body 1 is provided with an internal thread 6, so that the connection and the fixation can be further conveniently and better, and the sealing performance is improved; the main sealing surface matching 7 and the secondary sealing surface matching 8 are in the same plane, so that the best use effect is ensured in order to obtain a better sealing effect.
The working principle and the using process of the utility model are as follows: this three sealed screwed joint of high gas tightness through setting up main sealed face 4, inferior sealed face 3, main sealed face cooperation 7 and inferior sealed face cooperation 8, can its leakproofness of effectual increase and promote sealed effect, and the main sealed face 4 positions move backward, can prevent effectively that the terminal surface from only turning round the step deformation and influencing sealed effect, and overall device simple structure is sealed effectual, and the practicality is higher, relatively is fit for extensive using widely.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a three sealed screwed joint of high gas tightness which characterized in that: including body (1), body (1) outer wall fixed mounting has coupling (2), coupling (2) one side is provided with sealed face (3) of inferior, sealed face (3) one side of inferior is provided with sealed face (4) of owner, body (1) one side is provided with external screw thread (5), external screw thread (5) one side is provided with internal thread (6), sealed face (4) upper surface of owner is provided with sealed face cooperation (7) of owner, sealed face (3) upper surface of inferior is provided with sealed face cooperation (8) of inferior.
2. A highly gas-tight three-seal threaded joint according to claim 1, wherein: the coupling (2) is fixedly sleeved on the upper surface of the pipe body (1).
3. A highly gas-tight three-seal threaded joint according to claim 1, wherein: and a secondary sealing surface (3) is laid on the upper surface of the coupling (2).
4. A highly gas-tight three-seal threaded joint according to claim 1, wherein: and a main sealing surface (4) is laid on the upper surface of the coupling (2).
5. A highly gas-tight three-seal threaded joint according to claim 1, wherein: the outer surface of the pipe body (1) is provided with an external thread (5).
6. A highly gas-tight three-seal threaded joint according to claim 1, wherein: the inner wall of the pipe body (1) is provided with an internal thread (6).
7. A highly gas-tight three-seal threaded joint according to claim 1, wherein: the primary sealing surface matching (7) and the secondary sealing surface matching (8) are in the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122173861.8U CN215632819U (en) | 2021-09-09 | 2021-09-09 | High-air-tightness three-seal threaded joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122173861.8U CN215632819U (en) | 2021-09-09 | 2021-09-09 | High-air-tightness three-seal threaded joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215632819U true CN215632819U (en) | 2022-01-25 |
Family
ID=79911980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122173861.8U Active CN215632819U (en) | 2021-09-09 | 2021-09-09 | High-air-tightness three-seal threaded joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215632819U (en) |
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2021
- 2021-09-09 CN CN202122173861.8U patent/CN215632819U/en active Active
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