CN220580983U - Diameter-variable petroleum casing coupling - Google Patents
Diameter-variable petroleum casing coupling Download PDFInfo
- Publication number
- CN220580983U CN220580983U CN202321261835.3U CN202321261835U CN220580983U CN 220580983 U CN220580983 U CN 220580983U CN 202321261835 U CN202321261835 U CN 202321261835U CN 220580983 U CN220580983 U CN 220580983U
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- CN
- China
- Prior art keywords
- top block
- coupling
- pipe body
- thread
- wall
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- 230000008878 coupling Effects 0.000 title claims abstract description 37
- 238000010168 coupling process Methods 0.000 title claims abstract description 37
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 37
- 239000003208 petroleum Substances 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000010276 construction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 210000001503 joint Anatomy 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model discloses a variable-diameter petroleum casing coupling, which comprises a coupling pipe body, wherein an annular groove is formed in the middle of an inner hole of the coupling pipe body, and an annular pipe body top block is arranged in the annular groove; the coupling is characterized in that a first inner connecting structure and a second inner connecting structure which are symmetrical in structure are respectively arranged at the left end and the right end of an inner hole of the coupling pipe body, and the first inner connecting structure comprises a first inner sealing plane, a first inner conical connecting thread, a second thread sleeve connected with the coupling pipe body and a first thread sleeve connected with the second thread sleeve from outside to inside. The application provides a coupling structure provides a brand-new connection structure, and first thread bush and second thread bush are detachable construction, and first thread bush, second thread bush, the equal joinable different diameter's of hooping body to realized the technological effect of a product butt joint multiple different pipe diameter body, be convenient for popularize and use in industry.
Description
Technical Field
The utility model relates to the technical field of oil casing structures for oil and gas drills, in particular to a variable-diameter petroleum casing coupling.
Background
The coupling type petroleum casing generally comprises a coupling and a pipe body, and the pipe bodies are connected through the coupling to form the whole petroleum casing. In the application process of petroleum casing pipes, the condition that the pipe bodies with different pipe diameters are connected is frequently met, in the traditional technology, the pipe bodies with different pipe diameters are connected with corresponding couplings, and then a connecting pipe is prepared to connect the two couplings. The use mode is complex in process and low in efficiency, and in addition, more connecting parts influence the strength, the sealing performance and the like of the connection.
Disclosure of Invention
The utility model aims to provide a variable-diameter petroleum casing coupling which meets the connection use requirements of pipes with different pipe diameters.
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:
the diameter-variable petroleum casing coupling comprises a coupling pipe body, wherein an annular groove is formed in the middle of an inner hole of the coupling pipe body, and an annular pipe body top block is arranged in the annular groove;
the coupling comprises a coupling body, wherein a first inner connecting structure and a second inner connecting structure which are symmetrical in structure are respectively arranged at the left end and the right end of an inner hole of the coupling body, and the first inner connecting structure comprises a first inner sealing plane and first inner conical connecting threads from outside to inside;
the second thread sleeve comprises a first cylinder part and a first cone part which are connected from outside to inside, the outer wall of the first cylinder part is in sealing connection with the first inner sealing plane, and the outer wall of the first cone part is in threaded connection with the first inner cone connecting thread;
the first thread sleeve comprises a second cylinder part and a second cone part which are connected from outside to inside, the outer wall of the second cylinder part is in sealing connection with the inner wall of the first cylinder part of the second thread sleeve, and the outer wall of the second cone part is in threaded connection with the inner wall of the first cone part of the second thread sleeve;
the first thread sleeve inner sidewall includes a second inner sealing surface and a second inner tapered connecting thread from outside to inside.
The pipe body ejector block comprises a left ejector block and a right ejector block which are arranged at left and right intervals, wherein the left ejector block and the right ejector block are symmetrically arranged in a structure, and a plurality of springs are arranged between the left ejector block and the right ejector block.
Wherein, a plurality of springs are evenly arranged along same circumference interval.
Wherein, evenly be provided with a plurality of guide bars along same circumference interval in the ring channel, arbitrary guide bar all passes left kicking block and right kicking block, and with left kicking block and right kicking block sliding connection.
And annular sealing grooves are formed in the left side of the left top block and the right side of the right top block.
Compared with the prior art, the utility model has the beneficial effects that:
the application provides a coupling structure provides a brand-new connection structure, and first thread bush and second thread bush are detachable construction, and first thread bush, second thread bush, the equal joinable different diameter's of hooping body to realized the technological effect of a product butt joint multiple different pipe diameter body, be convenient for popularize and use in industry.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present application.
FIG. 2 is a schematic view of a first threaded sleeve connection of the present application;
FIG. 3 is a schematic view of a second threaded sleeve connection of the present application;
FIG. 4 is a schematic view of a connecting tube body of the present application;
in the figure, a first thread bush 1, a second thread bush 2, a coupling pipe body 3, a right top block 4, a guide rod 5, a spring 6, a left top block 7, a seal groove 8, a first inner seal plane 9 and a first inner conical connecting thread 10.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Examples
As shown in fig. 1, the variable diameter petroleum casing coupling provided by the embodiment comprises a coupling pipe body 3, wherein an annular groove is formed in the middle part of an inner hole of the coupling pipe body 3, and an annular pipe body top block is arranged in the annular groove;
the left end and the right end of the inner hole of the coupling pipe body 3 are respectively provided with a first inner connecting structure and a second inner connecting structure which are symmetrical in structure, and the first inner connecting structure comprises a first inner sealing plane 9 and first inner conical connecting threads 10 from outside to inside;
the second thread sleeve 2 is connected with the coupling pipe body 3 and comprises a first cylinder part and a first cone part which are connected from outside to inside, wherein the outer wall of the first cylinder part is in sealing connection with the first inner sealing plane 9, and the outer wall of the first cone part is in threaded connection with the first inner cone connecting thread 10;
the first thread bush 1 is connected with the second thread bush 2, and comprises a second cylinder part and a second cone part which are connected from outside to inside, wherein the outer wall of the second cylinder part is in sealing connection with the inner wall of the first cylinder part of the second thread bush 2, and the outer wall of the second cone part is in threaded connection with the inner wall of the first cone part of the second thread bush 2;
the first thread sleeve 1 inner side wall comprises a second inner sealing plane and a second inner conical connecting thread from outside to inside.
The application provides a coupling structure provides a brand-new connection structure, and first thread bush and second thread bush are detachable construction, and first thread bush, second thread bush, the equal joinable different diameter's of hooping body to realized the technological effect of a product butt joint multiple different pipe diameter body, be convenient for popularize and use in industry. FIG. 2 is a schematic view of a first threaded sleeve connection of the present application; FIG. 3 is a schematic view of a second threaded sleeve connection of the present application; FIG. 4 is a schematic view of a connecting tube body of the present application;
preferably, the body kicking block includes left kicking block 7 and the right kicking block 4 of controlling the interval setting, left kicking block 7 and right kicking block 4 structural symmetry set up and are provided with a plurality of springs 6 between the two.
When in connection, the end part of the pipe body is propped against the left jacking block 7 and the right jacking block 4, the spring 6 is extruded, and the sealing performance between the pipe body and the pipe body jacking block is improved by utilizing the reaction force of the spring 6.
Preferably, the plurality of springs 6 are uniformly arranged at intervals along the same circumference.
In addition, a plurality of guide rods 5 are uniformly arranged in the annular groove along the same circumference at intervals, and any guide rod 5 penetrates through the left top block 7 and the right top block 4 and is in sliding connection with the left top block 7 and the right top block 4.
In addition, the left end face of the left top block and the right end face of the right top block are both provided with annular sealing grooves 8, and sealing performance can be improved through annular convex blocks connected with the end parts of the pipe body through the sealing grooves 8.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The diameter-variable petroleum casing coupling is characterized by comprising a coupling pipe body (3), wherein an annular groove is formed in the middle of an inner hole of the coupling pipe body (3), and an annular pipe body top block is arranged in the annular groove; the coupling comprises a coupling body (3), wherein a first inner connecting structure and a second inner connecting structure which are symmetrical in structure are respectively arranged at the left end and the right end of an inner hole of the coupling body, and the first inner connecting structure comprises a first inner sealing plane (9) and first inner conical connecting threads (10) from outside to inside;
the second thread sleeve (2) comprises a first cylinder part and a first cone part which are connected from outside to inside, the outer wall of the first cylinder part is in sealing connection with the first inner sealing plane (9), and the outer wall of the first cone part is in threaded connection with the first inner cone connecting thread (10);
the first thread sleeve (1) comprises a second cylinder part and a second cone part which are connected from outside to inside, the outer wall of the second cylinder part is in sealing connection with the inner wall of the first cylinder part of the second thread sleeve (2), and the outer wall of the second cone part is in threaded connection with the inner wall of the first cone part of the second thread sleeve (2);
the inner side wall of the first thread sleeve (1) comprises a second inner sealing plane and a second inner conical connecting thread from outside to inside.
2. The variable diameter petroleum casing coupling according to claim 1, wherein the pipe body top block comprises a left top block (7) and a right top block (4) which are arranged at left and right intervals, and the left top block (7) and the right top block (4) are symmetrically arranged in a structure, and a plurality of springs (6) are arranged between the left top block and the right top block.
3. A variable diameter petroleum casing collar according to claim 2, characterised in that the plurality of springs (6) are evenly spaced along the same circumference.
4. A variable diameter petroleum casing collar according to claim 3, characterised in that a plurality of guide rods (5) are uniformly arranged in the annular groove at equal circumferential intervals, and any guide rod (5) passes through the left top block (7) and the right top block (4) and is in sliding connection with the left top block (7) and the right top block (4).
5. The variable diameter petroleum casing collar according to claim 4, wherein the left end face of the left top block (7) and the right end face of the right top block (4) are both provided with annular sealing grooves (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321261835.3U CN220580983U (en) | 2023-05-24 | 2023-05-24 | Diameter-variable petroleum casing coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321261835.3U CN220580983U (en) | 2023-05-24 | 2023-05-24 | Diameter-variable petroleum casing coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220580983U true CN220580983U (en) | 2024-03-12 |
Family
ID=90118994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321261835.3U Active CN220580983U (en) | 2023-05-24 | 2023-05-24 | Diameter-variable petroleum casing coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220580983U (en) |
-
2023
- 2023-05-24 CN CN202321261835.3U patent/CN220580983U/en active Active
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