CN221568371U - Novel airtight special knot screw thread of petroleum casing pipe - Google Patents
Novel airtight special knot screw thread of petroleum casing pipe Download PDFInfo
- Publication number
- CN221568371U CN221568371U CN202323573900.9U CN202323573900U CN221568371U CN 221568371 U CN221568371 U CN 221568371U CN 202323573900 U CN202323573900 U CN 202323573900U CN 221568371 U CN221568371 U CN 221568371U
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- China
- Prior art keywords
- sealing
- thread
- threaded rod
- sleeve
- casing
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- Expired - Fee Related
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Abstract
The utility model belongs to the field of petroleum casings, and provides a novel petroleum casing gas-tight seal special fastening thread, which comprises an outer casing and an inner casing, wherein the outer casing and the inner casing are mutually matched, thread grooves are symmetrically formed in two sides of the inner part of the outer casing, two groups of sealing threads are uniformly formed on one side of the inner casing, a sealing ring is arranged between the two groups of sealing threads, and the sealing ring is mutually attached to the inner wall of the outer casing; according to the utility model, the sealing air bag is sleeved on the outer side of the inner sleeve, the threaded rod is rotated after the sleeve is sleeved, the threaded rod can move up and down when rotating by utilizing the internal threaded hole, the sealing clamping plate is driven to move when the threaded rod moves, the sealing air bag is clamped by the sealing clamping plate to wrap the outer side of the inner sleeve, and the sealing air bag and the sealing clamping plate are matched with each other, so that the joint of the outer sleeve and the inner sleeve can be sealed from the outer side, the inner sleeve can be fixed, and the stability of the connection between the outer sleeve and the inner sleeve is improved.
Description
Technical Field
The utility model belongs to the field of petroleum casing pipes, and particularly relates to a novel petroleum casing pipe air-tight seal special buckling thread.
Background
The petroleum casing pipe is airtight and special in thread, and is one special thread structure for petroleum well casing pipe connection. In petroleum exploration and production, casing is an important conduit for fixed drilling and provides an airtight seal to ensure that underground oil and gas do not leak;
Most of the existing sealing special fastening threads are single long-section threads for sealing, and cannot be used for sealing by two-section threads, so that the sealing effect of the inner side of the outer sleeve and the inner sleeve is reduced; and the existing special sealing threads cannot seal the junction of the outer sleeve and the inner sleeve from the outer side, and cannot fix the inner sleeve, so that the stability of the connection between the outer sleeve and the inner sleeve is reduced.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a novel petroleum casing gas seal special buckling thread, which solves the problems that most of the prior art is single long-section threads for sealing, the joint of an external casing and an internal casing cannot be sealed from the outside, and the like.
The utility model provides a novel airtight special knot screw thread of petroleum casing, includes outer tube and interior sleeve pipe, outer tube and interior sleeve pipe looks adaptation each other, the inside bilateral symmetry of outer tube is provided with the thread groove, one side of interior sleeve pipe evenly is provided with two sets of sealed screw threads, two sets of be provided with the sealing washer between the sealed screw thread, and the sealing washer is laminated with the inner wall of outer tube each other, the bilateral symmetry of outer tube is provided with can consolidate sealed seal assembly.
Preferably, the inboard of seal assembly is provided with sealed gasbag, and sealed gasbag cover is established in the sheathed tube outside, the intermediate position department symmetry of seal assembly outside top and bottom is provided with the threaded rod, and the threaded rod extends to the inside of seal assembly, the intermediate position department symmetry of seal assembly inside top and bottom is provided with the internal thread hole, and internal thread hole and threaded rod looks adaptation, two sets of the position department that the threaded rod is close to each other is provided with sealing splint.
Preferably, the sealing thread and the thread groove are both trapezoid in shape, and the sealing thread and the thread groove are meshed with each other.
Preferably, one end of the threaded rod, which is far away from the sealing clamping plate, is fixedly connected with a rotating handle, and the outer side of the rotating handle is provided with anti-skid patterns.
Preferably, the bottom outside the threaded rod is sleeved with a bearing, and the bearing is connected with the sealing clamping plate.
Preferably, the shape of the sealing splint is made of an arc structure, and the sealing splint is mutually attached to the outer side of the sealing air bag.
Compared with the prior art, the utility model has the following beneficial effects:
1. According to the utility model, the inner sleeve is rotated to drive the sealing threads to rotate into the thread grooves, two groups of sealing threads are used for sealing simultaneously from two sides during rotation, a sealing ring is added between the two groups of sealing threads, and the sealing ring is respectively and tightly attached to the outer sleeve and the inner sleeve, so that the sealing effect of the inner sides of the outer sleeve and the inner sleeve is further improved.
2. According to the utility model, the sealing air bag is sleeved on the outer side of the inner sleeve, the threaded rod is rotated after the sleeve is sleeved, the threaded rod can move up and down when rotating by utilizing the internal threaded hole, the sealing clamping plate is driven to move when the threaded rod moves, the sealing air bag is clamped by the sealing clamping plate to wrap the outer side of the inner sleeve, and the sealing air bag and the sealing clamping plate are matched with each other, so that the joint of the outer sleeve and the inner sleeve can be sealed from the outer side, the inner sleeve can be fixed, and the stability of the connection between the outer sleeve and the inner sleeve is improved.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;
FIG. 2 is a schematic side cross-sectional view of the seal assembly of the present utility model;
Fig. 3 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.
In the figure: 1. an outer sleeve; 10. an inner sleeve; 11. a seal ring; 12. a thread groove; 13. sealing the thread; 14. sealing grooves; 2. a seal assembly; 20. a threaded rod; 21. sealing the air bag; 22. sealing splints; 23. an internal threaded hole.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.
As shown in fig. 1 to 3:
Embodiment one: the utility model provides a novel petroleum casing gas seal special buckling thread, which comprises an outer casing 1 and an inner casing 10, wherein the outer casing 1 and the inner casing 10 are mutually matched, thread grooves 12 are symmetrically formed in two sides of the inner part of the outer casing 1, two groups of sealing threads 13 are uniformly formed in one side of the inner casing 10, a sealing ring 11 is sleeved between the two groups of sealing threads 13, the sealing ring 11 is mutually attached to the inner wall of the outer casing 1, and sealing assemblies 2 capable of reinforcing and sealing are symmetrically and fixedly connected to two sides of the outer casing 1.
Preferably, the sealing thread 13 and the thread groove 12 are both in a trapezoid structure, and the sealing thread 13 and the thread groove 12 are engaged with each other, so that the effect of sealing the main body is improved by using the trapezoid structure of the sealing thread 13 and the thread groove 12.
From the above, when in use, the outer sleeve 1 and the inner sleeve 10 are firstly lifted, the inner sleeve 10 is rotated after the lifting, the sealing threads 13 are driven to rotate to the inside of the thread groove 12, the two groups of sealing threads 13 are respectively used for sealing from two sides at the same time during rotation, the sealing ring 11 is added between the two groups of sealing threads 13, the sealing ring 11 is respectively tightly attached to the outer sleeve 1 and the inner sleeve 10, and the sealing effect of the inner sides of the outer sleeve 1 and the inner sleeve 10 is further improved.
Embodiment two: the present embodiment is basically the same as the previous embodiment, except that the inner side of the sealing assembly 2 is provided with a sealing air bag 21, the sealing air bag 21 is sleeved on the outer side of the inner sleeve 10, the middle positions of the top and the bottom of the outer side of the sealing assembly 2 are symmetrically inserted with threaded rods 20, the threaded rods 20 extend to the inside of the sealing assembly 2, the middle positions of the top and the bottom of the inside of the sealing assembly 2 are symmetrically provided with internal threaded holes 23, the internal threaded holes 23 are mutually matched with the threaded rods 20, and the positions of the two groups of threaded rods 20 close to each other are rotationally connected with sealing clamping plates 22.
Preferably, one end of the threaded rod 20 far away from the sealing clamping plate 22 is fixedly connected with a rotating handle, and the outer side of the rotating handle is provided with anti-skid patterns, so that an operator can more conveniently rotate the threaded rod 20 by using the rotating handle.
Preferably, the bottom of the outer side of the threaded rod 20 is sleeved with a bearing, and the bearing is connected with the sealing clamping plate 22, so that the sealing clamping plate 22 cannot rotate along with the threaded rod 20 when the threaded rod 20 rotates.
Preferably, the sealing jaw 22 is formed in an arc-shaped structure, and the sealing jaw 22 is attached to the outer side of the sealing airbag 21, so that the sealing jaw 22 can be tightly attached to the outer side of the sealing airbag 21 by using the arc-shaped structure.
From the above, after the inner sleeve 10 is installed, the sealing airbag 21 is first sleeved on the outer side of the inner sleeve 10, the threaded rod 20 is rotated after the sleeve is completed, the threaded rod 20 can move up and down when rotating by the aid of the internal threaded hole 23, the sealing clamping plate 22 is driven to move when the threaded rod 20 moves, the sealing airbag 21 is clamped by the sealing clamping plate 22 to wrap the outer side of the inner sleeve 10, the sealing airbag 21 and the sealing clamping plate 22 are matched with each other, the joint of the outer sleeve 1 and the inner sleeve 10 can be sealed from the outer side, the inner sleeve 10 can be fixed, and the stability of connection between the outer sleeve 1 and the inner sleeve 10 is improved.
Working principle: when the sealing device is used, firstly, the outer sleeve 1 and the inner sleeve 10 are lifted, the inner sleeve 10 is rotated after the outer sleeve is lifted to drive the sealing threads 13 to rotate to the inside of the thread groove 12, two groups of sealing threads 13 are used for sealing respectively from two sides at the same time during rotation, a sealing ring 11 is added between the two groups of sealing threads 13, and the sealing ring 11 is respectively tightly attached to the outer sleeve 1 and the inner sleeve 10, so that the sealing effect of the inner sides of the outer sleeve 1 and the inner sleeve 10 is further improved; after the inner sleeve 10 is installed, firstly, the sealing air bag 21 is sleeved on the outer side of the inner sleeve 10, the threaded rod 20 is rotated after the sleeve is sleeved, the threaded rod 20 can move up and down when rotating by the aid of the internal threaded hole 23, the sealing clamping plate 22 is driven to move when the threaded rod 20 moves, the sealing air bag 21 is clamped by the sealing clamping plate 22 to wrap the outer side of the inner sleeve 10, the sealing air bag 21 and the sealing clamping plate 22 are matched with each other, the joint of the outer sleeve 1 and the inner sleeve 10 can be sealed from the outer side, the inner sleeve 10 can be fixed, and the stability of connection between the outer sleeve 1 and the inner sleeve 10 is improved.
While embodiments of the present utility model have been shown and described above for purposes of illustration and description, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (6)
1. The utility model provides a novel airtight special knot screw thread of petroleum casing pipe which characterized in that: including outer tube (1) and interior sleeve pipe (10), outer tube (1) and interior sleeve pipe (10) looks adaptation each other, the inside bilateral symmetry of outer tube (1) is provided with thread groove (12), one side of interior sleeve pipe (10) evenly is provided with two sets of seal screw thread (13), two sets of be provided with sealing washer (11) between seal screw thread (13), and sealing washer (11) are laminated each other with the inner wall of outer tube (1), the bilateral symmetry of outer tube (1) is provided with can consolidate sealed seal assembly (2).
2. The novel airtight special buckling thread for petroleum casing pipe, as set forth in claim 1, is characterized in that: the inside of sealing component (2) is provided with sealed gasbag (21), and the outside of sleeve pipe (10) is established to sealed gasbag (21) cover, the intermediate position department symmetry of sealing component (2) outside top and bottom is provided with threaded rod (20), and threaded rod (20) extend to the inside of sealing component (2), the intermediate position department symmetry of sealing component (2) inside top and bottom is provided with internal thread hole (23), and internal thread hole (23) and threaded rod (20) looks adaptation, two sets of the position department that threaded rod (20) are close to each other is provided with sealing splint (22).
3. The novel airtight special buckling thread for petroleum casing pipe, as set forth in claim 1, is characterized in that: the sealing thread (13) and the thread groove (12) are of trapezoid structures, and the sealing thread (13) and the thread groove (12) are meshed with each other.
4. The novel airtight special buckling thread for petroleum casing pipe, as set forth in claim 2, is characterized in that: one end of the threaded rod (20) far away from the sealing clamping plate (22) is fixedly connected with a rotating handle, and the outer side of the rotating handle is provided with anti-skid patterns.
5. The novel airtight special buckling thread for petroleum casing pipe, as set forth in claim 2, is characterized in that: the bottom outside the threaded rod (20) is sleeved with a bearing, and the bearing is connected with a sealing clamping plate (22) mutually.
6. The novel airtight special buckling thread for petroleum casing pipe, as set forth in claim 2, is characterized in that: the sealing clamp plate (22) is made of an arc-shaped structure, and the sealing clamp plate (22) is mutually attached to the outer side of the sealing air bag (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323573900.9U CN221568371U (en) | 2023-12-27 | 2023-12-27 | Novel airtight special knot screw thread of petroleum casing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323573900.9U CN221568371U (en) | 2023-12-27 | 2023-12-27 | Novel airtight special knot screw thread of petroleum casing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221568371U true CN221568371U (en) | 2024-08-20 |
Family
ID=92290273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323573900.9U Expired - Fee Related CN221568371U (en) | 2023-12-27 | 2023-12-27 | Novel airtight special knot screw thread of petroleum casing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221568371U (en) |
-
2023
- 2023-12-27 CN CN202323573900.9U patent/CN221568371U/en not_active Expired - Fee Related
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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: 20240820 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |