CN203961827U - Gasbag-type casing screw protector - Google Patents
Gasbag-type casing screw protector Download PDFInfo
- Publication number
- CN203961827U CN203961827U CN201420409623.XU CN201420409623U CN203961827U CN 203961827 U CN203961827 U CN 203961827U CN 201420409623 U CN201420409623 U CN 201420409623U CN 203961827 U CN203961827 U CN 203961827U
- Authority
- CN
- China
- Prior art keywords
- oversheath
- gasbag
- type casing
- casing screw
- ring
- 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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Abstract
The utility model discloses a kind of gasbag-type casing screw protector, comprise the interior carcass and the oversheath back-up ring that are easy to occur deformation after oversheath, pressure-bearing, described interior carcass and oversheath are integrated hermetically-sealed construction, and be formed with air cavity between the two, described air cavity has extended to form gas passage and has been provided with charging connector at top end in oversheath side, and described oversheath is formed with the groove that holds charging connector at charging connector place; Port, described oversheath one end is provided with the oversheath back-up ring for the protection of sleeve pipe front end screw thread.This gasbag-type casing screw protector can be without prejudice by protective casing screw thread, can also complete fast installation and removal, increases work efficiency.
Description
Technical field
The utility model relates to a kind of casing protection instrument, particularly relates to a kind of gasbag-type casing screw protector.
Background technology
It is plastics, outside for rigidity is compared with the structure of strong plastic that ordinary casing thread protector presents inside more, mainly in transport, on-the-spot unloading to protective casing screw thread in place, casing job.In sleeve hoisting operation, casing screw protector not only bears sleeve pipe gravity, frictional ground force, also can suffer colliding with of ramp rig floor corner angle, cause ordinary casing to arrive rig floor rear sleeve thread protector and be difficult to dismounting, and the method for dismounting such as the conventional hammer adopting knocks, gas welding cutting have not only extended the working time and also can cause thread damage, more obvious for this phenomenon of large scale sleeve pipe.Casing threads damage can increase sleeve pipe and be hampered, meet the probability of the complex situations such as card.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of gasbag-type casing screw protector, can not only be without prejudice by protective casing screw thread, can also complete fast installation and removal, increases work efficiency.
For this reason, the technical solution of the utility model is:
A kind of gasbag-type casing screw protector, comprise the interior carcass and the oversheath back-up ring that are easy to occur deformation after oversheath, pressure-bearing, described interior carcass and oversheath are integrated hermetically-sealed construction, and be formed with air cavity between the two, described air cavity has extended to form gas passage and has been provided with charging connector at top end in oversheath side, and described oversheath is formed with the groove that holds charging connector at charging connector place; Port, described oversheath one end is provided with the oversheath back-up ring for the protection of sleeve pipe front end screw thread.
Described interior carcass exists only in sleeve pipe contact side.
Described interior carcass contact sleeve pipe face is formed with screw thread, preferably trapezoidal thread, round thread.The bond strength that can strengthen this gasbag-type casing screw protector and casing threads, comes off while preventing from lifting by crane.
Described oversheath is formed with the screw thread for drop handle is installed away from oversheath back-up ring side.
The cross section of described oversheath back-up ring is annular, and its internal diameter is less than sleeve pipe external diameter.
Described oversheath back-up ring is hermetically-sealed construction, completely coated cannula tip.
Described oversheath internal diameter is than the large 0.1～0.5cm of sleeve pipe external diameter.
When installation, first this gasbag-type casing screw protector is set on sleeve pipe, charging connector is connected with air pump, open air pump and suppress to 0.6-0.8MPa, or be filled with compressed air by charging connector to air cavity, make interior carcass generation deformation clamping sleeve pipe.
When dismounting, only need to press the charging connector air in air cavity of can draining with hand, this gasbag-type casing screw protector and sleeve pipe are departed from.
This gasbag-type casing screw protector can be without prejudice by protective casing screw thread, can also complete fast installation and removal, increases work efficiency.
Brief description of the drawings
Fig. 1 is the sectional drawing of an embodiment of the utility model;
Fig. 2 is the sectional drawing of another embodiment of the utility model.
Detailed description of the invention
Below in conjunction with embodiment, structure of the present utility model is described in detail.
As shown in Figure 1, a kind of gasbag-type casing screw protector, comprise the interior carcass 4 and the oversheath back-up ring 5 that are easy to occur deformation after oversheath 2, pressure-bearing, the hermetically-sealed construction that interior carcass 4 and oversheath 2 are formed in one, and between is formed with air cavity 1, air cavity 1 has extended to form gas passage and has been provided with charging connector 7 at top end in oversheath 2 sides, and oversheath 2 is formed with the groove 6 that holds charging connector 7 at charging connector 7 places; Oversheath 2 ports, one end are provided with the oversheath back-up ring 5 for the protection of sleeve pipe front end screw thread.
Described interior carcass 4 exists only in sleeve pipe contact side.
Described interior carcass 4 is selected elastically-deformable material can be occurred.
In a kind of embodiment of the present utility model, interior carcass 4 contacts box face and is formed with screw thread 3, preferably trapezoidal thread or round thread.The bond strength that can strengthen this gasbag-type casing screw protector and casing threads, comes off while preventing from lifting by crane.
In a kind of embodiment of the present utility model, described oversheath 2 is formed with the screw thread for drop handle 8 is installed away from oversheath back-up ring 5 sides.Facilitate thread protector to hang lower rig floor.
In a kind of embodiment of the present utility model, the cross section of described oversheath back-up ring 5 is annular, and its internal diameter is less than sleeve pipe external diameter.
In a kind of embodiment of the present utility model, described oversheath back-up ring 5 is hermetically-sealed construction, completely coated cannula tip, as shown in Figure 2.
Described oversheath internal diameter is than the large 0.1～0.5cm of sleeve pipe external diameter.Can ensure that this gasbag-type casing screw protector is arranged on sleeve pipe easily, can ensure that again interior carcass less deformation occurs and just can clamp with sleeve pipe.
The oversheath of this gasbag-type casing screw protector is selected wear-resisting plastic material, can protect interior carcass injury-free, extends product application life.And interior carcass is selected rubber type of material, after pressure-bearing, be easy to occur deformation.
Claims (7)
1. a gasbag-type casing screw protector, it is characterized in that: comprise the interior carcass (4) and the oversheath back-up ring (5) that are easy to occur deformation after oversheath (2), pressure-bearing, described interior carcass (4) is integrated hermetically-sealed construction with oversheath (2), and be formed with air cavity (1) between the two, described air cavity (1) has extended to form gas passage and has been provided with charging connector (7) at top end in oversheath (2) side, and described oversheath (2) locates to be formed with the groove (6) that holds charging connector (7) at charging connector (7); Described oversheath (2) port, one end is provided with the oversheath back-up ring (5) for the protection of sleeve pipe front end screw thread.
2. gasbag-type casing screw protector as claimed in claim 1, is characterized in that: described interior carcass (4) exists only in sleeve pipe contact side.
3. gasbag-type casing screw protector as claimed in claim 1, is characterized in that: described interior carcass (4) contact box face is formed with screw thread (3).
4. gasbag-type casing screw protector as claimed in claim 1, is characterized in that: described oversheath (2) is formed with the screw thread for drop handle (8) are installed away from oversheath back-up ring (5) side.
5. gasbag-type casing screw protector as claimed in claim 1, is characterized in that: the cross section of described oversheath back-up ring (5) is annular, and its internal diameter is less than sleeve pipe external diameter.
6. gasbag-type casing screw protector as claimed in claim 1, is characterized in that: described oversheath back-up ring (5) is hermetically-sealed construction, completely coated cannula tip.
7. gasbag-type casing screw protector as claimed in claim 1, is characterized in that: described oversheath internal diameter is than the large 0.1～0.5cm of sleeve pipe external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409623.XU CN203961827U (en) | 2014-07-23 | 2014-07-23 | Gasbag-type casing screw protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409623.XU CN203961827U (en) | 2014-07-23 | 2014-07-23 | Gasbag-type casing screw protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203961827U true CN203961827U (en) | 2014-11-26 |
Family
ID=51922426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420409623.XU Expired - Fee Related CN203961827U (en) | 2014-07-23 | 2014-07-23 | Gasbag-type casing screw protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203961827U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533186A (en) * | 2018-03-04 | 2018-09-14 | 李翠芳 | A kind of adaptive adjustment well casing |
| GB2578825A (en) * | 2018-11-06 | 2020-05-27 | Bewi Energy As | Protector for the ends of an elongate member |
-
2014
- 2014-07-23 CN CN201420409623.XU patent/CN203961827U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533186A (en) * | 2018-03-04 | 2018-09-14 | 李翠芳 | A kind of adaptive adjustment well casing |
| GB2578825A (en) * | 2018-11-06 | 2020-05-27 | Bewi Energy As | Protector for the ends of an elongate member |
| GB2578825B (en) * | 2018-11-06 | 2023-01-25 | Bewi Energy As | Protector for the ends of an elongate member |
| US12000520B2 (en) | 2018-11-06 | 2024-06-04 | Bewi Energy As | Protector for the ends of an elongate member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210107 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106, Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 |