CN2125689U - Fast dismounting protecting wire - Google Patents
Fast dismounting protecting wire Download PDFInfo
- Publication number
- CN2125689U CN2125689U CN 92225968 CN92225968U CN2125689U CN 2125689 U CN2125689 U CN 2125689U CN 92225968 CN92225968 CN 92225968 CN 92225968 U CN92225968 U CN 92225968U CN 2125689 U CN2125689 U CN 2125689U
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- housing
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- core skeleton
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Abstract
The utility model relates to a fast assembling and disassembling protecting wire which is a tool used for protecting the outer threads of petroleum pipes. The utility model is composed of a housing and a cylindrical cam switching mechanism. Compared with the original fast assembling and disassembling protecting wire, the utility model is characterized in that the housing is provided with a steel core skeleton, and the inner surface of the steel core skeleton and the outer surface of the steel core skeleton are coated with a non-metallic material, so when the intensity of the housing is not decreased, the weight of the housing is lightened, and the shape is reduced. The utility model has the advantages of high assembling and disassembling speed, convenient use, long lifetime, low manufacturing cost, etc. The use of the fast assembling and disassembling protecting wire has great function for increasing the speed of the lower sleeve pipe of petroleum well cementing, assuring the well cementing quality and reducing accidents under wells.
Description
The utility model is applied to the petroleum exploration and development technical field, is protection oil pipe, the externally threaded a kind of instrument of sleeve pipe.
In the oil development, there is screw thread at oil pipe, sleeve pipe two ends commonly used, and wherein an end is an external screw thread.The external screw thread of in use may damaging.In order to protect the external screw thread of oil pipe, sleeve pipe, generally adopt cylinder thread protector made of iron.When bumping, this thread protector deforms, and just is difficult to thread protector is unloaded down.Under the normal condition, unloading a thread protector needs the 30-35 time in second.If thread protector generation deformation may need a few minutes, even just can unload down in tens minutes.In well cementation setting of casing process, in order to guarantee wellbore quality, down-hole accident does not take place, cased speed is a very important factor.In order to strive for the setting of casing time, the time of unloading casing screw protector is very important.Can reduce to 3-5 second if unload the time of a thread protector, 3000 meters dark oil wells of a bite, the used time of setting of casing can shorten two hours.To guaranteeing cementing quality, preventing down-hole accident has great role like this.Someone designed the thread protector that can load and unload fast.The housing of this quick loading and unloading thread protector is by single material, makes as polyamine fat.Shell inner surface has and the corresponding internal thread of casing threads.What open-and-close mechanism adopted is cylindrical cam mechanism.Shortcoming is: in order to guarantee the intensity of housing, the thickness of housing is made thicklyer, and its appearance and size is bigger.Inevitably brought weight heavier, used inconvenience, labor strength is big, shortcomings such as manufacturing cost height.
The purpose of this utility model is, under the situation of the intensity that does not reduce quick loading and unloading thread protector housing, changes the structure of its housing, alleviates its weight, dwindles appearance and size, reduces volume, reduces manufacturing cost.
The utility model has adopted the cylindrical cam open-and-close mechanism of original quick loading and unloading thread protector.Its technical characterictic is that housing has adopted the steel core skeleton.Surfaces externally and internally at the steel core skeleton is surrounded by nonmetals, as rubber, plastics, polyamine fat etc.The thickness of nonmetals is between the 5-30 millimeter.Inner surface at housing has with the identical internal thread of original technology.
For the dowel fixes with the cylindrical cam open-and-close mechanism get solid and reliable, can be on the steel core skeleton with dowel fixes.
Adopt the housing that is surrounded by nonmetals inside and outside the steel core skeleton, make loading and unloading thread protector fast not only guarantee the intensity of housing, and appearance and size and volume reduce, weight saving has reduced the consumption of nonmetals, has reduced manufacturing cost.
Description of drawings:
Accompanying drawing 1 is the sectional drawing that the utility model loads and unloads thread protector fast.Steel core skeleton (1), handle (2), housing (3), camshaft (4).
Accompanying drawing 2 is right sectional views of Fig. 1.Steel core skeleton (1), handle (2), housing (3), camshaft (4), pin (5).
The process of being used in combination further specifies its structure. When on carry and during rotary handle (2), drive camshaft (4) rotation, camshaft (4) is upper with helicla flute, pin (5) outwards slides along helicla flute, so that the slotting in middle of housing (3) opens, the internal thread diameter of loading and unloading thread protector just can successfully be taken off quick loading and unloading thread protector greater than the external thread diameter of sleeve pipe fast. Otherwise when loading onto quick loading and unloading thread protector, operating process is opposite, and principle is identical.
1: one of embodiment is the loading and unloading thread protector fast, is made up of housing (3), cam open-and-close mechanism, and housing (3) is to be made cylindricly by the steel plate of 2 millimeters thick, and the centre has cracks.Surfaces externally and internally is surrounded by the rubber of 10 millimeters thick, and the inner surface of rubber has and the corresponding internal thread of sleeve pipe.
2: one of embodiment load and unload thread protector fast, formed by housing (3), cam open-and-close mechanism, housing (3) is to make cylindric by the steel plate of 2 millimeters thick, the two ends of steel plate are rolled into two little cylinders, pin (5) is fixed in the little cylinder at steel core skeleton (1) two ends, and the surfaces externally and internally of steel core skeleton (1) is surrounded by polyamine fat material.
Claims (4)
1, a kind of quick loading and unloading thread protector is made up of housing and cylindrical cam open-and-close mechanism, and it is characterized in that: housing has the steel core skeleton, and the surfaces externally and internally of steel core skeleton is surrounded by nonmetals, and the thickness of nonmetals is between the 5-30 millimeter.
2, quick loading and unloading thread protector as claimed in claim 1, it is characterized in that: the surfaces externally and internally of steel core skeleton is surrounded by polyamine fat, and its thickness is between the 5-30 millimeter.
3, quick loading and unloading thread protector as claimed in claim 1, it is characterized in that: the surfaces externally and internally of steel core skeleton is surrounded by rubber, and its thickness is between the 5-30 millimeter.
4, as claim 1 or 2 or 3 described quick loading and unloading thread protectors, it is characterized in that: dowel fixes is on the steel core skeleton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92225968 CN2125689U (en) | 1992-07-02 | 1992-07-02 | Fast dismounting protecting wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92225968 CN2125689U (en) | 1992-07-02 | 1992-07-02 | Fast dismounting protecting wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2125689U true CN2125689U (en) | 1992-12-23 |
Family
ID=4968056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92225968 Granted CN2125689U (en) | 1992-07-02 | 1992-07-02 | Fast dismounting protecting wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2125689U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470194A (en) * | 2013-09-07 | 2013-12-25 | 中国石油集团西部钻探工程有限公司 | Sleeve female thread protection device easy to assemble and disassemble |
| CN103917735A (en) * | 2011-08-23 | 2014-07-09 | 钻科专利及科技公司 | Universal pipe thread protector |
-
1992
- 1992-07-02 CN CN 92225968 patent/CN2125689U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103917735A (en) * | 2011-08-23 | 2014-07-09 | 钻科专利及科技公司 | Universal pipe thread protector |
| CN103470194A (en) * | 2013-09-07 | 2013-12-25 | 中国石油集团西部钻探工程有限公司 | Sleeve female thread protection device easy to assemble and disassemble |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |