CN202529316U - Steel jacket for internal thread protector - Google Patents
Steel jacket for internal thread protector Download PDFInfo
- Publication number
- CN202529316U CN202529316U CN2012201527827U CN201220152782U CN202529316U CN 202529316 U CN202529316 U CN 202529316U CN 2012201527827 U CN2012201527827 U CN 2012201527827U CN 201220152782 U CN201220152782 U CN 201220152782U CN 202529316 U CN202529316 U CN 202529316U
- Authority
- CN
- China
- Prior art keywords
- steel jacket
- steel bushing
- steel
- thread protector
- wall
- 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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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a steel jacket for an internal thread protector and relates to a protection jacket for a tube head of a steel tube. The steel jacket comprises a circular tubular steel jacket body; and 3 to 6 dovetail grooves are formed on the outer wall of the steel jacket body in a horizontal direction in an annular shape. The steel jacket has the advantages that the dovetail grooves are formed on the outer wall of the steel jacket body, so that the steel jacket and a plastic liner which is formed outside the steel jacket body through injection can be tightly combined; and during further processing or using, the phenomenon that the steel jacket is separated from the plastic liner to fall off can be avoided.
Description
Technical field
The utility model relates to a kind of protection external member of steel pipe tube head, is used for the protection of petroleum casing pipe and all kinds of tubing end thread, relates in particular to a kind of steel and moulds the used steel bushing of complex protection device.
Background technology
Steel pipe very easily causes damage to pipe end in transportation, for tube head is protected, generally at pipe end suit pipe cap, also is protector.Past is mostly used the plastics pipe cap, but in use very easily damaged, especially more fragile in cold season in winter, result of use is undesirable.Used the metal pipe cap afterwards in addition, though durable, requirement on machining accuracy is high, otherwise can't supportingly use.Now also there is steel to mould compound protector, but the combination of steel bushing and plastic lining undertighten often.
Summary of the invention
The utility model provides a kind of internal-thread protector steel bushing, can be closely as one with plastic lining, can not cause steel bushing to separate with plastic lining and come off.
In order to achieve the above object, the technical scheme taked of the utility model is:
A kind of internal-thread protector steel bushing comprises a round tubular steel bushing body, it is characterized in that: said steel bushing body outer wall laterally is provided with 3-6 bar dovetail furrow.
The above dovetail furrow is provided with at steel bushing body outer wall ringwise.
The above dovetail furrow is provided with 5.
The beneficial effect of the utility model is, owing to be provided with dovetail furrow at steel bushing body outer wall, can make at the plastic lining of this external injection mo(u)lding of steel bushing and combine closely, and in further processing or when using, can not cause steel bushing to separate with plastic lining and come off.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1. steel bushing body; 2. dovetail furrow.
The specific embodiment
Can be known that by accompanying drawing the utility model comprises a round tubular steel bushing body 1, said steel bushing body 1 outer wall laterally is provided with dovetail furrow 2, and described dovetail furrow 2 is provided with the 3-6 bar ringwise at steel bushing body 1 outer wall, preferably is provided with 5.Outside steel bushing body 1, behind the injection-molded plastic lining, further be processed into screw thread, use, can play a protective role the steel pipe negative thread to cooperate the steel pipe negative thread at the plastic lining outer wall.Owing to be provided with dovetail furrow 2 at steel bushing body 1 outer wall, the plastic lining of injection mo(u)lding outside steel bushing body 1 is combined closely, when further processing or using, can not cause steel bushing to separate and come off with plastic lining.
Claims (3)
1. an internal-thread protector steel bushing comprises a round tubular steel bushing body, it is characterized in that: said steel bushing body outer wall laterally is provided with 3-6 bar dovetail furrow.
2. internal-thread protector steel bushing according to claim 1 is characterized in that: said dovetail furrow is provided with at steel bushing body outer wall ringwise.
3. internal-thread protector steel bushing according to claim 1 is characterized in that: said dovetail furrow is provided with 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201527827U CN202529316U (en) | 2012-04-12 | 2012-04-12 | Steel jacket for internal thread protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201527827U CN202529316U (en) | 2012-04-12 | 2012-04-12 | Steel jacket for internal thread protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202529316U true CN202529316U (en) | 2012-11-14 |
Family
ID=47130514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201527827U Expired - Fee Related CN202529316U (en) | 2012-04-12 | 2012-04-12 | Steel jacket for internal thread protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202529316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552931A (en) * | 2013-10-27 | 2015-04-29 | 天津市津英达塑料制品有限责任公司 | Steel-plastic fixed connection device for thread protector |
-
2012
- 2012-04-12 CN CN2012201527827U patent/CN202529316U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552931A (en) * | 2013-10-27 | 2015-04-29 | 天津市津英达塑料制品有限责任公司 | Steel-plastic fixed connection device for thread protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20140412 |