CN102295102A - Internal thread protector provided with concave back cover - Google Patents
Internal thread protector provided with concave back cover Download PDFInfo
- Publication number
- CN102295102A CN102295102A CN2011101633313A CN201110163331A CN102295102A CN 102295102 A CN102295102 A CN 102295102A CN 2011101633313 A CN2011101633313 A CN 2011101633313A CN 201110163331 A CN201110163331 A CN 201110163331A CN 102295102 A CN102295102 A CN 102295102A
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- CN
- China
- Prior art keywords
- back cover
- protector
- internal thread
- thread protector
- steel
- 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.)
- Pending
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- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
The invention discloses an internal thread protector provided with a concave back cover, and relates to a protective suite of a steel pipe head. The internal thread protector comprises a steel jacket and a plastic lining arranged outside the steel jacket, wherein the top part of the steel jacket is provided with an outward-stretching circular arc; a shoulder is arranged between the circular arc and the plastic lining; a back cover sunk toward the bottom part is arranged on the plastic lining at the bottom of the steel jacket; and the outer part of the plastic lining is provided with screw threads. The internal thread protector has the following advantages that: a protective cap is sleeved on the end part of a steel pipe so that the end part of a lifting tool is buckled at the concave part of the back cover of the protector and the protector cannot fall off during lifting, thus the lifting process becomes safe and reliable.
Description
Technical field
The present invention relates to a kind of protection external member of steel pipe tube head.
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.Also have a kind of steel that installs plastics envelope lining outside steel bushing additional to mould in conjunction with pipe cap, because the buffer action of plastics, the protection effect is more satisfactory.In order to prevent that foreign material from entering in the steel pipe, generally install back cover additional, but because when lifting steel pipes was carried, because suspender need be connected to tube end, often existing protector can't lift in the protector end.
Summary of the invention
The invention provides a kind of internal-thread protector that has recessed formula back cover, make the steel pipe that protector is installed play the tube head protective effect, and lifting is convenient.
In order to achieve the above object, the technical scheme taked of the present invention is:
A kind of internal-thread protector that has recessed formula back cover; comprise the outer plastic inner lining that is provided with of steel bushing and steel bushing; the steel bushing top is provided with outside stretching circular arc; be provided with shoulder between circular arc and the plastic inner lining; it is characterized in that: described steel bushing bottom plastic liner is provided with to the recessed back cover in bottom, and described plastic inner lining outside is provided with screw thread.
The above back cover is located near the protector bottom position, and its degree of depth is 1/4 to 1/5 of a protector overall depth.
The invention has the beneficial effects as follows that tin hat is socketed in steel tube end part, make the lifting device end be connected to the back cover recess of protector, can not come off during lifting, safe and reliable.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1. plastic inner lining; 2. steel bushing; 3. shoulder; 4. back cover; 5. screw thread.
The specific embodiment
By accompanying drawing 1 as can be known; the present invention includes steel bushing 2 and the steel bushing 2 outer plastic inner linings 1 that are provided with; steel bushing 2 tops are provided with outside stretching circular arc; be provided with shoulder 3 between circular arc and the plastic inner lining 1; described steel bushing 2 bottom plastic liners 1 are provided with to the recessed back cover 4 in bottom; described plastic inner lining 1 outside is provided with screw thread 5, is used for and the steel pipe protected is connected.Described back cover 4 is located near the protector bottom position, and its degree of depth is 1/4 to 1/5 of a protector overall depth, when lifting, makes suspender more fastening like this.
Should be noted that embodiment of the present invention only is its optimal way, only is conspicuous change to belonging to technical solution of the present invention, all should belong within protection scope of the present invention.
Claims (2)
1. internal-thread protector that has recessed formula back cover; comprise the outer plastic inner lining that is provided with of steel bushing and steel bushing; the steel bushing top is provided with outside stretching circular arc; be provided with shoulder between circular arc and the plastic inner lining; it is characterized in that: described steel bushing bottom plastic liner is provided with to the recessed back cover in bottom, and described plastic inner lining outside is provided with screw thread.
2. the internal-thread protector that has recessed formula back cover according to claim 1 is characterized in that: described back cover is located near the protector bottom position, and its degree of depth is 1/4 to 1/5 of a protector overall depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101633313A CN102295102A (en) | 2011-06-17 | 2011-06-17 | Internal thread protector provided with concave back cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101633313A CN102295102A (en) | 2011-06-17 | 2011-06-17 | Internal thread protector provided with concave back cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102295102A true CN102295102A (en) | 2011-12-28 |
Family
ID=45355830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101633313A Pending CN102295102A (en) | 2011-06-17 | 2011-06-17 | Internal thread protector provided with concave back cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102295102A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642665A (en) * | 2012-04-27 | 2012-08-22 | 天津市津英达塑料制品有限责任公司 | Internal thread protector with taper |
-
2011
- 2011-06-17 CN CN2011101633313A patent/CN102295102A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642665A (en) * | 2012-04-27 | 2012-08-22 | 天津市津英达塑料制品有限责任公司 | Internal thread protector with taper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111228 |