CN203215258U - Double-layer seamless steel pipe - Google Patents
Double-layer seamless steel pipe Download PDFInfo
- Publication number
- CN203215258U CN203215258U CN 201320212542 CN201320212542U CN203215258U CN 203215258 U CN203215258 U CN 203215258U CN 201320212542 CN201320212542 CN 201320212542 CN 201320212542 U CN201320212542 U CN 201320212542U CN 203215258 U CN203215258 U CN 203215258U
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- CN
- China
- Prior art keywords
- steel pipe
- double
- seamless steel
- layer
- layer seamless
- 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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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a double-layer seamless steel pipe. The double-layer seamless steel pipe is characterized in that the double-layer seamless steel pipe is structurally a large steel pipe with a large diameter, a small steel pipe with a small diameter is coaxially arranged in the large steel pipe, a hollow layer is arranged between the large steel pipe and the small steel pipe, and a plurality of air holes are sequentially formed in the small steel pipe. By the structure of the hollow layer, the head end and the tail end of the large steel pipe and the head end and the tail end of the small steel pipe are connected with one another, and the middle of the large steel pipe is not in contact with the middle of the small steel pipe. According to the technical scheme, the double-layer seamless steel pipe has the advantages that the bearing capacity of the double-layer seamless steel pipe is improved to a certain extent, and the double-layer seamless steel pipe is not easy to bend or crack.
Description
Technical field
The utility model belongs to the seamless steel pipe field, is specifically related to a kind of double-deck seamless steel pipe.
Background technique
In the prior art, seamless steel pipe all adopts solid steel to make, if but solid steel are used for some building such as stride bridge etc., and its strength is not beaten, and occurs fracture easily.
Summary of the invention
The utility model then provides a kind of double-deck seamless steel pipe in order to solve the technical problem of mentioning in the background technique.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of double-deck seamless steel pipe, it is characterized in that: this structure is a large diameter big steel pipe, be provided with the little steel pipe of a minor diameter in described big steel pipe is coaxial, be provided with voided layer between described big steel pipe and the little steel pipe, be provided with several vents successively on the described little steel pipe.
Described voided layer structure is that big steel pipe is connected with little steel pipe head and the tail two ends, and big steel pipe does not contact with little steel pipe neutral position.
After adopting above technological scheme: adopt two-layer steel pipe to strengthen the ability to bear of steel pipe to a certain extent, and be not easy to occur the situation that bends and rupture.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Referring to a kind of double-deck seamless steel pipe of Fig. 1, be a large diameter big steel pipe 1, be provided with the little steel pipe 2 of a minor diameter in described big steel pipe 1 is coaxial, be provided with voided layer 3 between described big steel pipe 1 and the little steel 2, be provided with several vents 4 on the little steel pipe 2 successively.Voided layer 3 structures are that big steel pipe 1 is connected with little steel pipe 2 head and the tail two ends, and big steel pipe 1 does not contact with little steel pipe 2 neutral positions.
After adopting above technological scheme: adopt two-layer steel pipe to strengthen the ability to bear of steel pipe to a certain extent, and be not easy to occur the situation that bends and rupture, at little steel pipe vent is set simultaneously, improved the resistance to bending of steel pipe body.
Claims (2)
1. double-deck seamless steel pipe, it is characterized in that: this structure is a large diameter big steel pipe (1), be provided with the little steel pipe (2) of a minor diameter in described big steel pipe (1) is coaxial, be provided with voided layer (3) between described big steel pipe (1) and the little steel pipe (2), be provided with several vents (4) on the described little steel pipe (2) successively.
2. a kind of double-deck seamless steel pipe according to claim 1 is characterized in that: described voided layer (3) structure is that big steel pipe (1) is connected in twos with little steel pipe (2) head and the tail, and big steel pipe (1) does not contact with little steel pipe (2) neutral position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212542 CN203215258U (en) | 2013-04-24 | 2013-04-24 | Double-layer seamless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212542 CN203215258U (en) | 2013-04-24 | 2013-04-24 | Double-layer seamless steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203215258U true CN203215258U (en) | 2013-09-25 |
Family
ID=49204796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320212542 Expired - Fee Related CN203215258U (en) | 2013-04-24 | 2013-04-24 | Double-layer seamless steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203215258U (en) |
-
2013
- 2013-04-24 CN CN 201320212542 patent/CN203215258U/en not_active Expired - Fee Related
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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: 20130925 Termination date: 20140424 |