CN105065850A - Compound square tube - Google Patents
Compound square tube Download PDFInfo
- Publication number
- CN105065850A CN105065850A CN201510538105.7A CN201510538105A CN105065850A CN 105065850 A CN105065850 A CN 105065850A CN 201510538105 A CN201510538105 A CN 201510538105A CN 105065850 A CN105065850 A CN 105065850A
- Authority
- CN
- China
- Prior art keywords
- square
- hole
- steel pipe
- cylindrical
- cylindrical extension
- 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
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a compound square tube. The compound square tube comprises a steel tube body, and the cross section of the steel tube body is of a square structure. Connection tables are arranged at the two ends of the steel tube body. A plurality of connection holes are formed in each connection table. One of the connection tables is provided with a cylindrical extension section, an external thread is arranged at the outer edge of the cylindrical extension section, and a square through hole is formed in the cylindrical extension section. A cylindrical through hole is formed in the other connection table, an internal thread is arranged on the inner wall of the cylindrical through hole, and a seal ring is arranged at the bottom end of the cylindrical through hole. An anti-abrasion layer is arranged on the outer wall of the steel tube body, and a reinforcing layer is arranged between the outer wall of the steel tube body and the anti-abrasion layer. In this way, according to the compound square tube, the square tube is simple in structure, assembly and connection are convenient, corrosion resistance and abrasion resistance are achieved, and the service life of the square tube is greatly prolonged.
Description
Technical field
The invention belongs to petroleum transportation field, be specifically related to a kind of composite square-tube.
Background technique
Square tube is a kind of cross section light thin wall steel pipe of square hollow, also referred to as steel cold-forming shapes, it is the shaped steel of the square cross-sectional shape size made through high frequency welding again after cold bend(ing) machine shaping for mother metal with hot rolling or cold-strip steel or roll bending, the special heavy wall square tube of hot rolling is outer situation except wall thickness thickens, its bight size and edge straightness all meet or exceed the level of resistance welding cold forming square tube, square tube comprehensive mechanical property is good, weldability, cold, hot-working character and decay resistance are all good, have good low-temperature flexibility.
Petrochemical industry, often can use various square tube, and at present, it is low that the square tube that petrochemical industry uses exists intensity, holds yielding shortcoming.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of composite square-tube.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of composite square-tube, comprise steel pipe, described steel pipe cross section is square structure, described steel pipe two ends are provided with connected unit, described connected unit offers some attachment holes, wherein connected unit described in is provided with cylindrical extension, outer, described cylindrical extension is provided with outside thread, square through hole is offered in described cylindrical extension, cylindrical hole is offered in connected unit described in another, described cylindrical hole inwall is provided with internal thread, described cylindrical hole bottom is provided with a seal ring,
Described outer wall of steel pipe is provided with one deck wearing layer;
The strong layer of one deck is provided with between described outer wall of steel pipe and described wearing layer.
In a preferred embodiment of the present invention, match with described cylindrical hole in described cylindrical extension.
In a preferred embodiment of the present invention, described outside thread matches with described internal thread.
In a preferred embodiment of the present invention, the quantity of described attachment hole is 12.
In a preferred embodiment of the present invention, the thickness of described wearing layer is 1 ~ 10mm.
The invention has the beneficial effects as follows: a kind of composite square-tube of the present invention, this rhs-structure is simple, is connected conveniently, also has corrosion resistance and wear resistance, considerably increase its working life.
Accompanying drawing explanation
Fig. 1 is a kind of sectional view of composite square-tube.
In accompanying drawing, the mark of each parts is as follows: 1, steel pipe; 2, connected unit; 3, attachment hole; 4, cylindrical extension; 5, outside thread; 6, square through hole; 7, cylindrical hole; 8, internal thread; 9, seal ring; 10, wearing layer; 11, strong layer.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Refer to Fig. 1, the embodiment of the present invention comprises: a kind of composite square-tube, comprise steel pipe 1, described steel pipe 1 cross section is square structure, described steel pipe 1 two ends are provided with connected unit 2, and described connected unit 2 offers some attachment holes 3, are connected by described attachment hole 3 by nut, thus be fixed with square tube two, the quantity of attachment hole 3 described in the present embodiment is 12.
Wherein connected unit 2 described in is provided with cylindrical extension 4, and outer, described cylindrical extension 4 is provided with outside thread 5, offers square through hole 6 in described cylindrical extension 4, and described square through hole 6 is identical with size with the shape of described steel pipe 1 inwall.
Cylindrical hole 7 is offered in connected unit 2 described in another, described cylindrical hole 7 inwall is provided with internal thread 8, match with described cylindrical hole 7 in described cylindrical extension 4, described outside thread 5 matches with described internal thread 8, first described cylindrical extension 4 is connected with described cylindrical hole 7 when connecting by side cross tube, described outside thread 5 is made to be connected closely with described internal thread 8 by rotating, finally by nut, described attachment hole 3 is connected, thus finally fix with square tube two.
Described cylindrical hole 7 bottom is provided with a seal ring 9, and described seal ring 9 improves the sealing of joint.
Described steel pipe 1 outer wall is provided with one deck wearing layer 10, and the thickness of described wearing layer 10 is 1 ~ 10mm, the thickness 9mm of wearing layer 10 described in the present embodiment.
Be provided with the strong layer 11 of one deck between described steel pipe 1 outer wall and described wearing layer 10, described in the present embodiment, strong layer 11 is carbon fiber, for increasing the intensity of this composite square-tube.
Compared with prior art, a kind of composite square-tube of the present invention, this rhs-structure is simple, is connected conveniently, also has corrosion resistance and wear resistance, considerably increase its working life.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. a composite square-tube, comprise steel pipe, described steel pipe cross section is square structure, it is characterized in that: described steel pipe two ends are provided with connected unit, described connected unit offers some attachment holes, wherein connected unit described in is provided with cylindrical extension, outer, described cylindrical extension is provided with outside thread, square through hole is offered in described cylindrical extension, cylindrical hole is offered in connected unit described in another, described cylindrical hole inwall is provided with internal thread, and described cylindrical hole bottom is provided with a seal ring;
Described outer wall of steel pipe is provided with one deck wearing layer;
The strong layer of one deck is provided with between described outer wall of steel pipe and described wearing layer.
2. a kind of composite square-tube according to claim 1, is characterized in that: match with described cylindrical hole in described cylindrical extension.
3. a kind of composite square-tube according to claim 1, is characterized in that: described outside thread matches with described internal thread.
4. a kind of composite square-tube according to claim 1, is characterized in that: the quantity of described attachment hole is 12.
5. a kind of composite square-tube according to claim 1, is characterized in that: the thickness of described wearing layer is 1 ~ 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510538105.7A CN105065850A (en) | 2015-08-28 | 2015-08-28 | Compound square tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510538105.7A CN105065850A (en) | 2015-08-28 | 2015-08-28 | Compound square tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105065850A true CN105065850A (en) | 2015-11-18 |
Family
ID=54495296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510538105.7A Pending CN105065850A (en) | 2015-08-28 | 2015-08-28 | Compound square tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105065850A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH568521A5 (en) * | 1973-03-14 | 1975-10-31 | Gustavsbergs Fabriker Ab | |
| JPH0882391A (en) * | 1994-09-09 | 1996-03-26 | Eishin Seisakusho:Kk | Connecting method for pipe for pipe work, such as electricity, city water, and well |
| JPH11344169A (en) * | 1998-06-01 | 1999-12-14 | Housing Tamura:Kk | Pipe joint structure |
| CN201751660U (en) * | 2010-05-11 | 2011-02-23 | 福建利新德塑胶制品有限公司 | Connecting structure of polyethylene hollow-wall spiral winding tubes |
| CN102128212A (en) * | 2011-02-12 | 2011-07-20 | 中国船舶重工集团公司第七一二研究所 | Longitudinal connecting moment tube and manufacturing method thereof |
| CN102563220A (en) * | 2010-12-16 | 2012-07-11 | 株式会社新三兴钢管 | Threaded steel pipe for piping |
| CN203051976U (en) * | 2012-12-01 | 2013-07-10 | 肖洪钦 | Pipeline sealing structure for color steel room |
| CN203176557U (en) * | 2013-03-18 | 2013-09-04 | 广东易事特电源股份有限公司 | Ventilation pipe of modularized connection structure |
| CN203322549U (en) * | 2013-06-23 | 2013-12-04 | 浙江金宸三普换热器有限公司 | Connecting sleeve for multipurpose refrigerating pipe |
| CN103604018A (en) * | 2013-11-19 | 2014-02-26 | 上海市基础工程集团有限公司 | Fiber reinforced plastic joint for marine discharge pipelines |
| CN203477677U (en) * | 2013-08-07 | 2014-03-12 | 枞阳县高瑶机械设备有限公司 | Pipe flange |
| CN203940134U (en) * | 2014-01-16 | 2014-11-12 | 王立刚 | Square tube |
| CN205013962U (en) * | 2015-08-28 | 2016-02-03 | 风范绿色建筑（常熟）有限公司 | Complex side's pipe |
-
2015
- 2015-08-28 CN CN201510538105.7A patent/CN105065850A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH568521A5 (en) * | 1973-03-14 | 1975-10-31 | Gustavsbergs Fabriker Ab | |
| JPH0882391A (en) * | 1994-09-09 | 1996-03-26 | Eishin Seisakusho:Kk | Connecting method for pipe for pipe work, such as electricity, city water, and well |
| JPH11344169A (en) * | 1998-06-01 | 1999-12-14 | Housing Tamura:Kk | Pipe joint structure |
| CN201751660U (en) * | 2010-05-11 | 2011-02-23 | 福建利新德塑胶制品有限公司 | Connecting structure of polyethylene hollow-wall spiral winding tubes |
| CN102563220A (en) * | 2010-12-16 | 2012-07-11 | 株式会社新三兴钢管 | Threaded steel pipe for piping |
| CN102128212A (en) * | 2011-02-12 | 2011-07-20 | 中国船舶重工集团公司第七一二研究所 | Longitudinal connecting moment tube and manufacturing method thereof |
| CN203051976U (en) * | 2012-12-01 | 2013-07-10 | 肖洪钦 | Pipeline sealing structure for color steel room |
| CN203176557U (en) * | 2013-03-18 | 2013-09-04 | 广东易事特电源股份有限公司 | Ventilation pipe of modularized connection structure |
| CN203322549U (en) * | 2013-06-23 | 2013-12-04 | 浙江金宸三普换热器有限公司 | Connecting sleeve for multipurpose refrigerating pipe |
| CN203477677U (en) * | 2013-08-07 | 2014-03-12 | 枞阳县高瑶机械设备有限公司 | Pipe flange |
| CN103604018A (en) * | 2013-11-19 | 2014-02-26 | 上海市基础工程集团有限公司 | Fiber reinforced plastic joint for marine discharge pipelines |
| CN203940134U (en) * | 2014-01-16 | 2014-11-12 | 王立刚 | Square tube |
| CN205013962U (en) * | 2015-08-28 | 2016-02-03 | 风范绿色建筑（常熟）有限公司 | Complex side's pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151118 |