CN203052019U - Connecting structure for steel pipes - Google Patents
Connecting structure for steel pipes Download PDFInfo
- Publication number
- CN203052019U CN203052019U CN 201220622728 CN201220622728U CN203052019U CN 203052019 U CN203052019 U CN 203052019U CN 201220622728 CN201220622728 CN 201220622728 CN 201220622728 U CN201220622728 U CN 201220622728U CN 203052019 U CN203052019 U CN 203052019U
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- CN
- China
- Prior art keywords
- steel pipe
- pipe
- connecting ring
- tube
- outer tube
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- 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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- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model discloses a connecting structure for steel pipes. The connecting structure comprises an inner pipe and an outer pipe, wherein the inner pipe is fixedly connected with the inner surface of the outer pipe by a connecting ring arranged on the outer surface of the inner pipe, the inner diameter of the outer pipe is matched with the outer diameter of the steel pipes needing to be connected, and the outer diameter of the inner pipe is matched with the inner diameter of the steel pipes needing to be connected. Double protection is carried out on the connecting parts of the two steel pipes by the connecting structure, so that seal performance at the connecting parts of the two steel pipes is better.
Description
Technical field
The utility model relates to steel pipe linkage structure technical field, particularly a kind of linkage structure of steel pipe.
Background technique
At present, the Placement of steel pipe mainly adopts welding and flange connection.Welding is the method by heating, pressurization or both and usefulness, Placement with combination between the atom of two pipe fittings generation, but when welding, local high waterfall can cause that stress is concentrated and defective such as the deformation of member, and welding technique has higher requirements to operator's technology, and the existence of weld defects tends to influence node strength and fatigue behaviour; In addition, generally need suitable welding environment during welding operation, in the high-altitude and underwater operation inconvenience.It is that two pipe fittings is fixed on the flange plate that flange connects, add flange gasket between two flange plate, with bolton Connecting format together, but existing inner flange only can be used for the connection between large diameter steel pipe, less than adopting inner flange to connect between the steel pipe of climbing in people's energy; Adopt the outward flange linkage structure, the outward flange of protrusion not only diminishes attractive in appearancely, and contamination, corrosion easily influences working life and safety.
In order to address the above problem, following patented technology has been proposed in the prior art:
China Patent No. " 201120257925.6 " discloses a kind of novel steel tube Placement, its open day is on 03 21st, 2012, steel pipe and outer steel pipe in comprising, steel pipe has two in described, respectively with described outer steel pipe dead in line, steel pipe one end inserts in the described outer steel pipe and overlaps in described, and the other end is connected with flange, the external diameter of described flange interior outer diameter of steel pipes and outside between the outer diameter of steel pipes; The gap location of the overlap joint section of steel pipe and described outer steel pipe is inserted cement slurry in described, forms the expanding cement ring; The joint of outer steel pipe is coated with crust.Advantage is construction environment and operator's technical requirements not high, is convenient to construction, and the installation time significantly reduces; Steel pipe uses flange to connect in it, and the steel pipe joint is coated with crust, makes to connect by the steel pipe beautiful shape smooth.
But be the prior art of representative with above-mentioned patent document, in actual use, still also have following defective:
One, the lap-joint of interior steel pipe and outer steel pipe must insert the cement slurry leakproof, connects complex procedures, and in the high-altitude or relatively poor environment such as underwater operation when constructing, has increased the weight of workmen's labor intensity especially.Two, the joint of outer steel pipe has only interior steel pipe one deck protection, under rugged environment, causes reduce the working life of steel pipe easily.If three steel pipes are for delivery of liquid substance, the sealing effect of this kind linkage structure is bad, easily seepage.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above that the steel pipe connection exists in the prior art, and a kind of linkage structure of steel pipe is provided, and the utility model is implemented duplicate protection to two steel pipe joints, makes the better tightness of steel pipe joint.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of linkage structure of steel pipe, it is characterized in that: comprise steel pipe and connecting tube, the internal surface at described steel pipe two ends is provided with screw thread, pipe and outer tube in described connecting tube comprises, the outer surface of pipe is provided with the screw thread that the internal surface with the steel pipe two ends is complementary in described, and the internal diameter of described outer tube is complementary with the required external diameter that is connected steel pipe, and outer pipe internal surface is provided with watertightness barrier, interior pipe is threaded with steel pipe, and watertightness barrier covers outer surface of steel tube.
Pipe is fixedlyed connected with outer pipe internal surface by the connecting ring that arranges on its outer surface in described.
Described watertightness barrier is served as reasons and is gathered the watertightness barrier that sulphur sealing compound is formed.
Described connecting ring is solid torus, and connecting ring and interior pipe and outer tube are integrated into.
Described connecting ring is arranged on the middle part of inner tube outer surface.
Adopt advantage of the present utility model to be:
One; in the utility model; the linkage structure of described steel pipe comprises steel pipe and connecting tube; the internal surface at described steel pipe two ends is provided with screw thread; pipe and outer tube in described connecting tube comprises; the outer surface of pipe is provided with the screw thread that the internal surface with the steel pipe two ends is complementary in described; the internal diameter of described outer tube is complementary with the required external diameter that is connected steel pipe; outer pipe internal surface is provided with watertightness barrier; interior pipe is threaded with steel pipe; watertightness barrier covers outer surface of steel tube; connecting tube and steel pipe lump together by thread; make the connection of steel pipe more firm; and cover one deck watertightness barrier at the outer surface of steel pipe, not only there is the better protection effect joint to steel pipe, as antirust; waterproof etc.; also improved the working life of steel pipe; and outside watertightness barrier, also be provided with outer tube, to further protecting the joint of steel pipe, improved sealing and the stability of two steel pipe joints.
Two, in the utility model, described interior pipe is fixedlyed connected with outer pipe internal surface by the connecting ring that arranges on its outer surface, and this structure makes connecting ring as a whole, and is durable.
Three, in the utility model, the described watertightness barrier watertightness barrier that poly-sulphur sealing compound is formed of serving as reasons arranges watertightness barrier at the internal surface of outer tube, and outer tube is combined more closely with steel pipe, and connecting tube is tightr with being connected of steel pipe, the leakage proof better effects if.
Four, in the utility model, described connecting ring is solid torus, and connecting ring and interior pipe and outer tube are integrated into, and the two ends that this structure makes connecting ring are space independently, are connected with the steel pipe at two ends respectively, connect better effects if.
Five, in the utility model, described connecting ring is arranged on the middle part of inner tube outer surface, and connecting ring is arranged on the middle part of connecting tube, and when being connected with the two ends steel pipe, the connection length unanimity at two ends connects more firmly, has improved working life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Be labeled as among the figure: 1, interior pipe, 2, outer tube, 3, connecting ring, 4, watertightness barrier, 5, steel pipe.
Embodiment
A kind of linkage structure of steel pipe, comprise steel pipe 5 and connecting tube, the internal surface at described steel pipe 5 two ends is provided with screw thread, pipe 1 and outer tube 2 in described connecting tube comprises, pipe 1 outer surface is provided with the screw thread that the internal surface with steel pipe 5 two ends is complementary in described, and the internal diameter of described outer tube 2 is complementary with the required external diameter that is connected steel pipe 5, and outer tube 2 internal surfaces are provided with watertightness barrier 4, in pipe 1 be threaded with steel pipe 5, watertightness barrier 4 covers steel pipe 5 outer surfaces.
Preferred implementation of the present utility model is, described in pipe 1 fixedlys connected with outer tube 2 internal surfaces by the connecting ring 3 that arranges on its outer surface, this is set to preferably, but is not limited thereto set-up mode.
Another preferred implementation of the present utility model is, described watertightness barrier 4 is served as reasons and is gathered the watertightness barrier 4 that sulphur sealing compound is formed, the material of watertightness barrier 4 has a variety of, preferably by gathering the watertightness barrier 4 that sulphur sealing compound is formed, but be not limited thereto set-up mode, for example can select water-proofing materials commonly used such as igelite waterproofing unction or rubber strip.
Can coat waterproof paint with the joint of steel pipe 5 at outer tube 2 and the joint of steel pipe 5, interior pipe 1 when further, connecting steel pipe.
Another preferred implementation of the present utility model is, described connecting ring 3 is solid torus, and connecting ring 3 is integrated into interior pipe 1 and outer tube 2, and connecting ring 3 preferably is set to solid torus and outer tube 2 is made into integration, but be not limited thereto mode, also may gapped hole on the connecting ring 3.
Another preferred implementation of the present utility model is, the middle part of pipe 1 outer surface in described connecting ring 3 is arranged on, connecting ring 3 preferably is arranged on the middle part, is guaranteeing that connecting tube is connected under the degree of depth situation with steel pipe 5, and connecting ring 3 also can be arranged on any one position beyond the middle part.
Connecting ring 3 is integrated into interior pipe 1 and outer tube 2 in the utility model, and simple and convenient when mounted, can wrap up one deck again in the joint of steel pipe 5 can be in case the protection skin of rubbish.
Working principle of the present utility model is:
Because the internal diameter of outer tube 2 is complementary with the required external diameter that is connected steel pipe 5; the external diameter of interior pipe 1 is complementary with the required internal diameter that is connected steel pipe 5; when connecting two steel pipes 5; interior pipe 1 with connecting tube inserts in first steel pipe 5 with rotation mode earlier; after treating that first steel pipe 5 connects; again second steel pipe 5 linked to each other with connecting tube with rotation mode; because screw thread meshing effect mutually; connecting tube links together two steel pipes 5 closely; this moment, watertightness barrier 4 was wrapped in the outer surface of steel pipe 5 closely; guaranteed water proofing property and the sealing of steel pipe 5, at joint parcel one deck protection skin, the connection of two steel pipes 5 is finished then.
Claims (5)
1. the linkage structure of a steel pipe, comprise steel pipe (5) and connecting tube, the internal surface at described steel pipe (5) two ends is provided with screw thread, described connecting tube comprises interior pipe (1) and outer tube (2), the outer surface of pipe (1) is provided with the screw thread that the internal surface with steel pipe (5) two ends is complementary in described, the internal diameter of described outer tube (2) is complementary with the required external diameter that is connected steel pipe (5), outer tube (2) internal surface is provided with watertightness barrier (4), interior pipe (1) is threaded with steel pipe (5), and watertightness barrier (4) covers steel pipe (5) outer surface.
2. the linkage structure of a kind of steel pipe as claimed in claim 1 is characterized in that: manage (1) in described and fixedly connected with outer tube (2) internal surface by the connecting ring (3) that arranges on its outer surface.
3. the linkage structure of a kind of steel pipe as claimed in claim 1 is characterized in that: described watertightness barrier (4) watertightness barrier (4) that poly-sulphur sealing compound is formed of serving as reasons.
4. as the linkage structure of claim 1,2 or 3 described a kind of steel pipes, it is characterized in that: described connecting ring (3) is solid torus, and connecting ring (3) is integrated into interior pipe (1) and outer tube (2).
5. the linkage structure of a kind of steel pipe as claimed in claim 4, it is characterized in that: described connecting ring (3) is arranged on the middle part of interior pipe (1) outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220622728 CN203052019U (en) | 2012-11-22 | 2012-11-22 | Connecting structure for steel pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220622728 CN203052019U (en) | 2012-11-22 | 2012-11-22 | Connecting structure for steel pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203052019U true CN203052019U (en) | 2013-07-10 |
Family
ID=48734972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220622728 Expired - Fee Related CN203052019U (en) | 2012-11-22 | 2012-11-22 | Connecting structure for steel pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203052019U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295847A (en) * | 2014-08-18 | 2015-01-21 | 江苏中冶能源设备制造有限公司 | Steel pipe connecting structure |
| CN113431966A (en) * | 2021-08-02 | 2021-09-24 | 王杨 | Municipal administration water supply and drainage pipeline connection structure |
-
2012
- 2012-11-22 CN CN 201220622728 patent/CN203052019U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295847A (en) * | 2014-08-18 | 2015-01-21 | 江苏中冶能源设备制造有限公司 | Steel pipe connecting structure |
| CN113431966A (en) * | 2021-08-02 | 2021-09-24 | 王杨 | Municipal administration water supply and drainage pipeline connection structure |
| CN113431966B (en) * | 2021-08-02 | 2022-08-26 | 王杨 | Municipal administration water supply and drainage pipeline connection structure |
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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: 20130710 Termination date: 20131122 |