CN201715128U - Connecting structure for metal bellows - Google Patents
Connecting structure for metal bellows Download PDFInfo
- Publication number
- CN201715128U CN201715128U CN2010201840259U CN201020184025U CN201715128U CN 201715128 U CN201715128 U CN 201715128U CN 2010201840259 U CN2010201840259 U CN 2010201840259U CN 201020184025 U CN201020184025 U CN 201020184025U CN 201715128 U CN201715128 U CN 201715128U
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- CN
- China
- Prior art keywords
- bellows
- steel band
- band ring
- band rings
- end tubes
- 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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Abstract
The utility model discloses a connecting structure for a metal bellows, which belongs to the technical field of mechanical manufacturing and is used for connecting the metal bellows with end tubes. The connecting structure is characterized in that: the bellows is connected with the end tubes through steel band rings, the end tubes are inserted in the steel band rings, the inner ends of the end tubes are extended out of the steel band rings, the outer surfaces of the extended parts are lapped with the inner surfaces of the outer ends of the bellows, the outer ends of the bellows are firmly and hermetically connected with the inner ends of the steel band rings, and the outer ends of the steel band rings are firmly and hermetically connected with the inner ends of the end tubes. Since the connecting structure adopts the steel band rings to transitionally connect the bellows with the end tubes and the ends of the bellows are connected with the steel band rings by butt welding, the connecting structure solves problems such as the cracking of the ends of the bellows, and increases the use safety and service lives of expension joints of the bellows, and the utility model can be widely applied in industries such as heat supply, flue gas and chemical.
Description
Technical field
The utility model belongs to machinery manufacturing technology field, is specifically related to a kind of linkage structure of metal bellows.
Background technique
Metal corrugated pipe expansion joint is made up of one or several metal bellows and structural member, is used for absorbing the pipeline that reason causes, the metal device that is equipped with dimensional changes such as expand with heat and contract with cold, and is widely used in industries such as heat supply, combustion gas, chemical industry.Metal corrugated pipe expansion joint has saving space, economical with materials.Bellows expansion joint is by the elastic element bellows and hold annexes such as pipe, support, flange, conduit to form.In the existing linkage structure, metal bellows directly is connected in the welded corner joint mode between the pipe with end, because of fillet weld is a kind of how much mutation structures, region of stress concentration often in forming process, Cracking Failure is that the main failure mode at fillet weld position is seen, therefore, the linkage structure between metal bellows and the end pipe is the main position that expansion joint lost efficacy, and also is a weak part of bellows expansion joint.
The model utility content
The utility model aims to provide a kind of metal bellows and holds the technological scheme that reliably is connected between the pipe, the easy shortcoming of inefficacy between the bellows that solves metal corrugated pipe expansion joint in the prior art and the end pipe is for the safe utilization of metal corrugated pipe expansion joint and reliable scientific method is provided working life.
The linkage structure of described a kind of metal bellows, be used for bellows and hold being connected of pipe, it is characterized in that bellows is connected by the steel band ring between the pipe with end, the end pipe is plugged in the steel band ring and the steel band ring is stretched out in the inner of end pipe, the extension outer surface cooperates with the internal surface overlap joint of bellows outer end, the inner fixed seal connection of bellows outer end and steel band ring, steel band ring outer end and the inner fixed seal connection of end pipe.
The linkage structure of described a kind of metal bellows is characterized in that between steel band ring the inner and the bellows outer end by both ends of the surface butt weld fixed seal connection; Pass through the fixed seal connection of hoop fillet weld between steel band ring outer end and end pipe the inner.
The linkage structure of described a kind of metal bellows is characterized in that the wall thickness of described steel band ring is not less than the wall thickness of bellows.
The linkage structure of described a kind of metal bellows is characterized in that described bellows is the single or multiple lift structure.
The linkage structure modern design of above-mentioned metal bellows, reasonable idea, adopt the transition of steel band ring to connect bellows and end pipe, corrugated tube end is connected with the butt welding of steel band ring, solved the corrugated tube end problems of crack, improve the safety in utilization and the life-span of bellows expansion joint, can be widely used in industries such as heat supply, combustion gas, chemical industry.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is an A bilge construction enlarged diagram among Fig. 1;
Among the figure: 1-end pipe, 2-bellows, 3-steel band ring, 4-flange.
Embodiment
Now, describe embodiment of the present utility model in detail in conjunction with Figure of description:
As shown in Figure 1, 2, bellows 2 is connected with end pipe 1, the outer end of end pipe 1 is connected with flange 4, the linkage structure of described a kind of metal bellows, exactly be used for being connected of bellows 2 and end pipe 1, bellows 2 be connected by steel band ring 3 between end manages 1, steel band ring 3 adopts the material identical with bellows 2, its wall thickness is not less than the wall thickness of bellows 2, can satisfy width and be about within the 50mm, specifically determines according to the diameter of end pipe 1; End pipe 1 is plugged in the steel band ring 3 and steel band ring 3 is stretched out in the inners of end pipe 1, and the extension outer surface cooperates with the internal surface overlap joint of bellows 2 outer ends, passes through both ends of the surface butt weld fixed seal connection between bellows 2 outer ends and steel band ring 3 the inners; Pass through the fixed seal connection of hoop fillet weld between steel band ring 3 outer ends and the end pipe 1; Steel band ring 3 outer ends and the 1 inner fixed seal connection of end pipe.
The linkage structure of above-mentioned a kind of metal bellows can be used for the bellows 2 of single or multiple lift and manages being connected between 1 with end, when bellows 2 adopts multi-layer structure, the wall thickness of steel band ring 3 can satisfy bellows 2 each layers and all can be connected with 3 butt welding of steel band ring greater than the wall thickness of bellows 2.
Claims (4)
1. the linkage structure of a metal bellows, be used for bellows (2) and manage being connected of (1) with end, it is characterized in that being connected by steel band ring (3) between bellows (2) and the end pipe (1), end pipe (1) is plugged in the steel band ring (3) and steel band ring (3) is stretched out in the inner of end pipe (1), the extension outer surface cooperates with the internal surface overlap joint of bellows (2) outer end, bellows (2) outer end and the inner fixed seal connection of steel band ring (3), steel band ring (3) outer end and (1) the inner fixed seal connection of end pipe.
2. the linkage structure of a kind of metal bellows as claimed in claim 1 is characterized in that between steel band ring (3) the inner and bellows (2) outer end by both ends of the surface butt weld fixed seal connection; Pass through the fixed seal connection of hoop fillet weld between steel band ring (3) outer end and end pipe (1) the inner.
3. the linkage structure of a kind of metal bellows as claimed in claim 1 is characterized in that the wall thickness of described steel band ring (3) is not less than the wall thickness of bellows (2).
4. the linkage structure of a kind of metal bellows as claimed in claim 1 is characterized in that described bellows (2) is the single or multiple lift structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201840259U CN201715128U (en) | 2010-05-07 | 2010-05-07 | Connecting structure for metal bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201840259U CN201715128U (en) | 2010-05-07 | 2010-05-07 | Connecting structure for metal bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201715128U true CN201715128U (en) | 2011-01-19 |
Family
ID=43461126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201840259U Expired - Fee Related CN201715128U (en) | 2010-05-07 | 2010-05-07 | Connecting structure for metal bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201715128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915666A (en) * | 2019-04-16 | 2019-06-21 | 无锡金龙石化冶金设备制造有限公司 | A kind of multilayer corrugated pipe and the connection structure of adapter tube and attaching method thereof |
-
2010
- 2010-05-07 CN CN2010201840259U patent/CN201715128U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915666A (en) * | 2019-04-16 | 2019-06-21 | 无锡金龙石化冶金设备制造有限公司 | A kind of multilayer corrugated pipe and the connection structure of adapter tube and attaching method thereof |
| CN109915666B (en) * | 2019-04-16 | 2023-11-17 | 无锡金龙石化冶金设备制造有限公司 | Connection structure and connection method of multilayer corrugated pipe and connecting pipe |
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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: 20110119 Termination date: 20110507 |