CN208169975U - High-strength accurate welded still pipe - Google Patents
High-strength accurate welded still pipe Download PDFInfo
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- CN208169975U CN208169975U CN201820740116.2U CN201820740116U CN208169975U CN 208169975 U CN208169975 U CN 208169975U CN 201820740116 U CN201820740116 U CN 201820740116U CN 208169975 U CN208169975 U CN 208169975U
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- outer tube
- inner tube
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- tube
- welded
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Abstract
The utility model relates to precsion welded pipe technical fields,Especially a kind of high-strength accurate welded still pipe,Including by the molding outer tube of steel plate bending and by the molding inner tube of steel plate bending,Two free ends end of inner tube contacts with each other,It is welded to each other to form inside weld between two free ends of inner tube,Outer tube is coated on the outside of inner tube,The edge of two free ends of outer tube contacts with each other,The card slot that there is the edge card for two free ends of outer tube to set on the lateral surface of inner tube,The edge of two free ends of outer tube is embedded into card slot,It is welded to each other to form outside weld between two free ends of outer tube,Inner tube is coated in it by the utility model high-strength accurate welded still pipe using outer tube,The inside weld of inner tube is set to be not susceptible to crack,Two edges of two free ends of outer tube are embedded into the card slot on inner tube lateral surface simultaneously,The outside weld of outer tube is set to be not susceptible to crack using inner tube,To improve the intensity of entire steel pipe,And the leakproofness of steel pipe is preferable.
Description
Technical field
The utility model relates to precsion welded pipe technical field, especially a kind of high-strength accurate welded still pipe.
Background technique
With the progress of rapid development and the welding and inspection technology of quality strip steel rolling production, the kind of welded still pipe
Specification is increasing, and in more and more fields instead of seamless steel pipe.Welded still pipe is more at low cost than seamless steel pipe, production is imitated
Rate is high, welded still pipe refers to be deformed into the shapes such as round, rectangular with steel band or steel plate bending after be welded into again, and existing weldering
Connect steel pipe due to only lean on a solder design, cause the intensity of its own lower, with prolonged use steel pipe also be easy from
It splits commissure.
Utility model content
The technical problems to be solved in the utility model is：In order to solve welded still pipe in the prior art due to only leaning on one
Solder design causes the intensity of its own lower, existing as prolonged use steel pipe is also easy the problem of splitting from commissure
A kind of high-strength accurate welded still pipe is provided.
Technical solution adopted by the utility model to solve its technical problems is：A kind of high-strength accurate welded still pipe, packet
It includes by the molding outer tube of steel plate bending and by the molding inner tube of steel plate bending, two free ends end phase mutual connection of said inner tube
Touching is welded to each other to form inside weld between two free ends of said inner tube, and the outer tube is coated on the outside of inner tube, and with it is interior
The lateral surface of pipe is bonded, and two free ends of the outer tube are inwardly bent with edge, the edge of two free ends of outer tube
It contacts with each other, the card slot that there is the edge card for two free ends of outer tube to set on the lateral surface of said inner tube, the outer tube two
The edge of free end is embedded into the card slot, is welded to each other to form outside weld between two free ends of the outer tube, institute
It states using being welded and fixed between the end of outer tube and the end of inner tube, the outside weld is mutually staggered with inside weld.
Steel pipe is constituted by the cooperation of inner tube and outer tube in this programme, and inner tube is coated in it using outer tube, is prevented
Inside weld is damaged, and improves the bonding strength of two free ends of inner tube, while two edges of two free ends of outer tube are embedding
Enter to the card slot on inner tube lateral surface, make two free end hooks of outer tube on inner pipe, to improve outer tube two in structure
The bonding strength of free end cooperates the outside weld of upper exterior tube, keeps the connection of two free ends of outer tube more firm.
Further, the outside weld and inside weld are located at the two sides of inner tube.
In order to improve the intensity connected between outer tube and inner tube, further, the lateral surface of said inner tube has locating slot,
The medial surface of the outer tube is protruding with the positioning strip to match with the locating slot, and the positioning strip is embedded into the locating slot
Interior, the lateral surface of the positioning strip and end face are contacted with the cell wall of locating slot, by the locating slot and outer tube in inner tube
Positioning strip cooperates, and improves the axial strength and radial strength connected between outer tube and inner tube.
The utility model has the beneficial effects that：The utility model high-strength accurate welded still pipe is coated inner tube using outer tube
In it, the inside weld of inner tube is made to be not susceptible to crack, while two edges of two free ends of outer tube are embedded into outside inner tube
Card slot on side makes the outside weld of outer tube be not susceptible to crack using inner tube, to improve the intensity of entire steel pipe, and steel pipe
Leakproofness it is preferable.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the schematic cross-section of the utility model high-strength accurate welded still pipe；
Fig. 2 is the schematic three dimensional views of the utility model high-strength accurate welded still pipe；
Fig. 3 is the partial enlargement diagram of A in Fig. 2；
Fig. 4 is the schematic three dimensional views of the utility model high-strength accurate welded still pipe middle external tube；
Fig. 5 is the schematic three dimensional views of inner tube in the utility model high-strength accurate welded still pipe.
In figure：1, outer tube, 1-1, edge, 1-2, outside weld, 1-3, positioning strip, 2, inner tube, 2-1, card slot, 2-2, interior weldering
Seam, 2-3, locating slot.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model, direction
It can be only used for helping the description to the feature in attached drawing with referring to (for example, upper and lower, left and right, etc.).Therefore, it is not limiting
Following specific embodiments are used in property meaning processed, and are only requested by appended claims and its equivalent form to limit
The range of the theme of protection.
Embodiment 1
As shown in Figs. 1-5, a kind of high-strength accurate welded still pipe, including by the molding outer tube 1 of steel plate bending and by steel plate
Two free ends end of the inner tube 2 of brake forming, said inner tube 2 contacts with each other, phase between two free ends of said inner tube 2
Mutually welding forms inside weld 2-2, and the outer tube 1 is coated on the outside of inner tube 2, and is bonded with the lateral surface of inner tube 2, the outer tube
1 two free ends are inwardly bent with edge 1-1, and the edge 1-1 of 1 two free ends of the outer tube contacts with each other, described interior
There is the card slot 2-1 set simultaneously for the edge 1-1 card of 1 two free ends of outer tube, the outer tube 1 two is certainly on the lateral surface of pipe 2
It is embedded into the card slot 2-1 by the edge 1-1 held, is welded to each other to form outside weld between two free ends of the outer tube 1
1-2 is stitched, uses and is welded and fixed between the end of the outer tube 1 and the end of inner tube 2, the outside weld 1-2 and inside weld 2-2 phase
Mutually it is staggered, wherein after the welding of two free ends of inner tube 2,1 brake forming of outer tube and the outside for being coated on inner tube 2.
The outside weld 1-2 and inside weld 2-2 is located at the two sides of inner tube 2, and the lateral surface of said inner tube 2 has positioning
Slot 2-3, the medial surface of the outer tube 1 are protruding with the positioning strip 1-3, the positioning strip 1-3 to match with the locating slot 2-3
It is embedded into the locating slot 2-3, the lateral surface of the positioning strip 1-3 and end face are contacted with the cell wall of locating slot 2-3, are passed through
The positioning strip 1-3 on locating slot 2-3 and outer tube 1 in inner tube 2 cooperates, and improves the axial direction connected between outer tube 1 and inner tube 2
Intensity and radial strength.
Inner tube 2 in the present embodiment improves the bonding strength of 2 two free ends of inner tube by the cladding of outer tube 1, and interior
Pipe 2 is in turn for improving the bonding strength of two free ends of outer tube 1, to realize the intensity for improving entire steel pipe.
The above-mentioned desirable embodiment according to the utility model is enlightenment, through the above description, relevant staff
Completely various changes and amendments can be carried out in the range of without departing from this item utility model technical idea.This item is practical
Novel technical scope is not limited to the contents of the specification, it is necessary to determine that its is technical according to scope of the claims
Range.
Claims (3)
1. a kind of high-strength accurate welded still pipe, it is characterised in that：Including curved by the molding outer tube of steel plate bending (1) and by steel plate
Bent molding inner tube (2), two free ends end of said inner tube (2) contact with each other, two free ends of said inner tube (2) it
Between be welded to each other to be formed inside weld (2-2), the outer tube (1) is coated on the outside of inner tube (2), and the lateral surface with inner tube (2)
Fitting, two free ends of the outer tube (1) are inwardly bent with edge (1-1), the edge of (1) two free end of outer tube
(1-1) contacts with each other, and there is the edge (1-1) for (1) two free end of outer tube to block the card set on the lateral surface of said inner tube (2)
The edge (1-1) of slot (2-1), (1) two free end of the outer tube is embedded into the card slot (2-1), the outer tube (1)
It is welded to each other to be formed outside weld (1-2) between two free ends, be adopted between the end of the outer tube (1) and the end of inner tube (2)
With being welded and fixed, the outside weld (1-2) mutually staggers with inside weld (2-2).
2. high-strength accurate welded still pipe according to claim 1, it is characterised in that：The outside weld (1-2) and interior weldering
Seam (2-2) is located at the two sides of inner tube (2).
3. high-strength accurate welded still pipe according to claim 1, it is characterised in that：The outside mask of said inner tube (2)
Having locating slot (2-3), the medial surface of the outer tube (1) is protruding with the positioning strip (1-3) to match with the locating slot (2-3),
The positioning strip (1-3) is embedded into the locating slot (2-3), the lateral surface of the positioning strip (1-3) and end face with positioning
The cell wall of slot (2-3) contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820740116.2U CN208169975U (en) | 2018-05-17 | 2018-05-17 | High-strength accurate welded still pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820740116.2U CN208169975U (en) | 2018-05-17 | 2018-05-17 | High-strength accurate welded still pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208169975U true CN208169975U (en) | 2018-11-30 |
Family
ID=64363988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820740116.2U Active CN208169975U (en) | 2018-05-17 | 2018-05-17 | High-strength accurate welded still pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208169975U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116077160A (en) * | 2023-04-11 | 2023-05-09 | 北京爱康宜诚医疗器材有限公司 | Spinal traction device |
| CN116654208A (en) * | 2023-05-05 | 2023-08-29 | 广船国际有限公司 | Double-wall round pipe pillar and manufacturing method thereof |
-
2018
- 2018-05-17 CN CN201820740116.2U patent/CN208169975U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116077160A (en) * | 2023-04-11 | 2023-05-09 | 北京爱康宜诚医疗器材有限公司 | Spinal traction device |
| CN116077160B (en) * | 2023-04-11 | 2023-07-14 | 北京爱康宜诚医疗器材有限公司 | Spinal traction device |
| CN116654208A (en) * | 2023-05-05 | 2023-08-29 | 广船国际有限公司 | Double-wall round pipe pillar and manufacturing method thereof |
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