CN204153342U - Spiral corrugated steel pipes - Google Patents
Spiral corrugated steel pipes Download PDFInfo
- Publication number
- CN204153342U CN204153342U CN201420539364.2U CN201420539364U CN204153342U CN 204153342 U CN204153342 U CN 204153342U CN 201420539364 U CN201420539364 U CN 201420539364U CN 204153342 U CN204153342 U CN 204153342U
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- China
- Prior art keywords
- wave groove
- ripple
- notch
- steel
- spiral
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Abstract
The utility model discloses a kind of spiral corrugated steel pipes, comprise body, this body forms by rolling with the steel plate spiral of longitudinal ripple, wherein, ripple is wound on the outer wall of pipe, inwall corresponding to body forms wave groove, and is provided with the steel band of the inwall continuously smooth making body at the notch place of this wave groove.Advantage of the present utility model is the effect of the ripple stiffening rib of tube wall, enhance the hoop intensity of pipeline entirety, namely body circumference second moment of area becomes geometry multiple to improve, greatly subtract steel-sheet thickness, cost-saving, simultaneously body is spiral, super-large diameter can be manufactured, as diameter be 4-10 rice about pipeline.The wave groove notch of inboard wall of tube body establishes steel band, makes inner wall smooth, liquid by time the resistance that is subject to little.Steel band is connected with the side of wave groove notch, and notch opposite side is free state, and pipeline can be out of shape at axial and circumferential, can offset the destruction that foundation settlement produces time buried.
Description
Technical field
The utility model relates to a kind of steel pipe, particularly relates to a kind of spiral type corrugated steel pipe of interior walls be smooth.
Background technique
Existing reinforced concrete pipiline, planomural steel pipe or plastic tube etc., pipe diameter all can not be too large, such as, just be difficult to when reinforced concrete pipiline diameter is more than 2 meters manufacture, body is heavy, and length is unsuitable oversize, and constructional difficulties is easily revealed simultaneously, hydrodynamic pressure can not be too large, can not be used as pressure piping; When the bore of steel pipe is larger, in order to meet the most basic compressive strength, namely during hoop rigidity, just must increases steel plate thickness, raising the cost, and bore can not be too large, otherwise under gravity, the distortion of pipeline may be caused; The Young's modulus of plastic pipe is little, when doing large diameter pipeline use, cannot meet the requirement of hoop rigidity; When the uneven sedimentation in ground, above-mentioned pipeline is also fragile.
Model utility content
Model utility object: the spiral corrugated steel pipes that the purpose of this utility model is to provide and is a kind ofly applicable to that diameter is large, pipe thickness is little, hoop rigidity increases, discharge opeing resistance is little.
Technological scheme: steel pipe described in the utility model, comprise body, this body forms by rolling with the steel plate spiral of longitudinal ripple, wherein, ripple is wound on the outer wall of pipe, inwall corresponding to body forms wave groove, and is provided with the steel band of the inwall continuously smooth making body at the notch place of this wave groove.
Wherein, the side of described steel band and wave groove notch is tightly connected.
Described steel band is connected with the both sides sealing of wave groove notch, and in the cavity that this wave groove is formed fill concrete.
The cross section of described ripple is arc-shaped, trapezoidal or square.
The cross section of described ripple is interrupted arc-shaped, is straight steel plate between adjacent corrugations.
Beneficial effect: the utility model compared with prior art, its advantage is: the effect of the ripple stiffening rib of tube wall, enhance the hoop intensity of pipeline entirety, namely body circumference second moment of area becomes geometry multiple to improve, greatly subtract steel-sheet thickness, cost-saving, simultaneously body is spiral, super-large diameter can be manufactured, as diameter be 4-10 rice about pipeline.The wave groove notch of inboard wall of tube body establishes steel band, makes inner wall smooth, liquid by time the resistance that is subject to little.Steel band is connected with the side of wave groove notch, and notch opposite side is free state, and pipeline can be out of shape at axial and circumferential, can offset the destruction that foundation settlement produces time buried.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the utility model with longitudinal ripple steel plate;
To be the utility model arrange the cross-sectional view after steel band with the steel plate of longitudinal ripple to Fig. 2;
Fig. 3 is the longitudinal section of the utility model spiral corrugated steel pipes;
Fig. 4 is the longitudinal section after the utility model spiral corrugated steel pipes fill concrete;
Fig. 5 is the stereogram of the utility model spiral corrugated steel pipes.
Embodiment:
As shown in Figure 1, first steel plate 2 being pressed into cross section is interrupted arc-shaped, namely be straight steel plate between adjacent arc-shaped ripple, certainly can also be continuous print arc-shaped, or the Corrugated Steel (longitudinal ripple steel plate) of other shape such as square, trapezoidal, wherein, a ripple and another wave spacing one segment distance, centre is straight steel plate.As shown in Figure 2,3, the side that this steel plate 2 forms wave groove 3 arranges steel band 4, makes steel plate 2 continuous; Then three roller rolling machine are utilized, by several angle (according to the diameter of the volute that will make, regulating profile angle), this steel plate 2 is rolled formation spiral corrugated steel pipes, and wherein, ripple is positioned at the outer wall of body 1, wave groove 3 is positioned at the inwall of body 1, and welds helically-seamed 5.In order to adapt to the uneven settlement on ground, guarantee body is in circumference and axially all can be out of shape and displacement, make weld from destruction, be tightly connected (such as welding) for above-mentioned steel band 4 and wave groove notch side (source near flow of fluid), and wave groove notch opposite side is free state (see Fig. 2).As shown in Figure 4, when steel pipe is used as embed-type or half embed-type pipeline, raising strength concrete 6 in the cavity that can be formed at wave groove 3, but when filling, need steel band 4 and wave groove notch opposite side to be tightly connected.In actual processing, can length as required, the multi-section steel pipe docking shown in Fig. 5 is formed.The height of ripple and spacing can adjust, and when using the steel pipe of super-large diameter, can make full use of pipeclay effect, and peripheral force major part is born by ripple.Ingeniously utilize the common stressed generation pipeclay effect principle of concrete steel pipe principle, CFST Arch Bridge principle, pipeclay; concrete is allowed to replace steel structure to bear hoop pressure stress; give full play to concrete resistance to compression advantage; concrete is allowed to replace steel structure to bear pressure stress; protection inwall; and ripple cavity plays hoop package action to concrete, prevent the concrete column in cavity from producing the destructions such as unstability when pressurized.
Claims (5)
1. a spiral corrugated steel pipes, it is characterized in that: comprise body (1), this body (1) forms by rolling with steel plate (2) spiral of longitudinal ripple, wherein, ripple is wound on the outer wall of body (1), inwall corresponding to body (1) forms wave groove (3), and is provided with the steel band (4) of the inwall continuously smooth making body (1) at the notch place of this wave groove (3).
2. spiral corrugated steel pipes according to claim 1, is characterized in that: described steel band (4) is tightly connected with the side of wave groove (3) notch.
3. spiral corrugated steel pipes according to claim 1, is characterized in that: described steel band (4) is connected with the both sides sealing of wave groove (3) notch, and in the cavity that this wave groove (3) is formed fill concrete.
4. according to the arbitrary described spiral corrugated steel pipes of claim 1-3, it is characterized in that: the cross section of described ripple is arc-shaped, trapezoidal or square.
5. spiral corrugated steel pipes according to claim 4, is characterized in that: the cross section of described ripple is interrupted arc-shaped, is straight steel plate between adjacent corrugations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420539364.2U CN204153342U (en) | 2014-09-18 | 2014-09-18 | Spiral corrugated steel pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420539364.2U CN204153342U (en) | 2014-09-18 | 2014-09-18 | Spiral corrugated steel pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204153342U true CN204153342U (en) | 2015-02-11 |
Family
ID=52511457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420539364.2U Expired - Fee Related CN204153342U (en) | 2014-09-18 | 2014-09-18 | Spiral corrugated steel pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204153342U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133646A (en) * | 2015-09-18 | 2015-12-09 | 南京联众建设工程技术有限公司 | Underground steel and concrete structure pipeline and manufacturing method thereof |
| WO2016041290A1 (en) * | 2014-09-18 | 2016-03-24 | 南京联众建设工程技术有限公司 | Spiral steel pipe having reinforcing ring and method for manufacture thereof |
-
2014
- 2014-09-18 CN CN201420539364.2U patent/CN204153342U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016041290A1 (en) * | 2014-09-18 | 2016-03-24 | 南京联众建设工程技术有限公司 | Spiral steel pipe having reinforcing ring and method for manufacture thereof |
| CN105133646A (en) * | 2015-09-18 | 2015-12-09 | 南京联众建设工程技术有限公司 | Underground steel and concrete structure pipeline and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20170918 |