CN104329515A - Steel strip-reinforced trapeziform spiral corrugated pipe - Google Patents
Steel strip-reinforced trapeziform spiral corrugated pipe Download PDFInfo
- Publication number
- CN104329515A CN104329515A CN201410490901.3A CN201410490901A CN104329515A CN 104329515 A CN104329515 A CN 104329515A CN 201410490901 A CN201410490901 A CN 201410490901A CN 104329515 A CN104329515 A CN 104329515A
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- Prior art keywords
- steel band
- steel
- steel strip
- polyethylene layer
- reinforced
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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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to a steel strip-reinforced trapeziform spiral corrugated pipe, and the purpose of the invention is to provide a steel strip-reinforced trapeziform spiral corrugated pipe which has high bonding property, high pipe quality and high stability. The steel strip-reinforced trapeziform spiral corrugated pipe comprises an inner polyethylene layer (4), steel strips (6) and an outer polyethylene layer (2) which are arranged sequentially, the steel strips (6) are spiral steel strips, holes (1) are distributed in the steel strips (6), both the inner polyethylene layer (4) and the outer polyethylene layer (2) are crosslinked with the holes, thickening layers (5) are arranged on the parts, which are in contact with the steel strips (6), of the inner polyethylene layer (4), the section of each steel strip (6) is shaped like an isosceles trapezoid, and the ratio of the top length to the bottom length of the isosceles trapezoid is 1:2 to 3.
Description
Technical field
The present invention relates to helical bellows technical field, provide a kind of steel strip reinforced trapezoid spiral bellows.
Background technique
Steel band reinforced polyethylene spiral ripple pipe is applicable to various draining and the drainages such as municipal administration, industry, agricultural and traffic engineering construction.Which overcoming cement pipe is substantially all level and smooth straight shape pipe, and can not be incubated, as caliduct, steam line in use, owing to not being incubated, the problems such as heat loss, brings certain impact, and economic benefit is not high.Ring stiffness is high, easy to connect, low cost and other advantages owing to having for steel band reinforced polyethylene spiral ripple pipe, is used as the buried draining in the fields such as urban construction, blow-off line at present more and more.
At present, the mode of production of existing steel band reinforced polyethylene spiral ripple pipe is by expecting with steel band melting composite winding shaping at production line by PE.What mainly play rigidity effect is shaped-steel strip, and the thickness of shaped-steel strip and plastic inner pipe bond locations is outstanding does not reach certain ring stiffness.And its inner and outer wall adopts regenerated polythene and high density polyethylene (HDPE) (HDPE) to be raw material respectively, arranges steel band between inner and outer wall, need during making on steel band, to apply binding agent, so that steel band and inside and outside wall stick together.Because inside and outside wall raw material is variant, Material shrinkage rate is inconsistent, easily causes the problems such as deformation of products is large, a drum.Helical bellows integral adhesive is poor, and anti-corrosion capability is weak, and ring stiffness is not high,
Existing plastics ribbon spiral bellows is when tube forming, keep at a certain distance away between two adjacent rings steel band, namely between two adjacent rings steel band, plastic inner pipe exposes, reduce the bulk strength of tube wall, when being in use subject to the impact of sharp objects, easily cause tube wall to break and seepage, affect working life, limit its application area.
At present, steel band enhanced polyethylene (PE) helical bellows that market is sold, cementability is poor, anti-corrosion capability is weak, and ring stiffness is not high, and ring stiffness grade is maximum can only reach SN16, crest is higher, upper ripple is wide be lower ripple wide 65% ~ 75%, steel band reinforced polyethylene spiral ripple pipe crest number distribution is relatively many, cause outer wall thickness ununiformity even, not only pipe ring stiffness is low, and external shock resistance ability is poor, anti-corrosion capability is poor, cementability is bad, and tubing rice is heavy comparatively large, and cost is high.
Summary of the invention
The object of the present invention is to provide a kind of adhesive property high, a kind of steel strip reinforced trapezoid spiral bellows that the stability of high pipe workpiece quality is high.
The present invention is by the following technical solutions to achieve these goals:
A kind of steel strip reinforced trapezoid spiral bellows, it is characterized in that: comprise the interior polyethylene layer (4) set gradually, steel band (6) and outer polyethylene layers (2), steel band (6) is helical steel band, steel band (6) is upper arranges porose (1), interior polyethylene layer (4) and outer polyethylene layers (2) are all cross-linked with hole (1), the position that described interior polyethylene layer (4) contacts with steel band (6) is provided with thickening layer (5), the cross section of steel band (6) is isosceles trapezoid, long 1:2 ~ the 3 long end of with, top of isosceles trapezoid.
In technique scheme, steel band (3) bottom is provided with limit pin (3), and limit pin (3) edge thickness evenly reduces.
In technique scheme, steel band (6) upper cloth hole density is 4 ~ 5/cm
2, the diameter of hole (1) is 4 ~ 5 millimeters.
Because the present invention adopts above technological scheme, so possess following beneficial effect:
One, invention increases the thickness at steel band presser feet and interior polyethylene layer link position place, the ring stiffness that tubing is certain can be improved, improve the stability of pipe workpiece quality.Reduce the maintenance cost caused because of inwall cracking, and after thickness increase, greatly increase the working life of tubing.
Two, the present invention cloth hole on steel band, make interior polyethylene layer and steel band, crosslinked, one integrated mass, improves impact strength, the peeling strength of product, promotes productivity, avoids that inside and outside wall is rough, out-of-flatness.
Three, the present invention is long than being 1:2 ~ 3 end of with by top length isosceles trapezoid being strengthened steel band, between two waists of isosceles trapezoid reinforcement steel band, angle is set to 21 ° ~ 30 °, reduce the height of crest, thus reach the object improving ring stiffness, reduce rejection number, improve economic benefit, when angle is 30 ° between two waists of steel band, pipe ring rigidity is the highest, can reach 22kN/ ㎡.
Accompanying drawing explanation
Fig. 1 is the helical thread portion sectional view of threaded pipe of the present invention;
Fig. 2 is steel band structural representation of the present invention;
Fig. 3 is threaded pipe schematic diagram.
In figure, 7 is screw thread.
Embodiment
Embodiment as shown in Figure 1, interior polyethylene layer of the present invention is by internal layer molding port mould, hot extrusion goes out the structure of polyethylene layer 4 in plastics, at the shaped-steel strip 6 with flanging pin 3, then steel band 3 is wound with the shaped-steel strip of both sides with flanging the outer surface of interior polyethylene layer 4 is equidistant, the limit presser feet pressure of steel band 6 falls within the thickening layer 5 of interior polyethylene layer 4.Corner 3 edge thickness evenly reduces.In technique scheme, on steel band, cloth hole density is 4 ~ 5/cm2, and the diameter in hole is 4 ~ 5 millimeters, and the cross section of steel band 6 is isosceles trapezoid, long 1:2 ~ the 3 long end of with, top of isosceles trapezoid.。
Embodiment 1
A kind of steel strip reinforced trapezoid spiral bellows, it is characterized in that: comprise the interior polyethylene layer set gradually, steel band 6 and outer polyethylene layers 2, steel band 6 is helical steel band, steel band 6 arranges porose 1, and interior polyethylene layer 4 and outer polyethylene layers 2 are all cross-linked with hole 1, and the position that described interior polyethylene layer 4 contacts with steel band 6 is provided with thickening layer 5, the cross section of steel band 6 is isosceles trapezoid, the long the 1:2 long end of with in top of isosceles trapezoid.Be provided with limit pin 3 bottom steel band 3, limit pin 3 edge thickness evenly reduces.
On steel band 6, cloth hole density is 4/cm
2, the diameter in hole 1 is 5 millimeters.
Embodiment 2
A kind of steel strip reinforced trapezoid spiral bellows, it is characterized in that: comprise the interior polyethylene layer set gradually, steel band 6 and outer polyethylene layers 2, steel band 6 is helical steel band, steel band 6 arranges porose 1, and interior polyethylene layer 4 and outer polyethylene layers 2 are all cross-linked with hole 1, and the position that described interior polyethylene layer 4 contacts with steel band 6 is provided with thickening layer 5, the cross section of steel band 6 is isosceles trapezoid, the long the 1:3 long end of with in top of isosceles trapezoid.Be provided with limit pin 3 bottom steel band 3, limit pin 3 edge thickness evenly reduces.
On steel band 6, cloth hole density is 5/cm
2, the diameter in hole 1 is 4 millimeters.
Claims (4)
1. a steel strip reinforced trapezoid spiral bellows, it is characterized in that: comprise the interior polyethylene layer (4) set gradually, steel band (6) and outer polyethylene layers (2), steel band (6) is helical steel band, steel band (6) is upper arranges porose (1), interior polyethylene layer (4) and outer polyethylene layers (2) are all cross-linked with hole (1), the position that described interior polyethylene layer (4) contacts with steel band (6) is provided with thickening layer (5), the cross section of steel band (6) is isosceles trapezoid, and the ratio of the top length of isosceles trapezoid and end length is 1:2 ~ 3.
2. a kind of steel strip reinforced trapezoid spiral bellows according to claim 1, is characterized in that: steel band (3) bottom is provided with limit pin (3), and limit pin (3) edge thickness evenly reduces.
3. according to the arbitrary described a kind of steel strip reinforced trapezoid spiral bellows of claim 1-2, it is characterized in that: steel band (6) upper cloth hole density is 4 ~ 5/cm
2, the diameter of hole (1) is 4 ~ 5 millimeters.
4. a kind of steel strip reinforced trapezoid spiral bellows according to claim 3, is characterized in that: between two waists of steel band, angle is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490901.3A CN104329515A (en) | 2014-09-24 | 2014-09-24 | Steel strip-reinforced trapeziform spiral corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490901.3A CN104329515A (en) | 2014-09-24 | 2014-09-24 | Steel strip-reinforced trapeziform spiral corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104329515A true CN104329515A (en) | 2015-02-04 |
Family
ID=52404288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410490901.3A Pending CN104329515A (en) | 2014-09-24 | 2014-09-24 | Steel strip-reinforced trapeziform spiral corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104329515A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5007462A (en) * | 1985-02-25 | 1991-04-16 | Shiro Kanao | Synthetic resin underground pipe having high pressure-withstanding capability |
| US5284185A (en) * | 1988-12-27 | 1994-02-08 | Shiro Kanao | Pressure-resistant helical corrugated pipe and method of producing same |
| CN203215110U (en) * | 2013-04-19 | 2013-09-25 | 辽宁盛象塑料管业有限公司 | Galvanized steel strip enhanced polyethylene helical bellows |
| CN203322528U (en) * | 2013-05-23 | 2013-12-04 | 天津市宝力圣尼塑管制造有限公司 | Polyethylene steel belt corrugated pipe |
| CN103486362A (en) * | 2013-09-05 | 2014-01-01 | 鹤山联塑实业发展有限公司 | Novel steel-belt reinforced polyethylene spiral corrugated pipe structure |
| CN204267901U (en) * | 2014-09-24 | 2015-04-15 | 四川省川杭塑胶科技有限公司 | A kind of steel strip reinforced trapezoid spiral bellows |
-
2014
- 2014-09-24 CN CN201410490901.3A patent/CN104329515A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5007462A (en) * | 1985-02-25 | 1991-04-16 | Shiro Kanao | Synthetic resin underground pipe having high pressure-withstanding capability |
| US5284185A (en) * | 1988-12-27 | 1994-02-08 | Shiro Kanao | Pressure-resistant helical corrugated pipe and method of producing same |
| CN203215110U (en) * | 2013-04-19 | 2013-09-25 | 辽宁盛象塑料管业有限公司 | Galvanized steel strip enhanced polyethylene helical bellows |
| CN203322528U (en) * | 2013-05-23 | 2013-12-04 | 天津市宝力圣尼塑管制造有限公司 | Polyethylene steel belt corrugated pipe |
| CN103486362A (en) * | 2013-09-05 | 2014-01-01 | 鹤山联塑实业发展有限公司 | Novel steel-belt reinforced polyethylene spiral corrugated pipe structure |
| CN204267901U (en) * | 2014-09-24 | 2015-04-15 | 四川省川杭塑胶科技有限公司 | A kind of steel strip reinforced trapezoid spiral bellows |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20150204 |