CN104315262A - Enhanced trapezoid helical corrugated pipe - Google Patents
Enhanced trapezoid helical corrugated pipe Download PDFInfo
- Publication number
- CN104315262A CN104315262A CN201410492826.4A CN201410492826A CN104315262A CN 104315262 A CN104315262 A CN 104315262A CN 201410492826 A CN201410492826 A CN 201410492826A CN 104315262 A CN104315262 A CN 104315262A
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- Prior art keywords
- steel band
- trapezoid
- polyethylene layer
- steel
- enhanced
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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 provides an enhanced trapezoid helical corrugated pipe and aims at providing a steel band enhanced trapezoid helical corrugated pipe with high adhesive property and high pipe quality stability. The enhanced trapezoid helical corrugated pipe comprises an inner polyethylene layer (4), steel bands 6) and an outer polyethylene layer (2) which are sequentially arranged, wherein the steel bands (6) are spiral steel bands; the steel bands (6) are provided with holes (1); the inner polyethylene layer (4) and the outer polyethylene layer (2) are cross-linked with the holes (1); the cross section of each steel band (6) is of an isosceles trapezoid shape, and the ratio of top length and bottom length of each isosceles trapezoid shape is 1:(2-3); the bottoms of the steel bands (6) are provided with side lugs (3) with uniformly-reduced edge thickness; the side lugs (3) of every two adjacent steel bands (6) are superposed and overlapped together, and a connecting steel band (7) is wound between the side lugs (3) of every two adjacent steel bands (6).
Description
Technical field
The present invention relates to helical bellows technical field, provide a kind of enhancing 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, the one that the stability of high pipe workpiece quality is high strengthens trapezoid spiral bellows.
The present invention is by the following technical solutions to achieve these goals:
A kind of enhancing 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 cross section of steel band (6) is isosceles trapezoid, the ratio of the top length of isosceles trapezoid and end length is 1:2 ~ 3, steel band (3) bottom is provided with limit pin (3), limit pin (3) edge thickness evenly reduces, the corner (3) of two adjacent rings steel band (6) laminates and overlaps, be wound with between the corner (3) of two adjacent rings steel band (6) and connect steel band (7).
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, the present invention cloth hole on steel band, make interior adhering resin 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.
Two, 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/ ㎡.
Three, the limit pin between two adjacent rings shaped-steel strip is wound with connection steel band, connect the pressure of steel band both sides on the flanging pin of shaped-steel strip, plastic inner pipe is all coated by steel band, substantially increase the bulk strength of tube wall, to make between two adjacent rings shaped-steel strip not cracky seepage, expand the application area of plastics ribbon spiral bellows.
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.
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.Corner 3 edge thickness evenly reduces.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.Be provided with limit pin 3 bottom steel band 3, limit pin 3 edge thickness evenly reduces, and the corner 3 of two adjacent rings steel band 6 laminates and overlaps, and is wound with and connects steel band 7 between the corner 3 of two adjacent rings steel band 6.
Embodiment 1
A kind of enhancing trapezoid spiral bellows, it comprises 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, interior polyethylene layer 4 and outer polyethylene layers 2 are all cross-linked with hole 1, and 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 enhancing trapezoid spiral bellows, it comprises 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, interior polyethylene layer 4 and outer polyethylene layers 2 are all cross-linked with hole 1, and 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 (3)
1. one kind strengthens 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 cross section of steel band (6) is isosceles trapezoid, the ratio of the top length of isosceles trapezoid and end length is 1:2 ~ 3, steel band (3) bottom is provided with limit pin (3), limit pin (3) edge thickness evenly reduces, the corner (3) of two adjacent rings steel band (6) laminates and overlaps, be wound with between the corner (3) of two adjacent rings steel band (6) and connect steel band (7).
2. strengthen trapezoid spiral bellows according to the arbitrary described one 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.
3. one according to claim 3 strengthens trapezoid spiral bellows, it is characterized in that: between two waists of steel band, angle is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410492826.4A CN104315262A (en) | 2014-09-24 | 2014-09-24 | Enhanced trapezoid helical corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410492826.4A CN104315262A (en) | 2014-09-24 | 2014-09-24 | Enhanced trapezoid helical corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104315262A true CN104315262A (en) | 2015-01-28 |
Family
ID=52370538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410492826.4A Pending CN104315262A (en) | 2014-09-24 | 2014-09-24 | Enhanced trapezoid helical corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104315262A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402510A (en) * | 2015-12-08 | 2016-03-16 | 东营市天诚建材有限公司 | HDPE flatly sealed all-steel-belt corrugated discharging tube and production technology |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB697139A (en) * | 1950-08-17 | 1953-09-16 | Titeflex Inc | Metallic bellows, particularly for pipe expansion joints |
| JPH11241614A (en) * | 1998-02-25 | 1999-09-07 | Calsonic Corp | Flexible tube for exhaust gas pipe |
| CN1632360A (en) * | 2004-12-23 | 2005-06-29 | 蒯一希 | Multiple tube and method for preparing same |
| CN2797819Y (en) * | 2005-05-18 | 2006-07-19 | 潍坊中云机器有限公司 | Overlap type spiral corrugated pipe containing plasrtic inner pipe and steel band |
| 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 |
-
2014
- 2014-09-24 CN CN201410492826.4A patent/CN104315262A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB697139A (en) * | 1950-08-17 | 1953-09-16 | Titeflex Inc | Metallic bellows, particularly for pipe expansion joints |
| JPH11241614A (en) * | 1998-02-25 | 1999-09-07 | Calsonic Corp | Flexible tube for exhaust gas pipe |
| CN1632360A (en) * | 2004-12-23 | 2005-06-29 | 蒯一希 | Multiple tube and method for preparing same |
| CN2797819Y (en) * | 2005-05-18 | 2006-07-19 | 潍坊中云机器有限公司 | Overlap type spiral corrugated pipe containing plasrtic inner pipe and steel band |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402510A (en) * | 2015-12-08 | 2016-03-16 | 东营市天诚建材有限公司 | HDPE flatly sealed all-steel-belt corrugated discharging tube and production technology |
| CN105402510B (en) * | 2015-12-08 | 2019-03-15 | 东营市天诚建材有限公司 | The production technology of the flat sealing all-steel strip ripple delivery pipe of HDPE |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |