CN202629368U - Wall pipe of steel-plastic composite winding structure - Google Patents
Wall pipe of steel-plastic composite winding structure Download PDFInfo
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- CN202629368U CN202629368U CN 201220154140 CN201220154140U CN202629368U CN 202629368 U CN202629368 U CN 202629368U CN 201220154140 CN201220154140 CN 201220154140 CN 201220154140 U CN201220154140 U CN 201220154140U CN 202629368 U CN202629368 U CN 202629368U
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Abstract
The utility model relates to a wall pipe of a steel-plastic composite winding structure and overcomes the defect that steel belts and plastic are not combined together in the prior art and do not form an integral to easily cause that the steel belts and the plastic are separated to influence the stability of pipes. The wall pipe is formed by spirally winding plastic pipes and steel belts side by side, wherein the plastic pipes are square or rectangular in cross section, the steel belts are erected radially, the interior of each plastic pipe is of a hollow structure, the shape of the hollow cross section is a square or rectangle, and a part between the spiral sections of two adjacent plastic pipes is filled with hot melting materials in a connection manner; and the steel belts are provided with a plurality of perforated holes, the hot melting materials pass through the perforated holes to connect the spiral sections of the plastic pipes at two sides and wrap the steel belts. According to the utility model, as the steel belts are provided with perforated holes and the hot melting materials are communicated through intermediate parts of the steel belts and wrap the entire steel belts, the bonding between the steel belts and the plastic pipes is firmer and is higher in strength, so that the steel belts and the plastic pipes are prevented from being separated and the stability of the pipe is guaranteed.
Description
Technical field
The utility model relates to a kind of steel-plastic composite pipe, and the steel of the low raw material consumption of especially a kind of high ring rigidity is moulded compound winding structure pipe.
Background technique
High-purity density polyethylene (HDPE) winding structure wall pipe be already all generally used both at home and abroad bury ground rain, dirty waste pipe, have long, advantages such as steady quality is reliable, easy to connect, good leak tightness service life.
Increase along with the urban population number; In continuous increasing,, also need the bigger ground degree of depth of burying in the designing requirement medium caliber of buried pipeline simultaneously along with the increasing of bore; The ring stiffness index that these conditions all require tubing to possess more to increase prevents to occur in the using process phenomenons such as conquassation.
As the important indicator ring stiffness of buried pipeline, produce raw-material Young's modulus with tubing and tubing axial rotation inertia is directly proportional, be inversely proportional to 3 powers of pipe diameter.In order to satisfy the high ring rigidity requirement, idea reduces the raw material consumption as far as possible again simultaneously, has only through the approach that improves used raw-material Young's modulus and under the situation of certain materials amount, increase the tube wall rotary inertia as far as possible and implements improvement.Because the Young's modulus of steel is far longer than high density polyethylene (HDPE), but steel are prone to be corroded and flexible deficiency, so let it combine with high density polyethylene (HDPE), design the specific structure wall, are more satisfactory approach.At present adopted the structure-wall pipe material of several kinds of steel bands and the compound winding of high density polyethylene (HDPE) on the market, home and abroad; But the design of its composite structure wall is unreasonable; The very serious resistance to compression weak spot of existence on the structure being arranged and cause tubing integral body is not the high-strength structure of an integral body; Also have steel band and plastics do not combine to ring stiffness do not play the effect; Also do not form self-enclosed by the steel band outer plastics that coats and cause steel band to be corroded and separate with plastics, these factors have all been destroyed stability of structure, and pipe structure intensity is greatly affected.
Patent Office of the People's Republic of China discloses a CN101451637A document on June 10th, 2009, name is called steel plastic composite structure wall tube, is moulded that compound T type band spiral twines and is formed by connecting with the PUR weldering steel, forms the U-shaped structural walls pipeline with stiffening rib.Use T type band spiral to twine, make that the position intensity of band T bar band is higher on the band, and the position between band and the band becomes the weak part of pipeline.The outside of pipeline forms dentation structure, and when burying ground, the easy deposit cognition in dentation position is pushed the column position of T bar band, and the tube wall of pipeline is caused lateral extrusion, influences the stability of pipeline.
Summary of the invention
The utility model has solved in the existing technology steel band and plastics and has not combined and make steel band and plastics not form an integral body; Cause steel band and plastics to be separated easily, influence the defective of the stability of tubing, provide a kind of steel to mould compound winding structure pipe; Steel band is with holes; The hot melt material is communicated with and coats whole steel band from the neutral position of steel band, improves the combination force between steel band and the plastics, guarantees the stability of tubing.
It is unreasonable that the utility model has also solved the existing technology structural design; Having very serious resistance to compression weak spot and causing tubing integral body is not the defective of the high-strength structure of an integral body; Provide a kind of steel to mould compound winding structure pipe; Rational in infrastructure, there is not the resistance to compression weak spot in integral body, has improved integral intensity.
The utility model has also solved existing technology and has used the T bar band; Make the appearance of tubing form dentation structure, the tube wall to pipeline causes lateral extrusion easily, influences the defective of the stability of pipeline; Provide a kind of steel to mould compound winding structure pipe; Tube surfaces is smooth, can not pile up object, guarantees the stability that tubing is whole.
The utility model solves the technological scheme that its technical problem adopted: a kind of steel is moulded compound winding structure pipe; Whole rounded; Steel mould compound winding structure pipe be by the cross section be square or rectangle plastic tube and steel band side by side spiral be entwined, steel band radially thirty years of age, plastic tube inside is hollow structure; The sectional shape of this hollow is square or rectangle, fills with the hot melt material between the spiral section of two adjacent plastic tubes and connects; Steel band is provided with some perforation, and the hot melt material passes spiral section and the coated steel band that perforation connects the plastic tube of both sides.Perforation is set on the steel band, makes the hot melt material pass the sidewall that perforation connects two adjacent plastic tubes, the bonding between steel band and the plastic tube is more firm, and intensity is more increased, and prevents that steel band and plastic tube are separated, the stability of assurance tubing; After ribbon spiral twines radially thirty years of age, improve the ring stiffness of tubing; Steel band and plastic tube form an integral body; The main body that spiral twines is square or the plastic tube of rectangle, and the appearance of tubing is more smooth, can be at the surface sediment object; Therefore can not cause extruding to steel band; Simultaneously guarantee that also the wall thickness of tubing is consistent, improve integral intensity, guarantee the stability that tubing is whole; The hot melt material will envelope steel band, prevents that steel band is exposed and is corroded, and prolongs the working life of steel band; Steel band will be coated by the hot melt material fully, prevents that steel band from exposing to cause corrosion to influence pipe workpiece quality; Fuse into steel band in the plastic tube internal heat, in that keep under the prerequisite of identical ring stiffness can be with the reduced thickness of plastic tube, thereby the use amount of saving the plastic tube material such as the use amount of PE, can reduce fabricating cost.
As preferably, the height of steel band is less than the thickness of pipe of plastic tube.This structure makes the dual-side up and down of steel band to be coated by the hot melt material, can not expose outside.
As preferably, the height of steel band is less than the height 6-20mm of plastic tube; The thickness of steel band is 1-4mm.The thickness of steel band and width change along with the variation of plastic tube size, and the plastic tube size increases, and the thickness and the width of steel band increase thereupon.
As preferably, the perforation on the steel band is square or trapezoidal or triangle.If leg-of-mutton perforation generally is the axis of leg-of-mutton drift angle towards tubing.
As preferably, the path position of the corresponding spiral section of its minor face of trapezoidal perforation, the large-diameter portion position of the corresponding spiral section in long limit.This structure makes when ribbon spiral twines; The I-shaped supporting structure that the dual-side of radially locating up and down of vertical edge between the perforation and perforation forms, the maximum anti-pressure ability of raising tubing, steel band twines through spiral; The structure of vertical edge deforms; Make that the vertical edge two ends are wide, perhaps the width of the outer end of vertical edge improves the ring stiffness of tubing less than the width of the inboard end of vertical edge.
A kind of scheme: the thickness of the two side of plastic tube is identical, and steel band is in the centre of two side.This is a kind of scheme, and steel band and plastic tube bond through the hot melt material fully.
Another kind of scheme: the thickness of the two side of plastic tube is different, and the thickness of a sidewall is greater than the thickness of another sidewall; The steel band hot melt is gone in the big sidewall of plastic tube thickness, the outer surface flush of the outer surface of steel band and this sidewall of plastic tube.This scheme heats direct heat with steel band in winding process fuses in the sidewall of plastic tube, between the two side, fills and the connection sealing with the hot melt material again, improves the cohesive force between steel band and the plastic tube.
As preferably, the thickness difference of plastic tube two side equates with the thickness of steel band.The thickness of the plastic material of principal security steel band both sides equates that stressed relatively more balanced, stability is higher.
As preferably, the length between the perforated edge on the steel band and the both sides of the edge of steel band is 5-15mm.Guarantee the intensity of steel band, thereby guarantee to improve after ribbon spiral twines the ring stiffness of tubing.
The beneficial effect of the utility model is: steel band is with holes, and the hot melt material is communicated with and coats whole steel band from the neutral position of steel band, and the bonding between steel band and the plastic tube is more firm, and intensity is more increased, and prevents that steel band and plastic tube are separated, the stability of assurance tubing; Rational in infrastructure, there is not the resistance to compression weak spot in integral body, has improved integral intensity, and appearance is more smooth, can therefore can not cause extruding to steel band at the surface sediment object, guarantees that the wall thickness of tubing is consistent simultaneously yet, improves integral intensity.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model;
Fig. 2 is the structural representation of a kind of plastic tube of the utility model;
Fig. 3 is the structural representation of the another kind of plastic tube of the utility model;
Fig. 4 is the structural representation of a kind of steel band of the utility model;
Among the figure: 1, plastic tube, 2, steel band, 3, the hot melt material, 4, sidewall, 5, perforation, 6, vertical edge.
Embodiment
Pass through specific embodiment below, and combine accompanying drawing, do further bright specifically the technological scheme of the utility model.
Embodiment 1: a kind of steel is moulded compound winding structure pipe (referring to accompanying drawing 1 accompanying drawing 2); Whole rounded, by the cross section be square plastic tube 1 and steel band 2 side by side spiral be entwined radially thirty years of age of steel band; Plastic tube inside is hollow structure; The sectional shape of this hollow is square, and the width of the periphery of hollow equates, fills with hot melt material 3 between the spiral section of two adjacent plastic tubes and connects.
Steel band is provided with some perforation 5 (referring to accompanying drawing 4) side by side, and boring a hole is trapezoid shaped, and the length between the perforated edge on the steel band and the both sides of the edge of steel band is 6mm.The thickness of steel band is 3mm, and the height of steel band is less than the height 10mm of plastic tube, and steel band both sides of the edge up and down is equal apart from the spacing of side about the plastic tube.When ribbon spiral twines, the path position of the corresponding spiral section of its minor face of trapezoidal perforation, the large-diameter portion position of the corresponding spiral section in long limit.Hot melt material 3 passes the sidewall 4 of the plastic tube that perforation connects both sides and envelopes steel band, the I-shaped supporting structure of the dual-side of radially locating the up and down formation of the vertical edge between the perforation and perforation.
The PE that extruder is extruded becomes square plastic tube through behind the Vacuum shaping; Plastic tube is wound on the compound molding equipment together with the steel band through punching synchronously side by side, and steel band is heated through high-frequency inductor during winding, is rotated under the drive of molding machine by the compound plastic tube of going up steel band; Steel band is in plastic tube and twines between adjacent two spiral sections that form; The spiral section of the plastic tube of steel band and both sides is combined into complete structured wall popes down through the hot melt material extruded by extruder 3 is bonding, under the continuous-winding forming on the compound molding equipment, makes tapping and moulds compound winding structure pipe, treat tubing arrival preseting length after; Cutting is rolled off the production line, and accomplishes and produces.
Embodiment 2: a kind of steel is moulded compound winding structure pipe (referring to accompanying drawing 1 accompanying drawing 3); Whole rounded; By the cross section be square plastic tube 1 and steel band 2 side by side spiral be entwined; Plastic tube is a hollow structure, and the width of the sidewall of the hollow periphery of plastic tube does not wait, and the thickness of a sidewall is greater than the thickness of another sidewall.All the other structures are with reference to embodiment 1.
Steel band is pressed to the side of plastic tube by high temperature resistant by pinch roller through the high-frequency inductor back of heating, and in the big sidewall of the thickness that makes it be embedded into plastic tube, and the outer surface of maintenance steel band and plastic tube sidewall is surperficial concordant.Down be combined into complete steel and moulding compound winding structure pipe through the PUR of being extruded by extruder 6 is bonding with the follow-up little square tube of catching up with.
Above-described embodiment is two kinds of preferred version of the utility model, is not that the utility model is done any pro forma restriction, under the prerequisite that does not exceed the technological scheme that claim puts down in writing, also has other variant and remodeling.
Claims (9)
1. a steel is moulded compound winding structure pipe; Whole rounded; It is characterized in that steel mould compound winding structure pipe be by the cross section be square or rectangle plastic tube and steel band side by side spiral be entwined, steel band radially thirty years of age, plastic tube inside is hollow structure; The sectional shape of this hollow is square or rectangle, fills with the hot melt material between the spiral section of two adjacent plastic tubes and connects; Steel band is provided with some perforation, and the hot melt material passes spiral section and the coated steel band that perforation connects the plastic tube of both sides.
2. steel according to claim 1 is moulded compound winding structure pipe, it is characterized in that the thickness of pipe of the height of steel band less than plastic tube.
3. steel according to claim 2 is moulded compound winding structure pipe, it is characterized in that the height 6-20mm of the height of steel band less than plastic tube; The thickness of steel band is 1-4mm.
4. mould compound winding structure pipe according to claim 1 or 2 or 3 described steel, it is characterized in that the perforation on the steel band is square or trapezoidal or triangle.
5. steel according to claim 4 is moulded compound winding structure pipe, it is characterized in that the path position of the corresponding spiral section of its minor face of trapezoidal perforation, the large-diameter portion position of the corresponding spiral section in long limit.
6. mould compound winding structure pipe according to claim 1 or 2 or 3 described steel, it is characterized in that the thickness of two side of plastic tube is identical, steel band is in the centre of two side.
7. mould compound winding structure pipe according to claim 1 or 2 or 3 described steel, it is characterized in that the thickness difference of the two side of plastic tube, the thickness of a sidewall is greater than the thickness of another sidewall; The steel band hot melt is gone in the big sidewall of plastic tube thickness, the outer surface flush of the outer surface of steel band and this sidewall of plastic tube.
8. steel according to claim 7 is moulded compound winding structure pipe, it is characterized in that the thickness difference of plastic tube two side equates with the thickness of steel band.
9. mould compound winding structure pipe according to claim 1 or 2 or 3 described steel, it is characterized in that the length between the both sides of the edge of perforated edge and steel band on the steel band is 5-15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220154140 CN202629368U (en) | 2012-04-12 | 2012-04-12 | Wall pipe of steel-plastic composite winding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220154140 CN202629368U (en) | 2012-04-12 | 2012-04-12 | Wall pipe of steel-plastic composite winding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202629368U true CN202629368U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220154140 Expired - Lifetime CN202629368U (en) | 2012-04-12 | 2012-04-12 | Wall pipe of steel-plastic composite winding structure |
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| CN (1) | CN202629368U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016146A (en) * | 2019-12-18 | 2020-04-17 | 广西金盛科技发展有限公司 | High-strength stretch-proof RF steel-plastic composite reinforced winding pipe and preparation method thereof |
| CN113236872A (en) * | 2021-05-27 | 2021-08-10 | 云南益华管道科技有限公司 | Steel strip welding framework mesh composite spiral corrugated pipe and production device thereof |
-
2012
- 2012-04-12 CN CN 201220154140 patent/CN202629368U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016146A (en) * | 2019-12-18 | 2020-04-17 | 广西金盛科技发展有限公司 | High-strength stretch-proof RF steel-plastic composite reinforced winding pipe and preparation method thereof |
| CN113236872A (en) * | 2021-05-27 | 2021-08-10 | 云南益华管道科技有限公司 | Steel strip welding framework mesh composite spiral corrugated pipe and production device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU TANKE MACHINERY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HE JUN Effective date: 20141017 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 311400 HANGZHOU, ZHEJIANG PROVINCE TO: 311402 HANGZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141017 Address after: Fuyang Silver Lake Golf street 311402 Hangzhou Road, Zhejiang province No. 168 Patentee after: Hangzhou Tanke Machinery Technology Co., Ltd. Address before: 311400 No. 279, Guihua West Road, Fuyang, Zhejiang 2-406, Hangzhou Patentee before: He Jun |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
| CX01 | Expiry of patent term |