CN203309384U - Reinforcement type hollow wall winding pipe - Google Patents
Reinforcement type hollow wall winding pipe Download PDFInfo
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- CN203309384U CN203309384U CN2013202980471U CN201320298047U CN203309384U CN 203309384 U CN203309384 U CN 203309384U CN 2013202980471 U CN2013202980471 U CN 2013202980471U CN 201320298047 U CN201320298047 U CN 201320298047U CN 203309384 U CN203309384 U CN 203309384U
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Abstract
The utility model relates to a reinforcement type hollow wall winding pipe which overcomes the defects that in order to improve the strength of an existing winding-structure pipe, materials are seriously wasted and energy sources are also wasted seriously. A winding unit comprises winding outer walls and winding inner walls, wherein the winding outer walls are parallel to the winding inner walls, and the winding outer walls and the winding inner walls are made of PE. Strengthening belts perpendicular to the winding outer walls or the winding inner walls are connected between the winding outer walls and the winding inner walls. Steel belts penetrate through the strengthening belts. After the winding unit is spirally wound, the winding outer walls are mutually connected in a lap joint mode, the winding inner walls are mutually connected in a lap joint mode, the lap joint positions are filled with hot melt glue, and a hollow wall is formed between the strengthening belts in a separated mode. The strengthening belts support the winding inner walls and the winding outer walls, the steel belts penetrate through the strengthening belts, the ring stiffness of a tubular product is improved through the steel belts, and the integral stiffness of the winding pipe can also be improved. Under the premise that same ring stiffness is kept, the requirement for a plastic pipe can be lowered, and the thickness of the inner walls and the thickness of the outer walls are reduced so that the usage amount of the PE materials can be saved, and manufacturing cost can be greatly reduced.
Description
Technical field
The utility model relates to a kind of steel-plastic composite pipe, under especially a kind of prerequisite that keeps high ring rigidity, reduces the reinforced hollow spiral tube of raw material consumption.
Background technique
High-purity density polyethylene (HDPE) winding structure wall pipe is buried rain, the dirty waste pipe all generally used both at home and abroad already, has that service life is long, steady quality is reliable, an advantage such as easy to connect, good leak tightness.
Increase along with the urban population number, in the designing requirement medium caliber of buried pipeline, in continuous increasing, along with the increasing of bore, also need the larger buried degree of depth simultaneously, the ring stiffness index that these conditions all require tubing to possess more to increase, prevent from using process occurring the phenomenons such as conquassation.
As the important indicator ring stiffness of buried pipeline, to the tubing raw-material Young's modulus of production and tubing axial rotation inertia, be directly proportional, with 3 powers of pipe diameter, be inversely proportional to.In order to meet the high ring rigidity requirement, simultaneously idea reduces the raw material consumption as far as possible again, only has the Young's modulus by improving raw materials and in the situation that the approach that certain materials amount increases the tube wall rotary inertia is as far as possible implemented improvement.Because the Young's modulus of steel is far longer than high density polyethylene (HDPE), but steel easily are corroded and flexible not enough, so allow it with high density polyethylene (HDPE), be combined, design specific structural walls, are more satisfactory approach.On market, home and abroad, adopted at present the structure-wall pipe material of several steel bands and high density polyethylene (HDPE) composite winding, but the design of its composite structure wall is unreasonable, the very serious resistance to compression weak spot of existence on structure being arranged and cause tubing integral body is not a high-intensity overall structure, also have steel band and plastics do not combine to ring stiffness do not play the effect, yet by the plastics of steel band outer cladding, do not form self-enclosed and cause steel band to be corroded and separate with plastics, these factors have all been destroyed the 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 compound T-shaped band spiral winding and is formed with soldered the connecing of hot melt adhesive by steel, forms the U-shaped structural walls pipeline with stiffening rib.Use T-shaped band spiral winding, make on band the position intensity with the T bar band higher, and the position between band and band becomes the weak part of pipeline.The outside of pipeline forms dentation structure, and in buried, the easy deposit cognition in dentation position is pushed the column position of T bar band, and the tube wall of pipeline is caused to lateral extrusion, affects the stability of pipeline.
Summary of the invention
The utility model has solved existing winding structure pipe for improving intensity, waste of material is serious, also cause the serious defect of energy waste, a kind of reinforced hollow spiral tube is provided, hollow wall inside is provided with steel band and strengthens, meet under the prerequisite of winding structure pipe intensity, save the PE material, save the energy that adds man-hour.
The utility model has also solved in the prior art defect that has affected the tubing stability in use when steel band and plastics are combined, a kind of reinforced hollow spiral tube is provided, steel band is in the self-enclosed structure of plastics, both improved the ring stiffness of tubing, possessed again all advantages of plastic tube, and guaranteed the stability of pipe structure.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of reinforced hollow spiral tube, by the winding unit spirality, be entwined, between adjacent winding unit, fill sealing by hot melt adhesive, wherein, winding unit comprises the parallel winding outer wall that PE makes and is wound around inwall, be wound around outer wall and be wound around between inwall the reinforcing strip that is connected with vertical winding outer wall or is wound around inwall, the inside of reinforcing strip is installed with steel band, after the winding unit spirality is wound around, being wound around outer wall overlaps mutually, being wound around inwall overlaps mutually, lap-joint fills by hot melt adhesive, reinforcing strip and reinforcing strip are divided into hollow wall.Be wound around outer wall and be wound around inwall and be parallel to each other, after spiral winding, form respectively outer wall and the inwall of tubing, reinforcing strip becomes the supporting element that supports the winding inwall and be wound around outer wall, and reinforcing strip inside is installed with steel band, by steel band, improve the ring stiffness of tubing, also can improve the rigidity of the integral body of entwining tube; Reinforcing strip inside wears steel band, and structure can reduce the requirement of moulding pipe under the prerequisite of the identical ring stiffness of maintenance, attenuate inside and outside wall thickness, thus the use amount of saving the PE material can greatly reduce fabricating cost, and can save the energy that adds man-hour.
As preferably, an end of reinforcing strip is integrative-structure with being wound around outer wall or being wound around inwall, and the other end of reinforcing strip plugs with corresponding winding inwall or winding outer wall.Reinforcing strip is one-body molded with winding outer wall or winding inwall, and the Placement of the other end of reinforcing strip for pegging graft, be convenient to the winding unit moulding.
As preferably, the end that reinforcing strip is pegged graft is the cylindrical end that diameter is large, and corresponding winding inwall or be wound around on outer wall and be provided with cutting graftage part is provided with the cylindrical groove of pegging graft with cylindrical end on cutting graftage part; Cylindrical groove has the opening that width is less than cylindrical diameter; When matching with the cylindrical groove of cutting graftage part, the cylindrical end of reinforcing strip end is filled with hot melt adhesive between the surface of contact of cylindrical end and cylindrical groove.Cutting graftage part is set and can guarantees that this connection part has enough intensity; Cylindrical end and cylindrical groove assembling are more convenient, make also fairly simple; Cylindrical groove has the opening that width is little, prevents from deviating from after cylindrical end is inserted in cylindrical groove; Grafting one end of reinforcing strip also can adopt other assembly structures, such as triangle end and vee gutter, or directly adopts the structure of rectangle.
As preferably, in winding unit, have a reinforcing strip or two reinforcing strips or three reinforcing strips, after the winding unit spiral winding, reinforcing strip equates with the interval between reinforcing strip.The quantity of reinforcing strip is selected as required, and such as the diameter of tubing is large, the quantity of the reinforcing strip needed is also many, and reinforcing strip quantity is many, and the width of winding unit is just large.
As preferably, the cross section of reinforcing strip is rectangular, and the cross section of the steel band of reinforcing strip inside is rectangular, and the thickness of the PE layer that the steel band dual-side coats is identical.
As preferably, the dual-side that is wound around outer wall in winding unit is respectively arranged with lower overlap edge and upper overlap edge, and after winding unit was wound around, the upper overlap edge of adjacent winding outer wall snapped on lower overlap edge, and hot melt adhesive is filled into lap-joint; The dual-side that is wound around inwall is respectively arranged with lower overlap edge and upper overlap edge, and after winding unit was wound around, the upper overlap edge of adjacent winding inwall snapped on lower overlap edge, and hot melt adhesive is filled into lap-joint; The inner and outer wall of the tubing formed after the winding unit spirality is wound around keeps smooth.Upper overlap edge and lower overlap edge overlap mutually, by hot melt adhesive, fill after overlap joint, connect more convenient, the mode of overlap joint more easily keep the entwining tube outer wall and inwall smooth; Adopt the mode of overlap joint to make the convenient stop of hot melt adhesive.
As preferably, upper overlap edge descends on the surface of overlap edge relatively and lower overlap edge relatively go up on the surface of overlap edge and is provided with mutually identical profile of tooth.The overlap joint area that profile of tooth can improve the overlapping part hot melt adhesive is set, simultaneously the intensity of energy reinforcing strip overlapping part.
As preferably, the upper overlap edge that is wound around the outer wall both sides is flat, and lower overlap edge connects and just in time with the plane at upper overlap edge place, is staggered through bending part; The lower overlap edge that is wound around the inwall both sides is flat, and upper overlap edge connects and just in time with the plane at lower overlap edge place, is staggered through bending part.Flat means to be wound around the upper overlap edge of outer wall and the winding outer wall is co-located in a plane or the lower overlap edge of winding inwall is co-located in a plane with the winding inwall, for keeping the smooth of entwining tube inner and outer wall, the upper overlap edge that is wound around the lower overlap edge of outer wall and the is wound around inwall distance that will stagger, this position of staggering is exactly to reserve position for upper overlap edge and lower overlap edge to corresponding.
As preferably, in winding unit, be wound around the both sides of outer wall and the both sides of winding inwall and be in same position; The both sides that perhaps are wound around outer wall in winding unit are staggered with the both sides that are wound around inwall.
As preferably, be wound around outer wall and be wound around between inwall and set up one deck midfeather, the surface that midfeather is wound around outer wall relatively arranges the cutting graftage part with cylindrical groove, this cutting graftage part plugs with the reinforcing strip that is wound around outer wall, the surface that midfeather is wound around inwall relatively arranges reinforcing strip, and this reinforcing strip plugs with the cutting graftage part be wound around on inwall.Three layers of winding can form the high ring rigidity entwining tube, also can expand and form more multi-layered superelevation ring stiffness entwining tube.
Being wound around the thickness of outer wall and the thickness of winding inwall can be decided by the production standard of product or the design standard in the field of use.
The beneficial effects of the utility model are: be wound around outer wall and be parallel to each other with the winding inwall, after spiral winding, form respectively outer wall and the inwall of tubing, reinforcing strip becomes the supporting element that supports the winding inwall and be wound around outer wall, and reinforcing strip inside is installed with steel band, by steel band, improve the ring stiffness of tubing, also can improve the rigidity of the integral body of entwining tube; Reinforcing strip inside wears steel band, and structure can reduce the requirement of moulding pipe under the prerequisite of the identical ring stiffness of maintenance, attenuate inside and outside wall thickness, thus the use amount of saving the PE material can greatly reduce fabricating cost, and can save the energy that adds man-hour.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the utility model;
Fig. 2 is a kind of sectional view of the utility model;
Fig. 3 is a kind of decomposing schematic representation of the utility model;
Fig. 4 is the axial sectional view of a kind of tube wall of the utility model;
Fig. 5 is the axial sectional view of the another kind of tube wall of the utility model;
Fig. 6 is the third structural representation of the utility model;
Fig. 7 is the decomposing schematic representation of the utility model structure shown in Figure 6;
In figure: 1, winding unit, 2, hot melt adhesive, 3, be wound around outer wall, 4, upper overlap edge, 5, reinforcing strip, 6, cylindrical end, 7, steel band, 8, bending part, 9, lower overlap edge, 10, opening, 11, cutting graftage part, 12, cylindrical groove, 13, be wound around inwall, 14, midfeather.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: a kind of reinforced hollow spiral tube (referring to accompanying drawing 1 accompanying drawing 2), by winding unit 1 spirality, be entwined, and between adjacent winding unit, fill sealing by hot melt adhesive 2.Winding unit comprises parallel winding outer wall 3 and the winding inwall 13 that PE makes, and the thickness that is wound around outer wall is less than the thickness that is wound around inwall.Be wound around outer wall and be wound around between inwall the reinforcing strip 5 that is connected with vertical winding outer wall and is wound around inwall, the inside of reinforcing strip is installed with steel band 7.One end of reinforcing strip and the perpendicular integrative-structure that is of winding outer wall, the other end of reinforcing strip is cylindrical end 6.The cross section of reinforcing strip is rectangular, and the cross section of the steel band of reinforcing strip inside is rectangular, the thickness identical (referring to accompanying drawing 3) of the PE layer that the steel band dual-side coats, and the diameter of cylindrical end is greater than the width of reinforcing strip intermediate portion.Be wound around on inwall and be provided with on 11， cutting graftage part, cutting graftage part and be provided with the cylindrical groove 12 matched with cylindrical end, on cylindrical groove, have the opening 10 that a width is less than the cylindrical groove diameter, the width in the middle of opening and reinforcing strip is suitable.The reinforcing strip that is wound around outer wall in winding unit and is wound around between inwall is three, and three reinforcing strips are parallel to each other, and form entwining tube after the winding unit spiral winding, are divided into hollow wall between reinforcing strip and reinforcing strip.When the cylindrical end of reinforcing strip end is inserted in cylindrical groove, between surface of contact, fill hot melt adhesive.The two ends that are wound around outer wall are respectively arranged with overlap edge 4 and lower overlap edge 9, and upper overlap edge is that flat is co-located in a plane with being wound around outer wall, and lower overlap edge is staggered by bending part 8 and the plane that is wound around the wall place; The two ends that are wound around inwall are respectively arranged with lower overlap edge 9 and upper overlap edge 4, and lower overlap edge is that flat is co-located in a plane with being wound around inwall, and upper overlap edge is staggered by bending part 8 and the plane that is wound around the inwall place.After the winding unit spiral winding, upper overlap edge snaps on lower overlap edge, on two surfaces of overlap joint, is provided with the profile of tooth of mutually coincideing, and hot melt adhesive is filled at the position at overlap joint after overlap joint.After the winding unit spiral winding, upper overlap edge snaps on lower overlap edge, and it is smooth that the inner and outer wall of the tubing of formation keeps.The both sides that are wound around outer wall in winding unit are in same position (referring to accompanying drawing 4) with the both sides that are wound around inwall.
Embodiment 2: a kind of reinforced hollow spiral tube (referring to accompanying drawing 5) with the difference in embodiment 1, be that the both sides that are wound around outer wall in winding unit are staggered with the both sides that are wound around inwall, and the position of staggering just in time differs the distance of a reinforcing strip.
Embodiment 3: a kind of super reinforced hollow spiral tube (referring to accompanying drawing 6), and the difference in embodiment 1,2 is to be wound around outer wall and is wound around between inwall has set up one deck midfeather 14, the surface that midfeather is wound around outer wall relatively arranges the cutting graftage part with cylindrical groove, this cutting graftage part plugs with the reinforcing strip that is wound around outer wall, the surface that midfeather is wound around inwall relatively arranges reinforcing strip, and this reinforcing strip plugs with the cutting graftage part be wound around on inwall.The two ends of midfeather are respectively arranged with overlap edge and lower overlap edge, and in winding process, the overlapping part of midfeather all staggers with the overlapping part of the overlapping part that is wound around outer wall and winding inwall, and all the other structures are with reference to embodiment 1.
Above-described embodiment is three kinds of preferred version of the present utility model, not the utility model is done to 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 (10)
1. reinforced hollow spiral tube, by the winding unit spirality, be entwined, between adjacent winding unit, fill sealing by hot melt adhesive, it is characterized in that the parallel winding outer wall that winding unit comprises that PE makes and be wound around inwall, be wound around outer wall and be wound around between inwall the reinforcing strip that is connected with vertical winding outer wall or is wound around inwall, the inside of reinforcing strip is installed with steel band, after the winding unit spirality is wound around, being wound around outer wall overlaps mutually, being wound around inwall overlaps mutually, lap-joint fills by hot melt adhesive, and reinforcing strip and reinforcing strip are divided into hollow wall.
2. reinforced hollow spiral tube according to claim 1, is characterized in that an end of reinforcing strip and winding outer wall or winding inwall are integrative-structure, and the other end of reinforcing strip plugs with corresponding winding inwall or winding outer wall.
3. reinforced hollow spiral tube according to claim 2, it is characterized in that the end that reinforcing strip is pegged graft is the cylindrical end that diameter is large, on corresponding winding inwall or winding outer wall, be provided with cutting graftage part, on cutting graftage part, be provided with the cylindrical groove of pegging graft with cylindrical end; Cylindrical groove has the opening that width is less than cylindrical diameter; When matching with the cylindrical groove of cutting graftage part, the cylindrical end of reinforcing strip end is filled with hot melt adhesive between the surface of contact of cylindrical end and cylindrical groove.
4. reinforced hollow spiral tube according to claim 1, is characterized in that in winding unit having a reinforcing strip or two reinforcing strips or three reinforcing strips, and after the winding unit spiral winding, reinforcing strip equates with the interval between reinforcing strip.
5. according to claim 1 or 2 or 3 or 4 described reinforced hollow spiral tubes, it is characterized in that the cross section of reinforcing strip is rectangular, the cross section of the steel band of reinforcing strip inside is rectangular, and the thickness of the PE layer that the steel band dual-side coats is identical.
6. according to claim 1 or 2 or 3 or 4 described reinforced hollow spiral tubes, it is characterized in that the dual-side that is wound around outer wall in winding unit is respectively arranged with lower overlap edge and upper overlap edge, after winding unit was wound around, the upper overlap edge of adjacent winding outer wall snapped on lower overlap edge, and hot melt adhesive is filled into lap-joint; The dual-side that is wound around inwall is respectively arranged with lower overlap edge and upper overlap edge, and after winding unit was wound around, the upper overlap edge of adjacent winding inwall snapped on lower overlap edge, and hot melt adhesive is filled into lap-joint; The inner and outer wall of the tubing formed after the winding unit spirality is wound around keeps smooth.
7. reinforced hollow spiral tube according to claim 6, is characterized in that overlap edge descends on the surface of overlap edge relatively and lower overlap edge relatively go up on the surface of overlap edge and is provided with mutually identical profile of tooth.
8. reinforced hollow spiral tube according to claim 6, the upper overlap edge that it is characterized in that being wound around the outer wall both sides is flat, lower overlap edge connects and just in time with the plane at upper overlap edge place, is staggered through bending part; The lower overlap edge that is wound around the inwall both sides is flat, and upper overlap edge connects and just in time with the plane at lower overlap edge place, is staggered through bending part.
9. according to claim 1 or 2 or 3 or 4 described reinforced hollow spiral tubes, it is characterized in that the both sides that are wound around outer wall in winding unit are in same position with the both sides that are wound around inwall; The both sides that perhaps are wound around outer wall in winding unit are staggered with the both sides that are wound around inwall.
10. according to claim 1 or 2 or 3 or 4 described reinforced hollow spiral tubes, it is characterized in that being wound around outer wall and be wound around between inwall and set up one deck midfeather, the surface that midfeather is wound around outer wall relatively arranges the cutting graftage part with cylindrical groove, this cutting graftage part plugs with the reinforcing strip that is wound around outer wall, the surface that midfeather is wound around inwall relatively arranges reinforcing strip, and this reinforcing strip plugs with the cutting graftage part be wound around on inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202980471U CN203309384U (en) | 2013-05-28 | 2013-05-28 | Reinforcement type hollow wall winding pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202980471U CN203309384U (en) | 2013-05-28 | 2013-05-28 | Reinforcement type hollow wall winding pipe |
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| Publication Number | Publication Date |
|---|---|
| CN203309384U true CN203309384U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013202980471U Expired - Lifetime CN203309384U (en) | 2013-05-28 | 2013-05-28 | Reinforcement type hollow wall winding pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337979A (en) * | 2016-07-27 | 2017-01-18 | 上海瑞皇管业科技有限公司 | Stressed skin double-layer winding pipe |
| CN106870922A (en) * | 2017-04-09 | 2017-06-20 | 贵州枫叶管业有限公司 | A kind of HDPE hollow wall plastic-steel windings |
-
2013
- 2013-05-28 CN CN2013202980471U patent/CN203309384U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337979A (en) * | 2016-07-27 | 2017-01-18 | 上海瑞皇管业科技有限公司 | Stressed skin double-layer winding pipe |
| CN106870922A (en) * | 2017-04-09 | 2017-06-20 | 贵州枫叶管业有限公司 | A kind of HDPE hollow wall plastic-steel windings |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |