CN104022481A - Sand plastic-steel composite cable conduit with thread groove - Google Patents
Sand plastic-steel composite cable conduit with thread groove Download PDFInfo
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- CN104022481A CN104022481A CN201410299876.0A CN201410299876A CN104022481A CN 104022481 A CN104022481 A CN 104022481A CN 201410299876 A CN201410299876 A CN 201410299876A CN 104022481 A CN104022481 A CN 104022481A
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- thread groove
- quartz sand
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- inner pipe
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Abstract
The invention relates to a sand plastic-steel composite cable conduit with a thread groove. The sand plastic-steel composite cable conduit comprises an inner pipe, wherein the outer surface of the inner pipe is continuously provided with a thread groove along the axial direction of the inner pipe, a quartz sand resin mixed layer is arranged in the thread groove, the outer surface of the quartz sand resin mixed layer in the thread groove is leveled with the outer surface of the inner pipe, the quartz sand resin mixed layer and the outer side surface of the inner pipe are respectively provided with a glass fiber reinforced plastic pipe which is formed by winding glass fibers which are immersed with resin. By adopting the sand plastic-steel composite cable conduit, the glass fiber reinforced plastic pipe can be tightly combined with the inner pipe integrally, so that the friction force between the inner pipe and the glass fiber reinforced plastic pipe is greatly increased, and the sliding of the inner pipe and an outer pipe can be prevented; furthermore, the outer pipe is in a smooth cylindrical shape on the surface, uniform in thickness and consistent in overall strength, so that the rigidness is increased; the quartz sand is good in heat radiating property, so that the heat radiation performance is improved, and the service life of the composite cable conduit is prolonged; in addition, the quartz sand is cheaper than the glass fiber reinforced plastics, so that the cost is greatly reduced.
Description
Technical field:
The present invention relates to a kind of burning into sand plastic-steel composite cable conduit of threaded groove.
Background technology:
On market, substantially have two large classes as the pipe material of plastic cable protection, one is thermoset plastics, and wherein taking GRP pipe as main, another kind is thermoplastics, taking PVC, polyethylene, PA tube as main.The pluses and minuses of the pipeline of these two large types of material are as follows:
The advantage in frp cable protective pipe road: (1) GRP pipe is lightweight, rigidity is high, resistance to compression and anti-settling ability are strong; (2) conductive coefficient is large, especially cable for a long time in the time of underground operation advantage more obvious; (3) heatproof is poor good, and in-40 DEG C～-150 DEG C environment, can reach 50 years service life.Frp cable protective pipe road, because the defect of technique own and illegal producer manufacture in a rough and slipshod way, serves as without alkali product with high alkali product, the factor such as adulterate; its quality is uneven; while wearing cable, cannot stand friction, the scuffing of traction steel wire, caused glass fibre delamination, cause glass fibre to be entangled on cable; twine more and more; can not advance, can not retreat, cause wearing cable failure; can not realize the object that safety is worn cable, be faced with the danger being eliminated.
The advantage of the thermoplastic pipes such as PVC, polypropylene, polyethylene is a lot, is applied in cable protection field, and outstanding feature is exactly that electrical insulating property is good, inwall smoother, easy cabling, can not cause the phenomenon of stuck cable to occur.But heat-resisting, cold-resistant have a limitation, be difficult to reach the needs of power industry technical requirement.Thermoplastic tubing is tubing more common on market above, respectively has pluses and minuses, but falls far short apart from the requirement of power industry.
At present, on market, need a kind of heat-resisting, high-strength, lightweight, corrosion resistant, fire-retardant, inner wall smooth and economical and practical cable protection pipe again badly.On market, once there is a kind of advantage of utilizing thermoplastic and thermosets, fiberglass and polypropylene are carried out to the composite cable protection pipe of organic assembling, but, what it was taked just simply makes outer tube by fiberglass, thermoplastic tube is made the way of the direct combination of inner tube, because thermoplastics is the very typical nonpolar crystalline material of one, surface tension is lower, shrinkage is large, creep-resistant property is poor, product size poor stability, easily produce buckling deformation, be difficult to be attached together with other materials, cause the middle gap that occurs of tubing of two kinds of materials, intensity is low.Even, in the process of trailing cable, inner tube can be given and hauled out, not reach the object of market demands.Afterwards, through exploitation repeatedly, by intermediate adhesive layer, the tubing of two kinds of unlike materials is combined into an entirety closely, but, in reality research and development, the shortcoming of producing tubing maximum by intermediate adhesive layer is that cohesive force does not reach regulation required shearing force and the requirement of tear-proof power, wears while drawing cable and still easily causes inner and outer tubes to divide slippage.Again afterwards, on market, occur a kind ofly by the method for offering thread groove at inner tube outer surface, the tubing of two kinds of unlike materials being combined into an entirety closely, although inner and outer tubes can be connected, but, if the slot pitch of thread groove is too small, in the inner tube outer felt of offering thread groove around being formed by glass fiber after fiberglass outer tube, anti-slip effect between inner and outer tubes is poor, if the slot pitch of thread groove is excessive, in the inner tube outer felt of offering thread groove around being formed by glass fiber after fiberglass outer tube, the out-of-flatness of outer tube-surface, in uneven thickness, outer tube thin location intensity is low, thereby affect the useful life of whole composite cable conduit.
Summary of the invention:
The present invention is in order to make up the deficiencies in the prior art, a kind of burning into sand plastic-steel composite cable conduit of threaded groove is provided, its reasonable in design, axially be provided with continuously thread groove at inner tube outer surface along inner tube, in thread groove, be provided with quartz sand mixed with resin layer, by quartz sand mixed with resin layer, thread groove is filled and led up, the outer surface of quartz sand mixed with resin layer and the outer surface of inner tube are flushed, and then be wound around at the outer surface of quartz sand mixed with resin layer and inner tube the glass reinforced plastic pipe being formed by the glass fiber of impregnated with resin, not only can make glass reinforced plastic pipe and inner tube be combined into closely as a whole, frictional force between inner tube and glass reinforced plastic pipe increases greatly, avoid inner and outer pipes slippage, and can make outer tube-surface be cylindric level and smooth setting, even thickness, outer tube bulk strength is consistent, increase rigidity, the thermal diffusivity of quartz sand own is good, strengthen heat radiation, thereby extend the useful life of whole composite cable conduit, in addition, quartz sand is cheap compared with fiberglass, greatly reduce cost, problems of the prior art are solved.
The present invention for solving the problems of the technologies described above adopted technical scheme is:
A kind of burning into sand plastic-steel composite cable conduit of threaded groove, comprise inner tube, axially be provided with continuously thread groove at inner tube outer surface along inner tube, in thread groove, be provided with quartz sand mixed with resin layer, the outer surface of the quartz sand mixed with resin layer in described thread groove and the outer surface of inner tube flush, and are provided with the glass reinforced plastic pipe being wound by the glass fiber of impregnated with resin at the outer surface of quartz sand mixed with resin layer and inner tube.
The cross section of described thread groove is dovetail groove.
Described inner tube is a thermoplastic pipes.
The present invention adopts such scheme, reasonable in design, axially be provided with continuously thread groove at inner tube outer surface along inner tube, in thread groove, be provided with quartz sand mixed with resin layer, by quartz sand mixed with resin layer, thread groove is filled and led up, the outer surface of quartz sand mixed with resin layer and the outer surface of inner tube are flushed, and then be wound around at the outer surface of quartz sand mixed with resin layer and inner tube the glass reinforced plastic pipe being formed by the glass fiber of impregnated with resin, not only can make glass reinforced plastic pipe and inner tube be combined into closely as a whole, frictional force between inner tube and glass reinforced plastic pipe increases greatly, avoid inner and outer pipes slippage, and can make outer tube-surface be cylindric level and smooth setting, even thickness, outer tube bulk strength is consistent, increase rigidity, the thermal diffusivity of quartz sand own is good, strengthen heat radiation, thereby extend the useful life of whole composite cable conduit, in addition, quartz sand is cheap compared with fiberglass, greatly reduce cost.
Brief description of the drawings:
Fig. 1 is structural representation of the present invention.
In figure, 1, inner tube, 2, thread groove, 3, glass reinforced plastic pipe, 4, quartz sand mixed with resin layer.
Embodiment:
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, the present invention will be described in detail.
As shown in Figure 1, a kind of burning into sand plastic-steel composite cable conduit of threaded groove, comprise inner tube 1, axially be provided with continuously thread groove 2 at inner tube 1 outer surface along inner tube, in thread groove 2, be provided with quartz sand mixed with resin layer 4, the outer surface of quartz sand mixed with resin layer 4 and the outer surface of inner tube 1 in described thread groove 2 flush, be provided with the glass reinforced plastic pipe 3 being wound by the glass fiber of impregnated with resin at the outer surface of quartz sand mixed with resin layer 4 and inner tube 1, can make glass reinforced plastic pipe 3 outer surfaces that are wound by the glass fiber of impregnated with resin be cylindric level and smooth setting, make outer tube even thickness, outer tube bulk strength is consistent.
The cross section of described thread groove 2 is dovetail groove.After quartz sand mixed with resin layer 4 solidifies in thread groove 2, be difficult for deviating from from thread groove 2, greatly increased the pulling capacity between quartz sand mixed with resin layer 4 and inner tube 1, greatly improved the bulk strength of composite cable conduit.
Described inner tube 1 is a thermoplastic pipes.
Adopt the burning into sand plastic-steel composite cable conduit of threaded groove of the present invention, reasonable in design, axially be provided with continuously thread groove 2 at inner tube 1 outer surface along inner tube 1, in thread groove 2, be provided with quartz sand mixed with resin layer 4, by quartz sand mixed with resin layer 4, thread groove 2 is filled and led up, the outer surface of quartz sand mixed with resin layer 4 and the outer surface of inner tube 1 are flushed, and then be wound around at the outer surface of quartz sand mixed with resin layer 4 and inner tube 1 glass reinforced plastic pipe 3 being formed by the glass fiber of impregnated with resin, not only can make glass reinforced plastic pipe 3 and inner tube 1 be combined into closely as a whole, frictional force between inner tube 1 and glass reinforced plastic pipe 3 increases greatly, avoid inner and outer pipes slippage, and can make outer tube-surface be cylindric level and smooth setting, even thickness, outer tube bulk strength is consistent, increase rigidity, the thermal diffusivity of quartz sand own is good, strengthen heat radiation, thereby extend the useful life of whole composite cable conduit, in addition, quartz sand is cheap compared with fiberglass, greatly reduce cost.
Above-mentioned embodiment can not be served as limiting the scope of the invention, and for those skilled in the art, any alternate modification that embodiment of the present invention is made or conversion all drop in protection scope of the present invention.
The present invention does not describe part in detail, is those skilled in the art of the present technique's known technology.
Claims (3)
1. the burning into sand plastic-steel composite cable conduit of a threaded groove, it is characterized in that: comprise inner tube, axially be provided with continuously thread groove at inner tube outer surface along inner tube, in thread groove, be provided with quartz sand mixed with resin layer, the outer surface of the quartz sand mixed with resin layer in described thread groove and the outer surface of inner tube flush, and are provided with the glass reinforced plastic pipe being wound by the glass fiber of impregnated with resin at the outer surface of quartz sand mixed with resin layer and inner tube.
2. the burning into sand plastic-steel composite cable conduit of a kind of threaded groove according to claim 1, is characterized in that: the cross section of described thread groove is dovetail groove.
3. the burning into sand plastic-steel composite cable conduit of a kind of threaded groove according to claim 1 and 2, is characterized in that: described inner tube is a thermoplastic pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410299876.0A CN104022481A (en) | 2014-06-27 | 2014-06-27 | Sand plastic-steel composite cable conduit with thread groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410299876.0A CN104022481A (en) | 2014-06-27 | 2014-06-27 | Sand plastic-steel composite cable conduit with thread groove |
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| Publication Number | Publication Date |
|---|---|
| CN104022481A true CN104022481A (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410299876.0A Pending CN104022481A (en) | 2014-06-27 | 2014-06-27 | Sand plastic-steel composite cable conduit with thread groove |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398142A (en) * | 2015-12-08 | 2016-03-16 | 山东省呈祥电工电气有限公司 | High strength plastic steel pipe and manufacturing method thereof |
| CN107216535A (en) * | 2017-08-03 | 2017-09-29 | 安徽省又川新材料科技有限公司 | A kind of PE cable duct tubes inner tube and preparation method thereof |
| CN107240895A (en) * | 2017-08-03 | 2017-10-10 | 安徽省又川新材料科技有限公司 | A kind of compound MPP cable duct tubes and preparation method thereof |
| CN107312270A (en) * | 2017-08-03 | 2017-11-03 | 安徽省又川新材料科技有限公司 | A kind of PVC cable duct tubes inner tube and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218837A (en) * | 2011-03-16 | 2011-10-19 | 杨金连 | Glass reinforced plastic ribbed sand-included tube and manufacture method thereof |
| CN103434155A (en) * | 2013-08-09 | 2013-12-11 | 山东省呈祥电工电气有限公司 | Production technology of composite cable duct with thread groove |
-
2014
- 2014-06-27 CN CN201410299876.0A patent/CN104022481A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218837A (en) * | 2011-03-16 | 2011-10-19 | 杨金连 | Glass reinforced plastic ribbed sand-included tube and manufacture method thereof |
| CN103434155A (en) * | 2013-08-09 | 2013-12-11 | 山东省呈祥电工电气有限公司 | Production technology of composite cable duct with thread groove |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398142A (en) * | 2015-12-08 | 2016-03-16 | 山东省呈祥电工电气有限公司 | High strength plastic steel pipe and manufacturing method thereof |
| CN107216535A (en) * | 2017-08-03 | 2017-09-29 | 安徽省又川新材料科技有限公司 | A kind of PE cable duct tubes inner tube and preparation method thereof |
| CN107240895A (en) * | 2017-08-03 | 2017-10-10 | 安徽省又川新材料科技有限公司 | A kind of compound MPP cable duct tubes and preparation method thereof |
| CN107312270A (en) * | 2017-08-03 | 2017-11-03 | 安徽省又川新材料科技有限公司 | A kind of PVC cable duct tubes inner tube and preparation method thereof |
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Application publication date: 20140903 |