CN104022482A - Low-resistance wear-resisting sand-inclusion plastic steel compound cable guide pipe with outer thread groove - Google Patents
Low-resistance wear-resisting sand-inclusion plastic steel compound cable guide pipe with outer thread groove Download PDFInfo
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- CN104022482A CN104022482A CN201410301470.1A CN201410301470A CN104022482A CN 104022482 A CN104022482 A CN 104022482A CN 201410301470 A CN201410301470 A CN 201410301470A CN 104022482 A CN104022482 A CN 104022482A
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- thread groove
- inner tube
- quartz sand
- external screw
- screw thread
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Abstract
The invention provides a low-resistance wear-resisting sand-inclusion plastic steel compound cable guide pipe with an outer thread groove. The low-resistance wear-resisting sand-inclusion plastic steel compound cable guide pipe comprises an inner pipe, wherein the outer surface of the inner pipe is continuously provided with the outer thread groove along the axial direction of the inner pipe; the outer thread groove is internally provided with a quartz sand resin mixing layer; the outer surface of the quartz sand resin mixing layer in the outer thread groove is leveled with the outer surface of the inner pipe; glass reinforced plastic pipes which are wound by glass fibers immersed by resin are arranged on the outer side surfaces of the quartz sand resin mixing layer and the inner pipe. According to the low-resistance wear-resisting sand-inclusion plastic steel compound cable guide pipe, the surface of the outer pipe is cylindrically and smoothly arranged and the thickness is uniform; the whole strength of the outer pipe is consistent and the rigidity is increased; the heat radiation performance of quartz sand is good and the heat radiation is increased, so that the service life of the whole compound cable guide pipe is prolonged; furthermore, the quartz sand is cheaper than glass fiber reinforced plastics so that the cost is greatly reduced; the ventilation and heat radiation space is enlarged and the heat generated by a cable is easy to radiate, so that the service life of the cable is greatly prolonged and the operation safety of a power grid is guaranteed.
Description
Technical field:
The present invention relates to a kind of low-resistance wear-resistance burning into sand plastic-steel composite cable conduit with external screw thread groove.
Background technology:
Pipe material as plastic cable protection on market has two large classes substantially, and a kind of is thermoset plastics, wherein take GRP pipe as main, and another kind is thermoplastics, take 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 when underground operation advantage more obvious; (3) heatproof is poor good, and in-40 ℃～-150 ℃ 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 specification 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 a kind of very typical nonpolar crystalline material, 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 integral body 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, occurred a kind ofly by offer the method for external screw thread groove at inner tube outer surface, the tubing of two kinds of unlike materials being combined into an integral body closely, although inner and outer tubes can be connected, but, if the slot pitch of external screw thread groove is too small, in the inner tube outer felt of offering external screw 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 external screw thread groove is excessive, in the inner tube outer felt of offering external screw 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, in addition, the inner surface of its inner tube is plane, there is larger friction area, in wearing cable process, the contact area of cable and interior pipe internal surface is large, and rubbing surface is large, the frictional force producing is large, increased the power of wearing cable hauling machine, the heat producing during simultaneously cable operation is difficult for distributing, to the life requirements of cable, insulate anti-aging unfavorable.
Summary of the invention:
The present invention is in order to make up the deficiencies in the prior art, a kind of low-resistance wear-resistance burning into sand plastic-steel composite cable conduit with external screw thread groove is provided, its reasonable in design, at inner tube outer surface, along inner tube, be axially provided with continuously external screw thread groove, in thread groove, be provided with outside quartz sand mixed with resin layer, by quartz sand mixed with resin layer, external screw 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 that the glass fiber by impregnated with resin forms, 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, avoided 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, increased rigidity, the thermal diffusivity of quartz sand own is good, strengthened heat radiation, thereby extended the useful life of whole composite cable conduit, in addition, quartz sand is cheap compared with fiberglass, greatly reduce cost, at interior pipe internal surface, along inner tube, be axially provided with continuously internal thread groove, the contact area of cable and interior pipe internal surface is little, rubbing surface is little, and the frictional force of generation is little, has reduced the difficulty of wearing cable, cable and inner tube are that spiral salient point supports, concave point hovering, thereby increased the space of ventilation and heat, the dissipation of heat that cable produces is easy, has greatly extended the useful life of cable, the safety that has ensured operation of power networks, has solved problems of the prior art.
The present invention solves the problems of the technologies described above adopted technical scheme to be:
A kind of low-resistance wear-resistance burning into sand plastic-steel composite cable conduit with external screw thread groove, comprise inner tube, at interior pipe internal surface, along inner tube, be axially provided with continuously internal thread groove, at inner tube outer surface, along inner tube, be axially provided with continuously external screw thread groove, in thread groove, be provided with outside quartz sand mixed with resin layer, the outer surface of the quartz sand mixed with resin layer in described external screw thread groove and the outer surface of inner tube flush, and at the outer surface of quartz sand mixed with resin layer and inner tube, are provided with the glass reinforced plastic pipe that the glass fiber by impregnated with resin is wound.
Even thickness along the axial inner tubal wall of inner tube unanimously arranges.
The cross section of described external screw thread groove is dovetail groove.
Described inner tube is a thermoplastic pipes.
The present invention adopts such scheme, reasonable in design, at inner tube outer surface, along inner tube, be axially provided with continuously external screw thread groove, in thread groove, be provided with outside quartz sand mixed with resin layer, by quartz sand mixed with resin layer, external screw 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 that the glass fiber by impregnated with resin forms, 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, avoided 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, increased rigidity, the thermal diffusivity of quartz sand own is good, strengthened heat radiation, thereby extended the useful life of whole composite cable conduit, in addition, quartz sand is cheap compared with fiberglass, greatly reduce cost, at interior pipe internal surface, along inner tube, be axially provided with continuously internal thread groove, the contact area of cable and interior pipe internal surface is little, rubbing surface is little, the frictional force producing is little, has reduced the difficulty of wearing cable, and cable and inner tube are that spiral salient point supports, concave point hovering, thereby increased the space of ventilation and heat, the dissipation of heat that cable produces is easy, has greatly extended the useful life of cable, has ensured the safety of operation of power networks.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present invention.
In figure, 1, inner tube, 2, external screw thread groove, 3, glass reinforced plastic pipe, 4, quartz sand mixed with resin layer, 5, internal thread groove.
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 low-resistance wear-resistance burning into sand plastic-steel composite cable conduit with external screw thread groove, comprise inner tube 1, at inner tube 1 inner surface, along inner tube 1, be axially provided with continuously internal thread groove 5, at inner tube 1 outer surface, along inner tube 1, be axially provided with continuously external screw thread groove 2, in thread groove 2, be provided with outside 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 external screw thread groove 2 flush, at the outer surface of quartz sand mixed with resin layer 4 and inner tube 1, be provided with the glass reinforced plastic pipe 3 that the glass fiber by impregnated with resin is wound, glass reinforced plastic pipe 3 outer surfaces that can make the glass fiber by impregnated with resin be wound are cylindric level and smooth setting, even thickness, outer tube bulk strength is consistent.
Even thickness along inner tube 1 axial inner tubal wall unanimously arranges, and can make that the composite cable conduit rigidity of making is high, strong, the anti-subsidence of foundations ability of load anti-pressure ability is strong.
The cross section of described external screw thread groove 2 is dovetail groove, after quartz sand mixed with resin layer 4 solidifies in thread groove 2 outside, be difficult for deviating from from external screw 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 composite cable conduit of the present invention, reasonable in design, at inner tube 1 outer surface, along inner tube 1, be axially provided with continuously external screw thread groove 2, in thread groove 2, be provided with outside quartz sand mixed with resin layer 4, by quartz sand mixed with resin layer 4, external screw 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 that the glass fiber by impregnated with resin forms, 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, avoided 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, increased rigidity, the thermal diffusivity of quartz sand own is good, strengthened heat radiation, thereby extended the useful life of whole composite cable conduit, in addition, quartz sand is cheap compared with fiberglass, greatly reduce cost, at inner tube 1 inner surface, along inner tube 1, be axially provided with continuously internal thread groove 5, the contact area of cable and inner tube 1 inner surface is little, rubbing surface is little, the frictional force producing is little, has reduced the difficulty of wearing cable, and cable and inner tube 1 are that spiral salient point supports, concave point hovering, thereby increased the space of ventilation and heat, the dissipation of heat that cable produces is easy, has greatly extended the useful life of cable, has ensured the safety of operation of power networks.
Above-mentioned embodiment can not be 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 (4)
1. the low-resistance wear-resistance burning into sand plastic-steel composite cable conduit with external screw thread groove, it is characterized in that: comprise inner tube, at interior pipe internal surface, along inner tube, be axially provided with continuously internal thread groove, at inner tube outer surface, along inner tube, be axially provided with continuously external screw thread groove, in thread groove, be provided with outside quartz sand mixed with resin layer, the outer surface of the quartz sand mixed with resin layer in described external screw thread groove and the outer surface of inner tube flush, and at the outer surface of quartz sand mixed with resin layer and inner tube, are provided with the glass reinforced plastic pipe that the glass fiber by impregnated with resin is wound.
2. a kind of low-resistance wear-resistance burning into sand plastic-steel composite cable conduit with external screw thread groove according to claim 1, is characterized in that: the even thickness along the axial inner tubal wall of inner tube unanimously arranges.
3. a kind of low-resistance wear-resistance burning into sand plastic-steel composite cable conduit with external screw thread groove according to claim 1 and 2, is characterized in that: the cross section of described external screw thread groove is dovetail groove.
4. a kind of low-resistance wear-resistance burning into sand plastic-steel composite cable conduit with external screw thread 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 |
|---|---|---|---|
| CN201410301470.1A CN104022482A (en) | 2014-06-27 | 2014-06-27 | Low-resistance wear-resisting sand-inclusion plastic steel compound cable guide pipe with outer thread groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410301470.1A CN104022482A (en) | 2014-06-27 | 2014-06-27 | Low-resistance wear-resisting sand-inclusion plastic steel compound cable guide pipe with outer thread groove |
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| Publication Number | Publication Date |
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| CN104022482A true CN104022482A (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410301470.1A Pending CN104022482A (en) | 2014-06-27 | 2014-06-27 | Low-resistance wear-resisting sand-inclusion plastic steel compound cable guide pipe with outer thread groove |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107312244A (en) * | 2017-08-03 | 2017-11-03 | 安徽省又川新材料科技有限公司 | A kind of MPP cable duct tubes inner tube and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001327018A (en) * | 2000-05-18 | 2001-11-22 | Yamau Co Ltd | Bellmouth for corrugated tube, and connecting structure to transverse wall thereof |
| CN2852478Y (en) * | 2005-12-23 | 2006-12-27 | 周继伟 | Corrugated pipe wall cable sheathing pipe |
| CN103427376A (en) * | 2013-08-09 | 2013-12-04 | 山东中玻管业有限公司 | Production process of sand inclusion steel-plastic composite cable duct |
| 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 CN201410301470.1A patent/CN104022482A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001327018A (en) * | 2000-05-18 | 2001-11-22 | Yamau Co Ltd | Bellmouth for corrugated tube, and connecting structure to transverse wall thereof |
| CN2852478Y (en) * | 2005-12-23 | 2006-12-27 | 周继伟 | Corrugated pipe wall cable sheathing pipe |
| CN103427376A (en) * | 2013-08-09 | 2013-12-04 | 山东中玻管业有限公司 | Production process of sand inclusion steel-plastic composite cable duct |
| 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107312244A (en) * | 2017-08-03 | 2017-11-03 | 安徽省又川新材料科技有限公司 | A kind of MPP cable duct tubes inner tube and preparation method thereof |
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Application publication date: 20140903 |