CN104022480A - Low-resistance wear-proof plastic-steel composite cable guide with outer thread grooves - Google Patents
Low-resistance wear-proof plastic-steel composite cable guide with outer thread grooves Download PDFInfo
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- CN104022480A CN104022480A CN201410298899.XA CN201410298899A CN104022480A CN 104022480 A CN104022480 A CN 104022480A CN 201410298899 A CN201410298899 A CN 201410298899A CN 104022480 A CN104022480 A CN 104022480A
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- inner pipe
- inner tube
- cable
- steel composite
- composite cable
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Abstract
The invention provides a low-resistance wear-proof plastic-steel composite cable guide with outer thread grooves. The plastic-steel composite cable guide comprises an inner pipe, wherein outer thread grooves are continuously arranged on the outer surface of the inner pipe along the axial direction of the inner pipe; inner thread grooves are continuously arranged on the inner surface of the inner pipe along the axial direction of the inner pipe; a glass steel pipe formed by winding a glass filament soaked in resin is arranged on the outside surface of the inner pipe provided with the outer thread grooves. The plastic-steel composite cable guide has the beneficial effects that the plastic-steel composite cable guide is reasonable in structure design; the glass steel pipe formed by winding the glass filament and the inner pipe can be closely bonded to form a whole; the friction between the glass steel pipe and the inner pipe is greatly increased, thus avoiding separation of the inner and outer pipes after enduring forces; as the inner thread grooves are continuously arranged on the inner surface of the inner pipe along the axial direction of the inner pipe, the contact area of a cable and the inner surface of the inner pipe is small, the friction surface is small, and the generated friction is small, thus reducing the difficulty of cable threading; the cable and the inner pipe are of spiral convex point support and spiral concave point suspension, thus enlarging the space of ventilation and heat dissipation, enabling the heat generated by the cable to be dissipated easily, greatly prolonging the service life of the cable and guaranteeing the safety of power grid operation.
Description
Technical field:
The present invention relates to a kind of low-resistance wear-resistance plastic-steel composite cable conduit with external screw thread 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 that some are by inner tube outer surface hacking, the tubing of two kinds of unlike materials is combined into closely an entirety by the method for grooving and burning into sand, grooving is taken a lot of work, bothersome, effort, although inner and outer tubes can be connected, but, the inner surface of its inner tube is plane, there is larger friction area, wearing in cable process, the contact area of cable and interior pipe internal surface is large, rubbing surface is large, the frictional force producing is large, increase the power of wearing cable hauling machine, the heat producing when cable operation is simultaneously 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 plastic-steel composite cable conduit with external screw thread groove is provided, its reasonable in design, axially be provided with continuously external screw thread groove at inner tube outer surface along inner tube, and then be wound around the glass fiber of impregnated with resin outward in inner tube, the glass reinforced plastic pipe that glass fiber is wound and inner tube can be combined into as a whole closely, and the frictional force between glass reinforced plastic pipe and inner tube increases greatly, have avoided stressed rear inner and outer pipes to separate; Axially be provided with continuously internal thread groove at interior pipe internal surface along inner tube, 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 for solving the problems of the technologies described above adopted technical scheme is:
A kind of low-resistance wear-resistance plastic-steel composite cable conduit with external screw thread groove, comprise inner tube, axially be provided with continuously external screw thread groove at inner tube outer surface along inner tube, axially be provided with continuously internal thread groove at interior pipe internal surface along inner tube, be provided with at the inner tube outer surface of offering external screw thread groove the glass reinforced plastic pipe being wound by the glass fiber of impregnated with resin.
Even thickness along the axial inner tubal wall of inner tube unanimously arranges.
Described inner tube is a thermoplastic pipes.
The outer surface of described glass reinforced plastic pipe is cylindric level and smooth setting along its length.
The outer surface of described glass reinforced plastic pipe is concavo-convex in the shape of a spiral setting along its length.
The present invention adopts such scheme, reasonable in design, axially be provided with continuously external screw thread groove at inner tube outer surface along inner tube, and then be wound around the glass fiber of impregnated with resin outward in inner tube, the glass reinforced plastic pipe that glass fiber is wound and inner tube can be combined into as a whole closely, frictional force between glass reinforced plastic pipe and inner tube increases greatly, has avoided stressed rear inner and outer pipes to separate; Axially be provided with continuously internal thread groove at interior pipe internal surface along inner tube, 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 to wear the power of cable hauling machine, reduce the difficulty of wearing cable, cable and inner tube are that spiral salient point supports, concave point hovering, thus the space that has increased ventilation and heat, and the dissipation of heat that cable produces is easy, greatly extend the useful life of cable, ensured the safety of operation of power networks.
Brief description of the drawings:
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
In figure, 1, inner tube, 2, external screw thread groove, 3, glass reinforced plastic pipe, 4, 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.
Embodiment 1:
As shown in Figure 1, a kind of low-resistance wear-resistance plastic-steel composite cable conduit with external screw thread groove, comprise inner tube 1, axially be provided with continuously external screw thread groove 2 at inner tube 1 outer surface along inner tube 1, axially be provided with continuously internal thread groove 4 at inner tube 1 inner surface along inner tube 1, be provided with at inner tube 1 outer surface of offering external screw thread groove 2 glass reinforced plastic pipe 3 being wound by the glass fiber of impregnated with resin.
Even thickness along inner tube 1 axial inner tubal wall unanimously arranges.Can make that the conduit stiffness of making is high, load anti-pressure ability strong, anti-subsidence of foundations ability is strong.
Described inner tube 1 is a thermoplastic pipes.
The outer surface of described glass reinforced plastic pipe 3 is cylindric level and smooth setting along its length.
This composite cable conduit has indefinite size, can be according to the random measured length of construction requirement, and the method that breaks traditions Inner pipe 1 need not be enclosed within on mould.Inner of the present invention manages 1 endless, and the plexiglas steel pipe 3 being wound around in production process also can infinitely lengthen with Inner length of tube, and the present invention saves time, and saves original technique and moves back the pipe time, and economize mould.
Embodiment 2:
As shown in Figure 2, the difference of the present embodiment and embodiment 1 is: the outer surface of described glass reinforced plastic pipe 3 is concavo-convex in the shape of a spiral setting along its length, and other is identical with embodiment 1.
In sum, adopt composite cable conduit of the present invention, reasonable in design, axially be provided with continuously external screw thread groove 2 at inner tube 1 outer surface along inner tube 1, and then at the glass fiber of the outer winding impregnated with resin of inner tube 1, glass reinforced plastic pipe 3 and the inner tube 1 forming after glass fiber thermosetting can be combined into as a whole closely, and the frictional force between glass reinforced plastic pipe 3 and inner tube 1 increases greatly, avoided stressed rear inner and outer pipes to separate; Axially be provided with continuously internal thread groove 4 at inner tube 1 inner surface along inner tube 1, the contact area of cable and inner tube 1 inner surface is little, and rubbing surface is little, and the frictional force of generation is little, reduce to wear the power of cable hauling machine, reduce the difficulty of wearing cable,, cable and inner tube 1 are that spiral salient point supports, concave point hovering, thereby increase 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 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 (5)
1. the low-resistance wear-resistance plastic-steel composite cable conduit with external screw thread groove, it is characterized in that: comprise inner tube, axially be provided with continuously external screw thread groove at inner tube outer surface along inner tube, axially be provided with continuously internal thread groove at interior pipe internal surface along inner tube, be provided with at the inner tube outer surface of offering external screw thread groove the glass reinforced plastic pipe being wound by the glass fiber of impregnated with resin.
2. a kind of low-resistance wear-resistance 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 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.
4. a kind of low-resistance wear-resistance plastic-steel composite cable conduit with external screw thread groove according to claim 1, is characterized in that: the outer surface of described glass reinforced plastic pipe is cylindric level and smooth setting along its length.
5. a kind of low-resistance wear-resistance plastic-steel composite cable conduit with external screw thread groove according to claim 1, is characterized in that: the outer surface of described glass reinforced plastic pipe is concavo-convex in the shape of a spiral setting along its length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410298899.XA CN104022480A (en) | 2014-06-27 | 2014-06-27 | Low-resistance wear-proof plastic-steel composite cable guide with outer thread grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410298899.XA CN104022480A (en) | 2014-06-27 | 2014-06-27 | Low-resistance wear-proof plastic-steel composite cable guide with outer thread grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104022480A true CN104022480A (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410298899.XA Pending CN104022480A (en) | 2014-06-27 | 2014-06-27 | Low-resistance wear-proof plastic-steel composite cable guide with outer thread grooves |
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| CN (1) | CN104022480A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410731A (en) * | 2016-05-24 | 2017-02-15 | 国网山东省电力公司泰安供电公司 | Underground protection pipeline apparatus used for electric power cables, and raw material and preparation method thereof |
Citations (5)
| 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 |
| KR20110042744A (en) * | 2009-10-20 | 2011-04-27 | 정문식 | Underground pipeline joint of electric power |
| CN103419231A (en) * | 2013-08-09 | 2013-12-04 | 山东省呈祥电工电气有限公司 | Composite cable guide inner pipe outer surface grooving machine |
| 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 CN201410298899.XA patent/CN104022480A/en active Pending
Patent Citations (5)
| 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 |
| KR20110042744A (en) * | 2009-10-20 | 2011-04-27 | 정문식 | Underground pipeline joint of electric power |
| CN103419231A (en) * | 2013-08-09 | 2013-12-04 | 山东省呈祥电工电气有限公司 | Composite cable guide inner pipe outer surface grooving machine |
| 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 |
|---|---|---|---|---|
| CN106410731A (en) * | 2016-05-24 | 2017-02-15 | 国网山东省电力公司泰安供电公司 | Underground protection pipeline apparatus used for electric power cables, and raw material and preparation method thereof |
| CN106410731B (en) * | 2016-05-24 | 2019-02-05 | 国网山东省电力公司泰安供电公司 | Underground protective conduit device, raw material and preparation method for electric power cable |
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Application publication date: 20140903 |