CN104037708A - Low-resistance wear-resisting plastic-steel composite cable conduit with middle bonding layer - Google Patents
Low-resistance wear-resisting plastic-steel composite cable conduit with middle bonding layer Download PDFInfo
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- CN104037708A CN104037708A CN201410299877.5A CN201410299877A CN104037708A CN 104037708 A CN104037708 A CN 104037708A CN 201410299877 A CN201410299877 A CN 201410299877A CN 104037708 A CN104037708 A CN 104037708A
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Abstract
A low-resistance wear-resisting plastic-steel composite cable conduit with a middle bonding layer comprises an inner tube. The inner surface of the inner tube is provided with internal thread grooves continuously in the axial direction of the inner tube. The outer surface of the inner tube is coated with the middle bonding layer in the axial direction of the inner tube. A glass steel tube formed by winding glass fiber soaked in resin is arranged on the surface of the outer side of the middle bonding layer. The low-resistance wear-resisting plastic-steel composite cable conduit with the middle bonding layer is reasonable in structural design; the glass steel tube formed by winding the glass fiber and the inner tube can be closely combined into a whole, the frictional force between the glass steel tube and the inner tube is greatly increased, and separation of the inner tube and an outer tube after stress is avoided; the inner surface of the inner tube is provided with the internal thread grooves continuously in the axial direction of the inner tube, the contact area between a cable and the inner surface of the inner tube is small, the friction surface is small, generated frictional force is small, and therefore the difficulty in cable penetration is lowered; the cable and the inner tube are supported by spiral salient points and suspended above pits, so that ventilation and heat dissipation space is enlarged; since heat generated by the cable can be easily dissipated, the service life of the cable is greatly prolonged, and the running safety of a power grid is guaranteed.
Description
Technical field:
The present invention relates to a kind of low-resistance wear-resistance plastic-steel composite cable conduit with intermediate adhesive layer.
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, the tubing of two kinds of unlike materials can be combined into closely to an entirety by intermediate adhesive layer, but, the inner surface of its inner tube is plane, has larger friction area, wearing in cable process, the contact area of cable and interior pipe internal surface is large, rubbing surface is large, and the frictional force of generation is large, has increased the power of wearing cable hauling machine, the heat producing when simultaneously cable operation is difficult for distributing, life requirements to 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 intermediate adhesive layer is provided, its reasonable in design, axially be coated with one deck intermediate adhesive layer at inner tube outer surface along inner tube, and then be wound around the glass fiber of impregnated with resin outward in intermediate adhesive layer, 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 intermediate adhesive layer, comprise inner tube, axially be provided with continuously internal thread groove at interior pipe internal surface along inner tube, axially be coated with one deck intermediate adhesive layer at inner tube outer surface along inner tube, be provided with the glass reinforced plastic pipe being wound by the glass fiber of impregnated with resin at intermediate adhesive layer outer surface.
Described inner tube is a thermoplastic pipes.
The present invention adopts such scheme, reasonable in design, axially be coated with one deck intermediate adhesive layer at inner tube outer surface along inner tube, and then be wound around the glass fiber of impregnated with resin outward in intermediate adhesive layer, 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, 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 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.
Brief description of the drawings:
Fig. 1 is structural representation of the present invention.
In figure, 1, inner tube, 2, intermediate adhesive layer, 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.
As shown in Figure 1, a kind of low-resistance wear-resistance plastic-steel composite cable conduit with intermediate adhesive layer, comprise inner tube 1, axially be provided with continuously internal thread groove 4 at inner tube 1 inner surface along inner tube, axially be coated with one deck intermediate adhesive layer 2 at inner tube 1 outer surface along inner tube 1, be provided with the glass reinforced plastic pipe 3 being wound by the glass fiber of impregnated with resin at intermediate adhesive layer 2 outer surfaces.
Described inner tube 1 is a thermoplastic pipes.
Adopt composite cable conduit of the present invention, reasonable in design, axially be coated with one deck intermediate adhesive layer 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 intermediate adhesive layer 2, glass reinforced plastic pipe 3 and inner tube 1 that glass fiber is wound can be combined into as a whole closely, frictional force between glass reinforced plastic pipe 3 and inner tube 1 increases greatly, has 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, 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 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 (2)
1. the low-resistance wear-resistance plastic-steel composite cable conduit with intermediate adhesive layer, it is characterized in that: comprise inner tube, axially be provided with continuously internal thread groove at interior pipe internal surface along inner tube, axially be coated with one deck intermediate adhesive layer at inner tube outer surface along inner tube, be provided with the glass reinforced plastic pipe being wound by the glass fiber of impregnated with resin at intermediate adhesive layer outer surface.
2. a kind of low-resistance wear-resistance plastic-steel composite cable conduit with intermediate adhesive layer according to claim 1, is characterized in that: described inner tube is a thermoplastic pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410299877.5A CN104037708A (en) | 2014-06-27 | 2014-06-27 | Low-resistance wear-resisting plastic-steel composite cable conduit with middle bonding layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410299877.5A CN104037708A (en) | 2014-06-27 | 2014-06-27 | Low-resistance wear-resisting plastic-steel composite cable conduit with middle bonding layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104037708A true CN104037708A (en) | 2014-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410299877.5A Pending CN104037708A (en) | 2014-06-27 | 2014-06-27 | Low-resistance wear-resisting plastic-steel composite cable conduit with middle bonding layer |
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| CN (1) | CN104037708A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847442A (en) * | 2017-03-08 | 2017-06-13 | 河南省德立泰高压电瓷电器有限公司 | A kind of Novel fireproof Vaccum Permeating sebific duct |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2490746Y (en) * | 2001-06-19 | 2002-05-08 | 徐三男 | Light high-strength abnormal-shaped underground conduit |
| KR100601590B1 (en) * | 2006-04-13 | 2006-07-19 | 주식회사 라인엔지니어링 | A cable pulling eye using for construction public house |
| CN2852478Y (en) * | 2005-12-23 | 2006-12-27 | 周继伟 | Corrugated pipe wall cable sheathing pipe |
| CN102361280A (en) * | 2011-09-30 | 2012-02-22 | 山东省呈祥电工电气有限公司 | Composite cable duct made from glass fiber reinforced plastics (GFRP) and modified polypropylene (PP) |
-
2014
- 2014-06-27 CN CN201410299877.5A patent/CN104037708A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2490746Y (en) * | 2001-06-19 | 2002-05-08 | 徐三男 | Light high-strength abnormal-shaped underground conduit |
| CN2852478Y (en) * | 2005-12-23 | 2006-12-27 | 周继伟 | Corrugated pipe wall cable sheathing pipe |
| KR100601590B1 (en) * | 2006-04-13 | 2006-07-19 | 주식회사 라인엔지니어링 | A cable pulling eye using for construction public house |
| CN102361280A (en) * | 2011-09-30 | 2012-02-22 | 山东省呈祥电工电气有限公司 | Composite cable duct made from glass fiber reinforced plastics (GFRP) and modified polypropylene (PP) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847442A (en) * | 2017-03-08 | 2017-06-13 | 河南省德立泰高压电瓷电器有限公司 | A kind of Novel fireproof Vaccum Permeating sebific duct |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140910 |