CN203967699U - A kind of low-resistance wear-resistance plastic-steel composite cable conduit with external screw thread groove - Google Patents
A kind of low-resistance wear-resistance plastic-steel composite cable conduit with external screw thread groove Download PDFInfo
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- CN203967699U CN203967699U CN201420350511.1U CN201420350511U CN203967699U CN 203967699 U CN203967699 U CN 203967699U CN 201420350511 U CN201420350511 U CN 201420350511U CN 203967699 U CN203967699 U CN 203967699U
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- inner tube
- thread groove
- external screw
- screw thread
- resistance
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Abstract
A kind of low-resistance wear-resistance plastic-steel composite cable conduit with external screw thread groove, comprise inner tube, at inner tube outer surface, along inner tube, be axially provided with continuously external screw thread groove, at interior pipe internal surface, along inner tube, be axially provided with continuously internal thread groove, at the inner tube outer surface of offering external screw thread groove, be provided with the glass reinforced plastic pipe that the glass fiber by impregnated with resin is wound.Its reasonable in design, 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, has avoided stressed rear inner and outer pipes separated; 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.
Description
Technical field:
The utility model relates to a kind of low-resistance wear-resistance 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 that some are by inner tube outer surface hacking, the method of grooving and burning into sand is combined into an integral body closely by the tubing of two kinds of unlike materials, 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, in wearing cable process, the contact area of cable and interior pipe internal surface is large, rubbing surface is large, the frictional force producing is large, increased the power of wearing cable hauling machine, the heat producing during cable operation is simultaneously difficult for distributing, life requirements to cable, insulate anti-aging unfavorable.
Utility model content:
The utility model 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, at inner tube outer surface, along inner tube, be axially provided with continuously external screw thread groove, and then in inner tube, be wound around the glass fiber of impregnated with resin outward, 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 separated; 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 utility model is to solve the problems of the technologies described above adopted technical scheme to be:
A kind of low-resistance wear-resistance plastic-steel composite cable conduit with external screw thread groove, comprise inner tube, at inner tube outer surface, along inner tube, be axially provided with continuously external screw thread groove, at interior pipe internal surface, along inner tube, be axially provided with continuously internal thread groove, at the inner tube outer surface of offering external screw thread groove, be 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.
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 utility model adopts such scheme, reasonable in design, at inner tube outer surface, along inner tube, be axially provided with continuously external screw thread groove, and then in inner tube, be wound around the glass fiber of impregnated with resin outward, 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 separated; 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 to wear the power of cable hauling machine, reduced 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.
Accompanying drawing explanation:
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 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 utility model is elaborated.
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, at inner tube 1 outer surface, along inner tube 1, be axially provided with continuously external screw thread groove 2, at inner tube 1 inner surface, along inner tube 1, be axially provided with continuously internal thread groove 4, at inner tube 1 outer surface of offering external screw thread groove 2, be provided with the glass reinforced plastic pipe 3 that the glass fiber by impregnated with resin is wound.
Even thickness along inner tube 1 axial inner tubal wall unanimously arranges.Can make that the conduit stiffness of making is high, strong, the anti-subsidence of foundations ability of load anti-pressure 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.The utility model Inner 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 utility model 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 utility model, reasonable in design, at inner tube 1 outer surface, along inner tube 1, be axially provided with continuously external screw thread groove 2, 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 separated; At inner tube 1 inner surface, along inner tube 1, be axially provided with continuously internal thread groove 4, 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, reduced to wear the power of cable hauling machine, reduced the difficulty of wearing cable,, 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 the restriction to the utility model protection range, and for those skilled in the art, any alternate modification that the utility model execution mode is made or conversion all drop in protection range of the present utility model.
The utility model 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, at inner tube outer surface, along inner tube, be axially provided with continuously external screw thread groove, at interior pipe internal surface, along inner tube, be axially provided with continuously internal thread groove, at the inner tube outer surface of offering external screw thread groove, be 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 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 |
|---|---|---|---|
| CN201420350511.1U CN203967699U (en) | 2014-06-27 | 2014-06-27 | A kind of low-resistance wear-resistance plastic-steel composite cable conduit with external screw thread groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420350511.1U CN203967699U (en) | 2014-06-27 | 2014-06-27 | A kind of low-resistance wear-resistance plastic-steel composite cable conduit with external screw thread groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203967699U true CN203967699U (en) | 2014-11-26 |
Family
ID=51928243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420350511.1U Expired - Fee Related CN203967699U (en) | 2014-06-27 | 2014-06-27 | A kind of low-resistance wear-resistance plastic-steel composite cable conduit with external screw thread groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203967699U (en) |
-
2014
- 2014-06-27 CN CN201420350511.1U patent/CN203967699U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20190627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |