CN201126953Y

CN201126953Y - GBPVC flame-proof carbon-element thread cable sheath tube

Info

Publication number: CN201126953Y
Application number: CNU2007201049557U
Authority: CN
Inventors: 杨红云; 李定华; 陈猛; 陈�峰
Original assignee: KUNMING GUBANG TRADING CO Ltd
Current assignee: KUNMING GUBANG TRADING CO Ltd
Priority date: 2007-09-03
Filing date: 2007-09-03
Publication date: 2008-10-01
Anticipated expiration: 2017-09-03

Abstract

The utility model discloses GBPVC flame retardant carbon screw thread cable shield sleeve pipe, which comprises screw thread pipe made from the GBPVC modified material as the single-wall screw thread pipe; the shield sleeve pipe must has an arc inner wave peak, an arc outer wave peak and driving iron wire; the interior of the pipe body is the screw shape; the middle of the pipe body is arranged with a driving iron wire which penetrates the entire pipe body; one end is fixed at the outlet end of the pipe body; another end is fixed at the inlet end of the pipe body; two ends of the pipe body is previously retained with a driving iron wire which excesses the length of the pipe body; after the pipe body is buried in the earth, while driving the cable, one end of the cable is bounded to the driving iron wire of the pipe body inlet, pulling the driving iron wire from the pipe body outlet from another working well, which can drive the cable from the inlet end of the pipe body to the outlet end of the pipe body; so that the utility model achieves the protection for the GBPVC flame retardant carbon screw thread cable shield sleeve pipe.

Description

The fire-retardant carbon element threaded cable of GBPVC protecting pipe

Technical field

The utility model is the protecting pipe of going into the ground cabling about protection, and more particularly, the utility model is to change the fire-retardant carbon element threaded cable protecting pipe equipment of protecting cable into the ground cabling into about aerial cable.

Background technology

Along with socioeconomic fast development; the urban distribution network aerial cable has become people's question of common concern; in recent years; country pays much attention to environmental improvement; this makes urban electricity supply enterprise also pay attention to the cobweb phenomenon problem of the aerial cable of self powering; city cobweb phenomenon for a change; have only with aerial cable change into into lay; this change; power supply enterprise presses for the equipment that corresponding protection is put cable underground and laid, and is space, beautifying city, efficient electricity consumption, safety utilization of electric power, electrical energy saving service.

At present, urban electricity supply enterprise is turned to into ground cabling form by the aerial cable form urban distribution network, its system of laying mainly contains forms such as comb, cable trough, cable tunnel, and traditional comb, steel pipes, cement asbestos pipe, common PVC pipe and the CPVC pipes etc. of adopting more, the shortcoming of existing comb, cable trough, cable tunnel has: steel pipe poor corrosion resistance wherein, must be through special processing, prevent to produce the eddy current corrosion, and cost an arm and a leg; The cement asbestos pipe is low because of intensity, must carry out concrete strengthening in the outside, adopt the precast concrete carriage simultaneously, Heavy Weight, transportation inconvenience, the pipeline laying difficulty, and tube wall is coarse, and joint technology is undesirable, easily cause cable work well apart from can not draw away, correspondingly increased investment, in addition, cable laying, maintenance, change inconvenient, the cable heat radiation is bad, the cement asbestos pipe also contains carcinogen, do not meet environmental requirement, and common PVC pipe intensity is low, and fragility is arranged, CPVC pipe price height, cable and tube wall contact friction be big when wearing cable, and the traction difficulty is big, easily makes the damage of tube wall cable outer wall; Cable trough, cable tunnel quantities are big, cost height, poor safety performance.

Summary of the invention

The purpose of this utility model is the shortcoming that overcomes prior art, provides a kind of and has that anti-flammability, high strength, materials are few, tube wall and cable outer wall contact-making surface be little, has that traction is laborsaving, a recoil inserts tube apparatus of the function that saves time, protection cable.

The purpose of this utility model is to be achieved by following technical proposals.

Fire-retardant carbon element threaded cable protecting pipe of the present utility model comprises that with the material modified screwed pipe of making of GBPVC can only be the single wall screw pipe, and the recoil inserts pipe must have crest in the arc, the outer crest of arc and traction iron wire, be shape of threads inside and outside the described body, in the middle of body, pre-set a traction iron wire, the traction iron wire is through whole body, one end pre-fixes the port of export in body, and the other end is fixed in the entrance point of body, and the traction iron wire of reserving at the two ends of body exceeds the length of body.Body is pre-buried enter ground after, during trailing cable, cable one end need only be bundled on the traction iron wire of body import, hold the traction iron wire of body outlet from another active well, just cable can be drawn to the port of export of body from the entrance point of body.

The utility model beneficial effect compared with prior art is:

1. fire-retardant, leave naked light and extinguish immediately for 5 seconds;

2. cost is low, is 35%～45% of former technical costs;

3. arbitrarily crooked, but avoiding obstacles is optimized construction, and minimum bending radius can reach 0.6 meter;

4. pipe range, the length of every body is longer, can produce 50～300 meters long, and joint is few, uses this pipe not only to improve efficiency of construction, shortens the engineering time, saves operating expenses, buries the back underground and keeps permanent security performance, and economic benefit is improved.

5. body is light, mainly adopts GBPVC material modified, and pipe is light, is convenient to transportation and construction;

6. withstand voltage, because body is a screw thread form, thereby strengthened ring stiffness, not yielding after laying with going into;

7. corrosion resistance is good, the acid and alkali-resistance salt corrosion, and long service life is used more than 50 years with burying;

8. antivibration, anti-land subsidence, plasticity is good, and the compressive resistance height can antiseismic, land subsidence;

9. shape of threads, the contact-making surface of cable and screwed pipe is few, and under the coefficient of friction, it is easy to wear cable;

Description of drawings

Fig. 1 is a profile of the present utility model.

In Fig. 1, the 1st, the internal diameter of body, the 2nd, the external diameter of body, the 3rd, the outer crest of the arc of body, the 4th, the arc-shaped wave peak separation of body, the 5th, the wall thickness of body, the 6th, be preset in the traction iron wire in the body, the 7th, be preset in the fixing point that interior traction iron wire of body and body export, the 8th, be preset in the interior traction iron wire of body and the fixing point of body import.

Embodiment

Below in conjunction with accompanying drawing is that the utility model is further described.

In Fig. 1, GBPVC modified flame-retardant material is made body among Fig. 1, and body can only be the screwed pipe of single wall, and single wall screw can reduce contacting and friction of cable and tube wall, the single wall screw pipe is than the tubing economical with materials 45%～65% of other form, the single wall screw pipe can be arbitrarily crooked, but avoiding obstacles is optimized construction, minimum bending radius can reach 0.6 meter, because body is a screw thread form, thereby has strengthened ring stiffness, not yielding after laying with going into; In Fig. 1 body, the 1st, the internal diameter of body, the 2nd, the external diameter of body, the 3rd, the outer crest of the arc of body, the 4th, the arc-shaped wave peak separation of body, the 5th, the wall thickness of body, the 6th, be preset in the traction iron wire in the body, the 7th, be preset in the fixing point that interior traction iron wire of body and body export, the 8th, be preset in the interior traction iron wire of body and the fixing point of body import, make the fire-retardant carbon element threaded cable of the GBPVC protecting pipe of required model with GBPVC modified flame-retardant material and traction iron wire, during use, earlier with the fire-retardant carbon element threaded cable of GBPVC protecting pipe pre-buried be laid in underground, when wearing cable, one end of cable is bundled on the traction iron wire at the fire-retardant carbon element threaded cable of GBPVC protecting pipe import 8 places, from exporting 7 dragline armature (iron) silks 6, just can easily cable be drawn and put in the body, by the fire-retardant carbon element threaded cable of GBPVC protecting pipe with cable with bury ground soil property be isolated, make cable avoid contacting with the buried soil phase, thereby effectively prevent the corrosion of earth to cable, termite is bitten to cable, extraneous pressure is to the infringement of cable, simultaneously, prevent the cable run-down electricity that exposes to the sun, thereby make the fire-retardant carbon element threaded cable of GBPVC protecting pipe play the effect of conduit and protecting pipe.

Claims

1. the fire-retardant carbon element threaded cable of GBPVC protecting pipe, comprise in the single wall screw body made with GBPVC modified flame-retardant material and the pipe and preset the traction iron wire, it is characterized in that, described body can only be the single wall screw pipe, and inboard wall of tube body must have crest in the arc, and tube wall must have the outer crest of arc, is shape of threads inside and outside the body, must preset the traction iron wire in the body, preset the traction iron wire in the described body and be connected with the two ends of body.