CN2852478Y

CN2852478Y - Corrugated pipe wall cable sheathing pipe

Info

Publication number: CN2852478Y
Application number: CN 200520120740
Authority: CN
Inventors: 周继伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-23
Filing date: 2005-12-23
Publication date: 2006-12-27
Anticipated expiration: 2015-12-23

Abstract

The utility model discloses a corrugated pipe wall cable sheathing pipe. The pipe wall is made to the sine-shaped helical corrugated pipe wall along the axial direction of a sheathing pipe, and is made of high-density polyethylene and modified carbon element. A cable sheathing pipe has the helical corrugated pipe wall so as to make the flexibility, the expandability and the radical compressive property of the sheathing pipe better than the cable sheathing pipe with the flat pipe wall. The construction and application of the cable sheathing pipe is easy, and the construction cost is saved. The strength, the toughness and the insulating dielectric property after construction are all better than the cable sheathing pipe with the flat pipe wall. The utility model can be widely applied to various geographical cable constructions, and is an ideal geographical cable sheathing pipe at present.

Description

Ripple tube wall cable sheath tube

Technical field

The utility model relates to cable sheath tube, relates in particular to a kind of tube wall and is the corrugated cable sheath tube.

Background technology

The underground cable mode of burying underground is adopted in cities and towns power transmission and distribution and industrial equipment electricity consumption basically.Prior art is, cable is set in the flat tube wall sleeve pipe of plastic cement as cable sheath tube, be embedded in then in the underground cable ditch, because cable need extend to a lot of places, inevitably to turn, therefore must be the flat tube wall sleeve pipe of plastic cement severing that can't bending, the slip joint casing joint could be realized turning, so not only increase workload, and obviously increase the construction material cost.Since can't bending, be to consider convenient transportation, and the flat tube wall sleeve pipe of existing plastic cement is generally single 6 meters long, even straight line is laid, will connect with joint equally, also increases construction cost.In addition, the radial crush resistance of the existing flat tube wall sleeve pipe of plastic cement is relatively poor, if surface subsidence takes place, this kind protecting pipe ruptures easily, is unfavorable for power transmission and distribution safety.Moreover when wearing cable, because the contact-making surface of flat tube wall internal surface of sleeve pipe and cable is many, frictional force is bigger, and wearing cable wastes time and energy.

Summary of the invention

For overcoming the above-mentioned defective of prior art; the purpose of this utility model is to provide a kind of ripple tube wall cable sheath tube; flexibility, extensibility, the radial crush resistance of cable sheath tube are improved; simultaneously; pipe length can be tailored by construction requirement; being convenient to construction, and the cable that worn of protection more effectively.

For achieving the above object, the technical solution of the utility model is, described protecting pipe, pass through extrusion process, make tube wall be continuously evenly bellows-shaped along described protecting pipe axis direction cross section, described bellows-shaped, for tube wall along axis direction be continuously, uniform jog, the protuberance of described jog is arranged in parallel, and forms the recess of a channel shaped between per two protuberances.

As a kind of preferred version, described ripple tube wall can be made into along described protecting pipe axis direction and is sine-shaped helical corrugation tube wall, and described cable sheath tube should be screwed pipe wall cable sheath tube mutually.

Described cable sheath tube, can adopt high density polyethylene (HDPE) and modification carbon element is that important raw and processed materials is made.

The utlity model has following beneficial effect:

1, since the flexible nargin of ripple tube wall greater than flat tube wall, therefore the axial pull resistance of described cable sheath tube, around song greater than flat tube wall protecting pipe.

2, because the corrugation lobes portion of ripple tube wall is domes, under the equal wall thickness situation, the radial crush resistance of described cable sheath tube can be better than existing flat tube wall protecting pipe.

3, because the protuberance in the ripple tube wall inwall does not contact with cable, and the contact area of cable and inside pipe wall is little, the more flat tube wall protecting pipe of frictional force was little when described cable sheath tube was worn cable.

4, because the bellows wall surface is long-pending greater than flat tube wall, and the more flat tube wall of cross-ventilation in the ripple tube wall protuberance inwall is good, and therefore, the radiating effect of described cable sheath tube is better than the flat tube wall protecting pipe with interior caliber.

Because described ripple tube wall cable sheath tube is functional around song, manufacturer can deposit its curling agglomerating transportation and sell; In practice of construction was used, the workmen can cut out arbitrarily according to the length of laying distance and cut a described cable sheath tube, and turned to or walk around all kinds of obstacles easily and lay, and had reduced the joint volume cost, shortened the construction work amount.Because the radial crush resistance of described cable sheath tube energy and longitudinal extension are good, under the surface subsidence situation (shock resistance is strong), be not easy fracture, more effective protection cable.Because frictional force was less when described cable sheath tube was worn cable, therefore, wear cable and be easier to relatively, when described ripple tube wall is the helical corrugation tube wall, the necessity that must use bell and spigot joint when using flat tube wall sleeve pipe is removed in the directly spiral socket of the big tubule of described cable sheath tube from.Because the radial crush resistance of described cable sheath tube can be good, bury after the ground degree of depth buried backfill soil up to specification, can directly be open to traffic accelerating construction progress.Because the good heat dissipation effect of described cable sheath tube, the heat that produces in high-low pressure cable electric power course of conveying can dispel the heat faster, thereby can the better protection cable.Because the basic non junction of described cable sheath tube, thereby avoided using center tap infiltration phenomenon with burying.

Description of drawings

Fig. 1 is the outline drawing of the utility model helical corrugation tube wall cable sheath tube.

Fig. 2 is the tube wall sectional view of the utility model helical corrugation tube wall cable sheath tube.

Fig. 3 is that the utility model helical corrugation tube wall cable sheath tube wears the cable schematic diagram;

Fig. 4 is that the direct helical casing map interlinking of the big tubule of the utility model helical corrugation tube wall cable sheath tube shows;

Wherein accompanying drawing identifies:

Tube wall 1, protuberance 12, hollow bulb 13, large-diameter pipe 3, small-bore pipe 4;

Embodiment.

As shown in Figure 1, 2, the utility model helical corrugation tube wall cable sheath tube adopts the CFRP carbon materials to make or PVC makes.It comprises described ripple tube wall, and tube wall 1 is the sine bellows shape, and described sine bellows shape constitutes the external screw-thread shape continuously along described protecting pipe axis direction.

As shown in Figure 3, when described helical corrugation tube wall cable sheath tube wore cable, protuberance 12 did not contact cable contact with penetrating, and makes cable wear construction easily, and the hollow bulb 13 of protuberance 12 is beneficial to described cable sheath tube to wearing the heat radiation of cable simultaneously; In addition, ripple tube wall 1 is can be relatively crooked to be laid, and removes the necessity that must use bent sub when using flat tube wall sleeve pipe from.

As shown in Figure 4, the necessity that must use bell and spigot joint when using flat tube wall sleeve pipe is removed in described helical corrugation tube wall cable sheath tube large-diameter pipe 3 and directly spiral socket of small-bore pipe 4 from.

Described helical corrugation tube wall cable sheath tube is take high density polyethylene (HDPE) and modifying carbon as primary raw material, Adopt unique rotary extrusion explained hereafter moulding. Its distinctive helical corrugation tube wall structure makes it to execute easily The worker uses, and saves construction cost, and the radial crushing strength after construction, toughness, insulative dielectric performance The aspect all is better than flat tube wall cable sheath tube, and possesses equally the distortion of being not easy, lightweight, fire-retardant, corrosion resistant The multiple advantages such as erosion property, heatproof, life-span length, this kind product can be widely used in the high and low pressure power cable Bury underground, city street lamp circuit ground covering project, electric railway electric power, communication cable lay ground covering project, The project for construction and upgrading of highway electric power, communications facility, construction of residential quarters engineering and park and large-scale The underground cable engineering of public place of entertainment is present desirable underground cable sheath tubing.

Claims

1, a kind of ripple tube wall cable sheath tube, comprise tube wall, it is characterized in that, described tube wall is for being continuously evenly bellows-shaped along described protecting pipe axis direction cross section, described bellows-shaped, for tube wall along axis direction be continuously, uniform jog, the protuberance of described jog is arranged in parallel, and forms the recess of a channel shaped between per two protuberances.

2, a kind of ripple tube wall cable sheath tube according to claim 1 is characterized in that, described ripple tube wall can be made into along described protecting pipe axis direction and is the sinusoidal waveform tube wall.

3, a kind of ripple tube wall cable sheath tube according to claim 1 and 2, it is characterized in that, described ripple tube wall can be made into along described protecting pipe axis direction and is sine-shaped helical corrugation tube wall, and described cable sheath tube should be screwed pipe wall cable sheath tube mutually.