CN214226560U - Novel pre-buried formula photoelectric cables - Google Patents

Abstract

The utility model provides a novel pre-buried photoelectric composite cable, which comprises an optical unit, an electric unit, a central reinforcing member, a reserved unit, and a high temperature resistant band layer, a band layer and an outer sheath which are sequentially coated outside a cable core formed by the optical unit, the electric unit, the central reinforcing member and the reserved unit; the reserved unit comprises a copper pipe, a steel wire rope arranged in the copper pipe and a copper pipe insulating layer arranged outside the copper pipe. The utility model discloses both adapt to the complicated region of environment, can lay the cable that satisfies the later stage demand through this cable again in the later stage.

Description

Novel pre-buried formula photoelectric cables

Technical Field

The utility model belongs to the technical field of the cable is made, especially relate to a novel pre-buried formula photoelectricity composite cable.

Background

The photoelectric composite cable is a cable which is formed by compounding an insulating wire core and an optical transmission unit and has the capacity of transmitting electric energy and optical communication, along with the high speed of a network, the diversification requirement is more and more urgent, the 5G technology is coming, the core part of the technology is a super-dense heterogeneous network, and the position of a base station which is one of the components of the 5G network is determined to be required to exist in any area with complex natural environment, so the requirements on the characteristics of the photoelectric composite cable and the capacity of adapting to the complex environment and the severe environment are higher and higher.

In addition, in the face of a constantly changing peripheral environment, new cables are often required to be added, namely, secondary processing is carried out on a laying site, so that the construction space is limited, time and labor are wasted, the efficiency is low, the requirement on operating personnel is high, the situations that cables are not tightly tied up, the cables between supports droop, the cables are crossed and the cables are disordered when the cables are laid secondarily, the situation that the laid cables are abraded and damaged is avoided, the service life of the cables is shortened, and potential safety hazards are brought.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel pre-buried formula photoelectricity composite cable both adapts to the complicated region of environment, can lay the cable that satisfies the later stage demand through this cable in the later stage again.

In order to achieve the above object, the technical solution of the present invention is that:

a novel pre-buried photoelectric composite cable comprises an optical unit, an electric unit, a central reinforcing member and a reserved unit, wherein a cable core formed by the optical unit, the electric unit, the central reinforcing member and the reserved unit is externally coated with a belting layer and an outer sheath in sequence.

Furthermore, the reserved unit comprises a copper pipe, a steel wire rope arranged in the copper pipe, and a copper pipe insulating layer arranged outside the copper pipe.

Preferably, the copper pipe insulating layer is an extruded cross-linked polyethylene XLPE insulating layer.

Further, a high-temperature-resistant belting layer is arranged between the belting layer and the cable core.

Furthermore, the cable core is filled with environment-friendly high-flame-retardant glass fiber ropes.

Furthermore, the conductors of the electric units are made of annealed soft copper wires, and cross-linked polyethylene insulation is arranged outside the conductors and tightly extruded on the conductors.

Furthermore, the electric unit is filled with environment-friendly high-flame-retardant glass fiber ropes.

Furthermore, a low-temperature-resistant low-smoke halogen-free sheath is arranged outside the optical fiber of the optical unit.

Further, the outer sheath is a low-smoke halogen-free polyolefin sheath.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model adopts the special design of the cable and the use of special materials, which greatly improves the versatility of the cable and the capability of adapting to severe environment;

2. the product of the utility model has the advantages of wear resistance, ultraviolet resistance (cracking resistance), tensile resistance, aging resistance, flexibility, bending resistance, oil resistance, low temperature resistance, corrosion resistance, flame retardance, lightning protection, termite resistance, biting resistance of odontolite, tensile resistance and other excellent performances, and solves a series of performance problems of cracking, easy damage, easy aging and the like of the common photoelectric composite cable under the complex environment;

3. the reserved copper pipe and the steel wire rope designed by the utility model can be additionally provided with cables according to scene requirements under the constructed environment, thereby greatly reducing the construction cost and the construction time; the problems of high operation difficulty, potential safety hazards and the like caused by secondary laying are avoided; the damage of secondary construction to the surrounding environment is reduced, the laying cost is reduced, and the space utilization is improved;

4. the utility model adopts the hollow copper pipe as the reserved pipeline, thereby enhancing the strength of the reserved pipeline; the insulating layer arranged outside the hollow copper pipe plays an insulating role, increases the necessary soft buffer degree when the reserved pipeline is contacted with other wire cores, and cannot bring potential safety hazards.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Wherein:

1. a light unit; 2. An electrical unit;

3. a central reinforcing member; 4. High-temperature-resistant wrapping tapes;

5. wrapping belts; 6. A copper pipe;

7. a wire rope; 8. A copper pipe insulating layer;

9. an outer sheath.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

In the description of the present invention, when a component is referred to as being "secured" to another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the present invention specifically includes:

a first part: an electrical unit 2; the conductor of the electric unit 2 is a 99.9999% annealed oxygen-free flexible copper wire, and the roundness and the flexibility of the flexible conductor are ensured by controlling the elongation of the annealed copper wire; the insulating material adopts cross-linked polyethylene (XLPE); the cross-linked polyethylene insulating extrusion process is controlled, the cross section of the conductor is tightly extruded and wrapped on the conductor, bubbles and impurities are not visible, the appearance is round and neat, the cross-linking is sufficient, and the conductor is easy to peel off; filling and using environment-friendly high-flame-retardant glass fiber ropes; the color of the wire core adopts red, blue, yellow and blue;

a second part: a light unit 1; the type of the optical fiber can adopt B1.3 single mode optical fiber, and the sheath adopts low temperature resistant low smoke zero halogen sheath material; the optical fiber chromatogram is determined according to the requirements of customers, and blue and orange can be adopted;

and a third part: a reservation unit; comprises a copper pipe 6, a steel wire rope 7 arranged in the copper pipe, and a copper pipe insulating layer 8 arranged outside the copper pipe;

the fourth part: a central reinforcing member 3;

the cabling process is controlled, and environment-friendly high-flame-retardant glass fiber ropes are filled, so that the insulation tension of each cable is consistent. Meanwhile, a copper pipe 6 with the thickness of 0.10mm is added during cabling, a steel wire rope 7 is synchronously added in the copper pipe 6, and an insulating layer of the copper pipe 6 is extruded cross-linked polyethylene (XLPE) insulation.

The cable core is wrapped with a high temperature resistant wrapping tape 4 as a high temperature resistant wrapping tape layer, and a wrapping tape 5 is wrapped outside the high temperature resistant wrapping tape layer as a wrapping tape layer.

The outer sheath 9 is a low-smoke halogen-free polyolefin sheath, and the extrusion process of the outer sheath 9 adopts an extrusion type mold with large extrusion force to directly extrude and wrap the cable core with the wrapping tape 5, so that the gap filling of the cable core is ensured to be tight. The surface should be smooth and round, the color should be basically consistent, and the cross section should have no visible bubbles and impurities.

The utility model discloses when needs increase the cable once more, as long as open reservation formula power cable copper pipe, will need newly-increased cable to connect the steel wire haulage rope with reliable mode, carry out reasonable drawing at the other end of copper pipe, can lay the cable that needs to lay in the set position, both raise the efficiency, the cable tie up untight when avoiding appearing the secondary again, the cable is flagging between the support, the cable is alternately, walk the condition such as line confusion, avoid causing the potential safety hazard that wearing and tearing destruction brought to the cable that has laid.

The utility model adopts the hollow copper pipe as the reserved pipeline, which enhances the strength of the reserved pipeline and avoids the damage of the pipeline when a new cable is pulled; the insulating layer that sets up outside hollow copper pipe simultaneously had both played the insulating effect to new cable, had increased the compliance that must when should reserving the pipeline and contact with other sinle silks again, did not cause the wearing and tearing destruction of sinle silks because of the collision friction of reserving the pipeline and other sinle silks, had avoided the potential safety hazard.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a novel pre-buried formula photoelectricity composite cable which characterized in that, includes optical unit, electric unit, central reinforcement member, reservation unit, and belting layer, oversheath that the cable core that optical unit, electric unit, central reinforcement member, reservation unit constitute jointly wraps in proper order outward.

2. The novel pre-buried photoelectric composite cable according to claim 1, wherein the reservation unit comprises a copper pipe, a steel wire rope arranged in the copper pipe, and a copper pipe insulating layer arranged outside the copper pipe.

3. The novel pre-buried photoelectric composite cable of claim 2, wherein the copper tube insulation layer is extruded cross-linked polyethylene XLPE insulation.

4. The novel pre-buried photoelectric composite cable according to claim 1, wherein a high temperature resistant tape layer is further disposed between the tape layer and the cable core.

5. The novel pre-buried photoelectric composite cable according to claim 1, wherein the cable core is filled with an environment-friendly high-flame-retardant glass fiber rope.

6. The novel embedded photoelectric composite cable according to claim 1, wherein the conductors of the electric units are annealed soft copper wires, and cross-linked polyethylene insulation is arranged outside the conductors and tightly extruded on the conductors.

7. The novel pre-buried photoelectric composite cable according to claim 1 or 6, wherein the electric unit is filled with an environmentally-friendly high-flame-retardant glass fiber rope.

8. The novel pre-buried photoelectric composite cable according to claim 1, wherein a low temperature resistant low smoke zero halogen sheath is disposed outside the optical fiber of the optical unit.

9. The novel embedded photoelectric composite cable of claim 1, wherein the outer sheath is a low smoke zero halogen polyolefin sheath.

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