CN211670000U - Cable convenient to assembly of buckling - Google Patents

Abstract

The utility model discloses a cable convenient to assembly of buckling relates to cable technical field, for solving prior art, and the cable sheath is too thick to lead to being difficult to buckle in the installation operation, the technical problem of internal core damage, the technical scheme of the utility model as follows: the cable comprises a cable main body, wherein the cable main body sequentially comprises an insulating layer, a protective layer, a filling layer and a cable core body from outside to inside; the cable cores are distributed in a circular array in the cable main body; a plurality of folds are distributed at intervals in the length direction of the cable main body, and the folds are arranged along the circumferential direction of the cable main body.

Description

Cable convenient to assembly of buckling

Technical Field

The utility model relates to the technical field of cables.

Background

Wire and cable are wire products for transmitting electric energy, electric signals and realizing electromagnetic energy conversion. A cable generally comprises a core for transmitting power or electrical signals and a sheath for protecting and insulating. With the development of social economy, high-rise buildings, public entertainment places, subways, underground streets and the like are continuously emerged, the communication and power consumption are increased day by day, and the demand of cables is gradually increased. Although the prior cable achieves basic operation performance, the following defects still exist: because the acid-resistant alkali resistance of traditional cable is relatively poor, long-time operation under adverse circumstances leads to it to suffer the condition of acid-base corrosion destruction easily, has shortened the life of cable, consequently carries out better protection to the cable core through the mode that increases cable sheath thickness, but because the cable sheath is too thick can lead to the whole pliability of cable relatively poor, be difficult to buckle in the installation operation, if buckle by force can lead to the sheath to tear, and then make the condition of internal wire core damage take place.

SUMMERY OF THE UTILITY MODEL

For solving prior art, the cable sheath is too thick to lead to being difficult to buckle in the installation operation, the sheath is easy to be torn, the technical problem of inside core damage, the technical scheme of the utility model as follows:

the cable convenient for bending and assembling in the utility model comprises a cable main body, wherein the cable main body comprises an insulating layer, a protective layer, a filling layer and a cable core body from outside to inside in sequence; the cable cores are distributed in a circular array in the cable main body; a plurality of folds are distributed at intervals in the length direction of the cable main body, and the folds are arranged along the circumferential direction of the cable main body.

Furthermore, the folds are arranged on the outer part of the cable main body in a semi-circle shape.

Further, the folds are arranged along the length direction of the cable main body in a staggered and opposite mode.

Further, the insulating layer is a flame-retardant irradiation insulating layer.

Further, the protective layer is a ceramic silicon rubber protective layer.

Further, the filling layer is an alkali-free glass fiber filling layer.

Further, the outer side of the protective layer is wrapped with an outer shielding layer.

Further, the outer shielding layer is a copper wire or a tinned copper wire or a copper-clad aluminum-magnesium braided belt.

Further, the cable core is a single copper wire or a stranded conductor.

The utility model provides a cable convenient to assembly of buckling, compared with the prior art, its beneficial effect is:

the utility model provides a cable convenient to assemble of buckling, fold structure have fine toughness, are convenient for extend or extrude, consequently, when the cable main part is buckled, the fold of incurvature point can extrude each other and laminate together, and the fold of incurvature point can spread, and then makes the effort of cable department of buckling disperse, avoids the department of buckling of cable the condition of tearing to appear. Under the design of this structure, even the cable body under the protection of a plurality of thickness layers such as insulating layer, protective layer, filling layer, the realization that also can relax is buckled, adaptable different construction, installation requirement.

Drawings

FIG. 1 is a schematic view of a cable for facilitating bend assembly of the present invention;

FIG. 2 is a schematic view of another embodiment of a cable to facilitate a bend assembly;

FIG. 3 is a schematic view of a cable for facilitating a bend fit in yet another embodiment;

fig. 4 is a sectional view of the cable convenient for bending assembly in the present invention.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and 4, the cable convenient for bending and assembling in the present invention includes a cable main body 7, and the cable main body 7 sequentially includes an insulating layer 1, a protective layer 2, a filling layer 3 and a cable core 4 from outside to inside; the cable cores 4 are distributed in a circular array in the cable main body 7; the cable comprises a cable body 7, wherein a plurality of folds 5 are distributed at intervals in the length direction of the cable body 7, the folds 5 are arranged along the circumferential direction of the cable body 7, the insulating layer 1, the protective layer 2 and the filling layer 3 are all formed by burning and wrapping the folds 5 in a corrugated shape except for a cable core 4 inside the cable body 7 at the folds 5, the thickness of the cable body 7 at the folds 5 is changed by adjusting the thickness of the filling layer 3, and the thicknesses of other layer structures are kept unchanged. The structure of the folds 5 has good toughness, and is convenient for extension or extrusion, so when the cable main body 7 is bent, the folds 5 at the inner bending points can be mutually extruded and attached together, and the outer bending points are spread and unfolded. Under the design of this structure, even the cable body has under the multilayer thickness protection such as insulating layer 1, protective layer 2, filling layer 3, also can be light the realization buckle, adaptable different construction requirements.

In general, when the bending angle is not particularly large, the folds 5 at the inner bending points are pressed and attached together, and the outer bending points do not need to be extended, the folds 5 do not need to be opened in a full circle, but only in a half circle. Thus, as shown in fig. 2, in one embodiment the corrugations 5 are open in a half-circumference outside the cable body 7. Meanwhile, in order to adapt to the diversity of the bending directions, the opening directions of the pleats 5 can be arranged in a staggered manner, as shown in fig. 3, and in another embodiment, the pleats 5 are alternately and reversely opened along the length direction of the cable main body 7.

The preferable material of cable body is: the insulating layer 1 is a flame-retardant irradiation insulating layer 1, the flame-retardant irradiation insulating layer 1 has the characteristics of good processing performance, excellent physical and mechanical properties, high temperature resistance grade, good flame-retardant performance, low halogen content and the like, meets the requirement of environmental protection, and the surface of the prepared cable is smooth and round after irradiation crosslinking and is particularly suitable for the requirement of high temperature resistance grade; the protective layer 2 is a ceramic silicon rubber protective layer 2, and the ceramic silicon rubber protective layer 2 has good elasticity and buffering performance, so that the cable core is further protected, and the cable core is prevented from being damaged when vibration such as earthquake and the like is strong, and communication and power supply are influenced; the filling layer 3 is the alkali-free glass fiber filling layer 3, the main component of the alkali-free glass fiber filling layer 3 is silicon dioxide, the alkali-free glass fiber filling layer 3 is a very stable inorganic material, the alkali-free glass fiber filling layer is non-toxic and harmless, the heat-resistant temperature can reach more than 650 plus one 1000 ℃, and harmful smoke can not be generated after the heat is heated.

The outer side of the protective layer 2 is coated with an outer shielding layer 6, the outer shielding layer 6 is a copper wire or a tinned copper wire or a copper-clad aluminum-magnesium braided belt, the anti-interference capability of the cable to the outside is enhanced, and the mechanical performance of the cable is also increased, the copper-plastic composite belt is wrapped with shielding, namely the shielding performance of the copper belt, contains the mechanical stress of a plastic belt, and the shielding layer 6 is more stable and reliable; the tinned copper wire is woven to enable the shielding layer 6 of the cable to have the characteristics of corrosion resistance and oxidation resistance, the service life of the shielding layer 6 of the cable is prolonged, and the shielding layer 6 can play a shielding role for a long time.

The cable core 4 is a single copper wire or a stranded conductor.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. The cable convenient to bend and assemble is characterized by comprising a cable main body, wherein the cable main body sequentially comprises an insulating layer, a protective layer, a filling layer and a cable core body from outside to inside; the cable cores are distributed in a circular array in the cable main body; a plurality of folds are distributed at intervals in the length direction of the cable main body, and the folds are arranged along the circumferential direction of the cable main body.

2. The cable of claim 1, wherein the corrugations are cut in a half-circumference of the exterior of the cable body.

3. The bend-fittable cable of claim 2, wherein the corrugations are staggered and reversed along the length of the cable body.

4. A cable for facilitating bend assembly according to any one of claims 1 to 3, wherein the insulating layer is a flame retardant irradiated insulating layer.

5. The bend-assembled cable of claim 4, wherein the protective layer is a ceramic silicone rubber protective layer.

6. The bend-assembled cable of claim 5, wherein the filler layer is an alkali-free glass fiber filler layer.

7. The bend-assembled cable of claim 6, wherein the outer side of the protective layer is coated with an outer shield.

8. The bend-assembly-facilitating cable of claim 7, wherein the outer shielding layer is a copper wire or a tinned copper wire or a copper-clad aluminum magnesium braid.

9. The bend-assembled cable of claim 8, wherein the cable core is a single copper wire or a stranded conductor.

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