CN216562531U

CN216562531U - Anti-fracture cable

Info

Publication number: CN216562531U
Application number: CN202122534249.9U
Authority: CN
Inventors: 刘明
Original assignee: Chongqing Chuchu Technology Co ltd
Current assignee: Chongqing Chuchu Technology Co ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-05-17
Anticipated expiration: 2031-10-20

Abstract

The utility model discloses a fracture-resistant cable which comprises a plurality of cable cores, wherein the plurality of cable cores are uniformly embedded in a filling layer at intervals, an insulating layer, a shielding layer, a moisture-proof layer, a deformation layer and an outer protection layer are sequentially sleeved outside the filling layer, the deformation layer comprises a plurality of elastic support bars, the plurality of elastic support bars can be elastically elongated, the plurality of elastic support bars are uniformly arranged around the outer wall of the moisture-proof layer at intervals in the circumferential direction, and the outer walls of the elastic support bars are respectively abutted against the inner wall of the outer protection layer and the outer wall of the moisture-proof layer. This anti cracked cable can improve the anti fracture ability of cable, and then prolongs the life of cable.

Description

Anti-fracture cable

Technical Field

The utility model relates to the technical field of cables, in particular to a fracture-resistant cable.

Background

A cable is a power or signal transmission device, and is generally composed of several wires or groups of wires. With the rapid growth of national economy, especially the acceleration of rural and urban power grid construction and transformation pace and the vigorous development of the land industry in various regions, the electric power industry in China is rapidly developed, thereby promoting the development of the electric industry matched with the electric power industry, especially the development of the electric wire and cable industry, and showing the diversified trend of the variety development of the electric wire and cable. The electric wire and cable has been developed from pure power transmission to multi-functionalization, i.e. new characteristics are added according to different purposes. For example: flame retardant cables, fire resistant cables, low halogen low smoke cables, halogen free low smoke cables and the like.

The existing cable is weak in fracture resistance, and is easy to fracture particularly under the condition of being bent for multiple times, so that an electric fracture-resistant cable is designed.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a fracture-resistant cable, which can improve the fracture resistance of the cable and further prolong the service life of the cable.

In order to realize the purpose, the utility model is realized by the following technical scheme: the utility model provides an anti cracked cable, includes a plurality of cable cores, a plurality of cable core intervals are even inlays and establishes in the filling layer the inside, insulating layer, shielding layer, dampproof course, deformation layer and outer protective layer are established to cover in order outside the filling layer, the deformation layer includes a plurality of elastic support strip, and is a plurality of elastic support strip ability elasticity is elongated, and is a plurality of elastic support strip round the outer wall circumference interval of dampproof course evenly sets up, just elastic support strip's outer wall respectively with the inner wall of outer protective layer with the outer wall of dampproof course offsets.

Further, the deformation layer still includes the elastic support ring, the elastic support ring is the ring body, the elastic support ring cover is established the outer wall of dampproof course, the elastic support bar has mutual spaced bellying and depressed part along its length direction, the bellying with form a plurality of first chambeies of holding between the outer wall of dampproof course, every the first intracavity that holds is provided with one the elastic support ring.

Furthermore, a plurality of second accommodating cavities are formed between the concave part and the inner wall of the outer protection layer, and each elastic support ring is arranged in each first accommodating cavity.

Further, still include the transition layer, the transition layer sets up between shielding layer and the dampproof course, the circumference interval inlays in the transition layer and is equipped with a plurality of nylon ropes along axial extension.

Further, the outer walls of the convex part and the concave part are respectively connected with the inner wall of the outer protection layer and the outer wall of the moisture-proof layer.

The utility model has the beneficial effects that:

above-mentioned anti cracked cable, including a plurality of cable cores, a plurality of cable core intervals are even inlays and establishes in the filling layer the inside, insulating layer, shielding layer, dampproof course, deformation layer and outer protective layer are established to the outer wall in order of filling layer, the deformation layer includes the elastic support strip, the elastic support strip can elasticity stretch, the elastic support strip has a plurality ofly, a plurality of elastic support strips are evenly set up round the axial interval of cable, the elastic support strip, and the outer wall of elastic support strip offsets with the inner wall of outer protective layer respectively and offsets with the outer wall of dampproof course. In the use, when the cable was dragged and is buckled, the elastic support strip can be elongated and flatten to can cushion external pulling force or pressure, and then reduce whole cable fracture's risk.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

Fig. 1 is a radial cross-sectional view of a fracture-resistant cable according to an embodiment of the present invention;

FIG. 2 is an axial cross-sectional view of a fracture-resistant cable of FIG. 1;

reference numerals:

100. a cable core; 200. a filling layer; 300. an insulating layer; 400. a shielding layer; 500. a moisture barrier; 600. A deformation layer; 610. an elastic support bar; 620. an elastic support ring; 700. an outer protective layer; 800. a transition layer; 810. a nylon rope.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1 to 2, the present invention provides a fracture-resistant cable, which includes a plurality of cable cores 100, wherein the plurality of cable cores 100 are uniformly embedded in a filling layer 200 at intervals, and an insulating layer 300, a shielding layer 400, a moisture-proof layer 500, a deformation layer 600 and an outer protection layer 700 are sequentially sleeved outside the filling layer 200. The deformation layer 600 includes a plurality of elastic support strips 610, and a plurality of elastic support strips 610 can elasticity be elongated, and a plurality of elastic support strips 610 evenly set up round the outer wall circumference interval of dampproof course 500, and the outer wall of elastic support strip 610 offsets with the inner wall of outer protective layer 700 and the outer wall of dampproof course 500 respectively.

In use, when the cable is pulled and bent, the elastic support strip 610 is forced to be stretched and flattened, so that external pulling force or pressure can be buffered, and the risk of breaking the whole cable is reduced.

As a preferred embodiment, the deformation layer 600 further includes an elastic support ring 620, the elastic support ring 620 is an annular body, the elastic support ring 620 is sleeved on the outer wall of the moisture-proof layer 500, the elastic support strip 610 has a protrusion and a recess spaced from each other along the length direction thereof, a plurality of first receiving cavities are formed between the protrusion and the outer wall of the moisture-proof layer 500, and one elastic support ring 620 is disposed in each first receiving cavity. The elastic support ring 620 supports the elastic support strip 610, when the cable is subjected to external force, the elastic support strip 610 is stretched and flattened, the elastic support ring 620 is also flattened, after the external force is eliminated, the elastic support ring 620 resets under the elastic effect, and the elastic support strip 610 can be assisted to reset, so that the restoring capacity of the whole cable is improved.

In addition, a plurality of second receiving cavities are formed between the recessed portions and the inner wall of the outer protective layer 700, and each first receiving cavity is provided with an elastic support ring 620. Likewise, the resilient support ring 620 in the second receiving cavity further serves to improve the restorability of the entire cable.

The outer walls of the protruding portions and the recessed portions, which are preferred embodiments, are connected to the inner wall of the outer protection layer 700 and the outer wall of the moisture barrier 500, respectively, so as to limit the elastic support bars 610, and prevent the elastic support bars 610 from being stacked between the moisture barrier 500 and the outer protection layer 700, thereby affecting the quality of the whole cable.

In this embodiment, the fracture-resistant cable further includes a transition layer 800, the transition layer 800 is disposed between the shielding layer 400 and the moisture-proof layer 500, and a plurality of axially extending nylon cords 810 are embedded in the transition layer 800 at intervals in the circumferential direction. The nylon cord 810 in the transition layer 800 serves to withstand a tensile force when the entire cable is subjected to the tensile force, thereby preventing the entire cable from being pulled apart.

Above-mentioned anti cracked cable is through setting up the deformation layer 600 between dampproof course 500 and outer protective layer 700 to deformation layer 600 includes a plurality of elastic support strips 610, and a plurality of elastic support strips 610 can elasticity be elongated, and in the use, when the cable was dragged and is buckled, elastic support strip 610 can be elongated and flatten, thereby can cushion external pulling force or pressure, and then reduces whole cracked risk of cable.

The elastic support ring 620 supports the elastic support bar 610, when the cable is subjected to an external force, the elastic support bar 610 is stretched and flattened, the elastic support ring 620 is also flattened, and after the external force is eliminated, the elastic support ring 620 can reset and can assist the elastic support bar 610 to reset, so that the restoring capability of the whole cable is improved. In addition, the nylon cord 810 in the transition layer 800 serves to withstand a tensile force when the entire cable is subjected to the tensile force, thereby preventing the entire cable from being pulled apart.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. The utility model provides an anti cracked cable, its characterized in that, includes a plurality of cable cores, a plurality of cable core intervals are even inlays and establishes in the filling layer the inside, insulating layer, shielding layer, dampproof course, deformation layer and outer protective layer are established to the cover in order outside the filling layer, the deformation layer includes a plurality of elastic support strip, and is a plurality of elastic support strip ability elasticity is elongated, and is a plurality of elastic support strip round the outer wall circumference interval of dampproof course evenly sets up, just elastic support strip's outer wall respectively with outer protective layer's inner wall with the outer wall of dampproof course offsets.

2. The fracture-resistant cable according to claim 1, wherein the deformation layer further comprises an elastic support ring, the elastic support ring is an annular body, the elastic support ring is sleeved on the outer wall of the moisture-proof layer, the elastic support bar has a protruding portion and a recessed portion which are spaced from each other along the length direction of the elastic support bar, a plurality of first accommodating cavities are formed between the protruding portion and the outer wall of the moisture-proof layer, and one elastic support ring is arranged in each first accommodating cavity.

3. The fracture-resistant cable of claim 2, wherein a plurality of second receiving cavities are formed between the recessed portion and the inner wall of the outer protective layer, and one elastic support ring is disposed in each first receiving cavity.

4. The fracture-resistant cable of claim 1, further comprising a transition layer disposed between the shield layer and the moisture barrier layer, the transition layer having a plurality of axially-extending nylon cords embedded therein at circumferentially spaced intervals.

5. The fracture-resistant cable of claim 3, wherein the outer walls of the projections and recesses are connected to the inner wall of the outer protective layer and the outer wall of the moisture barrier, respectively.