Bending-resistant high-performance cable

Abstract

An anti-bending high-performance cable disclosed by the present invention comprises a protective sheath layer and cable cores installed on the inner side of the protective sheath layer, a reinforcing cable is installed on the inner side of the protective sheath layer, the cable cores are uniformly distributed around the reinforcing cable, and uniformly distributed anti-pulling strips are fixedly installed on the outer side of the reinforcing cable. The number of the anti-pulling strips is the same as that of the cable cores, the anti-pulling strips and the cable cores are annularly arranged at intervals, the inner side of the protective sheath layer is filled with an insulating layer, and the cable cores, the reinforcing cable and the anti-pulling strips are wrapped on the inner side of the insulating layer. According to the invention, through the arrangement of the reinforcing cable, the anti-pulling strip and the connecting strip, the anti-bending capability of the cable is structurally improved, and in the actual use of the cable, the cable is prevented from being bent to a great extent, and the cable core is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and more specifically, to a high-performance cable with anti-bending property. Background Art

[0002] A cable is a collection of insulated wires used to transmit electrical energy, signals, or data, and is widely used in many fields such as electric power, communication, and industrial control in modern society.

[0003] During the bending process of a cable, both the insulating layer and the conductor will be subjected to certain stress. If the cable has insufficient anti-bending ability, after multiple bends, cracks, peeling, etc. may occur in the insulating layer, and the conductor may also undergo fatigue fracture. These internal damages will cause the insulation performance of the cable to decline, the resistance to increase, thereby affecting the transmission efficiency and safety of the cable, and shortening the service life of the cable. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a high-performance cable with anti-bending property to solve the above problems in the background art.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A high-performance cable with anti-bending property, including a protective cortex and a cable core installed inside the protective cortex. A reinforcing cable is installed inside the protective cortex. The cable cores are evenly distributed around the reinforcing cable. Uniformly distributed anti-pulling bars are fixedly installed on the outer side of the reinforcing cable. The number of the anti-pulling bars is the same as that of the cable cores. The anti-pulling bars and the cable cores are arranged at annular intervals. The inside of the protective cortex is filled with an insulating layer. The cable cores, the reinforcing cable, and the anti-pulling bars are all wrapped inside the insulating layer; Equidistantly arranged connecting bars are fixedly installed between the reinforcing cable and the anti-pulling bars. The connecting bars are inclined. The inclination directions of two adjacent connecting bars are opposite.

[0006] As a further description of the above technical solution: The inclination angle of the connecting bars is 45 to 60 degrees.

[0007] As a further description of the above technical solution: The cross-sectional shape of the anti-pulling bar is L-shaped, and the folded angle of the anti-pulling bar faces the reinforcing cable. As a further description of the above technical solution: The protective cortex is a polyethylene layer.

[0008] As a further description of the above technical solution: The insulating layer is a silicone rubber layer.

[0009] Compared with the prior art, the advantages of the present invention are: In this solution, through the arrangement of the strengthening cable, the anti-pulling strip and the connecting strip, the anti-bending ability of the cable is improved structurally. During the actual use of the cable, the cable bending is greatly avoided, playing a role in protecting the cable core. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic cross-sectional structure diagram of the present invention; Figure 2 is a schematic structure diagram of the present invention.

[0011] Description of the reference numerals in the drawings: 1, protective cortex; 2, cable core; 3, strengthening cable; 4, anti-pulling strip; 5, insulating layer; 6, connecting strip. DETAILED DESCRIPTION OF THE INVENTION

[0012] The following combines the drawings and embodiments to further describe the specific implementation manners of the present invention. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and cannot be used to limit the protection scope of the present invention.

[0013] The technical solution specifically implemented by the present invention is as follows: Please refer to Figure 1 and Figure 2 , in the present invention, a high-performance anti-bending cable includes a protective cortex 1 and a cable core 2 installed inside the protective cortex 1. A strengthening cable 3 is installed inside the protective cortex 1, and the cable cores 2 are evenly distributed around the strengthening cable 3. Uniformly distributed anti-pulling strips 4 are fixedly installed on the outer side of the strengthening cable 3. The number of the anti-pulling strips 4 is the same as that of the cable cores 2, and the anti-pulling strips 4 and the cable cores 2 are arranged at annular intervals. The inside of the protective cortex 1 is filled with an insulating layer 5, and the cable cores 2, the strengthening cable 3 and the anti-pulling strips 4 are all wrapped inside the insulating layer 5.

[0014] Connecting strips 6 are fixedly installed between the strengthening cable 3 and the anti-pulling strips 4 at equal distances. The connecting strips 6 are arranged obliquely, and the inclination directions of two adjacent connecting strips 6 are opposite.

[0015] In the present invention, the strengthening cable 3 is located at the center of the cable, which can enhance the overall tensile strength of the cable. The surrounding anti-pulling strips 4 are connected by the connecting strips 6 around the strengthening cable 3. When the cable is bent, the anti-pulling strips 4 on the outer side of the bend are partially subjected to bending tensile force, and the anti-pulling strips 4 on the inner side are subjected to bending pressure. However, the anti-pulling strips 4 on the outer side are restricted by the connecting strips 6, and transfer part of the tensile force to the strengthening cable 3 and the strengthening cable 3 on the inner side, thereby restricting the bending deformation of the cable, improving the anti-bending ability of the cable, and avoiding the fracture of the cable core 2 in the cable caused by excessive bending of the cable. Among them, through the insulating layer 5, the stress of the bent cable core 2 is dispersed, and at the same time, the cable core 2 is isolated and insulated. The inclined connecting strips 6 cooperate with each other to form a stable triangular structure, improving the bending restriction effect on the anti-pulling strips 4.

[0016] Wherein: the inclination angle of the connecting bar 6 is 45 to 60 degrees. In the present invention, according to the anti-bending requirement, the inclination angle of the connecting bar 6 is adaptively adjusted during the production of the cable, so as to adjust the anti-bending ability of the cable.

[0017] Wherein: the cross-sectional shape of the anti-tensile bar 4 is L-shaped, and the fold angle of the anti-tensile bar 4 faces the strengthening cable 3; In the present invention, through the L-shaped anti-tensile bar 4, the stress distribution is different in different directions, and the bending stress concentration phenomenon is more obvious in the fold angle direction, thereby increasing the difficulty of bending and improving the anti-bending ability of the cable.

[0018] Wherein: the protective cortex 1 is a polyethylene layer. Polyethylene has excellent insulation performance, low dielectric constant, small dielectric loss, can reduce the loss of electric energy during transmission, good water resistance, and can be used in a humid environment for a long time without affecting performance; it has good cold resistance and can still maintain good flexibility in a low-temperature environment.

[0019] Wherein: the insulating layer 5 is a silicone rubber layer. The main chain of the silicone rubber is composed of silicon-oxygen bonds (-Si-O-Si-). This special molecular structure endows it with excellent flexibility and anti-bending performance. The bond angle of the silicon-oxygen bond is relatively large and the bond energy is relatively high, so that the silicone rubber molecular chain can be deformed relatively easily when bent by an external force, and can quickly return to its original state after the external force is removed, and is not easy to produce permanent deformation. At the same time, it can wrap the cable core 2 to play a protective role.

[0020] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A high-performance bending-resistant cable, characterized in that: It comprises a protective skin layer (1) and a cable core (2) installed on the inner side of the protective skin layer (1), a reinforcing cable (3) is installed on the inner side of the protective skin layer (1), the cable core (2) is evenly distributed around the reinforcing cable (3), and evenly distributed anti-pull strips (4) are fixedly installed on the outer side of the reinforcing cable (3), the number of the anti-pull strips (4) is the same as the number of the cable core (2), and the anti-pull strips (4) and the cable core (2) are arranged in a ring-shaped interval, the inner side of the protective skin layer (1) is filled with an insulating layer (5), and the cable core (2), the reinforcing cable (3) and the anti-pull strips (4) are all wrapped on the inner side of the insulating layer (5); Connecting strips (6) arranged at equal distances are fixedly installed between the reinforcing cable (3) and the anti-tension strip (4); the connecting strips (6) are arranged in an inclined manner, and the inclination directions of two adjacent connecting strips (6) are opposite.

2. The bending-resistant high-performance cable according to claim 1, characterized in that: The inclination angle of the connecting strip (6) is between forty-five and sixty degrees.

3. The bending-resistant high-performance cable according to claim 1, characterized in that: The cross-sectional shape of the anti-tension strip (4) is L-shaped, and the folded corner of the anti-tension strip (4) faces the reinforcing cable (3).

4. The bending-resistant high-performance cable according to claim 1, characterized in that: The protective skin layer (1) is a polyethylene layer.

5. The bending-resistant high-performance cable according to claim 1, characterized in that: The insulating layer (5) is a silicone rubber layer.

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