Flat tensile cable

Abstract

The utility model discloses a kind of flat tensile cables, it is related to cable technical field;The utility model includes: a plurality of cable cores, side by side distribution, a plurality of cable core is provided with cladding, a plurality of tensile rods are provided in the cladding, a plurality of tensile rods are distributed in two rows, a plurality of tensile rods of same column are respectively staggered with a plurality of cable cores, protective layer is provided on the cladding, steel belt armoring layer is provided between the cladding and protective layer;The utility model is fixed to a plurality of cable cores by cladding, a plurality of tensile rods are provided in the cladding, a plurality of tensile rods are set in two rows and staggered with cable core, to improve the tensile property of cable, steel belt armoring layer and protective layer are provided on the cladding, not only further improve the tensile property of cable, but also can improve its compression resistance, improve its overall strength, to improve the service life of cable.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a flat tensile cable. Background Technology

[0002] Cables are used to transmit and distribute electrical energy. Power cables are commonly used in urban underground power grids, power plant lead-out lines, internal power supply in industrial and mining enterprises, and underwater transmission lines across rivers and seas. With the development of the power and energy industry, various cables are increasingly used in all areas of production and life. Flat cables are particularly suitable for occasions with frequent bending, do not twist, and fold neatly. Traditional flat cables generally have a flat cross-section and a relatively simple structure. They usually use a single sheathing layer to cover the cable core, which has poor tensile strength. They are prone to breakage when dragged, twisted, or subjected to tension, affecting their service life. Therefore, this utility model proposes a flat tensile-resistant cable. Utility Model Content

[0003] The purpose of this utility model is to provide a flat tensile cable in order to solve the problems in the background art.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution: A flat tensile cable, comprising: A plurality of cable cores are arranged side by side, and a sheathing layer is provided on each of the cable cores. A plurality of tensile bars are provided inside the sheathing layer. The tensile bars are arranged in two columns, one above the other. The tensile bars in the same column are staggered with the cable cores. A protective layer is provided on the sheathing layer, and a steel tape armor layer is provided between the sheathing layer and the protective layer.

[0005] Furthermore, the inner wall of the protective layer is provided with a spiral groove, and the steel strip armor layer is embedded in the spiral groove.

[0006] Furthermore, the cladding layer contains several steel bars, which are wavy and interspersed with several cable cores.

[0007] Furthermore, the outer surface of the tensile rod is arrayed with several limiting plates along its length, and the limiting plates are all embedded in the covering layer.

[0008] Furthermore, the covering layer includes an inner covering layer, a shielding layer, and an outer covering layer distributed sequentially from the inside out, with the cable core disposed within the inner covering layer.

[0009] Furthermore, the protective layer includes a corrosion-resistant layer disposed on the steel strip armor layer, and a wear-resistant layer is disposed on the corrosion-resistant layer.

[0010] Furthermore, the outer surface of the wear-resistant layer is arrayed with several raised strips.

[0011] Furthermore, a steel wire is fixed inside the protrusion.

[0012] The beneficial effects of this utility model are as follows: In this utility model, several cable cores are fixed side by side by a sheathing layer, and several tensile bars are set inside the sheathing layer. The tensile bars are arranged in two columns, one above the other and staggered with the cable cores, thereby improving the tensile performance of the cable. A steel tape armor layer and a protective layer are set on the sheathing layer, which not only further improves the tensile performance of the cable, but also improves its compressive strength and overall strength, thereby improving the service life of the cable. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural cross-sectional view of the present invention; Figure 3 This is another three-dimensional structural sectional view of this utility model; Figure 4 This is a utility model Figure 2 Enlarged view of point A in the middle; Figure 5 This is a utility model Figure 3 Enlarged view of section B in the middle.

[0014] Reference numerals in the attached diagram: 1. Cable core; 2. Sheathing layer; 3. Tensile bar; 4. Protective layer; 5. Steel strip armor layer; 6. Spiral groove; 7. Steel bar; 8. Limiting plate; 9. Raised bar; 10. Steel wire; 201. Inner sheath; 202. Shielding layer; 203. Outer sheath; 401. Corrosion-resistant layer; 402. Wear-resistant layer. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0016] like Figures 1-5 As shown, one embodiment of this utility model discloses a flat tensile cable, comprising: Several cable cores 1 are arranged side by side, and a sheathing layer 2 is provided on each cable core 1. The sheathing layer 2 is used to fix the several side-by-side cable cores 1. Several tensile rods 3 are arranged in two columns, one above the other. Several tensile rods 3 in the same column are staggered with several cable cores 1. Preferably, the tensile rods 3 are made of aramid fiber braided rods. Aramid fiber (especially para-aramid) is one of the synthetic fibers with the best comprehensive tensile performance. Its properties far exceed those of traditional metal materials. Its breaking strength is 5 times that of steel wire, but its weight is only 1 / 5. With good tensile strength, the anti-tensile rod 3 is set, which can enhance the tensile strength of the cable without affecting the normal bending of the cable. A protective layer 4 is set on the sheathing layer 2, and a steel tape armor layer 5 is set between the sheathing layer 2 and the protective layer 4. Preferably, the steel tape armor layer 5 is made of steel tape spirally wound on the sheathing layer 2. It can not only protect the sheathing layer 2, but also further enhance the tensile strength of the cable and improve the cable's anti-flattening performance. The protective layer 4 is set on the outer surface of the steel tape armor layer 5, which can protect the cable as a whole, thereby improving the service life of the cable. In this scheme, the sheathing layer 2 is fixed to several cable cores 1 side by side. Several tensile rods 3 are set inside the sheathing layer 2. The tensile rods 3 are arranged in two columns, one above the other and staggered with the cable cores 1, thereby improving the tensile performance of the cable. A steel tape armor layer 5 and a protective layer 4 are set on the sheathing layer 2, which not only further improves the tensile performance of the cable, but also improves its compressive strength and overall strength, thereby improving the service life of the cable.

[0017] like Figure 5 As shown, a further technical solution for the steel strip armor layer 5 of this utility model is disclosed. The inner wall of the protective layer 4 is provided with a spiral groove 6, and the steel strip armor layer 5 is embedded in the spiral groove 6. Since the steel strip armor layer 5 is formed by spirally winding steel strip, by opening the spiral groove 6 on the inner wall of the protective layer 4 and embedding the steel strip armor layer 5 in the spiral groove 6, the steel strip is limited, which further improves the overall tensile strength of the cable. At the same time, the cable needs to be cut according to the usage conditions (the cable usually has a long length and needs to be cut to the required length during use). By limiting the steel strip through the spiral groove 6, the steel strip at the end of the cable is not easy to loosen after the cable is cut, thereby improving practicality.

[0018] like Figure 5 As shown, this utility model discloses a further technical solution for improving the tensile strength of cables. A plurality of steel bars 7 are arranged within the sheathing layer 2. These steel bars 7 are wavy in structure and are staggered with several cable cores 1. By incorporating steel bars 7 within the sheathing layer 2, the tensile strength of the cable is further improved. The steel bars 7 have a wavy structure, as shown... Figure 3 and Figure 5As shown, when the cable is laid flat, the upper and lower convex ends formed by its waves can further improve the cable's compressive strength.

[0019] like Figure 5 As shown, the present invention discloses a further technical solution for the tensile strength of cables. The outer surface of the tensile rod 3 is arrayed with several limiting plates 8 along its length direction. The limiting plates 8 are all embedded in the covering layer 2. By setting several limiting plates 8 on the tensile rod 3 and embedding the limiting plates 8 in the covering layer 2, the connection strength between the tensile rod 3 and the covering layer 2 is improved, thereby further improving the tensile strength of the cable.

[0020] like Figure 4 As shown, the specific structure of the sheathing layer 2 of this utility model is disclosed. The sheathing layer 2 includes an inner sheathing layer 201, a shielding layer 202, and an outer sheathing layer 203 distributed sequentially from the inside to the outside. The cable core 1 is disposed inside the inner sheathing layer 201. Preferably, both the inner sheathing layer 201 and the outer sheathing layer 203 are made of ethylene propylene rubber, which has good insulation performance and good aging resistance. The shielding layer 202 is made of copper and is used to prevent the intrusion of external electromagnetic interference, thereby improving the practicality of the cable.

[0021] like Figure 4 and Figure 5 As shown, the specific structure of the protective layer 4 of this utility model is disclosed. The protective layer 4 includes a corrosion-resistant layer 401 disposed on the steel strip armor layer 5, and a wear-resistant layer 402 disposed on the corrosion-resistant layer 401. Preferably, the corrosion-resistant layer 401 is made of fluororubber, which has excellent chemical stability and can withstand the corrosion of strong acids, strong alkalis and various organic chemicals. The wear-resistant layer 402 is made of styrene-butadiene rubber, which is a synthetic rubber copolymerized from butadiene and styrene, and has wear resistance and heat resistance. The protective layer 4 is composed of the corrosion-resistant layer 401 and the wear-resistant layer 402, which can improve the corrosion resistance and wear resistance of the cable, thereby improving the service life of the cable.

[0022] like Figure 4 As shown, a further technical solution for the wear-resistant layer 402 of this utility model is disclosed. The outer surface of the wear-resistant layer 402 is provided with a plurality of raised strips 9. Preferably, the material of the raised strips 9 is the same as that of the wear-resistant layer 402, which has good wear resistance. By setting the raised strips 9, when the cable rubs against the ground or other objects, the raised strips 9 come into contact with the ground or other objects, and most of the surface of the cable does not come into contact, reducing the contact area of ​​the cable, reducing wear, and thus further improving the service life of the cable.

[0023] like Figure 4 As shown, the present invention discloses a further technical solution for the protruding strip 9. A steel wire 10 is fixed inside the protruding strip 9. By setting the steel wire 10 inside the protruding strip 9, the tensile strength of the cable is further improved, thereby improving the strength and service life of the cable.

[0024] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flat tensile cable, characterized in that include: A number of cable cores (1) are arranged side by side. A sheathing layer (2) is provided on the cable cores (1). A number of tensile rods (3) are provided in the sheathing layer (2). The tensile rods (3) are arranged in two columns, one above the other. The tensile rods (3) in the same column are staggered with the cable cores (1). A protective layer (4) is provided on the sheathing layer (2). A steel strip armor layer (5) is provided between the sheathing layer (2) and the protective layer (4).

2. The flat type tensile cable according to claim 1, characterized in that, The inner wall of the protective layer (4) is provided with a spiral groove (6), and the steel strip armor layer (5) is embedded in the spiral groove (6).

3. The flat type tensile cable according to claim 1, characterized in that, The covering layer (2) contains several steel bars (7), which are wavy and are interspersed with several cable cores (1).

4. The flat type tensile cable according to claim 1, characterized by The outer surface of the tensile rod (3) is arrayed with several limiting plates (8) along its length direction, and the several limiting plates (8) are all embedded in the covering layer (2).

5. The flat type tensile cable according to claim 1, wherein The covering layer (2) includes an inner covering layer (201), a shielding layer (202) and an outer covering layer (203) distributed from the inside out, and the cable core (1) is disposed in the inner covering layer (201).

6. The flat tensile cable according to claim 1, characterized in that, The protective layer (4) includes a corrosion-resistant layer (401) disposed on the steel belt armor layer (5), and a wear-resistant layer (402) is disposed on the corrosion-resistant layer (401).

7. The flat tensile cable according to claim 6, characterized in that, The outer surface of the wear-resistant layer (402) is provided with a plurality of raised strips (9).

8. The flat tensile cable according to claim 7, characterized in that, A steel wire (10) is fixed inside the protrusion (9).

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