Bending-resistant composite cable structure

Abstract

The utility model belongs to the technical field of cables, and discloses a bending-resistant composite cable structure which comprises an outer sheath layer, a reinforcing net layer arranged on the inner wall of the outer sheath layer, an insulation shielding tape arranged on the inner wall of the reinforcing net layer, a supporting layer arranged on the inner wall of the insulation shielding tape, and an inner sheath layer arranged on the inner wall of the supporting layer. A bending-resistant piece is arranged on the inner wall of the inner sheath layer, an elastic filling layer is arranged between the bending-resistant piece and the inner sheath layer, a ZRBV soft plastic wrapping ring is arranged in the elastic filling layer, and a wire core is arranged in the ZRBV soft plastic wrapping ring. The supporting layer formed by the epoxy resin layer ensures that the cable has certain elasticity, meanwhile, through the silicone rubber strips and the high-polymer nylon fiber stranded wires which are annularly distributed in the cable, the bending resistance and the tension resistance of the cable are enhanced, an extrusion buffering effect can be achieved when the wire cores are bent, damage to the wire cores during extrusion is avoided, and the service life of the cable is prolonged. And meanwhile, the service life of the composite cable can be further prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field especially relates to a kind of bending-resistant composite cable structure. BACKGROUND

[0002] Cable is a kind of electric energy or signal transmission device, usually by several or several groups of wire, cable has power cable, control cable, compensation cable, shielded cable, high temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, ship cable, mine cable and aluminum alloy cable.

[0003] In the Chinese utility model patent with the publication number CN202220615524.1, a kind of fireproof low-voltage power control composite cable is disclosed, including composite cable outer sheath, N control cables and M power cables, the composite cable outer sheath includes composite cable tape layer, composite cable tape layer is wrapped with composite cable metal sheath layer, composite cable metal sheath layer is wrapped with composite cable metal isolation sleeve layer, composite cable metal isolation sleeve layer is wrapped with composite cable fire clay layer, composite cable fire clay layer is wrapped with composite cable outer sheath layer.

[0004] For the related technology in the above, the inventor believes that there are the following defects: composite cable needs to be bent and dragged during laying, however, the degree of extrusion of the core cannot be buffered when bending, which can easily damage the core and reduce the service life of the composite cable. UTILITY MODEL CONTENT

[0005] In order to solve the above problems, the utility model provides a kind of bending-resistant composite cable structure.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a kind of bending-resistant composite cable structure, including outer sheath layer, the inner wall of the outer sheath layer is provided with reinforcing net layer, the inner wall of the reinforcing net layer is provided with insulating shield tape, the inner wall of the insulating shield tape is provided with support layer, the inner wall of the support layer is provided with inner sheath layer, the inner wall of the inner sheath layer is provided with bending-resistant piece, the elastic filling layer is arranged between the bending-resistant piece and inner sheath layer, the inside of the elastic filling layer is provided with ZRBV soft plastic bag ring, the inside of the ZRBV soft plastic bag ring is provided with core.

[0007] By adopting the above technical scheme, by setting outer sheath layer, reinforcing net layer, insulating shield tape, support layer, inner sheath layer, elastic filling layer, bending-resistant piece and cavity, the compression resistance and bending resistance of the cable are enhanced, and the service life of the composite cable is enhanced.

[0008] Further, the outer sheath layer and the inner sheath layer are both ceramicized silicone rubber sleeves.

[0009] By adopting the technical scheme, the outer sheath layer and the inner sheath layer formed by the ceramicized silicone rubber sleeve make the surface of the cable have excellent fireproof and flame-retardant effects.

[0010] Further, the support layer is an epoxy resin layer, and the support layer is internally provided with annularly distributed silicone rubber strips, and the silicone rubber strips are internally provided with high polymer nylon fiber strands.

[0011] By adopting the technical scheme, the support layer formed by the epoxy resin layer ensures that the cable has a certain elasticity, and meanwhile, the annularly distributed silicone rubber strips and the high polymer nylon fiber strands internally provided in the support layer enhance the bending resistance and tensile resistance of the cable, can play a role in extrusion and buffering when the core is bent, avoid damage of the core when the core is extruded, and further increase the service life of the composite cable.

[0012] Further, the insulating shielding tape is a non-metal shielding layer made of conductive composite material and polyolefin.

[0013] By adopting the technical scheme, the insulating shielding tape formed by the non-metal shielding layer made of the conductive composite material and the polyolefin improves the insulation performance of the cable, improves the anti-interference ability of the cable, and improves the tensile strength of the cable.

[0014] Further, the bending-resistant piece is made of insulating ethylene-propylene rubber, and the bending-resistant piece is internally provided with a four-corner star-shaped cavity.

[0015] By adopting the technical scheme, the bending-resistant piece formed by the insulating ethylene-propylene rubber and the four-corner star-shaped cavity internally provided in the bending-resistant piece can provide buffering for the bending of the cable when external force acts on the cable, and improve the tensile resistance and compression resistance of the composite cable.

[0016] Further, the elastic filling layer is a polyurethane foaming agent, and the elastic filling layer is internally provided with four symmetrically distributed ZRBV soft plastic rings.

[0017] By adopting the technical scheme, the elastic filling layer formed by the polyurethane foaming agent enhances the support strength of the cable while having a certain elasticity, and can enhance the bending resistance of the cable.

[0018] In summary, the utility model has the following beneficial effects:

[0019] 1. In this application, the outer sheath layer and inner sheath layer composed of ceramicized silicone rubber sleeve give the cable surface excellent fireproof and flame-retardant effects. The reinforcing mesh layer can improve the bending strength of the composite cable. The insulating shielding tape composed of conductive composite material and polyolefin non-metallic shielding layer improves the insulation performance of the cable, improves the anti-interference ability of the cable, and improves the strength of the cable.

[0020] 2. In this application, by setting a support layer composed of epoxy resin layer, the cable has a certain degree of elasticity. At the same time, the internal annularly distributed silicone rubber strips and high-polymer nylon fiber strands enhance the cable's bending and tensile strength, which can play a role in squeezing and buffering when the wire core is bent, avoiding damage when the wire core is squeezed, and further increasing the service life of the composite cable.

[0021] 3. In this application, by setting an elastic filling layer composed of polyurethane foam, the internal support strength of the cable is enhanced while also having a certain degree of elasticity, which can enhance the bending resistance of the cable. By setting a bending-resistant component made of insulating ethylene propylene rubber and a four-pointed star-shaped cavity inside, the cable can be buffered when external forces are applied to the cable, while improving the tensile strength of the composite cable. Attached Figure Description

[0022] Fig. 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Fig. 2 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0024] Fig. 3 This is a schematic diagram of the structure of the ZRBV soft plastic sheath, the bending-resistant component, the cavity, and the wire core in the embodiment of this utility model.

[0025] In the diagram: 1. Outer sheath layer; 2. Reinforcing mesh layer; 3. Insulating shielding tape; 4. Support layer; 41. Silicone rubber strip; 42. High-polymer nylon fiber stranded wire; 5. Inner sheath layer; 6. ZRBV soft plastic ring; 7. Elastic filling layer; 8. Bending resistant component; 9. Cavity; 10. Wire core. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] like Figs. 1-3As shown, the embodiment of the present application discloses a kind of bending-resistant composite cable structure, including outer sheath layer 1, the inner wall of outer sheath layer 1 is provided with reinforcing net layer 2, the inner wall of reinforcing net layer 2 is provided with insulating shield tape 3, the inner wall of insulating shield tape 3 is provided with support layer 4, the inner wall of support layer 4 is provided with inner sheath layer 5, the inner wall of inner sheath layer 5 is provided with bending-resistant component 8, the inner wall of bending-resistant component 8 is provided with elastic filling layer 7, the inside of elastic filling layer 7 is provided with ZRBV soft plastic packing ring 6, the inside of ZRBV soft plastic packing ring 6 is provided with wire core 10.

[0028] The outer sheath layer 1 and the inner sheath layer 5 are both ceramicized silicone rubber sleeves; the support layer 4 is an epoxy resin layer, the inside of the support layer 4 is provided with annularly distributed silicone rubber strips 41, the inside of the silicone rubber strips 41 is provided with high polymer nylon fiber cords 42; the insulating shield tape 3 is a non-metallic shielding layer made of conductive composite material and polyolefin; the bending-resistant component 8 is made of insulating ethylene-propylene rubber material, the inside of the bending-resistant component 8 is provided with a four-star-shaped cavity 9; the elastic filling layer 7 is a polyurethane foaming agent, the inside of the elastic filling layer 7 is provided with four symmetrically distributed ZRBV soft plastic packing rings 6.

[0029] The use principle of the bending-resistant composite cable structure in the embodiment is as follows: the outer sheath layer 1 and the inner sheath layer 5 formed by the ceramicized silicone rubber sleeves make the surface of the cable have excellent fireproof and flame-retardant effects; the reinforcing net layer 2 is arranged to improve the bending strength of the composite cable; the insulating shield tape 3 formed by the non-metallic shielding layer made of conductive composite material and polyolefin improves the insulation performance of the cable, the anti-interference ability of the cable, and the strength of the cable; the support layer 4 formed by the epoxy resin layer ensures that the cable has a certain elasticity, and the annularly distributed silicone rubber strips 41 and high polymer nylon fiber cords 42 inside the support layer 4 enhance the bending resistance and tensile resistance of the cable, can play a role in extrusion buffering when the wire core 10 is bent, avoid damage to the wire core 10 when it is extruded, and can further increase the service life of the composite cable; the elastic filling layer 7 formed by the polyurethane foaming agent enhances the support strength inside the cable while having a certain elasticity, which can enhance the bending resistance of the cable; the bending-resistant component 8 formed by the insulating ethylene-propylene rubber material and the four-star-shaped cavity 9 arranged inside the bending-resistant component 8 can provide buffering for the bending of the cable when external force acts on the cable, and can improve the tensile resistance of the composite cable.

[0030] The above merely is preferred implementation manner of the present application, the protection scope of the present application is not only limited to the above examples, and belongs to the technical scheme under the idea of the present application all belongs to the protection scope of the present application. It should be pointed out that, for ordinary skilled person in the art, under the premise of not departing from the principle of the present application, some improvements and decorations, these improvements and decorations should also be considered as the protection scope of the present application.

Claims

1. A bend resistant composite cable construction comprising an outer jacket layer (1) characterised in that: The inner wall of the outer sheath layer (1) is provided with a reinforcing mesh layer (2), the inner wall of the reinforcing mesh layer (2) is provided with an insulating shielding tape (3), the inner wall of the insulating shielding tape (3) is provided with a support layer (4), the inner wall of the support layer (4) is provided with an inner sheath layer (5), the inner wall of the inner sheath layer (5) is provided with a bending-resistant piece (8), an elastic filling layer (7) is arranged between the bending-resistant piece (8) and the inner sheath layer (5), the inside of the elastic filling layer (7) is provided with a ZRBV soft plastic wrapping ring (6), and the inside of the ZRBV soft plastic wrapping ring (6) is provided with a wire core (10).

2. A bend resistant composite cable construction according to claim 1, characterized in that: The outer sheath layer (1) and the inner sheath layer (5) are both ceramicized silicone rubber sleeves.

3. The bend-resistant composite cable construction of claim 1, wherein: The support layer (4) is an epoxy resin layer, and the inside of the support layer (4) is provided with annularly distributed silicone rubber strips (41), and the inside of the silicone rubber strips (41) is provided with high-polyamide fiber twisted wires (42).

4. The bend-tolerant composite cable structure of claim 1, wherein: The insulating shielding tape (3) is a non-metal shielding layer made of conductive composite material and polyolefin.

5. The bend-tolerant composite cable structure of claim 1, wherein: The bending-resistant piece (8) is made of insulating ethylene-propylene rubber, and the inside of the bending-resistant piece (8) is provided with a four-corner star-shaped cavity (9).

6. The bend-tolerant composite cable structure of claim 1, wherein: The elastic filling layer (7) is a polyurethane foaming agent, and the inside of the elastic filling layer (7) is provided with four symmetrically distributed ZRBV soft plastic wrapping rings (6).

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