Flexible tensile and torsion-resistant cable

Abstract

The utility model discloses a flexible tensile and torsion-resistant cable, which relates to the technical field of cables, and is characterized in that glass fiber ropes are filled and wrapped with flame-retardant non-woven fabrics, so that the cable has flame-retardant performance, the cable is prevented from being damaged by open fire combustion, and a low-smoke halogen-free flame-retardant polyolefin isolation sleeve is arranged, so that the flame-retardant performance is further enhanced, and the service life of the cable is prolonged. The cable is provided with the steel wire armoring, oxygen is prevented from entering the cable, the interference of external air on the stable condition in the cable is avoided, the cable has higher tensile performance through the arrangement of the steel wire armoring, and the situation that the cable is damaged due to bending or pulling is prevented. Through the arrangement of the thermoplastic polyurethane elastomer sheath, the cable can have excellent wear resistance, oil resistance and cold resistance, has good elasticity and bending resistance, and through the arrangement of other materials in the thermoplastic polyurethane elastomer sheath, the cable is prevented from being damaged by friction when the thermoplastic polyurethane elastomer sheath is damaged by friction. And the interior of the device can still work stably.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field, concretely is a kind of flexible tensile anti-twist cable. BACKGROUND

[0002] It is usually by several or several groups of wire (at least two in each group) twisted to be similar to cable of rope, each group of wire is mutually insulated, and it is twisted around a center generally, the whole outside is covered with highly insulated covering layer, cable has the characteristics of inner power supply, outer insulation.

[0003] According to the utility model discloses a cable, the raw material of the sheath pipe of cable, by weight parts, include: polyolefin 85 parts, wood ash 3 parts, gum 2 parts, silane coupling agent 0.6 parts, stearic acid 1.5 parts, white carbon black 0.7 parts, electrolytic zinc acid leaching residue 4 parts, the tensile strength of the obtained cable sheath pipe is above 26MPa, the elongation at break is above 750%, the oxygen index is above 36, the flame-retardant performance reaches A level, with the characteristics of remarkable strength and strong flame-retardant performance, simultaneously, recycling wood ash and electrolytic zinc acid leaching residue, reduce environmental pollution and reduce production cost, with remarkable economic benefit and environmental benefit;

[0004] However, the cable will be pulled when using and transporting, which may cause damage to the cable. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of flexible tensile anti-twist cable, to solve the deficiency in the above prior art.

[0006] To achieve the above object, the utility model provides the following technical scheme: including three wire cores, the wire core outside is provided with a limiting assembly, the limiting assembly can limit the wire core;

[0007] The limiting assembly is externally sleeved with a protection assembly, which can protect the limiting assembly.

[0008] Further, the wire core includes a plurality of copper conductors, and the plurality of copper conductors are mutually adhered in a wire bundle shape.

[0009] Further, the limiting assembly includes non-hygroscopic wrapping tape, three non-hygroscopic wrapping tapes are respectively and one-to-one sleeved on the three wire cores, and the three non-hygroscopic wrapping tapes are respectively and one-to-one sleeved by the three cold-resistant soft polyvinyl chloride insulation layers. The limiting assembly further includes a glass fiber layer, the glass limiting layer covers the three cold-resistant soft polyvinyl chloride insulation layers, the glass fiber layer is consistent with the length direction of the cold-resistant soft polyvinyl chloride insulation layer, and the cross section of the glass fiber layer is a circular surface.

[0010] Further, the protection assembly comprises a flame-retardant non-woven fabric sleeved outside the glass fiber layer, a low-smoke halogen-free flame-retardant polyolefin isolation sleeve is sleeved outside the flame-retardant non-woven fabric, a steel wire armor is sleeved outside the low-smoke halogen-free flame-retardant polyolefin isolation sleeve, and a thermoplastic polyurethane elastomer sheath is sleeved outside the steel wire armor.

[0011] Compared with the prior art, the flexible anti-tension and anti-twist cable provided by the utility model has the advantages that the output efficiency of the cable is more stable, the copper conductor has better extensibility, the copper conductor is prevented from being broken when being bent, the cable has stronger deformability, the cable can be applied to more use environments, the wire harness has water-proof efficiency due to the non-hygroscopic material, water in the wire core is prevented from causing short circuit, the wire core can withstand cold due to the cold-resistant soft polyvinyl chloride insulation layer, the loss caused by power transmission when the temperature is reduced is reduced, the wire core can have the cold-resistant function while the deformability is not affected due to the strong softness of the cold-resistant soft polyvinyl chloride insulation layer, the cable has the flame-retardant property due to the glass fiber rope filling and the wrapping of the flame-retardant non-woven fabric, open fire is prevented from burning the cable and causing damage to the cable, and safety accidents are avoided, the flame-retardant property is further improved due to the low-smoke halogen-free flame-retardant polyolefin isolation sleeve, oxygen is prevented from entering the cable, the cable is prevented from being interfered with by external air, the cable has stronger tensile resistance due to the steel wire armor, the cable is prevented from being damaged due to bending or pulling, the cable has excellent wear resistance, oil resistance and cold resistance due to the thermoplastic polyurethane elastomer sheath, the cable has good elasticity and anti-winding property, and the internal components of the thermoplastic polyurethane elastomer sheath can still work stably when the thermoplastic polyurethane elastomer sheath is damaged due to friction. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0013] Fig. 1 The overall structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0014] Fig. 2 The partial structure section schematic diagram provided by the embodiment of the present application is shown in the figure.

[0015] Explanation of reference signs:

[0016] 1, core; 2, non-hygroscopic wrapping tape; 3, cold-resistant soft polyvinyl chloride insulation layer; 4, glass fiber rope; 5, flame-retardant non-woven fabric; 6, low-smoke halogen-free flame-retardant polyolefin isolation sleeve; 7, steel wire armor; 8, thermoplastic polyurethane elastomer sheath. DETAILED DESCRIPTION

[0017] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.

[0018] Please refer to Figs. 1-2 The utility model discloses a kind of flexible tensile anti-torsion cable, including three cores, limiting assembly is arranged outside the core, the limiting assembly can limit the core;

[0019] Protective assembly is sleeved outside the limiting assembly, and the protective assembly can protect the limiting assembly.

[0020] Preferably, the core includes a plurality of copper conductors, and the plurality of copper conductors are mutually adhered in a wire bundle shape.

[0021] Preferably, the limiting assembly includes non-hygroscopic wrapping tape, three non-hygroscopic wrapping tapes are respectively and correspondingly sleeved on the three cores, and the three non-hygroscopic wrapping tapes are respectively and correspondingly sleeved by the three cold-resistant soft polyvinyl chloride insulation layers outside, the limiting assembly further includes a glass fiber layer, the glass limiting layer coats the three cold-resistant soft polyvinyl chloride insulation layers, the glass fiber layer is consistent with the length direction of the cold-resistant soft polyvinyl chloride insulation layer, the cross section of the glass fiber layer is a circular surface, the output efficiency of the cable is more stable by the plurality of copper conductors, the copper conductor has better extensibility, prevents the copper conductor from breaking when bending, and the cable has better formability, so that the cable can be applied in more environments, the wire bundle has waterproof efficiency by the non-hygroscopic material, prevents water from entering the core to cause short circuit, the core can withstand cold by the cold-resistant soft polyvinyl chloride insulation layer, the power transmission loss caused by temperature reduction is reduced, and the cold-resistant soft polyvinyl chloride insulation layer has strong softness, so that the core can have cold resistance while its formability is not affected.

[0022] Preferably, the protection assembly comprises a flame-retardant non-woven fabric sleeved outside the glass fiber layer, the flame-retardant non-woven fabric is sleeved with a low-smoke halogen-free flame-retardant polyolefin isolation sleeve, the low-smoke halogen-free flame-retardant polyolefin isolation sleeve is sleeved with a steel wire armor, and the steel wire armor is sleeved with a thermoplastic polyurethane elastomer sheath.

[0023] The specific implementation is that: through the arrangement of the copper wires, the output efficiency of the cable is more stable, the copper wires have better extensibility, the copper wires are prevented from being broken when being bent, and the cable has better deformability, so that the cable can be applied to more use environments.

[0024] The wire harness has water-proof efficiency through the arrangement of the non-hygroscopic material, and water in the wire core is prevented from causing short circuit.

[0025] The wire core can withstand cold through the arrangement of the cold-resistant soft polyvinyl chloride insulation layer, the loss caused by power transmission when the temperature is reduced is reduced, and the wire core can have cold resistance while the deformability is not affected due to the strong softness of the cold-resistant soft polyvinyl chloride insulation layer.

[0026] The cable has flame-retardant performance through the arrangement of the glass fiber rope filling and the flame-retardant non-woven fabric, the cable is prevented from being damaged by open fire, and safety accidents are avoided.

[0027] The flame-retardant performance is further improved through the arrangement of the low-smoke halogen-free flame-retardant polyolefin isolation sleeve, oxygen is prevented from entering the cable, and the external air is prevented from interfering with the stability of the cable.

[0028] The cable has better tensile resistance through the arrangement of the steel wire armor, and the cable is prevented from being damaged due to bending or pulling.

[0029] The setting of the thermoplastic polyurethane elastomer sheath enables the cable to have excellent wear resistance, oil resistance and cold resistance, and good elasticity and anti-winding resistance, and the setting of other materials inside the thermoplastic polyurethane elastomer sheath prevents the internal part from still working stably when the thermoplastic polyurethane elastomer sheath is damaged by friction.

[0030] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the present application.

Claims

1. A flexible, tensile- and torsion-resistant cable, characterized in that, It includes three wire cores, and a limiting component is provided on the outside of each wire core, which can limit the wire cores. The limiting component is covered by a protective component, which can protect the limiting component. The limiting component includes a non-hygroscopic wrapping tape, with three non-hygroscopic wrapping tapes respectively fitted onto the three wire cores. Each of the three non-hygroscopic wrapping tapes is respectively fitted with a cold-resistant and flexible polyvinyl chloride insulation layer. The limiting component also includes a glass fiber layer, which covers the three cold-resistant and flexible polyvinyl chloride insulation layers. The glass fiber layer is aligned with the length of the cold-resistant and flexible polyvinyl chloride insulation layers, and the cross-section of the glass fiber layer is circular. The protective component includes a flame-retardant nonwoven fabric sleeved on the outside of the glass fiber layer, an outer sleeve of the flame-retardant nonwoven fabric sleeve with a low-smoke halogen-free flame-retardant polyolefin isolation sleeve, an outer sleeve of the low-smoke halogen-free flame-retardant polyolefin isolation sleeve with a steel wire armor, and an outer sleeve of the steel wire armor with a thermoplastic polyurethane elastomer sheath.

2. The flexible tensile and torsion resistant cable according to claim 1, characterized in that, The core comprises several copper conductors, which are bonded together in a bundle-like manner.

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