High-flexibility flame-retardant cable

Abstract

The utility model discloses a high-flexibility flame-retardant cable, which comprises a plurality of cable cores, an inner flame-retardant layer is extruded outside the plurality of cable cores, a plurality of flame-retardant components are lapped on the outer wall of the inner flame-retardant layer, a plurality of low-halogen polyvinyl chloride strips are mutually wound to form the flame-retardant components, a plurality of filling strips are lapped outside the plurality of flame-retardant components, and a plurality of low-halogen polyvinyl chloride strips are lapped outside the filling strips. An inner flame-retardant layer is arranged on the outer side of the inner flame-retardant layer, a plurality of filling strips are arranged on the outer side of the inner flame-retardant layer, an outer flame-retardant layer is arranged on the outer side of the plurality of filling strips, a plurality of grooves are formed in the outer surface of the inner flame-retardant layer, a waterproof coating is arranged on the outer surface of the outer flame-retardant layer and is a polyvinyl chloride coating, and an ultraviolet-proof coating is arranged on the outer surface of the waterproof coating. According to the utility model, the flame-retardant assembly is formed by winding a plurality of low-halogen polyvinyl chloride strips, so that the cable has good elasticity and toughness, the cable can be bent conveniently, and the cable can be prevented from being broken when being bent.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field especially relates to a high flexibility flame -retardant cable. BACKGROUND

[0002] At present, in the use of cable, will set up fire -retardant, insulation etc. Structure on the cable, is used for promoting the safety of cable application.

[0003] Among them, through the retrieval, the patent number for CN221766410U of China, disclosed a kind of flame -retardant cable, above-mentioned patent with the structure scheme of fire -retardant winding layer realizes the function of cable fire -retardant, but due to the structure wrapped outside cable is more, leading to the flexibility of cable reduces, in order to industry technology progress, guaranteeing cable flame -retardant while safeguarding the function of cable flexibility, improve core technology competitiveness, the present application proposes a new implementation scheme different from cable in prior art. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the structure wrapped outside existing cable is more, leading to the flexibility of cable reduces, inconvenient bending problem, and proposes a kind of high flexibility flame -retardant cable.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of high flexibility flame -retardant cable, including multiple cable cores, the outer side of multiple cable cores is extruded and is wrapped with inner flame -retardant layer, the outer wall of inner flame -retardant layer is wrapped with multiple flame -retardant components, flame -retardant component is formed by the mutual entanglement of multiple low-halogen polyvinyl chloride strips, the outer side of multiple flame -retardant components is wrapped with multiple filling strips, the outer side of multiple filling strips is wrapped with outer flame -retardant layer.

[0007] Further, the outer surface of the inner flame -retardant layer is provided with a plurality of grooves.

[0008] Further, the outer surface of the outer flame -retardant layer is provided with a waterproof coating.

[0009] Further, the waterproof coating is a polyvinyl chloride coating.

[0010] Further, the outer surface of the waterproof coating is provided with a uvioresistant coating.

[0011] Further, the uvioresistant coating is a polyurethane coating.

[0012] Further, the inner flame -retardant layer, outer flame -retardant layer and filling strip are all made of silicone rubber.

[0013] The utility model has the advantages that:

[0014] 1. The setting of the plurality of low-halogen polyvinyl chloride strips of the fire-retardant assembly is wound to form the cable, so that the cable has good elasticity and toughness, and the bending of the cable is facilitated, so that the breaking of the cable when bending is prevented, and the flexibility is improved.

[0015] 2. The setting of the silicon rubber of the inner fire-retardant layer and the outer fire-retardant layer makes the cable have good fire-retardant performance, high temperature resistance and non-flammability, and the inner fire-retardant layer and the outer fire-retardant layer make the cable have double fire-retardant effects. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic diagram of a high-flexibility fire-retardant cable is provided for the utility model;

[0017] Figure 2 A partial cross-sectional structure schematic diagram of a high-flexibility fire-retardant cable is provided for the utility model;

[0018] Figure 3 A fire-retardant assembly part three-dimensional structure schematic diagram of a high-flexibility fire-retardant cable is provided for the utility model;

[0019] Figure 4 A front cross-sectional structure schematic diagram of a high-flexibility fire-retardant cable is provided for the utility model.

[0020] In the drawing: 1, cable core; 2, inner fire-retardant layer; 3, fire-retardant assembly; 301, low-halogen polyvinyl chloride strip; 4, outer fire-retardant layer; 5, groove; 6, filling strip; 7, waterproof coating; 8, ultraviolet-proof coating. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] REFERENCE Figures 1-4 A high-flexibility fire-retardant cable includes a plurality of cable cores 1, the outer side of the plurality of cable cores 1 is extruded and covered with an inner fire-retardant layer 2, the outer wall of the inner fire-retardant layer 2 is wrapped with a plurality of fire-retardant assemblies 3, the fire-retardant assemblies 3 are formed by mutual winding of a plurality of low-halogen polyvinyl chloride strips 301, so that the elasticity and toughness of the cable are better, and the bending of the cable is facilitated, a plurality of grooves 5 are formed on the outer surface of the inner fire-retardant layer 2 by a mold when extrusion and covering, so that alignment during wrapping of the fire-retardant assemblies 3 is facilitated, the outer side of the plurality of fire-retardant assemblies 3 is wrapped with a plurality of filling strips 6, and the outer side of the plurality of filling strips 6 is wrapped with an outer fire-retardant layer 4.

[0023] The outer surface of the outer flame-retardant layer 4 is provided with a waterproof coating 7, which is a polyvinyl chloride coating, so that the cable has good water resistance and chemical resistance, and the outer surface of the waterproof coating 7 is provided with an ultraviolet-proof coating 8, which is a polyurethane coating, so that the cable has good chemical resistance and ultraviolet light resistance and can protect the cable in various environments.

[0024] The working principle of the embodiment is as follows: in use, first, the design that the inner flame-retardant layer 2 and the outer flame-retardant layer 4 are made of silicone rubber makes the cable have good flame-retardant performance, high temperature resistance and non-flammability, and the inner flame-retardant layer 2 and the outer flame-retardant layer 4 make the cable have double flame-retardant effects, then the design that the flame-retardant assembly 3 is formed by winding a plurality of low-halogen polyvinyl chloride strips 301 makes the flame-retardant assembly 3 have gaps, thereby providing space for the cable to bend and deform, and thus facilitating the bending of the cable, then the design that the waterproof coating 7 is a polyvinyl chloride coating makes the cable have good water resistance and chemical resistance, and the setting that the ultraviolet-proof coating 8 is a polyurethane coating has good chemical resistance and ultraviolet light resistance and can protect the cable in various environments.

[0025] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A high flexibility flame retardant cable comprising a plurality of cable cores (1), characterized in that, The outer side of the plurality of cable cores (1) is extruded with an inner flame-retardant layer (2), the outer wall of the inner flame-retardant layer (2) is wrapped with a plurality of flame-retardant components (3), the flame-retardant components (3) are formed by a plurality of low-halogen polyvinyl chloride strips (301) being wound with each other, the outer side of the plurality of flame-retardant components (3) is wrapped with a plurality of filling strips (6), and the outer side of the plurality of filling strips (6) is wrapped with an outer flame-retardant layer (4).

2. A high flexibility fire resistant cable according to claim 1, characterised in that, The outer surface of the inner flame-retardant layer (2) is provided with a plurality of grooves (5).

3. A high flexibility fire resistant cable according to claim 1, characterized in that, The outer surface of the outer flame-retardant layer (4) is provided with a waterproof coating (7).

4. A high flexibility fire resistant cable according to claim 3, characterised in that, The waterproof coating (7) is a polyvinyl chloride coating.

5. A high flexibility fire resistant cable according to claim 3, characterised in that, The outer surface of the waterproof coating (7) is provided with an ultraviolet-proof coating (8).

6. A high flexibility fire resistant cable according to claim 5, characterised in that, The ultraviolet-proof coating (8) is a polyurethane coating.

7. A high flexibility fire resistant cable according to claim 1, wherein, The inner flame-retardant layer (2), the outer flame-retardant layer (4) and the filling strip (6) are all made of silicone rubber.

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