High-strength flame-retardant impregnated wire
By introducing a halogen-free plastic thick skin and silicate microparticle outer sheath and inner sheath structure into the impregnation line, combined with tensile steel wire, the problems of insufficient tensile strength, flame retardant, heat insulation and explosion-proof performance of the impregnation line are solved, achieving high strength and high temperature resistance explosion-proof effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-04-07
AI Technical Summary
Existing dipped wires have poor tensile strength, flame retardant, heat insulation and explosion-proof performance, resulting in severe wire breakage and burn damage. They lack reinforced tensile strength and internal protective structures for the wire core.
It adopts an outer protective layer made of halogen-free plastic thick skin and silicate microparticles, with an inner sheath consisting of an outer silicone coating, a sponge strip, and an inner silicone coating, and is equipped with tensile steel wire inside, forming a high-strength flame-retardant impregnated line structure.
It improves the cable's high-temperature resistance, explosion-proof function, flame-retardant and buffering performance, enhances the overall tensile strength, and improves the overall performance of the cable.
Smart Images

Figure CN224096439U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of impregnation line technology, specifically a high-strength flame-retardant impregnation line. Background Technology
[0002] Existing impregnated yarns have relatively poor tensile strength, flame retardant, heat insulation, and explosion-proof properties, resulting in severe breakage and burn damage. They also lack structures to enhance tensile strength and provide internal protection for the wire core. Therefore, a high-strength, flame-retardant impregnated yarn is proposed to address these issues. Utility Model Content
[0003] The purpose of this invention is to provide a high-strength flame-retardant impregnated thread in order to solve the above-mentioned problems.
[0004] This utility model achieves the above-mentioned objective through the following technical solution: a high-strength flame-retardant impregnated wire, comprising cable branch lines, polyester tape, aluminum-plastic composite tape, inner sheath, tensile steel wire, and outer sheath. The cable branch lines are wrapped inside the polyester tape, the polyester tape is wrapped inside the aluminum-plastic composite tape, the aluminum-plastic composite tape is wrapped inside the inner sheath, the inner sheath is wrapped inside the tensile steel wire, and the tensile steel wire is wrapped inside the outer sheath.
[0005] Preferably, the cable branch is provided with a plurality of branches, and the plurality of cable branches are tightly contacted together by a stranding device to form a complete wire core.
[0006] Preferably, the inner sheath includes an outer silicone coating, a sponge strip, and an inner silicone coating. Both the outer and inner silicone coatings are solidified on the outer and inner sides of the sponge strip by spraying silicone liquid, and both the outer and inner silicone coatings are soft silicone layers.
[0007] Preferably, the outer protective layer comprises a halogen-free plastic film and silicate microparticles, wherein the silicate microparticles are mixed with the halogen-free plastic raw material and formed into a halogen-free plastic film through plastic melting.
[0008] Preferably, the outer protective layer further includes a fiberglass layer and an asbestos tape, the asbestos tape being wrapped around the outer surface of the inner sheath, and the outer side of the asbestos tape being wrapped around the inner side of the halogen-free plastic thick skin.
[0009] Preferably, the glass fiber layer is located in the middle of the halogen-free plastic thick skin, and the thickness of the glass fiber layer is 0.5 mm.
[0010] Compared with the prior art, the advantages of this utility model are as follows: the outer sheath formed by halogen-free plastic thick layer and silicate microparticles enables the cable to have high temperature resistance and explosion-proof function; the inner sheath formed by outer silicone coating, sponge tape and inner silicone coating is set in the middle of the cable, and the sponge tape is soaked and adsorbed with flame retardant liquid, which enables the cable to have flame retardant buffer function, and the tensile steel wire set inside increases the overall tensile strength. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the inner sheath structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the outer protective layer structure of this utility model.
[0015] In the diagram: 1. Cable branch, 2. Polyester tape, 3. Aluminum-plastic composite tape, 4. Inner sheath, 41. Outer silicone coating, 42. Sponge tape, 43. Inner silicone coating, 5. Tensile steel wire, 6. Outer sheath, 61. Halogen-free plastic thick sheath, 62. Silicate microparticles, 63. Fiberglass layer, 64. Asbestos tape. Detailed Implementation
[0016] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0019] Please see Figure 1-3 As shown, a high-strength flame-retardant impregnated cable includes cable branch 1, polyester tape 2, aluminum-plastic composite tape 3, inner sheath 4, tensile steel wire 5, and outer sheath 6. The cable branch 1 is wrapped inside the polyester tape 2, the polyester tape 2 is wrapped inside the aluminum-plastic composite tape 3, the aluminum-plastic composite tape 3 is wrapped inside the inner sheath 4, the inner sheath 4 is wrapped inside the tensile steel wire 5, and the tensile steel wire 5 is wrapped inside the outer sheath 6.
[0020] Furthermore, the cable branch line 1 is provided in several parts, and the several cable branch lines 1 are tightly connected together by a twisting device to form a complete wire core.
[0021] Furthermore, the inner sheath 4 includes an outer silicone coating 41, a sponge strip 42, and an inner silicone coating 43. The outer silicone coating 41 and the inner silicone coating 43 are both solidified on the outer and inner sides of the sponge strip 42 by spraying silicone liquid, and both the outer silicone coating 41 and the inner silicone coating 43 are soft silicone layers.
[0022] Furthermore, the outer protective layer 6 includes a halogen-free plastic skin 61 and silicate microparticles 62, wherein the silicate microparticles 62 are mixed with the halogen-free plastic raw material and formed into the halogen-free plastic skin 61 by plastic melting.
[0023] Furthermore, the outer protective layer 6 also includes a glass fiber layer 63 and an asbestos tape 64, the asbestos tape 64 being wrapped around the outer surface of the inner sheath 4, and the outer side of the asbestos tape 64 being wrapped around the inner side of the halogen-free plastic thick skin 61.
[0024] Furthermore, the glass fiber layer 63 is located in the middle of the halogen-free plastic thick skin 61, and the thickness of the glass fiber layer 63 is 0.5 mm.
[0025] Compared with existing technologies, the differences are as follows: the outer sheath 6, formed by a halogen-free plastic thick layer 61 and silicate microparticles 62, enables the cable to have high temperature resistance and explosion-proof function; the inner sheath 4, formed by an outer silicone coating 41, a sponge tape 42 and an inner silicone coating 43, is set in the middle of the cable, and the sponge tape 42 is soaked and adsorbed with flame retardant liquid, enables the cable to have flame retardant buffer function, and the tensile steel wire 5 set inside increases the overall tensile strength.
[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0027] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A high-strength flame-retardant impregnated thread, characterized in that: The cable includes cable branch (1), polyester tape (2), aluminum-plastic composite tape (3), inner sheath (4), tensile steel wire (5) and outer sheath (6). The cable branch (1) is wrapped in polyester tape (2), the polyester tape (2) is wrapped in aluminum-plastic composite tape (3), the aluminum-plastic composite tape (3) is wrapped in inner sheath (4), the inner sheath (4) is wrapped in tensile steel wire (5), and the tensile steel wire (5) is wrapped in outer sheath (6).
2. The high-strength flame-retardant impregnated thread according to claim 1, characterized in that: The cable branch (1) is provided in several parts, and the several cable branch (1) are tightly connected together by a stranding device to form a complete wire core.
3. The high-strength flame-retardant impregnated thread according to claim 1, characterized in that: The inner sheath (4) includes an outer silicone coating (41), a sponge strip (42) and an inner silicone coating (43). The outer silicone coating (41) and the inner silicone coating (43) are both solidified on the outer and inner sides of the sponge strip (42) by spraying silicone liquid, and both the outer silicone coating (41) and the inner silicone coating (43) are soft silicone layers.
4. The high-strength flame-retardant impregnated thread according to claim 1, characterized in that: The outer sheath (6) also includes a glass fiber layer (63) and an asbestos strip (64), the asbestos strip (64) being wrapped around the outer side of the inner sheath (4), and the outer side of the asbestos strip (64) being wrapped around the inner side of the halogen-free plastic thick skin (61).
5. A high-strength flame-retardant impregnated thread according to claim 4, characterized in that: The glass fiber layer (63) is located in the middle of the halogen-free plastic thick skin (61), and the thickness of the glass fiber layer (63) is 0.5 mm.