Mineral insulated flame-retardant fire-resistant cable
By introducing a multi-layered wrapping structure, including elastic ribs and limiting strips, into the cable, the problem of cable damage during bending is solved, the bending ability and flame-retardant and fire-resistant performance of the cable are improved, and a better protective effect is achieved.
Patent Information
- Application Number
- CN202520338341.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing cables are easily damaged during bending, especially due to internal structural compression leading to breakage, and their flame-retardant and fire-resistant properties are insufficient, failing to meet modern safety requirements.
The cable employs a combination structure of elastic ribs, limiting strips, elastic layers, nylon ropes, tough strips, outer wrapping layers, and inner wrapping layers to enhance its elasticity and toughness. The multi-layer wrapping structure disperses bending forces and prevents internal structural compression. Furthermore, mineral layers and insulating mesh layers are used to improve insulation and fire resistance.
It improves the cable's bending ability and overall elasticity, prevents damage to the internal structure, enhances flame retardancy and fire resistance, and protects the cable's internal structure from damage.
Smart Images
Figure CN223911430U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cable technical field, concretely is a kind of mineral insulation flame-retardant fire-resistant cable. BACKGROUND
[0002] The current cable is usually by several or several groups of wires each group at least two strands twisted into cable similar to rope, each group of wires is mutually insulated, and is often twisted around a center, the whole outside is covered with highly insulating covering layer, cable has the characteristics of internal power supply, external insulation, with the development of the times, ordinary cable cannot meet the safe use requirements of some industries to supporting cable, especially the flame-retardant performance and fireproof performance have great gap with actual demand, therefore, the market has high expectation to flame-retardant fire-resistant cable, flame-retardant fire-resistant cable, limit refers to the direct or indirect reduction of fire loss characteristics under normal fire conditions one kind of wire and cable.
[0003] The current cable bending capacity is limited, excessive bending can cause extrusion of internal structure, easy to damage internal structure, and internal excessive bending also easily causes the condition of rupture to occur, thereby affecting the use of cable. UTILITY MODEL CONTENT
[0004] The utility model provides a kind of mineral insulation flame-retardant fire-resistant cable, by elastic rib, limit strip, elastic layer, nylon rope, tenacity strip, outer wrapping layer and inner wrapping layer, can increase the elasticity and tenacity of cable whole, make cable bending curvature be greater, and protect inside, prevent internal mutual extrusion, increase the elasticity of cable outside simultaneously, better protection of cable.
[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of mineral insulation flame-retardant fire-resistant cable, comprising:
[0006] Cable sheath, the inner wall of the cable sheath is fixedly embedded with insulating mesh layer, the inner wall of the insulating mesh layer is fixedly embedded with mineral layer, and the inner wall of the mineral layer is filled with heat insulation layer;
[0007] Wrapping structure, is located in heat insulation layer;
[0008] The wrapping structure includes outer wrapping layer, inner wrapping layer and multiple fixed tubes, the outer wall of the outer wrapping layer is fixedly embedded in heat insulation layer, multiple the fixed tube is fixedly embedded between outer wrapping layer and inner wrapping layer along the equidistant circumferential surface, multiple buffer strip is embedded along the equidistant circumferential surface between the outer wrapping layer and the inner wrapping layer, and the inner wall of multiple the fixed tube is fixedly embedded with cable wire.
[0009] As a kind of mineral insulation flame-retardant fire-resistant cable of the utility model, the outer wall of the outer wrapping layer is equidistantly extended along the circumferential surface and is provided with multiple limit strips, and the outer wall of multiple the limit strip is fixedly embedded in heat insulation layer.
[0010] As the utility model discloses a mineral insulation flame-retardant fire -resistant cable, the inner wall of the inner wrapping layer is fixedly embedded with the elastic layer, and the inner wall center of the elastic layer is fixedly embedded with nylon rope.
[0011] As the utility model discloses a mineral insulation flame-retardant fire -resistant cable, the inner wall of the elastic layer is fixedly embedded with a plurality of toughness strips, and the plurality of toughness strips are equidistantly arranged along the circumferential surface.
[0012] As the utility model discloses a mineral insulation flame-retardant fire -resistant cable, the outer wall of the cable sheath is sprayed with a protective layer.
[0013] As the utility model discloses a mineral insulation flame-retardant fire -resistant cable, the inner wall of the cable sheath is fixedly embedded with a plurality of elastic ribs, and the plurality of elastic ribs are equidistantly wound and arranged along the circumferential surface.
[0014] The utility model provides a mineral insulation flame-retardant fire -resistant cable. Have the following beneficial effect:
[0015] (1) the mineral insulation flame-retardant fire -resistant cable, through elastic rib, spacing strip, elastic layer, nylon rope, toughness strip, outer wrapping layer and inner wrapping layer, can increase the elasticity and toughness of cable whole, make the cable bending curvature be greater, and protect inside, prevent inside mutual extrusion, increase the elasticity of cable outside simultaneously, better the protection of cable. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is the front view of the utility model;
[0017] Fig. 2 It is the side view of the utility model;
[0018] Fig. 3 It is the section view of the utility model.
[0019] In the drawing: 1, cable sheath;2, insulation net layer;3, mineral layer;4, heat insulating layer;5, outer wrapping layer;6, inner wrapping layer;7, fixed pipe;8, buffer strip;9, cable line;10, spacing strip;11, elastic layer;12, nylon rope;13, toughness strip;14, protective layer;15, elastic rib. DETAILED DESCRIPTION
[0020] The technical scheme in the utility embodiment will be clearly and completely described below in combination with the drawings in the utility embodiment, and apparently, the described embodiments are only part of the embodiments of the utility, not all the embodiments. Based on the embodiments in the utility, all other embodiments obtained by those skilled in the art without creative labor belong to the range of protection of the utility.
[0021] Please refer to Figs. 1-3 The utility model provides a technical scheme: a mineral insulation flame -retardant fire -resistant cable, it includes:
[0022] The inner wall of cable sheath 1 is fixedly embedded with insulation net layer 2, the inner wall of insulation net layer 2 is fixedly embedded with mineral layer 3, and the inner wall of mineral layer 3 is filled with heat insulation layer 4.
[0023] The wrapping structure is arranged in the heat insulation layer 4.
[0024] The wrapping structure includes an outer wrapping layer 5, an inner wrapping layer 6, and a plurality of fixed tubes 7. The outer wall of the outer wrapping layer 5 is fixedly embedded in the heat insulation layer 4. The plurality of fixed tubes 7 are fixedly embedded between the outer wrapping layer 5 and the inner wrapping layer 6 along the circumferential surface at equal distances. A plurality of buffer strips 8 are fixedly embedded between the outer wrapping layer 5 and the inner wrapping layer 6 along the circumferential surface at equal distances. The inner wall of each of the plurality of fixed tubes 7 is fixedly embedded with a cable 9.
[0025] In the embodiment: the cable sheath 1 can protect the inside, and the cable sheath 1 is made of wear-resistant material, the insulation net layer 2 can play a role of insulation, and the mineral layer 3 forms double insulation, increases the insulation capacity, and the heat insulation layer 4 blocks the external temperature from eroding the inside. The plurality of buffer strips 8 connect between the outer wrapping layer 5 and the inner wrapping layer 6, increase the bending of the cable 9 between the outer wrapping layer 5 and the inner wrapping layer 6, and disperse the contraction force of bending by the plurality of buffer strips 8. The plurality of fixed tubes 7 can protect the cable 9.
[0026] Specifically, the outer wall of the outer wrapping layer 5 extends a plurality of limiting strips 10 along the circumferential surface at equal distances, and the outer wall of each of the plurality of limiting strips 10 is fixedly embedded in the heat insulation layer 4.
[0027] In the embodiment: the plurality of limiting strips 10 can prevent the outer wrapping layer 5 from rotating.
[0028] Specifically, the inner wall of the inner wrapping layer 6 is fixedly embedded with an elastic layer 11, and the inner wall of the elastic layer 11 is fixedly embedded with a nylon rope 12 at the center.
[0029] In the embodiment: the elastic layer 11 can increase the bending capacity of the cable, and the nylon rope 12 prevents the center from breaking.
[0030] Specifically, the inner wall of the elastic layer 11 is fixedly embedded with a plurality of toughness strips 13, and the plurality of toughness strips 13 are arranged along the circumferential surface at equal distances.
[0031] In the embodiment: the plurality of toughness strips 13 can increase the toughness of the elastic layer 11, prevent the elastic layer 11 from breaking, and affect the bending capacity.
[0032] Specifically, the outer wall of the cable sheath 1 is sprayed with a protective layer 14.
[0033] In the embodiment, the protection layer 14 is formed by mixing preservative materials and is sprayed on the cable sheath 1, so that the cable sheath 1 can be prevented from being bitten by mice and insects.
[0034] Specifically, the inner wall of the cable sheath 1 is fixedly embedded with a plurality of elastic ribs 15, and the plurality of elastic ribs 15 are arranged at equal intervals along the circumferential surface.
[0035] In the embodiment, the plurality of elastic ribs 15 are embedded in the cable sheath 1 in a winding manner, so that the bending capacity of the cable sheath 1 is increased.
[0036] In use, the cable sheath 1 can protect the inside, and the cable sheath 1 is made of wear-resistant materials, the protection layer 14 is formed by mixing preservative materials and is sprayed on the cable sheath 1, so that the cable sheath 1 can be prevented from being bitten by mice and insects, the insulating mesh layer 2 can play a role of insulation, and the double insulation is formed by cooperating with the mineral layer 3, so that the insulation capacity is increased, the heat insulation layer 4 blocks the external temperature from eroding the inside, the plurality of buffer strips 8 are connected between the outer wrapping layer 5 and the inner wrapping layer 6, so that the bending of the cable wire 9 between the outer wrapping layer 5 and the inner wrapping layer 6 is increased, the contraction force of the bending is dispersed by the plurality of buffer strips 8, the plurality of fixed tubes 7 can protect the cable wire 9, the plurality of limiting strips 10 can prevent the outer wrapping layer 5 from rotating, the elastic layer 11 can increase the bending capacity of the cable, the nylon rope 12 can prevent the center from being broken, the plurality of toughness strips 13 can increase the toughness of the elastic layer 11, so that the elastic layer 11 is prevented from being broken and the bending capacity is affected, the plurality of elastic ribs 15 are embedded in the cable sheath 1 in a winding manner, so that the bending capacity of the cable sheath 1 is increased, the elasticity and toughness of the cable as a whole are increased, the bending curvature of the cable is larger, the inside is protected, the inside is prevented from being pressed, the elasticity of the outside of the cable is increased, and the cable is better protected.
[0037] The above merely describes a preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. A mineral-insulated, flame-retardant, fire-resistant cable, characterized in that, Include: The inner wall of the cable sheath (1) is fixedly embedded with an insulating mesh layer (2), the inner wall of the insulating mesh layer (2) is fixedly embedded with a mineral layer (3), and the inner wall of the mineral layer (3) is filled with a heat insulation layer (4); The wrapping structure is provided in the heat insulation layer (4); The wrapping structure includes an outer wrapping layer (5), an inner wrapping layer (6) and a plurality of fixed tubes (7), the outer wall of the outer wrapping layer (5) is fixedly embedded in the heat insulation layer (4), a plurality of the fixed tubes (7) are fixedly embedded between the outer wrapping layer (5) and the inner wrapping layer (6) along the equidistant circumferential surface, a plurality of buffer strips (8) are embedded between the outer wrapping layer (5) and the inner wrapping layer (6) along the equidistant circumferential surface, and the inner wall of the plurality of fixed tubes (7) is fixedly embedded with a cable (9).
2. A mineral insulated fire-retardant fire-resistant cable according to claim 1, characterized in that: The outer wall of the outer wrapping layer (5) is provided with a plurality of limiting strips (10) along the equidistant circumferential surface, and the outer wall of the plurality of limiting strips (10) is fixedly embedded in the heat insulation layer (4).
3. A mineral insulated fire resistant cable as claimed in claim 2, characterised in that: The inner wall of the inner wrapping layer (6) is fixedly embedded with an elastic layer (11), and the inner wall of the elastic layer (11) is fixedly embedded with a nylon rope (12) at the center.
4. A mineral insulated fire resistant cable as claimed in claim 3, characterised in that: The inner wall of the elastic layer (11) is fixedly embedded with a plurality of toughness strips (13), and the plurality of toughness strips (13) are arranged equidistantly along the circumferential surface.
5. A mineral insulated fire resistant cable as claimed in claim 4, characterised in that: The outer wall of the cable sheath (1) is sprayed with a protective layer (14).
6. A mineral insulated fire resistant cable as claimed in claim 5, characterised in that: The inner wall of the cable sheath (1) is fixedly embedded with a plurality of elastic ribs (15), and the plurality of elastic ribs (15) are arranged equidistantly along the circumferential surface.