Halogen-free low-smoke cross-linked polyolefin insulating nylon sheath flame-retardant wire

Abstract

The utility model discloses a halogen-free low-smoke cross-linked polyolefin insulating nylon sheath flame-retardant wire, which comprises a copper lead, an inner sheath arranged on the outer side of the copper lead, an inner groove arranged in the middle of the inner side of the inner sheath, a sleeve adhered on the outer side of the inner sheath, an outer groove arranged on the outer side of the sleeve, a middle sheath adhered and fixed on the outer side of the sleeve, and a nylon sheath arranged on the outer side of the middle sheath. A threaded groove body is formed in the outer side of the middle sleeve leather, reinforcing ribs are fixed in the threaded groove body, the outer sleeve leather is fixedly bonded to the outer side of the middle sleeve leather, protruding blocks are arranged on the outer side of the outer sleeve leather, an anti-abrasion pipe is fixed to the outer side of the outer sleeve leather, the inner sleeve leather and the middle sleeve leather are clamped and fixed through clamping blocks and outer grooves, and the outer sleeve leather and the middle sleeve leather are clamped and fixed through clamping blocks and outer grooves. The reinforcing ribs and the outer sleeve skin are fixed in a bonding mode, the outer sleeve skin and the anti-abrasion pipe can be fixedly connected in a clamping mode through the protruding block-positioning groove and the clamping groove-protruding block, connection and fixing of multiple sets of sleeve type structures are achieved, and the structural stability is improved.

Description

Technical Field

[0001] The utility model relates to the field of flame-retardant electric wire devices, in particular to a halogen-free low-smoke cross-linked polyolefin insulated nylon sheathed flame-retardant electric wire. Background Art

[0002] After searching, the patent with application number CN201822108695.1 is found. The utility model relates to a halogen-free, low-smoke, high-flame-retardant cross-linked polyolefin insulated wire and cable, which belongs to the technical field of wire and cable, including a conductor, an oxygen-isolating layer, a flame-retardant layer and an insulating layer. The outer side of the conductor is wrapped with an oxygen-isolating layer, and the outer side of the oxygen-isolating layer is provided with a flame-retardant layer. The flame-retardant layer is composed of an upper end veneer, a flame-retardant interlayer and an inner lining veneer from the inside to the outside. The flame-retardant interlayer is filled with a flame retardant, and the flame retardant is aluminum hydroxide. An insulating layer is extruded on the outer side of the flame-retardant layer; the conductor is a stranded conductor formed by twisting a plurality of tinned copper wires or copper wires, the oxygen-isolating layer is an overlappingly wrapped halogen-free, low-smoke, high-flame-retardant oxygen-isolating tape, and the insulating layer is formed by extruding a halogen-free, low-smoke, flame-retardant cross-linked polyolefin material. The cable has a simple structure, is safe to use, has the characteristics of halogen-free, low-smoke, high flame-retardant, and high tensile strength, and has better flame retardancy and safety and reliability than other common halogen-free wires and cables.

[0003] However, in actual use, the above patented cable has the following defects: it is easy to break when subjected to external pressure or bending, and its anti-torsion effect and structural strength are poor, which greatly reduces the service life of the halogen-free low-smoke cross-linked polyolefin cable wire. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a halogen-free, low-smoke, cross-linked polyolefin insulated, nylon sheathed, flame-retardant electric wire, which is wrapped and fixed by a plurality of groups of tubular structures made of specific materials through an inner sheath-middle sheath-outer sheath-wear-proof tube structure, wherein the inner sheath and the middle sheath structures are fixed by a clamping block-outer groove, the outer sheath-middle sheaths are fixed by a reinforcing rib and the outer sheaths by bonding, and the outer sheath-wear-proof tube can be fixed by a clamping block-positioning groove and a clamping groove-protrusion, thereby realizing connection and fixation of a plurality of groups of sleeve-type structures and improving structural stability.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a halogen-free low-smoke cross-linked polyolefin insulated nylon sheathed flame-retardant electric wire, comprising a copper conductor, an inner sheath is arranged on the outer side of the copper conductor, an inner groove is opened in the middle of the inner side of the inner sheath, a sleeve is bonded to the outer side of the inner sheath, an outer groove is opened on the outer side of the sleeve, a middle sheath is bonded and fixed to the outer side of the sleeve, a threaded groove is opened on the outer side of the middle sheath, and a reinforcing rib is fixed in the threaded groove, an outer sheath is bonded and fixed to the outer side of the middle sheath, a convex block is arranged on the outer side of the outer sheath, and an anti-wear tube is fixed to the outer side of the outer sheath.

[0006] As a preferred technical solution of the utility model, a protrusion is fixed on the outer side of the copper wire, and a groove body structure with a size matching the size of the protrusion is opened on the outer side of the inner groove.

[0007] As a preferred technical solution of the utility model, a clamping block is fixed on the inner side of the middle cover, and the clamping block is fixedly connected to the outer groove.

[0008] As a preferred technical solution of the utility model, at least five groups of reinforcing ribs are arranged at equal intervals on the outside of the middle cover.

[0009] As a preferred technical solution of the utility model, a plurality of groups of positioning grooves are equidistantly provided on the inner side of the wear-resistant tube, and a protrusion is fixed in each group of the positioning grooves, a clamping groove is provided on the outer side of the protrusion, and the protrusion is fixedly connected to the clamping groove.

[0010] As a preferred technical solution of the utility model, the outer sheath is made of insulating material, the middle sheath is made of flame retardant material, the inner sheath is made of halogen-free low-smoke cross-linked polyolefin material, and the reinforcing ribs are made of nylon.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] 1. In the present device, multiple groups of tubular structures of specific materials are wrapped and fixed by setting an inner skin-middle skin-outer skin-anti-wear tube structure, wherein the inner skin and the middle skin structures are fixed by clamping blocks-outer grooves, the outer skin-middle skins are fixed by reinforcing ribs and the outer skins are fixed by bonding, and the outer skin-anti-wear tube can be fixed by clamping blocks-positioning grooves and clamping grooves-protrusions, thereby realizing the connection and fixation of multiple groups of sleeve-type structures and improving the structural stability.

[0013] 2. In this device, the reinforcing rib structure is provided, and the multiple groups of nylon structures therein can play an anti-torsion effect and improve the structural strength.

[0014] 3. In this device, the middle sheath is made of flame-retardant material, the inner sheath is made of halogen-free low-smoke cross-linked polyolefin material, and the reinforcing ribs are made of nylon, which meets the requirements of on-site installation and construction and improves the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural side view of the utility model;

[0017] Figure 3 This is one of the structural split diagrams of the utility model;

[0018] Figure 4 This is the second structural split diagram of the utility model;

[0019] Figure 5 This is the third structural split diagram of the utility model;

[0020] Figure 6 It is a structural cross-sectional view of the copper conductor in the utility model.

[0021] Among them: 1. Copper conductor; 11. Protrusion; 2. Inner sheath; 21. Inner groove; 22. Sleeve; 23. Outer groove; 3. Middle sheath; 31. Reinforcement rib; 32. Block; 4. Outer sheath; 41. Protrusion; 42. Slot; 5. Anti-wear tube; 51. Positioning groove; 52. Block; 6. Flame-retardant halogen-free and low-smoke cross-linked polyolefin insulation; 7. Transparent nylon sheath. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0023] Embodiment:

[0024] like Figure 1-6As shown, the utility model provides a halogen-free low-smoke cross-linked polyolefin insulated nylon sheathed flame-retardant wire, including a copper conductor 1, an inner sheath 2 is arranged on the outer side of the copper conductor 1, an inner groove 21 is opened in the middle of the inner side of the inner sheath 2, a sleeve 22 is bonded to the outer side of the inner sheath 2, an outer groove 23 is opened on the outer side of the sleeve 22, a middle sheath 3 is bonded and fixed to the outer side of the sleeve 22, a threaded groove body is opened on the outer side of the middle sheath 3, and a reinforcing rib 31 is fixed in the threaded groove, an outer sheath 4 is bonded and fixed to the outer side of the middle sheath 3, a convex block 41 is arranged on the outer side of the outer sheath 4, and an anti-wear tube 5 is fixed to the outer side of the outer sheath 4; by setting the inner sheath 2-middle sheath 3-outer sheath 4-anti-wear tube 5 structure, multiple groups of tubular structures of specific materials are wrapped and fixed, wherein the inner sheath 2 and the middle sheath 3 are fixed by the clamping block 32-outer groove 23, the outer sheath 4-middle sheath 3 are fixed by the reinforcing rib 31 and the outer sheath 4 by bonding, and the outer sheath 4-wear-proof tube 5 can be fixed by the convex block 41-positioning groove 51 and the clamping groove 42-protrusion 52, so that multiple groups of sheath 22 structures are connected and fixed, and the structural stability is improved. The outer side of the copper wire 1 is sheathed with a flame-retardant halogen-free low-smoke cross-linked polyolefin insulation 6, and the outer side of the flame-retardant halogen-free low-smoke cross-linked polyolefin insulation 6 is sheathed with a transparent nylon sheath 7.

[0025] In other embodiments, a protrusion 11 is fixed on the outer side of the copper conductor 1, and a groove structure having a size that matches the size of the protrusion 11 is opened on the outer side of the inner groove 21; a clamping block 32 is fixed on the inner side of the middle sheath 3, and the clamping block 32 is fixedly connected to the outer groove 23; at least five groups of reinforcing ribs 31 are arranged at equal intervals on the outer side of the middle sheath 3; a plurality of groups of positioning grooves 51 are opened at equal intervals on the inner side of the anti-wear tube 5, and a protrusion 52 is fixed in each group of positioning grooves 51, and a clamping groove 42 is opened on the outer side of the protrusion 41, and the protrusion 52 is fixed to the clamping groove 42. Connection; the outer sheath 4 is made of insulating material, the middle sheath 3 is made of flame retardant material, the inner sheath 2 is made of halogen-free low-smoke cross-linked polyolefin material, and the reinforcing rib 31 is made of nylon; through the setting of the reinforcing rib 31 structure, the multiple groups of nylon structures therein can play an anti-torsion effect and improve the structural strength; the middle sheath 3 is made of flame retardant material, the inner sheath 2 is made of halogen-free low-smoke cross-linked polyolefin material, and the reinforcing rib 31 is made of nylon, which meets the needs of on-site installation and construction and improves the use effect.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A halogen-free, low-smoke, cross-linked polyolefin insulated, nylon sheathed flame-retardant electric wire, comprising a copper conductor (1), characterized in that: An inner sheath (2) is arranged on the outer side of the copper conductor (1), an inner groove (21) is provided in the middle of the inner side of the inner sheath (2), a sleeve (22) is bonded to the outer side of the inner sheath (2), an outer groove (23) is provided on the outer side of the sleeve (22), a middle sheath (3) is bonded and fixed to the outer side of the sleeve (22), a threaded groove is provided on the outer side of the middle sheath (3), and a reinforcing rib (31) is fixed in the threaded groove, an outer sheath (4) is bonded and fixed to the outer side of the middle sheath (3), a convex block (41) is provided on the outer side of the outer sheath (4), and an anti-wear tube (5) is fixed to the outer side of the outer sheath (4).

2. The halogen-free, low-smoke, cross-linked polyolefin insulated, nylon sheathed flame-retardant electric wire according to claim 1, characterized in that: A protrusion (11) is fixed on the outer side of the copper wire (1), and a groove structure having a size matching that of the protrusion (11) is provided on the outer side of the inner groove (21).

3. The halogen-free, low-smoke, cross-linked polyolefin insulated, nylon sheathed flame-retardant electric wire according to claim 1, characterized in that: A clamping block (32) is fixed on the inner side of the middle cover (3), and the clamping block (32) is fixedly connected to the outer groove (23).

4. The halogen-free, low-smoke, cross-linked polyolefin insulated, nylon sheathed flame-retardant electric wire according to claim 1, characterized in that: The reinforcing ribs (31) are arranged in at least five groups at equal intervals on the outer side of the middle cover (3).

5. The halogen-free, low-smoke, cross-linked polyolefin insulated, nylon sheathed flame-retardant electric wire according to claim 1, characterized in that: The inner side of the anti-wear tube (5) is provided with a plurality of groups of positioning grooves (51) at equal intervals, and a protrusion (52) is fixed in each group of the positioning grooves (51). A clamping groove (42) is provided on the outer side of the protrusion (41), and the protrusion (52) is fixedly connected to the clamping groove (42).

6. The halogen-free, low-smoke, cross-linked polyolefin insulated, nylon sheathed flame-retardant electric wire according to claim 1, characterized in that: The outer sheath (4) is made of insulating material, the middle sheath (3) is made of flame retardant material, the inner sheath (2) is made of halogen-free low-smoke cross-linked polyolefin material, and the reinforcing rib (31) is made of nylon.

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