Wear-resistant halogen-free flame-retardant silicone rubber wire

Abstract

The utility model discloses a wear-resistant halogen-free flame-retardant silicone rubber wire, and relates to the technical field of wires. The cable comprises a plurality of cable cores and an inner protection core, a plurality of embedding grooves are annularly and uniformly arranged on the circumferential side surface of the inner protection core at intervals, a spacing bar is formed between every two adjacent embedding grooves, each embedding groove is composed of a cable groove section with an arc-shaped cross section and an imbedding section with a rectangular cross section, and guide slope edges are arranged on two sides of each spacing bar and far away from the cable groove sections. The wire cores are in interference fit with the imbedding section, the plurality of wire cores are arranged in the plurality of embedding grooves at intervals, and the outer sides of the spacing bars exceed the wire cores and form wear-resistant edges. According to the utility model, by designing the inner protection core, the wear-resistant edge exceeding the core wires can be formed between the two adjacent core wires, if the wear occurs, the wear-resistant edge firstly bears the wear force and can protect the core wires, and the strength and the wear-resistant capability of the inner protection core are relatively strong, so that the wear-resistant capability of the wire can be greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric wires, in particular to a wear-resistant halogen-free flame-retardant silicone rubber electric wire. Background Art

[0002] Halogen-free flame-retardant silicone rubber has high flame retardancy and low smoke combustion properties, so it can be used in electrical wires. However, there may be problems with insufficient wear resistance and insulation capacity. If the wire sheath is damaged during installation and pipe threading, it will affect the performance of the wire and may even make it unusable. Damage to the wire sheath may also cause short circuit problems.

[0003] Therefore, designing highly wear-resistant and highly safe electric wires is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The utility model aims to provide a wear-resistant halogen-free flame-retardant silicone rubber wire. By designing an inner protective core, a wear-resistant edge extending beyond the core wires can be formed between two adjacent core wires. If wear occurs, the wear-resistant edge bears the brunt of the wear force and can protect the core wires. Similarly, the inner protective core has high strength and wear resistance, and can greatly improve the wear resistance of the wire.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a wear-resistant halogen-free flame-retardant silicone rubber wire, comprising a plurality of wire cores and an inner protective core;

[0007] The inner protective core is provided with a plurality of embedding grooves at even intervals in an annular shape on the peripheral side surface, and a spacing strip is formed between two adjacent embedding grooves;

[0008] The embedding groove is composed of a wire groove section with an arc-shaped cross section and an insertion section with a rectangular cross section, and guide slope edges are provided on both sides of the spacer bar and away from the wire groove section;

[0009] The wire core is interference fit with the insertion section, and a plurality of the wire cores are respectively arranged in a plurality of embedding grooves with gaps, and the outer side of the spacer bar exceeds the wire core and forms a wear-resistant edge;

[0010] A halogen-free flame-retardant silicone rubber layer is arranged on the outside of the inner protective core, and a part of the halogen-free flame-retardant silicone rubber layer is formed in the insertion sections of a plurality of embedding grooves.

[0011] Furthermore, the inner protective core is a core material of polyvinyl chloride, and a metal wire is provided at the axis of the inner protective core.

[0012] Furthermore, an insulating layer is provided outside the wire core.

[0013] Furthermore, the inner diameter of the wire slot section is consistent with the outer diameter of the insulating layer, and the distance between the two guide slope edges in the embedded slot is smaller than the outer diameter of the insulating layer.

[0014] Furthermore, the outer surface of the halogen-free flame-retardant silicone rubber layer is provided with a wear-resistant coating.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model can form a wear-resistant edge that exceeds the core wires between two adjacent core wires by designing the inner protective core. If wear occurs, the wear-resistant edge will bear the brunt of the wear force and protect the core wires. Similarly, the inner protective core has strong strength and wear resistance, which can greatly improve the wear resistance of the wires.

[0017] 2. The embedded groove designed in the utility model can be used for the installation and positioning of the core wire and can be used for subsequent protection. At the same time, through the design of the guide slope edge, the core wire can be embedded and installed in the embedded groove, ensuring the stability between all core wires and the inner protective core, facilitating the subsequent extrusion molding of the halogen-free flame-retardant silicone rubber layer, and ensuring its molding effect.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic structural diagram of a wear-resistant halogen-free flame-retardant silicone rubber wire of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the end of the inner protective core of the utility model;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1-wire core, 2-inner protective core, 3-halogen-free flame-retardant silicone rubber layer, 101-insulating layer, 201-embedded groove, 202-spacer, 203-wire groove section, 204-inserted section, 205-guide slope edge, 206-metal wire, 301-wear-resistant coating. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-2 As shown, the utility model is a wear-resistant halogen-free flame-retardant silicone rubber wire, comprising a plurality of wire cores 1 and an inner protective core 2;

[0026] The inner protective core is provided with a plurality of evenly spaced embedding grooves 201 in an annular shape on the side surface of the inner protective core 2, and a spacing bar 202 is formed between two adjacent embedding grooves 201;

[0027] The embedded groove 201 is composed of a wire groove section 203 with an arc-shaped cross section and an insertion section 204 with a rectangular cross section. Guide slope edges 205 are provided on both sides of the spacer bar 202 and away from the wire groove section 203.

[0028] The wire core 1 is interference fit with the insertion section 204, and a plurality of wire cores 1 are respectively arranged in a plurality of embedding grooves 201 with gaps, and the outer side of the spacer strip 202 exceeds the wire core 1 and forms a wear-resistant edge;

[0029] A halogen-free flame-retardant silicone rubber layer 3 is disposed on the outside of the inner protective core 2 , and a portion of the halogen-free flame-retardant silicone rubber layer 3 is formed in the insertion sections 204 of a plurality of embedding grooves 201 .

[0030] Among them Figure 1-2 As shown, the inner protective core 2 is made of polyvinyl chloride, and a metal wire 206 is provided at the axis of the inner protective core 2 .

[0031] Among them Figure 1 As shown, an insulating layer 101 is disposed outside the wire core 1 .

[0032] The inner diameter of the wire slot section 203 is consistent with the outer diameter of the insulating layer 101 , and the distance between the two guide slope edges 205 embedded in the slot 201 is smaller than the outer diameter of the insulating layer 101 .

[0033] Among them Figure 1 As shown, the outer surface of the halogen-free flame-retardant silicone rubber layer 3 is provided with a wear-resistant coating 301 .

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wear-resistant halogen-free flame-retardant silicone rubber wire, comprising a plurality of wire cores (1), characterized in that: Also includes an inner protective core (2); The inner protective core (2) is provided with a plurality of embedding grooves (201) in an annular shape and at even intervals on the circumferential side surface, and a spacing strip (202) is formed between two adjacent embedding grooves (201); The embedding groove (201) is composed of a wire groove section (203) with an arc-shaped cross section and an insertion section (204) with a rectangular cross section, and guide slope edges (205) are provided on both sides of the spacer bar (202) and at a position away from the wire groove section (203); The wire core (1) is interference-fitted with the insertion section (204); a plurality of the wire cores (1) are respectively arranged in a plurality of embedding grooves (201) with gaps; and the outer side of the spacer strip (202) exceeds the wire core (1) and forms a wear-resistant edge; A halogen-free flame-retardant silicone rubber layer (3) is provided on the outside of the inner protective core (2), and a portion of the halogen-free flame-retardant silicone rubber layer (3) is molded in the insertion sections (204) of a plurality of embedding grooves (201).

2. The wear-resistant halogen-free flame-retardant silicone rubber wire according to claim 1, characterized in that: The inner protective core (2) is a core material of polyvinyl chloride, and a metal wire (206) is provided at the axis of the inner protective core (2).

3. The wear-resistant halogen-free flame-retardant silicone rubber wire according to claim 1, characterized in that: An insulating layer (101) is provided outside the wire core (1).

4. The wear-resistant halogen-free flame-retardant silicone rubber wire according to claim 2, characterized in that: The inner diameter of the wire slot section (203) is consistent with the outer diameter of the insulating layer (101), and the distance between the two guide slope edges (205) in the embedded slot (201) is smaller than the outer diameter of the insulating layer (101).

5. The wear-resistant halogen-free flame-retardant silicone rubber wire according to claim 1, characterized in that: The outer surface of the halogen-free flame-retardant silicone rubber layer (3) is provided with a wear-resistant coating (301).

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