Flame-retardant network cable

Abstract

The utility model belongs to the technical field of network cables, and particularly relates to a flame-retardant network cable, which comprises an outer protection body, an outer flame-retardant coating, an inner support body, a wire harness body and an expansion flame-retardant inner layer, the flame-retardant coating is connected to the outer surface of the outer protection body; a mounting inner cavity is formed in the outer protection body; the inner supporting body is connected to the interior of the mounting inner cavity; a mounting groove is formed in the inner supporting body; the wire harness body is connected to the interior of the mounting groove; and the intumescent flame-retardant inner layer is connected to the inner wall of the outer protection body and between the wire harness body and the inner support body. According to the utility model, the external dual flame-retardant protection effect of the wire harness body can be realized; therefore, the flame retardant property of the network cable is improved, and the use safety and stability are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of network cable technology, and in particular relates to a flame-retardant network cable. Background Technology

[0002] A local area network (LAN) generally consists of three main parts: computer equipment, network connection equipment, and network transmission media. LAN cables are used to connect to the LAN. The most common types of network cables used in LANs are twisted-pair cables, coaxial cables, and fiber optic cables. Twisted-pair cables, in particular, are data transmission cables composed of many pairs of wires.

[0003] In the existing technology, the fire resistance and flame retardancy of the connection cables used in local area networks are poor, which prevents the equipment from performing its intended functions and thus results in poor actual performance. Utility Model Content

[0004] The purpose of this utility model is to provide a flame-retardant wire that addresses the shortcomings of existing technologies and solves the technical problem of poor fire resistance and flame retardant performance of existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flame-retardant cable includes an outer protective body, an outer flame-retardant coating, an inner support body, a wire harness, and an intumescent flame-retardant inner layer; the flame-retardant coating is connected to the outer surface of the outer protective body; the outer protective body has an installation cavity; the inner support body is connected to the interior of the installation cavity; the inner support body has an installation groove; the wire harness is connected to the interior of the installation groove; the intumescent flame-retardant inner layer is connected to the inner wall of the outer protective body and between the wire harness and the inner support body.

[0007] Preferably, the outer protective body includes a shielding layer, a heat insulation layer, and a support layer stacked sequentially from the inside to the outside; and the outer flame-retardant coating is connected to the outer surface of the support layer; the inner support body abuts against the inner wall of the shielding layer; and the wire harness abuts against the inner wall of the shielding layer.

[0008] Preferably, the heat insulation layer is made of fiberglass cloth or asbestos fiber material;

[0009] And / or, the shielding layer is made of tin-plated round copper wire braided material or aluminum foil Mylar material;

[0010] And / or, the support layer is made of polyvinyl chloride or thermoplastic polyurethane elastic material.

[0011] Preferably, the intumescent flame-retardant inner layer is made of epoxy resin or calcium carbonate.

[0012] Preferably, the external flame-retardant coating is a water-based polyurethane flame-retardant coating or a silicate flame-retardant coating.

[0013] Preferably, the inner support body is provided with a buffer cavity; and the buffer cavity is connected to the mounting groove.

[0014] Preferably, the inner support body has at least one through hole; the two ends of the through hole are respectively connected to the buffer cavity and the mounting groove.

[0015] Preferably, the through hole is disposed between the wire harness body and the outer protective body.

[0016] Preferably, the inner support body includes a support base block, a first limiting arc block, a second limiting arc block, a third limiting arc block, and a fourth limiting arc block; one end of the first limiting arc block is connected to one side surface of the support base block; the second limiting arc block is arranged side by side with the first limiting arc block, and one end of the second limiting arc block is connected to one side surface of the support base block; and a mounting groove is formed between one side surface of the support base block, the first limiting arc block, and the second limiting arc block; one end of the third limiting arc block is connected to the other side surface of the support base block; the fourth limiting arc block is arranged side by side with the third limiting arc block, and one end of the fourth limiting arc block is connected to the other side surface of the support base block; and another mounting groove is formed between the other side surface of the support base block, the third limiting arc block, and the fourth limiting arc block.

[0017] Preferably, the inner support further includes a first side arc block and a second side arc block; the two ends of the first side arc block are respectively connected to the other end of the first limiting arc block and the other end of the third limiting arc block; the two ends of the second side arc block are respectively connected to the other end of the second limiting arc block and the other end of the fourth limiting arc block; and a buffer cavity is formed between the first side arc block, the first limiting arc block and the third limiting arc block; another buffer cavity is formed between the second side arc block, the second limiting arc block and the fourth limiting arc block.

[0018] The beneficial effects of this utility model are that this technical solution achieves dual external protection for the wire harness through the outermost flame-retardant coating and the inner expansion flame-retardant layer, thereby further improving the flame-retardant performance of the network cable and ensuring the safety and stability of use, preventing the equipment from failing to perform its intended functions. In addition, the support of the inner support body and the limiting protection of the outer protective body ensure the assembly stability of the wire harness, thereby ensuring the safety and stability of use and the stability of signal transmission. Attached Figure Description

[0019] The following will refer to the appendix. Figures 1-4 The features, advantages and technical effects of exemplary embodiments of this utility model are described.

[0020] Figure 1 This is a cross-sectional view of a flame-retardant mesh cable according to an embodiment of the present invention;

[0021] Figure 2 A cross-sectional view of the outer protective body and outer flame-retardant coating of a flame-retardant wire mesh according to an embodiment of the present invention;

[0022] Figure 3 A cross-sectional view of the inner support body and wire harness of a flame-retardant wire according to an embodiment of the present invention;

[0023] Figure 4 A cross-sectional view of the inner support of a flame-retardant wire mesh according to an embodiment of this utility model.

[0024] In the diagram: 1-Outer protective body; 11-Support layer; 12-Heat insulation layer; 13-Shielding layer; 2-Outer flame-retardant coating; 3-Inner support body; 31-Mounting groove; 32-Buffer cavity; 33-Through hole; 301-Support base block; 302-First limiting arc block; 303-Second limiting arc block; 305-Third limiting arc block; 306-Fourth limiting arc block; 307-First side arc block; 308-Second side arc block; 4-Wire harness; 5-Intumescent flame-retardant inner layer. Detailed Implementation

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0026] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or multiple situations existing alone. In addition, the character " / " in this document generally indicates that the related objects before and after are in an "or" relationship.

[0029] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0030] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in further detail, but this is not intended to limit the scope of the present invention.

[0031] like Figure 1 As shown, in one embodiment of this utility model, the flame-retardant network cable includes an outer protective body 1, an outer flame-retardant coating 2, an inner support body 3, a wire harness 4, and an intumescent flame-retardant inner layer 5. The flame-retardant coating 2 is connected to the outer surface of the outer protective body 1. The outer protective body 1 has an inner mounting cavity. The inner support body 3 is connected to the interior of the inner mounting cavity. The inner support body 3 has an inner mounting groove 31. The wire harness 4 is connected to the interior of the mounting groove 31. The intumescent flame-retardant inner layer 5 is connected to the inner wall of the outer protective body 1, between the wire harness 4 and the inner support body 3. The wire harness 4 is made of high-quality annealed and tin-plated copper wire, and the outer surface of the copper wire is covered with rubber material. Further, the wire harness 4 can be a short-distance network cable of 0.5m, 1m, 5m, 10m, 20m, etc.

[0032] The technical solution of this utility model achieves dual external protection for the wire harness by using the outermost flame-retardant coating and the inner expansion flame-retardant layer, thereby further improving the flame-retardant performance of the network cable and ensuring the safety and stability of use, preventing the equipment from failing to perform its intended functions. In addition, the inner support body supports the wire harness and the outer protective body provides limiting protection, thereby achieving the assembly stability of the wire harness, ensuring the safety and stability of use, and ensuring the stability of signal transmission.

[0033] Specifically, in some embodiments, the outer flame-retardant coating 2 is selected from water-based polyurethane flame-retardant coatings or silicate flame-retardant coatings. This structure achieves the first line of flame-retardant protection for the outermost layer of the flame-retardant mesh cable through water-based polyurethane flame-retardant coatings or silicate flame-retardant coatings, thereby improving the flame-retardant performance of the flame-retardant mesh cable and extending its service life.

[0034] Specifically, in some implementations, such as Figure 1 and 2 As shown, the outer protective body 1 includes a shielding layer 13, a heat insulation layer 12, and a support layer 11 stacked sequentially from the inside out; an outer flame-retardant coating 2 is connected to the outer surface of the support layer 11; an inner support 3 abuts against the inner wall of the shielding layer 13; and the wire harness 4 abuts against the inner wall of the shielding layer 13. In some embodiments, the heat insulation layer 12 is made of fiberglass cloth or asbestos fiber; the shielding layer 13 is made of tin-plated round copper wire braid or aluminum foil Mylar; and the support layer 11 is made of polyvinyl chloride or thermoplastic polyurethane elastic material. This structure uses tin-plated round copper wire braid or aluminum foil Mylar to prevent signal transmission loss and interference of the wire harness 4; uses fiberglass cloth or asbestos fiber to prevent signal transmission interference caused by excessively high external temperatures; and uses polyvinyl chloride or thermoplastic polyurethane elastic material to ensure the stability of the wire harness 4 in use, thereby improving the transmission stability, stability, and safety of the network cable.

[0035] Specifically, in some embodiments, the intumescent flame-retardant inner layer 5 is made of epoxy resin or calcium carbonate. This structure allows the calcium carbonate material to release carbon dioxide when heated, diluting the oxygen concentration and preventing combustion; simultaneously, the carbon dioxide gas also contributes to volume expansion, and the calcium carbonate promotes the formation of a char layer on the outer surface of the wire harness 4.

[0036] Specifically, in some implementations, such as Figure 1 and 3 As shown, the inner support 3 is provided with a buffer cavity 32; the number of buffer cavities 32 corresponds to the number of mounting slots 31; and the buffer cavities 32 are connected to the mounting slots 31. Wherein, as... Figure 3 As shown, the inner support 3 has at least one through hole 33; the two ends of the through hole 33 are connected to the buffer cavity 32 and the mounting groove 31, respectively. That is, when there are two wire harnesses 4, there are two mounting grooves 31 and two buffer cavities 32; thus, the through hole 33 guides the gas during the expansion of the flame-retardant inner layer 5 and enables the inner support 3 to deform in an orderly manner within the mounting groove 31, thereby protecting the wire harnesses 4 and preventing them from suffering excessive damage.

[0037] Specifically, in some implementations, such as Figure 1 ,3 As shown in Figure 4, the inner support 3 is made of polyethylene, which can be rolled up and has certain tensile strength and elongation. The inner support 3 includes a support base 301, a first limiting arc block 302, a second limiting arc block 303, a third limiting arc block 305, and a fourth limiting arc block 306. One end of the first limiting arc block 302 is connected to one side surface of the support base 301. The second limiting arc block 303 is arranged side-by-side with the first limiting arc block 302, and one end of the second limiting arc block 303 is connected to one side surface of the support base 301. The inner support 3 includes a support base block 301, a first limiting arc block 302, a second limiting arc block 303, a third limiting arc block 305, and a fourth limiting arc block 306. A mounting groove 31 is formed between the first limiting arc block 302 and the second limiting arc block 303; one end of the third limiting arc block 305 is connected to the other side surface of the support base block 301; the fourth limiting arc block 306 is arranged side by side with the third limiting arc block 305, and one end of the fourth limiting arc block 306 is connected to the other side surface of the support base block 301; and another mounting groove 31 is formed between the other side surface of the support base block 301, the third limiting arc block 305, and the fourth limiting arc block 306. That is to say, the support base block 301, the first limiting arc block 302, the second limiting arc block 303, the third limiting arc block 305, and the fourth limiting arc block 306 form an X-shaped structure to ensure the stability of the installation of different wire harnesses 4, thereby improving the stability of signal transmission. The number of through holes 33 is at least four, and they are respectively provided on the first limiting arc block 302, the second limiting arc block 303, the third limiting arc block 305 and the fourth limiting arc block 306; and the through holes 33 are provided between the wire harness body 4 and the outer protective body 1 so as to enable the gas generated by heating to be discharged quickly and to ensure the installation stability of the wire harness body 4.

[0038] Specifically, in some implementations, such as Figure 1 , 3 As shown in Figure 4, the inner support 3 also includes a first side arc block 307 and a second side arc block 308; the two ends of the first side arc block 307 are respectively connected to the other end of the first limiting arc block 302 and the other end of the third limiting arc block 305; the two ends of the second side arc block 308 are respectively connected to the other end of the second limiting arc block 303 and the other end of the fourth limiting arc block 306; and a buffer cavity 32 is formed between the first side arc block 307, the first limiting arc block 302 and the third limiting arc block 305 (and the support base block 301); another buffer cavity 32 is formed between the second side arc block 308, the second limiting arc block 303 and the fourth limiting arc block 306 (and the support base block 301); so as to achieve the stability of the overall structure of the inner support 3 and avoid phenomena such as easy collapse.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0040] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A flame-retardant network cable, characterized in that: It includes an outer protective body, an outer flame-retardant coating, an inner support body, a wire harness, and an intumescent flame-retardant inner layer; the flame-retardant coating is connected to the outer surface of the outer protective body; the outer protective body has an inner mounting cavity; the inner support body is connected to the interior of the inner mounting cavity; the inner support body has an mounting groove; the wire harness is connected to the interior of the mounting groove; the intumescent flame-retardant inner layer is connected to the inner wall of the outer protective body and between the wire harness and the inner support body.

2. The flame-retardant wire according to claim 1, characterized in that: The outer protective body includes a shielding layer, a heat insulation layer, and a support layer stacked sequentially from the inside to the outside; and the outer flame-retardant coating is connected to the outer surface of the support layer; the inner support body abuts against the inner wall of the shielding layer; and the wire harness abuts against the inner wall of the shielding layer.

3. The flame-retardant wire according to claim 2, characterized in that: The heat insulation layer is made of fiberglass cloth or asbestos fiber material. And / or, the shielding layer is made of tin-plated round copper wire braided material or aluminum foil Mylar material; And / or, the support layer is made of polyvinyl chloride or thermoplastic polyurethane elastic material.

4. The flame-retardant wire according to claim 1, characterized in that: The intumescent flame-retardant inner layer is made of epoxy resin or calcium carbonate.

5. The flame-retardant wire according to claim 1, characterized in that: The external flame-retardant coating is selected from water-based polyurethane flame-retardant coatings or silicate flame-retardant coatings.

6. The flame-retardant wire according to claim 1, characterized in that: The inner support body is provided with a buffer cavity; and the buffer cavity is connected to the mounting groove.

7. The flame-retardant wire according to claim 6, characterized in that: The inner support body has at least one through hole; the two ends of the through hole are respectively connected to the buffer cavity and the mounting groove.

8. The flame-retardant wire according to claim 7, characterized in that: The through hole is disposed between the wire harness and the outer protective body.

9. The flame-retardant wire according to claim 6, 7, or 8, characterized in that: The inner support body includes a support base block, a first limiting arc block, a second limiting arc block, a third limiting arc block, and a fourth limiting arc block; one end of the first limiting arc block is connected to one side surface of the support base block; The second limiting arc block is arranged side by side with the first limiting arc block, and one end of the second limiting arc block is connected to one side surface of the support base block; and a mounting groove is formed between one side surface of the support base block, the first limiting arc block, and the second limiting arc block; one end of the third limiting arc block is connected to the other side surface of the support base block; the fourth limiting arc block is arranged side by side with the third limiting arc block, and one end of the fourth limiting arc block is connected to the other side surface of the support base block; and another mounting groove is formed between the other side surface of the support base block, the third limiting arc block, and the fourth limiting arc block.

10. The flame-retardant wire according to claim 9, characterized in that: The inner support body further includes a first side arc block and a second side arc block; the two ends of the first side arc block are respectively connected to the other end of the first limiting arc block and the other end of the third limiting arc block; the two ends of the second side arc block are respectively connected to the other end of the second limiting arc block and the other end of the fourth limiting arc block; and a buffer cavity is formed between the first side arc block, the first limiting arc block and the third limiting arc block; another buffer cavity is formed between the second side arc block, the second limiting arc block and the fourth limiting arc block.

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