Folding-resistant seven-type network cable

Abstract

The utility model discloses a folding-resistant category seven network cable, which comprises a plurality of copper core wires, a plurality of grounding wires, a copper core wire shielding layer, a central coating layer, an aluminum foil shielding layer, a woven mesh shielding layer, an outer wire layer and a central framework, the cross section of the central framework is in a cross shape, the elastic ring is arranged on the outer side of the central coating layer, and tightening rings are arranged on the elastic ring at certain intervals. Through the arrangement of the central framework and the elastic ring, the bending resistance of the network cable can be improved, and excessive bending of the copper core wire in the bending process is reduced; and through the arrangement of the central framework, the abrasion among the plurality of copper core wires in the bending process can be reduced. The elastic ring formed by spirally winding the plastic sheet can reduce the risk that the metal elastic ring punctures the inner and outer insulating layers, and by arranging the tightening ring, the displacement of the end part of the elastic ring can be limited when the elastic ring is cut off for use, and the risk that the elastic ring punctures the inner and outer structures is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of network cables, in particular to a fold-resistant Category 7 network cable. Background Art

[0002] Category 7 network cables are high-performance network cables that are usually used to support high-speed data transmission and network connections. During use, network cables are inevitably bent, which can cause the internal copper wire to break or short-circuit. The commonly used solutions to this problem are mainly from two directions. One is to choose better materials, including copper core wires and external insulating materials, to improve their bending resistance. The other is to add anti-bending structures, such as the spring rebound layer (6) set in the announcement number CN220439283U, which can use elastic materials to pull the device back as a whole when the device is bent, thereby preventing the inner core from being in a bent state for a long time, resulting in poor signal. The elasticity of the spring can form an arc at the bend of the device, avoiding the inner core from being bent at right angles or excessively, which may cause breakage. However, the use of spring materials has the following problems: the metal spring structure is subjected to stress after bending and is prone to puncturing the inner and outer insulating layers. Although the wear-resistant layer 9 covered on the outer side of the announcement number CN220439283U can solve this problem to a certain extent, a gap may easily appear between the metal spring and the wear-resistant layer 9 after multiple deformations. The wear-resistant layer 9 may easily fall off after long-term use. In addition, when the spring is cut for use, the metal spring and the wear-resistant layer 9 need to be removed to install the crystal head, resulting in the metal spring rebound layer being free at the end, which is more likely to puncture the inner and outer insulating layers when bent. Utility Model Content

[0003] The utility model aims to provide a fold-resistant Category 7 network cable to solve the problems existing in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model provides a kind of fold-resistant Category 7 network cable including multiple copper core wires, multiple grounding wires, copper core wire shielding layer, central sheath layer, aluminum foil shielding layer, braided mesh shielding layer and outer wire layer, wherein an aluminum foil shielding layer is arranged outside the central sheath layer, a braided mesh shielding layer is arranged outside the aluminum foil shielding layer, an outer wire layer is arranged outside the braided mesh shielding layer, and also includes a central skeleton; the cross-section of the central skeleton is cross-shaped, a copper core wire shielding layer is arranged outside the two copper core wires, the grounding wire is a bare copper wire in contact with the copper core wire shielding layer, two copper core wires and the copper core wire shielding layer and a grounding wire are arranged as a group between two arms of the central skeleton; multiple copper core wires, grounding wires and a central sheath layer are arranged outside the central skeleton; the central skeleton includes a flexible skeleton and a metal axis, the flexible skeleton is made of rubber or flexible plastic, and includes four mutually perpendicular arms, the A metal axis is arranged in the center of the flexible skeleton; the folding-resistant Category 7 network cable also includes an elastic ring, which is arranged on the outside of the central layer; the elastic ring is an elastic plastic sheet spirally wound on the outside of the central layer; the folding-resistant Category 7 network cable also includes an elastic ring coating layer, which is located on the outside of the elastic ring, and an aluminum foil shielding layer is arranged on the outside of the elastic ring coating layer; binding rings are arranged at regular intervals on the elastic rings, and the binding rings are adhesive film materials tightly wound on the outside of the elastic rings; the arms of the central skeleton are provided with notches at regular intervals, and winding coils are arranged at the notches; the winding coils confine the copper core wire, the copper core wire shielding layer, and the grounding wire to the central area close to the central skeleton.

[0005] The utility model can improve the bending resistance of the network cable by setting the central skeleton and the elastic ring, reduce the excessive bending of the copper core wire during the bending process, and reduce the wear between the copper core wires during the bending process by setting the central skeleton. The elastic ring spirally wound with plastic sheets can reduce the risk of the metal elastic ring piercing the inner and outer insulation layers. The setting of the binding ring can limit the displacement of the end of the elastic ring when it is cut and used, reducing the risk of piercing the inner and outer structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the overall solution of the utility model.

[0007] Figure 2 It is a partially enlarged schematic diagram of the utility model.

[0008] Figure 3 It is a partial enlarged schematic diagram of the elastic ring area of ​​one embodiment of the utility model.

[0009] Figure 4 It is a partially enlarged schematic diagram of the central skeleton of another embodiment of the utility model. DETAILED DESCRIPTION

[0010] 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 in 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.

[0011] As attached Figure 1-2 As shown, the fold-resistant Category 7 network cable involved in the utility model includes multiple copper core wires 1, multiple grounding wires 2, a copper core wire shielding layer 3, a central sheath 4, an aluminum foil shielding layer 5, a braided mesh shielding layer 6, an outer wire layer 7, and a central skeleton 8.

[0012] The central frame 8 has a cross-shaped cross section and includes a flexible frame 80 made of rubber or flexible plastic material, including four mutually perpendicular arms 800, with a metal axis 81 disposed in the center.

[0013] Each copper core wire 1 is provided with an insulating layer, and the two copper core wires 1 are provided with a copper core wire shielding layer 3 of aluminum foil, and the grounding wire 2 is a bare copper wire in contact with the copper core wire shielding layer 3. Two copper core wires 1, the copper core wire shielding layer 3, and one grounding wire 2 are arranged as a group between the two arms of the central skeleton 8.

[0014] A central sheath 4 is arranged outside multiple copper core wires 1, a ground wire 2, and a central skeleton 8, an aluminum foil shielding layer 5 is arranged outside the central sheath 4, a braided mesh shielding layer 6 is arranged outside the aluminum foil shielding layer 5, and an outer wire layer 7 is arranged outside the braided mesh shielding layer 6, wherein the insulating layer outside the copper core wire 1, the central sheath 4, and the outer wire layer 7 are all formed by an extrusion process.

[0015] The central layer 4 is used to tightly fix the copper core wire 1, the ground wire 2, and the copper core wire shielding layer 3 to avoid relative friction between them.

[0016] As attached Figure 3 As shown, it also includes an elastic ring 9 and an elastic ring coating layer 10. The elastic ring 9 is arranged on the outside of the central quilt layer 4, the elastic ring coating layer 10 is located on the outside of the elastic ring, and the aluminum foil shielding layer 5 is arranged on the outside of the elastic ring coating layer.

[0017] The elastic ring 9 is an elastic plastic sheet spirally wound on the outside of the central layer 4. The elastic ring coating layer 10 is an extruded plastic layer to prevent the elastic ring 9 from affecting the external aluminum foil shielding layer when it is bent.

[0018] Tightening rings 11 are arranged at certain intervals on the elastic ring 9. The tightening rings 11 are made of adhesive film material tightly wrapped around the outside of the elastic ring. For example, a tightening ring 11 with a length of 5 cm is arranged every 1 meter. Its main function is to limit the displacement of the end of the elastic ring 9 by cutting it in the tightening ring area when it is cut for use, thereby reducing the risk of it puncturing the internal and external structures.

[0019] As attached Figure 4 As shown further, the flexible frame 80 of the central frame 8 has gaps 801 arranged at regular intervals, and winding coils 802 are arranged at the gaps. Figure 4 The winding coil 802 is in an unwound state. In the actual product, the winding coil 802 limits the copper core wire, the copper core wire shielding layer, and the grounding wire to the central area close to the central skeleton. In the embodiment of the present application, when the central quilt layer 4 is formed, the copper core wire, the copper core wire shielding layer, and the grounding wire are relaxed as much as possible to avoid excessively tight wires that are more easily damaged when bent. The setting of the winding coil 802 prevents the copper core wire from being displaced outside the central skeleton 8 during the forming process of the central quilt layer 4.

[0020] It should be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

Claims

1. A fold-resistant Category 7 network cable, comprising a plurality of copper core wires, a plurality of ground wires, a copper core wire shielding layer, a central quilt layer, an aluminum foil shielding layer, a braided mesh shielding layer, and an outer wire layer, wherein an aluminum foil shielding layer is arranged outside the central quilt layer, a braided mesh shielding layer is arranged outside the aluminum foil shielding layer, and an outer wire layer is arranged outside the braided mesh shielding layer, characterized in that: It also includes a central skeleton; the cross-section of the central skeleton is cross-shaped, a copper core wire shielding layer is arranged outside the two copper core wires, the grounding wire is a bare copper wire in contact with the copper core wire shielding layer, two copper core wires and the copper core wire shielding layer, and a grounding wire are arranged as a group between the two arms of the central skeleton; multiple copper core wires, grounding wires, and a central layer are arranged outside the central skeleton; the central skeleton includes a flexible skeleton and a metal axis, the flexible skeleton is made of rubber or flexible plastic material, and includes four mutually perpendicular arms, and a metal axis is arranged in the center of the flexible skeleton; the fold-resistant seven-category network cable also includes an elastic ring, the elastic ring The ring is arranged on the outside of the central layer; the elastic ring is an elastic plastic sheet spirally wound on the outside of the central layer; the fold-resistant category 7 network cable also includes an elastic ring coating layer, the elastic ring coating layer is located on the outside of the elastic ring, and the aluminum foil shielding layer is arranged on the outside of the elastic ring coating layer; the elastic ring is provided with a binding ring at a certain interval, and the binding ring is a film material with glue tightly wound on the outside of the elastic ring; the support arms of the central skeleton are provided with notches at a certain interval, and winding coils are provided at the notches; the winding coils confine the copper core wire, the copper core wire shielding layer, and the grounding wire to the central area close to the central skeleton.

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