CN209525956U - A kind of network cable - Google Patents

Abstract

The utility model relates to a kind of network cables; including center core layer and the protective layer being orderly arranged outside each along center core layer, the first polytetrafluoroethylene ethylene layer, the second polytetrafluoroethylene ethylene layer, shielded layer and external sheath layer; space in the center core layer is provided with an isolation cross; the end of four spacer bars of the isolation cross is split into two curved rods; two curved rods form an arc groove, accommodate an elastic hollow tube body in each arc groove.The setting that the utility model passes through isolation cross and elastic hollow tube body; it can the impact of external mechanical power that is subject to of buffer network cable; the structural stability and functional stabilization of internal core are protected, while can avoid phenomena such as generation cross-talk, signal interference, phase mutual friction lead to equipment premature aging between a plurality of core.

Description

a network cable

technical field

The utility model relates to the technical field of network communication, in particular to a network cable.

Background technique

The network has become one of the essential contents of people's daily home, office, entertainment and social interaction. The network cable is the basic unit that connects multiple network devices, and its performance is directly related to the transmission of network signals. However, the current Most of the network cables have the following deficiencies:

1. Network cables are usually composed of multiple wires. The existing network cables do not scientifically plan and classify the wires. Different types of wires are wound and extruded in the same cable, which is easy to cause signal interference between each other. Interference, and at the same time, the friction and extrusion between multiple wires will also increase the safety hazard of the equipment.

2. The anti-interference performance and shielding performance of network cables are the two most important performances. However, the anti-interference structure or shielding structure of many existing network cables is relatively simple, without considering the classification of interference signals, naturally there is no Consider the division of labor when shielding interfering signals.

3. Most of the network cables are installed outdoors and will be installed together with other power cables. The network cables will inevitably need to be wound during transportation and assembly, and will inevitably be affected by external forces, which will affect the network cables. The quality and service life of the cable, and the layout of the network cable is very labor-intensive and inconvenient to troubleshoot. Therefore, the most cost-effective way is to make a network with high quality, high wear resistance and excellent anti-interference performance. cables.

To sum up, the existing network cables need to be improved urgently.

Utility model content

A network cable, comprising: a central line core layer and a protective layer sequentially arranged along the outside of the central line core layer, a first polytetrafluoroethylene layer, a second polytetrafluoroethylene layer, a shielding layer and an outer sheath layer, in,

The space in the core layer of the center line is provided with an isolation cross, and the ends of the four isolation bars of the isolation cross are split into two arc bars, and the two arc bars form an arc groove, each arc An elastic hollow tube is placed in the groove; the isolation cross isolates four spaces for accommodating the center line core in the center line core layer, and a set of center line cores is arranged in each space, and each set of center line cores includes three strands core and insulation covering the three-strand core.

Wherein, the material of the elastic hollow tube and the isolation cross is selected from elastic rubber, and the end of the arc-shaped rod of the isolation cross is separated from the inner wall of the centerline core by a predetermined distance.

Wherein, the outer wall surface of the centerline core is separated from the inner wall of the centerline core layer by a predetermined distance, and the outer wall surface of the elastic hollow tube body is tangent to the inner wall surface of the centerline core layer.

Wherein, a plurality of signal receiving parts are uniformly arranged on the outer side of the protective layer, and the cross-sectional shape of the signal receiving parts is trapezoidal, so as to ensure that the network cable can receive more electromagnetic wave radiation.

Wherein, the outer sheath layer includes a first outer sheath layer and a second outer sheath layer, the material of the first outer sheath layer is selected from polyethylene insulating material, and the material of the second outer sheath layer selected from silicone rubber.

Wherein, the outer peripheral wall of the second outer sheath layer is uniformly provided with a plurality of grooves.

Wherein, in the space isolated by the isolation cross, the center line core of each space is filled with water-blocking yarn.

The network cable provided by the utility model can buffer the impact of the external mechanical force on the network cable by setting the isolation cross and the elastic hollow tube body, protect the structural stability and functional stability of the internal core, and at the same time avoid Crosstalk, signal interference, and mutual friction between multiple wire cores lead to premature aging of the equipment.

Description of drawings

Figure 1: Schematic cross-sectional structure diagram of the network cable provided by the utility model.

Explanation of reference signs

10-center line core layer, 11-isolating cross, 111-arc rod, 112-arc groove, 12-core, 13-insulation layer, 20-protection layer, 21-signal receiving part, 30-first PTFE layer, 40-second PTFE layer, 50-shielding layer, 60-outer sheath layer, 61-first outer sheath layer, 62-second outer sheath layer, 63-groove , 70-elastic hollow tube body.

Detailed ways

In order to have a further understanding of the technical solution and beneficial effects of the utility model, the technical solution of the utility model and its beneficial effects will be described in detail below in conjunction with the accompanying drawings.

Fig. 1 is a schematic cross-sectional structure diagram of the network cable provided by the utility model, as shown in Fig. 1, the network cable provided by the utility model, the center line core layer 10 and the protective layer arranged in sequence along the outside of the center line core layer 10 20 . The first polytetrafluoroethylene layer 30 , the second polytetrafluoroethylene layer 40 , the shielding layer 50 and the outer sheath layer 60 .

In order to avoid crosstalk, signal interference, and mutual friction between multiple wire cores to cause premature aging of equipment, the utility model is provided with an isolation cross 11 in the center line core layer 10, and the isolation cross 11 separates the center line core layer 10. Four spaces for accommodating the central wire cores are isolated inside, and a group of central wire cores is arranged in each space, and each group of central wire cores includes three strands of wire cores 12 and an insulating layer 13 covering the three strands of wire cores 12 . The material of the isolation cross 11 can be selected from the foam material. On the one hand, in order to reduce the quality of the entire cable, on the other hand, the gap in the foam material can further improve the anti-interference ability of the isolation cross 11. In addition, the material of the isolation cross 11 must be able to Elastically deformable.

As shown in Figure 1, the ends of the four spacer bars of the spacer cross 11 are all split into two arc-shaped bars 111, and the two arc-shaped bars 111 form an arc-shaped groove 112, and each arc-shaped groove 112 contains An elastic hollow tube body 70, so that when the network cable is squeezed, the elastic hollow tube body 70 can produce a certain elastic deformation, buffer the impact of the external mechanical force on the network cable, and protect the structure of the internal core stability and functional stability. It is not difficult to understand that the material of the elastic hollow tube body 70 is also preferably selected from foam materials and materials that can be elastically deformed. On the one hand, for the consideration of elastic deformation, and on the other hand, for the consideration of reducing the quality of the entire cable, The material of the elastic hollow tube 70 and the material of the isolation cross 11 can be the same or different. At the same time, the elastic deformation performance of the elastic hollow tube 70 is greater than that of the isolation cross 11, because the splitting of the arc rod at the end of the isolation cross 11 itself The shape determines that the isolation cross 11 can produce greater elastic deformation than the elastic hollow tube 70 when the material is the same.

Please continue to refer to Figure 1. In order to protect the central core and prevent the central core from receiving mechanical pressure when the network cable is squeezed, in the present utility model, the outer wall surface of the central core and the central core layer The inner walls of 10 are separated by a predetermined distance; meanwhile, in order to exert the elastic deformation advantages of the isolation cross 11 and the elastic hollow tube body 70, in the utility model, the end of the arc-shaped rod 111 of the isolation cross 11 is connected to the centerline core layer 10 The inner walls of the elastic hollow tube body 70 are spaced apart by a predetermined distance, and the outer wall surface of the elastic hollow tube body 70 is tangent to the inner wall surface of the centerline core layer 10 . In this way, when the network cable is squeezed by the outside world, the elastic hollow tube body 70 is first deformed, and the arc-shaped rod 111 of the isolation cross 11 can be protected from mechanical extrusion, and the structure is more stable.

In the present utility model, since there is a gap between the outer wall of the center line core and the inner wall of the center line core layer 10, in order to avoid the irregular displacement of the line core in the center line core layer 10, the utility model is isolated by the isolation cross 10. The center core in the space outside is filled with water-blocking yarn to stabilize the position of the center core. At the same time, the water-blocking yarn makes the network cable have the advantages of light weight, reliable performance and low cost.

In the utility model, a plurality of signal receiving parts 21 are uniformly arranged on the outer side of the protective layer 20, and the cross-sectional shape of the signal receiving parts 21 is trapezoidal to ensure that the network cable can receive more electromagnetic wave radiation and achieve better protective effect.

In the present utility model, the density of the first polytetrafluoroethylene layer 30 is greater than the density of the second polytetrafluoroethylene layer 40, or the thickness of the first polytetrafluoroethylene layer 30 is greater than the thickness of the second polytetrafluoroethylene layer 40 , so as to form a protection gradient on the axial section of the network cable.

In the present invention, the material of the shielding layer 50 is selected from any one of copper mesh, metal fiber and the like.

In the present utility model, the outer sheath layer 60 includes a first outer sheath layer 61 and a second outer sheath layer 62, the material of the first outer sheath layer 61 is selected from polyethylene insulating material, and the second outer sheath layer The material of the second outer sheath layer 62 is selected from silicone rubber, thereby improving the stability of the entire network cable, ensuring that the outer sheath layer does not fall off or disconnected in a fire environment, and ensures the normal operation of the security system.

In addition, in the utility model, the outer peripheral wall of the second outer sheath layer 62 is evenly provided with a plurality of grooves 63, the grooves 63 can increase the surface area of the second outer sheath 62, increase its heat dissipation performance, and improve the Its working stability in high temperature environment.

The beneficial effects of the utility model are as follows:

1. Through the setting of the isolated cross and the elastic hollow tube body, it can buffer the impact of the external mechanical force on the network cable, protect the structural stability and functional stability of the internal core, and at the same time avoid the occurrence of tension between multiple cores. Crosstalk, signal interference, and mutual friction lead to premature aging of equipment.

2. Through the setting of water-blocking yarn, the network cable has the advantages of light weight, reliable performance and low cost.

3. Through the setting of the first outer sheath layer, the second outer sheath layer and the groove on the second outer sheath layer, the stability of the entire network cable is improved to ensure that the outer sheath layer does not fall off in a fire environment , Uninterrupted line, to ensure the normal operation of the security system, while improving the heat dissipation performance of the network cable, and improving the stability of its work in high temperature environments.

Although the utility model has been described using the above-mentioned preferred embodiments, it is not intended to limit the scope of protection of the utility model, and any person skilled in the art can carry out the above-mentioned embodiment without departing from the spirit and scope of the utility model. Various changes and modifications still belong to the protection scope of the utility model, so the protection scope of the utility model is defined by the claims as the criterion.

Claims (7)

1. a kind of network cable, characterized by comprising: center core layer and the guarantor being orderly arranged outside each along center core layer Sheath, the first polytetrafluoroethylene ethylene layer, the second polytetrafluoroethylene ethylene layer, shielded layer and external sheath layer, wherein

Space in the center core layer is provided with an isolation cross, the end of four spacer bars of the isolation cross Two curved rods are split into, two curved rods form an arc groove, accommodate an elastic hollow pipe in each arc groove Body；Isolation cross will isolate the space of four accommodating center cores in the core layer of center, in each space in one group of setting Heart core, every group of center core include compenzine core and the insulating layer for coating compenzine core.

2. network cable as described in claim 1, it is characterised in that: the elastic hollow tube body and the material that cross is isolated It is selected from elastic rubber, the end of curved rod of the isolation cross and the inner wall of center core layer are spaced a predetermined distance.

3. network cable as described in claim 1, it is characterised in that: the wall surface and center core in the outside of the center core The inner wall of layer is spaced a predetermined distance, and the outer side surface of the elastic hollow tube body and the inner wall of center core layer are tangent.

4. network cable as described in claim 1, it is characterised in that: be evenly arranged with multiple signals on the outside of the protective layer Receiving unit, the cross-sectional shape of the signal receiving part be it is trapezoidal, to guarantee that network cable can receive more electromagenetic wave radiations.

5. network cable as described in claim 1, it is characterised in that: the external sheath layer includes the first external sheath layer and second The material of external sheath layer, first external sheath layer is selected from polyethylene insulation material, and the material of second external sheath layer is selected from Silicon rubber.

6. network cable as claimed in claim 5, it is characterised in that: the periphery wall of second external sheath layer is evenly arranged with Multiple grooves.

7. network cable as described in claim 1, it is characterised in that: in the space that the isolation cross is isolated, often Water blocking yarn is filled with outside the center core in a space.