Anti-interference network cable

Abstract

The utility model belongs to the technical field of network cable production and manufacturing, and particularly relates to an anti-interference network cable, which comprises an outer skin layer, a first shielding layer, a buffer layer and a protective layer which are sequentially arranged from outside to inside, a skeleton is arranged in the protective layer, the skeleton divides the interior of the protective layer into at least four accommodating cavities, a group of twisted-pair wire cores are arranged in the accommodating cavities, and the twisted-pair wire cores are sequentially wrapped by an insulating layer and a second shielding layer; the framework comprises four isolation parts, an arc-shaped bayonet is formed between every two adjacent isolation parts, the arc-shaped bayonet is provided with a plurality of clamping parts in contact with the second shielding layer, and the plurality of clamping parts are arranged along the surface of the arc-shaped bayonet. According to the utility model, through optimizing the network cable structure, the anti-interference capability of the network cable can be improved, thereby improving the quality of the network cable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of network cable production and manufacture, and particularly relates to an anti-interference network cable. BACKGROUND

[0002] With the progress of science and technology, the network cable commonly seen in a local area network mainly has three kinds of twisted pair, coaxial cable and optical cable, the twisted pair is a data transmission line composed of many pairs of lines, and the twisted pair is characterized by low price, so the twisted pair is widely applied to building facilities and relatively densely populated urban streets, residential areas, underground railways, underground streets, large power stations and important industrial and mining enterprises, and a certain number of network cables are arranged in these areas, and the network cables are affected by complex natural and man-made factors, and commonly used network cables have six types, seven types and higher specification network cables.

[0003] In the process of realizing the utility model, the inventor finds that at least the following problems exist in the prior art

[0004] The existing network cable structure is too simple, and the network cable has poor anti-interference capability. UTILITY MODEL CONTENTS

[0005] The utility model aims at the shortage of the prior art, and provides an anti-interference network cable, which can improve the anti-interference capability of the network cable by optimizing the network cable structure, so that the quality of the network cable is improved.

[0006] In order to realize the above object, the utility model adopts the following technical scheme:

[0007] An anti-interference network cable comprises an outer skin layer, a first shielding layer, a buffer layer and a protective layer which are sequentially arranged from outside to inside, the inside of the protective layer is provided with a framework, the inside of the protective layer is divided into at least four accommodating cavities by the framework, a group of twisted pair cores are arranged in the accommodating cavities, the twisted pair cores are sequentially wrapped with an insulating layer and a second shielding layer from outside to inside, and the framework comprises four isolation portions, an arc-shaped clamping portion is formed between two adjacent isolation portions, the arc-shaped clamping portion is provided with a plurality of clamping portions in contact with the second shielding layer, and the plurality of clamping portions are arranged along the surface of the arc-shaped clamping portion.

[0008] In some possible implementation manners, the first shielding layer is an aluminum-magnesium mesh layer, and the second shielding layer is an aluminum foil shielding layer.

[0009] In some possible implementation manners, the isolation portions are formed by extending from the center of the framework, and the end portions of the isolation portions are T-shaped structures.

[0010] In some possible implementation manners, the framework and the plurality of clamping portions are integrated structures.

[0011] In some possible implementation manners, the fireproof material is filled between the framework and the protective layer.

[0012] In some possible implementation manners, the twisted pair core comprises two twisted cores, and the twisted cores are wrapped by the insulation layer.

[0013] In some possible implementation manners, the thickness of the insulation layer is less than the thickness of the second shielding layer.

[0014] In some possible implementation manners, the outer skin layer is formed on the outer wall of the first shielding layer by hot melting.

[0015] In some possible implementation manners, the thickness of the outer skin layer is less than the thickness of the first shielding layer.

[0016] In some possible implementation manners, the material of the outer skin layer is polyolefin, and the material of the protective layer is rubber.

[0017] One of the above technical solutions has the following beneficial effects

[0018] The utility model discloses a network cable structure, it includes the twisted pair core, the framework, the protective layer, the insulation layer, the first shielding layer, the second shielding layer and the outer skin layer, the first shielding layer and the second shielding layer are designed by the outer to the inside and surround the twisted pair core, and it is helpful to improve the anti -interference performance between the twisted pair core, thereby the stability of network cable signal transmission is improved, simultaneously, the framework is designed, and the inside of protective layer is divided into four independent accommodating cavities by the framework, and the pair -twisted pitch between each group twisted pair core is not equal, and it is helpful to reduce the crosstalk, and improve the anti -interference performance of network cable, in addition, the second shielding layer and the contact part of isolation part are arc bayonets, and the arc bayonet is equipped with a plurality of clamping parts, and the arc bayonet is matched with a plurality of clamping parts, can be clamped the second shielding layer of wrapping twisted pair core, can increase the stability of the contact between the second shielding layer and the isolation part, avoids the situation that the second shielding layer is displaced or falls off due to the network cable bending, and also can improve the mechanical property of network cable. BRIEF DESCRIPTION OF DRAWINGS

[0019] The features, advantages and technical effects of the exemplary embodiments of the utility model will be described below with reference to the drawings.

[0020] Figure 1 It is the structural schematic drawing of the utility model.

[0021] Among them, the sign explanation is as follows:

[0022] 1-outer skin layer;

[0023] 2-first shielding layer;

[0024] 3-buffer layer;

[0025] 4-protective layer;

[0026] 5 - skeleton; 51 - isolation part; 52 - arc-shaped notch; 53 - clamping part;

[0027] 6 - twisted pair core;

[0028] 7 - insulation layer;

[0029] 8 - second shielding layer. DETAILED DESCRIPTION

[0030] As used in the specification and claims, certain terminology is used to refer to certain components. Those of ordinary skill in the art will appreciate that different names are often used to refer to the same component by different manufacturers. The specification and claims do not serve as a means to distinguish components based on the names used to refer to the components, but rather serve as a means to distinguish components based on the functional differences between the components. As used throughout this specification and in the claims, "comprising" is intended to mean "including but not limited to." "Consisting essentially of" means that the composition or process can include additional components, so long as these additional components do not materially alter the basic and novel characteristics of the claimed composition or process. "Substantially" and "about" are used to indicate that a value includes the standard deviation of error acceptable in the art for the particular application.

[0031] In addition, the terms "first", "second", and the like, are used only to describe the purpose and are not to be interpreted as indicating or implying relative importance.

[0032] In the utility model, unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0033] The utility model will be further described in detail below in combination with the drawings, but not as the limitation of the utility model.

[0034] Example one

[0035] Because the existing network cable structure is too simple, the network cable has poor anti-interference ability.

[0036] As Figure 1As shown, the anti-interference network cable comprises, from outside to inside, an outer skin layer 1, a first shielding layer 2, a buffer layer 3 and a protective layer 4; the protective layer 4 is internally provided with a framework 5, the framework 5 divides the inside of the protective layer 4 into at least four accommodating cavities, the inside of the accommodating cavity is provided with a group of twisted pair cores 6, and the outside of the twisted pair core 6 is sequentially wrapped with an insulating layer 7 and a second shielding layer 8; the framework 5 comprises four isolation portions 51, and an arc-shaped bayonet 52 is formed between adjacent two isolation portions 51, the arc-shaped bayonet 52 is provided with a plurality of clamping portions 53 in contact with the second shielding layer 8, and the plurality of clamping portions 53 are arranged on the surface of the arc-shaped bayonet 52. The network cable structure is optimized, the first shielding layer 2 and the second shielding layer 8 are designed to surround the twisted pair core 6 from outside to inside, which helps to improve the anti-interference performance between the twisted pair cores 6, thereby improving the stability of network signal transmission, meanwhile, the framework 5 is designed, the inside of the protective layer 4 is divided into four independent accommodating cavities by the framework 5, the twist pitch between the twisted pair cores 6 in each group is not equal, which helps to reduce crosstalk and improve the anti-interference performance of the network cable, in addition, the contact part between the second shielding layer 8 and the isolation portion 51 is an arc-shaped bayonet 52, the arc-shaped bayonet 52 is provided with a plurality of clamping portions 53, the arc-shaped bayonet 52 cooperates with the plurality of clamping portions 53, can clamp the second shielding layer 8 wrapping the twisted pair core 6, can increase the stability of the contact between the second shielding layer 8 and the isolation portion 51, avoid the displacement or falling off of the second shielding layer 8 caused by the bending of the network cable, and also improve the mechanical properties of the network cable. The buffer layer 3 is composed of a buffer material, the material of the buffer material is preferably glass fiber, and other buffer materials can also be used, which is not limited here.

[0037] In the anti-interference network cable according to the utility model, the first shielding layer 2 is an aluminum magnesium mesh layer, the aluminum magnesium mesh layer is woven with metal mesh, which can improve the tensile strength of the network cable and also form a shielding effect, thereby improving the anti-interference performance of the network cable, and the second shielding layer 8 is an aluminum foil shielding layer, which can increase the electromagnetic signal shielding effect of the network cable.

[0038] In the anti-interference network cable according to the utility model, the isolation portion 51 extends from the center of the framework 5 to form an accommodating cavity, and the end portion of the isolation portion 51 is in a T-shaped structure, but the utility model is not limited thereto, and the end portion of the isolation portion 51 can also adopt other regular or irregular shapes, which is not limited here.

[0039] In the anti-interference network cable according to the utility model, the framework 5 and the plurality of clamping portions 53 are in an integrated structure, which is convenient for unified production of the framework 5, thereby reducing the production cost of the framework 5, and at the same time, the integrated structure can improve the mechanical strength of the framework 5 as a whole.

[0040] In the anti-interference network cable according to the utility model, the fireproof material is filled between the framework 5 and the protective layer 4. Specifically, the fireproof material adopts inorganic minerals, preferably magnesium hydroxide, which starts to decompose and release crystal water when the temperature reaches 350 DEG C. Similarly, the crystal water can become water vapor under high temperature conditions to absorb harmful gases and smoke particles. Another product of magnesium hydroxide decomposition is magnesium oxide, which can achieve the purpose of fireproofing when sintered into solid magnesium oxide.

[0041] In the anti-interference network cable according to the utility model, the material of the outer skin layer 1 is polyolefin, which has wear resistance and good insulation performance for electricity, and is used to manufacture electrical insulation materials and insulation thermal insulation materials. Polyolefin has good chemical corrosion resistance and resistance to corrosion of acid, alkali, salt and other chemicals, which helps to improve the service life of the network cable. The material of the protective layer 4 is rubber, which is a high-elasticity polymer material with reversible deformation. It is elastic at room temperature and can produce large deformation under the action of very small external force. It can restore to its original state after the external force is removed, which helps to improve the tensile performance of the network cable.

[0042] The working principle of the utility model is:

[0043] The utility model discloses a network cable structure, which comprises a framework 5, a protective layer 4, a first shielding layer 2, a second shielding layer 8 and a plurality of twisted pair wire cores 6. The framework 5 is arranged on the outer surface of the protective layer 4. The first shielding layer 2 and the second shielding layer 8 are arranged on the outer surface of the framework 5. The twisted pair wire cores 6 are arranged in the protective layer 4. The first shielding layer 2 and the second shielding layer 8 surround the twisted pair wire cores 6 from outside to inside. The framework 5 divides the protective layer 4 into four independent accommodating cavities.

[0044] Embodiment two

[0045] Different from embodiment one, the twisted pair wire core 6 of the embodiment comprises two wire cores twisted with each other. The wire core is wrapped with an insulation layer 7. The insulation layer 7 cooperates with the second shielding layer 8 to shield and protect the interference of external signals on the twisted pair wire cores 6. The thickness of the insulation layer 7 is less than that of the second shielding layer 8, so as to avoid that the thickness of the insulation layer 7 is too large and occupies the space of the second shielding layer 8, which is not conducive to improving the anti-interference effect of the network cable.

[0046] Other structures are the same as those of embodiment one, which will not be described here.

[0047] Embodiment three

[0048] Different from the first embodiment, the outer skin layer 1 of the present embodiment is formed on the outer wall of the first shielding layer 2 by hot melting, which can increase the tensile and compressive effect of the outer skin layer 1, and the thickness of the outer skin layer 1 is smaller than that of the first shielding layer 2, so that the network cable can accommodate the first shielding layer 2 with larger thickness, which is helpful to improve the anti-interference performance of the network cable.

[0049] The other structures are the same as those of the first embodiment, which will not be described here.

[0050] According to the disclosure and teaching of the above description, the skilled in the art can also change and modify the above embodiments. Therefore, the present application is not limited to the above specific embodiments, and any obvious improvement, replacement or modification made by the skilled in the art on the basis of the present application belongs to the protection scope of the present application. In addition, although some specific terms are used in the present application, these terms are only for convenience of description and do not constitute any limitation on the present application.

Claims

1. An interference-resistant network cable, characterized by, The outer skin layer (1), the first shielding layer (2), the buffer layer (3) and the protective layer (4) are sequentially arranged from outside to inside. The protective layer (4) is internally provided with a framework (5), which divides the inside of the protective layer (4) into at least four accommodating cavities, and each accommodating cavity is internally provided with a group of twisted pair cores (6), and the twisted pair core (6) is externally wrapped with an insulating layer (7) and a second shielding layer (8) in sequence. The framework (5) comprises four isolation portions (51), and an arc-shaped clamping portion (52) is formed between adjacent two isolation portions (51), and the arc-shaped clamping portion (52) is provided with a plurality of clamping portions (53) in contact with the second shielding layer (8), and the plurality of clamping portions (53) are arranged on the surface of the arc-shaped clamping portion (52).

2. The interference-resistant network cable of claim 1, wherein: The first shielding layer (2) is an aluminum magnesium mesh layer, and the second shielding layer (8) is an aluminum foil shielding layer.

3. The anti-interference network cable as described in claim 1, characterized in that: The isolation portion (51) extends from the center of the framework (5) and is in T-shaped structure at the end.

4. The interference-resistant network cable of claim 1, wherein: The framework (5) and the plurality of clamping portions (53) are in integral structure.

5. The tamper-resistant network cable of claim 1, wherein: The framework (5) and the protective layer (4) are filled with fireproof material.

6. The tamper-resistant network cable of claim 1, wherein: The twisted pair core (6) comprises two wire cores which are twisted with each other, and the wire core is wrapped with the insulating layer (7) on the outside.

7. The tamper-resistant network cable of claim 1, wherein: The thickness of the insulating layer (7) is less than the thickness of the second shielding layer (8).

8. The interference-resistant network cable of claim 1, wherein: The outer skin layer (1) is formed on the outer wall of the first shielding layer (2) by hot melting.

9. The tamper-resistant network cable of claim 1, wherein: The thickness of the outer skin layer (1) is less than the thickness of the first shielding layer (2).

10. The interference-resistant network cable of claim 1, wherein: The material of the outer skin layer (1) is polyolefin, and the material of the protective layer (4) is rubber.

Images