CN221687251U - A safety cable with multiple insulation layers - Google Patents

Abstract

The utility model relates to the technical field of cables, and provides a safety cable with a multilayer insulating protective layer, which comprises an outer protective sleeve, a flame-retardant layer, a buffer layer, metal armors, a filling layer and a cable core, wherein the flame-retardant layer is arranged on the inner side of the outer protective sleeve, the buffer layer is arranged on the inner side of the flame-retardant layer, the metal armors are arranged on the inner side of the buffer layer, the filling layer is arranged on the inner side of the metal armors, insulating structures are distributed among the outer protective sleeve, the flame-retardant layer, the buffer layer, the metal armors and the filling layer, and the cable core is uniformly distributed in the filling layer. The safety cable with the multilayer insulating protection layers ensures the reliability and the safety of the cable system under severe environment and high risk conditions through careful design of the structure and protection of different layers. Its stable transmission properties, excellent durability, and comprehensive safety protection make it the preferred cable solution for a variety of industrial and commercial applications.

Description

A safety cable with multiple insulation layers

Technical Field

The utility model relates to the technical field of cables, in particular to a safety cable with multiple insulating protective layers.

Background Art

As the infrastructure for power and signal transmission, cables play an irreplaceable role in various fields of modern society. They are widely used in power systems, communication networks, industrial automation and other fields, and undertake the key task of transmitting power and information. However, traditional cables have a series of problems when facing complex environments and demanding working conditions, which limit their performance and reliability.

Disadvantages of existing cables:

Lack of comprehensive protection: Traditional cables usually only have a basic outer sheath, and their comprehensive protection capabilities against extreme environments such as fire, high temperature, and corrosion are relatively limited, making it difficult to meet safety requirements under some special working conditions.

Insufficient anti-interference: In the process of cable transmission of signals, it is affected by external electromagnetic interference, resulting in reduced signal stability and reliability. Traditional cables have deficiencies in shielding and protection, especially in the case of high-density wiring, and are easily affected by signal crosstalk.

Poor flame retardancy and high temperature resistance: When a fire occurs, the flame retardancy and high temperature resistance of traditional cables are insufficient, which can easily lead to cable failure and increase the risk of fire spread.

Mechanical protection and durability issues: Traditional cables lack effective mechanical protection under complex mechanical stress and environmental conditions and are susceptible to physical damage, which reduces the durability of the cables.

Limited insulation performance: Traditional cable insulation materials are prone to aging under extreme conditions such as high temperature and high humidity, resulting in reduced insulation performance and affecting the safe operation of the cable.

Therefore, existing cables have a series of deficiencies when facing extreme environments, complex working conditions and high-demand application scenarios. A new generation of cable technology is urgently needed to solve these problems and improve the performance and reliability of cables in various fields. The new safety cable with multiple layers of insulation protection is proposed to make up for the deficiencies of traditional cables in the above aspects.

Utility Model Content

In order to overcome the defects of the prior art, the utility model aims to provide a safety cable with multiple insulating protective layers.

To achieve the above object, the technical solution of the utility model is implemented as follows: a safety cable with multiple layers of insulating protective layers, comprising an outer protective sheath, a flame retardant layer, a buffer layer, a metal armor, a filling layer and a cable core, wherein the flame retardant layer is arranged on the inner side of the outer protective sheath, the buffer layer is arranged on the inner side of the flame retardant layer, the metal armor is arranged on the inner side of the buffer layer, the filling layer is arranged on the inner side of the metal armor, an insulating structure is distributed between the outer protective sheath, the flame retardant layer, the buffer layer, the metal armor and the filling layer, and the cable core has a plurality of evenly distributed inside the filling layer;

The insulating structure comprises:

A first insulating layer disposed between the outer protective sheath and the flame retardant layer;

A second insulating layer disposed between the flame retardant layer and the buffer layer;

a third insulating layer disposed between the buffer layer and the metal armor;

A fourth insulating layer is disposed between the metal armor and the filling layer.

Preferably, a central reinforcing rib is provided at the inner center of the filling layer.

Preferably, the outer protective sleeve is made of cross-linked polyethylene.

Preferably, the flame retardant layer is made of silicone rubber.

Preferably, the buffer layer is made of natural rubber.

Preferably, the metal armor is formed by spirally winding a copper tape.

Preferably, the first insulating layer, the second insulating layer, the third insulating layer and the fourth insulating layer in the insulating structure are all made of cross-linked polyolefin.

Preferably, the central reinforcement rib is woven from steel wires.

The beneficial effects of the utility model are embodied in:

Comprehensive safety protection: Through the multi-layer structure design, the safety cable achieves all-round safety protection. The outer protective sheath, flame retardant layer and buffer layer effectively isolate external environmental factors and physical impact, prevent fire spread and damage, and ensure long-term stable operation of the cable.

Stable transmission performance: The metal armor layer provides mechanical strength and electromagnetic shielding, ensuring the stability and reliability of signal transmission. The highly conductive cable core and the rationally designed insulation structure ensure the high efficiency of power transmission and reduce signal attenuation and energy loss.

Excellent durability: The filling layer and central reinforcement ribs in the structure make the cable more flexible and durable, reduce the impact of external factors on the cable, reduce the risk of deformation and breakage, and extend the service life of the cable.

Multiple insulation protection: The insulation structure adopts a multi-layer design, and each layer of insulation material cooperates with each other to provide multiple insulation protection for the cable, ensuring reliable insulation performance in different working environments.

This multi-layer insulation protection layer of safety cable ensures the reliability and safety of the cable system in harsh environments and high-risk conditions through careful structural design and different levels of protection. Its stable transmission performance, excellent durability and comprehensive safety protection make it the preferred cable solution in various industrial and commercial applications.

BRIEF DESCRIPTION OF THE DRAWINGS

In the attached picture:

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG2 is a schematic structural diagram of an insulation structure of the present utility model;

Description of reference numerals:

1. Outer protective sleeve; 2. Flame retardant layer; 3. Buffer layer; 4. Metal armor; 5. Insulation structure; 6. Filling layer; 7. Cable core; 8. Center reinforcement rib; 51. First insulation layer; 52. Second insulation layer; 53. Third insulation layer; 54. Fourth insulation layer.

DETAILED DESCRIPTION

The utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. 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.

It should be noted that if the utility model embodiments involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, "multiple" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

Please refer to Figures 1-2 of the specification, the utility model provides a safety cable with multiple insulation protection layers:

The structure of the safety cable:

Outer protective sheath 1: Made of high-quality cross-linked polyethylene material, it has excellent weather resistance and corrosion resistance, ensuring that the cable can maintain good performance in harsh environments.

Flame retardant layer 2: As the first line of defense, the flame retardant layer made of silicone rubber can effectively isolate flames and smoke in case of fire, prevent the spread of fire, and ensure the safety performance of the cable.

Buffer layer 3: Utilizing the elasticity of natural rubber, the buffer layer can absorb energy when the cable is subjected to external impact, reduce the impact on the internal structure of the cable, and improve the durability of the cable.

Metal armor 4: Spirally wound copper tape not only provides mechanical strength and protection for the cable, but also effectively shields external electromagnetic interference to ensure the stability of signal transmission.

Filling layer 6: acts as a support and filler for the cable structure, making the cable smoother and more uniform, and improving the flexibility and twisting resistance of the cable.

Cable core 7: contains multiple evenly distributed conductors, responsible for the transmission of electrical energy, and uses high conductivity materials to ensure efficient transmission of the cable.

Insulation structure 5:

The first insulating layer 51 has excellent insulation performance, effectively isolates the influence of the external environment on the cable, and ensures the stability of the cable operation.

The second insulating layer 52 provides additional insulating protection between the flame retardant layer and the buffer layer to reduce the damage to the cable caused by external factors.

The third insulating layer 53 provides insulation shielding for the metal armor to avoid direct contact between the metal armor and the filling layer, thereby reducing the risk of short circuit.

The fourth insulating layer 54 provides insulation protection for the filling layer, ensuring that the cable can maintain reliable insulation performance under various conditions.

Center reinforcement 8:

It is located in the inner center of the filling layer and is woven from high-strength steel wires to make the cable more structurally strong, reduce the risk of deformation caused by external forces, and increase the service life of the cable.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims (8)

1. A safety cable with multiple layers of insulating protective layers, comprising an outer protective sheath (1), a flame retardant layer (2), a buffer layer (3), a metal armor (4), a filling layer (6) and a cable core (7), characterized in that the flame retardant layer (2) is arranged on the inner side of the outer protective sheath (1), the buffer layer (3) is arranged on the inner side of the flame retardant layer (2), the metal armor (4) is arranged on the inner side of the buffer layer (3), the filling layer (6) is arranged on the inner side of the metal armor (4), an insulating structure (5) is distributed between the outer protective sheath (1), the flame retardant layer (2), the buffer layer (3), the metal armor (4) and the filling layer (6), and the cable core (7) has a plurality of uniformly distributed inner portions of the filling layer (6); The insulating structure (5) comprises: A first insulating layer (51) disposed between the outer protective sheath (1) and the flame retardant layer (2); A second insulating layer (52) disposed between the flame retardant layer (2) and the buffer layer (3); a third insulating layer (53) disposed between the buffer layer (3) and the metal armor (4); A fourth insulating layer (54) is provided between the metal armor (4) and the filling layer (6). 2. A safety cable with multiple insulating protective layers according to claim 1, characterized in that a central reinforcing rib (8) is provided at the inner center of the filling layer (6). 3. A safety cable with multiple insulating protective layers according to claim 1, characterized in that the outer protective sheath (1) is made of cross-linked polyethylene. 4. A safety cable with multiple insulating protective layers according to claim 1, characterized in that the flame retardant layer (2) is made of silicone rubber. 5. A safety cable with multiple insulating protective layers according to claim 1, characterized in that the buffer layer (3) is made of natural rubber. 6. A safety cable with multiple insulating protective layers according to claim 1, characterized in that the metal armor (4) is formed by spirally wrapping a copper tape. 7. A safety cable with multiple insulating protective layers according to claim 1, characterized in that the first insulating layer (51), the second insulating layer (52), the third insulating layer (53) and the fourth insulating layer (54) in the insulating structure (5) are all made of cross-linked polyolefin. 8. A safety cable with multiple insulating protective layers according to claim 2, characterized in that the central reinforcing rib (8) is woven from steel wires.