CN219418562U - Flame-retardant transmission signal cable - Google Patents

Abstract

The utility model discloses a flame-retardant transmission signal cable, which comprises a mounting frame, wherein the outer peripheral surface of the mounting frame is provided with mounting grooves at equal angles, the inner sides of the mounting grooves are provided with conductors, the outer wall of the mounting frame is provided with a filling layer for coating the conductors, and the outer wall of the filling layer is sequentially wrapped with a shielding layer, a high-strength polyester wrapping tape and a tensile outer sheath. The tensile outer sheath has good deformability and high fracture extensibility when in use, and the Kevlar has good heat resistance and flame retardance, high strength, high wear resistance, high tear resistance, no generation of molten drops when meeting fire, no generation of toxic gas, thickening of the cloth surface when burning the cloth surface, and enhanced sealability, thus the cable can continue to work in a short time, and conditions can be created for personnel escape and firefighter rescue.

Description

Flame-retardant transmission signal cable

Technical Field

The utility model relates to the technical field of cables, in particular to a flame-retardant transmission signal cable.

Background

A power cable is a cable product used in a main line of an electric power system to transmit and distribute high-power electric power, and is made of one or more conductors insulated from each other and an outer insulating protective layer, and leads to transmit electric power or information from one place to another.

The transmission signal cable is a signal transmission tool, and the transmission performance of the transmission signal cable is generally only enhanced in daily life, and other factors are not considered, however, in recent years, along with the increase of high-rise buildings and frequent fire accidents, too much warning is brought to people, and in a fire state, the circuits normally run, so that the transmission of electric energy and signals is ensured, and conditions can be created for personnel escape and firefighter rescue.

Accordingly, there is a need to provide a flame retardant transmission signal cable that solves the above-mentioned technical problems.

Disclosure of Invention

The utility model aims to provide a flame-retardant transmission signal cable, which solves the problems that in the background technology, the transmission cable is difficult to ensure that electric energy and signals are continuously transmitted when encountering fire, so that conditions are difficult to create for personnel escape and firefighters to rescue wounded, and the technical scheme of the utility model provides a solution which is obviously different from the prior art aiming at the technical problem that the prior art is too single.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a fire-retardant transmission signal cable, includes the mounting bracket, the mounting groove has been seted up to the outer peripheral face equiangular degree of mounting bracket, the conductor is installed to the inboard of mounting groove, the mounting bracket outer wall is provided with filling layer cladding conductor, the outer wall of filling layer is provided with shielding layer, high strength polyester band and tensile oversheath around the package in proper order.

Preferably, the conductor comprises a wire core formed by twisting and an insulating sheath tangentially arranged on the outer side of the wire core, and the insulating sheath is made of polyethylene.

Preferably, the shielding layer is woven by a single layer of copper wires, the minimum diameter of the woven copper wires is.mm, and the weaving density of the copper wires is not less than%.

Preferably, the high strength polyester strapping is a non-hygroscopic high strength polyester strapping.

Preferably, the filling layer is filled with PP ropes.

Preferably, the tensile outer sheath is composed of a polyvinyl chloride layer and a Kevlar fiber layer, and the Kevlar fiber layer is arranged on the inner side of the polyvinyl chloride layer.

Compared with the prior art, the utility model has the beneficial effects that:

the tensile outer sheath has good deformability and high fracture extensibility when in use, and the Kevlar has good heat resistance and flame retardance, high strength, high wear resistance, high tear resistance, no generation of molten drops when meeting fire, no generation of toxic gas, thickening of the cloth surface when burning the cloth surface, and enhanced sealability, thus the cable can continue to work in a short time, and conditions can be created for personnel escape and firefighter rescue.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a schematic elevational view of the present utility model;

fig. 3 is an enlarged view of fig. 2 a in accordance with the present utility model.

In the figure: 1. a mounting frame; 2. a mounting groove; 3. a conductor; 301. a wire core; 302. an insulating sheath; 4. a filling layer; 5. a shielding layer; 6. high-strength polyester belting; 7. a tensile outer jacket; 701. a polyvinyl chloride layer; 702. a kevlar fiber layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

Referring to fig. 1-3, a flame retardant transmission signal cable comprises a mounting frame 1, wherein a mounting groove 2 is formed in the outer peripheral surface of the mounting frame 1 at equal angles, a conductor 3 is mounted on the inner side of the mounting groove 2, a filling layer 4 is arranged on the outer wall of the mounting frame 1 to cover the conductor 3, and a shielding layer 5, a high-strength polyester wrapping tape 6 and a tensile outer sheath 7 are sequentially arranged on the outer wall of the filling layer 4 in a wrapping mode.

As shown in fig. 1-3, the conductor 3 includes a twisted wire core 301 and an insulating sheath 302 tangentially arranged at the outer side of the wire core 301, the insulating sheath 302 is made of polyethylene, and the wire core 301 is mutually insulated from the surrounding environment or the adjacent conductor 3 by the arranged insulating sheath 302 made of polyethylene, so that the normal work is prevented from being affected by interference.

As shown in fig. 1-3, the shielding layer 5 is woven by a single-layer copper wire, the minimum diameter of the woven copper wire is 0.1mm, and the weaving density of the copper wire is not less than 90%, so that the effect of shielding external electromagnetic interference is ensured while the flexibility of the metal wire woven shielding layer 5 is ensured by setting the diameter and the weaving density of the copper wire of the shielding layer 5.

As shown in fig. 1-3, the high-strength polyester wrapping tape 6 is a non-hygroscopic high-strength polyester wrapping tape, and the high-strength polyester wrapping tape 6 realizes the improvement of the moisture resistance of the cable core and plays a role in stabilizing the cable core.

As shown in fig. 1-3, the filling layer 4 is filled by PP ropes, and the PP ropes are adopted for the filling layer 4, so that the filling layer has the advantages of no water absorption, corrosion resistance, no mildew, wear resistance and long service life.

As shown in fig. 1-3, the tensile outer sheath 7 is composed of a polyvinyl chloride layer 701 and a kevlar fiber layer 702, the kevlar fiber layer 702 is arranged on the inner side of the polyvinyl chloride layer 701, the tensile outer sheath 7 has good corrosion resistance and enough mechanical property through the arranged polyvinyl chloride layer 701, certain atmospheric resistance, softness, vibration resistance, light weight and convenient processing and laying, the tensile outer sheath 7 has good deformability through the arranged kevlar fiber layer 702, has high breaking extensibility in use, has permanent heat resistance, flame retardance, antistatic property, acid and alkali resistance and corrosion of organic solvents, has high strength, high wear resistance, high tear resistance, generates no molten drops when encountering fire, does not generate toxic gas, thickens a cloth surface when firing a cloth surface, enhances sealability to play a role in protecting the inner side of a cable, enables the cable to continue working in a short time, and can create conditions for rescue personnel and firefighters.

Working principle: during the use, make sinle silk 301 and surrounding environment or adjacent conductor 3 mutual insulation through the insulating sheath 302 that sets up, avoid receiving the interference and influence normal work, through copper wire diameter and the weaving density that sets up shielding layer 5, realized when guaranteeing the flexibility of wire weaving shielding layer 5, the effect of shielding external electromagnetic interference has been guaranteed, through high strength polyester belting 6, the dampproofing performance of improvement cable core has been realized, play the effect of stabilizing the cable core, make tensile oversheath 7 have better corrosion resistance through the polyvinyl chloride layer 701 that sets up, sufficient mechanical properties, certain atmospheric resistance, softness, vibration resistance, light in weight, processing and laying are convenient, and make tensile oversheath 7 have good deformability through the kevlar fibrous layer 702 that sets up, possess very high fracture extensibility when using, and the kevlar has permanent heat-resisting flame retardance, anti-static, acid-base and organic solvent's erosion, high resistance, high abrasion, high crack resistance, fire droplet production, do not produce toxic gas, the cable face cloth is sealed when making the cable face, can continue the life-saving personnel to protect in the life-time, can also take the effect for the life-saving personnel.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a fire-retardant type transmission signal cable, includes mounting bracket (1), its characterized in that: the installation groove (2) has been seted up to the outer peripheral face equiangular degree of mounting bracket (1), conductor (3) are installed to the inboard of mounting groove (2), mounting bracket (1) outer wall is provided with filling layer (4) cladding conductor (3), the outer wall of filling layer (4) is provided with shielding layer (5), high strength polyester band (6) and tensile oversheath (7) around the package in proper order.

2. A flame retardant transmission signal cable according to claim 1, wherein: the conductor (3) comprises a wire core (301) formed by twisting and an insulating sheath (302) tangentially arranged on the outer side of the wire core (301), and the insulating sheath (302) is made of polyethylene materials.

3. A flame retardant transmission signal cable according to claim 1, wherein: the shielding layer (5) is formed by weaving a single-layer copper wire, the minimum diameter of the woven copper wire is 0.1mm, and the weaving density of the copper wire is not less than 90%.

4. A flame retardant transmission signal cable according to claim 1, wherein: the high-strength polyester belting (6) is a non-hygroscopic high-strength polyester belting.

5. A flame retardant transmission signal cable according to claim 1, wherein: the filling layer (4) is filled by PP ropes.

6. A flame retardant transmission signal cable according to claim 1, wherein: the tensile outer sheath (7) is composed of a polyvinyl chloride layer (701) and a Kevlar fiber layer (702), and the Kevlar fiber layer (702) is arranged on the inner side of the polyvinyl chloride layer (701).