CN215377029U

CN215377029U - Flame-retardant communication cable

Info

Publication number: CN215377029U
Application number: CN202121356966.0U
Authority: CN
Inventors: 韩世虎
Original assignee: Dongguan Lingya Digital Communication Technology Co ltd
Current assignee: Dongguan Lingya Digital Communication Technology Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-12-31
Anticipated expiration: 2031-06-17

Abstract

The utility model discloses a flame-retardant communication cable which comprises an outer sheath, a metal mesh shielding isolation layer, a flame-retardant liquid pipe, a high-temperature-resistant filling layer, an insulation layer, a cable core and a flame-retardant coating, wherein the outer sheath is sleeved outside the metal mesh shielding isolation layer, the flame-retardant liquid pipe is arranged at the center of the inner part of the metal mesh shielding isolation layer, the inner part of the flame-retardant liquid pipe is divided into a plurality of flame-retardant liquid cavities which are equally divided, flame-retardant liquid is filled in the flame-retardant liquid cavities, the insulation layer is wrapped outside the cable core, the high-temperature-resistant filling layer is wrapped outside the insulation layer, the high-temperature-resistant filling layer is arranged between the insulation layer and the metal mesh shielding isolation layer, and the flame-retardant coating is coated outside the outer sheath. The utility model has good heat resistance and flame retardant property and high economic benefit.

Description

Flame-retardant communication cable

Technical Field

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

Background

At present, a wire cable is a wire product for transmitting electric energy and electric signals and realizing electromagnetic energy conversion, the cable generally consists of a cable core for transmitting electric power or electric signals and a sheath for protecting and insulating, the cable which only comprises one cable core and has a thinner diameter is generally called as a wire, some wires are not provided with an insulating sheath and are called as bare wires, the cable core in the cable is made of a metal material with good electrical conductivity, and copper (good electrical conductivity) or aluminum (low cost) is generally used;

the cable is easy to burn when meeting high temperature, but the traditional cable is lack of a flame-retardant structure inside, and once the internal lead is short-circuited and burnt, the fire can spread.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flame-retardant communication cable to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a fire-retardant type communication cable, includes oversheath, metal mesh shielding isolation layer, flame retardant liquid pipe, high temperature resistant filling layer, insulating layer, cable core and fire-retardant coating, the oversheath cup joints the outside of metal mesh shielding isolation layer, the inside center department of metal mesh shielding isolation layer installs flame retardant liquid pipe, the internal partitioning of flame retardant liquid pipe is the fire-retardant liquid chamber of a plurality of partition, the inside packing in fire-retardant liquid chamber has flame retardant liquid, the outside cladding of cable core has the insulating layer, the outside cladding of insulating layer has the high temperature resistant filling layer, high temperature resistant filling layer is located between insulating layer and the metal mesh shielding isolation layer, the outside coating of oversheath has fire-retardant coating.

Further, the high-temperature-resistant filling layer is internally filled with flame-retardant powder and silicon rubber particles.

Further, the outer sheath is made of polyethylene material or polyvinyl fluoride material.

Further, the flame retardant liquid pipe is one of a rigid polyvinyl chloride pipe, a cross-linked polyethylene pipe or chlorinated polyvinyl chloride.

Further, the outer sheath and the metal mesh shielding isolation layer are formed through co-extrusion continuous vulcanization.

Further, the thickness of the high-temperature-resistant filling layer is 0.15mm-0.21mm, and the thickness of the flame-retardant coating layer is 0.1mm-0.15 mm.

Compared with the prior art, the utility model has the following beneficial effects: the flame-retardant communication cable provided by the utility model has good heat resistance and flame retardance, and high economic benefit.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a flame retardant communication cable according to an embodiment of the utility model.

Reference numerals:

1. an outer sheath; 2. a metal mesh shielding isolation layer; 3. a flame retardant liquid pipe; 4. a high temperature resistant filler layer; 5. an insulating layer; 6. a cable core; 7. a flame retardant coating; 8. a flame-retardant liquid chamber.

Detailed Description

The utility model is further described with reference to the following drawings and detailed description:

in the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, a flame retardant communication cable according to an embodiment of the present invention includes an outer sheath 1, a metal mesh shielding isolation layer 2, a flame retardant liquid pipe 3, a high temperature resistant filling layer 4, an insulation layer 5, a cable core 6 and a flame retardant coating 7, wherein the outer sheath 1 is sleeved outside the metal mesh shielding isolation layer 2, a flame retardant liquid pipe 3 is installed at the center of the inside of the metal mesh shielding isolation layer 2, the metal mesh shielding isolation layer 2 has a certain flame retardant effect, the outer sheath 1 is ignited to melt the flame retardant liquid pipe 3 at a high temperature to enable the flame retardant liquid to flow out at a corresponding position after the outer sheath 1 is ignited and broken, the flame retardant liquid pipe 3 is arranged inside the metal mesh shielding isolation layer 2 and is not easily scratched and broken, the inside of the flame retardant liquid pipe 3 is divided into a plurality of flame retardant liquid cavities 8 which are equally divided to prevent the flame retardant liquid in a local part from flowing out from the whole flame retardant liquid pipe 3, cause unnecessary waste, the inside packing of fire-retardant sap cavity 8 has fire-retardant liquid, the outside cladding of cable core 6 has insulating layer 5, the outside cladding of insulating layer 5 has high temperature resistant filling layer 4, high temperature resistant filling layer 4 is located between insulating layer 5 and the metal mesh screen isolation layer 2, the outside coating of oversheath 1 has fire-retardant coating 7.

According to the scheme provided by the utility model, the flame-retardant powder and the silicon rubber particles are filled in the high-temperature-resistant filling layer 4, so that the flame-retardant isolation is improved under the condition that the flame-retardant liquid in the flame-retardant liquid cavity 8 still cannot be flame-retardant when flowing out.

With the above scheme of the present invention, the outer sheath 1 is made of polyethylene material or polyvinyl fluoride material.

Through the scheme of the utility model, the flame retardant liquid pipe 3 is one of a rigid polyvinyl chloride pipe, a cross-linked polyethylene pipe or chlorinated polyvinyl chloride pipe, and has good environmental protection effect.

According to the scheme, the outer sheath 1 and the metal mesh shielding isolation layer 2 are formed through co-extrusion and continuous vulcanization.

Through the scheme of the utility model, the thickness of the high-temperature-resistant filling layer 4 is 0.15-0.21 mm, and the thickness of the flame-retardant coating 7 is 0.1-0.15 mm.

In conclusion, the flame-retardant communication cable provided by the utility model has the advantages of good heat resistance and flame retardance, high economic benefit, strong practicability and high popularization value.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The flame-retardant communication cable is characterized by comprising an outer sheath (1), a metal mesh shielding and isolating layer (2), a flame-retardant liquid pipe (3), a high-temperature-resistant filling layer (4), an insulating layer (5), a cable core (6) and a flame-retardant coating (7), wherein the outer sheath (1) is sleeved outside the metal mesh shielding and isolating layer (2), a flame-retardant liquid pipe (3) is installed at the center of the inside of the metal mesh shielding and isolating layer (2), the inside of the flame-retardant liquid pipe (3) is divided into a plurality of flame-retardant liquid cavities (8), the flame-retardant liquid cavities (8) are filled with flame-retardant liquid, the insulating layer (5) is wrapped outside the cable core (6), the high-temperature-resistant filling layer (4) is wrapped outside the insulating layer (5), and the high-temperature-resistant filling layer (4) is arranged between the insulating layer (5) and the metal mesh shielding and isolating layer (2), the outer part of the outer sheath (1) is coated with a flame retardant coating (7).

2. The flame retardant communication cable according to claim 1, wherein the high temperature resistant filler layer (4) is filled with flame retardant powder and silicone rubber particles.

3. The flame retardant communication cable according to claim 1, wherein the outer sheath (1) is made of polyethylene material or polyvinyl fluoride material.

4. The flame retardant communication cable according to claim 1, wherein the flame retardant liquid pipe (3) is one of a rigid polyvinyl chloride pipe, a cross-linked polyethylene pipe or chlorinated polyvinyl chloride.

5. The flame-retardant communication cable according to claim 1, wherein the outer sheath (1) and the metal mesh shielding and isolating layer (2) are formed by co-extrusion and continuous vulcanization.

6. The flame retardant communication cable according to claim 1, wherein the thickness of the high temperature resistant filler layer (4) is 0.15mm to 0.21mm, and the thickness of the flame retardant coating layer (7) is 0.1mm to 0.15 mm.