CN212209005U

CN212209005U - Fireproof wire and cable

Info

Publication number: CN212209005U
Application number: CN202020996153.7U
Authority: CN
Inventors: 黄国亮
Original assignee: Guangdong Nanfan Electrical Appliance Co ltd
Current assignee: Guangdong Nanfan Electrical Appliance Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-12-22
Anticipated expiration: 2030-06-03

Abstract

The utility model discloses a fire prevention type wire and cable, including the copper core, the copper core is provided with the stranded, and intertwine, the copper core outside is provided with the filling layer, the outside of filling layer is provided with the insulating layer, the outside of insulating layer is provided with compound transition layer, the outside of compound transition layer is provided with the steel band protective layer, be provided with a plurality of concatenation steel bands of evenly arranging along the circumference in the steel band protective layer, head and the tail are to piecing together between the concatenation steel band, the outside of steel band protective layer is provided with the flame retardant coating, the outside of flame retardant coating is provided with the outer jacket. Cross setting up the insulating layer, being provided with a plurality of crystal fiber silks of evenly arranging along the circumference in the insulating layer, the crystal fiber silk transversely arranges, and the contact is connected between the crystal fiber silk, and the crystal fiber silk of evenly arranging had both guaranteed effectively completely cut off to outside high temperature, simultaneously, can not lead to the bending property decline of cable because of the material hardness of crystal fiber silk, guarantees the practicality of cable.

Description

Fireproof wire and cable

Technical Field

The utility model relates to a cable equipment technical field specifically is a fire prevention type wire and cable.

Background

The wire and cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion, the wire and cable in a broad sense is also called as cable for short, the cable in a narrow sense is insulated cable, and it can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, total protective layers and outer jackets, the cable may also have additional conductors without insulation. The wire and cable is used as a main carrier of power transmission, is widely applied to the aspects of electrical equipment, lighting circuits, household appliances and the like, and the quality of the wire and cable directly influences the engineering quality and the life and property safety of consumers.

Along with the development of society, the use of electric wires and cables relates to the aspects of our lives, because the electric wires and cables are widely used, accidents such as electric leakage and the like of the electric wires and cables frequently occur due to overhigh use temperature of the electric wires and cables caused by external fire, great loss is brought to lives and properties of people, the safety requirements of the market on the electric wires and cables are higher and higher, certain special places need to ensure that the electric wires and cables work normally all the time, if the electric wires and cables fail due to external fire, inestimable loss is caused, the improvement of the use safety performance of the electric wires and cables is also important on the premise of ensuring the transmission (magnetic) performance of the electric wires and cables, the existing fire-resistant cables on the market only consider the flame-retardant effect of the electric wires and the external fire sources, the conditions that the electric wires and cables cannot be used normally due to long-time contact with the fire sources and overh, the utility of the cable is greatly compromised.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire prevention type wire and cable to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire prevention type wire and cable, includes the main part, including the copper core, the copper core is provided with the stranded, and intertwine, the copper core outside is provided with the filling layer, the outside of filling layer is provided with the insulating layer, the outside of insulating layer is provided with compound transition layer, the outside of compound transition layer is provided with the steel band protective layer, be provided with a plurality of concatenation steel bands of evenly arranging along the circumference in the steel band protective layer, head and the tail are to piecing together between the concatenation steel band, the outside of steel band protective layer is provided with the flame retardant coating, the outside winding of flame retardant coating is provided with the outer jacket, the outside winding of outer jacket has outer protection band layer.

Preferably, each strand of the copper core is wrapped by an insulating layer, the insulating layer is made of polyvinyl chloride, and the insulating layer is arranged inside the filling layer.

Preferably, a plurality of crystal fiber yarns uniformly distributed along the circumference are arranged in the heat insulation layer, the crystal fiber yarns are transversely distributed, and the crystal fiber yarns are in contact connection.

Preferably, the composite transition layer is a high-strength polyester transmission belt.

Preferably, the material of the fire-resistant layer is a fire-resistant mica tape surface filling fire retardant.

Preferably, the outer protective belt layer is glued to the outer side of the outer protective layer, and the outer protective belt layer is made of silicon rubber.

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

1. the utility model discloses a set up the insulating layer, be provided with a plurality of crystal fiber silk along the circumference evenly arranged in the insulating layer, crystal fiber silk transversely arranges, contact connection between the crystal fiber silk, the crystal fiber silk of evenly arranging has both guaranteed the effective isolation to outside high temperature, simultaneously, can not lead to the bending property of cable to descend because of the material hardness of crystal fiber silk, guarantee the practicality of cable, when the cable contacts the conflagration, the flame retardant coating of fire retardant is scribbled on the fire resistant mica tape surface, isolate flame and cable inside, prevent flame further damage cable inside, simultaneously, set up a plurality of concatenation steel bands of evenly arranging along the circumference in the steel band protection layer, prevent each layer in the steel band protection layer from being heated and warp, extrude inside copper core, guarantee the normal work of cable, the insulating layer cooperates with the flame retardant coating, can effectively protect the cable, prevent flame erosion, meanwhile, the damage of flame high temperature to the inside of the cable is isolated, the copper core inside the cable is really protected, and the normal use of the cable is ensured.

Drawings

Fig. 1 is a schematic view of the appearance structure of the present invention.

Fig. 2 is a schematic diagram of a half-section structure of the present invention.

In the figure: 1. copper core, 2, insulating layer, 3, filling layer, 4, insulating layer, 5, compound transition layer, 6, steel band protective layer, 61, concatenation steel band, 7, flame retardant coating, 8, outer jacket, 9, outer protection band layer.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides an embodiment: a fireproof electric wire and cable comprises a copper core 1, wherein the copper core 1 is provided with a plurality of strands which are mutually wound, a filling layer 3 is arranged on the outer side of the copper core 1, an insulating layer 2 is wrapped on the outer side of each strand of the copper core 1, the insulating layer 2 is made of polyvinyl chloride, the insulating layer 2 is arranged inside the filling layer 3, a heat insulating layer 4 is arranged on the outer side of the filling layer 3, a plurality of crystal fiber wires which are uniformly distributed along the circumference are arranged in the heat insulating layer 4, the crystal fiber wires are transversely distributed and are in contact connection through the arrangement of the heat insulating layer 4, the crystal fiber wires are arranged in the heat insulating layer 4, the crystal fiber wires are in contact connection, the crystal fiber wires which are uniformly distributed not only ensure effective isolation to high temperature of the outside, but also can not cause the reduction of the bending property of the cable due to the material hardness of the crystal, the practicability of the cable is ensured, the composite transition layer 5 is arranged on the outer side of the heat insulation layer 4, the composite transition layer 5 is a high-strength polyester transmission belt, the outer side of the composite transition layer 5 is provided with a steel belt protection layer 6, a plurality of spliced steel belts 61 evenly distributed along the circumference are arranged in the steel belt protection layer 6, the spliced steel belts 61 are spliced end to end, the outer side of the steel belt protection layer 6 is provided with a fire-resistant layer 7, the fire-resistant layer 7 is made of fire-resistant mica belt surface filling fire retardant, the outer side of the fire-resistant layer 7 is provided with an outer protection layer 8, the outer side of the outer protection layer 8 is wound with an outer protection belt layer 9, the outer protection belt layer 9 is glued on the outer side of the outer protection layer 8, the outer protection belt layer 9 is made of silicon rubber, in the using process of the cable, the condition of cable surface damage often occurs, the outer protection belt, the winding is pasted new outer protection band layer 9 can, when the cable contacts the conflagration, fire-resistant mica tape surface filling flame retardant's flame retardant coating 7, with flame and the inside isolated of cable, prevent that flame from further damaging inside the cable, and simultaneously, set up a plurality of concatenation steel band 61 of evenly arranging along the circumference in the steel band protective layer 6, prevent that each layer in the steel band protective layer 6 is heated and is out of shape, extrude inside copper core 1, guarantee the normal work of cable, 4 cooperation flame retardant coatings 7 of insulating layer cooperate, can effectively protect the cable, prevent flame erosion, and simultaneously, isolated flame high temperature is to the inside damage of cable, really protect the inside copper core 1 of cable, ensure the normal use of cable.

The working principle is as follows: when the utility model is used, the utility model needs to be understood simply, the utility model is provided with a plurality of flame-retardant heat-insulation protective layers for improving the fireproof performance of the cable, through the arrangement of the heat-insulation layer 4, a plurality of crystal fiber wires which are evenly distributed along the circumference are arranged in the heat-insulation layer 4, the crystal fiber wires are transversely distributed, the crystal fiber wires are in contact connection, the evenly distributed crystal fiber wires not only ensure the effective isolation of the high temperature of the outside, but also can not cause the reduction of the bending property of the cable due to the material hardness of the crystal fiber wires, thereby ensuring the practicability of the cable, when the cable is contacted with a fire, the flame retardant layer 7 of the flame retardant is filled on the surface of the fire-resistant mica tape, the flame is isolated from the inside of the cable, the flame is prevented from further damaging the inside of the cable, simultaneously, a plurality of spliced steel belts 61 which are evenly distributed along the, extrude inside copper core 1, guarantee the normal work of cable, insulating layer 4 cooperates 7 cooperations of flame retardant coating, can effectively protect the cable, prevents flame erosion, and simultaneously, isolated flame high temperature really protects the inside copper core 1 of cable to the inside damage of cable, ensures the normal use of cable.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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

1. The utility model provides a fire prevention type wire and cable, includes copper core (1), its characterized in that: copper core (1) is provided with the stranded, and intertwine, copper core (1) outside is provided with filling layer (3), the outside of filling layer (3) is provided with insulating layer (4), the outside of insulating layer (4) is provided with compound transition layer (5), the outside of compound transition layer (5) is provided with steel band protective layer (6), be provided with a plurality of concatenation steel band (61) of evenly arranging along the circumference in steel band protective layer (6), head and the tail are to piecing together between concatenation steel band (61), the outside of steel band protective layer (6) is provided with flame retardant coating (7), the outside of flame retardant coating (7) is provided with outer jacket (8), the outside winding of outer jacket (8) has outer protective band layer (9).

2. The flameproof electric wire and cable according to claim 1, characterized in that: every the outside of copper core (1) all wraps up insulating layer (2), the material of insulating layer (2) is polyvinyl chloride, insulating layer (2) set up inside filling layer (3).

3. The flameproof electric wire and cable according to claim 1, characterized in that: the heat insulation layer (4) is internally provided with a plurality of crystal fiber yarns which are uniformly distributed along the circumference, the crystal fiber yarns are transversely distributed, and the crystal fiber yarns are in contact connection.

4. The flameproof electric wire and cable according to claim 1, characterized in that: the composite transition layer (5) is a high-strength polyester transmission belt.

5. The flameproof electric wire and cable according to claim 1, characterized in that: the fire-resistant layer (7) is made of fire-resistant mica tape surface filling fire retardant.

6. The flameproof electric wire and cable according to claim 1, characterized in that: the outer protective belt layer (9) is glued on the outer side of the outer protective layer (8), and the outer protective belt layer (9) is made of silicon rubber.