CN215007588U

CN215007588U - Fire-resistant and wear-resistant flat cable

Info

Publication number: CN215007588U
Application number: CN202121049779.8U
Authority: CN
Inventors: 徐锦卫
Original assignee: Shanghai Qianheng Electric Co ltd
Current assignee: Shanghai Qianheng Electric Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-12-03
Anticipated expiration: 2031-05-17

Abstract

The utility model discloses a fire-resistant and wear-resistant flat cable, which comprises a halogen-free polyurethane sheath, wherein four ceramic polyolefin insulating sleeves are fixedly arranged in the halogen-free polyurethane sheath, and composite conductors are arranged in the four ceramic polyolefin insulating sleeves; the halogen-free polyurethane sheath is sleeved with a buffer mechanism and a protection mechanism. The utility model discloses a set up and have had steamed polyurethane sheath, ceramic polyolefin insulation cover, composite conductor, overcome traditional mica tape after the fever crisp, drop easily, the poor characteristics of fire-resistant effect, the safe noncongestion of guarantee cable under the conflagration condition, the structural design of flat shape simultaneously, the bending resistance can be better.

Description

Fire-resistant and wear-resistant flat cable

Technical Field

The utility model relates to a cable field especially relates to a fire-resistant wear-resisting flat cable.

Background

Cables are generally rope-like cables made by stranding several wires or groups of wires, each group insulated from the other and often twisted around a center, the entire outer surface being covered with a highly insulating covering. The device is erected in the air or installed underground or underwater for telecommunication or power transmission.

When the electric wire and the cable are burnt, the basic functions cannot be maintained, the circuit is short-circuited, and secondary disasters are caused. According to researches, the polymer in the ceramic polyolefin is burned and decomposed to generate gas under the high-temperature condition, meanwhile, the fluxing agent forms a fluid body to react with the ceramic forming agent, the volume is rapidly expanded, holes are formed, a support body with certain strength is formed, and the burned residues surround the holes to form a ceramic body structure, so that the ceramic polyolefin can resist the external pressure and effectively prevent the fire from spreading to the interior of the material.

However, the following disadvantages exist in the use of the common cable:

first, the fire and bending resistance properties are poor;

secondly, after the cable is laid, the cable often can receive impact and collision of different degrees because of external environment, and stress concentration can be formed at the inside center of cable for form violent rigid extrusion between the cable core, long-term in the past, can cause the damage to the cable core, reduce the life of cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-resistant wear-resisting flat cable to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize:

a fire-resistant and wear-resistant flat cable comprises a halogen-free polyurethane sheath, wherein four ceramic polyolefin insulating sleeves are fixedly arranged in the halogen-free polyurethane sheath, and composite conductors are arranged in the four ceramic polyolefin insulating sleeves; the halogen-free polyurethane sheath is sleeved with a buffer mechanism and a protection mechanism.

Preferably, the thickness of the ceramic polyolefin insulating sleeve is 1-1.2mm, and the thickness of the halogen-free polyurethane sheath is 8-9 mm.

Preferably, the buffer mechanism comprises a rubber layer, the rubber layer is sleeved on the halogen-free polyurethane sheath, the inner surface of the rubber layer is fixedly connected with a plurality of springs, the other ends of the springs are fixedly connected with gaskets, and the gaskets are fixedly connected with the outer surface of the halogen-free polyurethane sheath.

Preferably, the protection mechanism comprises a fireproof layer, a protection layer and a metal mesh layer, the fireproof layer is fixedly sleeved on the rubber layer, the protection layer is fixedly sleeved on the fireproof layer, and the metal mesh layer is embedded in the protection layer.

Preferably, the protective layer is made of PVC material, and the fireproof layer is made of fireproof daub material.

Preferably, the metal mesh layer is composed of a plurality of steel wire ropes, and the thickness of the metal mesh layer is 1-1.5 mm.

The utility model has the advantages that:

1. the utility model discloses a set up and have had steamed polyurethane sheath, ceramic polyolefin insulation cover, composite conductor, overcome traditional mica tape after the fever crisp, drop easily, the poor characteristics of fire-resistant effect, the safe noncongestion of guarantee cable under the conflagration condition, the structural design of flat shape simultaneously, the bending resistance can be better.

2. The utility model provides a certain buffer effect by arranging the buffer mechanism, thereby avoiding the damage of the cable caused by the external impact and increasing the durability of the cable; and through setting up protection machanism, improved the utility model discloses a fire resistance and wear resistance.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1 according to the present invention;

FIG. 3 is a schematic structural view of the halogen-free polyurethane sheath, the ceramic polyolefin insulating sheath, and the composite conductor of the present invention;

reference numerals: 1. a halogen-free polyurethane sheath; 2. a ceramic polyolefin insulating sleeve; 3. a composite conductor; 4. a buffer mechanism; 41. a rubber layer; 42. a gasket; 43. a spring; 5. a fire barrier layer; 6. a protective layer; 7. and a metal mesh layer.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1 and 3, a fire-resistant and wear-resistant flat cable comprises a halogen-free polyurethane sheath 1, wherein four ceramic polyolefin insulating sleeves 2 are fixedly arranged in the halogen-free polyurethane sheath 1, and composite conductors 3 are arranged in the four ceramic polyolefin insulating sleeves 2; the thickness of the ceramic polyolefin insulating sleeve 2 is 1-1.2mm, the thickness of the halogen-free polyurethane sheath 1 is 8-9mm, one of the four ceramic polyolefin insulating sleeves 2 is yellow-green, and the other three ceramic polyolefin insulating sleeves 2 are black;

in the cable, the composite conductor 3 is a composite twisted conductor, and aramid yarns are added during twisting, so that the bending resistance of the conductor is greatly improved; the ceramic polyolefin insulating sleeve 2 adopts an irradiation crosslinking type ceramic polyolefin material, overcomes the defects of brittleness, easy shedding and poor fire resistance effect of the traditional mica tape after burning, and ensures the safety and smoothness of the cable under the condition of fire; the halogen-free polyurethane sheath 1 is added with the environment-friendly natural capsaicin rat repellent and pyrethrin termite repellent, so that the rat and termite resistance of the cable is improved; and the ceramic polyolefin insulating sleeve 2 and the halogen-free polyurethane sheath 1 both adopt halogen-free flame retardant formulas, so that the environmental pollution in the production and use processes is reduced. Therefore, the cable has good fire resistance, and meanwhile, the flat structural design and the bending resistance are better.

Example 2

As shown in fig. 1 to 2, in the case where the other parts are the same as those of embodiment 1, this embodiment is different from embodiment 1 in that: the halogen-free polyurethane sheath 1 is sleeved with a buffer mechanism 4 and a protection mechanism; the buffer mechanism 4 comprises a rubber layer 41, the rubber layer 41 is sleeved on the halogen-free polyurethane sheath 1, a plurality of springs 43 are fixedly connected to the inner surface of the rubber layer 41, gaskets 42 are fixedly connected to the other ends of the springs 43, and the gaskets 42 are fixedly connected to the outer surface of the halogen-free polyurethane sheath 1. The protection mechanism comprises a fireproof layer 5, a protection layer 6 and a metal mesh layer 7, wherein the fireproof layer 5 is fixedly sleeved on the rubber layer 41, the protection layer 6 is fixedly sleeved on the fireproof layer 5, and the metal mesh layer 7 is embedded in the protection layer 6. The protective layer 6 is made of PVC material, and the fireproof layer 5 is made of fireproof daub material. The metal mesh layer 7 is composed of a plurality of steel wire ropes, and the thickness of the metal mesh layer 7 is 1-1.5 mm.

When the cable is used specifically, the elastic rubber layer 41, the gasket 42 and the spring 43 are arranged, so that a certain buffering effect can be provided for the cable, the cable can be prevented from being damaged due to external impact, and the durability of the cable is improved; and through setting up metal mesh layer 7, increased the intensity of this cable, through setting up flame retardant coating 5, inoxidizing coating 6, further improved the fire resistance and the wear resistance of this cable.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fire-resistant wear-resisting flat cable, includes halogen-free polyurethane sheath (1), its characterized in that: four ceramic polyolefin insulating sleeves (2) are fixedly arranged in the halogen-free polyurethane sheath (1), and composite conductors (3) are arranged in the four ceramic polyolefin insulating sleeves (2); the halogen-free polyurethane sheath (1) is sleeved with a buffer mechanism (4) and a protection mechanism.

2. The fire-resistant and abrasion-resistant flat cable according to claim 1, wherein: the thickness of the ceramic polyolefin insulating sleeve (2) is 1-1.2mm, and the thickness of the halogen-free polyurethane sheath (1) is 8-9 mm.

3. The fire-resistant and abrasion-resistant flat cable according to claim 1, wherein: buffer gear (4) include rubber layer (41), rubber layer (41) cover is established on halogen-free polyurethane sheath (1), a plurality of springs of fixedly connected with (43), a plurality of on the internal surface of rubber layer (41) the other end of spring (43) all fixedly connected with gasket (42), a plurality of gasket (42) all with the outer fixed surface of halogen-free polyurethane sheath (1) be connected.

4. The fire-resistant and abrasion-resistant flat cable according to claim 1, wherein: the protection mechanism comprises a fireproof layer (5), an protective layer (6) and a metal net layer (7), wherein the fireproof layer (5) is fixedly sleeved on the rubber layer (41), the protective layer (6) is fixedly sleeved on the fireproof layer (5), and the metal net layer (7) is embedded in the protective layer (6).

5. The fire-resistant and wear-resistant flat cable according to claim 4, wherein: the protective layer (6) is made of PVC materials, and the fireproof layer (5) is made of fireproof mortar materials.

6. The fire-resistant and wear-resistant flat cable according to claim 4, wherein: the metal mesh layer (7) is composed of a plurality of steel wire ropes, and the thickness of the metal mesh layer (7) is 1-1.5 mm.