CN215577856U

CN215577856U - Flame-retardant cable

Info

Publication number: CN215577856U
Application number: CN202121103633.7U
Authority: CN
Inventors: 刘涛; 崔倩
Original assignee: Huansheng Kaiyuan Industrial Technology Co ltd
Current assignee: Huansheng Kaiyuan Industrial Technology Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2022-01-18
Anticipated expiration: 2031-05-21

Abstract

The utility model discloses a flame-retardant cable, which relates to the technical field of cables and comprises a protective sleeve and a cable core arranged in the protective sleeve, wherein the protective sleeve at least comprises a waterproof layer and a fireproof coating layer, and a supporting mechanism is also arranged in the protective sleeve; the protective sleeve is used for wrapping the filter element; the supporting mechanism is used for supporting the cable core in the protective sleeve, and the fireproof coating layer is made of a tertiary acrylic emulsion water-based material and a fireproof flame retardant. According to the utility model, the cable has a certain flame retardant effect through the fireproof coating layer in the protective sleeve, the cable can be used in water without causing short circuit through the waterproof layer in the protective sleeve, and the cable cores can be separated by the supporting piece in the protective sleeve, so that the short circuit caused by the fact that the cable cores are exposed due to contact friction between the cable cores can be avoided, the supporting function on the protective sleeve can be played, the cable has better compression resistance, and the using effect is better.

Description

Flame-retardant cable

Technical Field

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

Background

The cable is made of one or more mutually insulated conductors and an outer insulating protection layer, is a wire for transmitting power or information from one place to another place, is one of indispensable accessories of an urban power system, and has service performance related to electricity safety.

At present, along with the development of scientific and technological, also higher and higher to the requirement of cable, the better quality, the better cable of performance can become people's first choice undoubtedly, and the cable that possesses certain fire resistance can avoid in the conflagration impaired, and the technique of cable is not enough to accomplish fine fire-retardant, fire prevention dampproofing in the present market, this has just greatly increased the potential safety hazard, consequently, need design a flame retarded cable to solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to solve the defects in the prior art and provides a flame-retardant cable.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a flame-retardant cable comprises a protective sleeve and a cable core arranged in the protective sleeve, wherein the protective sleeve at least comprises a waterproof layer and a fireproof coating layer, and a supporting mechanism is also arranged in the protective sleeve;

the protective sleeve is used for wrapping the filter element;

and the supporting mechanism is used for supporting the cable core in the protective sleeve.

As a still further scheme of the utility model: the fireproof coating layer is prepared by adding a fireproof flame retardant into a tertiary acrylic emulsion water-based material.

As a still further scheme of the utility model: the waterproof layer is located the inboard of fireproof paint layer, the waterproof layer adopts water-swelling rubber to make.

As a still further scheme of the utility model: the protective sheath still includes wearing layer, insulating layer and woven shield layer, the wearing layer is located the outside of fireproof coating layer, the insulating layer is located between woven shield layer and the waterproof layer.

As a still further scheme of the utility model: and the inside of the braided shielding layer is also provided with fibers which are distributed annularly at equal intervals.

As a still further scheme of the utility model: the supporting mechanism comprises a supporting piece, the supporting piece is arranged in the braided shielding layer, and a clamping groove matched with the cable core is formed in the supporting piece.

As a still further scheme of the utility model: and an insulating sleeve is arranged on the outer side of the cable core and is made of polyolefin materials.

As a still further scheme of the utility model: the outer wall of the supporting piece is fixedly connected with limiting cylinders which are distributed in an annular shape at equal intervals, and the limiting cylinders are matched with the adjacent limiting rods on the supporting piece.

As a still further scheme of the utility model: the inner wall of the braided shielding layer is further provided with rubber blocks which are distributed annularly at equal intervals, the outer walls of the rubber blocks and the outer wall of the cable core are attached to each other, a cavity is formed in the rubber blocks, and a spring is arranged in the cavity.

The utility model has the beneficial effects that:

according to the flame-retardant cable provided by the utility model, the cable has a certain flame-retardant effect through the fireproof coating layer in the protective sleeve, the cable can be used in water without causing short circuit through the waterproof layer in the protective sleeve, the cable cores can be separated through the supporting piece in the protective sleeve, short circuit caused by exposure of the cable cores due to contact friction between the cable cores can be avoided, the supporting effect on the protective sleeve can be achieved, the cable has better compression resistance, and the using effect is better.

Drawings

Fig. 1 is a schematic cross-sectional view of a flame retardant cable according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic structural diagram of a support member of a flame retardant cable according to an embodiment of the present invention.

In the figure: 1 wear-resistant layer, 2 fireproof coating layers, 3 cable cores, 4 waterproof layers, 5 supporting pieces, 6 heat-insulating layers, 7 insulating sleeves, 8 limiting cylinders, 9 braided shielding layers, 10 fiber yarns, 11 rubber blocks, 12 cavities, 13 springs and 14 limiting rods.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Reference will now be made in detail to implementations of the present invention with reference to specific embodiments, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

As shown in fig. 1, a flame retardant cable provided for an embodiment of the present invention includes a protective sheath and a cable core 3 disposed in the protective sheath, the protective sheath at least includes a waterproof layer 4 and a fireproof paint layer 2, and a supporting mechanism is further disposed in the protective sheath;

the protective sleeve is used for wrapping the filter element;

and the supporting mechanism is used for supporting the cable core 3 in the protective sleeve.

Through the fireproof coating layer 2 in the protective sleeve, make the cable possess certain flame retardant efficiency, waterproof layer 4 in the protective sleeve, make the cable can use and can not cause the short circuit in aqueous, and support piece 5 in the protective sleeve can also separate cable core 3, not only can avoid leading to cable core 3 to expose and cause the short circuit because of contact friction between the cable core 3, can also play the supporting role to the protective sleeve, make the cable possess better compressive property, excellent in use effect.

As an embodiment of the utility model, the fireproof coating layer 2 is made of a tertiary acrylic emulsion water-based material and a fireproof flame retardant, so that the cable can bear long-time combustion, cannot be damaged and has a better flame retardant effect.

Referring to fig. 1 and 2, as an embodiment of the present invention, a waterproof layer 4 is located on the inner side of the fireproof paint layer 2, and the waterproof layer 4 is made of water-swellable rubber, so that when the cable is damaged due to long-term use, water mist enters the cable and contacts with the water-swellable rubber, so that the damaged part is repaired by swelling of the water-swellable rubber, and the service life of the cable can be further prolonged.

As an embodiment of the present invention, please refer to fig. 1 and 2, the protective sheath further includes a wear-resistant layer 1, a thermal-insulating layer 6 and a braided shielding layer 9, the wear-resistant layer 1 is located outside the fireproof coating layer 2, the thermal-insulating layer 6 is located between the braided shielding layer 9 and the waterproof layer 4, the wear-resistant layer 1 makes the cable more durable, the thermal-insulating layer 6 can prevent heat energy generated in the power transmission process from being dissipated outwards, and the braided shielding layer 9 can improve flexibility of the cable and prevent the cable from being damaged.

Referring to fig. 2, as an embodiment of the present invention, the fiber filaments 10 are disposed inside the braided shielding layer 9 and distributed in an annular shape at equal intervals, so that the strength of the braided shielding layer 9 can be improved, and the braided shielding layer 9 is not easily damaged when the cable is under pressure.

As an embodiment of the present invention, please refer to fig. 1 and fig. 3, the supporting mechanism includes a supporting member 5, the supporting member 5 is disposed in the braided shielding layer 9, and a clamping groove matched with the cable core 3 is formed on the supporting member 5, so that the cable core 3 can be separated, which not only can prevent the cable core 3 from being exposed due to contact friction between the cable cores 3 to cause short circuit, but also can support the protective sheath, so that the cable has better compression resistance.

Referring to fig. 1, as an embodiment of the present invention, an insulating sleeve 7 is disposed outside a cable core 3, and the insulating sleeve 7 is made of a polyolefin material, so that when the cable is bent to a large degree, short circuit caused by contact of the cable core 3 can be avoided.

Referring to fig. 3, as an embodiment of the present invention, the outer wall of the supporting member 5 is fixedly connected with the limiting cylinders 8 distributed in an annular shape at equal intervals, and the limiting cylinders 8 are matched with the limiting rods 14 on the adjacent supporting members 5, so that when the limiting rods 14 can be inserted into the limiting cylinders 8, the limiting function on the supporting members 5 is achieved, and the supporting members 5 can be prevented from shifting when the cable is under pressure.

As an embodiment of the present invention, please refer to fig. 1 and 2, the inner wall of the braided shielding layer 9 is further provided with rubber blocks 11 distributed annularly at equal intervals, the outer wall of the rubber block 11 is attached to the outer wall of the cable core 3, a cavity 12 is arranged inside the rubber block 11, and a spring 13 is arranged inside the cavity 12, so that the rubber block 11 and the spring 13 having certain elasticity can play a certain buffering role during transportation and transportation of the cable, thereby preventing the cable core 3 inside from being worn when the cable is impacted, and providing a better use effect.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The flame-retardant cable is characterized by comprising a protective sleeve and a cable core arranged in the protective sleeve, wherein the protective sleeve at least comprises a waterproof layer and a fireproof coating layer, and a supporting mechanism is also arranged in the protective sleeve;

the protective sleeve is used for wrapping the filter element;

2. The flame-retardant cable according to claim 1, wherein the flame-retardant coating layer is made of a tertiary acrylic emulsion aqueous material with a flame retardant.

3. The flame retardant cable of claim 2 wherein said water barrier layer is located on the inside of the layer of flame retardant coating, said water barrier layer being made of water-swellable rubber.

4. The flame retardant cable of claim 3 wherein the protective jacket further comprises a wear layer, a thermal insulating layer and a braided shield layer, the wear layer being located outside the layer of flame retardant coating, the thermal insulating layer being located between the braided shield layer and the waterproof layer.

5. A fire retardant cable according to claim 4, wherein said braided shield is further provided with equally spaced filaments circumferentially disposed therein.

6. The flame-retardant cable according to claim 5, wherein the supporting mechanism comprises a supporting member, the supporting member is disposed in the braided shielding layer, and a slot matched with the cable core is formed in the supporting member.

7. The flame-retardant cable according to claim 6, wherein an insulating sleeve is arranged on the outer side of the cable core, and the insulating sleeve is made of polyolefin materials.

8. The flame-retardant cable according to claim 7, wherein the outer wall of the supporting member is fixedly connected with limiting cylinders which are equidistantly distributed in a ring shape, and the limiting cylinders are matched with limiting rods on adjacent supporting members.

9. The flame-retardant cable according to claim 8, wherein the inner wall of the braided shielding layer is further provided with rubber blocks which are distributed in an annular shape at equal intervals, the outer wall of each rubber block is attached to the outer wall of the cable core, a cavity is arranged inside each rubber block, and a spring is arranged inside each cavity.