CN215868787U

CN215868787U - High-reliability composite cable

Info

Publication number: CN215868787U
Application number: CN202121942037.8U
Authority: CN
Inventors: 赵志华
Original assignee: Zhengzhou Zhongzhou Cable And Wire Co ltd
Current assignee: Zhengzhou Zhongzhou Cable And Wire Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-02-18
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a high-reliability composite cable which comprises a power line and an outer protective sleeve, wherein a double-sided plastic-coated steel belt is installed on the inner wall of the outer protective sleeve, an insulating belt is arranged on the inner wall of the double-sided plastic-coated steel belt, a power line is arranged inside the insulating belt, a thin-wall rubber sleeve is arranged on the outer side of the power line and located inside the insulating belt, and sodium bicarbonate crystals are filled inside the thin-wall rubber sleeve. Has the advantages that: the utility model adopts the thin-wall rubber sleeve and the sodium bicarbonate crystal, the sodium bicarbonate crystal is filled in the thin-wall rubber sleeve and is arranged in the insulating tape together with the power line and the optical fiber, when the short-circuit power line is ignited, the thin-wall rubber sleeve is melted at high temperature, the sodium bicarbonate crystal is heated and rapidly decomposed to form carbon dioxide and sodium carbonate which is not easy to burn, and air is isolated, so that the further spread of fire is avoided, the ignition phenomenon caused by short circuit is avoided, the use is safer and more reliable, and the use reliability is improved.

Description

High-reliability composite cable

Technical Field

The utility model relates to the technical field of cable production, in particular to a high-reliability composite cable.

Background

The cable is an electric energy or signal transmission device, usually by several or several group's wires constitute, it has optic fibre to generally add in traditional composite cable, be used for conducting network signal, traditional composite cable includes power cord and optic fibre, wherein still include structures such as filling rope and reinforcing wire, be used for gaining in strength, avoid the optic fibre rupture, however, the inside fire prevention measure that does not have of traditional power cord, in case take place the power cord short circuit and catch fire, the intensity of a fire can spread fast, thereby cause danger, use safe and reliable inadequately, in addition, traditional reinforcing wire sets up alone, outside parcel isolation layer not, after the power cord short circuit catches fire, form the secondary short circuit with reinforcing wire overlap joint very easily, cause danger, also can further make the improvement.

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

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a high-reliability composite cable which has the advantages of high safety and reliability, and further solves the problems in the background art.

(II) technical scheme

In order to realize the advantages of high safety and reliability, the utility model adopts the following specific technical scheme:

the utility model provides a high reliability composite cable, includes power cord and outer protective sheath, outer protective sheath inner wall is installed two-sidedly and is covered the plastic steel band, and two-sidedly covers the plastic steel band inner wall and be provided with the insulating tape to the inside power cord that is provided with of insulating tape, the power cord outside is located the inside thin wall rubber sleeve that is provided with of insulating tape, and the inside packing of thin wall rubber sleeve has the sodium bicarbonate crystal, the inside optic fibre that is provided with of insulating tape.

Furthermore, the central position in the insulating tape is provided with a reinforcing metal wire, the outer wall of the reinforcing metal wire is sleeved with an insulating sleeve, and the outer wall of the insulating sleeve is sleeved with a halogenated butyl rubber sleeve.

Furthermore, the inner part of the insulating belt is positioned between the thin-wall rubber sleeves and is provided with a filling rope, and the filling rope is made of high-strength glass fiber.

Furthermore, the thin-wall rubber sleeve power line, the optical fiber and the filling rope are distributed at intervals, and four thin-wall rubber sleeves are arranged.

Furthermore, the thickness of the thin-wall rubber sleeve is not more than 1mm, and the length of the thin-wall rubber sleeve is the same as that of the power line.

Furthermore, sealing structures are arranged at two ends of the thin-wall rubber sleeve, and the diameter of the thin-wall rubber sleeve is larger than the diameter of the power line.

Further, the thickness of the halogenated butyl rubber sleeve is not less than 1 mm.

Further, the outer protective sleeve is made of polyethylene.

(III) advantageous effects

Compared with the prior art, the utility model provides a high-reliability composite cable, which has the following beneficial effects:

(1) the utility model adopts the thin-wall rubber sleeve and the sodium bicarbonate crystal, the sodium bicarbonate crystal is filled in the thin-wall rubber sleeve and is arranged in the insulating tape together with the power line and the optical fiber, when the short-circuit power line is on fire, the thin-wall rubber sleeve is melted at high temperature, the sodium bicarbonate crystal is heated and rapidly decomposed to form carbon dioxide and sodium carbonate which is not easy to burn, and air is isolated, so that the further spread of the fire is avoided, the fire phenomenon caused by short circuit is avoided, the use is safer and more reliable, and the use reliability is improved.

(2) The insulating sleeve and the halogenated butyl rubber sleeve are adopted, the insulating sleeve is sleeved on the outer surface of the reinforcing metal wire, meanwhile, the halogenated butyl rubber sleeve is sleeved on the outer side of the insulating sleeve, the halogenated butyl rubber sleeve has high temperature resistance, and the reinforcing metal wire is prevented from being exposed due to melting when a power line is short-circuited and ignited, so that a new short-circuit point is prevented from being formed by overlapping the power line and the reinforcing metal wire, the use safety of the device is further improved, and the use reliability is further improved.

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 cross-sectional view of a high reliability composite cable according to the present invention;

fig. 2 is a schematic structural diagram of a high-reliability composite cable according to the present invention;

fig. 3 is a schematic structural view of a reinforcing wire according to the present invention.

In the figure:

1. an outer protective sheath; 2. coating plastic steel strips on two sides; 3. an insulating tape; 4. a power line; 5. a thin-wall rubber sleeve; 6. sodium bicarbonate crystals; 7. an optical fiber; 8. a reinforcing wire; 9. an insulating sleeve; 10. a halogenated butyl rubber sleeve; 11. and (6) filling the ropes.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to an embodiment of the present invention, a high reliability composite cable is provided.

The present invention will be further described with reference to the accompanying drawings and specific embodiments, as shown in fig. 1 to 3, a high-reliability composite cable according to an embodiment of the present invention includes a power line 4 and an outer protective sheath 1, a double-sided plastic-coated steel strip 2 is installed on an inner wall of the outer protective sheath 1, an insulating strip 3 is installed on an inner wall of the double-sided plastic-coated steel strip 2, and a power line 4 is installed inside the insulating strip 3, which are common structures in the art and not described herein, a thin-walled rubber sleeve 5 is installed inside the insulating strip 3 outside the power line 4, a sodium bicarbonate crystal 6 is filled inside the thin-walled rubber sleeve 5, an optical fiber 7 is installed inside the insulating strip 3, a sodium bicarbonate crystal 6 is filled in the thin-walled rubber sleeve 5, and is installed inside the insulating strip 3 together with the power line 4 and the optical fiber 7, when a short circuit occurs in the power line 4, the thin-walled rubber sleeve 5 is melted at a high temperature, and the sodium bicarbonate crystal 6 is heated, the sodium bicarbonate crystal 6 is heated and quickly decomposed to form carbon dioxide and sodium carbonate which is not easy to burn, so that air is isolated, further spread of fire is avoided, the fire phenomenon caused by short circuit is avoided, the use is safer and more reliable, and the use reliability is improved.

In one embodiment, the inside central point of insulating zone 3 puts and is provided with and strengthens wire 8, and strengthens 8 outer walls of wire and cup jointed insulating cover 9, and insulating cover 9 outer walls cup jointed halogenated butyl rubber cover 10, halogenated butyl rubber cover 10 has higher high temperature resistance, melt when avoiding power cord 4 short circuit to catch fire and expose and strengthen wire 8, thereby avoid power cord 4 and the 8 overlap joints of strengthening wire to form new short circuit point, and then further improved the security that this device used, further improved the reliability of using.

In one embodiment, the filling rope 11 is arranged inside the insulating tape 3 and between the thin-wall rubber sleeves 5, and the filling rope 11 is made of high-strength glass fiber, so that the insulating tape has high-temperature resistance and is prevented from being ignited by fire.

In one embodiment, the thin-wall rubber sleeve 5 is provided with four power lines 4, optical fibers 7 and filling ropes 11 which are distributed at intervals, so that the distribution uniformity is improved.

In one embodiment, the thickness of the thin-wall rubber sleeve 5 is not more than 1mm, so that the thin-wall rubber sleeve can be heated to melt and expose the sodium bicarbonate crystals 6 quickly, and the length of the thin-wall rubber sleeve 5 is the same as that of the power line 4, so that the fire resistance comprehensiveness is improved.

In one embodiment, two ends of the thin-wall rubber sleeve 5 are sealed structures to avoid leakage of the sodium bicarbonate crystals 6, and the diameter of the thin-wall rubber sleeve 5 is larger than the wire diameter of the power wire 4 to improve the storage capacity of the sodium bicarbonate crystals 6.

In one embodiment, the halogenated butyl rubber sleeve 10 has a thickness of not less than 1mm, which improves high temperature resistance.

In one embodiment, the outer protective sleeve 1 is made of polyethylene, which is a common insulating material, and will not be described herein in detail.

The working principle is as follows:

sodium bicarbonate crystals 6 are filled in the thin-wall rubber sleeve 5, are arranged inside the insulating tape 3 together with the power line 4 and the optical fiber 7, when the short circuit power cord 4 is on fire, the thin-wall rubber sleeve 5 is melted at high temperature, the sodium bicarbonate crystal 6 is heated and rapidly decomposed to form carbon dioxide and sodium carbonate which is not easy to burn, air is isolated, thereby avoiding the further spread of the fire, avoiding the fire phenomenon caused by short circuit, having safer and more reliable use, thereby improving the reliability of use, simultaneously, the halogenated butyl rubber sleeve 10 has higher high temperature resistance, and prevents the power cord 4 from melting and exposing the reinforced metal wire 8 when the power cord is short-circuited and is on fire, thereby preventing the power cord 4 and the reinforced metal wire 8 from overlapping to form a new short-circuit point, and further improve the security of this device use, further improved the reliability of use.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a high reliability composite cable, its characterized in that, includes power cord (4) and outer protective sheath (1), outer protective sheath (1) inner wall is installed two-sided and is covered and mould steel band (2), and two-sided cover moulds steel band (2) inner wall and be provided with insulated tape (3) to insulated tape (3) inside is provided with power cord (4), power cord (4) outside is located insulated tape (3) inside and is provided with thin wall rubber sleeve (5), and thin wall rubber sleeve (5) inside packing has sodium bicarbonate crystal (6), insulated tape (3) inside is provided with optic fibre (7).

2. The high-reliability composite cable according to claim 1, wherein a reinforcing metal wire (8) is arranged at the central position inside the insulating tape (3), an insulating sleeve (9) is sleeved on the outer wall of the reinforcing metal wire (8), and a halogenated butyl rubber sleeve (10) is sleeved on the outer wall of the insulating sleeve (9).

3. A high reliability composite cable according to claim 1, wherein the inside of the insulating tape (3) between the thin-walled rubber sleeves (5) is provided with a filling rope (11), and the filling rope (11) is made of high strength glass fiber.

4. The high-reliability composite cable according to claim 1, wherein the thin-wall rubber sleeve (5) comprises power lines (4), optical fibers (7) and filling ropes (11) which are distributed at intervals, and four thin-wall rubber sleeves (5) are arranged.

5. A highly reliable composite cable according to claim 1, characterized in that the thin-walled rubber sheath (5) has a thickness of not more than 1mm and the length of the thin-walled rubber sheath (5) is the same as the length of the power supply line (4).

6. The high-reliability composite cable according to claim 1, wherein sealing structures are arranged at two ends of the thin-wall rubber sleeve (5), and the diameter of the thin-wall rubber sleeve (5) is larger than the wire diameter of the power wire (4).

7. A high reliability composite cable according to claim 2, wherein said halogenated butyl rubber sheath (10) has a thickness not less than 1 mm.

8. A high reliability composite cable according to claim 1, wherein said outer protective sheath (1) is of polyethylene.