CN110634606B

CN110634606B - Composite cable

Info

Publication number: CN110634606B
Application number: CN201910932799.0A
Authority: CN
Inventors: 俞天舜
Original assignee: Foshan Global Eagle Cable Co ltd
Current assignee: Foshan global Eagle Cable Co.,Ltd.
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2021-04-16
Anticipated expiration: 2039-09-29
Also published as: CN110634606A

Abstract

The invention discloses a composite cable, which comprises an outer tegument consisting of more than one arc-shaped splicing parts, wherein each splicing surface of the adjacent arc-shaped splicing parts is provided with a containing cavity, each containing cavity is internally provided with a soft protective layer, two sides of each soft protective layer are respectively embedded into the arc-shaped splicing parts and fixed by glue, the adjacent arc-shaped splicing parts are spliced with each other, the middle of the outer tegument is provided with an installation cavity, a cable core wire is installed in the installation cavity, more than one fixed shaft sleeve is convexly arranged outside the outer protective layer of the cable core wire, and a spring is inserted into each fixed shaft sleeve. The invention is particularly suitable for being applied in a cable well, particularly suitable for a dense area for cable arrangement, can effectively utilize elasticity to extinguish a fire source, can enable the outer tegument layer to be far away from the inner core wire when encountering flames outside, increases the fireproof performance of the core wire, and increases the fireproof time of the core wire.

Description

Composite cable

Technical Field

The invention relates to a cable, in particular to a composite cable.

Background

Often laid a large amount of cables in the cable shaft, these cables concentrate to lay and can produce a large amount of heats, in case one of them cable is because the short circuit or when external reasons such as overheated spontaneous combustion, can lead to the transmission of flame, just so can lead to other not lighted cables to be lighted, lead to a large amount of cable core wires to be lighted, and then cause serious economic loss, and the interval between cable tegument and the inside core wire is little, in case tegument is lighted, inside core wire also can be because the distance is close and the temperature promotes fast, and then destroy inside core wire fast, lead to outside after tegument damages, the fire resistance greatly reduced of core wire, fire resistance is not enough.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a composite cable, which can rapidly bounce the outer tegument by using the rebound force of a spring, further extinguish flames on other cables or extinguishes flames carried outside the composite cable by using the rebound force, achieve the purpose of fire extinguishing, simultaneously improve the distance between the outer tegument and the inner core wire, and improve the fire-resistant time of the inner core wire.

The invention is realized by the following technical scheme: the utility model provides a composite cable, outer tegillum including the constitution of more than one arc concatenation portion, all set up one on the concatenation face of adjacent arc concatenation portion and hold the chamber, it all is provided with a soft inoxidizing coating to hold the intracavity, the both sides of soft inoxidizing coating imbed respectively and set up in the arc concatenation portion and beat the glue fixed, splice mutually between the adjacent arc concatenation portion, an installation cavity has in the middle of the outer tegillum, install the cable conductor in the installation cavity, the outside protrusion of outer protective layer of cable conductor is provided with more than one fixed axle sleeve, all insert in the fixed axle sleeve and set up a spring, the spring stretches out in the outside of fixed axle sleeve and connects a magnetism portion of inhaling, the fixed connecting rod of the other end of magnetism portion of inhaling, the other end of connecting rod inserts in arc concatenation portion fixedly, magnetism portion of inhaling is fixed and makes.

As the preferred technical scheme, the magnetic structure comprises a magnetic part and a metal sheet, wherein the metal sheet is embedded in the top end face of the fixed shaft sleeve, and the magnetic part and the metal sheet are fixed in a suction mode.

As the preferred technical scheme, the magnetic part adopts a magnet block which adopts a neodymium iron boron magnet.

Preferably, the attractive force of the magnetic structure is greater than the elastic force of the compressed spring.

As an optimized technical scheme, the soft protection layer comprises a heat insulation cotton layer and an aluminum foil layer, the aluminum foil layer is bonded on the outer side surface of the heat insulation surface layer, the thickness of the whole soft protection layer is 1-2mm, and the whole soft protection layer is arranged in a containing cavity formed by two adjacent arc splicing parts in a twisting mode.

As the preferred technical scheme, one end of the spring is inserted into a fixed shaft hole in the fixed shaft sleeve and is fixedly bonded with the bottom surface of the fixed shaft hole, and the other end of the spring is fixedly bonded with the end surface of the magnetic suction part by glue.

As the preferred technical scheme, the lateral surface of arc concatenation portion all scribbles one deck fire prevention paint layer, fixed axle sleeve sets up along the length direction equidistance of cable conductor, and each connecting rod all adopts elastic rubber pole.

As a preferable technical scheme, the metal sheets are all in an O shape.

The invention has the beneficial effects that: the invention is particularly suitable for being applied in a cable well, particularly suitable for a dense area for cable arrangement, and can effectively utilize elasticity to extinguish a fire source; when the outer layer is flicked, the inner space becomes large, so that the outer layer can be far away from the inner core wire when encountering flame from the outside, the fireproof performance of the core wire is increased, and the fireproof time of the core wire is increased.

Drawings

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

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic structural view of the present invention in a use state;

fig. 3 is an end view of the fixed bushing.

Detailed Description

As shown in fig. 1, the composite cable comprises more than one outer tegument composed of more than one arc splicing parts 2, a containing cavity 3 is formed on the splicing surface of each adjacent arc splicing part 2, a soft protection layer 4 is arranged in each containing cavity 3, two sides of each soft protection layer 4 are embedded into the corresponding arc splicing parts 2 respectively and are fixed by glue, the adjacent arc splicing parts 2 are spliced mutually, an installation cavity 9 is formed in the middle of each outer tegument, a cable core wire 7 is installed in the installation cavity 9, more than one fixed shaft sleeve 6 is arranged outside the outer protection layer 8 of the cable core wire 7 in a protruding mode, a spring 11 is arranged in each fixed shaft sleeve 6 in an inserted mode, the spring 11 extends out of the fixed shaft sleeve 6 and is connected with a magnetic suction part 5, a connecting rod 1 is fixed at the other end of the magnetic suction part 5, the other end of the connecting rod 1 is fixed in the arc splicing parts 2 in an inserted mode, and the magnetic suction part 5 and the end surface of the fixed shaft sleeve.

In this embodiment, the magnetic structure includes a magnetic portion 5 and a metal sheet 62, the metal sheet 62 is embedded in the top end surface of the fixed shaft sleeve 6, the magnetic portion 5 and the metal sheet 62 are fixed, and the magnetic portion 5 is a magnet block using ndfeb magnet. When the outside has flame and the temperature is very high, because neodymium iron boron magnet's characteristic, reach the certain degree after the temperature, the magnet piece loses magnetic force, this moment magnetism portion of inhaling separates with the sheetmetal, originally, inhale the portion of inhaling by magnetism and impress in fixed axle sleeve inside spring and pop out fast this moment, because the connecting rod is connected to the spring other end, the outer tegillum can pop out fast, as shown in figure 2, pop out the in-process, if there is flame or when all the other cables have the flame on the outer tegillum, utilize this pop-out power, can extinguish the flame source fast, simultaneously because the volume grow, the event can fill the clearance between the adjacent cable, also can play certain fire behavior, increase whole fire behavior.

In this embodiment, the suction of magnetic structure is greater than the elasticity after the spring 11 compression, thus, magnet and sheetmetal actuation when under normal condition, the spring compression retraction is in fixed axle sleeve, in case outside firing temperature promotes, magnet magnetic force reduces, utilize this principle can pop out outer tegillum fast, increase the distance between outer tegillum and the inside heart yearn, as shown in fig. 2, outer tegillum and the soft protection layer of original distortion are strutted this moment, form a respectively bigger outer tegillum structure, interval grow between outer tegillum and the inside heart yearn like this, distance grow between flame and the heart yearn like this, fire-proof heat-proof is better, heat transfer is slower.

In this embodiment, soft inoxidizing coating 4 is including thermal-insulated cotton layer and aluminium foil layer, and the aluminium foil layer bonds in the lateral surface of thermal-insulated surface course, and the thickness of whole soft inoxidizing coating is at 1-2mm, and its distortion is installed in the intracavity that holds that two adjacent arc concatenation portions are constituteed, utilizes outside aluminium foil layer to increase the fire prevention time, increases thermal-insulated fire behavior through thermal-insulated cotton layer.

In this embodiment, spring 11's one end is inserted in the inside fixed shaft hole 61 of fixed axle sleeve 6 and is fixed with the bonding of fixed shaft hole 61 bottom surface, spring 11's the other end is beaten glue with the terminal surface of magnetism portion of inhaling 5 and is bonded fixedly, the lateral surface of arc concatenation portion 2 all has been scribbled one deck fire prevention paint layer, fixed axle sleeve 6 sets up along the length direction equidistance of cable conductor 7, each connecting rod 1 all adopts the elastic rubber pole, owing to adopt the elastic rubber pole, so can possess better elastic extrusion force, increase the buffer capacity, increase the resistance to compression buffer power of inside heart yearn when using.

As shown in fig. 3, the metal sheets 62 are all in an "O" shape. When the magnetic part is pressed down, the magnetic part can seal the opening end of the outer part of the fixed shaft sleeve, the outer edge of the magnetic part is mutually attracted with the metal sheet, the compression of the spring is completed, and the magnetic part is simple and convenient.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. A composite cable, characterized by: the soft protection layer is arranged in the containing cavities, two sides of the soft protection layer are embedded in the arc splicing parts respectively and are fixed by glue, the adjacent arc splicing parts are spliced mutually, an installation cavity is arranged in the middle of the outer tegument, a cable core wire is installed in the installation cavity, more than one fixed shaft sleeve is arranged outside the outer protection layer of the cable core wire in a protruding mode, a spring is inserted into each fixed shaft sleeve and extends out of each fixed shaft sleeve and is connected with a magnetic suction part, a connecting rod is fixed to the other end of each magnetic suction part, the other end of the connecting rod is inserted into the arc splicing parts and is fixed to the end faces of the magnetic suction parts and the fixed shaft sleeves through magnetic structures, and the spring is pressed into the fixed shaft sleeves;

the magnetic structure comprises a magnetic part and a metal sheet, the metal sheet is embedded in the top end face of the fixed shaft sleeve, and the magnetic part and the metal sheet are fixedly attracted;

the magnetic part adopts a magnet block which adopts a neodymium iron boron magnet;

the suction force of the magnetic structure is greater than the elastic force of the compressed spring;

the soft protective layer comprises a heat insulation cotton layer and an aluminum foil layer, the aluminum foil layer is bonded on the outer side surface of the heat insulation surface layer, the thickness of the whole soft protective layer is 1-2mm, and the whole soft protective layer is arranged in a containing cavity formed by two adjacent arc splicing parts in a twisting mode;

one end of the spring is inserted into a fixed shaft hole in the fixed shaft sleeve and is fixedly bonded with the bottom surface of the fixed shaft hole, and the other end of the spring is fixedly bonded with the end surface of the magnetic suction part by glue;

the outer side surfaces of the arc splicing parts are coated with a fireproof paint layer, the fixed shaft sleeves are arranged at equal intervals along the length direction of a cable core wire, and each connecting rod adopts an elastic rubber rod;

the metal sheets are all in an O shape.