CN208111133U - A kind of fire-proof insulation cable - Google Patents

Abstract

The utility model provides a kind of fire-proof insulation cable, it is related to cable development technique field, a kind of fire-proof insulation cable, including cable and sheath, cable is mutually twisted by the core wire that a pair is coated with insulating layer, cable has clad, the flame-retardant layer for preventing insulating layer from burning is provided between insulating layer and clad, sheath includes the thermal insulation layer for being set to the separation layer of inside and being set to outside, the first instlated tubular, the second instlated tubular and the third instlated tubular for being provided with fixing piece in thermal insulation layer and being fixed on fixing piece.A kind of fire-proof insulation construction of cable of the utility model is simple, and fire protecting performance is good, anti-spontaneous combustion, and guarantees that insulation performance is good in the case of fire.

Description

A kind of fire-proof insulation cable

Technical field

The utility model relates to cable development technique field,

Especially, the utility model relates to a kind of fire-proof insulation cables.

Background technique

Fire refers to disaster caused by out of control burning over time and space.In various disasters, fire is Most frequently, one of public security and the major casualty of social development are most generally threatened.In order to ensure the safety of data, people are just Wish after fire occurs, can after there is time enough to steam again all data before whole network paralysis, and they are shifted To the place of safety, a possibility that data are lost, is preferably minimized.

Existing fireproof cable can only be carried out when there is unsafe condition using the material property of cable itself common anti- Fire, however occur dangerous situation it is to be found when, usually the intensity of a fire has been spread, this may result in rescue cause to hurt not in time Evil.

In addition the internal heat dissipating of existing cable is also poor, is easy to happen spontaneous combustion.

Utility model content

The purpose of this utility model is to provide a kind of structure is simple, fire protecting performance is good, anti-spontaneous combustion, and in the case of fire Guarantee the good fire-proof insulation cable of insulation performance.

It is achieved to solve the above problems, the utility model adopts the following technical solution：

A kind of fire-proof insulation cable, including cable and sheath, the cable are mutual by the core wire that a pair is coated with insulating layer It is twisted, the cable has clad, is provided between the insulating layer and the clad for preventing the insulation The flame-retardant layer of layer burning, the sheath include the thermal insulation layer for being set to the separation layer of inside and being set to outside, the thermal insulation layer In be provided with fixing piece and the first instlated tubular, the second instlated tubular and the third instlated tubular that are fixed on the fixing piece.

Preferably, the quantity of the cable is four.

It is further preferred that being provided with guidance skeleton in the space that four cables surround.

It is further preferred that the flame-retardant layer is fire-retardant liquid layer.

It is further preferred that the fixing piece is Y type part.

It is further preferred that it is arc that the fixing piece is at least a part of.

It is further preferred that the quantity of the fixing piece is at least one.

It is further preferred that the diameter of second instlated tubular and third instlated tubular is respectively less than the straight of first instlated tubular Diameter.

It is set it is further preferred that first instlated tubular, the second instlated tubular and third instlated tubular in axial direction extend It sets.

It is further preferred that the separation layer is urethane material.

A kind of fire-proof insulation cable beneficial effect of the utility model is：Structure is simple, and fire protecting performance is good, anti-spontaneous combustion, and Guarantee that insulation performance is good in the case of fire.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model one embodiment；

In figure：1, cable, 11, core wire, 12, insulating layer, 13, clad, 14, flame-retardant layer, 15, guidance skeleton, 2, sheath, 21, separation layer, 22, thermal insulation layer, 221, fixing piece, the 222, first instlated tubular, the 223, second instlated tubular, 224, third instlated tubular.

Specific embodiment

The utility model is described further with reference to the accompanying drawings and examples.

Embodiment：As shown in Figure 1, one of embodiment of only the utility model, a kind of fire-proof insulation cable, including Cable 1 and sheath 2, the cable 1 are mutually twisted by the core wire 11 that a pair is coated with insulating layer 12, and the cable 1 has Clad 13 is provided with the flame-retardant layer for preventing the insulating layer 12 from burning between the insulating layer 12 and the clad 13 14, the sheath 2 includes the thermal insulation layer 22 for being set to the separation layer 21 of inside and being set to outside, is arranged in the thermal insulation layer 22 The first instlated tubular 222, the second instlated tubular 223 and the third instlated tubular for having fixing piece 221 and being fixed on the fixing piece 221 224。

It is the flame-retardant layer 14 between clad 13 and insulating layer first, the flame-retardant layer 14 is fire-retardant liquid layer, can be effective 1 ignition of cable is prevented, and core wire 11 is twisted, then flame-retardant layer 14 can effectively be filled cable 1.It is anti- Only internal bending cause 1 internal damage of cable cause some areas temperature it is excessively high caused by spontaneous combustion, effectively prevent high inside cable Temperature damage and spontaneous combustion.

Followed by thermal insulation layer 22, with it is traditional it is heat-insulated it is distinguishing be to be provided with multiple instlated tubulars in the thermal insulation layer 22, And multiple instlated tubulars are fixed by fixing piece 221, there are three instlated tubulars, is the first instlated tubular 222, the second instlated tubular respectively 223 and third instlated tubular 224, first instlated tubular 222, the second instlated tubular 223 and third instlated tubular 224 are in axial direction It is extended, heat can be directed at other sections of cable, carried out by three instlated tubulars when fire or high temperataure phenomena occur for outside Cooling and insulating, cable bad when effectivelying prevent external high temperature.

Fixing piece 221 described herein is Y type part.Three instlated tubulars are respectively arranged at three angle skies of fixing piece 221 In, the diameter of second instlated tubular 223 and third instlated tubular 224 is respectively less than the diameter of first instlated tubular 222, also It is that the first instlated tubular 222 is maximum, the second instlated tubular 223 and third instlated tubular 224 take second place, and the first instlated tubular 222 plays main Conductive force, in practice, when fire, the first instlated tubular 222, since thickness is different, can be generated with other two instlated tubulars Heat-conducting effect is different, and inside can also generate temperature difference, is unlikely to heat up or cool down together, is conducive to internal heat transfer, heat-conducting effect More preferably, in fire spread to a degree of time, this fireproofing of cable is more preferably.

It also will form the temperature stratification of multiple lapses of temperature from inside to outside, institute meanwhile if fire is extremely serious, inside cable Stating separation layer 21 is urethane material.Guarantee inside and outside separation layer 21 that the thermal insulation layer 22 in outside radiates, inside independently of each other Flame-retardant layer 14 play flame retardant effect, innermost core wire 11 still guarantees can work normally.

It is also to be noted that it is arc that the fixing piece 221 is at least a part of.It is convenient to fix described first heat-insulated Pipe 222, the second instlated tubular 223 and third instlated tubular 224.

Certainly, the quantity of the fixing piece 221 is at least one.Due to first instlated tubular 222, the second instlated tubular 223 and third instlated tubular 224 be in axial direction extended, a fixing piece 221 is just arranged in one section of cable interval, for plus Gu three instlated tubulars.

Finally, the signal of cable transmits for convenience, the quantity of the cable 1 is four.Drawing in order to facilitate cable 1 again It leads, guidance skeleton 15 is provided in the space that four cables 1 surround.

A kind of fire-proof insulation construction of cable of the utility model is simple, and fire protecting performance is good, anti-spontaneous combustion, and protects in the case of fire It is good to demonstrate,prove insulation performance.

The utility model is not limited to above-mentioned specific embodiment, and various modifications and changes may be made to the present invention. All foundation the technical essence of the utility model, should all to embodiment of above any modification, equivalent replacement, improvement and so on Included in the protection scope of the utility model.

Claims (10)

1. a kind of fire-proof insulation cable, including cable（1）And sheath（2）, it is characterised in that：The cable（1）It is coated by a pair There is insulating layer（12）Core wire（11）It is mutually twisted, the cable（1）With clad（13）, the insulating layer（12）With The clad（13）Between be provided with for preventing the insulating layer（12）The flame-retardant layer of burning（14）, the sheath（2）Packet Include the separation layer for being set to inside（21）With the thermal insulation layer for being set to outside（22）, the thermal insulation layer（22）In be provided with fixing piece （221）Be fixed on the fixing piece（221）On the first instlated tubular（222）, the second instlated tubular（223）With third instlated tubular （224）.

2. a kind of fire-proof insulation cable according to claim 1, it is characterised in that：The cable（1）Quantity be four.

3. a kind of fire-proof insulation cable according to claim 2, it is characterised in that：Four cables（1）The sky surrounded It is interior to be provided with guidance skeleton（15）.

4. a kind of fire-proof insulation cable according to claim 1, it is characterised in that：The flame-retardant layer（14）For fire resistant fluid Layer.

5. a kind of fire-proof insulation cable according to claim 1, it is characterised in that：The fixing piece（221）For Y type part.

6. a kind of fire-proof insulation cable according to claim 1, it is characterised in that：The fixing piece（221）At least one Part is arc.

7. a kind of fire-proof insulation cable according to claim 1, it is characterised in that：The fixing piece（221）Quantity extremely It is less one.

8. a kind of fire-proof insulation cable according to claim 1, it is characterised in that：Second instlated tubular（223）With Three instlated tubulars（224）Diameter be respectively less than first instlated tubular（222）Diameter.

9. a kind of fire-proof insulation cable according to claim 1, it is characterised in that：First instlated tubular（222）, second Instlated tubular（223）With third instlated tubular（224）In axial direction it is extended.

10. a kind of fire-proof insulation cable according to claim 1, it is characterised in that：The separation layer（21）For polyurethane Material layer.