CN206864230U - A kind of fire resistant special cable - Google Patents
A kind of fire resistant special cable Download PDFInfo
- Publication number
- CN206864230U CN206864230U CN201720622526.2U CN201720622526U CN206864230U CN 206864230 U CN206864230 U CN 206864230U CN 201720622526 U CN201720622526 U CN 201720622526U CN 206864230 U CN206864230 U CN 206864230U
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- CN
- China
- Prior art keywords
- cable
- core conductor
- silicon rubber
- frame body
- triangular walls
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a kind of fire resistant special cable, including cable body, and cable body includes cable core conductor, oversheath and Ceramic silicon rubber skeleton；Ceramic silicon rubber skeleton includes frame body, four side tube-walls of the frame body form the triangular walls of opening outwardly to central concave, four triangular walls are uniformly distributed and each bottom wall contacts with each other so as to enclose a square area at the center of frame body, and area filling of the frame body between two neighboring triangular walls has glass fiber high-temperature rope；Cable core conductor includes main core conductor and scattered core conductor, and main core conductor is embedded in the square area after being coated by the first insulating barrier, dissipates after core conductor is coated by the second insulating barrier and is separately positioned in four triangular walls；Oversheath is coated on outside Ceramic silicon rubber skeleton, has expansible sealing.The utility model proposes cable by being improved to Ceramic silicon rubber layer, solving existing cable core can not quick-replaceable technical problem.
Description
Technical field
It the utility model is related to field of cable technology, and in particular to a kind of fire resistant special cable.
Background technology
Fire resistant cable, suitable for ac rated voltage 300/500V and following, the signal detection in hot environment.
The fire-fighting that is particularly suitable for use in uses with the control of security system protective loop and the transmission line of power.Made under some particular surroundings
Fire resistant cable usually contains more cable core conductors, and these cable core conductors are generally by various lapping layers, extruded layer bag
It is rolled in the middle part of cable.Therefore, when some cores break down, it can not be changed.It can only in most cases be used as waste and old
Cable is reclaimed, and this causes the utilization rate of cable to substantially reduce (it is unspoiled to also have local cable core conductor).And
During recovery, due to cable core conductor by lapping layer, extrude the various structure sheafs such as layer and wrap up tight, recovery process is complicated, difficult, efficiency
Lowly.
Utility model content
Problem to be solved in the utility model is to provide a kind of resistance to height for the above-mentioned deficiency in the presence of prior art
Temperature fire prevention special cable, the cable carry out ingehious design by being improved to the Ceramic silicon rubber layer of conventional wire cable, solved
Existing fire resistant cable core determined because various structure sheafs are coated so as to lead to not quick-replaceable technical problem.
To achieve the above object, the utility model employs following technical scheme：
A kind of fire resistant special cable, including cable body, the cable body include cable core conductor and oversheath,
It also includes Ceramic silicon rubber skeleton；Wherein,
The Ceramic silicon rubber skeleton includes cylindric frame body, and four side tube-walls of the frame body are to central fovea
Fall into and form the triangular walls of opening outwardly, four triangular walls are uniformly distributed and each bottom wall contacts with each other so as at the center of frame body
A square area is enclosed, area filling of the frame body between two neighboring triangular walls has glass fiber high-temperature
Rope；
The cable core conductor includes main core conductor and scattered core conductor, and the main core conductor is led by four metals being mutually twisted
Line is formed, and it is by being embedded in the square area after the first insulating barrier cladding, so as to by Ceramic silicon rubber skeleton
Triangular walls bottom wall is surrounded, and inert gas is filled with the first insulating barrier, and the scattered core conductor is made up of a plain conductor, and
It is separately positioned in four triangular walls after being coated by the second insulating barrier, and the position in each triangular walls close to opening is additionally provided with
Heat conduction bar, the outward flange of the heat conduction bar cooperates with the barrel of frame body, inward flange keeps contacting with the second insulating barrier；
The oversheath is coated on outside Ceramic silicon rubber skeleton, and has expansible sealing.
Compared to prior art, the utility model has the advantages that：
Core replacing is fast, returns compared to having for existing cable for fire resistant special cable provided by the utility model
Receive fast technique effect.Specifically, traditional Ceramic silicon rubber layer is arranged to have special shape by the utility model
Bound form, loaded using the triangular walls space of the skeleton and dissipate core conductor, the space enclosed using the triangular walls bottom wall of the skeleton
To load main core conductor so that dissipate core conductor and main core conductor is coated by same layer Ceramic silicon rubber, saving material
While, cause scattered core conductor only to be taken out when needing to change or cable reclaims from the opening of triangular walls again, Ran Houjing
The sealing for crossing oversheath is extracted；And the replacing or recovery of main core conductor, then by filling inert gas in insulating barrier
To realize, that is, insulating barrier release inert gas is punctured, allows insulating barrier to narrow, can be easily to be extracted out from cable centerline.This side
Recovery of the formula for main core conductor has outstanding advantage.
Further advantage, target and feature of the present utility model embody part by following explanation, and part will also pass through
Research of the present utility model and practice are understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the schematic cross-section of fire resistant special cable described in the utility model.
Embodiment
In order that technological means, creation characteristic, reached purpose that the utility model is realized more understand and are easy to acting on
Understand, the utility model is further elaborated with reference to the accompanying drawings and detailed description：
With reference to Fig. 1, the utility model proposes a kind of fire resistant special cable, including cable body 100, the electricity
Cable body 100 includes cable core conductor 110 and oversheath 120, and it also includes Ceramic silicon rubber skeleton 130；Wherein,
The Ceramic silicon rubber skeleton 130 includes cylindric frame body 131, four side necks of the frame body 131
Wall forms the triangular walls 132 of opening outwardly to central concave, and four triangular walls 132 are uniformly distributed and each bottom wall 132a contacts with each other
So as to enclose a square area at the center of frame body 131, the frame body 131 is in two neighboring triangular walls
Area filling between 132 has glass fiber high-temperature rope 140；
The cable core conductor 110 includes main core conductor 111 and scattered core conductor 112 (four), and the main core conductor 111 is by four
The plain conductor that root is mutually twisted is formed, and it is by being embedded in the square area after the first insulating barrier 113 cladding, so as to
Surrounded by the triangular walls bottom wall 132a of Ceramic silicon rubber skeleton 130, inert gas, institute are filled with the first insulating barrier 113
Scattered core conductor 112 is stated to be made up of a plain conductor, and its by the second insulating barrier 114 coat after be separately positioned on four triangles
In wall 132, the position in each triangular walls 132 close to opening is additionally provided with heat conduction bar 150, the outward flange of the heat conduction bar 150 with
The barrel of frame body 131 cooperates, inward flange keeps contacting with the second insulating barrier 114；
The oversheath 120 is coated on outside Ceramic silicon rubber skeleton 130, and has expansible sealing 124.
In such scheme：For Ceramic silicon rubber, its be added in silicone rubber matrix it is a certain proportion of
Into porcelain filling, fluxing agent, crosslinking agent and other auxiliary agents, it is prepared by vulcanization crosslinking.Ceramic silicon rubber at normal temperatures can
Usual silicone rubber good elasticity and mechanical property are enough kept, because Ceramic silicon rubber can spend flame 500 to 700
Under, hard ceramic protective layer is formed, plays isolation burning things which may cause a fire disaster, fireproofing function, therefore using wider in fireproof cable.Although
So, but present multicore cable, almost every cable conductors be required for after coated insulation layer independent coating ceramic
Silicon rubber, technique seems complicated, and material input cost is big, especially when being changed or being reclaimed to core, these
Ceramic silicon rubber can only undoubtedly peel discarding.
Therefore, Ceramic silicon rubber layer in the such scheme provided, is first arranged to special form by the utility model
The bound form of shape, loaded using the space of triangular walls 132 of the skeleton and dissipate core conductor 112, utilize the bottom of triangular walls 132 of the skeleton
The space that wall encloses loads main core conductor 111 so that dissipates core conductor 112 and main core conductor 111 by same layer ceramics SiClx rubber
Glue is coated, therefore has both saved material, additionally it is possible to and material will not be dropped because of the replacing or recovery of cable, so as to
To secondary use.With reference to Fig. 1, replacing or recovery for dissipating core conductor 112, it is only necessary to taken out, then from the opening of triangular walls 132
Extracted by the sealing 124 of oversheath 120；And replacing or recovery for main core conductor 111, then by insulating barrier
It is interior to fill inert gas to realize, that is, insulating barrier release inert gas is punctured, allows insulating barrier to narrow, can be with light from cable centerline
Pine is extracted out.Recovery of this mode for main core conductor 111 has outstanding advantage.
Meanwhile the glass fiber high-temperature rope 140 involved by such scheme, it is to use high-temperature-resistant high type glass fibre,
Formed through special process braiding, it is a kind of elastic glass fiber rope innovated weave and formed, and has high temperature resistant, corrosion-resistant, high intensity
Etc. main performance.Further, the utility model is also provided with heat conduction bar 150 in the opening of triangular walls 132, utilizes the heat conduction bar
150 can absorb to dissipating the be powered heats that distribute of core conductor 112, and outwardly distribute, and can so allow scattered core conductor 112
Can timely it be radiated, so as to obtain longer service life.
It is as the further implementation detail of the utility model：As shown in figure 1, the outer cable of the second insulating barrier 114
It is axial arranged have pull piece 115, it is described pulling opening direction of the piece 115 towards triangular walls 132；Accordingly, the heat conduction bar
150 inboard offers the open slot (not shown) for pulling piece 115 to insert.Here, the utility model is in the second insulating barrier 114
Upper set pulls piece 115, can facilitate and extract scattered core conductor 112 from triangular walls 132.Because Ceramic silicon rubber is in normal temperature
Lower and usual silicone rubber has identical characteristic, i.e., flexible, therefore works as and take out scattered core conductor 112 from triangular walls 132
When can extrude triangular walls 132 and go out.
To make full use of cable internal clearance, in the utility model the inboard and the second insulating barrier 114 of each triangular walls 132 it
Between be also filled with glass fiber high-temperature rope 140, as shown in Figure 1.
For oversheath 120, the utility model sets what is so set：With reference to shown in Fig. 1, the oversheath 120 includes tool
There are the sheath skin 121 of inner chamber and the mica tape flame retardant coating 122 in sheath skin 121 and proof copper-wire braided screen layer 123, the cloud
Master tape flame retardant coating 122 is close to the internal layer of sheath skin 121, and the proof copper-wire braided screen layer 123 is close to the outer layer of sheath skin 121, the shield
Set skin 121 has two edge, and is drawn close by the two edge and form the sealing 124.Here, oversheath 120 is arranged to
Double-deck form of sheath skin 121, allows flame retardant coating and shielding to be placed in sheath skin 121, both ensure that the fire resistance of whole cable
Can and shielding properties, again cause oversheath 120 in the presence of stress can Ceramic silicon rubber skeleton 130 rotated, so as to
Allow the sealing 124 of oversheath 120 to be directed at any triangular walls 132 to be open, then take out and damaged core.Due to oversheath
120 overall matter are soft, therefore sealing 124 can strut in the case where dissipating the extruding of core conductor 112.It is as a kind of preferred embodiment,
The sealing 124 is glued together or is provided with folding component (not shown).Folding component can use slide fastener, fastener etc..This
In be not described further in detail.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, without departing from the objective and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (5)
1. a kind of fire resistant special cable, including cable body, the cable body includes cable core conductor and oversheath, its
It is characterised by, in addition to Ceramic silicon rubber skeleton；Wherein,
The Ceramic silicon rubber skeleton includes cylindric frame body, and four side tube-walls of the frame body are to central concave shape
Into the triangular walls of opening outwardly, four triangular walls are uniformly distributed and each bottom wall contacts with each other so as to be enclosed at the center of frame body
Into a square area, area filling of the frame body between two neighboring triangular walls has glass fiber high-temperature rope；
The cable core conductor includes main core conductor and scattered core conductor, and the main core conductor is by four plain conductor being mutually twisted structures
Into, and it is by being embedded in the square area after the first insulating barrier cladding, so as to by the triangle of Ceramic silicon rubber skeleton
Wall bottom wall is surrounded, and inert gas is filled with the first insulating barrier, and the scattered core conductor is made up of a plain conductor, and it is logical
It is separately positioned on after crossing the second insulating barrier cladding in four triangular walls, the position in each triangular walls close to opening is additionally provided with heat conduction
Bar, the outward flange of the heat conduction bar cooperates with the barrel of frame body, inward flange keeps contacting with the second insulating barrier；
The oversheath is coated on outside Ceramic silicon rubber skeleton, and has expansible sealing.
2. fire resistant special cable as claimed in claim 1, it is characterised in that the second insulating barrier outer cable
It is axial arranged to have pulling piece, the pulling opening direction of the piece towards triangular walls；Accordingly, the inboard of the heat conduction bar offers
Open slot for pulling piece insertion.
3. fire resistant special cable as claimed in claim 1, it is characterised in that the inboard of each triangular walls and the second insulation
Glass fiber high-temperature rope is filled between layer.
4. the fire resistant special cable as described in claim any one of 1-3, it is characterised in that the oversheath includes tool
There is the sheath skin of inner chamber and leaned on positioned at sheath intracutaneous mica tape flame retardant coating and proof copper-wire braided screen layer, the mica tape flame retardant coating
Nearly sheath endo-endothelial layer, for the proof copper-wire braided screen layer close to sheath outer cortex, the sheath leatherware has two edge, and by this two
Individual edge draws close to form the sealing.
5. fire resistant special cable as claimed in claim 4, it is characterised in that the sealing is glued together or sets
There is folding component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720622526.2U CN206864230U (en) | 2017-05-31 | 2017-05-31 | A kind of fire resistant special cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720622526.2U CN206864230U (en) | 2017-05-31 | 2017-05-31 | A kind of fire resistant special cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206864230U true CN206864230U (en) | 2018-01-09 |
Family
ID=60825774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720622526.2U Expired - Fee Related CN206864230U (en) | 2017-05-31 | 2017-05-31 | A kind of fire resistant special cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206864230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878027A (en) * | 2018-06-28 | 2018-11-23 | 怀宁宜庆电线电缆有限公司 | A kind of new-energy automobile tensile cable |
| CN110164600A (en) * | 2019-05-20 | 2019-08-23 | 浙江中大元通特种电缆有限公司 | Ceramic silicon rubber insulation temperature-resisting cable |
-
2017
- 2017-05-31 CN CN201720622526.2U patent/CN206864230U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878027A (en) * | 2018-06-28 | 2018-11-23 | 怀宁宜庆电线电缆有限公司 | A kind of new-energy automobile tensile cable |
| CN110164600A (en) * | 2019-05-20 | 2019-08-23 | 浙江中大元通特种电缆有限公司 | Ceramic silicon rubber insulation temperature-resisting cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20180531 |