CN207409283U - Flexible mineral matter fills fireproof cable - Google Patents
Flexible mineral matter fills fireproof cable Download PDFInfo
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- CN207409283U CN207409283U CN201721433764.5U CN201721433764U CN207409283U CN 207409283 U CN207409283 U CN 207409283U CN 201721433764 U CN201721433764 U CN 201721433764U CN 207409283 U CN207409283 U CN 207409283U
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- elastic tube
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- elastic
- fire
- resilient lugs
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Abstract
The utility model discloses a kind of flexible mineral matter to fill fireproof cable, including：Elastic tube array, it includes seven elastic tubes, and wherein elastic tube described in the six roots of sensation is around an elastic tube arrangement, and the elasticity tube section is regular hexagon, and it is seamless spliced to contact with each other between adjacent three elastic tubes；Insulating layer, it is arranged on outside the elastic tube array, it is and coaxial with the elastic tube array, it is arc-shaped resilient lugs that the insulating layer inner wall uniform intervals, which are set there are six cross section profile, each resilient lugs are separately positioned between the recess portion that the two neighboring elastic tube of outermost layer is formed, and the resilient lugs and the two neighboring elastic tube of outermost layer are tangent.The utility model can preferably tackle elastic deformation and because the phenomenon of expanding with heat and contract with cold of season generation that cable suspension generates by the flexible contact and hollow gap reserved between the two of elastic tube array and resilient lugs.
Description
Technical field
The utility model is related to control field of cables.More specifically, the utility model is related to a kind of flexible mineral matter to fill out
Fill fireproof cable.
Background technology
At present, the fire prevention measure required by China's electric wire design discipline, it is passive after simply catching fire to electric wire
Fire-fighting, in practice of construction and operation, since the increase of electric wire, the concentration of laying, the quality of construction too poor etc. exacerbate
Electric wire fire, and the still high-molecular organic material that traditional fire-resisting cable uses, it is easily carbonized under flame condition
Failure, while in cabling process, due to the weight of its own, prolonged suspension can make cable locally generate stress from
And the aging that wire-protecting is accelerated to cover, it is in addition existing to control the conducting wire strand that cable often coat insulating layer in the production process
Composition cable core is combined, is so easier to make cable core temperature rapid increase in use.
Utility model content
One purpose of the utility model is to provide a kind of flexible mineral matter filling for not occurring to burn, bending deformation quantity is big
Fireproof cable.
In order to realize these purposes and further advantage according to the present utility model, it is anti-to provide a kind of flexible mineral matter filling
Thermoelectricity cable, including：
Elastic tube array, it includes seven elastic tubes, wherein elastic tube described in the six roots of sensation is arranged around an elastic tube,
The elasticity tube section is regular hexagon, and it is seamless spliced to contact with each other between adjacent three elastic tubes, described in every
Elastic tube central coaxial is provided with conducting wire, has been sequentially filled that minerals are fire-retardant to be filled out between the conducting wire and the elastic tube from inside to outside
Material and elastomeric cushion material；
Insulating layer is arranged on outside the elastic tube array, and coaxial with the elastic tube array, in the insulating layer
Wall uniform intervals set there are six cross section profile be arc-shaped resilient lugs, the cross section profile circular arc of the resilient lugs
Corresponding central angle is 95 °, and each resilient lugs are separately positioned on what the two neighboring elastic tube of outermost layer was formed
Between recess portion, and the resilient lugs and the two neighboring elastic tube of outermost layer are tangent, while folded by between two point of contacts
The corresponding central angle of circular arc is 60 °, and each outermost layer elastic tube does not contact with the insulating layer inner wall；
Metal knitted shielded layer, is coated on the outer surface of the insulating layer, and the thickness of the metal establishment shielded layer is
0.4~0.8mm；
Fire-retardant band lapping layer is coated on the outer surface of the metal knitted shielded layer, the fire-retardant band lapping layer
Thickness be 1.3~1.6mm；
Sheath is coated on the outer surface of the fire-retardant band lapping layer, and the thickness of the sheath is 1.8~2.2mm.
Preferably, the material that the metal knitted shielded layer uses is signal bronze.
Preferably, the insulating layer is to exempt to vulcanize EP rubbers thermoplastic elastomer (TPE) insulating layer.
Preferably, the sheath uses low-smoke halogen-free polyolefin material.
Preferably, fire-retardant band lapping layer is used is replaced by fire-resistant isinglass belt with refractory inorganic staple fiber adhesive-layer
It is superimposed the fire-retardant band formed.
Preferably, the resilient lugs inner hollow, and hollow space cross section profile is oval for one, it is described elliptical
Short axle is provided with multiple parallel to institute on the center bisector of the edge contour of the resilient lugs in the hollow space
State ellipse short shaft and the elastomeric support column being connected with the hollow space inner wall.
The utility model includes at least following advantageous effect：
1st, by being avoided that cable burns in conducting wire periphery package minerals fire-retardant filler, while each wire is independent
Isolation is set, and reduces the shortcomings that wire stranding easily heats up.
It 2nd, can be preferably by the flexible contact and hollow gap reserved between the two of elastic tube array and resilient lugs
Reply cable suspension generate elastic deformation and because season generate phenomenon of expanding with heat and contract with cold.
Part is illustrated to embody by the further advantage, target and feature of the utility model by following, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the cross section structure schematic diagram of the utility model；
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be noted that in the description of the utility model, term " transverse direction ", " longitudinal direction ", " on ", " under ", " preceding ",
The orientation or position relationship of the instructions such as " rear ", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on
Orientation shown in the drawings or position relationship, are for only for ease of description the utility model and simplify and describe, and are not instruction or dark
Show that signified device or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the utility model.
As shown in Figure 1, the utility model provides a kind of flexible mineral matter filling fireproof cable, including：
1 array of elastic tube, it includes seven elastic tubes 1, and elastic tube 1 surrounds an elastic tube 1 wherein described in the six roots of sensation
Arrangement, 1 section of elastic tube is regular hexagon, and it is seamless spliced to contact with each other between adjacent three elastic tubes 1, every
1 central coaxial of elastic tube described in root is provided with conducting wire 2, and ore deposit has been sequentially filled from inside to outside between the conducting wire 2 and the elastic tube 1
Substance fire-retardant filler 3 and elastomeric cushion material 4, the main component of mineral fire-retardant filler 3 include aluminium oxide and sodium metasilicate
Deng；
Insulating layer 5 is arranged on outside 1 array of elastic tube, and coaxial with 1 array of elastic tube, the insulation
Layer 5 inner wall uniform intervals set there are six cross section profile be arc-shaped resilient lugs 6, the section of the resilient lugs 6
The corresponding central angle of profile circular arc is 95 °, and each resilient lugs 6 are separately positioned on the two neighboring elasticity of outermost layer
Between the recess portion that pipe 1 is formed, and the resilient lugs 6 and the two neighboring elastic tube 1 of outermost layer are tangent, while two cut
The folded corresponding central angle of circular arc is 60 ° between point, and each outermost layer elastic tube 1 does not contact with 5 inner wall of insulating layer；
Metal knitted shielded layer 7 is coated on the outer surface of the insulating layer 5, the thickness of the metal establishment shielded layer
For 0.4~0.8mm；
Fire-retardant band lapping layer 8, is coated on the outer surface of the metal knitted shielded layer 7, and the fire-retardant band is wrapped
The thickness of layer 8 is 1.3~1.6mm；
Sheath 9, is coated on the outer surface of the fire-retardant band lapping layer 8, the thickness of the sheath 9 for 1.8~
2.2mm。
So above-described embodiment in use just can be by avoiding in 2 periphery package minerals fire-retardant filler 3 of conducting wire
Cable burns, while individually isolation is set each wire 2, can be reduced the shortcomings that conducting wire 2 is twisted easily heating, and be passed through bullet
Property 1 array of pipe and resilient lugs 6 flexible contact and hollow gap reserved between the two can preferably tackle cable suspension
The elastic deformation of generation and the phenomenon because the cable of season generation expands with heat and contract with cold.
In another embodiment, the material that the metal knitted shielded layer 7 uses is signal bronze, due to signal bronze
Electric conductivity well can largely adsorb conducting static electricity, while prevent intermediate cable core from generating hard arc.
In another embodiment, the insulating layer 5 is to exempt to vulcanize EP rubbers thermoplastic elastomer (TPE) insulating layer 5, the insulation
Elastic properties of materials insulating properties is preferable, while small without sulphur pollution.
In another embodiment, the sheath 9 uses low-smoke halogen-free polyolefin material, and such cable is more environmentally-friendly, replaces
9 material of sheath is small to the pollution of environment after discarded.
In another embodiment, fire-retardant band lapping layer 8 is used is glued by fire-resistant isinglass belt and refractory inorganic staple fiber
The glue-line fire-retardant band that alternately superposition is formed itself also has one simultaneously since as inorganic material burning does not occur for mica sheet
Fixed insulation effect, and it is at low cost, therefore be that can guarantee good flame retardant effect.
In another embodiment, 6 inner hollow of resilient lugs, and hollow space cross section profile is oval for one, institute
Elliptical short axle is stated on the center bisector of the edge contour of the resilient lugs 6, is provided in the hollow space more
A elastomeric support column being connected parallel to the ellipse short shaft and with the hollow space inner wall, the branch of such resilient lugs 6
Support property is more preferable, permanent deformation will not be generated because of long-time service, while hollow structure also saves material cost.
Although the embodiment of the utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization, it can be applied to the field of various suitable the utility model completely, for those skilled in the art,
Other modification is easily achieved, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (6)
1. a kind of flexible mineral matter fills fireproof cable, which is characterized in that including：
Elastic tube array, it includes seven elastic tubes, wherein elastic tube described in the six roots of sensation is described around an elastic tube arrangement
Elastic tube section is regular hexagon, and it is seamless spliced to contact with each other between adjacent three elastic tubes, in the every elasticity
Tube hub is coaxially arranged with conducting wire, be sequentially filled from inside to outside between the conducting wire and the elastic tube minerals fire-retardant filler and
Elastomeric cushion material；
Insulating layer is arranged on outside the elastic tube array, and coaxial with the elastic tube array, and the insulating layer inner wall is equal
Even interval setting is arc-shaped resilient lugs there are six cross section profile, and the cross section profile circular arc of the resilient lugs corresponds to
Central angle for 95 °, each resilient lugs are separately positioned on the recess portion that the two neighboring elastic tube of outermost layer is formed
Between, and the resilient lugs and the two neighboring elastic tube of outermost layer are tangent, while circular arc folded between two point of contacts
Corresponding central angle is 60 °, and each outermost layer elastic tube does not contact with the insulating layer inner wall；
Metal knitted shielded layer, is coated on the outer surface of the insulating layer, the thickness of the metal establishment shielded layer for 0.4~
0.8mm；
Fire-retardant band lapping layer is coated on the outer surface of the metal knitted shielded layer, the thickness of the fire-retardant band lapping layer
It spends for 1.3~1.6mm；
Sheath is coated on the outer surface of the fire-retardant band lapping layer, and the thickness of the sheath is 1.8~2.2mm.
2. flexible mineral matter as described in claim 1 fills fireproof cable, which is characterized in that the metal knitted shielded layer makes
Material is signal bronze.
3. flexible mineral matter as described in claim 1 fills fireproof cable, which is characterized in that the insulating layer is to exempt to vulcanize second
Third rubber thermoplastic elastic body insulating layer.
4. flexible mineral matter as described in claim 1 fills fireproof cable, which is characterized in that the sheath uses low smoke and zero halogen
Polyolefine material.
5. flexible mineral matter as described in claim 1 fills fireproof cable, which is characterized in that fire-retardant band lapping layer used
It is to replace the fire-retardant band that superposition is formed with refractory inorganic staple fiber adhesive-layer by fire-resistant isinglass belt.
6. flexible mineral matter as described in claim 1 fills fireproof cable, which is characterized in that in the resilient lugs inside
Sky, and hollow space cross section profile is oval for one, the center of edge contour of the elliptical short axle in the resilient lugs
On bisector, it is provided with and multiple is connected parallel to the ellipse short shaft and with the hollow space inner wall in the hollow space
Elastomeric support column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721433764.5U CN207409283U (en) | 2017-10-31 | 2017-10-31 | Flexible mineral matter fills fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721433764.5U CN207409283U (en) | 2017-10-31 | 2017-10-31 | Flexible mineral matter fills fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207409283U true CN207409283U (en) | 2018-05-25 |
Family
ID=62409291
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721433764.5U Active CN207409283U (en) | 2017-10-31 | 2017-10-31 | Flexible mineral matter fills fireproof cable |
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| CN (1) | CN207409283U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031559A (en) * | 2018-08-29 | 2018-12-18 | 长飞光纤光缆股份有限公司 | High-core-number high-density sleeve optical cable |
| CN110607706A (en) * | 2019-09-27 | 2019-12-24 | 丹阳市银海镍铬化工有限公司 | Anti-torsion steel strand capable of shielding electromagnetic radiation |
| CN110725145A (en) * | 2019-09-27 | 2020-01-24 | 丹阳市银海镍铬化工有限公司 | Anti-torsion steel strand |
| CN113835171A (en) * | 2021-07-28 | 2021-12-24 | 杭州富通通信技术股份有限公司 | Light heterogeneous optical cable |
-
2017
- 2017-10-31 CN CN201721433764.5U patent/CN207409283U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031559A (en) * | 2018-08-29 | 2018-12-18 | 长飞光纤光缆股份有限公司 | High-core-number high-density sleeve optical cable |
| CN109031559B (en) * | 2018-08-29 | 2020-01-14 | 长飞光纤光缆股份有限公司 | High-core-number high-density sleeve optical cable |
| CN110607706A (en) * | 2019-09-27 | 2019-12-24 | 丹阳市银海镍铬化工有限公司 | Anti-torsion steel strand capable of shielding electromagnetic radiation |
| CN110725145A (en) * | 2019-09-27 | 2020-01-24 | 丹阳市银海镍铬化工有限公司 | Anti-torsion steel strand |
| CN113835171A (en) * | 2021-07-28 | 2021-12-24 | 杭州富通通信技术股份有限公司 | Light heterogeneous optical cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Flexible mineral-filled fireproof cable Effective date of registration: 20230302 Granted publication date: 20180525 Pledgee: Bank of China Limited Guigang Branch Pledgor: GUANGXI QUNXING CABLE CO.,LTD. Registration number: Y2023450000022 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |