CN110085365B - Composite fire-resistant cable - Google Patents
Composite fire-resistant cable Download PDFInfo
- Publication number
- CN110085365B CN110085365B CN201910469868.9A CN201910469868A CN110085365B CN 110085365 B CN110085365 B CN 110085365B CN 201910469868 A CN201910469868 A CN 201910469868A CN 110085365 B CN110085365 B CN 110085365B
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- China
- Prior art keywords
- cable
- layer
- tegument
- protective layer
- groove
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
Abstract
The invention discloses a composite fire-resistant cable, which comprises a triangular cable main body formed by splicing a cable outer tegument and a protective layer, wherein an elastic part is embedded in the middle of the cable outer tegument, the cable outer tegument is folded in half through the elastic part, the protective layer is arranged in the open end of one side of the cable outer tegument, the protective layer props open the whole cable outer tegument, the bent part of the cable outer tegument is propped open to form an included angle smaller than 90 degrees, a cable protective cavity is formed between the cable outer tegument and the protective layer at the bottom, and more than one cable core is arranged in the cable protective cavity. The invention can separate flame, obtain multilayer fireproof surface, increase the fire resistance time of the cable body and increase the fire resistance.
Description
Technical Field
The invention relates to the field of cables, in particular to a composite fire-resistant cable.
Background
The cable is widely applied to various fields, the fireproof performance requirement of the cable is very high, and because the outer layer of the cable is a flammable material, a fireproof coating layer is coated outside the cable for increasing the fireproof performance of the cable. But because the cable is fixed suspension setting in the eminence, for example the cable of indoor suspension line of walking, when having the fire source in the workshop, general flame all is the bottom contact with the cable earlier, so the cable outside is scribbled fire protection coating, after fire-resistant limit time when bottom fire protection coating, inside cable core still can contact the fire source, and the both sides and the top position of cable tegument are because not through the flame firing this moment, can't exert the protective effect completely, do not win fire-resistant time for interior heart yearn yet.
Disclosure of Invention
The invention aims to provide a composite fire-resistant cable which has better fire resistance, can greatly prolong the fire resistance time of the cable, exerts the protection function of an external protection layer to the maximum and obtains more fire-resistant rescue time.
The invention is realized by the following technical scheme: the utility model provides a compound fire resisting cable, the cable main part of the triangle-shaped form of constituteing including cable exterior layer and a protective layer concatenation, the department embedding sets up an elastic component in the middle of the cable exterior layer, the cable exterior layer makes whole cable exterior layer fifty percent discount through the elastic component, the protective layer is packed into to one side open end of cable exterior layer, the protective layer struts whole cable exterior layer, and make the department of bending of cable exterior layer strut and form an contained angle that is less than 90 degrees, form a cable protection chamber in the middle of the protective layer of cable exterior layer and bottom, more than one cable core sets up in the cable protection intracavity.
According to the preferable technical scheme, the cable core is partially embedded into a first groove formed in the inner side face of the cable outer tegument, a corresponding second groove is formed in the other side of the cable outer tegument corresponding to the cable core, the extending end of the cable core is buckled into the second groove in the other side after the cable outer tegument is folded, the first groove and the second groove are both semicircular, a whole circle structure is formed after the first groove and the second groove are buckled, and the cable core is arranged in the whole circle structure.
As a preferred technical scheme, a fireproof heat-insulation cotton layer is bonded in each of the first groove and the second groove.
As a preferred technical scheme, the elastic piece is an elastic memory metal sheet which is folded in half in a natural state, and the elastic piece is stretched to form an included angle through a protective layer at the bottom.
According to the preferable technical scheme, two sides of the bottom opening end of the cable outer tegument are respectively bonded with a fire insulation layer, and adjacent fire insulation layers are mutually contacted after the cable outer tegument is buckled.
According to a preferable technical scheme, the fire insulation layer comprises a fire insulation outer layer, a water storage cavity is formed in the middle of the fire insulation outer layer, and water is stored in the water storage cavity.
As a preferred technical scheme, the hardness of the protective layer is greater than that of the cable outer coating layer, and a fireproof coating layer is coated on the outer side face of the protective layer and the outer side face of the cable outer coating layer.
As a preferable technical scheme, more than one hanging ring is arranged on the top of the cable outer tegument, and the cable is hung on the top through the hanging ring.
The invention has the beneficial effects that: the invention adopts a triangular structure, protects the inner core wire and other two side surfaces by using the protection structure of the triangular bottom surface, protects the inner core wire and other two side surfaces by using the protection layer, resists fire firstly, is damaged after the protection layer reaches the fire resistance limit, enables the outer layer of the cable to be automatically buckled and clamped under the action of the elastic piece, continuously protects the inner core wire, continuously bears flame ignition, and increases the fire-resistant time.
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 overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the fire barrier of the present invention;
fig. 3 is a schematic structural diagram of the present invention after the protective layer is detached.
Detailed Description
As shown in figure 1, the composite fire-resistant cable comprises a triangular cable main body formed by splicing a cable outer layer 2 and a protective layer 11, wherein the triangular structure is large in bottom surface area, can well bear burning of bottom flame, and is used for protecting the top of the cable.
The embedding of department sets up an elastic component 6 in the middle of 2 outer tegills of cable, outer tegills of cable 2 makes the fifty percent discount of whole outer tegills of cable 2 through elastic component 6, the protective layer is packed into to one side open end of outer tegills of cable 2, the protective layer struts whole outer tegills of cable 2, and make the department of bending of outer tegills of cable 2 strutted and form an contained angle that is less than 90 degrees, form a cable protection chamber 21 in the middle of the protective layer of outer tegills of cable 2 and bottom, more than one cable core 3 sets up in cable protection chamber 21.
Wherein, 3 partial imbeds of cable core in the first recess that the medial surface of cable ectonexine 2 was seted up, the second recess 8 that corresponds is seted up to the cable ectonexine opposite side that is corresponding to the cable core, the end that stretches out of cable core 3 is in the second recess 8 of buckle income opposite side behind the cable ectonexine fifty percent discount, first recess and second recess 8 all are half circular shape, it is first, form a whole circle structure behind the second recess lock, place this whole circle structure in the cable core 3 in, it has one deck fire prevention thermal-insulated cotton layer 4 all to bond in first recess and the second recess 8.
The elastic piece 6 is an elastic memory metal sheet, and the elastic piece is folded in half when in a natural state, the elastic piece is unfolded through the protective layer at the bottom to form an included angle, and the elastic piece is folded in half when in a natural state, so that after the protective layer at the bottom is damaged by flame burning, the protective layer is damaged and falls off under the clamping force of the elastic piece, at the moment, the whole cable is buckled layer by layer, and two surfaces of the cable are utilized to continue fire prevention.
In this embodiment, the one deck fire barrier layer 7 that bonds respectively in the bottom open end both sides of cable tegillum 2, adjacent fire barrier layer 7 contacts mutually behind cable tegillum 2 lock, and after the fire barrier layer of cable core 3 through both sides seals, can regard as the further fire protection of inboard, adopts multiple protection mode, and the security is higher.
As shown in fig. 2, separate fire floor 7 including separating fire tegument 71, separate and form a water storage chamber 72 in the middle of the fire tegument, water storage intracavity water storage, after cable tegument lock, the fire floor that separates of both sides contacts each other, can prevent the flame of lower part to the destruction of cable core, separates the fire floor in addition and is close to interior heart yearn, can be fine give the water in the water storage chamber with the heat transfer, realize the heat dissipation.
The hardness of the protective layer 11 is greater than that of the cable outer coating layer, a fireproof coating layer 9 is coated on the outer side face of the protective layer 11 and the outer side face of the cable outer coating layer 2, the hardness of the protective layer must be greater than that of the cable outer coating layer, and the elastic piece can be sufficiently propped open.
In the embodiment, more than one hanging ring 5 is arranged at the top of the outer tegument of the cable, and the cable is hung at the top through the hanging rings.
In addition, in order to prevent the protective layer and the cable outer tegument from separating, more than one salient point 1 is arranged on two sides of the protective layer, concave points 12 are arranged on the inner side surface of the cable outer tegument, and the salient points 1 are buckled into the concave points 12 and tightly press the protective layer under the action of clamping force.
The invention has the beneficial effects that: the invention adopts a triangular structure, protects the inner core wire and other two side surfaces by using the protection structure of the triangular bottom surface, protects the inner core wire and other two side surfaces by using the protection layer, resists fire firstly, is damaged after the protection layer reaches the fire resistance limit, enables the outer layer of the cable to be automatically buckled and clamped under the action of the elastic piece, continuously protects the inner core wire, continuously bears flame ignition, and increases the fire-resistant time.
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 (4)
1. A composite fire resistant cable characterized by: the cable comprises a triangular cable main body formed by splicing a cable outer tegument and a protective layer, wherein an elastic part is embedded in the middle of the cable outer tegument, the cable outer tegument is folded in half through the elastic part, the protective layer is arranged in an opening end on one side of the cable outer tegument, the protective layer struts the whole cable outer tegument, the bent part of the cable outer tegument is stretched to form an included angle smaller than 90 degrees, a cable protection cavity is formed between the cable outer tegument and the protective layer at the bottom, and more than one cable core is arranged in the cable protection cavity;
the cable core is partially embedded into a first groove formed in the inner side face of the cable outer tegument, a corresponding second groove is formed in the other side of the cable outer tegument corresponding to the cable core, the extending end of the cable core is buckled into the second groove in the other side after the cable outer tegument is folded, the first groove and the second groove are both semicircular, a whole circle structure is formed after the first groove and the second groove are buckled, and the cable core is arranged in the whole circle structure;
a fireproof heat-insulation cotton layer is bonded in each of the first groove and the second groove;
the elastic piece is an elastic memory metal sheet which is folded in half in a natural state, and the elastic piece is stretched through a protective layer at the bottom to form an included angle;
the hardness of the protective layer is greater than that of the cable exterior layer, and a fireproof coating layer is coated on the outer side face of the protective layer and the outer side face of the cable exterior layer.
2. The composite fire resistant cable of claim 1, wherein: and two sides of the bottom opening end of the cable outer tegument are respectively bonded with a fire insulation layer, and adjacent fire insulation layers are mutually contacted after the cable outer tegument is buckled.
3. The composite fire resistant cable of claim 2, wherein: the fire-proof layer comprises a fire-proof outer layer, a water storage cavity is formed in the middle of the fire-proof outer layer, and water is stored in the water storage cavity.
4. The composite fire resistant cable of claim 1, wherein: the top of the cable tegument layer is provided with more than one hanging ring, and the cable is hung on the top through the hanging ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469868.9A CN110085365B (en) | 2019-05-31 | 2019-05-31 | Composite fire-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469868.9A CN110085365B (en) | 2019-05-31 | 2019-05-31 | Composite fire-resistant cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110085365A CN110085365A (en) | 2019-08-02 |
| CN110085365B true CN110085365B (en) | 2020-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910469868.9A Active CN110085365B (en) | 2019-05-31 | 2019-05-31 | Composite fire-resistant cable |
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| CN (1) | CN110085365B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4047332B2 (en) * | 2002-08-28 | 2008-02-13 | ティーブイシー、コミュニケーションズ、リミテッド、ライアビリティ、カンパニー | Cable guiding sleeve structure |
| CN203480907U (en) * | 2013-09-13 | 2014-03-12 | 董松节 | Triangular power cable |
| CN207009141U (en) * | 2017-05-25 | 2018-02-13 | 中普航（北京）教育科技有限公司 | A kind of novel high-strength durable type cable |
| CN109243696A (en) * | 2018-09-25 | 2019-01-18 | 安徽华星电缆集团有限公司 | A kind of sea cable for ship |
-
2019
- 2019-05-31 CN CN201910469868.9A patent/CN110085365B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4047332B2 (en) * | 2002-08-28 | 2008-02-13 | ティーブイシー、コミュニケーションズ、リミテッド、ライアビリティ、カンパニー | Cable guiding sleeve structure |
| CN203480907U (en) * | 2013-09-13 | 2014-03-12 | 董松节 | Triangular power cable |
| CN207009141U (en) * | 2017-05-25 | 2018-02-13 | 中普航（北京）教育科技有限公司 | A kind of novel high-strength durable type cable |
| CN109243696A (en) * | 2018-09-25 | 2019-01-18 | 安徽华星电缆集团有限公司 | A kind of sea cable for ship |
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| Publication number | Publication date |
|---|---|
| CN110085365A (en) | 2019-08-02 |
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Effective date of registration: 20200429 Address after: 225652, Yangzhou City, Jiangsu province Gaoyou Ling Tong Town Applicant after: YANGZHOU ZHONGNENG CABLE Co.,Ltd. Address before: 315100 No. 8, Lane 20, East Huangsu Road, Yinzhou District, Ningbo City, Zhejiang Province Applicant before: Song Xingbin |
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